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Automobile air conditioning liquid filling equipment and filling method thereof

A filling equipment, automotive air-conditioning technology, applied in lighting and heating equipment, heating methods, refrigeration and liquefaction, etc., can solve the problems of equipment failure maintenance costs, high prices, shift changes, etc., to reduce failure maintenance costs and strengthen self Preventive measures to improve the effect of equipment automation

Active Publication Date: 2012-08-22
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned filling method mainly has the following defects: after the operator finishes filling a vehicle, there will often be shift changes or meal time
At this time, if the negative pressure value of the automobile air-conditioning fluid pipeline is detected by the vacuum sensor of the filling equipment, since the pressure value detectable by the vacuum sensor is low, it will inevitably cause damage to the vacuum sensor, and the air-conditioning fluid will enter through the vacuum pipeline. The interior of the vacuum pump of the filling equipment causes the service life of the vacuum pump to be greatly reduced
Due to the high price of vacuum sensors and vacuum pumps, the maintenance cost of equipment failures has skyrocketed

Method used

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  • Automobile air conditioning liquid filling equipment and filling method thereof
  • Automobile air conditioning liquid filling equipment and filling method thereof
  • Automobile air conditioning liquid filling equipment and filling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, on the basis of the filling equipment with the above structure, the pressure sensor 1 communicates with the vacuum detection pipeline 9 through another branch pipeline, and the third control valve 7 controlled by the control system is arranged in the branch pipeline. The control system controls the on-off between the pressure sensor 1 and the vacuum detection pipeline 9 through the third control valve 7. When the operator connects the filling equipment and the automobile air-conditioning fluid pipeline, the control system controls the third control valve 7 to be connected. After the filling of the air-conditioning fluid is completed, the control system can control the third control valve 7 to be disconnected, so as to avoid the influence of the pressure sensor 1 when the vacuum sensor 2 detects the negative pressure of the vacuum detection pipeline 9 .

Embodiment 2

[0022] Such as figure 1 As shown, a muffler 3 is provided in the vacuum detection pipeline 9, and the muffler 3 communicates with the vacuum detection pipeline 9 through a third branch pipeline, and a fourth control valve controlled by the control system is arranged in the third branch pipeline. 8. The muffler 3 and the fourth control valve 8 are used to release impurities in the vacuum detection pipeline 9 and reduce noise; when the air-conditioning fluid is filled, the operator disconnects the quick-plug connector 12 of the filling equipment from the automobile air-conditioning pipeline connection, open the fourth control valve 8 to release the positive pressure inside the vacuum detection pipeline 9, and prepare for the next filling. The technical content of this embodiment is applicable to the filling equipment with any structure mentioned above.

Embodiment 3

[0024] The first control valve 5 and the second control valve 6 can optionally be controlled on and off by the control system, so as to improve the automation of the filling equipment. The technical content of this embodiment is applicable to the filling equipment with any structure mentioned above.

[0025] In addition, the present invention also discloses a filling method for the above-mentioned automobile air-conditioning liquid filling equipment, and the steps of the filling method are as follows:

[0026] When the operator connects the filling equipment and the automobile air-conditioning fluid pipeline, the control system first controls the first control valve 5 to be disconnected, the second control valve 6 to be disconnected, and the first control valve 5 to disconnect the vacuum sensor 2 from the filling equipment. The connection between the vacuum detection pipeline 9, the second control valve 6 disconnects the connection between the vacuum pump 4 and the vacuum dete...

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Abstract

The invention discloses automobile air conditioning liquid filling equipment and a filling method thereof. The filling equipment comprises a filling pipeline, a vacuum detection pipeline and a vacuum sensor. The filling equipment is connected with a control system. A vacuum pump is arranged in the vacuum detection pipeline. The vacuum sensor is communicated with the vacuum detection pipeline through a branch pipeline. A first control valve is arranged in the branch pipeline of the vacuum sensor. A second control valve which is used for switching on and off the vacuum pump is arranged in the vacuum detection pipeline. A pressure sensor is arranged in the vacuum detection pipeline. By adopting the technical scheme and adding the pressure sensor and the control valve, when an operator connects the filling equipment with an automobile air conditioning liquid pipeline, firstly the vacuum sensor and the vacuum pump are disconnected from the vacuum detection pipeline, then the pressure sensor is enabled to conduct pressure detection on the air conditioning liquid pipeline, the vacuum sensor and the vacuum pump of the equipment can be prevented from being damaged because of negligence of the operator, the damage rate of the equipment is greatly reduced and the expenses in equipment breakdown maintenance are reduced.

Description

technical field [0001] The invention relates to an automobile air-conditioning fluid filling device and a filling method thereof. Background technique [0002] At present, the filling of automobile air-conditioning fluid is carried out online on the assembly line. Before filling, the filling equipment first vacuumizes the pipeline of the air-conditioning system of the vehicle to be filled, reads the negative pressure value of the vacuum system through the vacuum sensor of the filling equipment, and then judges whether it is qualified according to the corresponding process parameters; If it is qualified, then refill the air-conditioning fluid; the schematic diagram of the hydraulic pipeline of the filling equipment is as follows: figure 2 shown. [0003] The above-mentioned filling method mainly has the following defects: after the operator finishes filling a car, there will often be shift changes or meal time. When the operator came back from the meal, he often used the f...

Claims

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Application Information

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IPC IPC(8): F25B45/00F24F11/02
Inventor 张青松
Owner CHERY AUTOMOBILE CO LTD
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