CN110579324A - Full-automatic sealing test and nitrogen filling integrated machine and control method thereof - Google Patents
Full-automatic sealing test and nitrogen filling integrated machine and control method thereof Download PDFInfo
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- CN110579324A CN110579324A CN201910919547.4A CN201910919547A CN110579324A CN 110579324 A CN110579324 A CN 110579324A CN 201910919547 A CN201910919547 A CN 201910919547A CN 110579324 A CN110579324 A CN 110579324A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 296
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 147
- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- PDMMFKSKQVNJMI-BLQWBTBKSA-N Testosterone propionate Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](OC(=O)CC)[C@@]1(C)CC2 PDMMFKSKQVNJMI-BLQWBTBKSA-N 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 173
- 238000005086 pumping Methods 0.000 claims abstract description 17
- 230000005693 optoelectronics Effects 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000001427 coherent effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
the invention discloses a full-automatic sealing test and nitrogen charging integrated machine and a control method thereof, wherein the integrated machine is suitable for performing sealing test and internal nitrogen charging on photoelectric equipment and comprises the following components: the device comprises an inflating device, a vacuumizing device, a nitrogen charging device, a first communicating pipe, a pressure sensor and a control device. One end of the first communicating pipe is communicated with the inflating device, the nitrogen charging device and the vacuumizing device, and the other end of the first communicating pipe is communicated with the photoelectric equipment. The pressure sensor is arranged on the first communicating pipe. The control device is in communication connection with the pressure sensor, the air charging device, the nitrogen charging device and the vacuum pumping device, and the control device independently controls the air charging device, the nitrogen charging device and the vacuum pumping device. The invention can realize the integration of sealing test and nitrogen filling operation, automatic and continuous completion, continuous working procedure, simple and convenient equipment operation, and can avoid the influence of human factors, thereby improving the accuracy of sealing judgment and the consistency of nitrogen filling quality.
Description
Technical Field
The invention relates to the technical field of photoelectric equipment, in particular to a full-automatic sealing test and nitrogen filling integrated machine and a control method thereof.
background
with the development of the photoelectric technology, the use scenes of the photoelectric equipment are wider and wider, such as urban security, critical area (airport, core area) monitoring, forest fire prevention and the like. The equipment is mostly used in a field scene and has a severe use environment, and in order to ensure the service life and performance indexes of the equipment, the internal photoelectric component of the equipment is required to be in a nitrogen environment for a long time, so that the equipment is required to be subjected to tightness test and nitrogen filling in the equipment in the last production and manufacturing link of the photoelectric equipment.
in the related art, the sealing test and the nitrogen charging of the photoelectric equipment are two independent processes, and need to be operated respectively, so that the efficiency is low, and the consistency of the nitrogen charging quality is poor.
Disclosure of Invention
The embodiment of the invention provides a full-automatic sealing test and nitrogen charging integrated machine and a control method thereof, which are used for solving the problems of low efficiency and low automation degree caused by the separate operation of sealing test and nitrogen charging of photoelectric equipment in the prior art.
the embodiment of the invention provides a full-automatic sealing test and nitrogen charging integrated machine, which is suitable for executing sealing test and internal nitrogen charging on photoelectric equipment and comprises the following components:
An inflator;
A vacuum pumping device;
A nitrogen charging device;
one end of the first communication pipe is communicated with the inflation device, the nitrogen charging device and the vacuumizing device, and the other end of the first communication pipe is communicated with the photoelectric equipment;
the pressure sensor is arranged on the first communication pipe;
and the control device is in communication connection with the pressure sensor, the air charging device, the nitrogen charging device and the vacuumizing device and independently controls the air charging device, the nitrogen charging device and the vacuumizing device.
according to some embodiments of the invention, the inflator comprises:
An inflator communicatively coupled to the control device;
one end of the second communication pipe is communicated with the inflator, and the other end of the second communication pipe is communicated with one end of the first communication pipe;
and the first control valve is arranged on the second communicating pipe and is in communication connection with the control device.
according to some embodiments of the invention, the evacuation device comprises:
The vacuum pump is in communication connection with the control device;
One end of the third communicating pipe is communicated with the vacuum pump, and the other end of the third communicating pipe is communicated with one end of the first communicating pipe;
And the second control valve is arranged on the third communicating pipe and is in communication connection with the control device.
according to some embodiments of the invention, the nitrogen charging apparatus comprises:
The nitrogen charging machine is in communication connection with the control device;
One end of the fourth communicating pipe is communicated with the nitrogen charging machine, and the other end of the fourth communicating pipe is communicated with one end of the first communicating pipe;
and the third control valve is arranged on the fourth communication pipe and is in communication connection with the control device.
according to some embodiments of the invention, the fully automated seal testing and nitrogen dosing all-in-one machine further comprises:
the first three-way pipe comprises a first communication port, a second communication port and a third communication port which are communicated with each other, the first communication port is communicated with the inflating device, and the second communication port is communicated with one end of the first communication pipe;
The second three-way pipe comprises a fourth communication port, a fifth communication port and a sixth communication port which are communicated with each other, the fourth communication port is communicated with the third communication port, the fifth communication port is communicated with the vacuumizing device, and the sixth communication port is communicated with the nitrogen charging device.
according to some embodiments of the invention, the control device comprises:
the pressure acquisition unit is in communication connection with the pressure sensor;
the pressure acquisition unit, the air charging device, the nitrogen charging device and the vacuumizing device are all in communication connection with the single chip microcomputer.
Further, the pressure acquisition unit comprises a 16-bit A/D converter.
According to some embodiments of the invention, the fully automated seal testing and nitrogen dosing all-in-one machine further comprises:
the input device is in communication connection with the control device;
and the alarm device is in communication connection with the control device.
the embodiment of the invention also provides a control method of the full-automatic sealing test and nitrogen filling all-in-one machine, which comprises the following steps:
an inflator;
A vacuum pumping device;
A nitrogen charging device;
one end of the first communication pipe is communicated with the inflation device, the nitrogen charging device and the vacuumizing device, and the other end of the first communication pipe is communicated with the photoelectric equipment;
The pressure sensor is arranged on the first communication pipe;
the control device is in communication connection with the air charging device, the nitrogen charging device and the vacuumizing device so as to independently control the air charging device, the nitrogen charging device and the vacuumizing device;
The control method comprises the following steps:
Starting the air charging device, and closing the vacuum pumping device and the nitrogen charging device;
controlling the pressure sensor to detect the air pressure of the optoelectronic equipment;
When the detection value of the pressure sensor reaches a pressure set value, closing the air charging device;
calculating a gas leakage rate of the optoelectronic equipment;
when the gas leakage rate is lower than a set leakage rate value, starting the vacuumizing device;
when the vacuum degree of the photoelectric equipment reaches a vacuum set value, closing the vacuumizing device and starting the nitrogen charging device;
And when the nitrogen charging amount of the photoelectric equipment reaches a nitrogen charging set value, closing the nitrogen charging device.
In some embodiments of the present invention, the fully automatic seal testing and nitrogen charging all-in-one machine further comprises:
the input device is in communication connection with the control device;
the alarm device is in communication connection with the control device;
the control method comprises the following steps:
inputting control parameters through the input device, wherein the control parameters comprise a pressure set value, a leakage rate set value, a vacuum set value and a nitrogen charging set value;
and when the gas leakage rate is higher than the set leakage rate value, starting the alarm device.
by adopting the embodiment of the invention, through the arrangement of the structure and the automatic control of the control device, the sealing test and the nitrogen filling operation can be combined into one, the automatic and continuous completion can be realized, the working procedures are coherent, the equipment operation is simple and convenient, the waste of working hours for respectively operating the sealing test and the nitrogen filling and repeatedly installing the card in the production and manufacturing process is solved, meanwhile, the influence of human factors can be avoided, and the accuracy of the sealing judgment and the consistency of the nitrogen filling quality can be improved.
the foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of the gas circuit connection of a fully automatic seal testing and nitrogen charging integrated machine in an embodiment of the invention;
fig. 2 is an electrical control schematic diagram of a fully automatic sealing test and nitrogen charging integrated machine in the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1-2, an embodiment of the present invention provides a fully automatic sealing test and nitrogen charging integrated machine 1, where the fully automatic sealing test and nitrogen charging integrated machine 1 is adapted to perform a sealing test and perform internal nitrogen charging on a photovoltaic device 2. Full-automatic sealed test and fill nitrogen all-in-one 1 includes: the device comprises an air charging device 10, a vacuum pumping device 20, a nitrogen charging device 30, a first communication pipe 40, a pressure sensor 50 and a control device 60.
as shown in fig. 1, the inflator 10 is used to inflate (e.g., air) the optoelectronic device 2. The evacuation device 20 is used to evacuate the optoelectronic device 2. The nitrogen charging device 30 is used for charging nitrogen gas into the photovoltaic apparatus 2. One end of the first communication pipe 40 is communicated with the inflator 10, the nitrogen charging device 30 and the vacuum extractor 20, in other words, one end of the first communication pipe 40 is communicated with the inflator 10, one end of the first communication pipe 40 is communicated with the nitrogen charging device 30, one end of the first communication pipe 40 is communicated with the vacuum extractor 20, and the other end of the first communication pipe 40 is communicated with the optoelectronic device 2. The pressure sensor 50 is provided in the first communication pipe 40. The pressure sensor 50 is adapted to detect the pressure of the gas introduced by the optoelectronic device 2.
as shown in fig. 2, the control device 60 is in communication connection with the pressure sensor 50, the inflator 10, the nitrogen charging device 30 and the vacuum extractor 20, and the control device 60 controls the inflator 10, the nitrogen charging device 30 and the vacuum extractor 20 independently. For example, the control device 60 may individually control the inflation device 10 to inflate the optoelectronic device 2 at a certain rate, the control device 60 may also individually control the vacuum pumping device 20 to evacuate the optoelectronic device 2 at a certain rate, the control device 60 may also individually control the nitrogen filling device 30 to fill nitrogen into the optoelectronic device 2 at a certain rate, and the control device 60 may also acquire the detection value of the pressure sensor 50.
By adopting the embodiment of the invention, the sealing test and the nitrogen filling operation can be combined into one and automatically and continuously completed through the structural arrangement and the automatic control of the control device 60, the working procedure is coherent, the equipment operation is simple and convenient, the waste of working hours for respectively operating the sealing test and the nitrogen filling and repeatedly installing the card in the production and manufacturing process is solved, and meanwhile, the influence of human factors can be avoided, so that the accuracy of the sealing judgment and the consistency of the nitrogen filling quality can be improved.
On the basis of the above-described embodiment, various modified embodiments are further proposed, and it is to be noted herein that, in order to make the description brief, only the differences from the above-described embodiment are described in the various modified embodiments.
As shown in fig. 1-2, according to some embodiments of the present invention, an inflator 10 includes: an inflator 11, a second communication pipe 12, and a first control valve 13. The inflator 11 is communicatively connected to the control device 60. The control device 60 may control the operation (e.g., opening, closing, inflation rate) of the inflator 11. One end of the second communication pipe 12 communicates with the inflator 11, and the other end of the second communication pipe 12 communicates with one end of the first communication pipe 40. The first control valve 13 is disposed in the second communication pipe 12, and the first control valve 13 is in communication with the control device 60. The control device 60 may control the opening and closing of the first control valve 13. The first control valve 13 may control whether the second communication pipe 12 is communicated.
as shown in fig. 1-2, according to some embodiments of the present invention, the evacuation device 20 includes: a vacuum pump 21, a third communication pipe 22, and a second control valve 23. The vacuum pump 21 is communicatively connected to the control device 60. The control device 60 can control the actions (e.g., turning on, turning off, pumping down rate) of the vacuum pump 21. One end of the third communication pipe 22 communicates with the vacuum pump 21, and the other end of the third communication pipe 22 communicates with one end of the first communication pipe 40. The second control valve 23 is arranged on the third communicating pipe 22, and the second control valve 23 is in communication connection with the control device 60. The control device 60 may control the opening and closing of the second control valve 23. The second control valve 23 may control whether the third communication pipe 22 is communicated.
as shown in fig. 1-2, according to some embodiments of the present invention, the nitrogen charging device 30 includes: a nitrogen charger 31, a fourth communicating pipe 32 and a third control valve 33. The nitrogen charging machine 31 is in communication connection with the control device 60. The control device 60 may control the operation (e.g., on, off, rate of dosing) of the nitrogen dosing machine 31. One end of the fourth communication pipe 32 is communicated with the nitrogen charger 31, and the other end of the fourth communication pipe 32 is communicated with one end of the first communication pipe 40. The third control valve 33 is provided in the fourth communication pipe 32, and the third control valve 33 is connected in communication with the control device 60. The control device 60 may control opening and closing of the third control valve 33. The third control valve 33 may control whether the fourth communication pipe 32 communicates.
as shown in fig. 1, according to some embodiments of the present invention, the fully automatic seal testing and nitrogen charging all-in-one machine 1 further includes: a first tee 70 and a second tee 80. The first three-way pipe 70 includes a first communication port 71, a second communication port 72, and a third communication port 73 that communicate with each other, the first communication port 71 communicating with the inflator 10, and the second communication port 72 communicating with one end of the first communication pipe 40. The second three-way pipe 80 includes a fourth communication port 81, a fifth communication port 82, and a sixth communication port 83 that communicate with each other, the fourth communication port 81 communicates with the third communication port 73, the fifth communication port 82 communicates with the vacuum evacuation device 20, and the sixth communication port 83 communicates with the nitrogen charging device 30. Further, the fourth communication port 81 and the third communication port 73 may be communicated through a fifth communication pipe 90.
according to some embodiments of the invention, the control device 60 comprises: pressure acquisition unit and singlechip. The pressure acquisition unit is in communication with the pressure sensor 50. The pressure acquisition unit, the air charging device 10, the nitrogen charging device 30 and the vacuum pumping device 20 are all in communication connection with the single chip microcomputer. The pressure acquisition unit can acquire the detection value of the pressure sensor 50 and feed back the detection value to the single chip microcomputer. Further, the pressure acquisition unit includes a 16-bit a/D converter. The acquisition of pressure data by using 16-bit a/D enables the control device 60 to have high sealing judgment and control accuracy of nitrogen filling purity (degree of vacuum pumping).
As shown, according to some embodiments of the present invention, the fully automatic seal testing and nitrogen charging all-in-one machine 1 further includes: an input device 100 and an alarm device. The input device 100 is communicatively coupled to the control device 60. The alarm device is in communication connection with the control device 60. By providing the input device 100, parameters can be flexibly set, and the operation is simple and the application range is wide. Through setting up alarm device, can realize the effect of reminding.
the embodiment of the invention also provides a control method of the full-automatic sealing test and nitrogen filling integrated machine, and the full-automatic sealing test and nitrogen filling integrated machine comprises the following steps:
an inflator;
A vacuum pumping device;
a nitrogen charging device;
one end of the first communicating pipe is communicated with the inflating device, the nitrogen charging device and the vacuumizing device, and the other end of the first communicating pipe is communicated with the photoelectric equipment;
the pressure sensor is arranged on the first communicating pipe;
The control device is in communication connection with the air charging device, the nitrogen charging device and the vacuumizing device so as to independently control the air charging device, the nitrogen charging device and the vacuumizing device;
the control method of the automatic sealing test and nitrogen filling integrated machine comprises the following steps:
starting the air charging device, and closing the vacuumizing device and the nitrogen charging device;
controlling a pressure sensor to detect the air pressure of the photoelectric equipment;
when the detection value of the pressure sensor reaches a pressure set value, closing the air charging device;
calculating the gas leakage rate of the photoelectric equipment;
when the gas leakage rate is lower than the set value of the leakage rate, starting the vacuumizing device;
when the vacuum degree of the photoelectric equipment reaches a vacuum set value, closing the vacuumizing device and starting the nitrogen charging device;
and when the nitrogen charging amount of the photoelectric equipment reaches the nitrogen charging set value, closing the nitrogen charging device.
by adopting the embodiment of the invention, the sealing test and the nitrogen filling operation can be combined into one, the automatic and continuous completion can be realized, the working procedure is coherent, the equipment operation is simple and convenient, the working hours waste of respectively operating the sealing test and the nitrogen filling and repeatedly installing the card in the production and manufacturing process is solved, and meanwhile, the influence of human factors can be avoided, so that the accuracy of the sealing judgment and the consistency of the nitrogen filling quality can be improved.
In some embodiments of the present invention, the fully automatic seal testing and nitrogen charging all-in-one machine further comprises:
the input device is in communication connection with the control device;
the alarm device is in communication connection with the control device;
the control method further comprises the following steps:
inputting control parameters through an input device, wherein the control parameters comprise a pressure set value, a leakage rate set value, a vacuum set value and a nitrogen charging set value;
and when the gas leakage rate is higher than the set value of the leakage rate, starting the alarm device.
The fully automatic seal testing and nitrogen charging all-in-one machine 1 according to the embodiment of the invention is described in detail in a specific embodiment with reference to fig. 1-2. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting. All similar structures and similar variations thereof adopted by the invention are intended to fall within the scope of the invention.
as shown in fig. 1-2, the fully automatic sealing test and nitrogen filling all-in-one machine 1 according to the embodiment of the present invention is suitable for performing a sealing test and internal nitrogen filling on a photovoltaic device 2. Full-automatic sealed test and fill nitrogen all-in-one 1 includes: the device comprises a power supply 110, an air charging device 10, a vacuum pumping device 20, a nitrogen charging device 30, a first communication pipe 40, a pressure sensor 50, a control device 60, a first three-way pipe 70, a second three-way pipe 80, a fifth communication pipe 90, an input device 100, a display device and an alarm device.
specifically, as shown in fig. 1, the first three-way pipe 70 includes a first communication port 71, a second communication port 72, and a third communication port 73 that communicate with each other, in other words, the first communication port 71 communicates with the second communication port 72, the first communication port 71 communicates with the third communication port 73, and the second communication port 72 communicates with the third communication port 73. The second three-way pipe 80 includes a fourth communication port 81, a fifth communication port 82, and a sixth communication port 83 that communicate with each other, in other words, the fourth communication port 81 communicates with the fifth communication port 82, the fourth communication port 81 communicates with the sixth communication port 83, and the fifth communication port 82 communicates with the sixth communication port 83. The third communication port 73 is connected to and communicated with one end of the fifth communication pipe 90, and the fourth communication port 81 is connected to and communicated with the other end of the fifth communication pipe 90. The second communication port 72 is connected and communicated with one end of the first communication pipe 40, and the other end of the first communication pipe 40 is connected and communicated with the optoelectronic device 2. The pressure sensor 50 is provided in the first communication pipe 40.
the input device 100, the display device and the alarm device are all in communication connection with the single chip microcomputer. The input device 100 can be operated by a keyboard, and parameters can be flexibly set by setting the input device 100, so that the operation is simple and the application range is wide. Through setting up alarm device, can realize the effect of reminding. The display device may be used to display the parameter.
The control device 60 includes: the pressure acquisition device comprises a first relay, a second relay, a third relay, a pressure acquisition unit and a single chip microcomputer. The pressure acquisition unit is a 16-bit A/D converter. The singlechip is an AT89C52 singlechip. The first relay, the second relay, the third relay and the pressure acquisition unit are all in communication connection with the single chip microcomputer. The first relay, the second relay and the third relay are all 5V relays. The pressure sensor 50 is a positive and negative pressure sensor, the measuring range is 0- +/-100 KPa, and the corresponding output voltage of the pressure sensor 50 is 0- +/-5V. The pressure sensor 50 is communicatively connected to the pressure acquisition unit. The pressure sensor 50 is adapted to detect the pressure of the gas introduced by the optoelectronic device 2.
the inflator 10 is used to inflate (e.g., air) the optoelectronic device 2. As shown in fig. 1 to 2, the inflator 10 includes: an inflator 11, a second communication pipe 12, and a first control valve 13. The inflator 11 is an electric inflator. The inflator 11 is communicatively coupled to a first relay to control the operation (e.g., opening, closing, inflation rate) of the inflator 11. One end of the second communication pipe 12 is connected to and communicates with the inflator 11, and the other end of the second communication pipe 12 is connected to and communicates with the first communication port 71. The first control valve 13 is disposed on the second communication pipe 12, and the first control valve 13 is in communication connection with the first relay to control the opening and closing of the first control valve 13. The first control valve 13 may control whether the second communication pipe 12 is communicated.
The evacuation device 20 is used to evacuate the optoelectronic device 2. As shown in fig. 1 to 2, the vacuum pumping device 20 includes: a vacuum pump 21, a third communication pipe 22, and a second control valve 23. The vacuum pump 21 is a micro vacuum pump. The vacuum pump 21 is communicatively connected to a second relay to control the operation (e.g., turning on, turning off, pumping rate) of the vacuum pump 21. One end of the third communication pipe 22 is connected to and communicated with the vacuum pump 21, and the other end of the third communication pipe 22 is connected to and communicated with the fifth communication port 82. The second control valve 23 is disposed on the third connection pipe 22, and the second control valve 23 is in communication connection with the second relay to control the opening and closing of the second control valve 23. The second control valve 23 may control whether the third communication pipe 22 is communicated.
The nitrogen charging device 30 is used for charging nitrogen gas into the photovoltaic apparatus 2. As shown in fig. 1-2, the nitrogen charging device 30 includes: a nitrogen charger 31, a fourth communicating pipe 32 and a third control valve 33. The nitrogen charging machine 31 is connected to a third relay in communication to control the operation (e.g., on, off, nitrogen charging rate) of the nitrogen charging machine 31. One end of the fourth communication pipe 32 communicates with the nitrogen charger 31, and the other end of the fourth communication pipe 32 communicates with the sixth communication port 83. The third control valve 33 is disposed in the fourth communication pipe 32, and the third control valve 33 is in communication with the third relay to control the opening and closing of the third control valve 33. The third control valve 33 may control whether the fourth communication pipe 32 communicates.
the first control valve 13, the second control valve 23, and the third control valve 33 are all direct-acting solenoid valves. According to the volume size and the nitrogen filling purity requirement (vacuum degree requirement) of the photoelectric equipment 2, the inflator 11 and the vacuum pump 21 with different flow rates can be selected, and even two-in-one can be realized. The control device 60, the first control valve 13, the second control valve 23, the third control valve 33, and the pressure sensor 50 are all electrically connected to the power source 110. The power supply 110 can convert a part of 220V input commercial power into +5V voltage required by the work of the all-in-one machine 1 and convert the other part of the 220V input commercial power into +12V voltage required by the work of the electromagnetic valve.
the operation steps of executing the sealing test and the internal nitrogen charging on the photoelectric equipment 2 by adopting the full-automatic sealing test and nitrogen charging integrated machine 1 of the embodiment of the invention comprise:
Controlling the first control valve 13 to be opened, the second control valve 23 and the third control valve 33 to be closed, starting the inflator 11 to inflate and pressurize the optoelectronic device 2, and automatically detecting the pressure value output by the pressure sensor 50;
When the detection value of the pressure sensor 50 reaches a pressure set value, the first control valve 13 is controlled to be closed, the inflation is stopped, the timing is started, and meanwhile, the gas leakage rate is detected and calculated (the tightness is tested);
when the gas leakage rate is lower than the set leakage rate value, opening the second control valve 23, starting the vacuum pump 21 to start vacuumizing, otherwise, automatically stopping working of the integrated machine 1, and starting the alarm device to give an audible and visual alarm;
When the vacuum degree of the photoelectric equipment 2 reaches a vacuum set value, closing the second control valve 23, stopping vacuumizing, and then opening the third control valve 33 to fill nitrogen;
And when the nitrogen charging amount of the photoelectric equipment 2 reaches the nitrogen charging set value, automatically closing the third control valve 33, and completing the sealing test and the nitrogen charging process.
the singlechip is used as an operation control core, controls the control valve of each actuating mechanism, the inflator 11, the vacuum pump 21 and the nitrogen charging machine 31 to work according to set requirements through a relay, simultaneously detects the internal pressure of the photoelectric equipment 2 in real time, and automatically calculates and judges whether the sealing performance and the nitrogen charging quantity meet the requirements or not. During initial operation, the input device 100 can input required control parameters (inflation pressure, leakage rate, nitrogen filling amount and the like), and meanwhile, the input device 100 can be used for calibrating the pressure sensor 50 in real time, so that the accuracy of pressure testing is ensured.
By adopting the embodiment of the invention, the sealing test and the nitrogen filling operation can be combined into one and automatically and continuously completed through the structural arrangement and the automatic control of the control device 60, the working procedure is coherent, the equipment operation is simple and convenient, the waste of working hours for respectively operating the sealing test and the nitrogen filling and repeatedly installing the card in the production and manufacturing process is solved, and meanwhile, the influence of human factors can be avoided, so that the accuracy of the sealing judgment and the consistency of the nitrogen filling quality can be improved.
it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art can make various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
furthermore, in the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. the utility model provides a full-automatic sealed test and nitrogen charging all-in-one, its characterized in that, full-automatic sealed test and nitrogen charging all-in-one are suitable for photoelectric equipment execution sealed test and inside nitrogen charging, include:
An inflator;
A vacuum pumping device;
a nitrogen charging device;
one end of the first communication pipe is communicated with the inflation device, the nitrogen charging device and the vacuumizing device, and the other end of the first communication pipe is communicated with the photoelectric equipment;
the pressure sensor is arranged on the first communication pipe;
and the control device is in communication connection with the pressure sensor, the air charging device, the nitrogen charging device and the vacuumizing device and independently controls the air charging device, the nitrogen charging device and the vacuumizing device.
2. The fully automated seal testing and nitrogen dosing integrated machine of claim 1, wherein the inflation device comprises:
An inflator communicatively coupled to the control device;
one end of the second communication pipe is communicated with the inflator, and the other end of the second communication pipe is communicated with one end of the first communication pipe;
and the first control valve is arranged on the second communicating pipe and is in communication connection with the control device.
3. the fully automated seal testing and nitrogen dosing integrated machine of claim 1, wherein the evacuation device comprises:
the vacuum pump is in communication connection with the control device;
one end of the third communicating pipe is communicated with the vacuum pump, and the other end of the third communicating pipe is communicated with one end of the first communicating pipe;
and the second control valve is arranged on the third communicating pipe and is in communication connection with the control device.
4. The fully automatic seal testing and nitrogen dosing all-in-one machine of claim 1, wherein the nitrogen dosing device comprises:
The nitrogen charging machine is in communication connection with the control device;
One end of the fourth communicating pipe is communicated with the nitrogen charging machine, and the other end of the fourth communicating pipe is communicated with one end of the first communicating pipe;
and the third control valve is arranged on the fourth communication pipe and is in communication connection with the control device.
5. the fully automated seal testing and nitrogen dosing integrated machine of claim 1, further comprising:
the first three-way pipe comprises a first communication port, a second communication port and a third communication port which are communicated with each other, the first communication port is communicated with the inflating device, and the second communication port is communicated with one end of the first communication pipe;
the second three-way pipe comprises a fourth communication port, a fifth communication port and a sixth communication port which are communicated with each other, the fourth communication port is communicated with the third communication port, the fifth communication port is communicated with the vacuumizing device, and the sixth communication port is communicated with the nitrogen charging device.
6. the fully automatic seal testing and nitrogen dosing all-in-one machine of claim 1, wherein the control device comprises:
The pressure acquisition unit is in communication connection with the pressure sensor;
the pressure acquisition unit, the air charging device, the nitrogen charging device and the vacuumizing device are all in communication connection with the single chip microcomputer.
7. the fully automated seal testing and nitrogen dosing integrated machine of claim 6, wherein the pressure acquisition unit comprises a 16-bit a/D converter.
8. The fully automated seal testing and nitrogen dosing integrated machine of claim 1, further comprising:
The input device is in communication connection with the control device;
And the alarm device is in communication connection with the control device.
9. a control method of a full-automatic sealing test and nitrogen charging integrated machine is characterized in that the full-automatic sealing test and nitrogen charging integrated machine comprises the following steps:
An inflator;
a vacuum pumping device;
a nitrogen charging device;
One end of the first communication pipe is communicated with the inflation device, the nitrogen charging device and the vacuumizing device, and the other end of the first communication pipe is communicated with the photoelectric equipment;
The pressure sensor is arranged on the first communication pipe;
The control device is in communication connection with the air charging device, the nitrogen charging device and the vacuumizing device so as to independently control the air charging device, the nitrogen charging device and the vacuumizing device;
the control method comprises the following steps:
starting the air charging device, and closing the vacuum pumping device and the nitrogen charging device;
controlling the pressure sensor to detect the air pressure of the optoelectronic equipment;
When the detection value of the pressure sensor reaches a pressure set value, closing the air charging device;
Calculating a gas leakage rate of the optoelectronic equipment;
when the gas leakage rate is lower than a set leakage rate value, starting the vacuumizing device;
when the vacuum degree of the photoelectric equipment reaches a vacuum set value, closing the vacuumizing device and starting the nitrogen charging device;
And when the nitrogen charging amount of the photoelectric equipment reaches a nitrogen charging set value, closing the nitrogen charging device.
10. The method for controlling the fully automatic sealing test and nitrogen charging integrated machine according to claim 9, wherein the fully automatic sealing test and nitrogen charging integrated machine further comprises:
The input device is in communication connection with the control device;
the alarm device is in communication connection with the control device;
the control method comprises the following steps:
Inputting control parameters through the input device, wherein the control parameters comprise a pressure set value, a leakage rate set value, a vacuum set value and a nitrogen charging set value;
and when the gas leakage rate is higher than the set leakage rate value, starting the alarm device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910919547.4A CN110579324A (en) | 2019-09-26 | 2019-09-26 | Full-automatic sealing test and nitrogen filling integrated machine and control method thereof |
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| CN201910919547.4A CN110579324A (en) | 2019-09-26 | 2019-09-26 | Full-automatic sealing test and nitrogen filling integrated machine and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112525443A (en) * | 2020-12-07 | 2021-03-19 | 格力电器（武汉）有限公司 | Pressure maintaining testing device |
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