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Refrigerant filling assembly and refrigerant filling method for air conditioner

An air conditioner and refrigerant technology, applied in the direction of refrigeration components, applications, refrigerators, etc., can solve the problems of air conditioner system performance degradation, errors, etc.

Active Publication Date: 2016-12-21
珠海格力机电工程有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a refrigerant filling assembly and a refrigerant filling method for an air conditioner, so as to solve the problem in the prior art that the performance of the air conditioner system is degraded due to errors caused by manual filling of refrigerant

Method used

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  • Refrigerant filling assembly and refrigerant filling method for air conditioner
  • Refrigerant filling assembly and refrigerant filling method for air conditioner
  • Refrigerant filling assembly and refrigerant filling method for air conditioner

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no. 1 example

[0022] Such as figure 2 As shown, the present invention provides the first embodiment of the refrigerant injection method, and the refrigerant injection method in this embodiment includes the following steps:

[0023] S2: Detect the liquid pipe pressure, liquid pipe temperature and ambient temperature of the air conditioner during the refrigerant filling process;

[0024] S4: Obtain the corresponding saturation temperature through the liquid pipe pressure, subtract the liquid pipe temperature from the saturation temperature to obtain the detected subcooling degree of the air conditioner system, and select the corresponding standard subcooling degree from the ambient temperature-standard subcooling degree comparison table according to the ambient temperature Spend;

[0025] S6: Comparing the difference between the detected subcooling degree and the standard subcooling degree with a predetermined value range, and stopping refrigerant injection when the difference falls within ...

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Abstract

The present invention provides a refrigerant filling assembly for an air conditioner and a refrigerant filling method, wherein the refrigerant filling assembly for an air conditioner includes: a refrigerant supply pipeline, a first valve is arranged on the refrigerant supply pipeline, and the refrigerant supply pipeline The first end is connected with a first storage component for supplying refrigerant, and the second end communicates with the filling port of the air conditioner; the refrigerant storage pipeline is provided with a second valve, and the first end of the refrigerant storage pipeline is connected to There is a second storage part for receiving refrigerant, the second end communicates with the filling port of the air conditioner; the controller is electrically connected with the first valve and the second valve respectively; the pressure sensor is connected with the liquid pipe of the air conditioner and It is electrically connected with the controller; the liquid pipe temperature sensor is arranged on the liquid pipe of the air conditioner and electrically connected with the controller; the ambient temperature sensor is electrically connected with the controller. The invention solves the problem in the prior art that the performance of the air conditioner system is degraded due to errors caused by artificially pouring refrigerant.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a refrigerant filling assembly and a refrigerant filling method for an air conditioner. Background technique [0002] Since the distance between the indoor unit and the outdoor unit of the split type air conditioner cannot be uniform, the length of the connecting pipes is also different, and the amount of refrigerant charged to the external unit of the air conditioner is determined according to the rated fixed length, so the air conditioner needs to be installed according to Different connecting pipe lengths increase or decrease a certain amount of refrigerant. The traditional operation of increasing or decreasing refrigerant is that the installer manually reads the parameters such as temperature and pressure, and then judges how much refrigerant needs to be increased or decreased according to the standard in the instruction manual. This operation method has more human o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B45/00F24F11/00
Inventor 曹勇黄春
Owner 珠海格力机电工程有限公司
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