Brake cylinder and brake system

Abstract

The invention belongs to the technical field of vehicle brake systems, and discloses a brake cylinder and a brake system. The brake cylinder comprises a cylinder body and a piston, wherein the piston is arranged in an accommodating cavity of the cylinder body in a sliding manner; the cylinder body comprises a first opening and a sealing assembly for sealing the first opening; the sealing assembly comprises a sealing piece and a bias pressure piece; the sealing piece is connected to the first opening in a sealing manner; the bias pressure piece is arranged in the accommodating cavity; and one end of the bias pressure piece is propped against the piston, and the other end of the bias pressure piece is propped against the sealing piece, so that the sealing piece covers the first opening in a sealing manner. According to the brake cylinder, the bias pressure piece is used for enabling the sealing piece to be propped against the inner wall of the cylinder body in the axial direction and the radial direction of the cylinder body respectively, and the piston is used for pushing brake fluid in the accommodating cavity to extrude the sealing piece in the axial direction and the radial direction of the cylinder body respectively, so that the sealing piece is propped against the inner wall of the cylinder body, and the brake fluid in the accommodating cavity is effectively prevented from leaking between the sealing piece and the inner wall of the cylinder body; and the sealing piece is not influenced by temperature, so that the sealing effect is good.

Description

technical field [0001] The invention relates to the technical field of vehicle brake systems, in particular to a brake cylinder and a brake system. Background technique [0002] At present, electrification and intelligence are the inevitable trends in the development of the automobile field. In the field of automobile chassis, the integrated braking system has become an indispensable system for the development of intelligent automobiles. The integrated braking system is a system involving mechanical, electronic and hydraulic fields, and integrates many hydraulic cylinders and oil circuits. Among them, the master cylinder of the integrated braking system is connected to the brake pedal. When the driver steps on the brake pedal to brake, the corresponding brake pressure will be established in the master cylinder, so the master cylinder must be kept sealed to prevent the brake fluid from leakage. [0003] At present, in the existing master cylinder, the tail of the master cyl...

AI Technical Summary

Problems solved by technology

[0003] At present, in the existing master cylinder, the tail of the master cylinder seals the master cylinder through a seal ring and a threaded fixed connection structure. This sealing structure is easily affected by temperature and there is a hidden danger of brake fluid leakage, resulting in the seal of the master cylinder. poor performance

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