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Method for controlling frequency conversion of frequency conversion refrigerator

A frequency conversion control and frequency conversion refrigerator technology, which is used in household refrigeration devices, lighting and heating equipment, household appliances, etc., can solve the problems of complex structure and control methods, and achieve the effects of improving the preservation function, reducing noise, and reducing power consumption.

Active Publication Date: 2009-09-30
HAIER GRP CORP +1
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  • Abstract
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Problems solved by technology

This patent is aimed at the control method of frequency conversion dual-system or multi-system direct-cooling refrigerators, requiring a relatively complicated structure and control method

Method used

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  • Method for controlling frequency conversion of frequency conversion refrigerator

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Embodiment

[0044] 1. When the compressor restarts after energy-saving shutdown, the compressor speed is the highest speed of 4500RPM (square wave frequency 155Hz), the running time is 15 seconds, and then enters the corresponding compressor speed operation according to the relationship between the shutdown point and the actual temperature of the refrigeration sensor , during normal operation, the actual temperature of the entering freezing sensor is used as the benchmark. If the temperature is increased by 1 degree, the speed will be increased by 1 gear until 155HZ, and the temperature will be lowered by 1 degree, and the speed will be decreased by 1 gear until 65Hz.

[0045] Both run at 155Hz in the first cycle after power-off and power-on and normal defrosting until shutdown.

[0046] 2. When the compressor runs continuously for 1 hour, and a frequency reaches 55%, the speed will automatically increase by 1 gear until it stops; it will enter the gear after the next startup, but if the d...

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Abstract

The invention discloses a method for controlling frequency conversion of a frequency conversion refrigerator. The frequency conversion refrigerator comprises a main control panel, a freezing sensor and a compressor; the method comprises the following steps that: firstly, the compressor starts up; before that, the compressor is inactive, and three reasons cause the shutoff: non-electrification, energy-saving shutoff and shutoff in defrosting stage; therefore, when the compressor starts up, the main control panel judges whether the compressor is started after power off and electrification, after energy-saving shutoff in operation or after defrosting; and according to different situations, the compressor enters different control steps. The frequency conversion technology fully realizes the accurate control of the temperature of the refrigerator, improves the fresh-keeping function of food and greatly reduces the power consumption of the refrigerator; the method also effectively reduces noise; and in particular, the refrigerator can automatically find the lowest rotating speed in operation at nighttime so as to achieve the effect of reducing noise.

Description

technical field [0001] The invention relates to a control method of a refrigerator, in particular to a frequency conversion control method of a frequency conversion refrigerator. Background technique [0002] Refrigerators are widely used household appliances. In recent years, with the development of microelectronics technology, sensor technology and control theory, they have shown a trend of rapid development. The direction of humanization is developing, so the traditional mechanical and electronic control of eggs cannot meet the development requirements of modern refrigerators. Refrigerators generally have a freezer and a refrigerator; the temperature of the freezer is -16°C to -24°C. The temperature of the refrigerator is between 2°C and 8°C. [0003] The main task of refrigerator control is to maintain the optimum temperature of the food in the box to achieve the purpose of food preservation. Because the temperature in the refrigerator is affected by many uncertain fa...

Claims

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Application Information

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IPC IPC(8): F25D29/00
Inventor 王东宁张奎刘建如王建任伟王宁赵明华
Owner HAIER GRP CORP
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