Control method for frequency conversion compressor and refrigerator

A variable frequency compressor and control method technology, applied in the field of compressors, can solve the problems of low refrigeration efficiency, high noise, energy waste, etc., and achieve the effects of saving energy, reducing noise, and improving adaptability

Active Publication Date: 2016-01-27
TCL INTELLIGENT TECH HEFEI
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for controlling an inverter compressor and a refrigerator, aiming to

Method used

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  • Control method for frequency conversion compressor and refrigerator
  • Control method for frequency conversion compressor and refrigerator
  • Control method for frequency conversion compressor and refrigerator

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no. 1 example

[0078] Further, refer to figure 2 , figure 2 It is a schematic flowchart of the second embodiment of the control method of the inverter compressor of the present invention. Based on the first embodiment of the variable frequency compressor control method of the present invention, in the embodiment, the variable frequency compressor control method further includes:

[0079] Step S210, when the compressor is turned on for the first time after defrosting, according to the compressor rotation speed and the adjustment ratio of the compressor rotation speed in the previous start-stop period when defrosting starts, calculate the first time the compressor starts after defrosting. The rotation speed of the compressor when starting up, and control the operation of the compressor according to the rotation speed of the compressor.

[0080] Generally, defrosting treatment is required during the operation of the refrigeration equipment. For example, when the refrigerator is performing d...

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Abstract

The invention discloses a control method for a frequency conversion compressor. The method includes the steps that when the rotation speed of the compressor needs to be adjusted, the average value of start rates corresponding to all start and stop periods of the compressor is calculated before the rotation speed of the compressor is adjusted, and the average start rate is acquired; according to the average start rate and a preset compressor target start rate corresponding to the current environment temperature, the adjusting proportion of the rotation speed of the compressor is calculated; according to the adjusting proportion of the rotation speed of the compressor and the rotation speed of the compressor in the start and stop period before the rotation speed of the compressor is adjusted, the adjusted rotation speed of the compressor is calculated; and according to the adjusted rotation speed of the compressor, the compressor is controlled to operate. The invention further discloses a refrigerator adopting the control method for the frequency conversion compressor to achieve the frequency conversion function. Through the control over the rotation speed of the compressor, the start duration and the stop duration of the compressor can be effectively controlled, and the beneficial effects that noise is lowered and energy is saved can be achieved.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a method for controlling a variable frequency compressor and a refrigerator. Background technique [0002] Inverter refrigeration equipment currently on the market, such as inverter refrigerators, inverter air conditioners, etc., most of the compressor frequency control methods only divide the compressor speed into different gears for different ambient temperatures and different refrigeration needs, so that the compressor can run The frequency is determined by the current ambient temperature and cooling demand temperature. For example, when the difference between the ambient temperature and the cooling demand temperature increases, the operating frequency of the compressor increases accordingly, so that the compressor speed increases; when the difference between the ambient temperature and the cooling demand temperature decreases, The operating frequency of the compressor is correspon...

Claims

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Application Information

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IPC IPC(8): F25D29/00
Inventor 曹洁
Owner TCL INTELLIGENT TECH HEFEI
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