CN210941263U - New energy automobile air conditioner electric compressor detection system with oil gas purification function - Google Patents

Abstract

The utility model relates to a take new energy automobile air conditioner electric compressor detecting system of oil gas purification, new energy automobile air conditioner compressor is at the during operation, because the refrigerant after the compressor compression is in high temperature high pressure state, inevitably can make the inside part refrigeration oil vaporization of organism become oil vapor or little oil drop, in getting into cooler and evaporimeter along with compressed gas, if oil drop and oil vapor get into the cooler of cooling gas, can make the detection rate reduce, this leads to the pipe blockage, the main reason that every half month of detecting system need maintain once, to this reason, a take new energy automobile air conditioner electric compressor detecting system of oil gas purification is proposed, its system has the oil gas purification function, can improve detection efficiency.

Description

New energy automobile air conditioner electric compressor detection system with oil gas purification function

Technical Field

The utility model relates to a vehicle air conditioner makes the technique, in particular to take new energy automobile air conditioner motor compressor detecting system of oil gas purification.

Background

In the production and manufacturing of the new energy automobile air conditioner compressor, after the compressor is assembled, before the compressor leaves a factory, detection is needed to ensure that the quality of the compressor leaving the factory is all qualified; in order to detect the performance of the compressor, each compressor must be operated for a period of testing time to observe basic indexes such as performance stability and compression efficiency, and for mass production of compressors, the detection system is usually detected all day long to meet the detection requirement, and due to various factors, the following problems occur in the conventional detection system: 1. the detection system is maintained for 1 time every half month, the maintenance frequency is high, the detection efficiency is influenced, the maintenance time is 1 time and 2H, and the working hours are delayed; 2. the system is easy to block, the deviation fluctuation of the detected data is large, the accuracy is not high, and the phenomena of misjudgment and misdetection can occur. Therefore, it is desirable to provide a more efficient technical method for analyzing the cause and solving the problem based on the conventional detection system.

Disclosure of Invention

The utility model discloses to above not enough, provide a take new energy automobile air conditioner electric compressor detecting system of oil gas purification.

When the air-conditioning compressor of the new energy automobile works, because a refrigerant compressed by the compressor is in a high-temperature and high-pressure state, part of refrigeration oil or lubricating oil in the engine body is inevitably vaporized into oil vapor and oil droplets, and the oil vapor and the oil droplets enter a cooler and an evaporator along with compressed air. If oil droplets and oil vapor enter the cooler for the cooling gas, the detection accuracy will be reduced, which is the main reason for the blockage of the pipes and the need for maintenance of the detection system every half month.

For the reason, a new energy automobile air conditioner electric compressor detection system with oil gas purification is provided.

The detection system comprises an air-conditioning compressor, a filter for filtering impurities, a condenser with a cooling function, a drying bottle, an evaporator with a heat dissipation function, an expansion valve arranged on a steam device, a liquid viewing mirror for observing a refrigerant in a pipeline, an oil-gas filtering purifier for oil-gas purification, a low-pressure meter, a high-pressure meter, a vacuum pump for vacuumizing, a refrigerant tank and a communication pipeline, wherein the air-conditioning compressor is a compressor to be detected, the air-conditioning compressor generally comprises an exhaust pipe and an air inlet pipe, the communication pipeline is formed by combining a plurality of sections of pipelines capable of ventilating, the connection sequence of all components is described according to the operation path of the refrigerant in the communication pipeline when the air-conditioning compressor operates, the filter is connected to the exhaust pipe of the air-conditioning compressor through the communication pipeline, valves, namely a first valve and a second valve, are arranged in front of and at back, after the communicating pipeline comes out of the second valve, the communicating pipeline is divided into two paths, one path is connected to a cooler, the other path is connected to a liquid viewing mirror, the cooler is connected to a drying bottle through the communicating pipeline, then the drying bottle is connected to a steam device through the communicating pipeline, a third valve is arranged between the steam device and the drying bottle, meanwhile, the steam device is controlled by an expansion valve to control the flow, the steam device is connected to the next valve, namely, a fourth valve, the fourth valve is connected to an air conditioning compressor, the liquid viewing mirror is connected to an oil gas filtering purifier, the oil gas filtering purifier is connected to the fourth valve, namely, the front end of the fourth valve is respectively connected with the oil gas filtering purifier and an evaporator, meanwhile, a refrigerant tank is arranged in front of the air conditioning compressor, meanwhile, a vacuum pump is also arranged in front of the air conditioning compressor, a valve, namely, a fifth valve is, the front of the air conditioner compressor is a communication pipeline of an air inlet pipe, the high-pressure gauge is arranged at the rear of the air conditioner compressor, and the rear of the air conditioner compressor is a communication pipeline of an air outlet pipe of the air conditioner compressor.

The basic cycle principle of the whole detection system is that a refrigerant is compressed, condensed, throttled, evaporated, compressed and continuously circulated.

In the detection process, the refrigerant is a refrigerant special for an automobile air conditioner, and the basic state of the refrigerant is gas.

The air conditioner compressor is a compressor to be tested, provides compressed gas, discharges high-temperature and high-pressure gas through an exhaust port, and sucks low-temperature and low-pressure gas through an air inlet, and is a main power source for continuous circulating motion of refrigerant gas.

In the testing process, because one set of system will work repeatedly, the compressor that awaits measuring constantly changes promptly, accomplishes one and detects next detection next time, when changing the operation, may have impurity to stay in the pipeline, consequently can set up a filter earlier in the below intercommunication pipeline of gas vent usually.

The filter is used as filtering impurities, and a first valve is arranged in the front of the filter, so that the control of the communicating pipeline is convenient to control.

The condenser is a component of a refrigeration system, belongs to one type of heat exchangers, and can convert gas or steam into liquid to transfer heat in the pipe to air near the pipe in a quick mode; the condenser operation is an exothermic process.

The drying bottle has the function of absorbing moisture, and most of the moisture of the gas is removed after the gas passes through the drying bottle.

The evaporator is an important part in four major refrigerating parts, and low-temperature condensed liquid passes through the evaporator to exchange heat with external air, gasifies and absorbs heat, and achieves the refrigerating effect.

The expansion valve mainly has the functions of throttling, depressurizing and regulating flow for the evaporator.

The refrigerant tank stores a certain amount of refrigerant.

The main function of the vacuum pump is to draw gas from the line, usually at start-up.

The high pressure gauge mainly observes the exhaust pressure of the air conditioner compressor, and the low pressure gauge mainly observes the air inlet pressure.

Between the exhaust port and the air inlet of the electric compressor, a valve and a sixth valve are arranged on a communication pipeline, and the main function of the sixth valve is to ensure that the evacuation is smoother.

Structure of oil gas filter clarifier: contains cask, ball-cock assembly, filtering baffle, filter screen air inlet, filter screen gas outlet, the oil-out, the apron, oil pipe, the filter that admits air, the filter of giving vent to anger.

There is an apron the top of cask, the cask adopts bolted connection with the apron, form and seal the relation of connection, be provided with filtering baffle in the below of cask, fall into two regions with the cask, the filter that admits air in one of them regional setting, the filter of giving vent to anger is set up in the other region, the filter that wherein admits air is correspondingly to connect the filter screen air inlet, the filter of giving vent to anger simultaneously connects the filter screen gas outlet, ball-cock assembly sets up the bottom in the cask, it connects oil pipe, oil pipe extends to the bottom of cask, set up the oil-out on the apron, filter screen gas outlet and filter screen air inlet all set up on the apron.

Oil gas filter clarifier has the effect of the oil content in the filtration refrigerant, the refrigerant that mingles with the oil content enters into on the filter of admitting air by the filter screen air inlet, because the oil molecule is bigger, can adsorb on the filter of admitting air then down drippage, and simultaneously, the refrigerant is filtered once again through filtering baffle, then filter once again through the filter of giving vent to anger, oil can down drippage like this and store in the cask bottom, along with the oil that the cask was collected becomes many, under the effect of buoyancy, the ball-cock assembly up opens, especially whole cask constantly has the refrigerant to irritate, therefore its inside pressure is greater than outside pressure, under the effect of pressure difference, oil comes out from the oil-out along oil pipe like this, then connect an oil pipe in oil outlet department, arrange to outside in the collection bucket, when the oil in the cask discharges, the ball-cock assembly descends and closes, the refrigerant can not come out from the.

The float valve may be a solenoid valve that is opened or closed by sensing the level of the liquid.

To whole detecting system, air condition compressor is constantly towards the connecting line pour into and is mingled with a small amount of oil gas, if whole system does not have oil gas filter clarifier, then all vaporization oil must mostly can condense at the back end of connecting line, because at the back end of circulation, after the cooling, the oil gas is more probably condensed, consequently along with the lapse of time, the pipeline must produce the jam, detecting system's purpose is the running condition who detects air condition compressor, observe through high-pressure table and low-pressure table usually, can judge the difference between air condition compressor's the direct compression ability and the theoretical design ability very fast, the operation of other connecting lines is more stable better, therefore so the oil content that oil gas filter clarifier can collect, will stay in the pipeline originally, consequently can improve detection efficiency greatly through increasing oil gas filter clarifier.

Drawings

Fig. 1 is the utility model discloses a take new energy automobile air conditioner electric compressor detecting system schematic diagram of oil gas purification.

Fig. 2 is the structure schematic diagram of oil gas filtration purifier in the embodiment of the utility model.

Fig. 3 is a schematic view of the oil gas filtering purifier in the embodiment of the present invention.

Fig. 4 is a schematic diagram of a system cycle.

Legend: an air conditioner compressor 1, a filter 2, a condenser 4, a drying bottle 5, an evaporator 7, an expansion valve 6,

the liquid observation mirror comprises a liquid observation mirror 3, an oil gas filtering purifier 8, an evaporator 7, an expansion valve 6, a low pressure gauge 13, a high pressure gauge 12, a refrigerant tank 9, a communicating pipeline, a first valve 11a, a second valve 11b, a third valve 11c, a fourth valve 11d, a fifth valve 11e, a drum 81, a ball float valve 82, a filtering baffle 83, a filtering net air inlet 88, a filtering net air outlet 87, an oil outlet 89a, a cover plate 86, an oil pipe 89, an air inlet filtering plate 85 and an air outlet filtering plate 84.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and drawings.

Referring to fig. 1-3, schematic diagrams of a new energy automobile air conditioner compressor detection system with oil gas purification are shown.

The detection system comprises an air-conditioning compressor 1, a filter 2 for filtering impurities, a condenser 4 with a cooling function, a drying bottle 5, an evaporator 7 with a heat dissipation function, an expansion valve 6 arranged on a steam device, a liquid viewing mirror 3 for observing a refrigerant in a pipeline, an oil-gas filtering purifier 8 with an oil-gas purification function, a low-pressure meter 13, a high-pressure meter 12, a vacuum pump 10 for vacuumizing, a refrigerant tank 9 and a communication pipeline, wherein the air-conditioning compressor is the compressor to be detected, in the figure 1, a connecting line represents the communication pipeline, an arrow represents the movement direction of the refrigerant, the air-conditioning compressor 1 generally comprises an exhaust pipe and an air inlet pipe, the communication pipeline is formed by combining a plurality of sections of breathable pipelines, when the air-conditioning compressor 1 operates, the connection sequence of all components is described according to the operation path of the refrigerant in the communication pipeline, the filter 2 is connected to the exhaust pipe of the air, valves, namely a first valve 11a and a second valve 11b are arranged at the front and the back of the filter 2, a communication pipeline is divided into two paths after coming out of the second valve 11b, one path is connected to a cooler 4, the other path is connected to a liquid viewing mirror 3, the cooler 4 is connected to a drying bottle 5 through the communication pipeline, then the drying bottle 5 is connected to a steamer 7 through the communication pipeline 5, a third valve 11c is arranged between the steamer 7 and the drying bottle 5, the flow of the steamer 7 is controlled by an expansion valve 6, the steamer 7 is connected to the next valve, namely a fourth valve 11d is connected to the air-conditioning compressor 1, the liquid viewing mirror 3 is connected to an oil-gas filtering purifier 8, the oil-gas filtering purifier 8 is connected to the fourth valve 11d, namely the oil-gas filtering purifier 8 and the evaporator 7 are respectively connected to the front end of the fourth valve 11d, and a refrigerant tank 9 is arranged in front of the air-conditioning compressor 1, meanwhile, the vacuum pump 10 is also arranged in front of the air-conditioning compressor 1, the vacuum pump 10 is provided with a valve, namely a fifth valve 11e, the low-pressure gauge 13 is arranged in front of the air-conditioning compressor 1, the front of the air-conditioning compressor 1 refers to a communication pipeline of an air inlet pipe, the high-pressure gauge 12 is arranged behind the air-conditioning compressor, fig. 1 shows the connection relation of the whole system, and an arrow shows the operation direction of a refrigerant under the action of the air-conditioning compressor 1.

As shown in fig. 4, the basic cycle steps of the whole detection system are that the refrigerant 9 is compressed by the compressor, then condensed, then throttled, then evaporated, then compressed, and continuously circulated, which is the basic cycle principle of the detection system, and the performance of the air-conditioning compressor 1 is judged by observing various indexes of the circulation.

In the detection process, the refrigerant is a refrigerant special for an automobile air conditioner, and the basic state of the refrigerant is gas.

There is refrigeration oil or lubricating oil in the air condition compressor 1, when air condition compressor 1 compressed the refrigerant, can let refrigeration oil or lubricating oil gasification, along with high pressure high temperature refrigerant gas gets into in the intercommunication pipeline.

The air conditioner compressor 1 is a compressor to be tested, provides compressed gas, and a gas outlet of the air conditioner compressor discharges high-temperature and high-pressure gas, and conversely, a gas inlet of the air conditioner compressor sucks low-temperature and low-pressure gas, and the air conditioner compressor is a main power source for continuous circulating motion of refrigerant gas.

In the testing process, because one set of system will work repeatedly, the compressor that awaits measuring constantly changes promptly, accomplishes one and detects next detection next, when changing the operation, may have impurity to stay in the pipeline, consequently can set up a filter 2 earlier in the below intercommunication pipeline of gas vent usually.

The filter 2 is used for filtering impurities, and a first valve 11a is arranged in the front of the filter, so that the communication pipeline is convenient to control.

The condenser 4, a component of the refrigerating system, belong to one kind of heat exchanger, transfer the heat in the tube, in a very fast way, to the air near the tube; the condenser operation is an exothermic process.

The drying bottle 5 has a function of absorbing moisture, and most of the moisture of the gas is removed after the gas passes through the drying bottle 5.

The evaporator 7 is an important part in four major components of refrigeration, and condensed gas passes through the evaporator to exchange heat with outside air, gasify and absorb heat, thereby achieving the effect of refrigeration.

The expansion valve 6 mainly has the functions of throttling, depressurizing and flow regulating for the evaporator 7.

The refrigerant tank 9 stores a certain amount of refrigerant.

The main function of the vacuum pump 10 is to pump the gas in the pipeline, usually once it is started at the beginning of operation.

A high pressure gauge 12 and a low pressure gauge 13, the high pressure gauge 12 mainly observes a discharge port pressure of the air conditioner compressor 1, and the low pressure gauge 13 mainly observes an intake port pressure.

Between the exhaust of electric compressor and air inlet, on communicating the pipeline, set up a valve again, sixth valve 11f, its main function is more smooth and easy when the evacuation, normally closes, and figure 1 shows the intercommunication structure.

The system comprises a filter 2, a condenser 4, a drying bottle 5, an evaporator 7, an expansion valve 6, a liquid viewing mirror 3, the evaporator 7, the expansion valve 6, a low pressure meter 13, a high pressure meter 12, a refrigerant tank 9 and a communication pipeline, wherein the accessories belong to the technologies disclosed in the prior detection system and are relatively easy to obtain in the market, so that the internal structure of the system is not described, and only the working principle and the function of the system are described.

Fig. 3 shows a basic appearance of the oil and gas filter cleaner 8, and fig. 2 shows an internal structure of the oil and gas filter cleaner 8.

Referring to fig. 2-3, the oil gas filter purifier 8 comprises a drum 81, a ball float valve 82, a filter baffle 83, a filter screen air inlet 88, a filter screen air outlet 87, an oil outlet 89a, a cover plate 86, an oil pipe 89, an air inlet filter plate 85 and an air outlet filter plate 84.

The float valve 82 can be an electromagnetic valve, and various electromagnetic valves passing through the height of the float ball are available on the market, and the main function is to control the opening and closing.

The filtering baffle 83 can be a dense steel net for filtering, and can also be other filtering materials.

The connection relation inside the oil gas filter purifier 8 is as follows: there is a apron 86 above cask 81, cask 81 and apron 86 adopt bolted connection, form the closed connection relation, it is provided with filtering baffle 83 to set up in the below of cask 81, divide into two regions with cask 81, the filter 85 of admitting air in one of them regional, the filter 84 of giving vent to anger in the regional setting of other, it is connected filter air inlet 88 that wherein the filter 85 of admitting air correspondingly, the filter 84 of giving vent to anger connects filter air outlet 87 simultaneously, ball-cock assembly 82 sets up the bottom in cask 81, it connects oil pipe 89, oil pipe 89 extends to the bottom of cask 81, set up oil-out 89a on apron 86, filter air outlet 87 and filter air inlet 88 all set up on apron 86 simultaneously.

The oil gas filter purifier 8 has the function of filtering oil in the refrigerant, the refrigerant mixed with the oil enters the air inlet filter plate 85 from the air inlet 88 of the filter screen, because the oil molecules are relatively large, the oil molecules are adsorbed on the air inlet filter plate 85 and then drop downwards, meanwhile, the refrigerant is filtered once again through the filter baffle 83, and then filtered again through the air outlet filter plate 84, so that the oil drops down to be stored at the bottom of the drum 81, and as the oil collected by the drum 81 becomes more, under the action of the buoyancy, the ball float valve 82 is opened upwards, the whole barrel 81 is continuously filled with the refrigerant, so the pressure inside the barrel is higher than the pressure outside the barrel, under the action of pressure difference, the oil flows out from the oil outlet 89a along the oil pipe 89a, then is connected with an oil pipe at the oil outlet 89a and is discharged into an external collecting barrel, when the oil in the drum 81 is discharged, the float valve 82 is lowered and closed, so that the refrigerant does not come out of the oil outlet 89 a.

The air outlet filter plate 84 and the air inlet filter plate 85 are stainless steel metal plates with dense meshes, the air outlet filter plate can be a compact textile filter membrane and is arranged below the cover plate 86, and the cleaning is very convenient when the cover plate 86 is opened.

Therefore, when the oil-gas filter 8 is installed in the system, oil can be filtered only if a refrigerant passes through the oil-gas filter 8.

Referring to fig. 1, the overall system connection structure is shown.

During detection, the operation steps are as follows: 1) the air-conditioning compressor 1 is installed in the system.

2) The fifth valve 11e is opened, the sixth valve 11f is opened while keeping the first valve 11a closed and the fourth valve 11d closed, and then the vacuum pump 10 is opened to draw air from the entire compressor, and the vacuum pump 10 is turned off after a certain time.

3) The sixth valve 11f and the fifth valve 11e are closed, the valves on the refrigerant bottle are opened, and the first valve 11a and the fourth valve 11d are opened at the same time, so that the whole circulation system is unblocked.

4) And starting the air conditioner compressor 1, operating for a short time, observing the high pressure meter 12 and the low pressure meter 12, and judging whether the operating condition of the air conditioner compressor 1 is qualified.

For the whole detection system, the air-conditioning compressor 1 continuously injects a refrigerant mixed with a small amount of oil gas into the connecting pipeline, if the entire system does not have the oil and gas filter cleaner 8, all the oil and gas will necessarily be mostly condensed in the rear section of the connecting line, because the refrigerant is cooled in the later stage of the cycle, the oil and gas are more likely to be condensed, so that the pipeline is inevitably blocked with the passage of time, the detection quality is affected by partial blockage or complete blockage, the purpose of the detection system is to detect the running condition of the air conditioner compressor, usually observed by a high pressure meter 12 and a low pressure meter 13, the difference between the compression capacity of the air conditioner compressor and the theoretical design capacity can be judged quickly, the more stable the operation of its connecting line the better, therefore all oil that oil gas filter clarifier 8 can collect will stay in the pipeline anyway, consequently can improve detection efficiency through increasing oil gas filter clarifier.

The following is a comparison of the effect of the present detection system and the general detection:

accounting with 3 months of detection period and 10 detection systems as standard

Conclusion-1: the cost of maintaining the system is greatly reduced.

The detection efficiency is improved, the labor hour consumed for maintaining the system is greatly reduced, and 90H is saved when 120H-30H is 90H.

The above data are from applicant company laboratory data.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims (4)

1. A new energy automobile air conditioner electric compressor detection system with oil gas purification comprises an air conditioner compressor, a filter for filtering impurities, a condenser with a cooling function, a drying bottle, an evaporator with a heat dissipation function, an expansion valve installed on a steamer, a liquid viewing mirror for observing a pipeline, an oil gas filtering purifier for oil gas purification, a low pressure meter, a high pressure meter, a vacuum pump for vacuumizing, a refrigerant tank and a communication pipeline, and is characterized in that the air conditioner compressor is a compressor to be detected, the air conditioner compressor is provided with an exhaust pipe and an air inlet pipe, the communication pipeline is formed by combining a plurality of sections of breathable pipelines, when the air conditioner compressor runs, the connection sequence of all components is described according to the operation path of the refrigerant in the communication pipeline, the filter is connected to the exhaust pipe of the air conditioner compressor through the communication pipeline, valves are arranged in front of and in back of the filter, the system comprises a first valve and a second valve, a communication pipeline is divided into two paths after coming out of the second valve, one path is connected to a cooler, the other path is connected to a liquid viewing mirror, the cooler is connected to a drying bottle through the communication pipeline, the drying bottle is connected to a steamer through the communication pipeline, a third valve is arranged between the steamer and the drying bottle, the steamer is controlled by an expansion valve to control flow, the steamer is connected to the next valve, namely a fourth valve, the fourth valve is connected to an air-conditioning compressor, the liquid viewing mirror is connected to an oil-gas filtering purifier, the oil-gas filtering purifier is connected to the fourth valve, namely an oil-gas filtering purifier and an evaporator are respectively connected to the front end of the fourth valve, a refrigerant tank is arranged in front of the air-conditioning compressor, a vacuum pump is also arranged in front of the air-conditioning compressor, a valve, namely a fifth valve is arranged on the, the low pressure meter is arranged in front of the air-conditioning compressor, a communicating pipeline of an air inlet pipe is arranged in front of the air-conditioning compressor, the high pressure meter is arranged behind the air-conditioning compressor, and a communicating pipeline of an air outlet pipe of the air-conditioning compressor is arranged behind the air-conditioning compressor; structure of oil gas filter clarifier: contain as the cask of main part, play the ball-cock assembly that controls the pipeline according to the floater motion and open, be used for the filtration baffle of isolation, be connected to the filter screen air inlet of pipeline, be connected to the filter screen gas outlet of pipeline, connect the oil-out of outside oil drum, be used for the apron of sealed cask for the oil pipe of oil extraction, be used for filtering the filter of admitting air of oil content and be used for filtering the filter of giving vent to anger of oil content.

2. The system for detecting the air-conditioning electric compressor of the new energy automobile with the oil-gas purification function as claimed in claim 1, wherein the connection relationship of the components of the oil-gas filter purifier is that a cover plate is arranged above the drum, the drum and the cover plate are connected through bolts to form a closed connection relationship, a filtering baffle is arranged below the drum to divide the drum into two regions, an air inlet filtering plate is arranged in one region, an air outlet filtering plate is arranged in the other region, the air inlet filtering plate is correspondingly connected with an air inlet of the filter screen, the air outlet filtering plate is connected with an air outlet of the filter screen, a ball float valve is arranged at the bottom of the drum and connected with an oil pipe, the oil pipe extends to the bottom of the drum, an oil outlet is arranged on the cover plate, and the air outlet of the filter screen and the air inlet of the filter screen.

3. The system for detecting the air-conditioning electric compressor of the new energy automobile with oil and gas purification as claimed in claim 2, wherein the ball float valve can be an electromagnetic valve.

4. The system for detecting the air-conditioning electric compressor of the new energy automobile with the oil gas purification function as claimed in claim 1, wherein the air inlet filter plate is a stainless steel metal plate with a dense mesh or a dense textile filter membrane.

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