Electronic mechanical brake

Abstract

The invention discloses an electronic mechanical brake, and belongs to the technical field of automobile braking. The electronic mechanical brake comprises a shell, a ball screw structure and a piston. A clamp is arranged on one side of the shell and comprises two clamping claws capable of oppositely moving; each of the two clamping claws is provided with a friction plate, the two friction platesare right opposite to each other, and a penetration cylinder hole is formed in the other side of the shell. The ball screw structure is arranged in the cylinder hole and comprises a screw, a nut and aplurality of steel balls, one end of the screw penetrates out of the cylinder hole and is in driving connection with an executer, the nut can movably sleeve the outer side wall of the screw in the length direction of the screw, two clamping and connecting tables are arranged on the outer side of the nut, and the multiple steel balls are arranged between the nut and the screw. The piston is arranged in the cylinder hole, one end of the piston is connected with one clamping claw, and the other end of the piston movably makes contact with the nut in the screw length direction. According to the provided electronic mechanical brake, the structure is simplified, the integral size is reduced, and the braking efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to an electromechanical brake. Background technique [0002] At present, with the development of automobile types, such as hybrid electric vehicles and electric vehicles that have appeared on the market today, the automobile braking system still adopts the traditional hydraulic braking technology. Although the hydraulic braking system is very mature and has high reliability, its hydraulic system pipeline is complicated, and the vacuum booster will occupy a considerable volume. That said, the hydraulic brake system, which takes up more space, is a bigger nuisance. At the same time, the hydraulic system itself also has defects such as brake fluid leakage and pollution. [0003] The electronic mechanical brake (EMB) with wire control is a good solution to the above problems. The electromechanical brake uses electric energy as the energy source, transmits electric energy t...

AI Technical Summary

Problems solved by technology

Among them, the U.S. patent No. US6158558 applied for an electromechanical brake. The electromechanical brake of this structure puts parts such as motors and gears into the brake housing without additional actuators, but its structure is relatively Complicated, the volume of the brake is also large

At present, most of the existing electromechanical brake device designs have not been successfully applied to real life due to the complexity of the structure, the large size, or the difficulty in manufacturing and assembling.

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