An integrated structure of rectifier bridge rear cover

Abstract

The invention relates to the technical field of current generators, in particular to an integrated rectifier bridge rear cover structure, including a motor rear end cover, and a rectifier bridge assembly connected to the motor rear end cover, and the rectifier bridge assembly includes a six-phase A rectifier bridge, the six-phase rectifier bridge includes six first diodes that are press-fitted on the end cap. The six-phase rectifier bridge of the present invention adopts an integrated structure with the rear end cover of the motor, the first diode is press-fitted into the motor rear end cover, and the second diode is press-fitted into the heat dissipation plate, so that the heat dissipation area of ​​the diode is large , the heat dissipation performance is better, which is beneficial to improve the service life of the diode, and cancels the installation rectifier plate of the first diode, which can reduce the axial size of the alternator and make the volume of the alternator smaller; at the same time, the diode adopts avalanche Diodes can quickly recover after breakdown within a certain voltage range, and can absorb reverse high voltage pulses in the circuit to protect ECU, electrical appliances and other electrical systems from high voltage damage.

Description

Technical field [0001] The invention relates to the technical field of AC generators, in particular to an integrated structure of a rectifier bridge rear cover. Background technique [0002] With the continuous development of the automobile industry, compact cars still occupy a dominant position, and the space reserved for generators in the engine room is getting smaller and smaller. [0003] The alternator is a device that converts mechanical energy into electrical energy. As the main component of the alternator, the rectifier bridge rectifies the alternating current generated by the alternator into direct current and outputs it through the B+ terminal. [0004] The existing alternator has the following defects: the heat dissipation area of ​​the rectifier bridge pole plate is small, the temperature rises, the output performance of the alternator is low, and the axial size of the alternator is large. Summary of the invention [0005] In view of the problems existing in the prior art...

AI Technical Summary

Problems solved by technology

[0004] The existing alternator has the following defects: the heat dissipation area of ​​the rectifier bridge plate is small, the temperature rises, the output performance of the alternator is low, and the axial dimension of the alternator is large

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