Automobile refrigerant filling and recycling system

A refrigerant recovery and recovery system technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of inaccurate refrigerant injection and poor air conditioning performance, and achieve a simple structure, strong practicability, and easy implementation. Effect

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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inaccurate refrigerant injection leads to poor air conditioner performance

Method used

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  • Automobile refrigerant filling and recycling system
  • Automobile refrigerant filling and recycling system

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Experimental program
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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] like figure 1 As shown, a vehicle refrigerant filling and recovery system includes a refrigerant recovery and filling device 2, a steel cylinder 6, a vacuum pump 7, a balance scale 5, a pressure detection unit 3 and a control unit 1, a vacuum pump 7, a steel cylinder 6, and a refrigerant recovery and filling system. The device 2 and the pressure detection unit 3 are connected sequentially, the pressure detection unit 3 is connected with the refrigerant injection port 4 of the automobile air conditioner, the control unit 1 is connected with the refrigerant recovery and filling device 2, and the balance scale 5 is used to weigh the steel cylinder 6 placed on it. the weight of the refrigerant,

[0025] like figure 2 As shown, the control unit 1 includes an electrical switch 11, a relay module, a DC power supply 16 and an indicator modu...

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PUM

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Abstract

The invention relates to a vehicle refrigerant filling and recovery system, which includes a refrigerant recovery and filling device, a steel cylinder, a vacuum pump, a balance scale and a pressure detection unit. The vacuum pump, the steel cylinder, the refrigerant recovery and filling device, and the pressure detection unit are connected in sequence. The pressure detection unit is connected to the refrigerant injection port of the automobile air conditioner, the balance is used for weighing the refrigerant in the steel cylinder, and also includes a control unit, and the control unit is connected to the refrigerant recovery and filling device, The control unit includes an electrical switch, a relay module, a power supply module and an indicator module connected in sequence, the electrical switch is connected to a 220V power supply, and the relay module is connected to the refrigerant recovery and filling device. Compared with the prior art, the invention has the advantages of lower cost, good stability and high precision.

Description

technical field [0001] The invention belongs to the field of automobile air conditioners, and in particular relates to a refrigerant charging and recovery system for automobiles. Background technique [0002] Automobile air-conditioning system refrigerant recovery and filling machine: After recovering the refrigerant of the automobile air-conditioning system, the incompressible gas and impurities are separated, and the purified refrigerant is stored for recycling, which not only restores the refrigeration function of the automobile air-conditioning system, It also prevents the refrigerant from being discharged into the atmosphere and pollutes the environment. Refrigerant recovery and filling machine for automobile air conditioning system is generally composed of compressor, vacuum pump, oil-gas separator, dry filter, condenser, steel cylinder, control solenoid valve and other components. In the prior art, automobile air conditioners, central air conditioners, refrigerators,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B45/00F25B43/00
CPCF25B45/00F25B43/003
Inventor 施颖君
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