Brake assembly suitable for hub motor

Abstract

The invention discloses a brake assembly suitable for a hub motor. The brake assembly is characterized by comprising an inner buckle type annular brake disc, opposite calipers and a hub motor shell, wherein the inner buckle type annular brake disc is provided with an inner brake disc body, an outer brake disc body and a connecting arm, the radial outer end of the inner brake disc body and the radial outer end of the outer brake disc body are connected through the connecting arm, the hub motor shell is connected with the outer brake disc body, the opposite calipers extend inwards in the radialdirection to form lugs used for being connected with a chassis component, the opposite calipers comprise a first caliper body and a second caliper body, the first caliper body is arranged on the innerside of the inner brake disc body, the second caliper body is arranged in a cavity between the inner brake disc body and the outer brake disc body, the first caliper body is provided with a first piston and a first friction plate, the second caliper body is provided with a second piston and a second friction plate, the first piston and the second piston are oppositely distributed on the inner side and the outer side of the inner brake disc body, and the second friction plate and the first friction plate cooperate with each other to clamp the inner brake disc body for braking, so that the stability of an opposite caliper assembly in the dynamic operation and braking process is kept.

Description

technical field [0001] The invention relates to a brake for a new energy vehicle, in particular to a brake assembly suitable for a hub motor. Background technique [0002] With the popularization of new energy vehicles, in-wheel motors are one of the important components in the development of new energy vehicles. The hub motor is a motor assembly designed to integrate the power system, transmission system and braking system of the car. [0003] Since the hub motor uses a traditional one-piece caliper, the two ends of the jaws of the caliper body are closed, so it cannot be installed from the inside of the brake disc. In the prior art, a floating caliper is generally used, but there is a brake deviation Grinding, rapid changes in the thickness difference of the brake disc, abnormal noise, overheating of the hub motor, etc. Contents of the invention [0004] In view of the technical problems existing in the background technology, the technical problem solved by the present...

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Problems solved by technology

[0003] Since the wheel hub motor uses a traditional one-piece caliper, the two ends of the jaws of the caliper body are closed, so it cannot be installed from the inside of the brake disc. In the prior art, a floating caliper is generally used, but there is a brake bias Grinding, rapid change in the thickness difference of the brake disc, abnormal noise, overheating of the hub motor, etc.

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