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bus bar unit

A bus bar and stator technology, which is applied to household components, electrical components, electromechanical devices, etc., can solve the problems of increasing conductor resistance and reducing the amount of current flowing through the main body.

Active Publication Date: 2018-04-13
KYB CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a through-hole is formed in the bus bar in this way, the cross-sectional area of ​​the main body is reduced. Therefore, when a motor or the like is driven, the conductor resistance increases at the position where the through-hole is formed, and the amount of current flowing through the main body decreases.

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0016] figure 1 It is a configuration diagram showing the stator 1 constituting the three-phase AC motor.

[0017] The annular stator core 3 held by the housing 2 is formed with a plurality of tooth portions (not shown) so as to protrude inward. A copper wire is wound around each tooth, and the coil 4 is formed by the wound wire.

[0018] The stator core 3 is provided with 18 coils 4 in a ring shape along the circumferential direction of the stator 1. The coil 4 is composed of a U-phase coil 4U, a V-phase coil 4V, and a W-phase coil 4W, and two in-phase coils 4 in a set are arranged at intervals of 120 degrees in the circumferential direction of the stator 1. Therefore, one set of U-phase coils 4U, one set of V-phase coils 4V, and one set of W-phase coils 4W are sequentially arranged in three sets along the circumferential direction of the stator 1.

[0019] In the adjacent c...

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PUM

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Abstract

A bus bar unit is formed by insert-molding a plurality of bus bars, and the plurality of bus bars are arranged along the axial direction of the stator, wherein the bus bar includes: a main body extending along the circumferential direction of the stator; A through hole formed in the main body through which a support pin of the main body for supporting other bus bars penetrates in the axial direction of the stator during insert molding; and a protruding part provided on the side of the main body corresponding to the through hole , and expand the cross-sectional area of ​​the main body.

Description

Technical field [0001] The invention relates to a bus bar unit connected to the windings of a motor and a generator. Background technique [0002] In Japan JP2011-205875A, a bus bar unit is disclosed. The bus bar unit is provided with insulating resin between the three ring-shaped bus bars of the U-phase bus bar, the V-phase bus bar, and the W-phase bus bar. These bus bars are stacked along the stator axis. [0003] In Japanese JP2011-88406A, it is disclosed that in a state where a plurality of bus bars are supported by the support pins of a mold, these bus bars are insert-molded using an insulating resin to form a bus bar unit. [0004] A through hole is formed in the main body of the bus bar constituting the bus bar unit, and a support pin that supports the main body of another bus bar passes through the through hole when insert molding is performed. If the through hole is formed in the bus bar in this way, the cross-sectional area of ​​the main body portion is reduced. Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/50
CPCH02K3/50B29C45/14065B29C2045/14147B29C45/14467B29C2045/1454B29C45/14639B29L2031/36B29L2031/749H01R25/161H02K3/28H02K3/38
Inventor 宝积宣至松前太郎黑川芳辉坂本秀泷本亨山田真吾
Owner KYB CORP