Conductive connection method of a motor coil

Abstract

The invention relates to a conductive connection method for motor coils, which includes a power supply wire and an enameled wire wound on the motor stator; the conductor of the power supply wire is copper wire, and the conductor of the enameled wire is aluminum wire; the copper wire is divided into a whole copper wire bundle and a A number of scattered copper wires are rotated and wound with the overall copper wire bundle and aluminum wire to form a copper-aluminum winding wire bundle, and several scattered copper wires are used to wrap and wind the surface of the copper-aluminum winding wire bundle to form a copper-aluminum wrapping wire bundle, and then Use the opening at the lower end of the copper sleeve to clamp and press it on the copper-aluminum wrapped wire harness, and form a cavity inside the copper sleeve, and finally use the tin liquid to flow into the copper sleeve to discharge the air inside the copper sleeve to complete the connection between the copper sleeve and the copper sleeve. The welding between the aluminum-wrapped wire harnesses makes the copper-aluminum-wrapped wire harness inside the copper sleeve in a vacuum state, so as to avoid the exposure of the aluminum wires, reduce the problems that the aluminum wires are easy to be cut off, or oxidized by contact with the outside air, and improve the copper wire and aluminum connection. Conductive connection stability and service life between wires.

Description

technical field [0001] The invention relates to a conductive connection method for motor coils. Background technique [0002] During the production of the motor, the enameled wire of the stator coil needs to be connected with the external power line after being wound. Among them, the conductor of the enameled wire of the stator coil and the conductor of the power line are usually copper wires. Since both are copper wires, the production cost Very high. In order to reduce the production cost, the manufacturer will replace the enameled wire conductor material of the stator coil with aluminum wire. Although it can reduce the production cost, when the enameled wire of the stator coil is connected with the power wire, the overlapping winding method is usually adopted, that is, the enameled wire is first 1. Remove the insulating layer on the surface of the conductor of the power line, so that the conductors of the two are exposed respectively, and then the exposed conductors of t...

AI Technical Summary

Problems solved by technology

In order to reduce the production cost, the manufacturer will replace the enameled wire conductor material of the stator coil with aluminum wire. Although it can reduce the production cost, when the enameled wire of the stator coil is connected with the power wire, the overlapping winding method is usually adopted, that is, the enameled wire is first 1. Remove the insulating layer on the surface of the conductor of the power line, so that the conductors of the two are exposed separately, and then the exposed conductors of the two are overlapped with each other, and finally rotated and wound, so as to complete the docking of the enameled wire of the stator coil and the power cord. The butt connection method is easy to cause the aluminum wire conductor to be exposed, and the exposed aluminum wire conductor is easy to cut off, or contact with the outside air to cause oxidation, resulting in short circuit of the motor and failure to work, poor stability and short life