Motor suspension

Abstract

The invention relates to a motor suspension. A core tube is arranged in a sheath in a hollow columnar shape or a hollow drum shape, and then the sheath, the core tube and resonance mass blocks which are arranged in the sheath and evenly distributed around the core tube are bonded into a whole through a rubber body, so that high-frequency vibration and high-frequency howling noise, especially high-frequency vibration and high-frequency howling noise 800 Hz or above, generated when an electric automobile driving motor suspended on a frame works can be effectively absorbed and blocked, comfortable vehicle using experience can be given to a driver and passengers of an electric automobile, driving fatigue can be relieved, and traveling safety can be ensured. According to the motor suspension, aresonant structure is formed by implanting the resonance mass blocks into the rubber body, and through self-vibration of the resonant structure, high-frequency hardening of the rubber body can be effectively relieved, the high-frequency dynamic stiffness of the rubber body can be reduced, so that the high-frequency vibration and high-frequency howling noise of the driving motor can be better lowered; and the motor suspension can be further applied to absorption and blocking of high-frequency vibration and high-frequency howling noise from different noise sources such as other motors and air compressors.

Description

technical field [0001] The invention relates to a motor mount, in particular to a motor mount for absorbing and blocking the high-frequency vibration and high-frequency howling noise, especially the high-frequency vibration above 800 Hz and the The invention discloses a motor mount with high-frequency whistling noise, belonging to the technical field of design and manufacture of electric vehicle accessories. Background technique [0002] With the development of the automobile industry and the improvement of environmental protection requirements, new energy vehicles, especially electric vehicles, have received more and more attention from various countries and automobile manufacturers, and their development has become faster and faster. [0003] The power of electric vehicles mainly or entirely comes from the drive motor installed on the frame. [0004] The driving motor installed on the frame of the electric vehicle will generate high-frequency vibration and high-frequency ...

AI Technical Summary

Problems solved by technology

[0011] However, although the motor mounts provided by the prior art have achieved certain effects, they are far from meeting people's desired requirements, especially for the high-frequency howling above 800 Hz emitted by the driving motor, which is powerless.

[0012] After researching the existing electric vehicle drive motor vibration damping mount, it is found that the motor mount provided by the prior art has a poor vibration reduction effect, especially for the high-frequency howling above 800 Hz emitted by the drive motor. The main reason is that the mount The high-frequency hardening of the rubber, because the existing technology cannot overcome the high-frequency hardening of the rubber in the suspension, and in order to ensure that the suspension can effectively support the drive motor, the rubber stiffness in the suspension cannot be made very low to absorb and resist off high frequency howling

[0013] Therefore, the electric vehicle drive motor mount provided by the prior art cannot effectively absorb and block the high-frequency vibration and high-frequency howling noise emitted by the driving motor, especially the high-frequency vibration and high-frequency howling noise above 800 Hz. The car has a good driving experience

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