CN102594036A

CN102594036A - Internal joint process of aluminum wire motor

Info

Publication number: CN102594036A
Application number: CN2011104370593A
Authority: CN
Inventors: 朱春富; 朱人杰; 顾学明; 屈健伦; 费洪明; 王寿根
Original assignee: Zhejiang Jeamo Motor Co Ltd
Current assignee: Zhejiang Jeamo Motor Co Ltd
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2012-07-18

Abstract

The invention discloses an internal joint process of an aluminum wire motor. Firstly, an aluminum enamelled wire and a copper lead-out wire are subjected to terminal press connection, during the press connection, the aluminum enamelled wire is placed at the bottom of a U-shaped terminal, and the copper lead-out wire is placed on the aluminum enamelled wire; then, a heat shrinkage sleeve is sheathed on the U-shaped terminal, at least 10mm of heat shrinkage sleeves are respectively exposed at two ends of the U-shaped terminal, a stator is placed on a heating air passage, the heat shrinkage sleeve is heated, and two ends of the heat shrinkage sleeve are sealed, fixed and formed; next, an insulation sleeve is sheathed outside the sealed sleeve; and finally, the stator is integrally immersed by insulation paint and is then baked, and during the process, the insulation paint is immersed inside the insulation sleeve. The internal joint process of the aluminum wire motor has the advantages that the heat shrinkage sleeves are sheathed outside the U-shaped terminal, the triple sealing protection is realized at the aluminum wire joint part through the sheathing of the insulation sleeve and the immersing of the insulation paint, the sealing effect at the U-shaped terminal part is better, and the motor insulation is more perfect, so the motor quality is improved, and the service life of the motor is prolonged.

Description

Electric machine with aluminium winding internal connection technology

Technical field

The present invention relates to the electric machine with aluminium winding production field, especially a kind of electric machine with aluminium winding internal connection technology.

Background technology

Significantly rising along with the copper material price; The cost pressure of electromechanics trade increases day by day, because the aluminium valency is less than 1/2 of copper valency, the proportion of aluminium is less than 1/3 of the proportion of copper; The cost advantage of aluminium is quite obvious, and therefore increasing motor manufacturer begins to produce electric machine with aluminium winding.But because the chemical of metallic aluminium is very active, two big difficult points below in the electric machine with aluminium winding production process, can producing: 1, behind the high temperature, aluminum steel meeting abrupt oxidization, even blackening form layer oxide film, cause the welding difficulty big.2, the aluminum steel joint must seal, in case oxidation, but can cause electric conductivity to reduce like this, cause reduce its useful life.

Summary of the invention

The objective of the invention is provides a kind of aluminum steel joint that can effectively prevent that the electric machine with aluminium winding internal connection technology of oxidation takes place for the deficiency that solves above-mentioned technology.

In order to achieve the above object, the electric machine with aluminium winding internal connection technology that the present invention designed is at first carried out the terminal crimping to aluminium enamel-covered wire and copper lead wire, and aluminium enamel-covered wire is placed on U type terminal bottom during crimping, and copper lead wire is placed on above the aluminium enamel-covered wire; Then heat-shrinkable T bush is set on the U type terminal, respectively exposes the heat-shrinkable T bush of 10mm at least, place stator put to add hot-flow flue, heat-shrinkable T bush is heated, make the fixedly moulding of heat-shrinkable T bush sealed at both ends at U type terminal two ends; Insulating sleeve on the Sealed casing pipe outer cover then; Immerse stator integral body with insulating varnish at last, oven dry again, in this process, insulating sleeve inside has insulating varnish to infiltrate.

As optimization, the heat resisting temperature of the heat-shrinkable T bush of employing is 120 ℃-180 ℃.

The resulting electric machine with aluminium winding internal connection of the present invention technology because there is groove U type terminal inside, can puncture the paint film of enamelled wire, need not remove the paint film of enamelled wire when making crimping, thereby can shorten technology chain, enhances productivity.Simultaneously be arranged with heat-shrinkable T bush in U type terminal outer; And through being the seal protection of realizing U type terminal after the heating, and the immersing of sheathed and the insulating varnish of insulating sleeve, the aluminum steel joint has triple seal protection; Make U type terminal place sealing effectiveness better; The insulation of motor is more perfect, thereby improves motor quality, the useful life of improving motor.

Embodiment

Through embodiment the present invention is done further description below.

Embodiment 1:

The electric machine with aluminium winding internal connection technology that present embodiment is described is at first carried out the terminal crimping to aluminium enamel-covered wire and copper lead wire, and aluminium enamel-covered wire is placed on U type terminal bottom during crimping, and copper lead wire is placed on above the aluminium enamel-covered wire; Be that 120 ℃ 180 ℃ heat-shrinkable T bush is set on the U type terminal with heat resisting temperature then, respectively expose the heat-shrinkable T bush of 10mm at least, place stator put to add hot-flow flue, heat-shrinkable T bush is heated, make the fixedly moulding of heat-shrinkable T bush sealed at both ends at U type terminal two ends; Insulating sleeve on the Sealed casing pipe outer cover then; Immerse stator integral body with insulating varnish at last, oven dry again, in this process, insulating sleeve inside has insulating varnish to infiltrate.

Claims

1. electric machine with aluminium winding internal connection technology is characterized in that: at first aluminium enamel-covered wire and copper lead wire are carried out the terminal crimping, aluminium enamel-covered wire is placed on U type terminal bottom during crimping, and copper lead wire is placed on above the aluminium enamel-covered wire; Then heat-shrinkable T bush is set on the U type terminal, respectively exposes the heat-shrinkable T bush of 10mm at least, place stator put to add hot-flow flue, heat-shrinkable T bush is heated, make the fixedly moulding of heat-shrinkable T bush sealed at both ends at U type terminal two ends; Insulating sleeve on the Sealed casing pipe outer cover then; Immerse stator integral body with insulating varnish at last, oven dry again, in this process, insulating sleeve inside has insulating varnish to infiltrate.

2. electric machine with aluminium winding internal connection technology according to claim 1, the heat resisting temperature that it is characterized in that described heat-shrinkable T bush are 120 ℃-180 ℃.