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System and method for judging authenticity of automotive air conditioner refrigerant

A technology for automotive air conditioners and refrigerants, applied in measurement devices, instruments, etc., can solve problems such as reducing brand reputation, user complaints, and affecting user use.

Active Publication Date: 2015-07-29
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems will affect the use of users, cause users to complain, reduce the brand reputation, and also affect the life of the air conditioning system

Method used

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  • System and method for judging authenticity of automotive air conditioner refrigerant
  • System and method for judging authenticity of automotive air conditioner refrigerant
  • System and method for judging authenticity of automotive air conditioner refrigerant

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with accompanying drawing.

[0036] Such as figure 1 The shown system for judging the authenticity of the refrigerant in the automobile air conditioner includes a refrigerant temperature sensor 1, a refrigerant pressure sensor 2 and a signal processing module. The refrigerant temperature sensor 1 and the refrigerant pressure sensor 2 are integrated together to form a sensor combination plug-in 10 . When in use, the sensor combination plug-in 10 is installed in the coaxial pipe of the air conditioner.

[0037] Such as figure 2 As shown, the air-conditioning coaxial pipe includes a pipe body, an inner connecting pipe 13 and an outer connecting pipe 11. The pipe body includes an inner pipe 12 and an outer pipe 15 arranged in sequence from the inside to the outside, and the outer diameter of the inner pipe 12 is larger than that of the outer pipe. The inner diameter of the tube 15, the space between th...

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Abstract

The invention discloses a system and a method for judging authenticity of an automotive air conditioner refrigerant. The system comprises a refrigerant temperature sensor, a refrigerant pressure sensor and a signal processing module, wherein the refrigerant temperature sensor is used for collecting temperature signals of the refrigerant; the refrigerant pressure sensor is used for collecting pressure signals of the refrigerant; the signal processing module comprises a memorizer, a controller and a display; the controller is respectively connected to the refrigerant temperature sensor, the refrigerant pressure sensor, the memorizer and the display; the controller is used for receiving pressure signals and judging whether the pressure value of the refrigerant is gradually increased from being zero or near zero to a predetermined pressure value, and if yes, determining that the air conditioner system is refilled with the refrigerant once; the controller is further used for judging whether the same group of collected pressure values is in the allowable pressure range according to collected temperature; if the same group of collected pressure values is in the allowable pressure range, the refrigerant is true and a timer starts a new turn of timing; if the same group of collected pressure values is not in the allowable pressure range, the refrigerant is false and the timer starts timing. The system and the method are capable of judging the authenticity of the filled refrigerant.

Description

technical field [0001] The invention belongs to automobile air conditioners, in particular to a system and method for judging the authenticity of refrigerants in automobile air conditioners. Background technique [0002] At present, in the actual use of automotive air conditioners, refrigerant leakage, excessive or insufficient filling often occur, and inferior refrigerants that have been eliminated are used as shoddy products. These problems will affect the use of users, cause users to complain, reduce the brand reputation, and also affect the life of the air conditioning system. Contents of the invention [0003] The object of the present invention is to provide a system and method for judging the authenticity of the refrigerant in the automobile air-conditioning system, which can judge the authenticity of the refrigerant filled in the automobile air-conditioning system. [0004] The judging system for authenticity of automobile air-conditioning refrigerant according to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
Inventor 蔡操平
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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