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Insulation paper, insulation paper insertion device and stator

A technology for inserting devices and insulating paper, which is applied in the direction of electromechanical devices, laying solid insulation, and shape/style/structure of winding insulation, which can solve problems such as increased cost and unstable adhesion of adhesives

Active Publication Date: 2020-05-22
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degree of adhesion of the adhesive tends to become unstable, and the cost increases, so it is not necessarily a preferable solution.

Method used

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  • Insulation paper, insulation paper insertion device and stator
  • Insulation paper, insulation paper insertion device and stator
  • Insulation paper, insulation paper insertion device and stator

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0041] figure 1 It is a cross-sectional view showing the structure of a part of the slots of the stator using the insulating paper according to the first embodiment of the present invention. figure 2 is zoomed in figure 1 A cross-sectional view of the structure of the opening of one slot is shown. image 3 It is an explanatory drawing explaining the effect of the insulating paper of 1st Embodiment of this invention. In addition, the cross-sectional views in the drawings described below represent cross-sections cut along a direction perpendicular to the axial direction of the stator.

[0042] The stator 1 shown in this embodiment has a plurality of slots 12 opening toward the central shaft hole 11 of the stator core 10 . The slots 12 are radially arranged at equal intervals along the circumferential direction of the stator core 10 (direction along the D1 direction). Teeth 13 are formed between adjacent slots 12 , 12 .

[0043] The groove 12 is formed in a groove shape rec...

no. 2 approach

[0054] Figure 4 It is an enlarged transverse cross-sectional view showing the structure of the opening of the stator using the insulating paper according to the second embodiment of the present invention. and Figure 1 ~ Figure 3 Portions with the same reference numerals have the same structure, and therefore, their descriptions are referred to above and omitted in the following description.

[0055] Similar to the first embodiment, the extension part 23 of the insulating paper 2 shown in this embodiment is also bent so that the end part 23b is pressed toward the side closer to the bottom 12b of the groove 12 than the position of the bent part 23a. , however, by further providing a second bent portion 23c between the bent portion (first bent portion) 23a and the terminal portion 23b slightly near the end portion 23b, so as to face the inner side of the groove 12 (bottom 12b side) Bend in a convex way.

[0056] Thus, the extension portion 23 is inclined toward the bottom 12...

no. 3 approach

[0059] Figure 5 It is an enlarged transverse cross-sectional view showing the structure of the opening of the stator using the insulating paper according to the third embodiment of the present invention. and Figure 1 to Figure 4 Parts with the same reference numerals have the same structure, and therefore, their descriptions are referred to the above descriptions and omitted in the following descriptions.

[0060] The extended portion 23 of the insulating paper 2 shown in this embodiment is different from the second embodiment in that it is bent so as to protrude toward the inside of the slot 12 by the first bending portion 23a and the second bending portion 23c. same. However, the difference from the second embodiment is that the width W1 of the extension part 23 is formed wider than that of the second embodiment, and the terminal part 23b on the terminal side of the second bending part 23c is arranged so as to face Parallel ground contact with the side surface part 21b ...

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PUM

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Abstract

The present invention provides an insulation paper, an insulation paper insertion device, and a stator, which can maintain a state in which a groove is closed by the extending portion of the insulation paper even if a radial opening force is generated at the extending portion of the insulation paper. The insulation paper (2) disposed in a groove (12) of a stator core (10) is provided with: two side portions (21a, 21b), which are arranged along two opposite inner surfaces (12c) in the groove; and an extension portion (23) which is provided on at least one of the two side portions, and extends so as to protrude outward from the opening portion (12a) of the groove, wherein the extension portion is bent in the vicinity of the opening, and the end portion (23b) of the extension portion is arranged closer to the bottom (12b) side of the groove than the opening portion. The end portion (23b) is in contact with the opposite side part or the end part of another extension part provided on the opposite side part; the bending angle (alpha) of the extension part is an acute angle; and the stopping angle (beta) of the extension portion is larger than or equal to the bending angle (alpha).

Description

technical field [0001] The present invention relates to insulating paper, an insulating paper inserting device and a stator. Background technique [0002] Conventionally, there is known a stator in which coils are arranged through insulating paper in slots of the stator core. like Figure 10A As shown, the insulating paper 200 in the slot 101 of the stator 100 has an extension 201 protruding outward from the opening 101 a of the slot 101 . In order to secure a creepage distance between the coil 300 and the stator core 102 , the extension part 201 is bent so as to cover the coil 300 in the slot 101 . [0003] However, in this case, due to the rebound of the insulating paper 200, as Figure 10B As shown, the extension 201 may be opened. like Figure 11 As shown, in the case where the slot 101 of the stator core 102 is a semi-closed slot having the flanges 102a, 102a, since the extension 201 is pressed by the flange 102a, the insulating paper 200 will not be damaged due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/10H02K3/34
CPCH02K15/10H02K3/345Y02T10/64
Inventor 吉田尚坂本隆三
Owner HONDA MOTOR CO LTD