Load fastening structure and power control box using the structure

Abstract

A load-bearing fastening structure and an electric power control box using the structure, the load-bearing fastening mechanism includes a 90-degree angle of installation space formed by welding the main bracket and the auxiliary bracket to each other, and the horizontal and vertical intersection of the main bracket and the auxiliary bracket is used. The bolts transmit the pressure to the 4 fixed brackets on the outside of the 4 edges of the box, and then to the rubber shock absorbers under the brackets to limit the vibration transmitted from the body to the electric control unit. The shape and size of the main bracket and the auxiliary bracket of the present invention can be re-customized according to the requirements of different car models, so as to meet the requirements of allowing the same power control unit to be flexibly adapted to various different car models. Uniform distribution avoids the risk of box tearing; L-shaped angle steel and waterproof bolts are integrally welded to improve the overall strength; irregular fixing round holes act as a limit, so that sufficient torque can be applied to the bolts to fasten the shock-absorbing rubber piece.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a load-bearing fastening structure used in electric vehicles and a split-integrated power control box using the structure. Background technique [0002] The power control unit is an important part of the electric vehicle, and the design of the load-bearing fastening structure of the power control unit is directly related to the stable working state of each electrical component in the power control unit box. At present, the fastening of the power control unit is mainly by welding horizontal or vertical sheet metal beams on the bottom surface of the box body, and then fixing the sheet metal beams and the body girder by bolts to achieve the purpose of fixing the box body. [0003] The application number is CN201220492888.1, and the patent titled "A lower fixing structure for a hybrid power system control unit" provides a lower fixing structure for a hybrid power system control unit....

AI Technical Summary

Problems solved by technology

The installation structure can only easily maintain the fastening position of the components on the outer frame in the width direction through the fixing of the bent frame, and the processing cost of the sheet metal bent frame is too high

[0005] Therefore, the common fixing methods in the prior art have their own limitations, cannot meet the flexible and changeable needs of the market, and need to be improved urgently.

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