Refrigerant recovering and filling machine of vehicle air conditioner

Abstract

The invention relates to the technical field of air conditioner maintenance, and in particular relates to a refrigerant recovering and filling machine of a vehicle air conditioner. The machine consists of a recovery part, a vacuumization part, an oil replenishing part, an oil filling part, an air exhaust part and a pressure checking part. The refrigerant recovering and filling machine of the vehicle air conditioner integrates recovery, vacuumization, oil replenishing, oil filling, air exhaust and pressure checking, so as to be capable of being used for directly maintaining a vehicle air conditioner system without scattered maintenance tools, such as a screwdriver special for dismounting a vehicle air conditioner valve core, a bottle opener, a system pressure gauge set and a vacuum pump, so that the work efficiency is improved, and the management cost is reduced; the refrigerant recovering and filling machine can be used for directly recovering the refrigerant without discharging the refrigerant to the atmosphere, so that resources are saved, and the environment is protected; and a weighting sensor is used for measuring the refrigerant filling amount without need of estimating the refrigerant filling amount according to experience, so that the risk of damaging the vehicle air conditioner or harming the personnel due to inaccurate refrigerant filling amount is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle air conditioner maintenance, in particular to a vehicle air conditioner refrigerant recovery charging machine. Background technique [0002] The current vehicle air-conditioning refrigeration system is due to refrigerant leakage, excessive charging, or impurity gas, moisture in the refrigerant, deterioration of lubricating oil in the refrigeration system, and damage or failure of parts, resulting in a decrease in the performance of the air-conditioning system or Can't run. In these cases, vehicle air conditioners need inspection and maintenance. The current general treatment method is to put all the refrigerant in the air conditioner into the atmosphere with a special screwdriver for removing and installing the valve core of the air conditioner, and then check and replace the relevant parts. After the repair of the parts is completed, use the system pressure gauge group and The vacuum pump vacuu...

AI Technical Summary

Problems solved by technology

This maintenance method has many tools and scattered steps, it is difficult to quantify the management operation process, and it pollutes the environment and wastes resources

When the maintenance personnel are not very familiar with the principle of air conditioning, the use of such tools may damage the vehicle air conditioner, and may even endanger the health of the maintenance personnel in some cases

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