Entries |
Document | Title | Date |
20090015083 | Shaft grounding thread structure of an electric motor - Thread structure for the shaft grounding of an electric motor having a thin thread formed on the surface of the slip ring or the shaft to replace the conventional face contact with the “linear contact” between the surface of the carbon brush and the thread head. During the rotation, the development of friction heat and the oxidation film will be substantially eliminated. Furthermore, the effect of spiral conveyor belt is created when the thread rotates. This can remove the toner, copper powder, etc. produced by friction acting on the surface of the carbon brush and keep a permanent cleanness of the surface of the carbon brush. In this way, a stable contact resistance between the shaft (or the slip ring) and the carbon brush can be maintained and a long-term test shows that the wear of the carbon brush will be further reduced before improvement. | 01-15-2009 |
20090085418 | GENERATOR FOR VEHICLE - A generator has a rotor boss engaged with a crankshaft with a rotor core engaged with the outer circumference of the rotor boss. A stator core is provided around the outer circumference of the rotor core with a bus ring opposed to one end surface of the rotor core. The outer circumference of the bus ring is engaged with a plurality of insulating components surrounding the teeth. The stator core has a split structure composed of a plurality of stator core blocks connected together. Each stator core block is fixed to a generator cover by a bolt. The generator cover is fixed to the outer surface of a crankcase. The rotor core is formed with a plurality of holes for respectively supporting a plurality of rotor magnets. The bus ring includes a plurality of terminals and grommets connected through bus bars to the terminals. | 04-02-2009 |
20090127947 | SPINDLE MOTOR - Provided is a spindle motor on which an optical disc is put, rotated and operated. The spindle motor includes a rotor, a stator, a stop washer, and a cap. The cap is put on a thrust supporter that supports a rotation shaft of the rotor, and the cap is pressed into a bearing housing and is closely attached to the bearing housing so that the cap can be easily, closely attached to the bearing housing and due to a press fit force, the cap can be coupled to the bearing housing without formation of a gap between the bearing and the bearing housing and leakage of oil can be prevented, and a press fit force of the bearing and a press fit force of the cap itself act on the cap so that the cap can be prevented from upward separation from the bearing housing. In addition, a first stepped part is formed at a portion of a surface in which the bearing housing and the cap are closely adhered to each other, and a second stepped part is formed on the upper side of the first stepped part of the bearing housing so that, due to the first and second stepped parts, the cap can be prevented from downward separation from the bearing housing when a rotation shaft escapes from the stator downwards, and when the cap is pressed into the bearing housing, the cap does not contact an inner diameter of the bearing housing in which any stepped part is not formed so that a change of an inner diameter can be inhibited and damage of the inner diameter of the bearing housing can be presented. | 05-21-2009 |
20090267429 | Spindle Having a Data Acquisition Element which can be Read by a Radio - The invention relates to a spindle for a machine tool, in particular a motor spindle having a housing ( | 10-29-2009 |
20090284088 | OPTIMIZED STATOR MOUNTING METHOD TO PRINTED CIRCUIT BOARD - A stator assembly detachably mounted with a fan housing. The stator assembly includes a stator including one or more first mounting feet and one or more second mounting feet disposed apart from each other. Additionally, the stator assembly includes a printed circuit board (PCB) having one or more first openings and a fan housing having a base member fixed to a bearing liner. The base member includes one or more second openings disposed about the bearing liner. The stator is coupled to the PCB into a stator-PCB assembly with each of the one or more first mounting feet being locked with one of the one or more first openings. The stator-PCB assembly is center-aligned with respect to the bearing liner and coupled to the fan housing with each of the one or more second mounting feet locked with one of the one or more second openings. | 11-19-2009 |
20100079017 | ACCELEROMETER INCLUDING DIAPHRAGM AND POWER GENERATOR AND MOTOR INCLUDING SAME - An accelerometer includes a pressure transducer; and a vibration-to-pressure converter (VPC). The VPC may include a housing mechanically coupled to an object to be measured, and a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer. A power generator and motor including the accelerometer are also presented. | 04-01-2010 |
20100201211 | ELECTRIC MOTOR AND SERIES OF ELECTRIC MOTORS - An electric motor and modular system of electric motors includes at least a stator, rotor, and a housing, the modular system including several variants of electric motors, e.g., within one size, the housing having a mechanical interface that is arranged for connection to a bearing support, the bearing support including at least a bearing seat for the B-side bearing of the rotor shaft, at least two different bearing supports being alternatively connectible to the housing, a first bearing support including an additional interface for connection to a bottom part of a terminal box, or alternatively to a bottom part for power electronics, and the first bearing support forming a housing for a brake and/or a fan, a second bearing support being constructed in one piece with a bottom part of a terminal box. | 08-12-2010 |
20100264763 | FLUID DYNAMIC BEARING SYSTEM AND A SPINDLE MOTOR HAVING A BEARING SYSTEM OF THIS KIND - The invention relates to a fluid dynamic bearing having a bearing bush having a central bearing bore in which a shaft is rotatably supported. Surfaces facing each other of the shaft and of the bearing bore are separated from one another by a bearing gap filled with a bearing fluid. A first radial bearing section and a second radial bearing section are disposed along the bearing gap between which a separator section is disposed. The width of the bearing gap varies with its axial length. The bearing gap has a first inner width ib | 10-21-2010 |
20100283338 | OIL FILTER BYPASS VALVE ASSEMBLY FOR A GENERATOR - A bypass valve assembly for a generator includes a spring cover with a flange which extends in a radial direction from a spring cover body. The spring cover body defines an overall length dimension, the overall length dimension to an end of the spring cover body to the flange dimension defines a ratio between 1.6:1-1.2:1. The bypass valve assembly also includes a valve sleeve with a multiple of windows. Each of the multiple of windows includes a longitudinal edge which defines a longitudinal edge radius and corner radius. | 11-11-2010 |
20110006624 | DEVICE AND METHOD FOR GENERATING FORCE AND/OR MOVEMENT - The invention relates to a device and a method for generating a force and/or a movement. The force and/or the movement are generated or the energy of the force and/or the movement is stored by utilizing a magnetic field. The magnetic field is generated with a charge current circuit ( | 01-13-2011 |
20110101805 | ELECTRICAL POWER SYSTEM, METHOD AND ASSEMBLY HAVING NONCONDUCTIVE SUPPORT BAR - A method, system and assembly for transferring electrical power adapted to provide power to a grounded aircraft is provided. The assembly comprises a first and second insulated electrical conductor and a plug body, attached to ends of these conductors. A first contact and a second contact is provided within the plug body, having electrically conductive connections with the first and second conductors. A non conductive support bar disposed at least partially within the plug body separating at least portions of the first contact and the first conductor from the second contact and the second conductor. | 05-05-2011 |
20110169356 | Modularized Elongation Ring For Air Outlet In Self-Ventilated Traction Motor - An elongation ring adapted for use in a self-ventilated traction motor and for fixed placement between the non-driving end of the motor housing and a motor end shield. The ring has radial air outlet openings placed along its circumference and is adapted to enclose a fan wheel fixed on a motor driving shaft. A traction motor having such an elongation ring is also contemplated. The elongation ring provides a possibility to easily adapt a motor housing to different motor types such as a self-ventilated motor with the ring, or one with forced ventilation without the ring. | 07-14-2011 |
20110316370 | SUBSTRATE PROCESSING APPARATUS WITH MOTORS INTEGRAL TO CHAMBER WALLS - In accordance to an aspect of the disclosed embodiments, a substrate transport apparatus is provided. The substrate transport apparatus includes a frame defining a chamber, at least one stator module embedded at least partly into a peripheral wall of the chamber, the at least one stator module defining an axis of rotation. The substrate transport apparatus further includes at least one rotor substantially concentrically disposed relative to the at least one stator module about the axis of rotation, the at least one rotor being configured to interface with the at least one stator module and being suspended by a respective one of the at least one stator module substantially without contact within the chamber. The substrate transport apparatus further includes at least one substrate transport arm connected to the at least one rotor and having at least one end effector configured to hold at least one substrate. | 12-29-2011 |
20120007455 | MOTOR ROTOR AND COMPRESSOR PROVIDED WITH THE SAME - There is provided a compressor provided with a motor rotor capable of suppressing a decrease in oil separation efficiency and avoiding a decrease in motor efficiency. A motor rotor ( | 01-12-2012 |
20120217827 | ELECTROMECHANICAL DEVICE, MOVABLE BODY, AND ROBOT - An electromechanical device includes at least one magnetic coil formed of an electric wire coated with a first insulating material wound a plurality of times to have a ring-like shape, and an insulating section made of a second insulating material and disposed so as to cover at least apart of the magnetic coil, and a withstand voltage between an outside of the insulating section and the magnetic coil across the insulating section is higher than a withstand voltage between the electric wires adjacent to each other in the magnetic coil. | 08-30-2012 |
20120293025 | ELECTRIC MOTOR WITH ADD-ON UNIT, AS WELL AS A METHOD FOR CONNECTING AN ELECTRIC MOTOR AND AN ADD-ON UNIT - An electric motor with an add-on unit, such as a gearbox unit, encoder unit or controller unit, and disclosed whereby the electric motor and add-on unit can be firmly connected to each other. For a firm connection, a shrink ring is thermally shrunk on to the electric motor and add-on unit in the area of the joint so that the shrink ring covers the joint. A method is also disclosed for producing the connection, wherein a temperature difference is first created between the shrink ring on the one hand and the electric motor as well as add-on unit on the other hand, whereby furthermore the temperature of the shrink ring is greater than the temperature of the electric motor and add-on unit and whereby the components are then joined together and held so that the shrink ring shrinks on to the electric motor and add-on unit. | 11-22-2012 |
20130026869 | EPS Motor - Disclosed is an EPS motor, the EPS motor including a motor housing mounted with a stator and a rotor, a rotation shaft centrally mounted at the motor housing to rotatably support the rotor, a bearing including an outer race centrally fixed at the motor housing and an inner race having a pivot hole rotatably fixing the rotation shaft, and a shaft fixing unit formed by plastically deforming a distal end of the rotation shaft having passed the pivot hole. | 01-31-2013 |
20130106213 | SPINDLE MOTOR AND METHOD OF MANUFACTURING THE SAME | 05-02-2013 |
20130119797 | SPINDLE MOTOR - Disclosed herein is a spindle motor in which a space part is formed between a shaft and a rotor case and a hooker part and a fixing part coupled to each other are formed at a bearing holder and a rotor case, respectively, thereby making it possible to easily prevent floating of a rotor without using a separate component. | 05-16-2013 |
20130285490 | DYNAMIC CENTER OF MASS - Systems and methods involving reconfigurable rotating masses are disclosed. One embodiment may take the form of a system having a motor and coupled weights attached to the motor. Operation of the motor rotates the coupled weights and the weights are dynamically reconfigurable to change the location of the center of mass relative to an axis of rotation. | 10-31-2013 |
20140368068 | DEVICE FOR GUIDING A SET OF ELECTRICAL WIRES FOR ELECTRIC MOTOR ROTOR - A guiding device for coiling electrically conducting wires around an electrically conducting block of a rotor of an electric motor including a shaft extending axially in the rotor, the electrically conducting block including at least four notches for receiving wires. The guiding device includes at least two branches extending radially away from the shaft and disposed at 90° to one another, the branches being connected by an elastic linking mechanism. | 12-18-2014 |
20150035394 | Rotor for a Rotating Electric Machine and Rotating Electric Machine - A rotor for a rotating electric machine includes a rotor sheet stack arranged on a rotor shaft, and at least one metallic functional component made of a material comprising iron and also chromium in a proportion of at least 18% and at most 19% by weight and optionally nickel in a proportion of at least 12% and not more than 13% by weight. | 02-05-2015 |
20160049842 | ELECTRIC MACHINE, MOISTURE GUIDE AND ASSOCIATED METHOD - According to an embodiment of the invention, an electric machine for use in an environment having moisture is provided. The machine includes a housing that has an inner surface defining a cavity in the housing. The housing defines a leak path exit adapted to remove moisture accumulating within the housing away from the housing. The electric machine further includes a stator secured to the housing and a rotor that is rotatably secured to the housing, The electric machine further includes a moisture guide positioned at least partially within the cavity and adapted to guide at least some of the moisture toward the leak path exit. | 02-18-2016 |