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Stator for electric rotating machine

A technology for rotating electrical machines and stators, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., and can solve problems such as thermosetting resin curing

Active Publication Date: 2015-09-09
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, since the thermosetting resin is initially in a liquid state, it may be difficult to impregnate and retain the thermosetting resin at a predetermined portion of the stator coil.
Therefore, it may be difficult to cure the thermosetting resin at a predetermined portion

Method used

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  • Stator for electric rotating machine
  • Stator for electric rotating machine
  • Stator for electric rotating machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0031] figure 1 The overall configuration of the rotary electric machine 1 including the stator 20 according to the first embodiment is shown.

[0032] In the present embodiment, the rotary electric machine 1 is configured as an electric motor used in a motor vehicle.

[0033] Such as figure 1 As shown in , the rotating electric machine 1 includes a casing 10 , a rotating shaft 13 and an annular rotor 14 in addition to a stator 20 . The housing 10 includes a pair of cup-shaped housing members 10a and 10b, wherein the cup-shaped housing members 10a and 10b are joined together at their open ends. The casing 10 has a pair of bearings 11 and 12 installed therein, and the rotary shaft 13 is rotatably supported by the casing 10 via the pair of bearings 11 and 12 . The rotor 14 is housed in the housing 10 and fixed coaxially on the rotary shaft 13 . The stator 20 is fixed in the housing 10 so as to surround the radially outer circumference of the rotor 14 .

[0034] The rotor 14...

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PUM

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Abstract

A stator for an electric rotating machine includes an annular stator core, an outer cylinder fitted on a radially outer surface of the stator core, and a stator coil mounted on the stator core. The stator core is comprised of a plurality of stator core segments that are arranged in a circumferential direction of the stator core so as to adjoin one another in the circumferential direction. The stator coil is fixed to the stator core by a thermosetting resin that is set by induction-heating the stator core. Each of the stator core segments is formed by laminating, in an axial direction of the stator core, at least two types of steel sheets having different thicknesses.

Description

technical field [0001] The invention relates to stators for rotating electric machines used as electric motors and generators, for example in motor vehicles. Background technique [0002] Conventionally, a rotary electric machine used as a motor and a generator in a motor vehicle includes a rotor and a stator arranged diametrically opposite to the rotor. The stator includes an annular (or hollow cylindrical) stator core and stator coils. The stator core has a plurality of slots arranged in the circumferential direction of the stator core. The stator coils are mounted on the stator core to be accommodated in the slots of the stator core. Furthermore, in order to reduce iron loss, a stator core is generally formed by laminating a plurality of steel sheets in its axial direction. [0003] Patent Document 1 (ie, Japanese Patent Application Publication No. JP2010288424A) discloses an annular stator core including a plurality of stator core segments arranged in the circumferent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K15/12
CPCH02K3/30H02K3/32H02K1/16H02K1/02H02K15/12
Inventor 久户濑裕一梅田敦司
Owner DENSO CORP