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Rotating electrical machine provided with electrical insulator between heat sink and bearing

A technology for rotating electrical machines and electrical insulators, which is applied in the direction of casings/covers/supports, electromechanical devices, electrical components, etc., and can solve problems such as control, improve cooling performance, and reduce axial dimensions.

Active Publication Date: 2019-08-23
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In some configurations there may be issues controlling the electrical ground potential of the control electronics and stator

Method used

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  • Rotating electrical machine provided with electrical insulator between heat sink and bearing
  • Rotating electrical machine provided with electrical insulator between heat sink and bearing
  • Rotating electrical machine provided with electrical insulator between heat sink and bearing

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Embodiment Construction

[0032] Identical, similar or analogous elements retain the same reference numerals in the various figures. In the following description, considering the front-to-back orientation, the figure 2 Middle is left-to-right orientation. Thus, a "front" element refers to an element located on the side of the ribbed end 73 of the shaft of the motor, while a "rear" element refers to an element located on the opposite side, ie on the side of the electrical control module 40 .

[0033] figure 1 and figure 2 A rotating electrical machine 10 is shown comprising a multiphase stator 11 surrounding a rotor 12 fitted on a shaft 13 whose axis X corresponds to the axis of the machine. The stator 11 surrounds the rotor 12 with an air gap between the inner circumference of the stator 11 and the outer circumference of the rotor 12 . The stator 11 is fitted in a housing 15 provided with a front support 16 and a rear support 17 .

[0034] The motor 10 is designed to be coupled to figure 2 The...

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PUM

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Abstract

The invention mainly relates to a rotating electrical machine (10), in particular for a motor vehicle, comprising: an electrical control module (40) for controlling the rotating electrical machine, aheat sink (44) associated with the electrical control module (40), a bearing (17) arranged to support a rolling bearing rotatably supporting a shaft of the rotating electrical machine, characterised in that the rotating electrical machine comprises an electrical insulator (101) interposed between the bearing (17) and the heat sink (44), the electrical insulator (101) being arranged to electricallyinsulate the heat sink (44) with respect to the bearing (17).

Description

technical field [0001] The invention relates to a rotating electrical machine with an electrical insulator arranged between a heat sink and a support. The invention has a particularly advantageous, but not exclusive application, with high power reversible electric machines coupled to elements such as gearbox reducers, which can be operated in alternator mode as well as motor mode. Background technique [0002] In known manner, a rotating electric machine comprises a stator and a rotor integral with a shaft. The stator is fitted in a housing configured to rotate the shaft on supports via roller bearings. [0003] The rotor comprises a body formed by a stack of metal sheets held in groups by means of suitable fixing systems. The rotor comprises poles formed, for example, by permanent magnets housed in cavities provided in magnetic blocks of the rotor. Alternatively, in a so-called "protruding" pole configuration, the poles are formed by coils wound on rotor arms. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20H02K11/05H02K9/193H02K11/04
CPCH02K9/193H02K11/05H02K5/203
Inventor O.劳伊斯J-C.拉布罗斯C.莱迪乌
Owner VALEO EQUIP ELECTRIC MOTEUR