CN2722218Y - Performance testing table of air conditioner compressor on vehicle - Google Patents
Performance testing table of air conditioner compressor on vehicle Download PDFInfo
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- CN2722218Y CN2722218Y CN 200420023373 CN200420023373U CN2722218Y CN 2722218 Y CN2722218 Y CN 2722218Y CN 200420023373 CN200420023373 CN 200420023373 CN 200420023373 U CN200420023373 U CN 200420023373U CN 2722218 Y CN2722218 Y CN 2722218Y
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 238000011056 performance test Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a performance testing table and testing method of air conditioner compressor on vehicle based on the PLC, relating to a testing table and testing method, including a controlling device, a displaying device and a working device. An evacuating device, an oil injecting device, a nitrogen injecting device, an operating device and a testing device for various performances are integrated and uniformly controlled by the PLC. The performance test of the air conditioner compressor on vehicle is automatically finished, and the performance test includes the evacuating leakage test, the charging efficiency test, the high voltage leakage test and the clutch test. The testing state is displayed on line through a display screen and a numeral display meter to proceed the audible and light alarm of the abnormal situation. Simultaneously, the testing table provides hand mode, and all the devices can be hand controlled through a face-plate button under the hand mode.
Description
Technical field
It is performance test bed that the utility model relates to a kind of automobile air conditioner compressor, and especially, it is performance test bed to relate to a kind of automobile air conditioner compressor based on PLC.
Background technology
Automobile air conditioner compressor mostly is oblique tray type compressor or scroll compressor, has clutch coupling and belt pulley usually.The running of compressor realizes by clutch coupling (linking to each other with compressor main shaft) adhesive belt pulley (by driven by motor).Leakage situation, charging efficiency and clutch coupling performance are several Key Quality Indicator of automobile air conditioner compressor, and compressor must carry out strict test to these several performances before dispatching from the factory.The currently used method of testing of automobile air conditioner compressor producer is mainly: keep certain pressure in compressor, put it in the water, see if there is the bubble generation and judge whether gas leakage with this; Make the compressor test working also whether qualified by the load cell test charging efficiency; Set the continuous break-make clutch coupling of certain time interval, observe the clutch operating situation and listen the clutch coupling sound to judge whether clutch coupling is qualified by the tester.Existing these method of testing man's activities are bigger, and degree of accuracy is not high enough, and every test independently carries out, and need artificial transition each other, and test speed can't effectively improve, and often can't satisfy the production demand.
The utility model content
The purpose of this utility model is to provide a kind of automobile air conditioner compressor based on PLC performance test bed.This purpose is achieved through the following technical solutions, and test board comprises control device, display device and equipment, it is characterized in that, control device comprises PLC, panel button, mode conversion switch; Display device comprises display screen and three digital display meters, and display screen links to each other with PLC, instant playback test process and each equipment current state; Three digital display meters link to each other the rotating speed of instant playback vacuum tightness, pressure and variable-frequency motor respectively with vacuum tightness transmitter, pressure unit, frequency converter; Equipment comprises vacuum extractor, oiling device, notes nitrogen device, rotating device and pick-up unit, and described equipment is by the unified control of PLC.Described vacuum means is changed to vacuum pump; Described oiling device is a filling pump; Described notes nitrogen device is a nitrogen cylinder; Described rotating device is made up of motor, belt pulley, belt and frequency converter; Described pick-up unit is vacuum tightness transmitter, pressure unit, current transducer and alarm; Described test board also comprises pneumatic stopping valve, two-position three way electric control reversing valve and connecting tube.
The utility model can be finished the performance test of automobile air conditioner compressor automatically, and the centre need not manual intervention, has shortened the test duration greatly, proving installation degree of accuracy height, and test result is accurately and reliably.Test process is visual, and abnormal conditions are swift in response.Test board is multiple functional, and the integrated level height is simple to operation, and flexible design, and extendability is strong.The utility model is particularly suitable for the big automobile air conditioner compressor manufacturer of turnout.
Description of drawings
Fig. 1 is the utility model block diagram of system;
Fig. 2 is the utility model equipment synoptic diagram;
Fig. 3 is the utility model PLC hardware design block diagram;
Fig. 4 is the utility model PLC control main program flow chart.
Embodiment
Elaborate below in conjunction with accompanying drawing.
Fig. 1 has provided the block diagram of system of the present utility model.PLC is an automaton, and by carrying out inner automatic control program, the Control work device is tested automatically.PLC and display screen both-way communication: by automatic testing process instant playback on display screen of PLC program decision; By display screen automatic test parameter is set.Panel button is a manual overvide, by response manual operation Control work device.Mode conversion switch decision control model.By the switching of mode conversion switch, with PLC automatically control or the manual control action of panel button in equipment.Equipment comprises variable-frequency motor, vacuum pump, filling pump, pneumatic stopping valve, transmitter etc.The collaborative work under selected control model of these devices is carried out every performance test to compressor.Test data shows by digital display meter.
Fig. 2 has provided equipment synoptic diagram of the present utility model.1 is compressor among the figure, has clutch coupling and belt pulley on the compressor; 2 is motor, and 3 is frequency converter, and frequency converter links to each other with motor, and 4 is belt pulley, and 5 is clutch switch, and the driven by motor belt pulley rotates, thereby drives compressor main shaft by clutch coupling adhesive belt pulley, makes compressor operation; 6 is filling pump, and 7 is oil groove, and filling pump keeps often opening in actual motion; 8 is vacuum pump, also keeps often opening; 9 is high-pressure nitrogen bottle; 10 is current transducer, directly links to each other with motor, measures current of electric; 11 is pressure unit, all links to each other with air inlet, gas exhaust piping; 12 is the vacuum tightness transmitter, links to each other with gas exhaust piping; 13-20 is a pneumatic stopping valve, controls the break-make of each pipeline; Air intake opening, exhausr port, the pouring orifice of the corresponding compressor of three pipelines of upper, middle and lower.
Fig. 3 is the utility model PLC hardware design block diagram.The input and output of PLC are: 3 digital quantity inputs, from 2 control knobs (beginning, end) and mode conversion switch; 3 analog quantity inputs from pressure unit, vacuum tightness transmitter, current transducer, are 4～20mA current signal respectively.The switch of 13 digital quantity output control 8 pneumatic stopping valves, motor, vacuum pump, filling pump, clutch coupling and alarms; 1 analog quantity is output as the motor speed setting value, and the current signal of 4～20mA outputs to the Frequency Converter Control motor speed.By hardware design as shown in the figure, the PLC program just can be unified control to the running status of all working device, allows their coordination operations, finishes every test.
Fig. 4 has provided the process flow diagram of PLC master routine.Program is at first carried out initialization, promptly according to each variable state zone bit is set when PLC powers up.Initialization is only carried out in first scan period.Then the input signal according to mode conversion switch carries out the pattern judgement, if manual mode is then carried out the manual mode subroutine, all variablees that reset are not carried out any automatic test instruction, and control knob is invalid automatically, the idle running of PLC program.If automatic mode is then carried out the test preparation instruction, wait for that control knob starts test.Press back test beginning automatically at " beginning " control knob.Automatically each step of test is a subroutine, and each step program is called in master routine successively.If every test is all qualified, then finish this test automatically, each device is replied standby condition.If a certain test failure midway, then sound and light alarm, and test is ended at once, keeps current alarm condition, is convenient to the tester and searches reason.Stop to report to the police and finishing this test and must press " end " control knob.
According to shown in Figure 2, by the integration configuration of each equipment and soft, the hardware design of PLC, the utility model finally is achieved as follows the automobile air conditioner compressor auto test flow, and filling pump 6 and vacuum pump 8 keep often opening in test process:
(1) vacuum leak test: drive valve 13,14,20; Testing vacuum tightness when vacuum tightness transmitter 12 is-0.088～-close valve 14 during 0.090MPa; Time-delay 3s final vacuum degree transmitter 12 test vacuum tightness drop-out value:＜0.001MPa are qualified;＞0.001MPa reports to the police; Close valve 13,20.
(2) oiling: drive valve 15, close valve 19; Valve 19 is driven in oiling to 110 ± 10ml, closes valve 15.
(3) annotate nitrogen: drive valve 16,18; When testing pressure for 0.2MPa, pressure unit 11 closes valve 16,18.
(4) charging efficiency and high-pressure leakage test: drive motor 2, drive valve 17, connect clutch switch 5; Cut-off clutch switch 5 when pressure unit 11 is tested pressure and is 0.9MPa; Pressure unit 11 test pressure drop-out value:＜0.06MPa behind the time-delay 3s, qualified＞0.06MPa, report to the police; Close valve 17.
(5) clutch coupling test: drive valve 13; Connect clutch switch 5, keep 0.2s, disconnect 0.2s then, connect 0.2s again, disconnect 0.2s again, repeat altogether 50 times; Current transducer 10 testing of electric motors electric currents change: electric current changing value＞3A between the break-make each time is qualified;＜3A reports to the police; Close valve 13, close motor 2.
The foregoing description is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (7)
1, a kind of automobile air conditioner compressor based on PLC is performance test bed, comprises control device, display device and equipment, it is characterized in that,
Control device comprises PLC, panel button, mode conversion switch;
Display device comprises display screen and three digital display meters, and display screen links to each other with PLC, instant playback test process and each equipment current state; Three digital display meters link to each other the rotating speed of instant playback vacuum tightness, pressure and variable-frequency motor respectively with vacuum tightness transmitter, pressure unit, frequency converter;
Equipment comprises vacuum extractor, oiling device, notes nitrogen device, rotating device and pick-up unit, and described equipment is by the unified control of PLC.
2, test board according to claim 1 is characterized in that, described vacuum means is changed to vacuum pump.
3, test board according to claim 1 is characterized in that, described oiling device is a filling pump.
4, test board according to claim 1 is characterized in that, described notes nitrogen device is a nitrogen cylinder.
5, test board according to claim 1 is characterized in that, described rotating device comprises motor, belt pulley, belt and frequency converter.
6, test board according to claim 1 is characterized in that, described pick-up unit comprises vacuum tightness transmitter, pressure unit, current transducer and alarm.
7, test board according to claim 1 is characterized in that, described test board also comprises pneumatic stopping valve, two-position three way electric control reversing valve and connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023373 CN2722218Y (en) | 2004-06-01 | 2004-06-01 | Performance testing table of air conditioner compressor on vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023373 CN2722218Y (en) | 2004-06-01 | 2004-06-01 | Performance testing table of air conditioner compressor on vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN2722218Y true CN2722218Y (en) | 2005-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023373 Expired - Lifetime CN2722218Y (en) | 2004-06-01 | 2004-06-01 | Performance testing table of air conditioner compressor on vehicle |
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| CN (1) | CN2722218Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100594319C (en) * | 2008-04-29 | 2010-03-17 | 郑卫星 | Industry liquid gas storage tank cavity fuel injection nitrogen charging rust protection method and apparatus |
| CN101303271B (en) * | 2007-12-29 | 2011-03-30 | 安徽昊方机电股份有限公司 | Automobile air conditioner electromagnetic clutch response time detector |
| CN102062699A (en) * | 2010-11-25 | 2011-05-18 | 奇瑞汽车股份有限公司 | Vehicle air-conditioning system pressure test device |
| CN103291598A (en) * | 2013-05-07 | 2013-09-11 | 福州聚升汽车销售服务有限公司 | Multifunctional auto air conditioning compressor testing platform |
| CN103674587A (en) * | 2012-09-13 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Test system and method for detection of air conditioning system |
| CN104048829A (en) * | 2014-07-07 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Air conditioner compressor loading device in engine test |
| CN104914844A (en) * | 2014-03-11 | 2015-09-16 | 上海通用汽车有限公司 | Test system for air conditioner compressor controller of fuel cell automobile |
| CN110793802A (en) * | 2019-11-28 | 2020-02-14 | 中国科学院工程热物理研究所 | Double-closed indirect cooling compressor experiment system |
-
2004
- 2004-06-01 CN CN 200420023373 patent/CN2722218Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303271B (en) * | 2007-12-29 | 2011-03-30 | 安徽昊方机电股份有限公司 | Automobile air conditioner electromagnetic clutch response time detector |
| CN100594319C (en) * | 2008-04-29 | 2010-03-17 | 郑卫星 | Industry liquid gas storage tank cavity fuel injection nitrogen charging rust protection method and apparatus |
| CN102062699A (en) * | 2010-11-25 | 2011-05-18 | 奇瑞汽车股份有限公司 | Vehicle air-conditioning system pressure test device |
| CN103674587A (en) * | 2012-09-13 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Test system and method for detection of air conditioning system |
| CN103674587B (en) * | 2012-09-13 | 2016-04-20 | 中车青岛四方机车车辆股份有限公司 | Air-conditioning system detection experiment system and test method |
| CN103291598A (en) * | 2013-05-07 | 2013-09-11 | 福州聚升汽车销售服务有限公司 | Multifunctional auto air conditioning compressor testing platform |
| CN104914844A (en) * | 2014-03-11 | 2015-09-16 | 上海通用汽车有限公司 | Test system for air conditioner compressor controller of fuel cell automobile |
| CN104914844B (en) * | 2014-03-11 | 2019-01-18 | 上海通用汽车有限公司 | The test macro of the air conditioner compressed machine controller of fuel cell car |
| CN104048829A (en) * | 2014-07-07 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Air conditioner compressor loading device in engine test |
| CN110793802A (en) * | 2019-11-28 | 2020-02-14 | 中国科学院工程热物理研究所 | Double-closed indirect cooling compressor experiment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |