Frequency control method for a variable frequency refrigerator

A frequency control and frequency conversion refrigerator technology, applied in household refrigeration devices, lighting and heating equipment, household appliances, etc., can solve the problems of failure to save energy and the compressor running state is not the best, and achieve the effect of increasing the evaporating temperature

Active Publication Date: 2014-11-19
HISENSE RONSHEN GUANGDONG REFRIGERATOR
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  • Description
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Problems solved by technology

These frequency change requirements are designed in advance. If the actual environment of the refrigerator is not within the design range, the operating state of the compr

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  • Frequency control method for a variable frequency refrigerator
  • Frequency control method for a variable frequency refrigerator

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[0026] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0027] Such as figure 1 , 2 As shown, the frequency control method of the frequency conversion refrigerator, which includes the following steps:

[0028] S1. The variable frequency compressor 1 runs according to the set frequency, and the variable frequency compressor 1 stops after the set startup time T after the variable frequency compressor 1 runs;

[0029] S2. Inverter compress...

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Abstract

The invention relates to the technical field of refrigerators, in particular to a frequency control method for a variable frequency refrigerator. The frequency control method includes the steps: S1, a variable frequency compressor runs under a set frequency and stops after running for a set on time T; S2, the variable frequency compressor waits for a set off time K and starts; S3, an on-rate, N=T/(T+K), is set; S4, after running for an actual on time t, the variable frequency compressor stops, and after waiting for an actual off time k, the variable frequency compressor starts, and an actual on-rate, n=t/(t+k), is set; S5, comparison on the set on-rate N and the actual on-rate n is made, if the actual on-rate n is smaller than the set on-rate N, the variable frequency compressor runs under a lower frequency next time, and the variable frequency compressor is at a lower speed; if the actual on-rate n is larger than the set on-rate N, the fact that the variable frequency compressor is poor in refrigerating capacity is judged, the variable frequency compressor runs under the higher frequency next time, and the variable frequency compressor is at a higher speed.

Description

technical field [0001] The present invention relates to the technical field of refrigerators, and more specifically, to a frequency control method of a variable frequency refrigerator. Background technique [0002] At present, due to the requirements of energy saving, more and more frequency conversion refrigerators are used. The energy saving of frequency conversion refrigerators is mainly due to the small cooling capacity of the compressor at low frequency, and the efficiency of the compressor does not change much. When the refrigerating capacity of the compressor is small, since the refrigerating system such as the evaporator does not change, the evaporating temperature rises and the condensing temperature decreases, so that the actual refrigeration efficiency of the compressor is improved, and the refrigerator saves energy. When the heat load required by the refrigerator is large, the compressor can use a higher frequency to increase the rotation speed of the motor, so ...

Claims

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Application Information

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IPC IPC(8): F25D29/00
Inventor 李成武李宇姚飞
Owner HISENSE RONSHEN GUANGDONG REFRIGERATOR
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