Auxiliary groove structure for suppressing vibration noise of vehicle permanent magnet synchronous motor

Abstract

The invention discloses an auxiliary groove structure for suppressing vibration noise of a vehicle permanent magnet synchronous motor. The auxiliary groove structure comprises a groove body, a bufferassembly, a first noise reduction assembly and a second noise reduction assembly, the lower surface of the groove body is fixedly connected with a support, the right end of the outer surface of the groove body is fixedly connected with a first flange, and the left side face in the groove body is fixedly connected with a buffer pad; a second flange is arranged at the front end of the outer surfaceof an end cover, the second flange is fixedly connected with the first flange through a bolt, a mounting hole is formed in the middle of the end cover, and a cooling fan is mounted in the mounting hole; the buffer assembly is fixedly connected to the inner bottom surface of the groove body, and the upper surface of the buffer component is fixedly connected with a motor, the auxiliary groove structure for suppressing the vibration noise of the permanent magnet synchronous motor for the vehicle has the advantages that the vibration of the motor is reduced, the noise reduction is performed through multiple noise reduction measures, the effect is obvious, in addition, the heat on the surface of the motor can be fast transferred out, the heat dissipation efficiency is improved, the aging of internal elements is delayed, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to an auxiliary groove structure for suppressing vibration and noise of permanent magnet synchronous motors for vehicles. Background technique [0002] The two major problems facing the sustainable development of the automobile industry at present are: environmental pollution, lack of oil resources, automobile exhaust pollution, noise, and fire hazards in fuel storage, which have attracted more and more attention. Environmental protection and energy saving are two An important development direction of automobile technology in the eleventh century, electric vehicles have become a new generation of clean energy vehicles, in which the drive motor and transmission system are the heart of electric vehicles, and the motor is the core of the drive system. The comprehensive performance of the motor directly affects the performance of electric vehicles. At present...

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Problems solved by technology

[0002] The two major problems facing the sustainable development of the automobile industry at present are: environmental pollution, lack of oil resources, automobile exhaust pollution, noise, and fire hazards in fuel storage, which have attracted more and more attention. Environmental protection and energy saving are two An important development direction of automobile technology in the eleventh century, electric vehicles have become a new generation of clean energy vehicles, in which the drive motor and transmission system are the heart of electric vehicles, and the motor is the core of the drive system. The comprehensive performance of the motor directly affects the performance of electric vehicles. At present, the driving motor for electric vehicles restricts the research and development and industrialization process of electric vehicles in China. At present, permanent magnet brushless DC motors are being developed at home and abroad. Large torque fluctuations affect the high-efficiency, high-precision, high-speed and stable operation of the motor. However, the existing permanent magnet brushless DC motor still has a certain amount of noise during use, which affects the use experience of the car and causes the user to use it. The process affects the overall performance evaluation of the car, and then affects the market share. The common method is to use sound-absorbing cotton for sound insulation and noise reduction, but the function is single, the noise reduction effect is poor, and the scope of application is narrow. Solve the above-mentioned problems by using the auxiliary groove structure of vibration noise of permanent magnet synchronous motor

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