CN101793615A - Compression-strength testing device of automobile air conditioning evaporator - Google Patents
Compression-strength testing device of automobile air conditioning evaporator Download PDFInfo
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- CN101793615A CN101793615A CN201010103533A CN201010103533A CN101793615A CN 101793615 A CN101793615 A CN 101793615A CN 201010103533 A CN201010103533 A CN 201010103533A CN 201010103533 A CN201010103533 A CN 201010103533A CN 101793615 A CN101793615 A CN 101793615A
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- evaporator
- solenoid valve
- valve
- time relay
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 15
- 230000001351 cycling effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 125000004122 cyclic group Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
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Abstract
The invention discloses a compression-strength testing device of an automobile air conditioning evaporator, comprising an air switch, a time relay, a solenoid valve, a low-pressure filter reducing valve, a high-pressure filter reducing valve and the like, wherein the time relay controls the solenoid valve commutating period to control the switching on and off conversion of the air paths of the low-pressure filter reducing valve and a high-pressure filter reducing valve; the low-pressure filter reducing valve fills specified low-pressure air into a tested evaporator, and the high-pressure filter reducing valve fills specified high-pressure air into the tested evaporator. The compression-strength testing device of an automobile air conditioning evaporator of the invention can carry out the compression-strength test to the air conditioning evaporator, can accurately test the compression strength of the air conditioning evaporator and is suitable for automobiles provided with the automobile air conditioning evaporator.
Description
Technical field
The invention belongs to the proving installation technical field, be specifically related to a kind of compression-strength testing device of automobile air conditioning evaporator.
Background technology
According to the requirement to automobile air-conditioning evaporator, automobile air-conditioning evaporator will carry out the compressive resistance test, does not also have this testing equipment at present, can not carry out the compressive resistance test to automobile air-conditioning evaporator.
Summary of the invention
For overcoming the above-mentioned problems in the prior art, the invention provides a kind of compression-strength testing device of automobile air conditioning evaporator, this device is by hardware controls, cost is low, easy to operate, easy-maintaining.
Technical scheme of the present invention: a kind of compression-strength testing device of automobile air conditioning evaporator, this device comprise air switch, the time relay, solenoid valve, low pressure filtering pressure reducing valve and high-pressure filteration reduction valve;
The air intake opening of described two-position-five-way solenoid valve connects high-pressure air pipe, first gas outlet of solenoid valve is connected to the upper orifice gas joint of described automobile air-conditioning evaporator by low pressure filtering pressure reducing valve and threeway, and second gas outlet of this solenoid valve is connected to the upper orifice gas joint of described automobile air-conditioning evaporator by high-pressure filteration reduction valve and threeway;
Described solenoid valve solenoid is connected to AC power by the described time relay and air switch, and described air switch is used to control the energising and the outage of AC power;
The described time relay is used for described solenoid valve commutation control;
Described solenoid valve is used for the gas path on-off conversion to low pressure filtering pressure reducing valve, high-pressure filteration reduction valve and described high-pressure air pipe; Wherein, be that the evaporator of being tested injects the low-pressure gas of stipulating by described low pressure filtering pressure reducing valve; By described high-pressure filteration reduction valve is that the evaporator of being tested injects the gases at high pressure of stipulating.
Effect of the present invention: adopt the compression-strength testing device of automobile air conditioning evaporator of being invented, solved and do not had the problem that this testing apparatus can not be done the compressive resistance test to automobile air-conditioning evaporator, energy is the compressive resistance of testing automobile A/C evaporator accurately, and the present invention is applicable to the automobile that automobile air-conditioning evaporator is housed.The present invention is simple in structure, easy to manufacture, Operation and maintenance convenient.
Description of drawings
Fig. 1 compression-strength testing device of automobile air conditioning evaporator structural drawing;
Fig. 2 compression-strength testing device of automobile air conditioning evaporator schematic diagram.
Embodiment
Fig. 1 is the compression-strength testing device of automobile air conditioning evaporator structural drawing, and this proving installation comprises low pressure filtering pressure reducing valve 1, two-position-five-way solenoid valve 3, two-position-five-way solenoid valve draft tube 4, the time relay 5, air switch 6, high-pressure filteration reduction valve 8, threeway 9 and connects evaporator upper orifice gas joint 10 etc.With tracheae 2 low pressure filtering pressure reducing valve 1, two-position-five-way solenoid valve 3, two-position-five-way solenoid valve draft tube 4, high-pressure filteration reduction valve 8, threeway 9 are coupled together by the connected mode among Fig. 1; With power lead 7 solenoid valve 3, the time relay 5, air switch 6 are electrically connected.
The time relay of the present invention is in order to the commutating period of control electromagnetic valve, it is the HHS6R cycle time relay, the a pair of normally opened contact and a pair of normally closed contact of the time relay are interlockings, as being set to S1 and S2 cycling time, when the time relay is worked, the normally opened contact of the time relay is outage S1 (the normally closed contact energising S1 of the time relay) earlier, is recycled to the normally opened contact energising S2 (the normally closed contact outage S2 of the time relay) of the time relay then;
Solenoid valve of the present invention is a two-position-five-way solenoid valve, in order to switch the gas circuit of leading to low pressure filtering pressure reducing valve or high-pressure filteration reduction valve;
The low pressure test (LPT) air pressure that low pressure filtering pressure reducing valve of the present invention is stipulated to the evaporator input:
The high-potting air pressure that high-pressure filteration reduction valve of the present invention is stipulated to the evaporator input:
Air switch of the present invention is used for controlling the break-make of AC power.
According to testing requirements, evaporator 11 is fixed, to the inner fills with water of core body, when inflation is pressurized to 1380kPa (gauge pressure) again, the variation of range estimation core.Continue to be pressurized to 2.94MPa then and keep 3min, the variation of range estimation core.
Before the test, the evaporator lower end mouth of pipe of being tested is blocked with plug 12, from the evaporator upper orifice to the inner fills with water of evaporator 11 core bodys, using pipe gas joint 10 couples together the threeway 9 of automobile evaporator compression-strength testing device and evaporator upper orifice, the high pressure gas interface of solenoid valve draft tube 4 with the test site is coupled together, the attaching plug of air switch 6 insert the test site～the 220V socket in, just can carry out the automobile evaporator compressive resistance and test.
Fig. 2 is an automobile evaporator compression-strength testing device schematic diagram
In Fig. 2, air switch 6 inserts test site～220V supply socket by attaching plug, for the automobile evaporator compression-strength testing device provides AC power.7 pin of the time relay 5 link to each other with the phase line that air switch 6 connects AC power, 2 pin of the time relay 5 link to each other with the ground wire that air switch 6 connects AC power, one termination, 7 pin of its solenoid, another termination 2 pin of solenoid, a contact of a pair of normally opened contact of the time relay 5 connects 8 pin, another contact of normally opened contact connects 6 pin, and 8 pin link to each other with the AC power phase line.6 pin of the time relay 5 link to each other with an end of two-position-five-way solenoid valve coil, and the other end of two-position-five-way solenoid valve 3 coils links to each other with the ground wire of air switch 6.Press the gas circuit of Fig. 2, the usefulness tracheae is connected two-position-five-way solenoid valve 3, low pressure filtering pressure reducing valve 1, high-pressure filteration reduction valve 8, threeway 9 and last pipe gas joint 10.
Before the test, the evaporator 11 lower end mouths of pipe of being tested are blocked with plug 12, from evaporator 11 upper orifices to the inner fills with water of evaporator 11 core bodys, using pipe gas joint 10 couples together the threeway 9 of automobile evaporator compression-strength testing device and evaporator 11 upper orifices, the high pressure gas interface of solenoid valve draft tube 4 with the test site is coupled together, the attaching plug of air switch insert the test site～the 220V socket in, be set to 3min and 3min the cycling time of the time relay.During test, press air switch and connect the testing apparatus power supply, press high-voltage switch gear and connect the testing apparatus gas circuit, just can carry out the automobile air-conditioning evaporator compressive resistance and test.
Its principle of work is:
When air switch energized → time relay solenoid begin to switch on normally opened contact of 3min → time relay disconnects 3min, this moment, the two-position-five-way solenoid valve coil was not switched on, the A port of high pressure gas by two-position-five-way solenoid valve → enter low pressure filtering pressure reducing valve → enter threeway → enter the evaporator upper orifice keeps 3min to evaporator inflation pressurization (by adjusting low pressure filtering pressure reducing valve air pressure) to 1380kPa, the time relay 3min that circulates again then, this moment the time relay normally opened contact connect 3min → two-position-five-way solenoid valve coil electricity make valve core of the electromagnetic valve move commutation →, the B port of high pressure gas by two-position-five-way solenoid valve → enter high pressure filter → enter threeway → enter evaporator upper orifice to evaporator inflation pressurization (by adjusting high-pressure filteration reduction valve air pressure) to 2.94MPa, keep 3min, be a circulation this moment, in this cyclic process, the variation of range estimation expansion core body structure.After the circulation of low pressure and high pressure is finished,, press air switch and cut off the electricity supply; Turn off the high pressure gas switch and cut off source of the gas, end of test (EOT).
Claims (3)
1. compression-strength testing device of automobile air conditioning evaporator, this device comprises air switch (6), the time relay (5), solenoid valve (3), low pressure filtering pressure reducing valve (1) and high-pressure filteration reduction valve (8); It is characterized in that:
The air intake opening of described two-position-five-way solenoid valve (3) connects high-pressure air pipe, first gas outlet of solenoid valve (3) is connected to the upper orifice gas joint (10) of described automobile air-conditioning evaporator by low pressure filtering pressure reducing valve (1) and threeway, and second gas outlet of this solenoid valve (3) is connected to the upper orifice gas joint (10) of described automobile air-conditioning evaporator by high-pressure filteration reduction valve (8) and threeway;
Described solenoid valve (3) solenoid is connected to AC power by the described time relay (5) and air switch (6), and described air switch (6) is used to control the energising and the outage of AC power;
The described time relay (5) is used for described solenoid valve (3) commutation control;
Described solenoid valve (3) is used for the gas path on-off conversion to low pressure filtering pressure reducing valve (1), high-pressure filteration reduction valve (8) and described high-pressure air pipe;
Wherein, be that the evaporator of being tested injects the low-pressure gas of stipulating by described low pressure filtering pressure reducing valve (1); By described high-pressure filteration reduction valve is that the evaporator of being tested injects the gases at high pressure of stipulating.
2. compression-strength testing device of automobile air conditioning evaporator according to claim 1 is characterized in that: the described time relay is preferably cycle time relay;
The preferred two-position-five-way solenoid valve of described solenoid valve (3) has the function that two gas circuits of control are switched.
3. compression-strength testing device of automobile air conditioning evaporator according to claim 2 is characterized in that:
Be 3min/3min the cycling time of the described time relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101035334A CN101793615B (en) | 2010-01-29 | 2010-01-29 | Compression-strength testing device of automobile air conditioning evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101035334A CN101793615B (en) | 2010-01-29 | 2010-01-29 | Compression-strength testing device of automobile air conditioning evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793615A true CN101793615A (en) | 2010-08-04 |
| CN101793615B CN101793615B (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101035334A Expired - Fee Related CN101793615B (en) | 2010-01-29 | 2010-01-29 | Compression-strength testing device of automobile air conditioning evaporator |
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| Country | Link |
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| CN (1) | CN101793615B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454712A (en) * | 2014-11-21 | 2015-03-25 | 广西智通节能环保科技有限公司 | Pneumatic loading system |
| CN112336949A (en) * | 2019-08-08 | 2021-02-09 | 武汉大学 | Pneumatic needleless injection driving air pressure switching device and using method thereof |
-
2010
- 2010-01-29 CN CN2010101035334A patent/CN101793615B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454712A (en) * | 2014-11-21 | 2015-03-25 | 广西智通节能环保科技有限公司 | Pneumatic loading system |
| CN112336949A (en) * | 2019-08-08 | 2021-02-09 | 武汉大学 | Pneumatic needleless injection driving air pressure switching device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101793615B (en) | 2011-11-09 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 |