Integrated rear drive assembly for electric vehicle rear axle

Abstract

The invention discloses an integrated rear drive assembly for an electric vehicle rear axle in the technical field of electric vehicles. The integrated rear drive assembly comprises a differential mechanism, a motor for providing power input for the differential mechanism, a controller used for controlling the working state of the motor, and a pair of half shafts installed at the power output end of the differential mechanism. The integrated rear drive assembly further comprises a heat discharge cap installed on the inclined upper side of a differential mechanism shell. The heat discharge cap is provided with a heat transfer block of a rotation body structure, a guide sleeve, a spring, a base table of a cylindrical structure, a reinforcing rib, a filter screen and a seal base of a rotation body structure. The heat transfer block is detachably installed on the shell wall of the differential mechanism shell in an inserted manner. The upper side of the heat transfer block is located outside the differential mechanism shell. The lower side of the heat transfer block is located in the differential mechanism shell. The guide sleeve is coaxially fixed to the center of the upper side of the heat transfer block. The integrated rear drive assembly has the beneficial effect that heat in the differential mechanisms shell is conveniently discharged.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle drive rear axle assembly. Background technique [0002] At present, the technology of driving the rear axle assembly of an electric vehicle is mature, including a differential, a motor that provides power input to the differential, a controller for controlling the working state of the motor, and a pair of half-wheels installed at the power output end of the differential. axis. [0003] During driving, the gears in the differential case rotate and mesh at high speed, which makes the temperature in the differential case very high, and the gears will produce various surface damages under high temperature, thus affecting the service life and use effect of the gears. Contents of the invention [0004] The purpose of the present invention is to provide a rear drive assembly of an integrated electric vehicle rear axle, which is convenient to discharge th...

AI Technical Summary

Problems solved by technology

[0003] During driving, the gears in the differential housing are rotating and meshing at high speed, which makes the temperature in the differential housing very high, and the gears will produce various surface damages at high temperatures, which will affect the service life and use effect of the gears.

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