Damping device of electric vacuum pump of new energy vehicle

Abstract

The invention relates to a damping device of an electric vacuum pump of a new energy vehicle. The damping device comprises a vacuum pump and a fixing bracket, wherein a cylinder body is arranged on the vacuum pump; a piston which is in sliding connection with the cylinder body is arranged on the fixing bracket; a magnetic guiding structure is arranged in the piston; the cylinder body is separatedby the piston to form two accommodating cavities; the accommodating cavities are filled with magnetic rheological fluid; and a guiding hole for communicating with the two accommodating cavities is formed in the piston. Through the adoption of the damping device disclosed by the invention, the problems that in the prior art, the vacuum pump is in bolt connection with the fixing bracket, and the bolt connection is rigid connection, so that a great deal of vibration and noise can be generated, and the service life and the using performance of the vacuum pump are greatly reduced can be solved; andthe problem that the bolts easily become invalid and are loosened easily, so that occurrence of accidents is possibly generated is solved. The electromagnetic damping device of the electric vacuum pump provided by the invention can realize effective shock absorption.

Description

technical field [0001] The invention relates to the technical field of electric vacuum pumps, and in particular designs a shock absorbing device for electric vacuum pumps of new energy vehicles. Background technique [0002] Vacuum pumps are widely used in automobiles, construction machinery and other fields. For example, the Chinese publication number is CN207598455U, and the publication date is July 10, 2018. The name of the invention is an electric vacuum pump that is easy to carry. This application discloses an electric vacuum pump that is easy to carry, including the vacuum pump body. Both sides of the vacuum pump body are fixedly connected with fixed blocks, and the bottom of the fixed block is provided with a card slot, and a card block is clipped in the card slot, and the bottom end of the card block extends to the outside of the card slot and is fixedly connected with a connection Block 1, the top of the connecting block 1 away from the vacuum pump body is fixedly ...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem of using bolt connection between the vacuum pump and the fixed support in the prior art. Since the bolt connection is a rigid connection, a large amount of vibration and noise will be generated, which greatly reduces the service life and performance of the vacuum pump, and the bolts are also prone to failure and Looseness may cause accidents, and an electromagnetic damping device for electric vacuum pumps is provided, which can achieve effective shock absorption

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