| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310120270 | Mechanical element | 32 |
| 20130119786 | LINEAR ACTUATOR - A head of an output shaft of a linear actuator is modified so as to absorb vibrations that may be transmitted between the output shaft and a moving object. A linear actuator has an output shaft with a leading end to which a head is fixed. The head has an O-ring that is fitted thereto, and a part of the O-ring outwardly projects from the head. The O-ring is made of rubber that is softer than the material of the head. The head is contained in a containing space in an attachment, and in this condition, the O-ring contacts an inner circumferential surface of the containing space by deforming. | 05-16-2013 |
| 310120290 | Cooling | 13 |
| 20090195089 | Mover of a Linear Motor with an Outer Heat Radiating Housing - A mover of a linear motor with an outer heat radiating housing comprises a body and an outer heat radiating housing. The body includes an iron core and coils. The outer heat radiating housing covers the body and is integrally jointed to the body. The outer heat radiating housing is defined with a plurality of passages. When the current is supplied to the coils of the body, the body will be driven, the heat energy produced by the body can be conducted to the outer heat radiating housing sufficiently. In addition, after the cooling liquid is conducted to the passages, the heat radiating effect of the mover can be improved. | 08-06-2009 |
| 20090195088 | APPARATUS FOR GENERATING AMPLIFIED COOLING AIR FLOWS - A linear motor comprising a coil assembly and a magnet assembly is provided with a cooling apparatus which comprises a segmented air knife assembly. The segmented air knife assembly has a plurality of slot openings distributed along its length which is coupled to the linear motor and it is operative to discharge cooling air into a gap between the coil assembly and magnet assembly in a discharge direction. An inclined surface extends from the plurality of slot openings and slopes at an obtuse angle away from the discharge direction of the cooling air. Each slot opening is individually configured to discharge the cooling air in the discharge direction at a sufficient velocity so as to entrain atmospheric air along the inclined surface to amplify the cooling air that is so discharged. | 08-06-2009 |
| 20120194007 | LINEAR MOTOR MOVER WITH HEAT DISSIPATION UNIT - A linear motor mover with heat dissipation unit includes: a base seat; a mover having several coils sequentially upright arranged with first ends of the coils disposed in the base seat; a heat dissipation unit having a hollow and substantially slat-shaped cooling section, one face of the cooling section being immediately adjacent to second ends of the coils opposite to the base seat, whereby the heat generated by the coils during operation of the mover can be conducted from the coils to the cooling section, the cooling section containing a cooling fluid therein, the cooling fluid flowing within an interior of the cooling section to carry away the heat absorbed by the cooling section; and an insulation section disposed between the heat dissipation unit and the coils. With the heat dissipation unit, the linear motor has better heat dissipation efficiency and driving efficiency and is assembled at lower cost. | 08-02-2012 |
| 20110198946 | LINEAR MOTOR COIL ASSEMBLY WITH COOLING DEVICE - A linear motor coil assembly includes a base plate ( | 08-18-2011 |
| 20090315414 | CANNED LINEAR MOTOR ARMATURE AND CANNED LINEAR MOTOR - A canned linear motor armature includes an armature winding, a picture-frame-shaped casing, a flat can, and a plurality of refrigerant flow channels. The armature winding includes a coil. The picture-frame-shaped casing has an opening and encloses the armature winding. The flat can has a plate surface to close and seal the opening of the picture-frame-shaped casing. The plurality of refrigerant flow channels are provided within the can to face the coil of the armature winding. | 12-24-2009 |
| 20100181848 | Linear motor, linear motor system, and electronic-circuit-component mounting machine including the linear motor - A linear motor including permanent magnets fixed on an elongate yoke such that polarities of the permanent magnets alternately change, and an armature having cores and coils wound on the respective cores, wherein each row of the permanent magnets and the armature are moved relative to each other along a straight line by application of an electric current to the coils, each core extending in a first direction perpendicular to the permanent magnet row, the cores being arranged in a second direction perpendicular to the first direction and disposed on the cores such that the coils on the cores adjacent to each other are arranged in a zigzag pattern and spaced apart from each other in the first direction, with a gap left therebetween, wherein the armature includes a heat pipe having opposite end portions one of which is inserted in the gap and the other of which extends outwardly of the gap, and fins fixed to the other end portion of the heat pipe. | 07-22-2010 |
| 20100219702 | ELECTRIC MOTOR WITH SELF-COOLING - The moving parts of an electric motor are intended to be cooled more effectively and in a simple manner. For this purpose, the invention proposes an electric motor with a first motor part ( | 09-02-2010 |
| 20100066179 | COOLING DEVICE OF LINEAR MOTOR - A cooling device of a linear motor to cool a primary side of the linear motor including an iron core and a coil accommodated in slots of the iron core, including an elongate cover covering coil end portions exposed from both side faces of the iron core in a longitudinal direction, an air channel serving as blower for forcing a current of cooling air inside the cover, and a partition plate dividing the inside of the cover into upper and lower spaces. It is configured in such a manner that the upper space divided by the partition plate is used as a ventilation portion through which a current of cooling air is forced and the lower space is used as a cooling portion in which the coil end portions are accommodated and cooled. A slit is formed almost along a full length of the partition plate on a side closer to the iron core for bringing the ventilation portion and the cooling portion into communication with each other, and a vent is provided in a lower portion of the cooling portion. | 03-18-2010 |
| 20110025138 | Movable magnet type linear motor with heat-dissipating assembly - A movable magnet type linear motor with a mover heat-dissipating assembly includes a mover having a housing receiving therein a coil seat for holding a coil, openings being formed at two opposite ends of the housing, end covers being attached to the openings and having central holes so as to allow an inner stator to pass through the holes, wherein a plurality of heat dissipating channels are provided between the coil seat and the housing while the end covers have plural heat dissipating holes corresponding to the heat dissipating channels so that external cool air is allowed to enter the housing through the heat dissipating holes and the heat dissipating channels, thereby cooling the mover. | 02-03-2011 |
| 20110316358 | ARMATURE FOR LINEAR MOTOR - A linear motor armature in which pressure loss of a coolant flowing in a cooling conduit and possible significant non-uniformity in temperature distribution are reduced over the entire armature. A manifold | 12-29-2011 |
| 20110181130 | COOLANT-COOLED LINEAR MOTOR - In a coolant-cooled linear motor includes an armature including armature windings and a cooling jacket arranged to surround the armature windings, the cooling jacket unit includes four cooling jackets defining four side faces parallel to the extension direction of the armature and two end blocks defining two opposite end faces in the extension direction of the armature, the cooling jackets and the end blocks being connected to one another in a box shape. Each of the cooling jackets has an internal space to be supplied with a coolant; and a field magnet unit includes a yoke made of a ferromagnetic material and permanent magnets arranged in the yoke, one of the armature and the field magnet unit making relative movement with respect to the other. | 07-28-2011 |
| 20100060087 | DRIVE GUIDE APPARATUS - A drive guide device capable of effectively releasing heat produced by a mover. The drive guide device has a movement unit | 03-11-2010 |
| 20120139366 | POSITIONING SYSTEM - This invention relates to a positioning system for positioning a positioning unit along a longitudinal axis. The positioning system comprises a linear guide arrangement for enabling a linearly guided motion parallel to said axis, wherein the positioning unit is operatively connected to said guide arrangement. Furthermore, the positioning system comprises a motor, wherein the motor comprises a moving motor member operatively connected to said linear guide arrangement and an elongated stationary motor member extending parallel to said axis. The moving motor member is adapted to move along the stationary motor member for providing motion parallel to said axis. Moreover, the positioning system further comprises a force transmission arrangement which operatively connects said moving motor member to the positioning unit. The force transmission arrangement is arranged to provide an engagement between said positioning unit and said moving motor. The engagement is rigid in a direction parallel to said axis for instantaneous transmission of a linear force, and is resilient in directions other than said direction parallel to said axis, whereby transmission to the positioning unit of forces arising from thermal expansion of the motor is reduced or eliminated. | 06-07-2012 |
| 310120310 | Support for movable element (e.g., bearing) | 12 |
| 20100102645 | LINEAR DRIVE HAVING SHOCK COMPENSATION - A directly coupled linear drive having a drive unit and a sliding element that are disposed in a frame, the sliding element, actuated by the drive unit, being capable of effecting a movement in a direction of translation with respect to the frame and having a blocking device for blocking the sliding element in the frame in the event of a shock load to the sliding element, the blocking device having a body coupled to the sliding element that absorbs the shock load and is disposed such that the shock load of the body counteracts the shock load of the sliding element. | 04-29-2010 |
| 20090302693 | Linear Motor - A linear motor includes a stator having an armature winding and a mover having permanent magnets, the stator and the mover arranged to be movable relatively, the stator forming a magnetic circuit including ring-form cores, armature teeth and the armature winding in order to prevent a large load from acting on a support mechanism of the mover to cause various troubles due to distortion of a structure when one-directional magnetic attraction acts between an armature and the mover. Slit grooves are disposed in the armature teeth opposite to both front and back sides of the permanent magnets of the mover through gap and protruding members capable of being moved along the slit grooves of the armature teeth are disposed on the surface of the permanent magnets, so that the magnetic attraction is canceled and the rigidity of members made of the permanent magnets is enhanced. | 12-10-2009 |
| 20090206684 | MACHINE WITH DIRECT DRIVE - A machine includes a moving part and a direct drive for moving the moving part. The direct drive includes a stator and an armature unit which interacts with the stator. A coupling device couples the armature unit to the moving part to allow a movement of the moving part in relation to the armature unit. The direct drive further includes a spacer device to maintain a distance between an active region of the stator and an active region of the armature unit, thereby defining the air gap between the stator and the armature unit. | 08-20-2009 |
| 20090206683 | Linear Electric Motors - A linear electric motor comprises an electromagnetic piston and cylinder device comprising a plurality of stator coils disposed side by side around an axis and wound so as to create a radial magnetic field which alternates its polarity along the length of the axis, when energised, an armature located within the stator and moveable in a direction co-axial with the axis of the stator, and a bearing arrangement for supporting the armature for reciprocation with respect to the stator, characterised in that the bearing arrangement comprises non-magnetic material. | 08-20-2009 |
| 20090230785 | SLIDING SYSTEM WITH ONBOARD MOVING-COIL LINEAR MOTOR - A sliding system with onboard moving-coil linear motor is disclosed in which an armature assembly is a printed-circuit board, armature windings of flat configuration and coil stay having a stay and any number of cores made integral with the stay. The armature assembly is held by virtue of the stay at a preselected location inside an interval defined between field magnet arrays and, therefore, is small and compact in height in transverse section. A bed formed in an angled hook-like configuration in a transverse section contributes to shrinkage of the sliding system in either of height and width in transverse section or most compactness of the sliding system in transverse dimension. Moreover, the bed can be selected in length at discretion according to the purpose of usage to provide any desirable stroke length for a single table of a preselected length, getting the sliding system convenient for usage. | 09-17-2009 |
| 20100164306 | LINEAR MOTOR - A linear motor is provided with a stator, a slider disposed to be movable relatively with respect to the stator with a gap, and a non-magnetic plate mounted to either one of the stator and the slider so as to define the gap between the stator and the slider. | 07-01-2010 |
| 20110234021 | ELECTROMECHANICAL LINEAR ACTUATOR - An Electromechanical linear drive with a housing ( | 09-29-2011 |
| 20100133925 | Electrical Direct Linear Drive Device with a Stator Having Two Guide Rails for the Linear Guidance of a Driven Carriage - An electrical direct linear drive device, with a stator ( | 06-03-2010 |
| 20090218894 | LINEAR MOTOR - A compact linear motor is provided which is able to limit a rod, which linearly moves relatively to coils, from revolving. | 09-03-2009 |
| 20100038977 | Anti-deformation Mechanism for an Axial Rod Motor - An anti-deformation mechanism for an axial rod motor comprising a base, two vertical fixing seats, two axial fixing seats, two axial screws, a stator and a mover arranged on the stator. The two vertical fixing seats are arranged on the base to support the stator vertically. The two axial fixing seats are arranged on the base and located outside the two vertical fixing seats. Each of the two axial fixing seats is provided with a fixing through hole for insertion of the axial screw. The stator is an elongated cylindrical rod and provided with an axial screw hole at each of two ends thereof to be screwed with the axial screws. Both ends of the stator are fixed by the vertical fixing seats and the axial screws, and synchronously, the two axial screws apply pull forces to the stator to prevent the bending deformation of the stator. | 02-18-2010 |
| 20120200178 | LINEAR MOTOR ACTUATOR - Provided is a linear motor actuator capable of eliminating an influence to be exerted onto linear guides ( | 08-09-2012 |
| 20100289345 | LINEAR MOTOR COMPONENT MOUNTING APPARATUS AND COMPONENT INSPECTING APPARATUS - The invention relates to a linear motor equipped with a field element and an armature and adapted to produce a force causing the field element and the armature to be relatively displaced along a given axial direction by interaction of magnetic fluxes generated between the field element and the armature during an operation of supplying electric power to the armature. In one typical aspect of the invention, the linear motor is provided with: a stator which is formed as one of the field element and the armature; a mover which is formed as the other of the field element and the armature; a frame member which defines the axial direction; a rail which is adapted to guide the mover allowing only to reciprocate in a linear direction; a first positioning portion which is provided on the frame member to set a fixing position of the stator with respect to the frame member; and a second positioning portion which is provided on the frame member to set a fixing position of the rail with respect to the frame member in such a manner as to allow the mover to reciprocate along the axial direction with a given gap formed between the mover and the stator positioned by the first positioning portion. | 11-18-2010 |
| 310120320 | Connection to load | 1 |
| 20110133576 | ELECTROMAGNETIC ACTUATING APPARATUS - An electromagnetic actuating apparatus having an electromagnetic actuating unit which can be operated in order to exert an actuating force for an elongated plunger unit, wherein the actuating unit is provided in a housing along its actuating direction. The actuator unit forms an engagement surface which is planar in places and can be moved axially in the actuating direction, at an engagement end facing the plunger unit, an end surface of the plunger unit on the engagement side interacts detachably with the engagement surface, and the plunger unit is seated by magnetic attraction with its end surface on the engagement side on the engagement surface of the actuator unit, wherein the plunger unit is preferably designed to be soft-magnetic and furthermore preferably composed of soft iron, in the area of the end surface. | 06-09-2011 |
| 310120330 | Enclosure | 5 |
| 20090289509 | CYLINDRICAL LINEAR MOTOR ARMATURE, CYLINDRICAL LINEAR MOTOR FIELD POLE, AND CYLINDRICAL LINEAR MOTOR USING THEM - A cylindrical linear motor capable of solving the problem that a leak flux links an aluminum frame at both ends of an armature of a conventional cylindrical linear motor, which causes a viscous braking force as a motor brake force, is provided. The cylindrical linear motor armature | 11-26-2009 |
| 20100109449 | COVER FOR A SECONDARY PART OF A LINEAR MOTOR - The invention relates to a cover ( | 05-06-2010 |
| 20100171375 | Protected Magnetic Displacement Device - A protected magnetic displacement device comprises a mover, a stator, a first protecting sheet and a second protecting sheet. The mover is provided with a magnetically sensitive portion, and the stator is provided with two loading portions each having plural magnets. The two loading portions are oppositely located to form a space therebetween for insertion of the magnetically sensitive portion of the mover. The first protecting sheet is located on one of the loading portions, and the second protecting sheet is located on the other of the loading portions. The magnetically sensitive portion of the mover is isolated inside the space of the stator by the first protecting sheet and the second shied cover, so that the surrounding metal objects can be prevented from being attracted into the stator since the leakage of the electromagnetic interference is avoided, thus making the mover move along the stator stably. | 07-08-2010 |
| 20110198947 | Dust cover plate for linear motor - A dust cover plate for a linear motor is provided. The linear motor has a machine base mounted with a guideway set that carries a sliding block to slide therealong, a stator being settled at one side of the machine base, and a mover including a mover base connected to the sliding block and a block mover core facing the stator. Therein, an accommodating space exists between the mover base and the mover core for receiving the dust cover plate. The dust cover plate has one side fixed to the guideway and extending over the stator and the mover core to prevent external dust or particles from falling between the mover and the stator. | 08-18-2011 |
| 20130147286 | LINEAR ACTUATOR PROVIDED WITH DUST-PROOF MECHANISM - There is provided a linear actuator provided with a dust-proof mechanism capable of preventing dust-proof belts from being deformed, improving a sealing performance between the dust-proof belts and a housing member, and achieving high dust-proof performance irrespective of a size of the linear actuator. The linear actuator provided with the dust-proof mechanism includes: a housing member disposed so as to cover at least a ball screw; an opening portion formed in the housing member so as to extend along a moving locus of a movable stage; and dust-proof belts stretched inside the housing member so as to close the opening portion by being mounted to mounting members disposed both end portions of the housing member, wherein a bypass member for bypassing the dust-proof belts positioned at position overlapped with the movable stage is provided for the movable stage so as to realize movement of the movable member along the opening portion while closing and sealing the opening portion by the dust-proof belts, and in such a linear actuator provided with the dust-proof mechanism, the dust-proof belts are wound up around the mounting member and sandwiched between the mounting member and the end portions of the housing member. | 06-13-2013 |
