Electric power-assisted steering controller in square-box shape

Abstract

The invention discloses an electric power-assisted steering controller in a square-box shape. The electric power-assisted steering controller comprises a PCB, a base and a cover board, wherein tapered supporting columns and a heat conducting seat are integrally formed on the base; the PCB is placed on the tapered supporting columns, positioned through two positioning columns penetrating through the PCB, and is fixed on the heat conducting seat through screws in a combining manner; the two positioning columns have different cross sections; the base and the cover board are pressed together; mounting bulges are inserted in corresponding mounting notches; the tapered supporting columns are positioned in the cover board, and the cover board and the base are buckled more and more tightly through the tapered supporting columns; four circular columns which are distributed in a rectangular shape and extend upwards are integrally formed on the base; a plurality of thread mounting blind holes corresponding to the the circular columns in position are formed in the back of the base, wherein the number of the thread mounting blind holes is the same as that of the circular columns. Through the adoption of the structure, the phenomena that the base and the cover board slightly swing after being mounted, the PCB and the base slightly swing after being mounted can be effectively avoided, and the problem that the local temperature of the PCB is too high is solved; the PCB can be prevented from being arranged inversely in the fore-and-aft direction; the electric power-assisted steering controller has a dust preventing effect.

Description

technical field [0001] The invention relates to an electric power steering controller used in automobiles, belonging to the technical field of mechanical structures. Background technique [0002] The electric power steering controller is an essential part of the electric power steering control system, which consists of a PCB board, a base, a cover plate and a connector. The cover plate and the base together form a controller housing, and the PCB board is mounted on the base and located in the controller housing. There are four connectors in total, namely motor power connector, sensor signal connector, vehicle body power connector and vehicle body signal connector, and the four connectors are all installed on the side wall of the cover plate. [0003] The base and the cover are fixed together by pressing. In the actual production and use process, the base and the cover are occasionally pressed and not tightened after being pressed. The installation between the PCB board and ...

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problems of slight shaking after installation between the base and the cover plate, between the PCB board and the base, the PCB board is placed backwards and forwards, and the local temperature of the PCB board is too high, while reducing the overall size and facilitating the overall layout

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