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Low-noise electric vehicle motor end cover

A technology for noisy electric vehicles and motor end caps, applied in electric vehicles, motors, electric components, etc., can solve problems such as affecting user experience, large radiated noise, passenger discomfort, etc., to improve noise comfort and reduce high-frequency radiated noise. , The effect of reducing high-frequency noise in the car

Inactive Publication Date: 2021-03-30
FAW CAR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although electric vehicles do not have the working noise of the engine, other noises are easier to recognize in a relatively quiet environment
Especially during the acceleration process, the high-frequency noise when the motor speed is high can easily cause discomfort to passengers and seriously affect the user experience
At present, the more common optimization method is to add acoustic wrapping to the motor, but the traditional motor end cover structure is stamped and formed with a single material, and there is still relatively large radiation noise at its weak position

Method used

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  • Low-noise electric vehicle motor end cover
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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0017] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention belongs to the technical field of electric vehicle motor end covers, and particularly relates to a low-noise electric vehicle motor end cover. The end cover comprises an end cover body,the end cover body comprises a top layer, a middle layer and a bottom layer, the top layer and the bottom layer are both made of metal materials, the middle layer is made of damping materials, and thethree layers are sequentially fixed together. High-frequency noise of a motor in the vehicle can be reduced.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle motor end covers, and in particular relates to a low-noise electric vehicle motor end cover. Background technique [0002] With the rise of the new energy industry, electric vehicles have become the development trend of future automobiles. Although electric vehicles do not have the working noise of the engine, other noises are easier to recognize in a relatively quiet environment. Especially during the acceleration process, the high-frequency noise when the motor speed is high can easily cause discomfort to passengers and seriously affect the user experience. At present, the more common optimization method is to add acoustic wrapping to the motor, but the traditional motor end cover structure is stamped and formed with a single material, and there is still relatively large radiation noise at its weak position. Contents of the invention [0003] In order to overcome the above problems,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/24H02K5/02
CPCH02K5/24H02K5/02Y02T10/64
Inventor 汪鹏马一鸣刘驰
Owner FAW CAR CO LTD
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