Refrigeration circulating system and control method thereof

A technology of circulation system and control method, which is applied in the direction of heating and ventilation control system, heating and ventilation safety system, refrigerator, etc., can solve the problems that are not conducive to the protection of compressors, and achieve the effect that is beneficial to protection

Inactive Publication Date: 2006-07-26
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the compressor starts and stops repeatedly in a short

Method used

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  • Refrigeration circulating system and control method thereof
  • Refrigeration circulating system and control method thereof

Examples

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Example Embodiment

[0014] Fig. 1 is a schematic diagram showing the refrigeration cycle system of the present invention, and the present invention will be described below with reference to Fig. 1.

[0015] The refrigeration cycle system of the present invention includes a compressor 1, a condenser 2, a variable flow electromagnetic expansion valve 3, an evaporator 4, and a connecting pipe 5 connecting them to form a refrigeration cycle circuit. The refrigeration cycle system also includes a control device 6 for controlling the operation of the refrigeration cycle system, and a detection device 7 for detecting whether the compressor is abnormal. In the present invention, when the detecting device 7 detects that the compressor 1 is abnormal, it sends an error signal. The control device 6 receives the signal sent by the detection device 7, and when the error signal is received, it controls the compressor 1 to stop running, and restarts the compressor 1 after a predetermined time. When the compressor 1 ...

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Abstract

The invention relates to a refrigeration cycle system, which comprises a compressor, a condenser, an electromagnetic expansion valve with variable flux, a evaporator and the connection pipes connecting them to form a refrigeration cycle. The invention also comprises a detecting device for detecting the compressor, and when it detects the compressor is abnormal, it can send a wrong signal; a control device for stopping the compressor when receiving the wrong signal and starting the compressor after a preset time; the electromagnetic expansion valve can be opened more than before, when the compressor is started again. The invention can effectively improve the secondary starting condition of compressor, reduce the possibility of abnormal operation of compressor, prolong the normal operation time, apply a convenience environment of user, and apply the protection of compressor.

Description

technical field [0001] The present invention relates to a refrigerating cycle system and its control method, more specifically, the present invention relates to a refrigerating cycle system used in an air conditioning system and its control method. Background technique [0002] In the prior art, the refrigerating cycle system used in the air conditioning system basically includes a compressor, a condenser, a throttling device, an evaporator, and refrigerant pipes. Refrigerant pipes connect these components to form a refrigeration cycle. [0003] In some cases, the compressor may work abnormally, resulting in overload. For example, in summer, the indoor or outdoor temperature is very high, or the voltage is very low, or the heat dissipation of the heat exchanger is blocked, etc., resulting in an increase in the operating temperature of the compressor and a pressure exceeding the normal range. When the compressor works abnormally, for example, the operating temperature of th...

Claims

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Application Information

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IPC IPC(8): F25B49/02F24F11/02
Inventor 殷卫华张辛航包锡军
Owner PANASONIC CORP
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