Compact noise-reducing automotive electronic parking mechanism

By introducing a bracket and sound insulation cavity design into the electronic parking mechanism, combined with an oil slinger component to achieve circulating lubrication of lubricating oil, the problems of vibration and noise caused by unrestricted shaft system are solved, and the stability of the shaft system and noise reduction are achieved.

CN120739816BActive Publication Date: 2026-06-02浙江汇轩汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
浙江汇轩汽车零部件有限公司
Filing Date
2025-07-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing electronic parking brake mechanism does not effectively restrict the shaft system when operating at high speed, resulting in shaft runout and friction noise. Insufficient lubrication also leads to mechanical wear and noise problems.

Method used

A compact noise reduction structure including a housing, a support, and a sound insulation cavity was designed. Through the combination of a primary meshing mechanism and a secondary meshing mechanism, the lubricating oil circulation lubrication is achieved by using an oil slinger assembly. Sound insulation measures are set in the support and the sound insulation cavity to limit the movement of the shaft system and reduce noise.

Benefits of technology

It effectively limits shaft runout, reduces mechanical wear and noise, and improves operational stability and noise isolation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120739816B_ABST
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Abstract

The application provides a compact noise reduction automobile electronic parking mechanism and relates to the field of automobile parking components. The compact noise reduction automobile electronic parking mechanism comprises a shell, an upper end cover and a motor, the motor is fixed at the bottom of the shell, further comprises a support fixedly installed in the shell, a sealed sound insulation cavity is formed between the upper portion of the support and the shell and the upper end cover, further comprises a first engaging mechanism and a second engaging mechanism installed at the bottom of the support, motor power is transmitted to the second engaging mechanism through the first engaging mechanism and finally output, corresponding to the first engaging mechanism below the sound insulation cavity, further comprises an oil throwing assembly installed on the output shaft of the motor. The compact noise reduction automobile electronic parking mechanism, because of the setting of the support and the intermediate layer, the first engaging mechanism and the second engaging mechanism are coaxial, both ends of any shaft are limited, and the problem of jumping does not occur during instantaneous operation, and the damage rate of a single bearing is relatively low after long-term use.
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