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Low wind noise motor

A wind noise and chassis technology, applied in the direction of electromechanical devices, electrical components, mechanical equipment, etc., can solve the problems of large eddy currents of cooling fans, affecting the surrounding environment, affecting the efficiency of motors, etc., to reduce wind consumption and reduce aerodynamic noise. Effect

Inactive Publication Date: 2012-12-26
SHANGHAI TOP MOTOR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to control the temperature rise of the motor within a certain range, the cooling fan of the existing motor is designed with a large outer diameter and blade width. Therefore, when the existing motor is running, the eddy current generated by the blade of the cooling fan The sound is also very loud, which not only affects the surrounding environment, but also affects the efficiency of the motor

Method used

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Embodiment Construction

[0015] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0016] Such as figure 1 As shown, a low wind noise motor provided by the embodiment of the present invention includes a casing, and a stator, a rotor, and a cooling fan respectively installed in the casing, and is characterized in that:

[0017] The aspect ratio of the cooling fan is:

[0018]

[0019] Wherein, b is the width of the fan blade 1 of the cooling fan, and D is the outer diameter of the cooling fan, The value of is between 0.1 and 0.5.

[0020] In the embodiment of the present invention, the casing is provided with an air inlet and an air outlet, the air inlet is located on the air inlet side of the cooling f...

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Abstract

The invention provides a low wind motor and relates to the technical field of a motor. The low wind noise motor is capable of solving the technical problem of reducing wind noise. The low wind noise motor comprises a shell, a stator, a rotor, and a cooling fan, wherein the stator, the rotor and the cooling fan are disposed in the shell. The low wind noise motor is characterized in that the width diameter ratio value of the cooling fan is 0.1-0.5. The low wind noise motor is low in aerodynamic noise.

Description

technical field [0001] The invention relates to motor technology, in particular to a low wind noise motor technology. Background technique [0002] When the motor is running, the aerodynamic noise generated by the cooling fan on the motor is divided into two aspects: blade resonance sound and eddy current sound. [0003] The blade resonance sound produced by the cooling fan must be eliminated first, and it is generally easy to eliminate, while the frequency band of the eddy current sound is wide, and the noise level depends on the structural parameters of the fan, such as the structural shape, size, and the area of ​​the air inlet and outlet. [0004] In order to control the temperature rise of the motor within a certain range, the cooling fan of the existing motor is designed with a large outer diameter and blade width. Therefore, when the existing motor is running, the eddy current generated by the blade of the cooling fan The sound is also very loud, which not only affec...

Claims

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Application Information

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IPC IPC(8): H02K9/04F04D29/26F04D29/66
Inventor 陈业绍
Owner SHANGHAI TOP MOTOR