Motor operation frequency adjustment method and apparatus

A technology of operating frequency and adjustment method, applied in the direction of suppressing motor vibration control, etc., can solve the problems of affecting the service life of the motor, affecting the user experience, and increasing the vibration of the whole machine, so as to improve the use experience, avoid the resonance phenomenon, and reduce the overall The effect of machine vibration

Inactive Publication Date: 2018-06-08
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Abstract
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Problems solved by technology

Resonance will increase the vibration of the whole machine and generate abnormal noise, which will not only affect the user experience, but also may cause motor failure in severe cases, affecting the service life of the motor

Method used

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  • Motor operation frequency adjustment method and apparatus
  • Motor operation frequency adjustment method and apparatus
  • Motor operation frequency adjustment method and apparatus

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Embodiment Construction

[0024] This embodiment first provides a method for adjusting the operating frequency of the motor, which can adjust that the operating frequency of the motor is not equal to the natural frequency of the motor, effectively avoid resonance phenomenon, reduce the vibration and noise of the motor, and improve the user experience. figure 1 It is a schematic diagram of a method for adjusting the operating frequency of a motor according to an embodiment of the present invention. The method for adjusting the operating frequency of a motor may perform the following steps:

[0025] Step S102, detecting the vibration amplitude of the motor by using a displacement sensor provided inside the motor;

[0026] Step S104, determine whether the vibration amplitude of the motor is greater than the preset amplitude, if so, go to step S106, if not, return to step S102;

[0027] In step S106, the input voltage of the motor is adjusted so that the running frequency of the motor is adjusted not to be...

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Abstract

The invention provides a motor operation frequency adjustment method and apparatus. The motor operation frequency adjustment method comprises the steps of detecting vibration amplitude of a motor by adisplacement sensor arranged in the motor; judging whether the vibration amplitude of the motor is greater than a preset amplitude or not; and if so, adjusting the input voltage of the motor so as toadjust the operating frequency of the motor not to equal to the inherent frequency of the motor. By virtue of the scheme disclosed in the invention, occurrence of a resonance phenomenon can be avoided effectively, the overall vibration and noise of the motor can be lowered, and user experience can be improved; and meanwhile, the whole detection and adjustment process is completed automatically, so that the overall vibration of the motor is greatly lowered, and the service life of the motor can be prolonged effectively.

Description

technical field [0001] The present invention relates to the technical field of motors, in particular to a method and device for adjusting the operating frequency of a motor. Background technique [0002] With the development of society and the continuous improvement of people's living standards, air conditioners have become one of the indispensable electrical equipment in people's daily life. Air conditioners can help people reach a temperature they can adapt to when the ambient temperature is too high or too low. [0003] The fan of the air conditioner can realize ventilation and ventilation, and can play the role of heat dissipation when the air conditioner is refrigerating. As an important part of the fan, the motor can drive the fan to work. At present, during the operation of the motor of the air conditioner, the problem that the operating frequency is equal to the natural frequency often occurs and resonance occurs. Resonance will increase the vibration of the whole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/04
CPCH02P23/04
Inventor 吕静静王鹏臣张飞魏学帅
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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