Motor protection type electric-controlled brake booster

Abstract

The invention discloses a motor protection type electric-controlled brake booster, which comprises an electric motor, a driving mechanism, a pedal input mechanism, a shell body component, an electronic control unit, a main brake cylinder and a fluid storage tank; the pedal input mechanism is fixedly installed at the back end part of the shell body component, and the electric motor is fixedly installed at the lower end part of the shell body component; the main brake cylinder is further fixedly equipped with one fluid storage tank, and the driving mechanism is fixedly installed at the inner endpart of the shell body component. Through sheathing an annular motor cover on the outer surface of the electric motor and coating glue water to the joint between the motor cover and the shell body component or sealing by a rubber ring, while sealing the joint between the annular motor cover and the motor by the rubber ring also, the waterproof measure of the motor is effectively realized, the using environment requirement of arranging the booster assembly at an engine cabin is satisfied, and the service life of the motor is prolonged.

Description

technical field [0001] The invention belongs to the field of automobile brake boosters, in particular to a motor protection type electric control [0002] brake booster. Background technique [0003] Most traditional automobile brake boosters are in the form of vacuum boosters. The traditional car braking system is mostly hydraulic. The driver steps on the brake pedal, pushes the pedal input rod to push the brake master cylinder, and the vacuum booster also applies the brake boost to the pedal input rod at the same time. The active master cylinder produces axial thrust. The brake master cylinder and the brake caliper piston cavity of the four wheels are equivalent to a connector structure. The hydraulic pressure of the master cylinder is transmitted to the wheel cylinder basically without loss, and the piston at the end moves axially to clamp the brake disc to generate braking force. [0004] When the hydraulic brake system is used, the force of the driver stepping on the...

AI Technical Summary

Problems solved by technology

This type of electronically controlled brake booster needs to develop the motor and motor accessories separately, instead of using the batch brushless DC motors that are already on the market, which greatly increases the cost of product development

[0010] At the same time, most of the existing traditional motors are directly exposed on the outer surface, which cannot effectively protect the motor from waterproofing, which greatly increases the damage rate of the motor

Images