Aluminium wire stator winding joint processing technique

A processing technology, a technology of aluminum wire stator, is applied in the field of stator winding joint processing technology, which can solve the problems of increasing joint resistance, affecting product quality, increasing joint resistance, etc. The effect of oxidation

Inactive Publication Date: 2012-02-15
WENDENG ALLWIN MOTORS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem is the treatment of copper and aluminum wire joints. One is that the aluminum wire is easily oxidized, which increases the resistance of the joint. Increase joint resistance, ultimately affecting product quality

Method used

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  • Aluminium wire stator winding joint processing technique
  • Aluminium wire stator winding joint processing technique
  • Aluminium wire stator winding joint processing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Treatment process of aluminum wire stator winding joints, the steps are:

[0019] a. Scrape the insulation on the terminals of the copper lead wire 1 and the insulation paint on the terminals of the coil aluminum wires 4 and 5 in the stator winding joint to be connected, and the paint length is 10mm;

[0020] b. Twist the coil aluminum wire with the insulation paint cleaned and the copper lead wire with the insulation peeled off, and apply conductive paste 2 so that the conductive paste is completely filled into the gap of the line; the conductive paste is 304 conductive Paste: There are two main functions of conductive paste: one is to fill the gap to prevent air from staying, and the other is to separate the surface of the aluminum wire from air to prevent oxidation;

[0021] c. The copper lead wire and the coil aluminum wire that are twisted and overlapped with each other are sheathed with the tube-shaped bare terminal 6 on the whole outside, and then compressed ...

Embodiment 2

[0023] Example 2: Treatment process of aluminum wire stator winding joints, the steps are:

[0024] a. Scrape the insulation on the terminals of the copper lead wire 1 and the insulation paint on the terminals of the coil aluminum wires 4 and 5 in the stator winding joints to be connected, and the paint length is 20mm;

[0025] b. Twist the coil aluminum wire with the insulation paint cleaned and the copper lead wire with the insulation peeled off, and apply conductive paste 2 so that the conductive paste is completely filled into the gap of the line; the conductive paste is 304 conductive Paste: There are two main functions of conductive paste: one is to fill the gap to prevent air from staying, and the other is to separate the surface of the aluminum wire from air to prevent oxidation;

[0026] c. The copper lead wire and the coil aluminum wire that are twisted and overlapped with each other are sheathed with the tube-shaped bare terminal 6 on the whole outside, and then compressed...

Embodiment 3

[0028] Embodiment 3: The treatment process of aluminum wire stator winding joints, the steps are:

[0029] a. Scrape the insulation on the terminals of the copper lead wire 1 and the insulation paint on the terminals of the coil aluminum wires 4 and 5 in the stator winding joint to be connected, and the paint length is 15mm;

[0030] b. Twist the coil aluminum wire with the insulation paint cleaned and the copper lead wire with the insulation peeled off, and apply conductive paste 2 so that the conductive paste is completely filled into the gap of the line; the conductive paste is 304 conductive Paste: There are two main functions of conductive paste: one is to fill the gap to prevent air from staying, and the other is to separate the surface of the aluminum wire from air to prevent oxidation;

[0031] c. The copper lead wire and the coil aluminum wire that are twisted and overlapped with each other are sheathed with the tube-shaped bare terminal 6 on the whole outside, and then comp...

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Abstract

The invention discloses an aluminium wire stator winding joint processing technique. The insulating varnish of the end of a copper lead to be connected and the insulating varnish of the ends of aluminium coil wires are completely scraped off, the length of the scraped insulating varnish is about 15mm, the copper lead and the aluminium coil wires are then overlapped and stranded together, and are coated with 304 conductive paste until the gap between the wires is filled with the 304 conductive paste, and finally, a tubular bare terminal, which is cylindrical and the surface of which is tinned, is sleeved on the overlap and compressed by a pair of special crimping pliers. The conductive paste has two main functions, one of the functions is that the conductive paste is filled in the gap to prevent the residence of the air, and the other function is that the conductive paste isolates the surface of the aluminum wires from the air, so that oxidation can be prevented. Since the surfaces of the copper core of the lead and the tubular bare terminal are tinned, the contacted surfaces of copper and aluminium can be prevented from electrical corrosion. A heat-shrinkable tube for sealing can prevent the loss of the conductive paste. The quality can be kept stable for a long time.

Description

Technical field [0001] The invention relates to an aluminum wire stator winding joint, in particular to a processing technology for the stator winding joint of an aluminum wire grinder, a motor and the like. Background technique [0002] The coil winding adopts copper wire grinder, and its copper wire cost accounts for about 1 / 3 of the total material cost. Copper is a precious non-ferrous metal. The price of copper has increased by about three times in the past 5 years, which has caused a substantial increase in product costs and severely affected product competitiveness. Under the premise of ensuring the original performance, the electromagnetic data of the grinder windings are redesigned and aluminum wires are used. Substitution of copper wire may have greatly reduced costs. [0003] According to the physical and chemical characteristics of copper and aluminum, it is considered that the volume of the stator core should be appropriately increased, and the cross-sectional area of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00
Inventor 马宏伟
Owner WENDENG ALLWIN MOTORS MFG
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