Element wire assembly and method for manufacturing the same
A technology of wire components and components, applied in coil manufacturing, electrical components, coils, etc., can solve the problems of coil space factor reduction and easy gap generation
Inactive Publication Date: 2015-12-02
TOYOTA JIDOSHA KK
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Therefore, those publications do not solve the above-mentioned problems, that is, the problem that a gap is easily generated between adjacent element wires, and the problem that the space factor of the coil is reduced when the coil is formed by using the element wires.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
example 1 and 2
[0040] Element wire assemblies were manufactured in accordance with the manufacturing methods of Examples 1 and 2 described above.
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Abstract
A method for manufacturing an element wire assembly includes: a first step of bunching up and rolling or drawing a plurality of circular cross-section conducting wires (1) to shape each of the conducting wires into a polygon in cross section and form the conducting wires (1') and form a conducting wire assembly (10); and a second step of heat-treating the conducting wire assembly (10) to form an oxide film (2) on the periphery of each of the conducting wires (Γ) to form element wires (3) and form an element wire assembly (20).
Description
technical field [0001] The present invention relates to an element wire assembly applicable to, for example, a motor coil as a winding in which a plurality of element wires are bundled into one unit, and to a method for manufacturing the element wire assembly. Background technique [0002] Every day technological development is directed to attain miniaturization and high output of several on-board electric motors including electric motors for driving hybrid cars or electric vehicles. One way to achieve these two goals involves increasing the spacefactor of the coils in the slots of the stator core. Furthermore, one approach to improving the space factor of the coil includes applying a rectangular cross-section wire to the element wire for the coil instead of the circular cross-section element wire (round wire) that has been generally used so far. [0003] Rectangular wires that are conventionally used in general include element wires of an insulating film made of a thermopl...
Claims
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IPC IPC(8): H01F5/06H01B13/06H01B7/02H01F41/12
CPCH01F41/12B21B1/166C21D8/06C22F1/08H01F5/06H01B5/12H01B13/0016
Inventor 河西启友丸山大地董树新高尾尚史浦田信也岡本笃人中井英雄
Owner TOYOTA JIDOSHA KK