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Stator for rotary electric machine

A technology for rotating electrical machines and stators, applied in electromechanical devices, electrical components, electrical components, etc., can solve the problems of deterioration of cooling performance and the need for productivity, and achieve the effects of improving cooling performance, increasing productivity, and reducing wall thickness

Inactive Publication Date: 2019-08-06
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to shrink-fit the stator core 201 to the stator frame 202b, special equipment is required and the productivity is poor
In addition, when press-fitting the outer peripheral surface of the stator core 201 into contact with the inner peripheral surface of the stator bracket 202b, the thickness of the stator bracket 202b needs to be set thick so as to withstand the pressure of the stator core 201. into, the cooling performance may deteriorate

Method used

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  • Stator for rotary electric machine
  • Stator for rotary electric machine
  • Stator for rotary electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, a stator of a rotating electrical machine according to an embodiment of the present invention will be described with reference to the drawings. Such as figure 1 As shown, the stator 10 of the rotating electric machine of the present embodiment includes: an annular stator core 11; a coil 12 mounted on the stator core 11; a housing 14 for accommodating the stator core 11 and the coil 12; and a As for the seal portions 16 , they seal the space formed between the stator core 11 and the case 14 .

[0035] The casing 14 is a cylindrical member with a bottom, and includes: a cylindrical portion 14a; an outward flange portion 14b extending radially outward from one end portion of the cylindrical portion 14a; and a bottom portion 14c. It extends radially inward from the other end side end of the cylindrical portion 14a.

[0036] The stator core 11 is formed by stacking a plurality of annular steel plates 21 in the axial direction, and the outer peripheral surface...

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PUM

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Abstract

Provided is a stator for a rotary electric machine, which has excellent productivity and high cooling performance. A stator (10) for a rotating electrical machine is provided with: a stator core (11);and a housing (14) that accommodates the stator core (11). The stator core (11) is covered with a covering part (18), and the outer peripheral surface (11a) of the covering part (18) has watertightness. A pair of sealing portions (16) is provided between the cover portion (18) and the inner peripheral surface (19) of the housing (14) at both axial end sides. A water jacket (WJ) is formed by the cover part (18), the inner peripheral surface (19) of the housing (14), and the pair of sealing parts (16).

Description

technical field [0001] The invention relates to a stator for a rotating electrical machine. Background technique [0002] The stator of the rotating electric machine is constituted by winding a coil around a stator core. When the rotating electric machine is running, the temperature of the stator rises, so it is usually cooled by refrigerant. Such as Figure 4 As shown, in the water-cooled rotating electrical machine 100 , the stator case 102 having the water jacket WJ is provided on the outer peripheral side of the stator core 101 , and a refrigerant such as cooling water is passed through the water jacket WJ for cooling. Conventionally, the water jacket WJ of the stator case 102 has been produced by casting using a core (for example, Patent Document 1). However, according to this manufacturing method, labor and time are required, which has problems in terms of productivity and cost. [0003] Therefore, a proposal has been made to form the water jacket by dividing the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/20H02K9/19
CPCH02K1/20H02K5/203H02K1/185H02K9/193
Inventor 中村彻
Owner HONDA MOTOR CO LTD