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Refrigerant filling component for air conditioner and refrigerant filling method

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

Active Publication Date: 2014-02-12
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 component for air conditioner and refrigerant filling method
  • Refrigerant filling component for air conditioner and refrigerant filling method
  • Refrigerant filling component for air conditioner and refrigerant filling method

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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 invention provides a refrigerant filling component for an air conditioner and a refrigerant filling method. The refrigerant filling component for the air conditioner comprises a refrigerant supply pipeline, a refrigerant storage pipeline, a controller, a pressure sensor, a liquid pipe temperature sensor and an environmental temperature sensor, a first valve is arranged on the refrigerant supply pipeline, a first end of the refrigerant supply pipeline is connected with a first storage part for supplying refrigerants, a second end of the refrigerant supply pipeline is communicated with a filling port of the air conditioner, a second valve is arranged on the refrigerant storage pipeline, a first end of the refrigerant storage pipeline is connected with a second storage part for receiving the refrigerants, a second end of the refrigerant storage pipeline is communicated with the filling port of the air conditioner, the controller is respectively electrically connected with the first valve and the second valve, the pressure sensor is connected with a liquid pipe of the air conditioner and 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, and the environmental temperature sensor is electrically connected with the controller. The refrigerant filling component solves the problem that the system performance of the air conditioner is reduced due to errors of manual refrigerant filling in the prior art.

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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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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