Auxiliary drive capacitor protection structure of electric vehicle all-in-one controller

Abstract

The invention discloses an auxiliary drive capacitor protection structure of an electric vehicle all-in-one controller. The auxiliary drive capacitor protection structure comprises capacitors, shock pads, a base plate, screws, a box, bosses, limiting fixing holes, screw holes and a PCB. The shock pads are arranged, each shock pad is of a cuboid structure, three bosses are arranged on each shock pad, bosses are also designed on the base plate of the all-in-one controller, and the corresponding limiting fixing holes are designed in the bosses; in the assembling process, the shock pads are fixed to the bosses of the base plate, the shock pads are in interference fit with the capacitors, and the base plate is fixed to the box through the screws. The shock pads are made of silicone rubber and have good elasticity, the rubber pads are pressed through interference fit of the shock pads and the capacitors, then the capacitors are held by the rubber pads, and a downward gravity of the capacitors is removed; shock generated in the vehicle running process is absorbed by the shock pads, the welding portion of the capacitors and the PCB is not stressed, and the reliability of the product is guaranteed.

Description

technical field [0001] The invention relates to a capacitor protection structure, in particular to an electric vehicle multi-in-one controller auxiliary drive capacitor protection structure. Background technique [0002] Most of the existing all-in-one controllers for electric vehicles are divided into two layers. The front is the main drive + power distribution, and the back is the auxiliary drive module. The capacitor on the capacitor board of the auxiliary drive module is welded on the PCB, and the capacitor The board is flipped on the bottom of the all-in-one controller. The capacitor itself has its own weight. During the driving process of the vehicle, there are vibrations in all directions. If there is no proper protection structure for the capacitor, the pins of the capacitor will be damaged. Solder breakage occurs, causing failure of the entire controller. At present, in order to solve this kind of failure, most manufacturers put white glue between and around the ca...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an electric vehicle all-in-one controller auxiliary drive capacitor protection structure, which solves the problem that most manufacturers put white glue between capacitors and around capacitors, and use white glue to strengthen the stability of capacitors. However, this method does not The essential problem is not solved, because the glue is also applied at the root of the capacitor, the downward gravity of the capacitor still exists, and the vibration of the vehicle still exists when the vehicle is driving.

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