| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310227000 | With cooling | 14 |
| 20090189478 | Vehicle alternator provided with brushes and slip rings - An alternator for vehicles, the alternator being provided with a rotary shaft, comprising slip rings fixed to a rotary shaft to be rotated with the rotary shaft, brushes being placed to be in slide contact with the slip rings a brush holder that accommodates the brushes to be held therein; connection terminals fixed to the brush holder, brush leads electrically connecting the brushes to the connection terminals respectively, and a slip ring cover that covers the slip rings in cooperation with the brush holder, wherein the brush holder comprises first chambers in which the bushes are fixedly accommodated second chambers in which the brush leads are accommodated, the second combers communicating with the first chambers, and first air holes formed to open outside of the housing and formed as inlet/exhaust passages communicating with the second chambers. | 07-30-2009 |
| 20100277032 | ELECTRIC MACHINE - An electric machine comprises: a casing ( | 11-04-2010 |
| 20110001387 | Carbon Brush Holder with Improved Air Vents - A carbon brush holder with improved air vents includes a body, a housing, and an exhaust lid, which are provided with corresponding fixing structures for their convenient assembly or disassembly. The exhaust lid is formed with a diverging air channel. By the exquisite configurations of the fixing structures provided on its components, the carbon brush holder is easy to assemble and disassemble so as to facilitate replacement or repair of parts settled in the carbon brush holder. Besides, since the exhaust lid in the present invention has the diverging air channel opened at two sides thereof as the air vents, it significantly improves the efficiency in dust expelling and heat dissipating, thereby effectively preventing the air vent from blocked and preventing overheat caused by poor exhaust. | 01-06-2011 |
| 20110198965 | SLIP RING ASSEMBLY WITH COOLING - The present invention relates to a slip ring assembly for providing electricity to or from a rotor rotating in relation to a stator in a generator or an electrical motor. The slip ring unit rotates around a centre axis and has at least one first slip ring with an outer surface, a diameter, and a width. Also, the assembly comprises at least one conductive means, such as a brush, having conductive contact with the surface of the slip ring, and a housing in which the slip ring unit and the conductive means are situated. Furthermore, the assembly has a suction means in connection with the housing for suction of gas from within the housing out through a suction outlet in the housing. In addition, the housing has a suction inlet which is connected with a guiding means. The guiding means has an aperture facing the slip ring surface, and the aperture is positioned at a predetermined distance from the surface of the slip ring so that the gas is able to cool the surface of the slip ring. Also, the invention relates to a generator and a wind turbine having such a slip ring assembly. | 08-18-2011 |
| 20110248599 | ELECTRICAL MACHINE - Electrical machine, in particular AC generator, having a stator ( | 10-13-2011 |
| 20120098383 | Electric Machine Having a Brush-Slip Ring Device - The invention relates to an electric machine, comprising
| 04-26-2012 |
| 20120153770 | Method and Structure for Cooling an Electric Motor - A high speed electric motor for use in a variety of applications. The electric motor an electric motor including a motor housing or stator, a rotor having a commutator and brushes for contacting the commutator at a predefined area known as the contact area. Additionally, the motor includes a forced air cooling assembly. The forced air cooling assembly includes a centrifugal fan for creating air flow, a manifold for accelerating the air flow. The manifold having exit ports and the exit ports being positioned directly over the contact area for directing the accelerated air flow at the contact area and the motor housing having at least one opening aligned with the contact area and at least a second opening defining an exit vent. Additionally, a method of cooling the motor in accordance with the invention is also disclosed. | 06-21-2012 |
| 20120200194 | SLIP-RING ARRANGEMENT FOR A ROTATING ELECTRICAL MACHINE - A slip-ring arrangement of a rotating electrical machine includes a plurality of slip-rings disposed concentrically about an axis of the electrical machine one behind the other in an axial direction, the plurality of slip-rings configured to be self-supporting. | 08-09-2012 |
| 20120267980 | COOLING SYSTEM FOR THE BUSHINGS OF AN ELECTRIC GENERATOR AND METHOD FOR COOLING THE BUSHINGS OF AN ELECTRIC GENERATOR - A cooling system for bushings of an electric generator, which includes a casing housing a stator and a rotor connected to a rotor shaft activating at least a fan defining at least a high pressure zone and a low pressure zone. The generator has a plurality of phases electrically connected to hollow phase rings that are electrically connected to bushings supported by the casing and having cooling circuits to let a cooling medium pass through them to cool them. The outlets of the bushing cooling circuits are housed in the high pressure zone and are connected to inlets of the hollow phase rings. A method for cooling the bushings of an electric generator is also provided. | 10-25-2012 |
| 20140001915 | ELECTRIC ROTATING MACHINE | 01-02-2014 |
| 20140021824 | Plastic Brush Guide - The present invention in one embodiment is an engine cooling fan module including a motor having a horizontally extending motor shaft, at least one plastic brush guide defining a guide axis aligned with the motor shaft, the at least one plastic brush guide including a first side wall portion extending along the guide axis, a second side wall portion generally opposite the first side wall portion, and a top portion extending between the first side wall portion and the second side wall portion, the second side wall portion defining a radial slot opened at an inner portion of the plastic brush guide, a brush slidingly positioned within the plastic brush guide, and a shunt electrically coupled to the brush and extending through the radial slot. | 01-23-2014 |
| 20140035431 | ROTATING ELECTRICAL MACHINE - To obtain a rotating electrical machine preventing a functional failure and shortening of the life of brushes caused by a temperature rise of the brushes installed to a vehicle AC power generator or a motor generator. A brush holder holding brushes supplying a field current to a rotor is provided with brush temperature suppressing metal members installed substantially parallel to the brushes in the vicinity of abutment portions of the brushes and slip rings in point-, line-, or surface-contact with the brushes at least at one point besides energization terminals. The brush temperature suppressing metal members not only diffuse heat generated at the brushes, but also function as a heat capacity for a case where a large amount of heat is generated in a short time, such as during regenerative power generation and a start-up operation, and thereby prevent an excessive temperature rise of the brushes. | 02-06-2014 |
| 20140042867 | Method and Structure for Cooling an Electric Motor - A high speed electric motor for use in a variety of applications. The electric motor an electric motor including a motor housing or stator, a rotor having a commutator and brushes for contacting the commutator at a predefined area known as the contact area. Additionally, the motor includes a forced air cooling assembly. The forced air cooling assembly includes a centrifugal fan for creating air flow, a manifold for accelerating the air flow. The manifold having exit ports and the exit ports being positioned directly over the contact area for directing the accelerated air flow at the contact area and the motor housing having at least one opening aligned with the contact area and at least a second opening defining an exit vent. Additionally, a method of cooling the motor in accordance with the invention is also disclosed. | 02-13-2014 |
| 20150028719 | SLIP RING SYSTEM - In a slip ring system ( | 01-29-2015 |
