A gear brake actuator for new energy vehicles

Abstract

The invention discloses a gear type braking execution device for a new energy vehicle and aims to overcome the defects that an existing vehicle braking system cannot realize active braking and is relatively slow in braking response. The gear type braking execution device comprises a plier body, a casing connected with the plier body, a driving block and a friction piece connected with the drivingblock; a rotating shaft is mounted in the casing; a gear is mounted on the rotating shaft and is in transmission connection with a braking motor; the rotating shaft is glidingly sleeved with a threaded sleeve; the threaded sleeve and the rotating shaft are in anti-rotating connection; a mounting cavity is formed in the casing; the threaded sleeve is in threaded connection with a guide plate; positioning springs and a plurality of positioning blocks are mounted on two sides of the guide plate in the mounting cavity; the positioning blocks are connected onto the inner wall of the mounting cavity; one end of the threaded sleeve abuts against the driving block; a cylinder block is arranged on the casing; a bulging piston ring is arranged on the driving block and is inserted in the cylinder block in a sealed manner; and an electromagnet and the braking motor are electrically connected with a vehicle control unit.

Description

technical field [0001] The present invention relates to an automobile brake structure, more specifically, it relates to a gear type brake actuator for new energy vehicles. Background technique [0002] In the traditional braking system, braking is achieved by the driver applying force on the brake pedal, which is amplified by the vacuum booster system and converted into hydraulic pressure, which acts on the brake to achieve braking. The vacuum booster system currently used in automobiles is composed of a vacuum booster with a brake master cylinder, a vacuum tank, a vacuum pump, and a vacuum tube. The vacuum booster with a brake master cylinder uses the pressure difference between the vacuum and the atmosphere to apply pressure on the driver The braking force on the plate is amplified, and this force is transmitted to the brake master cylinder to establish hydraulic pressure to realize the transformation from pedal force to hydraulic pressure, and the brake fluid transmits th...

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the shortcomings of the existing automobile braking system that cannot realize active braking and slow braking response, and provides a gear type braking actuator for new energy vehicles, which can realize active braking and braking response Fast, smooth and reliable braking

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