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Novel enameled wire for traction motor and production method

A traction motor and production method technology, applied in circuits, insulated cables, electrical components, etc., can solve the problems of poor adhesion, low breakdown voltage, short service life, etc., and achieve high breakdown voltage, long service life, good The effect of quality assurance

Inactive Publication Date: 2014-08-13
ZHEJIANG GREATWALL ELECTRIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional enameled wires generally have disadvantages such as poor adhesion, low breakdown voltage, and short service life.

Method used

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  • Novel enameled wire for traction motor and production method

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0013] Example. A new type of enameled wire for traction motors, composed of figure 1 As shown, it includes a copper round wire 1, and the surface of the copper round wire 1 is sequentially provided with a polyester paint layer 2, a polyesterimide paint layer 3 and a polyamideimide paint layer 4, and the polyester paint layer 2 Thickness: Polyesterimide paint layer 3 Thickness: Polyamideimide paint layer 4 Thickness = 1:6:3.

[0014] The total thickness of the polyester paint layer 2, polyesterimide paint layer 3 and polyamideimide paint layer 4 is 0.067mm-0.072mm.

[0015] The polyesterimide paint layer is composed of seven polyesterimide single paint layers, and the thickness of each polyesterimide single paint layer is 0.004mm.

[0016] The polyester paint layer adopts the high-toughness polye...

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Abstract

The invention discloses a novel enameled wire for a traction motor and a production method. The novel enameled wire comprises a copper round wire (1), a polyester paint layer (2), a polyesterimide paint layer (3) and a polyamide-imide paint layer (4) are sequentially arranged on the surface of the copper round wire (1) from inside to outside, and the ratio of the thickness of the polyester paint layer (2) to the thickness of the polyesterimide paint layer (3) to the thickness of the polyamide-imide paint layer (4) is 1 to 6 to 3. The novel enameled wire has the advantages of being good in adhesiveness, high in breakdown voltage and long in service life.

Description

technical field [0001] The invention relates to an enamelled copper round wire for a traction motor and a production method thereof, in particular to a novel enameled wire for a traction motor and a production method thereof. Background technique [0002] The enameled wire for traction motor is an enameled wire mainly suitable for high-power traction motors (such as mine traction motors, metallurgical traction motors, rail traction motors, and elevator traction motors). Due to the harsh conditions of some traction motors, higher requirements are put forward for their performance. However, conventional enameled wires generally have disadvantages such as poor adhesion, low breakdown voltage, and short service life. Contents of the invention [0003] The object of the present invention is to provide a novel enameled wire for traction motors and a production method. The invention has the characteristics of good adhesion, high breakdown voltage and long service life. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B13/16
Inventor 顾林祥姚桂华李回劲茅新良沈永清张华高
Owner ZHEJIANG GREATWALL ELECTRIC SCI & TECH