CN102636315A - Helium-filling vacuum leakage detection system for outdoor unit of air conditioner - Google Patents

Helium-filling vacuum leakage detection system for outdoor unit of air conditioner Download PDF

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Publication number
CN102636315A
CN102636315A CN2012101188790A CN201210118879A CN102636315A CN 102636315 A CN102636315 A CN 102636315A CN 2012101188790 A CN2012101188790 A CN 2012101188790A CN 201210118879 A CN201210118879 A CN 201210118879A CN 102636315 A CN102636315 A CN 102636315A
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China
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helium
vacuum
vacuum tank
leak
outdoor unit
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CN2012101188790A
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CN102636315B (en
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颜新
王震
马文军
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Shanghai Sharp Electronics Co Ltd
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Shanghai Sharp Electronics Co Ltd
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Abstract

The invention relates to a helium-filling vacuum leakage detection system for an outdoor unit of an air conditioner. The helium-filling vacuum leakage detection system comprises a tooling plate, vacuum boxes, a pre-pumping pump group, a main-pumping pump group, a leakage detection pump group, a leakage detector, helium removing valves, gas discharging valves and leakage detection valves; an input passage consisting of shifters and multi-speed chain conveying belts is arranged at the entrances of the vacuum boxes; an output passage consisting of shifters and multi-speed chain conveying belts is arranged at the exits of the vacuum boxes; the tooling plate is arranged on the input passage and can reach the output passage by passing through the vacuum boxes along the input passage; rolling shafts connected with the input passage are arranged on the bottom faces of the cavity bodies of the vacuum boxes; the cavity bodies of the vacuum boxes are connected with the pre-pumping pump group through pre-pumping valves and are connected with the main-pumping pump group through main-pumping valves; the cavity bodies of the vacuum boxes are further connected with the leakage detector through the leakage detection valves; the cavity bodies of the vacuum boxes are further connected with a gas discharging pipeline, and the gas discharging valves are arranged on the gas discharging pipeline; the cavity bodies of the vacuum boxes are connected with a nitrogen pipeline, and the helium removing valves are arranged on the nitrogen pipeline; and the leakage detector is connected with an alarming device. The helium-filling vacuum leakage detection system for the outdoor unit of the air conditioner has the advantage of ensuring the overall quality of the air conditioner.

Description

Air-conditioner outdoor unit fills the helium vacuum leak detecting system
Technical field
The present invention relates to air-conditioner outdoor unit and fill the helium technical field, particularly relate to a kind of air-conditioner outdoor unit and fill the helium vacuum leak detecting system.
Background technology
Outdoor machine of air conditioner mainly contains parts such as condenser, compressor, two four-way copper pipe parts, Denso control, fan, motor and forms; When condenser, compressor, two four-way copper pipe parts etc. after production line is welded into the complete circulation system; Must carry out Leak Detection to it, to guarantee the quality of air-conditioning.In most air-conditioning production firm, the complete machine of air conditioner circulation system being detected at present, is the technology mode that adopts manual inspection, is that up to a hundred solder joints carry out detection one by one with helium mass spectrometer leak detector to tens promptly, and not only production efficiency is low, and loss is high.Helium inspection under vacuum state is also just carried out single detection to big portion article such as condensers, can't guarantee the quality of complete machine.Therefore have following problem in the prior art: the technology mode of manual inspection is adopted in (1), and labour intensity is big, and production efficiency is low; (2) technology mode of employing manual inspection, loss is high, and the quality rate of complete machine is low; (3) can only artificially distinguish and letter sorting underproof air conditioner.
Summary of the invention
Technical matters to be solved by this invention provides a kind of air-conditioner outdoor unit and fills the helium vacuum leak detecting system, can guarantee the air conditioner quality.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of air-conditioner outdoor unit to fill the helium vacuum leak detecting system; Comprise frock plate, vacuum tank, forepump group, main pump group, leak detection pump group, leak locator, clear helium valve, air release and the leak detector valve taken out; Said vacuum tank inlet is provided with the input channel of being made up of divide a word with a hyphen at the end of a line device and double-speed chain travelling belt, and outlet is provided with the output channel of being made up of divide a word with a hyphen at the end of a line device and double-speed chain travelling belt; Said frock plate is arranged on the input channel, and can arrive said output channel through vacuum tank along input channel; The cavity of said vacuum tank links to each other with the forepump group through taking out valve in advance, takes out the pump group and links to each other with main through the main valve of taking out; The cavity of said vacuum tank also links to each other with leak locator through leak detector valve; The cavity of said vacuum tank also links to each other with atmospheric pipe, and said atmospheric pipe is provided with air release; The cavity of said vacuum tank links to each other with nitrogen pipeline, and said nitrogen pipeline is provided with said clear helium valve; Said leak locator links to each other with warning device.
Said input channel one side is provided with and vacuumizes station; The said station that vacuumizes is provided with the interconnective evacuator and first rapid-acting coupling.
Said input channel one side also is provided with the nitrogen filling station; Said nitrogen filling station is provided with the interconnective automatic nitrogen charging device and second rapid-acting coupling.
Be provided with in the said vacuum tank and be used to detect first optoelectronic switch whether complete machine puts in place; The bottom surface of the cavity of said vacuum tank is provided with respectively the axis of rolling that joins with input channel and output channel.
Said frock plate is provided with the turnover panel recognition device; Said turnover panel recognition device comprises drop in leaf, base plate and flexible clamp piece, and said base plate is installed on the said frock plate through register pin, and said base plate links to each other with turnover panel through rotating shaft, is provided with flexible clamp piece between said turnover panel and the base plate; Said output channel is provided with bad complete machine identification control device, and said bad complete machine identification control device receives the signal of said leak locator; Said bad complete machine identification control device comprises the turnover panel cylinder, makes the bar and second optoelectronic switch; Said turnover panel cylinder links to each other with the said bar of beating through rotating shaft, and the said bar of beating is used to hit down the turnover panel on the said turnover panel recognition device; Whether said second optoelectronic switch is used to detect said frock plate and puts in place.
Said output channel rear end is provided with bad complete machine sorting equipment; Said bad complete machine sorting equipment comprises support, the 3rd optoelectronic switch and electrode, and said support is fixed on the output channel rear end, and said the 3rd optoelectronic switch and electrode are installed on the said support; Whether said the 3rd optoelectronic switch is used to detect said frock plate and puts in place; Whether the turnover panel that said electrode is used to detect on the said turnover panel recognition device is hit down.
Said vacuum tank is four.
Said input channel is provided with near switch; Saidly be used to detect the distance of frock plate apart from vacuum tank near switch, said near switch detect the frock plate near the time send signal, the shift unit of said input channel is sent into said frock plate in the empty vacuum tank.
Beneficial effect
Owing to adopted above-mentioned technical scheme; The present invention compared with prior art; Have following advantage and good effect: the present invention has realized the complete machine technology of hunting leak automatically, has improved production efficiency greatly, and the present invention has also realized the automatic helium inspection of complete machine under vacuum state; Reduce loss, improved the quality of complete machine.The present invention reports to the police automatically to underproof air conditioner and sorts, and has realized robotization, Flexible Production.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of vacuum tank among the present invention;
Fig. 3 is the structural representation of turnover panel recognition device among the present invention;
Fig. 4 is the structural representation of bad complete machine identification control device among the present invention;
Fig. 5 is a bad complete machine sorting equipment among the present invention;
Fig. 6 is a pneumatic diagram of the present invention.
Reference numeral among Fig. 6 is seen table 1:
Code name Title Code name Title
PM1 SV300 forepump 1 VZ1C The C case is taken out valve in advance
PM2 SV300 forepump 2 VZ2C C case master takes out valve
PM3 SV300 forepump 3 VZ3C C case leak detector valve
PM4 SV300 forepump 4 VZ4C C case air release
PM5 SV300 master takes out pump 1 VN1C The clear helium valve of C case
PM6 WAU2001 master takes out sieve time pump 2 VZ1D The D case is taken out valve in advance
PM7 The D60C leak detection pump VZ2D D case master takes out valve
PM8 The WAU501 leak detection pump VZ3D D case leak detector valve
PM9 WAU501 leak locator pump VZ4D D case air release
VZ1A The A case is taken out valve in advance VN1D The clear helium valve of D case
VZ2A A case master takes out valve VZ2 Public evacuation valve
VZ3A A case leak detector valve VZ3 Public leak detector valve
VZ4A A case air release VN1 Public clear helium valve
VN1A The clear helium valve of A case PLN1 A case Pirani ga(u)ge
VZ1B The B case is taken out valve in advance PLN2 B case Pirani ga(u)ge
VZ2B B case master takes out valve PLN3 C case Pirani ga(u)ge
VZ3B B case leak detector valve PLN4 D case Pirani ga(u)ge
VZ4B B case air release Helium leak detector The LDS2010 leak locator
VN1B The clear helium valve of B case
Table 1
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The present invention relates to a kind of air-conditioner outdoor unit and fill the helium vacuum leak detecting system; As shown in Figure 1; Comprise the frock plate 3, vacuum tank 1, forepump group, main pump group, leak detection pump group, leak locator 2, clear helium valve, air release and the leak detector valve taken out that are used to place air conditioner; On the said frock plate 3 air conditioner is installed, said vacuum tank 1 inlet is provided with the input channel of being made up of divide a word with a hyphen at the end of a line device 6 and double-speed chain travelling belt 74, and outlet is provided with the output channel of being made up of divide a word with a hyphen at the end of a line device 6 and double-speed chain travelling belt 75; Said frock plate 3 is arranged on the input channel 4, and can arrive said output channel 5 through vacuum tank 1 along input channel 4; The cavity of said vacuum tank 1 links to each other with the forepump group through taking out valve in advance, takes out the pump group and links to each other with main through the main valve of taking out; The cavity of said vacuum tank 1 also links to each other with leak locator 2 through leak detector valve; The cavity of said vacuum tank 1 also links to each other with atmospheric pipe, and said atmospheric pipe is provided with air release; The cavity of said vacuum tank 1 links to each other with nitrogen pipeline, and said nitrogen pipeline is provided with said clear helium valve; Said leak locator 2 links to each other with warning device 14.Said input channel 4 one sides are provided with and vacuumize station; The said station that vacuumizes is provided with the interconnective evacuator 8 and first rapid-acting coupling.Said input channel 4 one sides also are provided with the nitrogen filling station; Said nitrogen filling station is provided with the interconnective automatic nitrogen charging device 9 and second rapid-acting coupling.
Wherein, said vacuum tank 1 is four.As shown in Figure 2, be provided with in the said vacuum tank 1 and be used to detect first optoelectronic switch 103 whether complete machine puts in place.Be convex cavity 101 in the said vacuum tank 1 by 104 sealings of male seal bar; The bottom surface of said convex cavity 101 is provided with respectively the axis of rolling 102 that joins with input channel 4 and output channel 5, and said frock plate 3 can get into convex cavitys 101 through input channel 4.The both sides of said vacuum tank 1 are equipped with guide rail 106, on the said guide rail 106 vacuum chamber door 105 are installed, and said vacuum chamber door 105 is by locking cylinder 107 controls, and under the control of locking cylinder 107, said vacuum chamber door 105 can move up and down along guide rail 106.
Said frock plate 3 is provided with turnover panel recognition device 10.As shown in Figure 3; Said turnover panel recognition device 10 comprises drop in leaf 201, base plate 202 and flexible clamp piece 203; Said base plate 202 is installed on the said frock plate 3 through register pin 204; Said base plate 202 links to each other with drop in leaf 201 through rotating shaft 205, is provided with flexible clamp piece 203 between said drop in leaf 201 and the base plate 202.Said output channel 5 is provided with bad complete machine identification control device 11.As shown in Figure 4, said bad complete machine identification control device 11 receives the signal of said leak locator 2; Said bad complete machine identification control device 11 comprises turnover panel cylinder 301, makes the bar 302 and second optoelectronic switch 303; Said turnover panel cylinder 301 links to each other with the said bar 302 of beating through rotating shaft 304, and the said bar 302 of beating is used to hit down the drop in leaf 201 on the said turnover panel recognition device 10; Whether said second optoelectronic switch 303 is used to detect said frock plate 3 and puts in place.
Said input channel 4 is provided with near switch 13; Saidly be used to detect the distance of frock plate 3 apart from vacuum tank 1 near switch 13, said near switch 13 detect frock plate 3 near the time send signal, the shift unit 6 of said input channel 4 is sent into said frock plate 3 in the empty vacuum tank 1.
Said output channel 5 rear ends are provided with bad complete machine sorting equipment 12.As shown in Figure 5, said bad complete machine sorting equipment 12 comprises support 401, the 3rd optoelectronic switch 402 and electrode 403, and said support 401 is fixed on output channel 5 rear ends, and said the 3rd optoelectronic switch 402 is used to be installed in said support 401 with electrode 403; Whether said the 3rd optoelectronic switch 402 is used to detect said frock plate 3 and puts in place; Whether the turnover panel 201 that said electrode 403 is used to detect on the said turnover panel recognition device 10 is hit down.
The present invention is under vacuum state, leak hunting method and technology that complete machine outside the air conditioning chamber is carried out automatic helium leak test, and leakage detection apparatus.Simultaneously, complete machine outside the underproof air conditioning chamber is reported to the police and the technology and the device that sort automatically automatically.The present invention mainly comprises: vacuum extractor, automatically helium charging unit, turnover panel detect recognition device, complete machine is gone into an Opportunity awaiting control for linear, four casees coordinated type vacuum tanks, helium leak detector, bad complete machine warning device, bad complete machine identification control device, bad complete machine sorting equipment etc. automatically.Its production technology is following:
2.1 after the complete machine entering vacuumizes station, the rapid-acting coupling of evacuator is inserted on the air conditioner four-way valve, Automatic Extraction vacuum 10 seconds is prepared for filling helium.
2.2 after complete machine gets into the helium filling station, the rapid-acting coupling on the automatic helium charging unit is inserted on the air conditioner four-way valve, charge into helium automatically, fill helium pressure 8~12kgf/cm 2, the interior concentrations of helium of air conditioner is remained on more than 70%.
Insert on the frock plate 2.3 turnover panel is detected recognition device, dig vertical plate, the device station of dividing a word with a hyphen at the end of a line in the middle of complete machine gets into touches turnover panel near switch and detects recognition device and send signal, and a signal is gone in the request room.
2.4 four casees coordinated type vacuum tank control system are sent the room and treated a signal according to the resource priority principle, the device station of dividing a word with a hyphen at the end of a line is sent complete machine into the standby station according to signal, for the inspection of vacuum helium is prepared.
2.5 the outer formula helium leak test vacuum tank leak detection system of four casees coordinated type casees mainly contains vacuum tank A/B/C/D four casees, forepump group, mainly takes out pump group, leak detection pump group, leak locator, takes out valve, the main compositions such as valve, clear helium valve, air release and leak detector valve of taking out in advance.Four casees outer formula helium leak test vacuum tank leak detection systems of coordinated type case can be selected the working method of " single action " and " interlock "; " single action " is exactly that vacuum tank oneself carries out the vacuum leak hunting circulation; " interlock " is exactly the production vacuum leak hunting that links alternately of vacuum tank and line body; System at any time only fills and is permitted a casing and take out in advance, mainly take out and hunt leak, and system accounts for the resource priority principle to rob earlier.
Single case principle of work (is example with the A case): as shown in Figure 6, when the A case sends null signals, the complete machine of the standby station device of being divided a word with a hyphen at the end of a line ejects and moves ahead; The axis of rolling is sent into it in A case, and optoelectronic switch is located in the A case, and A case chamber door is closed; The locking cylinder lock sealing, system opens and takes out valve VZ1A in advance, and the forepump group is to casing forvacuum; When casing vacuum tightness reached 2400Pa, system closing was taken out valve VZ1A in advance, and other casings are taken out in advance.System opens the casing master again and takes out valve VZ2A, and the main pump group of taking out is led casing and vacuumized, and when casing vacuum tightness reached 60Pa, the system closing master took out valve VZ2A, and other casings is led take out.System opens casing leak detector valve VZ3A again, and leak locator begins complete machine (the leak detection standard: less than 3X10 of hunting leak -7Pam 3/ s).Qualified like the inspection of complete machine vacuum helium, then system opens air release VZ4A venting, and venting finishes and opens chamber door; See complete machine off casing; To the double-speed chain travelling belt, system sends the qualified signal of complete machine to bad complete machine identification control device, and leak locator begins other casings are hunted leak.Defective like the inspection of complete machine vacuum helium; The system alarm lamp is reported to the police and is stopped leak detection; Open clearly that helium valve VN1A and public clear helium valve VN1 carry out towards nitrogen purge pipeline, simultaneity factor is opened air release VZ4A venting, and venting finishes and opens chamber door; Complete machine is delivered to double-speed chain travelling belt defective products identification control device station, and system sends defective signal to bad complete machine identification control device.
2.6 bad complete machine identification control device is received the signal that leak detection system sends, qualified in this way signal, and the cylinder on the identification control device will not move, and complete machine is sent into the production main line.Defective in this way signal; Cylinder on the identification control device begins to-and-fro movement; The vertical plate that turnover panel on the frock plate is detected recognition device is hit down, and complete machine frock plate continues to proceed to bad complete machine sortation process, and bad complete machine sorting equipment is not received the vertical plate signal; Promptly be judged as defective complete machine, defective complete machine is sent into the maintenance subordinate line.
Be not difficult to find that the present invention has realized the complete machine technology of hunting leak automatically, has improved production efficiency greatly, the present invention has also realized the automatic helium inspection of complete machine under vacuum state, has reduced loss, the quality of raising complete machine.The present invention reports to the police automatically to underproof air conditioner and sorts, and has realized robotization, Flexible Production.

Claims (8)

1. an air-conditioner outdoor unit fills the helium vacuum leak detecting system; Comprise frock plate (3), vacuum tank (1), forepump group, main pump group, leak detection pump group, leak locator (2), clear helium valve, air release and the leak detector valve taken out; It is characterized in that; Said vacuum tank (1) inlet is provided with the input channel of being made up of device of dividing a word with a hyphen at the end of a line (6) and double-speed chain travelling belt (7) (4), and outlet is provided with the output channel of being made up of device of dividing a word with a hyphen at the end of a line (6) and double-speed chain travelling belt (7) (5); Said frock plate (3) is arranged on the input channel (4), and can arrive said output channel (5) through vacuum tank (1) along input channel (4); The cavity (101) of said vacuum tank (1) links to each other with the forepump group through taking out valve in advance, takes out the pump group and links to each other with main through the main valve of taking out;
The cavity (101) of said vacuum tank (1) also links to each other with leak locator (2) through leak detector valve; The cavity (101) of said vacuum tank (1) also links to each other with atmospheric pipe, and said atmospheric pipe is provided with air release; The cavity (101) of said vacuum tank (1) links to each other with nitrogen pipeline, and said nitrogen pipeline is provided with said clear helium valve; Said leak locator (2) links to each other with warning device (14).
2. air-conditioner outdoor unit according to claim 1 fills the helium vacuum leak detecting system, it is characterized in that, said input channel (4) one sides are provided with and vacuumize station; The said station that vacuumizes is provided with the interconnective evacuator (8) and first rapid-acting coupling.
3. air-conditioner outdoor unit according to claim 1 fills the helium vacuum leak detecting system, it is characterized in that, said input channel (4) one sides also are provided with the nitrogen filling station; Said nitrogen filling station is provided with the interconnective automatic nitrogen charging device (9) and second rapid-acting coupling.
4. air-conditioner outdoor unit according to claim 1 fills the helium vacuum leak detecting system, it is characterized in that, is provided with in the said vacuum tank (1) to be used to detect first optoelectronic switch whether complete machine puts in place; The bottom surface of the cavity (101) of said vacuum tank (1) is provided with respectively the axis of rolling (102) that joins with input channel (4) and output channel (5).
5. air-conditioner outdoor unit according to claim 1 fills the helium vacuum leak detecting system, it is characterized in that, said frock plate (3) is provided with turnover panel recognition device (10); Said turnover panel recognition device (10) comprises drop in leaf (201), base plate (202) and flexible clamp piece (203); Said base plate (202) is installed on the said frock plate (3) through register pin (204); Said base plate (202) links to each other with drop in leaf (201) through rotating shaft (205), is provided with flexible clamp piece (203) between said drop in leaf (201) and the base plate (202); Said output channel (5) is provided with bad complete machine identification control device (11), and said bad complete machine identification control device (11) receives the signal of said leak locator (2); Said bad complete machine identification control device (11) comprises turnover panel cylinder (301), makes bar (302) and second optoelectronic switch (303);
Said turnover panel cylinder (301) links to each other with the said bar (302) of beating through rotating shaft (304), and the said bar (302) of beating is used to hit down the drop in leaf (201) on the said turnover panel recognition device (10); Whether said second optoelectronic switch (303) is used to detect said frock plate (3) and puts in place.
6. air-conditioner outdoor unit according to claim 5 fills the helium vacuum leak detecting system, it is characterized in that, said output channel (5) rear end is provided with bad complete machine sorting equipment (12); Said bad complete machine sorting equipment (12) comprises support (401), the 3rd optoelectronic switch (402) and electrode (403); Said support (401) is fixed on output channel (5) rear end, and said the 3rd optoelectronic switch (402) and electrode (403) are installed on the said support (401); Whether said the 3rd optoelectronic switch (402) is used to detect said frock plate (3) and puts in place; Whether the drop in leaf (201) that said electrode (403) is used to detect on the said turnover panel recognition device (10) is hit down.
7. fill the helium vacuum leak detecting system according to the described air-conditioner outdoor unit of arbitrary claim among the claim 1-6, it is characterized in that, said vacuum tank (1) is four.
8. air-conditioner outdoor unit according to claim 7 fills the helium vacuum leak detecting system, it is characterized in that, said input channel (4) is provided with near switch (13); Saidly be used to detect the distance of frock plate (3) apart from vacuum tank (1) near switch (13); Said near switch (13) detect frock plate (3) near the time send signal, the shift unit (6) of said input channel (4) is sent into said frock plate (3) in the empty vacuum tank (1).
CN201210118879.0A 2012-04-20 2012-04-20 Helium-filling vacuum leakage detection system for outdoor unit of air conditioner Expired - Fee Related CN102636315B (en)

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CN103575484A (en) * 2013-10-15 2014-02-12 中山市维普泰克自动化设备有限公司 Leak detection machine for medicine bottles
CN104215398A (en) * 2014-08-14 2014-12-17 合肥通用机械研究院 Automatic leakage detecting device for household air conditioner finished products
CN104236802A (en) * 2014-08-29 2014-12-24 珠海格力电器股份有限公司 Leakage detecting system of air conditioners
CN104260941A (en) * 2014-08-14 2015-01-07 合肥通用机械研究院 Automatic leakage detection system for finished household air conditioner
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CN106044164A (en) * 2016-08-03 2016-10-26 钦州学院 Logistics sorting device based on scanning to identify information
CN106219185A (en) * 2016-08-25 2016-12-14 珠海格力电器股份有限公司 Staggered bridging automatic conveying device and heat exchanger leak detection device
CN107381002A (en) * 2017-06-30 2017-11-24 珠海格力智能装备有限公司 Toter and there is its air conditioner processing unit (plant)
CN108760181A (en) * 2018-06-11 2018-11-06 长沙格力暖通制冷设备有限公司 A kind of air-conditioning helium inspection line
CN112764436A (en) * 2020-12-17 2021-05-07 北京七星华创流量计有限公司 Mass flow controller detection system
CN114671232A (en) * 2022-04-08 2022-06-28 珠海格力电器股份有限公司 Tunnel type automatic box entering and exiting leakage detection system and working method thereof

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CN103575484A (en) * 2013-10-15 2014-02-12 中山市维普泰克自动化设备有限公司 Leak detection machine for medicine bottles
CN104215398A (en) * 2014-08-14 2014-12-17 合肥通用机械研究院 Automatic leakage detecting device for household air conditioner finished products
CN104260941A (en) * 2014-08-14 2015-01-07 合肥通用机械研究院 Automatic leakage detection system for finished household air conditioner
CN104260941B (en) * 2014-08-14 2016-04-06 合肥通用机械研究院 Automatic leakage detection system for finished household air conditioner
CN104236802A (en) * 2014-08-29 2014-12-24 珠海格力电器股份有限公司 Leakage detecting system of air conditioners
CN104316296A (en) * 2014-11-10 2015-01-28 浙江中博光电科技有限公司 Device and method for online detection of illumination of lamp
CN105618391B (en) * 2016-03-01 2017-08-25 爱发科东方真空(成都)有限公司 Automatic helium-leakage detecting apparatus
CN105618391A (en) * 2016-03-01 2016-06-01 爱发科东方真空(成都)有限公司 Automatic helium leakage detecting device
CN106044164A (en) * 2016-08-03 2016-10-26 钦州学院 Logistics sorting device based on scanning to identify information
CN106219185A (en) * 2016-08-25 2016-12-14 珠海格力电器股份有限公司 Staggered bridging automatic conveying device and heat exchanger leak detection device
CN106219185B (en) * 2016-08-25 2018-01-02 珠海格力电器股份有限公司 Staggeredly bridging automatic conveying device and heat exchanger leak detection device
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CN112764436A (en) * 2020-12-17 2021-05-07 北京七星华创流量计有限公司 Mass flow controller detection system
CN112764436B (en) * 2020-12-17 2023-09-05 北京七星华创流量计有限公司 Mass flow controller detection system
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