Three-phase copper bar structure of hybrid power motor

Abstract

The invention relates to a hybrid power motor three-phase copper bar structure which comprises a copper bar assembly, the copper bar assembly is formed by welding and arranging three soft copper bars and three hard copper bars respectively, the extension ends of the soft copper bars are provided with connecting holes, the extension ends of the hard copper bars are provided with blocking blocks, the front ends of the extension ends of the hard copper bars are provided with threaded inserts in a riveted mode, and the threaded inserts are provided with threaded holes. A threaded insert is arranged on the blocking block, the threaded insert is provided with a blind hole which is recessed inwards, an insulating shell is formed on the portion, welded between the blocking blocks, of the copper bar assembly in an injection molding mode, the insulating shell is provided with an assembling groove for installing a hard copper bar, the assembling groove is provided with an assembling hole, and the threaded insert on the hard copper bar is embedded in the assembling hole. Epoxy resin is filled in a gap between the assembling groove and the hard copper bar, a plurality of nesting holes are formed in the insulating shell, and nesting sleeves are arranged in the nesting holes. The motor copper bar protection device is compact in structure, easy to assemble, good in motor copper bar protection and insulation effect and beneficial to motor batch and automatic production.

Description

technical field [0001] The invention relates to the technical field of hybrid electric motors, in particular to a three-phase copper bar structure of a hybrid electric motor. Background technique [0002] The three-phase copper bar of the motor is a key electrical component of the power system of the new energy vehicle. Its main function is to connect the three-phase line of the stator with the external high-voltage line, transmit the output current and voltage, and prevent electromagnetic interference. Among them, in the working process of the motor, the transmission of the motor power directly affects the power of the whole vehicle, which requires that the connection between the motor and the three-phase copper bars must meet the characteristics of reliable mechanical connection, reliable temperature rise, and reliable air tightness. [0003] At present, the traditional three-phase copper bar of the motor is a separate part. Due to the vibration of the motor, it is easy to...

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional three-phase copper bar of the motor is divided into parts. Due to the vibration of the motor, it is easy to cause looseness between the parts of the three-phase copper bar, which will generate noise and affect the normal operation of the three-phase copper bar.

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