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Slot liners

Subclass of:

310 - Electrical generator or motor structure

310010000 - DYNAMOELECTRIC

310040000 - Rotary

310179000 - Windings and core structure

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DocumentTitleDate
20090322179STATOR FOR AN ELECTRICAL MACHINE - The invention describes a stator for an electrical machine, in particular a universal motor, comprising a stator core (12-31-2009
20120169173STATOR FOR MOTOR - The present invention relates to a stator for a motor including: a stator core having an annular back yoke and a plurality of teeth; an upper insulator having an annular body portion formed correspondingly to the back yoke of the stator core and a plurality of teeth insulation portions formed correspondingly to the teeth of the stator core so as to cover the upper sides of the teeth of the stator core; a lower insulator having an annular body portion formed correspondingly to the back yoke of the stator core and a plurality of teeth insulation portions formed correspondingly to the teeth of the stator core so as to cover the upper sides of the teeth of the stator core; a plurality of insulation films each adapted to be inserted into the slot to cover the side of the stator core exposed to the inside of the slot between the upper insulator and the lower insulator; and coils adapted to be wound on the teeth of the stator core enclosed by the upper insulator, the lower insulator and the insulation films.07-05-2012
20110193444ELECTRIC MOTOR - The electric motor of the present invention is capable of improving efficiency of level-winding coil cables and increasing lamination factors of coils. The coil cable, which is wound on first bobbins as first coils, has connection parts. The connection parts are respectively extended from a winding-start point of the first coil wound on each of the first bobbins and a winding-termination point thereof, for parallel winding, through a groove section located on the inner side of a second coil wound on each of second bobbins so as not to interfere with the second coil.08-11-2011
20130033145ELECTRIC MACHINE MODULE INSULATION SYSTEM AND METHOD - Embodiments of the invention provide an electric machine module including a housing which can include a machine cavity. In some embodiments, an electric machine can be at least partially positioned within the machine cavity and can include a stator assembly. The stator assembly includes a stator core with slots. In some embodiments, conductors can be positioned in the slots and can include a first insulation. At least one insulation member can be disposed over at least a portion of the conductors. The insulation member can include a first element and a second element that can each comprise different constituent materials that include different properties.02-07-2013
20100096945INSULATOR FOR MOTOR, STATOR, MOTOR AND COMPRESSOR - An insulator for a motor includes an annular section, a plurality of tooth sections and a plurality of connecting sections. The tooth sections extend radially inward of an inner circumferential surface of the annular section and are circumferentially arranged about the annular section. The connecting sections connect an inner circumferential surface of an annular section to ends of the tooth sections. Each connecting section includes a circumferential planar portion extending circumferentially from the end of a corresponding one of the tooth sections, and a radial planar portion extending radially from the end of the corresponding one of the tooth sections. Preferably, a stator includes a pair of the insulators, a motor includes the stator, and a compressor includes the motor.04-22-2010
20100109470Alignment of Segmented Stators for Electric Machines - A stator segment for a segmented stator of an electric machine includes insulative material configured for overlapping with insulative material of an adjacent stator segment to provide continuous insulation along a joint between the adjacent stator segments. Additionally, or alternatively, the stator segment can include one or more alignment tabs configured to engage a surface of an adjacent stator segment to inhibit relative axial movement between adjacent stator segments.05-06-2010
20130134821Insulation Bobbin of a Stator - An insulation bobbin unit of a stator includes first and second insulation bobbins. The first insulation bobbin has a first body and a plurality of first extension members. The first body has a first assembly hole. Each extension member has a first wound portion having a first top plate and one first side wall. The first top plate has a smaller thickness than that of the first side wall. The second insulation bobbin has a second body and a plurality of second extension members. Each second extension member includes a second wound portion having a second top plate and one second side wall. The first side wall is aligned with one edge of the second top plate that is not mounted with the second side wall, and the second side wall is aligned with one edge of the first top plate that is not mounted with the first side wall.05-30-2013
20130049520STATOR STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to an integral or a non-integral stator structure for reducing the manufacturing complexity by eliminating the boot part of the tooth part thereof. The stator structure is made of a core material, and includes: a plurality of stator units, each having a tooth part and an annular part, in which different stator units can be connected with each other integrally or non-integrally, so as to form an annular stator structure. The tooth part of each stator unit is formed in a pillar shape that has a first end and a second end, and the first end is connected to the annular part.02-28-2013
20130049519METHOD AND APPARATUS FOR INSULATING INDUCTION MACHINE COIL CONNECTORS - Method and apparatus for insulating induction machine conductive connectors by sliding a closed-end insulating sheath over the connector. The sheath is circumferentially secured to the conductive connector with a biasing element, such as an elastomeric stretchable fabric, stretch tape or heat shrink material. Additional insulative materials as well as resin curing catalysts or accelerants may be added to the sheath.02-28-2013
20130069478ELECTRICAL MACHINE WITH WINDING CONDUCTOR HAVING CERAMIC INSULATION - An electrical machine is described that has a ceramic material as insulation around the winding wire. In some embodiments, the ceramic material is hexagonal boron nitride (HVR), aluminum oxide, aluminum nitride, or beryllium oxide. The ceramic material may be rolled, brush, sprayed, or dipped onto the wire using a binder-less or binder-containing solution. The whole wire may be coated, or just parts that are particularly subject to abrasion of the conductor and/or electrical contact with other conductive materials.03-21-2013
20090091206WINDING HEAD ISOLATION ELEMENT AND MULTIPHASE ELECTRIC MOTOR - The invention concerns a winding head isolation element (04-09-2009
20090079291INTERPHASE INSULATING SHEET OF ROTATING ELECTRIC MACHINE, METHOD FOR MANUFACTURING INTERPHASE INSULATING SHEET, AND ELECTRIC COMPRESSOR - An interphase insulating sheet of a rotating electric machine is disclosed. The interphase insulating sheet includes a first insulating portion arranged between first coil ends of two different phases, a second insulating portion arranged between second coil ends of two different phases, and bridge pieces inserted in slots. The first insulating portion and the second insulating portion each includes an outer surface facing radially outward of the stator core and an inner surface facing radially inward of the stator core. The bridge pieces each include a first end portion that is heat welded to the first insulating portion and a second end portion that is heat welded to the second insulating portion. When the first end portion is heat welded to the inner surface of the first insulating portion, the region including the edge of the first end portion is heat welded to the first insulating portion. When the second end portion is heat welded to the outer surface of the second insulating portion, at least the region including an opposing end of the second insulating portion facing the first insulating portion is heat welded to the second end portion.03-26-2009
20110012475INTERPHASE INSULATIVE STRUCTURE FOR MOTOR AND METHOD FOR COUPLING INTERPHASE INSULATIVE SHEET IN MOTOR - An interphase insulative structure for a motor. The motor includes a stator core, a plurality of teeth arranged along an inner circumference of the stator core, and first to third phase windings wave wound to the stator core. The interphase insulative structure includes first interphase insulators and second interphase insulators. The first and second interphase insulators are connected between adjacent coil end conductive portions of the second winding at least at a second end of the stator core.01-20-2011
20130062988VEHICULAR BRUSHLESS AC GENERATOR AND EXCITING-COIL BOBBIN UNIT THEREFOR - The vehicular brushless AC generator comprises: a bobbin disposed surrounding the axial end face of the thick ring portion of the yoke and the outer circumferential surface of the cylindrical portion so that an exciting coil can be wound thereon; a plate extending radially outwardly from an end of the cylindrical portion, for joining the bobbin to the yoke; and a stator disposed outside the rotor retaining an air gap, in which magnetic flux produced by the exciting coil propagates; wherein the bobbin is provided with a thick portion for extending a creeping distance, formed along the outer circumferential edge of the bobbin joined to the yoke.03-14-2013
20130162098BRUSHLESS MOTOR - A motor part of a fuel pump is a brushless motor having a stator and a rotor. The stator has a core, a coil set and an insulator, which holds the core and the coil set in an insulated manner. The coil set has a plurality of coils wound about a tooth part and a plurality of crossing wires connecting the coils. The insulator is formed by stacking central ring parts of a plurality of stator units in an axial direction. At least one of crossing wire holder parts is formed of a combination of guide projections, which are formed on the different central ring parts. The length of the brushless motor in the axial direction can thus be shortened.06-27-2013
20120286620COMPOSITE INSULATING FILM - Provided is a flexible and self-supporting insulating film including a base polymer layer and a partially cured poly(amide)imide layer applied to the base polymer layer. The composite insulating film may be used as slot liner to provide insulation to the components of the electric motor. The partially cured poly(amide)imide layer of the composite insulation film maybe further cured by the heat generated by the operation of the electric motor.11-15-2012
20110285240STATOR, MOTOR, AND COMPRESSOR - A stator includes a core and an insulator. The core has a plurality of annularly arranged tooth portions. The insulator is disposed on an end portion of the core, and has an annular wall portion extending in a direction departing from the core. A protrusion protrudes radially outward across an entire circumference of the wall portion, and the protrusion is provided on an outer circumferential surface of the wall portion.11-24-2011
20110291520ALIGNMENT OF SEGMENTED STATORS FOR ELECTRIC MACHINES - A stator segment for a segmented stator of an electric machine includes insulative material configured for overlapping with insulative material of an adjacent stator segment to provide continuous insulation along a joint between the adjacent stator segments. Additionally, or alternatively, the stator segment can include one or more alignment tabs configured to engage a surface of an adjacent stator segment to inhibit relative axial movement between adjacent stator segments.12-01-2011
20110291519Segmented Stator Assemblies Having End Caps - Segmented stator assemblies having a plurality of stator segments and a plurality of end caps are disclosed. According to one example embodiment, a segmented stator assembly includes a plurality of stator segments and a plurality of end caps. Each stator segment has a yoke portion and a tooth portion extending from the yoke portion. Each end cap is positioned over one of the stator segments. Each end cap includes a body portion positioned at least partially over the yoke portion of its associated stator segment. At least one of the body portions includes at least a first post that cooperates with a post of an adjacent end cap to define a first wire management tie-down. The stator assembly further includes a stator wire coupled to the first wire management tie-down. Stator assemblies and end caps having other wire management and routing features are also disclosed.12-01-2011
20120286619ROTARY ELECTRIC MACHINE AND METHOD FOR MANUFACTURING STATOR USED THEREIN - The rotary electric machine includes a rotor, and a stator including an stator core that is formed by laminating and integrating magnetic steel plates, and concentrated winding coils that are mounted to respective teeth, the stator being disposed so as to surround the rotor. Bobbins each including a trunk portion and first and second guide portions that are disposed so as to protrude from two longitudinal ends of an upper surface of the trunk portion are disposed so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth. The concentrated winding coils are configured by winding a conductor wire a predetermined number of times around the teeth so as to pass through a concave space that is formed by the trunk portions and the first and second guide portions at two axial ends of the teeth.11-15-2012
20090102312INSULATOR AND ROTATING ELECTRIC MACHINE - An insulator allowing a coil to be wound with large tension exerted and a rotating electric machine having the insulator are provided. An insulator (04-23-2009
20090102311Insulator for electric rotating machine - In an insulator to be inserted into each slot to be attached to adjacent teeth formed at a rotor or a stator of an electric rotating machine, the insulator is composed of insulator segments that are made divisible in a longitudinal direction parallel to a rotational axis of the rotor at a position corresponding to 2 slots and are made divisible in a lateral direction perpendicular to the rotational axis of the rotor, the insulator segments have surfaces to be coupled to each other of a same shape in the lateral direction, and the insulator segments have a creepage distance that is made longer than a distance in the lateral direction, thereby enabling to elongate the creepage distance and to improve work efficiency.04-23-2009
20090102310Stator of motor - A stator of a motor is provided with a stator core having a plurality of teeth and a plurality of windings wound around teeth of the stator core. The stator also has an insulator that is provided with a plurality of lead-out guide portions that enable lead-out wires of the windings to be drawn out from the tooth winding portions in a state of being close to the tooth winding portions.04-23-2009
20090189476INTERPHASE INSULATING MEMBER AND ROTATING ELECTRIC MACHINE - An interphase insulating member allowing reduction in size of a rotating electric machine is provide. The interphase insulating member includes a flat portion interposed between and insulating neighboring two phases of coil ends, and a three-dimensional portion protruding from the flat portion and guiding the coil. On a surface of the flat portion, epoxy resin layer is provided as a reinforcing member.07-30-2009
20090108696INTERPHASE INSULATING SHEET OF ROTATING ELECTRIC MACHINE, AND ELECTRIC COMPRESSOR - An interphase insulating sheet of a rotating electric machine is disclosed. The interphase insulating sheet includes a first insulating portion arranged between first coil ends of two different phases, a second insulating portion arranged between second coil ends of two different phases, and bridge pieces inserted in slots. The first insulating portion includes a first coupling aid. The second insulating portion includes a second coupling aid. The first coupling aid and the second coupling aid each includes an outer surface facing radially outward of the stator core and an inner surface facing radially inward of the stator core. The first end portion of the bridge piece is located on the outer surface of the first coupling aid, and the second end portion of the bridge piece is located on the inner surface of the second coupling aid.04-30-2009
20090267442Stator assembly - A stator assembly is provided and includes a laminated core and a one-part insulator having cover walls for covering edges of the laminated core, wherein first projections and a second projection both having a height smaller than the difference between the height of the cover walls and the thickness of the laminated core are formed on one side surface of the insulator in such a manner as to make contact with a part of one axial end side surface of the laminated core, whereby a gap which corresponds to the projection distance of the first and second projections and which serves as a clearance space for chips scraped by the edges of the laminated core from the surfaces of the cover walls is provided between the insulator and the laminated core, resulting in ensuring that the insulator is snap-fitted on the laminated core in good shape.10-29-2009
20110204742Rotating Electric Machine - A rotating electric machine comprises a stator and a rotor. In the rotor, numerous slots are formed along a circumferential direction. In the each of slots, a first stator coil and a second stator coil are inserted and insulated by an insulator inserted before inserting the coils in the slots. The insulator encircles the first and second stator coils so as to be formed into an S shape. The center portion thereof extends over the area between the first and second stator coils. One end of the insulator is held between one surface of the center portion of the insulator and the first stator coil. Other end of the insulator is held between another surface of the center portion of the insulator and the second stator coil.08-25-2011
20090127969INSULATING BOBBIN FOR STATOR OF ROTARY MACHINE - An insulating bobbin for disposition between a stator core and a stator winding of a stator of a rotating machine, the stator winding being wound around the stator core by way of the insulating bobbin, the insulating bobbin comprising a coil end section at which an end portion of the stator winding is disposed, a slot side section forming a slot for winding thereon the stator winding, and a corner section having a curved surface and connecting between the coil end portion and the slot side portion, the corner section having a first radius of curvature at a side closer to the coil end section and a second radius of curvature at a side closer to the slot side section, the second radius of curvature being larger than the first radius of curvature.05-21-2009
20110031842COMPONENT FOR AN ELECTRIC MACHINE - A component for an electric machine includes a spool having a main body portion provided with a first end portion that extends substantially uninterrupted to a second end portion through an intermediate portion. A plurality of mounting elements are provided on the first end portion. A star member is operatively connected to the spool. The star member includes a main body, a plurality of flap members that extend from the main body and collectively define a central opening, and a plurality of mounting members that extend into the central opening. The plurality of mounting members engage with corresponding ones of the plurality of mounting elements to detachably mount the star member to the first end portion of the spool.02-10-2011
20110221297WINDING INSULATION ARRANGEMENT FOR AXIAL FLUX MACHINES09-15-2011
20090200891Electric Motor Having A Field Assembly With Slot Insulation - An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.08-13-2009
20090243421ELECTRIC MOTOR STATOR AND PERMANENT MAGNET-TYPE ELECTRIC MOTOR USING THE SAME - An electric motor stator according to the present invention includes two resin insulation components, each resin insulation component including a long side portion, facing a side face of the teeth section, and two short side portions, extending from respective ends of the long side portion and facing respective end faces of the laminated core in a lamination direction. The laminated core is clamped by the two resin insulation components from a direction along surfaces of the electromagnetic steel plates, and fitting portions of the two short side portions of each of the two resin insulation components are used to fit the two resin insulation components to each other.10-01-2009
20120194028INSULATION ASSEMBLY FOR ELECTRIC MACHINE - An insulation assembly is provided that includes a generally annularly-shaped main body and at least two spaced-apart fingers extending radially inwards from the main body. The spaced-apart fingers define a gap between the fingers. A slot liner may be inserted within the gap. The main body may include a plurality of circumferentially distributed segments. Each one of the plurality of segments may be operatively connected to another of the plurality of segments to form the continuous main body. The slot liner may be formed as a single extruded piece defining a plurality of cavities. A plurality of conductors (extendable from the stator assembly) may be axially inserted within a respective one of the plurality of cavities. The insulation assembly electrically isolates the conductors in the electric motor from the stator stack and from other conductors.08-02-2012
20090079292INTERPHASE INSULATING SHEET OF ROTATING ELECTRIC MACHINE, METHOD FOR MANUFACTURING INTERPHASE INSULATING SHEET, AND ELECTRIC COMPRESSOR - An interphase insulating sheet of rotating electric machine is disclosed The interphase insulating sheet includes a first insulating portion, a second insulating portion, and at least one bridge piece. The first insulating portion includes at least one first coupling aid integrally provided with the first insulating portion to extend from an opposing end of the first insulating portion facing the second insulating portion. The second insulating portion includes at least one second coupling aid integrally provided with the second insulating portion to extend from an opposing end of the second insulating portion facing the first insulating portion. A first end portion of the bridge piece is heated welded to the first coupling aid. A second end portion of the bridge piece is heated welded to the second coupling aid. The first coupling aid has a first positioning hole. The second coupling aid has a second positioning hole. The first end portion of the bride piece includes a third positioning hole, which overlaps the first positioning hole. The second end portion of the bride piece includes a fourth positioning hole, which overlaps the second positioning hole.03-26-2009
20100187943ELECTRICAL MACHINE WITH ELECTRICALLY INSULATED WINDING ELEMENTS - The invention relates to an electrical machine (07-29-2010
20100181863Electronic motor - There is provided an electronic motor in which a stator core is thinned to obtain an increased diameter of a rotor is to produce a high power output, and a stator can be positioned with high accuracy at the time when a coil is wound on the stator. The outside peripheral surface of a yoke part 07-22-2010
20100207482STATOR FOR AC MOTOR - A stator of an alternating current (AC) motor is disclosed. The stator includes a stator core having a divided structure including and an outer stator core fitted around the inner stator core while being connected to an inner circumference of the inner stator core. The inner stator core has a rotor insertion hole formed at the inner circumference of the inner stator core and a plurality of tooth members arranged in a circumferential direction at an outer circumference of the inner stator core. Since the coils are wound directly on the tooth members through intervals between the neighboring tooth members at the outer circumference of the inner stator core, manufacturing of the stator is facilitated. In addition, since insertion of the coils into the slots is not performed through gaps formed on an inner side of the inner stator core where the rotor insertion hole is formed, the gaps may be minimized. As a result, the performance of the AC motor is improved.08-19-2010
20100148623HIGH VOLTAGE MOTOR WINDINGS - An electric submersible pump (ESP) includes a pump and an electric motor operationally connected to the pump, the electric motor includes a rotor; a stator having a plurality of stator slots; a plurality of magnet wires positioned in each stator slot; and a member positioned within the stator slot, the member maintaining the magnet wires substantially parallel to one another.06-17-2010
20100141079ELECTRIC MOTOR - An electric motor comprising a stator and a rotor, the stator comprising: a stator core having a yoke and a plurality of teeth extending inwardly from the yoke, a slot being formed between adjacent teeth; windings wound around the teeth; and a dielectric slot liner disposed between the stator core and the windings in each slot for insulating the stator core from the windings. Each slot liner comprises a body conforming the stator core in the slot and two ends each with a lip structure protruding relative to the body in a radial direction of the stator to increase the creepage distance between the winding and a distal end of a corresponding tooth of the stator core.06-10-2010
20110109189ROTARY MACHINE STATOR - According to one embodiment, a rotary machine stator includes a cylindrical stator core, an insulating film, and a ring-shaped insulator. The stator core includes a slot and a slot opening. The insulating film is formed cylindrical to be in close contact with the inner surface of the slot. The insulating film includes a gate on both ends that is bent to form a film opening as wide as or wider than the slot openings. The insulating film is inserted in the slot such that a film axial direction end of the insulating film protrudes from an axial direction end of the stator core. The insulator is attached to both ends of the stator core. The insulator includes an insulator slot and an insulator opening in substantially the same shape as the slot and the slot opening, respectively, and a lock to lock the film axial direction end.05-12-2011
20090072654COIL INSULATOR, ARMATURE COIL INSULATED BY THE COIL INSULATOR AND ELECTRICAL ROTATING MACHINE HAVING THE ARMATURE COIL - A coil insulator of an electrical rotating machine used as a main insulator for insulating a bundle of conductors formed of a plurality of insulated wires to form an armature coil provided in a slot of a rotor core or a stator core of an electrical rotating machine, wherein the coil insulator includes a mica layer including at least one of a peeled-off mica and a composite mica, a woven- or unwoven cloth including at least one of inorganic and organic materials, hexagonal crystal boron nitride particles having a graphitization index of 1.8 or more, and thermosetting polymer organic resin which integrally connects the mica layer and the hexagonal crystal boron nitride particles to each other, and the hexagonal crystal boron nitride particles is oriented in a longitudinal direction of the coil.03-19-2009
20110037338STATOR FOR ELECTRIC MOTOR - The invention relates to a stator with a plurality of field coils, wherein the yoke teeth, which bear the field coils, of the poles are connected with their free ends to a stator ring, and wherein adjacent pole shoes or poles are connected to one another.02-17-2011
20100133947ELECTRIC MOTOR CORE MEMBER - An electric motor core member includes a body having an inner diametric portion including an inner arcuate surface and an outer diametric portion including an outer arcuate surface. The electric motor core member further includes a plurality of wall members provided on the main body. Each of the plurality of wall members projects outwardly from the outer arcuate surface and is arranged in a spaced relationship to define a plurality of conductor isolation channels. Each of the plurality of conductor isolation channels is adapted to receive one of a plurality of conductors with the plurality of wall members providing electrical isolation between adjacent ones of the plurality of conductors.06-03-2010
20110109188Partial Discharge Resistant Motor Slot Insulation - Systems and methods for reducing or preventing partial discharge between turns of a single coil within an electric motor by placing insulating barriers between different pluralities of wire turns in a single coil. One embodiment comprises an electric motor. The motor includes a rotor and a stator, where the stator has multiple coils of wire that are positioned in passageways in the stator to form electromagnets. Each wire coil has multiple wire turns, and insulating barriers are positioned between different sets of wire turns within the coil. In one embodiment, the stator includes a slot liner in each passageway to electrically isolate all of the wire turns in each coil from the walls of the passageway. The wire coils may be formed with wire that has an insulating coating which is separate from the insulating barriers.05-12-2011
20110018382STATOR AND ELECTRICAL APPARATUS - A plurality of stator teeth 01-27-2011
20110241474ARMATURE AND MOTOR - An armature includes a core-back, insulator members, coils and insulating sheets. The insulating sheets are arranged between the coils adjacent to one another. Each of the insulator members includes a flange-shaped inner wall portion positioned radially inwards of each of the insulating sheets. The inner wall portions of the insulator members adjacent to each other include opposing portions opposed to each other in a radially spaced-apart contactless relationship.10-06-2011
20090079290METHOD FOR SPACING ELECTRICAL CONDUCTORS AND RELATED DEVICES - A method of spacing a plurality of electrical conductors for carrying electrical current in an electrical machine may include positioning between the electrical conductors an uncured spacer body. The uncured spacer body may include a curable material, and an activatable heat generating material mixed with the curable material. The method may further include activating the activatable heat generating material to heat the curable material to form a cured spacer to thereby space the electrical conductors in the electrical machine.03-26-2009
20100013344COIL BOBBIN FOR MOTOR - A coil bobbin has a body part, a first outer flange part provided at one end of the body part and a second outer flange part provided at the other end of the body part. The first outer flange part has a widthwise dimension larger than that of the second outer flange part. The first outer flange part has leg portions at both ends in the widthwise direction at the lower end. The second outer flange part has a leg portion at the lower end. The coil bobbin is preferably supported by the leg portions of the first outer flange part and the leg portion of the second outer flange part.01-21-2010
20120187797STATOR ASSEMBLY HAVING A PHASE-TO-PHASE INSULATOR, AND A METHOD OF ASSEMBLYING A STATOR ASSEMBLY - An insulator assembly for a stator assembly of an electric machine includes an annular ring attached to a stator core, and a plurality of coil separators supported by the annular ring and extending from the annular ring axially along a longitudinal axis. One of the coil separators is disposed between each adjacent pair of the coils to prevent contact between adjacent coils having a different electrical phase. The coil separators are slideably inserted between the adjacent pairs of coils, with the annular ring positioning and supporting the coil separators.07-26-2012
20110074241ROTATING ELECTRICAL MACHINE AND COIL - According to one embodiment, there is provided a rotating electrical machine including a core, a coil extending from the core, and an electromagnetic shield which is provided outside the core, and has a plurality of shoulders projecting toward the coil. The coil includes an insulator covering outside of a conductor, a resistance layer formed on a surface of the insulator and contacting the core, and at least one potential grading layer formed on a surface of the insulator adjacent to the resistance layer. A boundary between the resistance layer and potential grading layer is provided at a position farther from the core than a point on a surface of the coil, where a distance between the coil and a shoulder of the electromagnetic shield closest to the core is the shortest.03-31-2011
20100264774INSULATOR STRUCTURE OF MOTOR, AND MOTOR-INTEGRATED PUMP - An insulator structure of a motor, includes: a stator core having a plurality of protruding tooth portions which are disposed along an inner periphery of the stator core or an outer periphery of the stator core; a pair of first and second insulators respectively mounted to a first end portion and a second end portion in an axial direction of the stator core, wherein a plurality of cover portions are provided for each of the pair of the first and second insulators so as to cover the plurality of the respective tooth portions; and a winding wound around a tooth portion of the tooth portions covered with the respective cover portions, the winding being capable of causing a magnetic force to the tooth portion by an energizing; wherein with the pair of the first and second insulators, the cover portion's second head end portion in an axial direction of the first insulator in the axial direction and the cover portion's first head end portion in an axial direction of the second insulator in the axial direction mate with each other, the cover portion having the head end portion in the axial direction provided with a first fitting portion and the cover portion having the head end portion in the axial direction provided with a second fitting portion fittable with the first fitting portion are provided for each of the pair of the first and second insulators, the cover portion provided with the first fitting portion and the cover portion provided with the second fitting portion are so disposed as to face each other in such a configuration as to interpose therebetween a center axis of the stator core, and the first insulator and the second insulator which is substantially the same as the first insulator in configuration and is reversed in the axial direction are configured to face each other, such that the first fitting portion of the first insulator mates with the second fitting portion of the second insulator.10-21-2010
20090230810Cassette Coil and Rotating Electrical Machine Having the Cassette Coil - A cassette coil comprising an insulator bobbin including a core tube around which a wire coated with an insulating film is wound, forming a coil, and a pair of plate-shaped flanges provided at both ends of the core tube, the flange including a cutout portion opening in a side, wherein the cassette coil includes an insulation wall between a winding start part which is one end of the coil of the wire and an outermost wire part located on the outermost side of the coil of the wire and close to the flange.09-17-2009
20080203845Insulating Mask Arrangement, Armature and Electrical Machine - The invention relates to an insulating mask arrangement for electrically insulating an electric winding from an iron core (08-28-2008
20110050026INSULATION ASSEMBLY FOR A STATOR CORE - An assembly for providing electrical insulation in a stator core of a vehicular electric machine is provided. The stator core has a channel and the assembly comprises a first conductive element disposed through the channel, and a second conductive element disposed through the channel and substantially adjacent to the first conductive element. The assembly also comprises a first electrically insulating film having a first end residing between the first and second conductive elements.03-03-2011
20100253175ISOLATOR RING FOR AN ELECTRIC MOTOR - A stator assembly includes a stator stack and a plurality of conductors extending from the stator stack. An isolator/assembly ring is located on the stator stack. The isolator/assembly ring includes a plurality of inwardly protruding fingers. A method of assembling the stator assembly includes threading the plurality of conductors through the stator stack such that each of the plurality of fingers on the isolator/assembly ring is located between respective ones of the plurality of conductors.10-07-2010
20110095641DIELECTRIC EXTRUSION FOR STATOR SLOT LINERS - An electric motor includes a rotor and a stator assembly concentrically located about the rotor. The stator assembly includes a stator stack and a plurality of spaced apart stator teeth extending radially from the stator stack. The plurality of stator teeth define a plurality of stator slots. A plurality of slot liners are each inserted within a respective one of the stator slots. The slot liners are each formed from a length of extruded dielectric material. A method of manufacturing the electric motor includes inserting the extruded slot liners into the stator slots, then inserting a plurality of conductors into the respective one of the plurality of cavities that are defined by the extruded slot liner.04-28-2011
20110148245ASSEMBLING METHOD FOR A STATOR AND STATOR PRODUCED THEREBY - A laminated stator and a method for making a laminated stator of an electric motor. The method includes arranging a plurality of stator laminations into lamination stacks spaced axially from one another, each lamination stack including a first group of stator laminations including an annular portion and a plurality of tooth portions extending from a periphery of the annular portion, and a second group of stator laminations including only tooth portions positioned to correspond with the tooth portions of said first group. The method further includes winding stator windings around selected subsets of the plurality of teeth while the lamination stacks are spaced axially and meshing the lamination stacks with one another so the annular portions of the lamination stacks are axially adjacent one another and the plurality of teeth are intermeshed with the plurality of another stack.06-23-2011
20110148244APPARATUS AND METHOD FOR ELECTRICALLY INSULATING END TURNS OF A STATOR ASSEMBLY - An apparatus and method for providing electrical insulation between adjacent end turns at different phases within a stator assembly. In one embodiment, the invention is directed to a stator assembly comprising: a stator core having a plurality of slots; at least two coils of different phases wound on the stator core through the slots and having an end turn that extends from the stator core; and one or more separator members positioned between adjacent end turns of the coils.06-23-2011
20100019611MOTOR/GENERATOR PHASE INSULATION ARTICLE AND METHOD FOR MANUFACTURING - Apparatus including a monolithic, motor/generator phase insulation article having a manufactured state and a ready-to-use state. The insulation article has longitudinally-spaced-apart first and second tabs and flexible, transversely-spaced-apart first and second legs each having a first end monolithically joined to the first tab and a second end monolithically joined to the second tab. The first and second tabs are disposed longitudinally closer together in the manufactured state than in the ready-to-use state. In the manufactured state the first and second legs each have a more serpentine shape, and in the ready-to-use state the first and second legs each have a less serpentine shape. A method for manufacturing the insulation article is also described which cuts a monolithic, substantially-rectangular sheet of motor/generator phase insulation to create the insulation article.01-28-2010
20120098381STATOR, BRUSHLESS MOTOR, AND MANUFACTURING METHOD OF THE SAME - An inner rotor type brushless motor includes a stator. The stator is made of a plurality of stator sections. Each one of the stator sections has a plurality of core members, an insulator, and a winding wound on the core members via the insulator. The core member includes a yoke portion and a tooth portion. The insulator includes a ring portion to connect the core members. Since each stator section can provide sufficient distance and space between two core members on the same stator section, it is easy to wind the winding on the tooth portions. The stator sections can be assembled along an axial direction to form the stator. The yoke portions are circumferentially arranged to connect each other to form a magnetic path.04-26-2012
20110115330High efficiency alternator bobbin - A rotor assembly is disclosed for use with an alternator. The rotor assembly includes a bobbin assembly, a claw pole assembly having an integrated hub on which the bobbin assembly is positioned, a shaft that is received in the claw pole assembly, and a slipring assembly connected to the shaft. The bobbin assembly includes thin first and second end caps, a metal sleeve, a ring of inner tape, a field coil, and a ring of outer tape. The first and second end caps each have inner and outer flaps. The inner flaps are folded inwardly so that the end caps fit over the metal sleeve. The ring of inner tape is wrapped around the inner flaps of both end caps to adhere the first and second end caps to the metal sleeve. The field coil is wrapped around the inner ring of tape, inner end caps, and metal sleeve. The outer flaps on the end caps are inwardly folded around the field coil. The ring of outer tape is adhered to the folded outer flaps and the field coil. The claw pole assembly includes a front claw pole section and a rear claw pole section.05-19-2011
20120098380End Caps for Stator Segments of Segmented Stator Assemblies - An example end cap of a stator segment is provided for use in locating wires in a segmented stator assembly in desired positions. The end cap generally includes a body and an inboard wall. An identifier is defined by the inboard wall of the end cap for use in determining wire sizes to be used with the end cap. Terminal pockets are provided in the body for receiving the wires and making desired electrical connections, and steps located in the terminal pockets help secure the connectors in the terminal pockets. Plateaus, and troughs defined in the plateaus, are located outside the terminal pockets for use in trimming wires received in the terminal pockets as desired. And, retaining structures are located around the end cap to help with locating the wires in the desired positions.04-26-2012
20120038239DRY MICA TAPE AND INSULATION COILS MANUFACTURED THEREWITH - A dry mica tape includes a base material, a binder resin layer A formed on the base material and including an epoxy resin and an accelerator, a mica paper layer formed in contact with the binder resin layer A, and a binder resin layer B formed in contact with the mica paper layer, including an epoxy resin, and providing a cured resin with a higher glass transition point than that of a cured resin of an impregnating varnish only by reacting with an impregnating varnish including an epoxy resin impregnated into the dry mica tape wound around a conductor.02-16-2012
20120001514STATOR BAR - A high voltage stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands, and an electric insulation applied around the conductive element. The permittivity at the corners of the electric insulation decreases by less than 60% from an inner insulation zone facing the conductive element towards an outer insulation zone.01-05-2012
20120025661OUTER-ROTOR SALIENT-POLE CONCENTRATED WINDING MOTOR - An outer-rotor salient-pole concentrated winding motor includes a salient-pole concentrated winding stator and a rotor. The salient-pole concentrated winding stator includes stator core, coils and insulators. The stator core has a plurality of teeth that extend outward in a radial direction of the stator. Each of the insulators includes a projecting engaging portion and a recessed engaging portion. The projecting engaging portion projects outward in the circumferential direction. The recessed engaging portion is formed so that an outer separation wall of the insulator is recessed inward in the circumferential direction. The projecting engaging portion and the recessed engaging portion of adjacent insulators engage with each other when the teeth are inserted into the insulators.02-02-2012
20120025663ROTATING ELECTRIC MACHINE - A rotating electric machine includes a rotor, a stator and a load side bracket. The rotor has an outer rotor surface around a rotational axis. The stator is provided to surround the outer rotor surface. The stator includes a stator core and a stator coil. The stator core has teeth. Each of the teeth is inserted in the stator coil. The stator coil includes a coil end which is provided on a load side of the stator. The stator coil has an inner coil surface facing the teeth, an outer coil surface which is a reverse side of the inner coil surface. One end and another end of the wire are formed on the outer coil surface. The load side bracket has a groove in which the coil end is provided.02-02-2012
20120025662OUTER ROTOR MOTOR - An outer rotor motor includes a stator and a rotor. The stator includes a stator core having a plurality of teeth, coils and insulators retaining the coils. The insulators are connected to each other in an annular configuration such that the teeth are inserted into the insulators. Each of the insulators includes a body portion and an outer peripheral flange. Each of the insulators further includes an auxiliary tooth portion on at least one of two axial ridge portions. The axial ridge portions include bonding portions between the body portion and the outer peripheral flange. The auxiliary tooth portion includes a rotor-facing surface facing the rotor and a tooth-contacting surface contacting one of the side surfaces in the circumferential direction.02-02-2012
20120153767MOUNTING STRUCTURE FOR SLOT PAPER IN A MOTOR STATOR - A mounting structure for slot paper in a motor stator. The slot paper is embedded in stator slots and includes a paper bottom, a paper side, and a paper front. A lug boss is protruded between two adjacent tooth block segments and protrudes from the inner wall of an outer ring. Two ends of the slot paper extend out of each stator slot. Two ends of the paper bottom are locked between the lug bosses respectively arranged on the upper end insulator and the lower end insulator. One end of each tooth block segment is provided with a clip slot and the paper front near the opening is embedded therein. The structure is simple, has a precise slot paper positioning function, does not occupy space of the stator slot, maximizes the slot filling ratio of the slots, and thus improves the overall performance of the motor.06-21-2012
20120248926Apparatus And Method For Making Pre-Shaped Insulating Sheets Intended To Be Inserted Into Stator Or Rotor Slots - Apparatus (10-04-2012
20100244615STATOR FOR ROTARY ELECTRIC MACHINE AND METHOD OF MANUFACTURING THE STATOR - A stator core for a rotary electric machine is provided. The stator includes an annular stator core having a plurality of slots punched and arranged in the circumferential direction, being straight in the axial direction, and a stator winding consisting of wire members. The wire members have respective straight portions accommodated in respective slots. Each of the wire members has a conductor portion having a rectangular cross section and an insulating coating covering the conductor portion. An adhesive member is provided between each of the straight portions and the wall surface of each slot. In each slot, the adhesive member adheres the straight portions to the wall surface. Thus, the stator core can maintain the space factor of the wire members accommodated in each slot and suppress vibration of the wire members during the operation of the rotary electric machine to reliably reduce generation of peculiar noise or magnetic noise.09-30-2010
20120161571MOTOR - A motor includes a rotor, a stator, an insulating member and a coil. The insulating member made of insulating films is inserted in a slot formed through a stator core of the stator. Cuff portions are formed in the coil-side insulating film by bending both ends thereof. An opening is formed in the coil-side insulating film at a region located at an intersection between a first bend line along which the coil-side insulating film is bent into a curved shape so as to fit the slot and a second bend line along which the coil-side insulating film is bent for forming the cuff portion. The stator core-side insulating film is laid on the coil-side insulating film such that the cuff portion overlaps a surface of the stator core-side insulating film on the stator core side and the stator core-side insulating film covers at least a part of the opening.06-28-2012
20120161570ELECTRIC MOTOR STRUCTURE TO MINIMIZE ELECTRO-MAGNETIC INTERFERENCE - An electric motor is configured with a stator core assembly that includes a stator core having a plurality of winding slots. A plurality of stator windings pass through the plurality of winding slots that include slot liners configured to provide electrostatic shields surrounding the plurality of stator windings. The electrostatic shields are referenced to an electrical location to reduce common mode currents associated with the electric motor06-28-2012
20100052462Armature and electric motor having the same - Winding guide portions of an insulator are received in slots, respectively, of a core. Each of windings is electrically insulated from the core by a winding guide wall of a corresponding one of the winding guide portions in each of corresponding two of slots of the core. The winding guide wall of at least one of the winding guide portions is configured differently from the winding guide wall of each of the rest of the winding guide portions and includes a radial bottom wall section, which is radially outwardly spaced from a radial bottom wall section of a corresponding one of the slots by a predetermined distance and contacts a corresponding one of the windings.03-04-2010
20100052461INSULATING MEMBER AND STATOR - An insulator is provided between a stator core and a conductive wire provided on the stator core. The insulator includes a wound portion, around which the conductive wire is wounded, having a substantially rectangular shape; and a flange, formed in the axial end of the wound portion in the stator tooth tip side, for pressing the conductive wire in the axial direction (radial direction relative to the rotation axis of a rotor in a configuration of a rotating electrical machine). The flange includes four corner portions at its four corners, and intermediate portions formed between the four corner portions to have a width (B03-04-2010
20120175992STATOR FOR COMPRESSOR MOTOR - A stator for a compressor motor that has a structure in which the ends of insulation films inserted into slots of a stator core are supportedly locked to locking protrusions formed on upper and lower insulators for insulating the upper and lower sides of the stator core, thereby allowing the insulation films to be securely supported and providing easy assembling process for the insulation film and the upper and lower insulators.07-12-2012
20120175993WINDING FRAME WITH MAGMATE AND STATOR CORE WITH THE SAME - A stator core including at least two or more stator core-continuous bodies each formed by coupling at least two or more unit cores to each other, each unit core consisting of a tooth portion having a coupling slot and a coupling projection formed along both ends thereof and connected to adjacent unit core by means of a connection portion formed at each of both end portions of the tooth portion, wherein the at least two or more stator core-continuous bodies are fitting-connected to each other by means of the coupling slots formed at one side ends thereof and the coupling projections formed at the other side ends thereof to form the stator core having a round shape.07-12-2012
20120256511STATOR - A stator includes a stator core that has at least one tooth which extends radially inward from the stator core and has a shape of a quadrangular prismoid, an insulator that is made of a resin, and a coil that is formed by winding a rectangular wire around the tooth via the insulator. The insulator has a thickness which varies depending on a relative positional relationship between the rectangular wire and the tooth, or the coil is formed in a staircase configuration to conform to the quadrangular prismoid shape of the tooth and the insulator has a varying thickness to conform to the staircase configuration.10-11-2012
20120256512STATOR STRUCTURE FOR ROTARY ELECTRIC MACHINE AND METHOD FOR ASSEMBLING STATOR - A stator structure for a rotary electric machine includes a stator core having a cylindrical shape in which slots and pole pieces are formed on an inner peripheral side and alternately arranged in a circumferential direction, a conductor segment which is a conducting wire having a rectangular cross section inserted in one of the slots through an insulator being connected with a conductor segment similarly inserted in another slot to form a coil. Each insulator has a shape including a pair of opposite side surface portions connected with an intermediate portion along a wall surface defining the slot. Each insulator includes end protrusions facing each other at free ends of the side surface portions to position the conductor segments. The insulators are made of an insulating and elastic material.10-11-2012
20120299432MOTOR CORE, STATOR, AND METHOD FOR MANUFACTURING STATOR - An annular motor core has a plurality of split core pieces, each of which includes a yoke portion and a tooth. The split core pieces are circumferentially located and arranged in an annular shape such that the yoke portions of the core pieces form an annular shape as a whole and that the distal ends of the teeth of the core pieces face inward or outward each in a radial direction of the core. The core further includes an annular holder, which has joint portions at a plurality of positions in a circumferential direction of the holder. A first end of each of the core pieces is pivotably joined to the corresponding one of the joint portions. Each core piece can be pivoted about the corresponding joint portion relative to the holder such that a second end of the core piece moves in a radial direction of the holder.11-29-2012
20120235534CONDUCTOR INSULATION ARRANGEMENT FOR ELECTRIC MACHINE WINDING - An electric machine includes a core with a plurality of slots. A plurality of conductors are positioned in each of the plurality slots, with each slot including an equal number of conductors. At least one slot liner is also positioned in each of the plurality of slots. Each slot liner provides at least one slot liner channel in the associated slot, and each of the plurality of conductors extend through one of the slot liner channels. Differing numbers of slot liner channels are provided in the plurality of slots. Accordingly, all slots have the same number of conductors positioned therein, but all slots do not have the same number of slot liner channels.09-20-2012
20120080976STATOR FOR ELECTRICAL ROTATING MACHINE - Included are a pair of insulators arranged on axial end surfaces of a split core, and an insulating film attached to lateral side surfaces of the tooth part, for insulating the split core from a coil wound around the tooth part. Each insulator includes projections projecting further than a tooth front end part in the circumferential direction, slits which are formed in the respective projections to a corresponding axial end surface side of the tooth front end part and into which the insulating film is inserted, and ribs formed, on an end surface side in the circumferential direction, in the respective projections. The insulating film inserted into the slits is folded back to a back yoke part side with the ribs interposed therein, and fixed by being interposed between the ribs at tip portions of projections of adjacent insulators. Accordingly, the insulating film can be assuredly fixed and prevented from escaping from a slot.04-05-2012
20090322180ROTARY ELECTRIC MOTOR - A rotary electric motor includes a cylindrical rotor having an outer peripheral side, a stator provided to surround the outer peripheral side of the rotor with a gap between the stator and the rotor, and a load side bracket having a recess and provided on a load side of the stator. The stator includes stator coils and a stator core having teeth portions around which the stator coils are wound. A load side coil end of each of the stator coils protrudes from a load side end face of the stator core. At least two of an inner peripheral surface, an outer peripheral surface, and an end face of the load side coil end contact an inner surface of the recess via an insulator.12-31-2009
20130009512ELECTROMAGNET FOR STATOR AND MANUFACTURING METHOD OF ELECTROMAGNET FOR STATOR - A stator is provided with a tooth, an insulator attached to the tooth, and a coil wound around the insulator. The insulator is provided with a winding barrel around which the coil is wound in a plurality of layers, a flange projecting in a radial direction from one end of the winding barrel, and a notch formed in the flange and through which the line material of the coil is inserted. Projecting lengths of the flange from the winding barrel on the both sides of the notch are set different from each other. When the line material of the coil is guided from the outside of the flange to the winding barrel through the notch for winding the coil on the winding barrel, by supporting and bending the line material at a portion having a longer projecting length of the flange, the line material passes the notch easily.01-10-2013
20130020901STATOR FOR ELECTRIC ROTARY MACHINE - A stator for an electric rotary machine includes: a stator core having a plurality of slots; and segmented coils of a plurality of phases, wherein: the segmented coils of a plurality of phases have pluralities of coil bars which are inserted individually in the plurality of slots in the stator core and which extend substantially in a straight line and pluralities of connection coils which connect together the coil bars of the same phase to thereby make up extending portions; and the coil bars are fixed in place individually in the slots in the stator core in such a state that the coil bars each are covered by an insulation material.01-24-2013
20080246364Phase insulator - A phase insulator for a stator of a motor insulates between stator coils. The stator has plural stator coils inserted in slots in a stator core. The phase insulator insulates stator coils from each other. The phase insulator includes insulating sheet portions and bridge portions. The insulating sheet portions are disposed at both end portions of the stator core for insulating between the coil ends of the stator coils. The insulating sheet portions are made of a first material. The bridge portions connect the insulating sheet portions. The bridge portions are inserted in the slots of the stator core. The bridge portions are made of a second material. The second material has higher elastic characteristics than the first material.10-09-2008
20130140936MOTOR STATOR - A motor stator includes a body member having multiple wire-winding grooves that is formed of a stack of silicon steel plates and defines axially a middle section and two end sections, the wire-dinging grooves in the end sections being greater than in the middle section, two wire racks each having foot tubes respectively inserted into the end sections of the body member in the wire-winding grooves beyond the middle section, the foot tubes having an inner diameter not less than the part of the wire-winding grooves corresponding to the middle section, and insulation sheets having a length greater than the height of the middle section of the body member and being respectively set in the wire-winding grooves and the corresponding foot tubes.06-06-2013
20130140935Slot Liner and Interphase Insulator Combination - Electrically insulating material so foldable as to form a slot liner and an interphase insulator combination so configured as to be inserted in the slots of the stator or the rotor of an electric machine to prevent coils from being in contact with the slot walls and to prevent separate coils inserted in the same slot to be in direct contact with one another is described herein.06-06-2013
20100277030LAMINATED STATOR ASSEMBLY - A stator core for a generator includes a multiple of core laminations along an axis, each of the multiple of core laminations define at least one leg which extends in a radial direction from the axis.11-04-2010
20110273053ARMATURE OF ELECTRIC MOTOR - An object of the invention is to provide an armature of an electric motor that provides a maximum of space for winding without causing an increase of the magnetic resistance and reduction of the coil space factor. The armature of the electric motor includes a stator yoke 11-10-2011
20130147306Spacer For Supporting Conductors In An Electric Machine - A spacer for supporting conductors in a stator assembly of an electric machine includes a plurality of positioning elements cooperating with various conductors in the specials region of the winding arrangement. The spacer illustratively includes an insulating body formed of an electrically non-conductive material and including surfaces facing axially inwardly for contacting short conductors and crossover pockets for receiving crossover conductors which electrically connect an inner winding set and an outer winding set. The spacer further illustratively includes phase lead pockets facing axially outwardly for receiving a terminal phase lead conductor.06-13-2013
20130147307Dry Mica Tape, Electrically insulated Coil Using the Same, and Electrical Rotating Machine Using the Same - The purpose of the present invention is to provide a dry mica tape, and an electrically insulated coil using the same, and a electrical rotating machine using the same, with reduced amount of VOC (Volatile Organic Compound) generated during manufacturing thereof, while both of excellent impregnation property and excellent heat resistance are achieved. The dry mica tape, and the electrically insulated coil using the same, and the electrical rotating machine using the same, the dry mica tape including mica, a substrate, an adhesive which glues the mica and the substrate together, in which the adhesive includes unsaturated polyester compound which has a reactive double bond.06-13-2013
20130154432Stator Of An Electric Machine With Voltage Insulation - A stator of a rotating electric machine includes a circular stator lamination stack having stator teeth projecting radially therefrom and distributed over the circumference and axial slots formed between the teeth. The stator carries a winding of an insulated conductor which is designed for the application of a maximum electric voltage in the low-voltage range up to about 1 kV. The winding is constructed as concentric winding in the form of individual tooth coils, and voltage insulating material is provided inside the slots between the teeth and the winding. To reduce the electric field strength in manufacture-induced voids of the varnish-impregnated or resin-impregnated stator, the voltage insulating material comprises an areally shaped layer of a high-resistance conductive material.06-20-2013
20130154433STATOR AND PROTECTING MEMBER FOR STATOR - There is provided a stator that can suppress degradation in insulating performance and electrical strength performance, shorten a work time, and improve winding efficiency and heat radiation. The stator 06-20-2013
20130187513STATOR AND METHOD FOR MANUFACTURING THE SAME - A core segment sub-assembly has a first holding groove, which holds a start part of a coil wire of a three-phase winding, and a second holding groove, which holds an end part of the coil wire of the three-phase winding, at positions on an axial end surface of an annular covering part and shifted in a circumferential direction relative to a tooth covering part, on which the winding is provided. The first holding groove and the second holding groove sandwiches the tooth covering part and are separated more from each other as extending in a radially outward direction. The positions and the directions of the first holding groove and the second holding grooves are matched to the paths of the coil wire wound by a flyer type winding machine. The stator can thus be made suited to a winding process by the flyer type winding machine.07-25-2013
20120019092COMPRESSOR - A compressor includes a casing and a motor disposed inside the casing. The motor is welded to the casing at a plurality of weld positions. The motor includes a core, a coil, at least one insulating member and a gap. The core has an annular back yoke portion, a plurality of tooth portions projecting radially inwardly from the back yoke portion and a slot formed between the tooth portions adjacent to each other. The coil is disposed in the slot. The insulating member is disposed in the slot to insulate the coil from the core. The gap is provided between the back yoke portion and the insulating member.01-26-2012
20130193800ARMATURE AND MOTOR - An insulator of an armature includes an upper resin member and a lower resin member. Each of the upper and lower resin members includes decreased thickness portions. Axial positions of the decreased thickness portions of the upper and lower resin members are arranged to overlap at least partially with each other. Each of the upper and lower resin members further includes a rib arranged to project from a corresponding one of the decreased thickness portions. The rib improves the strength of the corresponding decreased thickness portion and reduces the likelihood that any of the decreased thickness portions of the upper and lower resin members will be damaged when the two members are fitted to each other.08-01-2013
20120086300Divided Core of EPS Motor Stator - Disclosed is a divided core of an EPS motor stator that is easy in assembly and disassembly of divided cores and that can accurately maintain concentricity of the divided cores when the divided cores are assembled, wherein the divided core including a yoke forming a periphery of the stator core and a tooth protruded from the yoke to an inner circumferential direction, further includes an upper lug circumferentially protruded on an upper side of a distal end of the yoke, and a lower lug circumferentially protruded on a lower side of the other distal end of the yoke.04-12-2012
20120086299INSULATION STRUCTURE FOR WINDING OF MOTOR STATOR - The present invention provides an improved insulation structure for winding of motor stator, which is an improved design of structure for providing effective insulation for stator winding and improving winding volume. A stator piece that is arranged inside a motor body forms arrayed holes for wire winding. The holes receive insulation plates that are configured to correspond to the shape of the holes to be fit therein. Opposite ends of the stator piece receive end rings to fix and assemble thereto. End tabs formed at edges of the insulation plates are arranged to fit into and cover edge surface of a winding slot of each of the holes to realize complete coverage of the insulation for stator winding thereby ensuing operation safety when the motor is activated and put into operation.04-12-2012
20130207506INSULATED STRUCTURE OF SHIELD TYPE MOTOR COIL - An insulated structure of shield type motor coil includes an iron core having a multiplicity of bobbins, at least a plastic shell having a multiplicity of insulators and is pressed against the iron core, a multiplicity of enamel-covered coils and each of the insulators is one-to-one correspondent to and pressed against the bobbin, a multiplicity of enamel-covered coils each of them is correspondent to and wound around the bobbin and the multiplicity of enamel-covered coils has a first connecting lead and a second connecting lead extended there from, a wire fastener secured in the plastic shell for holding the first connecting lead and the second connecting lead, a protecting jacket connected to the plastic shell and having a containing space for containing the multiplicity of enamel-covered coils, as well as a supporting frame for coating the protecting jacket and having a multiplicity of supporting posts thereof.08-15-2013

Patent applications in class Slot liners