| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310088000 | Dirt, moisture or explosion proof | 20 |
| 20110193436 | ELECTRIC MOTOR - The invention provides an electric motor ( | 08-11-2011 |
| 20100001601 | SPINDLE MOTOR, CARRIAGE ASSEMBLY, AND RECORDING MEDIUM DRIVE - According to one embodiment, a spindle motor includes a cylindrical body, a rotor, and a stator. The cylindrical body defines a cylindrical space having the center axis on the rotational axis. The rotor includes an annular body that is connected to one end of the cylindrical body and defines an opening of the cylindrical space. The stator closes the opening while rotatably supporting the rotor. The clearance is formed between the stator and the annular body throughout the circumference of the annular body. The clearance becomes narrower in a direction away from the cylindrical space. | 01-07-2010 |
| 20130069462 | Electric Motor or Generator - An electric motor or generator having a stator with stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface that is parallel to an axis of rotation of the rotor and is axially separated from the stator teeth and the rotor has a second surface that is formed in substantially the same axial position as the stator s first surface, wherein material is mounted on the first surface or the second surface that has a lower frictional coefficient than the first surface or second surface. | 03-21-2013 |
| 20120032542 | WATER-PROOF DUST-PROOF AND SALTY-MIST-PROOF COOLING FAN - A water-proof dust-proof and salty-mist proof cooling fan, comprising: a fan frame, which is provided with a fixing round stage inside, and a fixing sleeve is disposed in a center of said fixing round stage; a ring-shaped U slot is provided in a bottom end surface of said round stage, such that a sealing circle is provided in said ring-shaped U slot; a water-proof cover body, fixedly connected to said fan frame through said sealing circle; and a fan-blade hub, where an inverse cone-shaped fixing table is provided protruding from a cavity center of said fan-blade hub, and said fixing table is connected to a main axis. Said round stage is a blind hole, with its open end provided at a bottom portion of said fan frame, such that said round stage, said sealing circle, and said cover body together form a tight-sealing enclosure. | 02-09-2012 |
| 20080309181 | Vehicular alternating current generator - A vehicular alternating current generator comprises slip rings, an enclosure, a rear cover, and a sealing plate. The slip rings are provided on a rotary shaft of a rotor. The enclosure component encloses a peripheral space surrounding the slip rings and brushes, and the rear cover covers electrical components including the brushes. The sealing plate, which is made of a material having elasticity, is attached to an end surface of the rear cover in a vertical direction and encloses a surrounding area of the enclosure component. | 12-18-2008 |
| 20100079021 | Housing Comprising An Air Flow Conduit Preventing All Liquid Accumulation - A liquid tightly sealed housing has an electrical or electronic device arranged in an internal volume of the housing, a channel with a globally vertical main axis, passing through an upper wall of the housing to connect the internal volume of the housing to outside, and closure apparatuses for making the channel liquid-tight and gas-permeable. The closure apparatuses are arranged at least partly on the upper wall of the housing and at an upper end of the channel so as to prevent any liquid accumulation in the channel. | 04-01-2010 |
| 20100090551 | Electric Motor Having Drainage Means - An electric motor comprises a stator, a rotor, and an interface plate. The interface plate is fixed to the stator and is configured to couple the electric motor to a pump. The interface plate comprises a shaft opening, a cavity, a ventilation passageway, a fluid discharge portion, a drainage passageway, and an upwardly extending surface. The rotor shaft extends horizontally through the shaft opening. The cavity is in communication with the shaft opening. The ventilation passageway extends upward from the cavity and is in communication with the cavity and with the ambient air. The drainage passageway is in communication with and extends downward from the cavity. The drainage passageway is configured to channel liquid downward from the cavity and to the fluid discharge portion. The upwardly extending surface is positioned where the upwardly extending surface will inhibit liquid from migrating from the fluid discharge portion to the stator. | 04-15-2010 |
| 20120104887 | AUTOMOTIVE DYNAMOELECTRIC MACHINE - A resin protective cover is prepared so as to have a cup shape that is constituted by a floor portion and a tubular peripheral wall portion, and that can be mounted to a rear bracket so as to cover a rectifying apparatus and a voltage regulator that are disposed axially outside the rear bracket. The protective cover includes an engaging hook that includes: a shank portion that is disposed so as to extend from an opening end of the peripheral wall portion; and a hook portion that is disposed so as to project radially outward from a tip end of the shank portion, and the protective cover is held on the rear bracket elastically in an engaged state by the engaging hook being inserted into an engaging aperture that is formed on a casing. | 05-03-2012 |
| 20100176673 | END SHIELD AND INNER BEARING CAP ASSEMBLY - An explosion proof motor including a stationary assembly and a rotatable assembly is described. The stationary assembly includes a stator that defines a stator bore. The rotatable assembly includes a rotor and a rotor shaft extending substantially axially through the stator bore. The explosion proof motor includes a frame configured to at least partially surround the stator. The frame defines an interior and an exterior of the motor. The explosion proof motor also includes at least one end shield positioned at an end of the frame and a bearing cap positioned proximate to the interior side of the end shield. The explosion proof motor also includes a flame path gap defined between the end shield and the bearing cap. The flame path gap includes at least one section that extends substantially parallel to the rotor shaft. | 07-15-2010 |
| 20100187926 | JACKETED AXIAL MAGNETIC BEARING - The invention relates to a jacketed axial magnetic bearing for a rotary machine having a rotor in contact with a gaseous atmosphere that is corrosive, acid, or carrying particles, the bearing comprising a rotor armature in the form of a disk secured to the rotor and placed in the gaseous atmosphere, and a stator magnetic circuit secured to a stationary support device and placed facing the rotor armature, the magnetic circuit of the stator comprising at least one coil and a ferromagnetic body placed in a metallic protective enclosure. The protective enclosure comprises firstly an annular support of channel section with a web and inner and outer flanges presenting a thickness of several millimeters and a length that is less than the length of the stator magnetic circuit, and secondly an annular jacket in the form of a channel-section cover machined from a solid piece and thus without welds, the jacket having inner and outer flanges and a closure web presenting a thickness smaller than the thicknesses of the inner and outer flanges, the free ends of the inner and outer flanges of the jacket being welded to the free ends of the inner and outer flanges of the annular support. | 07-29-2010 |
| 20090115273 | MOTOR AND HOUSING THEREOF - A motor includes a motor body and a housing for covering and accommodating the motor body. The housing includes a seat and a cover. The seat has at least one first connecting portion disposed at the circumference of the seat, and the cover has at least one second connecting portion disposed at the circumference of the cover and corresponding to the first connecting portion. The first and second connecting portions are connected by the relative movement of the seat and the cover, so that the seat and the cover can be combined tightly. | 05-07-2009 |
| 20110031831 | HOUSING ATTACHMENT FOR AN ELECTRICAL MACHINE TO INGRESS PROTECTION CLASS IP 24W - A housing attachment for an electric machine is constructed in compliance with protection class IP 23 and includes a first projected edge disposed at a first border wall such that water located in the middle section at the first border wall drips off no later than at the first projected edge and is led directly or indirectly to the first air inlet opening. Proximate to the first air inlet opening are first laminates which deflect incoming air flowing into the feed air channel to a second edge area. Proximate to the second air outlet opening are second laminates that impart to the flow direction of the outgoing air leaving the outlet air channel a component directed to the top of the electric machine. Third laminates are disposed in an end area of the outlet air channel to deflect the outlet air flowing in the outlet air channel away from the top of the electric machine. | 02-10-2011 |
| 20110031830 | ELECTRIC MOTOR FOR USE IN HAZARDOUS ENVIRONMENTS - An electric motor is provided that is configured for operation in hazardous or other hazardous environments. The electric motor includes a housing for a rotor and a stator. The housing includes a pair of end caps and a casing positioned therebetween. The end caps and the casing are held together using internal tie bars extending between and connected to the end caps. | 02-10-2011 |
| 20110001377 | CANNED OR SLEEVED ROTARY MACHINE AND METHOD OF MANUFACTURING IT - A canned or sleeved rotary machine is equipped with a rotor ( | 01-06-2011 |
| 20110248586 | IMPLEMENTATION OF A NON-METALLIC BARRIER IN AN ELECTRIC MOTOR - A motor for use in a volatile environment includes a rotor exposed to the volatile environment, electronics for rotating the rotor, an impervious ceramic barrier separating the electronics and the rotor, and a flexible seal for preventing the volatile environment from contacting the electronics and for minimizing vibratory and twisting loads upon the barrier to minimize damage to the barrier. | 10-13-2011 |
| 20110133585 | SECURITY IMPROVED SEALED ELECTRIC MACHINE - A security-improved sealed electric machine includes a casing ( | 06-09-2011 |
| 20110156515 | STRUCTURE OF WATER-PROOF MOTOR FOR ROTATING AXLE OF ROASTING STOVE - A structure of waterproof motor for an electric rotating axle of a roasting stove is disclosed, the motor can be installed on the roasting stove to allow rotation of the electric rotating axle for operating the roasting stove, the waterproof motor includes a housing composed of an upper cover and a lower lid, inside the housing there is a receiving space in which a fixing seat is provided on the lower lid; the fixing seat is provided thereon with a waterproof sleeve and a driving member which has a dynamic axle, the dynamic axle is extended through the waterproof sleeve to link with the electric rotating axle to rotate it; the structure is endued with an effect of avoiding invading of water vapor against the motor. | 06-30-2011 |
| 20120013212 | LIQUID DEFLECTING BAFFLE FOR AN ELECTRIC MOTOR - A fluid deflecting baffle is provided for use on an electric motor to be used in an environment where liquid may otherwise pass through a vent opening in an endshield of the motor. The baffle is secureable to the endshield and extends in a partial covering relationship with the vent opening. The baffle includes a vent passage therethrough and has at least one liquid flow obstructing louver that extends across the vent opening to deflect liquid away from the vent passage while allowing venting air to flow through the vent passage. The louver includes a generally flat liquid deflection surface that is disposed at an oblique angle relative to the axis of the motor and at least partially faces a venting direction of incoming air and fluid. | 01-19-2012 |
| 20120025646 | Cooling Tower Motor Having Improved Moisture Protection - An electrical motor has been developed having an epoxy, which encapsulates a stator winding to protect the stator winding from the humid and damp atmosphere associated with a cooling tower. The electrical motor includes a stator core, a stator winding configured about the stator core, and an epoxy encapsulating at least an end portion of the stator winding, the epoxy enabling the stator winding to be isolated from an atmosphere surrounding a fan within in a cooling tower operated by the electrical motor in which the stator core and the stator winding are positioned. | 02-02-2012 |
| 20120313469 | WATERPROOF AND SALT SPRAY-RESISTANT FAN MOTOR STRUCTURE - A waterproof and salt spray-resistant fan motor structure includes a base, a stator assembly, a case, and at least one circuit board. The base has a bearing cup vertically projected from one side thereof. The stator assembly is externally fitted around the bearing cup, and includes a plurality of silicon steel plates having windings mounted thereon. The case is arranged between the base and the stator assembly and internally defines a closed space, and the circuit board is located in the closed space. With these arrangements, the case protects the circuit board against corrosion by water and salt spray, enabling a fan to have largely extended service life. | 12-13-2012 |
