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Conductive wire for motor, and coil for motor

一种马达、导线的技术，应用在绝缘载体上的导电层、预防/减少绕组头中的涡流损耗等方向，能够解决周长差、细线散乱、无法维持细线集合状态等问题，达到提高耐久性、抑制接合部分离的效果

Inactive Publication Date: 2012-09-12
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the outer peripheral surface of the thin wire bundle is covered with resin, the strength of the covered part is low
Therefore, when bending a lead wire to form a coil for a motor, for example, at the bent portion of the lead wire, the bending diameter of the inner lead wire and the outer lead wire is different, so there is a difference in circumference, which cannot be fixed by a resin coating. Maintains the bundled state of the thread, causing the bundled thread to scatter

Method used

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  • Conductive wire for motor, and coil for motor
  • Conductive wire for motor, and coil for motor
  • Conductive wire for motor, and coil for motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The flat wire 1 of embodiment 1 is as figure 1 Shown are a plurality of fine wires 10 as well as foil 12 or the like. In addition, the foil material 12 is an example of the "foil member" of this invention. Also, for the sake of illustration, figure 1 The illustrated flat wire 1 omits an insulating layer provided by coating an enamel resin or the like on the outer peripheral surface to ensure insulation.

[0044] The thin wire 10 is a member in which an insulating portion 16 is provided on an outer peripheral surface of a core wire 14 . The core wire 14 is an electrical conductor, and is formed in a linear shape from a conductive metal such as copper, aluminum, silver, gold, or an alloy thereof, for example. The insulating portion 16 is formed of enamel resin, metal oxide, or the like.

[0045] Such as figure 1 As shown, the flat lead wire 1 is formed by covering the outer peripheral surface of an aggregate thin wire 18 in which a plurality of thin wires 10 are bund...

Embodiment 2

[0064] The flat wire 2 of embodiment 2 is as Figure 5 Shown are a plurality of filaments 10 and bands 32 and the like. The thin wire 10 is the same as that of Example 1. Such as Figure 5 As shown, the flat wire 2 is formed by winding a tape 32 in a helical shape on the outer peripheral surface of an aggregated thin wire 18 in which a plurality of thin wires 10 are bundled together. In addition, the belt 32 is an example of the "belt-shaped member" of this invention. In the following description, the same reference numerals are assigned to the same constituent elements as those in Embodiment 1, and description thereof will be omitted.

[0065] In addition, the material of the tape 32 is the same metal as the core wire 14 of the thin wire 10 (that is, a metal having the same resistance value) or a metal having a resistance value higher than that of the core wire 14 of the thin wire 10 . For example, when the core wire 14 of the thin wire 10 is made of copper, the material ...

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PUM

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Abstract

The present invention addresses the problem of providing a conductive wire for a motor, said conductive wire having improved durability against bending work, and a coil for a motor, said coil using the conductive wire. According to one embodiment of the present invention, a conductive wire for a motor is formed by covering with a covering member the outer circumferential surface of a fine wire assembly wherein a plurality of fine wires are bundled, each of said fine wires being provided with an insulating portion on the outer circumferential surface of a conductive body. The conductive wire is characterized in that the covering member is formed of a metal, and that the electrical resistance value of the covering member is equal to or higher than the electrical resistance value of the conductive body.

Description

technical field [0001] The present invention relates to a lead wire for a motor constituted by bundling a plurality of thin conductive wires, and a coil for a motor using the lead wire for a motor. Background technique [0002] In order to increase the occupation ratio of the coil in the motor, a flat wire is used as the wire material of the coil. Here, the occupation ratio of the coil is the ratio of the area of ​​the wire material in the cross section of the space where the coil is arranged. However, since the flat wire has a large cross-sectional area, when the flat wire is placed in an AC magnetic field, the eddy current generated in the plane perpendicular to the magnetic flux in the flat wire becomes larger, and the eddy current loss may increase. Here, the eddy current loss refers to power loss due to the flow of eddy currents. [0003] Therefore, it can be considered to reduce the cross-sectional area of ​​each conductor wire by bundling a plurality of thin conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/42
CPCH02K3/42H01B5/14
Inventor 浦野广晓
Owner TOYOTA JIDOSHA KK
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