Split stator and manufacturing method therefor

A manufacturing method and stator technology, applied in the manufacture of motor generators, stator/rotor body, magnetic circuit shape/style/structure, etc., can solve split stator core and coil short circuit, insulator cracks, insulator insulation reduction, etc. problem, achieve the effect of improving insulation reliability, preventing deformation, and eliminating sliding

Inactive Publication Date: 2012-05-09
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this split stator, the insulator may crack and deform due to thermal expansion and contraction in the use environment due to the difference in the linear expansion rate of the insulator and the split stator core.
In addition, if the insulator is cracked or deformed, the insulation performance of the insulator will be reduced, and a short circuit may occur between the split stator core and the coil.

Method used

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  • Split stator and manufacturing method therefor
  • Split stator and manufacturing method therefor
  • Split stator and manufacturing method therefor

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Experimental program
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Effect test

no. 1 approach

[0065] First, the first embodiment will be described. Here, refer to Figure 1 ~ Figure 6 The split stator of the first embodiment will be briefly described. figure 1 It is a perspective view showing the schematic configuration of the split stator according to the first embodiment. figure 2 It is a perspective view showing the schematic configuration of a split stator core. image 3 It is an enlarged cross-sectional view showing the split stator core near the bottomed hole. Figure 4 It is a perspective view showing a schematic configuration of an insulator formed in a split stator core. Figure 5 It is a perspective view of a split stator molded in resin. Image 6 It is a perspective view showing a ring-shaped stator constructed by combining split stators.

[0066] Such as figure 1 As shown, the split stator 10 includes a split stator core 20, an insulator 60, and a flat-wound coil 70. In addition, the insulator 60 is resin-molded (integrally molded) on the split stator core 20,...

no. 2 approach

[0099] Next, the second embodiment will be described. In the second embodiment, as a non-slip mechanism, a recess formed by pit processing is provided on the coil end surface instead of the bottomed hole 26 in the first embodiment. Therefore, the structure and manufacturing method of the split stator are slightly different from those of the first embodiment. Therefore, the following description will focus on the differences from the first embodiment. In addition, with regard to the configuration common to the first embodiment, the same reference numerals are attached to the drawings, and the description thereof is appropriately omitted.

[0100] First, refer to Figure 14 with Figure 15 The split stator according to the second embodiment will be described. Figure 14 It is a cross-sectional view showing a part of the split stator according to the second embodiment, and is an enlarged cross-sectional view showing the vicinity of the recess provided on the coil end surface. Figu...

no. 3 approach

[0115] Next, the third embodiment will be described. In the third embodiment, as a non-slip mechanism, an adhesive layer is provided on the coil end surface instead of the bottomed hole 26 in the first embodiment. Therefore, the structure and manufacturing method of the split stator are slightly different from those of the first embodiment. Therefore, the following description will focus on the differences from the first embodiment. In addition, in the drawings, the same reference numerals are given to the common configurations with the first embodiment, and the description thereof is appropriately omitted.

[0116] First, refer to Figure 18 The split stator according to the third embodiment will be described. Figure 18 It is a cross-sectional view showing the split stator according to the third embodiment, and is an enlarged cross-sectional view showing the vicinity of the coil end surface enlarged.

[0117] Such as Figure 18 As shown, in the split stator according to the thi...

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Abstract

Disclosed are a split stator and a manufacturing method therefor with which insulation reliability can be improved by preventing the occurrence of deformation or cracking in the insulator by eliminating slippage of the insulator at the coil end face. A slippage preventing mechanism that prevents slippage of the insulator is provided at the coil end face, and using insert molding, the insulator is integrally molded to a split stator core provided with the slippage preventing mechanism.

Description

Technical field [0001] The present invention relates to a split stator of a motor and a generator and a manufacturing method thereof. In more detail, it relates to a split stator integrally formed with an insulator and a manufacturing method thereof. Background technique [0002] As the stator of electric motors and generators used in electric vehicles, hybrid vehicles, etc., there is a split stator core formed by laminating electromagnetic steel sheets split into pole teeth (tooth) units, and the split stator core and Split stator insulator (insulating resin) integrally molded. In this type of split stator, due to the difference in the linear expansion rate of the insulator and the split stator core, the insulator may be cracked and deformed due to thermal expansion and contraction under the use environment. In addition, if the insulator is cracked or deformed, the insulation of the insulator will decrease, and a short circuit may occur between the split stator core and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/18H02K15/02
CPCH02K1/148H02K15/12H02K3/522H02K2203/12H02K3/345Y10T29/49009
Inventor 上野泰弘吉村常治中西浩二
Owner TOYOTA JIDOSHA KK
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