Bush-type hydraulic mount

The bush-type fluid mount enhances axial characteristics in electric vehicles by incorporating a deformable bridge between fluid chambers, addressing vibration issues and reducing cost and weight, thus improving aftershock sensitivity and assembly efficiency.

KR103000895B1Active Publication Date: 2026-08-05HYUNDAI MOTOR CO LTD +1
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Patent Information

Application Number
KR1020210029222
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-03-05
Publication Date
2026-08-05
Estimated Expiration
2041-03-05

AI Technical Summary

Technical Problem

Bush-type rubber mounts in electric vehicles have low axial characteristics, leading to increased axial movement and severe vibration when passing over plastic protrusions, necessitating additional mount points that increase cost, volume, and assembly complexity.

Method used

A bush-type fluid mount with an inner pipe, intermediate pipe, and outer pipe, featuring a main rubber with front and rear fluid chambers separated by a deformable bridge, allowing for axial damping and minimizing weight and cost through a minimal part addition.

Benefits of technology

Improves axial characteristics, reduces aftershock sensation, and maintains durability by adding axial damping without increasing weight or cost, while optimizing motor mounting systems.

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Abstract

The present invention relates to a vehicle mount, and more specifically, to a bushing-type fluid mount applied to the mounting of a motor module of an electric vehicle. The bushing-type fluid mount according to the present invention comprises: an inner pipe; an intermediate pipe arranged concentrically with the inner pipe; a main rubber vulcanized between the inner pipe and the intermediate pipe; and an outer pipe surrounding the intermediate pipe, wherein the main rubber comprises: a front fluid chamber recessed radially from the surface; a rear fluid chamber adjacent to the front fluid chamber and recessed radially from the surface; and a bridge that separates the front fluid chamber and the rear fluid chamber so as to be fluidly communicable and is deformable by an external force.
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