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Compressor speed regulating method, device and air conditioning equipment

A speed regulation method and a technology of a speed regulation device, which are applied in the field of devices, air conditioning equipment, and compressor speed regulation methods, and can solve the problems of difficult start-up of the compressor of the air conditioner, high voltage requirements of the air conditioner, and large heating of the internal winding of the compressor to improve energy efficiency, realize seamless switching, and avoid frequent start and stop

Inactive Publication Date: 2012-08-15
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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AI Technical Summary

Problems solved by technology

However, because the internal electrical structure of the existing fixed-speed compressor cannot adapt to the fluctuation of the power supply voltage, it can only operate at the rated voltage and rated speed, so the air conditioner has higher requirements on the voltage.
Unstable voltage will have a very adverse effect on the start-up and operation of the air conditioner
[0003] It is very common for the voltage of the power grid to fluctuate slightly, especially the voltage of the rural power grid in my country is very unstable, sometimes high and sometimes low, and when the grid voltage is lower than 180V, it is difficult for the compressor of the air conditioner to start
Therefore, when the air conditioner is running, if the grid voltage is too low, it will cause excessive heating of the winding in the compressor, and in severe cases, the compressor will be burned

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  • Compressor speed regulating method, device and air conditioning equipment
  • Compressor speed regulating method, device and air conditioning equipment
  • Compressor speed regulating method, device and air conditioning equipment

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The invention proposes a compressor speed regulation method. The compressor is a speed-adjustable compressor used in an air conditioner, and its speed can have three gears: high, medium and low. By setting the first winding, the second winding and the third winding with resistance values ​​from large to small at the running winding end of the compressor, the first relay connects and controls the first winding, and the second relay connects and controls The second winding and the third relay are connected to and control the third winding, wherein the first relay corresponds to the high-speed gear, the second relay corresponds to the middle-speed gear, and the t...

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Abstract

The invention relates to a compressor speed regulating method. The compressor speed regulating method includes detecting a power voltage value before a compressor is started; controlling the compressor to be started at a high-speed gear when the power voltage value is larger than or equal to a preset starting voltage value; and controlling the compressor to be started at a low-speed gear when the power voltage value is smaller than the starting voltage value. By means of detecting power voltage and starting the compressor at the selected gear according to the power voltage, on the one hand, the compressor is more easily started at a low-voltage state, and on the other hand, the compressor can run normally at a high-voltage state. The invention further relates to a compressor speed regulating device and air conditioning equipment.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a compressor speed regulating method, device and air conditioning equipment. Background technique [0002] With the development of science and technology and economy, air conditioners have gradually become an essential household appliance and are popularized. However, because the internal electrical structure of the existing fixed-speed compressor cannot adapt to the fluctuation of the power supply voltage, it can only operate at the rated voltage and rated speed, so the air conditioner has higher requirements on the voltage. Unstable voltage will have a very adverse effect on the start-up and operation of the air conditioner. [0003] It is very common for the voltage of the power grid to fluctuate in a small range, especially the voltage of the rural power grid in my country is very unstable, sometimes high and sometimes low, and when the grid voltage is lower than 18...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F24F11/02F25B49/02
Inventor 李庆坚黄永毅李清杰
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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