Two-stage vibration reduction mount device for electric vehicle

Abstract

The invention relates to the technical field of electric vehicle parts and discloses a two-stage vibration reduction mount device for an electric vehicle. The two-stage vibration reduction mount device comprises a hollow cylindrical outer framework with a bottom surface, wherein a mounting and connecting bracket is arranged at the outer side wall of the outer framework; vibration reduction rubberbushings are sheathed and connected in the inner cavity of the outer framework; the vibration reduction rubber bushings comprise a first-stage vibration reduction rubber bushing and a second-stage vibration reduction rubber bushing; the second-stage vibration reduction rubber bushing is in the shape of a cylinder which cooperates with the inner cavity of the outer framework; the second-stage vibration reduction rubber bushing is provided with an insertion hole penetrating through the upper end surface and the lower end surface; the second-stage vibration reduction rubber bushing is also provided with a ring-shaped insertion ring penetrating through the upper end surface and the lower end surface; the first-stage vibration reduction rubber bushing is in inserted connection with the second-stage vibration reduction rubber bushing through the insertion ring; the insertion hole is arranged inside the insertion ring; a connecting bracket is inserted and connected in the insertion hole; andone end of the connecting bracket is connected to a powertrain. The two-stage vibration reduction mount device for the electric vehicle is provided with a plurality of vibration reduction inner bushings and has the advantages of isolating low-frequency vibration, isolating high-frequency vibration and realizing a good use and experience effect.

Description

technical field [0001] The invention relates to the technical field of electric vehicle components, in particular to a two-stage vibration-damping suspension device for electric vehicles. Background technique [0002] The powertrain itself is an internal source of vibration. At the same time, it is disturbed by various vibrations from the outside, making it in a complex vibration state, causing damage to surrounding parts and uncomfortable rides. People use rubber to isolate vibration. It has gradually evolved to design mounts to isolate and attenuate the vibration transmission of the powertrain. At present, mounts are single-layer vibration isolation, which can only isolate low-frequency vibrations, but cannot isolate high-frequency vibrations. For example: Chinese Patent Application Publication No. CN 102011831A, the application announcement date is April 13, 2011, the name of the invention is the electric vehicle motor left suspension vibration damping device, which inclu...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems in the prior art that there is only one layer of vibration-damping inner sleeve, only low-frequency vibration can be isolated, high-frequency vibration cannot be isolated, and the user experience is not good, the present invention provides a multi-layer vibration-damping inner sleeve. , Not only can isolate low-frequency vibration, but also isolate high-frequency vibration, and the two-stage vibration-damping suspension device for electric vehicles with good user experience

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