Bearing fastening structure and power control box using same

Abstract

The invention relates to a bearing fastening structure and a power control box using the same. The bearing fastening structure comprises an installation space which forms an included angle of 90 degrees by welding a main support and an auxiliary support with each other, and pressure is transmitted to four fixed supports at the outer sides of the four edges of the box by using transversely and longitudinally crossed bolts of the main support and the auxiliary support; and then the pressure is transmitted damping rubber blocks below the supports, so that the vibration transmitted to the power control unit by a vehicle body is effectively reduced. According to the bearing fastening structure and the power control box, the shapes and sizes of the main support and the auxiliary support can be customized again according to the requirements of different vehicle types, so that the same type of power control unit can flexibly adapt to the requirements of various different vehicle types, the weight of the whole box is uniformly distributed through the transversely and longitudinally crossed bolts, and the risk of tearing the box is avoided; L-shaped angle steel and waterproof bolts are integrally welded to improve the overall strength; and irregular fixing round holes play a role in limiting, so that large enough torque is applied to the bolts to fasten the damping rubber blocks.

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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