CN204515430U - Nitrogen cabinet or inert gas cabinet control system - Google Patents
Nitrogen cabinet or inert gas cabinet control system Download PDFInfo
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- CN204515430U CN204515430U CN201520197490.9U CN201520197490U CN204515430U CN 204515430 U CN204515430 U CN 204515430U CN 201520197490 U CN201520197490 U CN 201520197490U CN 204515430 U CN204515430 U CN 204515430U
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Abstract
A kind of nitrogen cabinet or inert gas cabinet control system, belong to storage facilities technical field.Comprise central controller, gas collection unit, gas conditioning module, display unit and Temperature Humidity Sensor, described gas collection unit, gas conditioning module, display unit and Temperature Humidity Sensor are connected with central controller respectively, gas conditioning module connects nitrogen or noble gas source by solenoid valve, gas concentration in the cabinet that central controller collects according to gas collection unit, controls gas conditioning module and opens or closes solenoid valve.Advantage: the charge that can regulate nitrogen or inert gas according to gas content in cabinet, improves the utilization factor of nitrogen or inert gas, saves use cost.
Description
Technical field
The utility model belongs to storage facilities technical field, is specifically related to a kind of nitrogen cabinet or inert gas cabinet control system.
Background technology
Nitrogen cabinet or inert gas cabinet are widely used in the industries such as semiconductor, sun power, noble metal, electronics, LED, are mainly used in the storage of oxidizable article.Existing nitrogen cabinet or inert gas cabinet are on cabinet, establish a gas inflated mouth, then via pipeline connection to nitrogen cylinder or inert gas bottle.For ensureing that the oxygen concentration in cabinet maintains certain value, Normal practice constantly repeats to be filled with nitrogen or inert gas with low discharge, and the consumption of nitrogen and inert gas is large, and use cost is high.Chinese utility model patent Authorization Notice No. CN200964254Y describes " nitrogen cabinet of tool identification and aerating device ", comprises a tensimeter and/or flow meter, for showing pressure and/or the flow of filling nitrogen.Described tensimeter and/or flowmeter collocation control module use, and according to the bound of force value in cabinet, initiatively close or open aerating device.But, different storage things requires to be not quite similar to the oxygen concentration in nitrogen cabinet, as is known in the industry, the principle of work of nitrogen cabinet is replaced by being filled with of nitrogen by the air in cabinet, use the oxygen content reduced in cabinet, reach anti-oxidation object, therefore, if merely by measuring pressure and/or the flow of nitrogen in cabinet, also cannot oxygen content accurately in switch board, the utilization factor of nitrogen can not be improved well according to the difference storing thing, also have impact to the storage quality storing thing.
In view of above-mentioned prior art, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The purpose of this utility model is to provide a kind of nitrogen cabinet or inert gas cabinet control system, can regulate the charge of nitrogen or inert gas, improve the utilization factor of nitrogen or inert gas, save use cost according to gas content in cabinet.
The purpose of this utility model reaches like this, a kind of nitrogen cabinet or inert gas cabinet control system, outside nitrogen or noble gas source is connected by solenoid valve Y, it is characterized in that: comprise central controller, gas collection unit, gas conditioning module, display unit and Temperature Humidity Sensor, described gas collection unit, gas conditioning module, display unit and Temperature Humidity Sensor are connected with central controller respectively, gas conditioning module connected electromagnetic valve Y, gas concentration in the cabinet that central controller collects according to gas collection unit, control gas conditioning module and open or close solenoid valve Y.
In a specific embodiment of the present utility model, described nitrogen cabinet or inert gas cabinet control system also comprise power supply unit, and described power supply unit is respectively central controller, gas collection unit and gas conditioning module and provides power supply.
In another specific embodiment of the present utility model, described power supply unit comprises transformer T1, rectifier bridge BR, electrochemical capacitor C1, electric capacity C2, electrochemical capacitor C3, electric capacity C4 and voltage stabilizing chip U1, wherein, described voltage stabilizing chip U1 is LM7805, the two ends access external ac power source of the primary coil of transformer T1, the two ends of the secondary coil of transformer T1 are connected with two input ends of rectifier bridge BR respectively, one output terminal of rectifier bridge BR and the positive pole of electrochemical capacitor C1, one end of electric capacity C2 and the Vin end of voltage stabilizing chip U1 connect, the Vout end of voltage stabilizing chip U1 is connected with the positive pole of electrochemical capacitor C3 and one end of electric capacity C4, and common output+5V direct supply, another output terminal of rectifier bridge BR, the negative pole of electrochemical capacitor C1, the other end of electric capacity C2, the GND end of voltage stabilizing chip U1, the negative pole of electrochemical capacitor C3 and the other end common ground of electric capacity C4.
In another specific embodiment of the present utility model, described gas collection unit comprises electric capacity C5, electrochemical capacitor C6, electric capacity C7, transient supression diode TVS1, transient supression diode TVS2, transient supression diode TVS3, gas sensor S1 and signal amplify processing module U2, it is TM4660P that wherein said signal amplifies processing module U2, 1 pin that signal amplifies processing module U2 is connected with 11 pin, and positive pole that is common and transient supression diode TVS3, the positive pole of transient supression diode TVS1, one end of electric capacity C5 and the negative output terminal of gas sensor S1 connect, 3 pin that signal amplifies processing module U2 are connected with the negative pole of transient supression diode TVS3, signal amplifies 12 pin of processing module U2 and the negative pole of transient supression diode TVS1, the other end of electric capacity C5 and the positive output end of gas sensor S1 connect, signal amplifies 23 pin of processing module U2 and is jointly connected+5V direct supply with the negative pole of the positive pole of electrochemical capacitor C6 and transient supression diode TVS2, signal amplifies the positive pole common ground of 24 pin of processing module U2 and the negative pole of electrochemical capacitor C6 and transient supression diode TVS2, signal amplifies 1 of processing module U2, 3 pin are connected with described central controller.
In another specific embodiment of the present utility model, described gas conditioning module comprises resistance R1, resistance R2, resistance R3, triode Q1, LED 1 and relay K 1, one end of described resistance R1 is connected with one end of resistance R3, and be jointly connected to described central controller, the other end of resistance R1 and one end of resistance R2, the base stage of triode Q1 and the positive pole of LED 1 connect, the collector of triode Q1 is connected with one end of the coil of relay K 1, the moving contact of relay K 1 connects external power source, one stationary contact connected electromagnetic valve Y of relay K 1, another stationary contact of relay K 1 is unsettled, the other end of the negative pole contact resistance R3 of LED 1, the other end of resistance R2 is connected+5V direct supply jointly with the emitter of triode Q1, the other end ground connection of the coil of relay K 1.
Also have in a specific embodiment of the present utility model, described display unit is LED charactron or LCD liquid crystal display screen.
More of the present utility model and in a specific embodiment, described central controller adopts single-chip microcomputer.
In an of the present utility model and then specific embodiment, the gas sensor S1 in described gas collection unit is the one in oxygen sensor, nitrogen sensor or inert gas sensor.
The utility model is owing to have employed said structure, compared with prior art, the beneficial effect had: the concentration being gathered oxygen, nitrogen or inert gas in cabinet by gas collection unit, when the content of oxygen, nitrogen or inert gas in cabinet reach preset concentration require time, central controller sends signal to gas conditioning module and solenoid valve Y is closed, and automatically cuts off being filled with of nitrogen or inert gas; When in cabinet, the content of oxygen, nitrogen or inert gas departs from preset concentration, solenoid valve Y opens, and restarts being filled with of nitrogen or inert gas, can save the charge of nitrogen or inert gas thus, improve the utilization factor of nitrogen or inert gas, save use cost.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of central controller described in the utility model.
Fig. 3 is the electrical schematic diagram of power supply unit described in the utility model.
Fig. 4 is the electrical schematic diagram of gas collection unit described in the utility model.
Fig. 5 is the electrical schematic diagram of gas conditioning module described in the utility model.
In figure: 1. central controller; 2. gas collection unit; 3. gas conditioning module; 4. display unit; 5. Temperature Humidity Sensor; 6. power supply unit.
Embodiment
Applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the utility model design all should be considered as protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, the utility model relates to a kind of nitrogen cabinet or inert gas cabinet control system, connects outside nitrogen or noble gas source by solenoid valve Y.This control system comprises central controller 1, gas collection unit 2, gas conditioning module 3, display unit 4 and Temperature Humidity Sensor 5.Described gas collection unit 2, gas conditioning module 3, display unit 4 and Temperature Humidity Sensor 5 are connected with central controller 1 respectively, gas conditioning module 3 connected electromagnetic valve Y, gas concentration in the cabinet that central controller 1 collects according to gas collection unit 2, controls gas conditioning module 3 and opens or closes solenoid valve Y.Described central controller 1 is made up of single-chip microcomputer and SCM peripheral circuit, described single-chip microcomputer can adopt the AVR series of ATMEL or the STM32 series of ST company, have employed ATmega16 herein, because its peripheral circuit is existing open in the prior art, therefore omit description.One A/D sample port of this single-chip microcomputer connects gas collection unit 2, and another A/D sample port connects Temperature Humidity Sensor 5, Relay port and connects gas conditioning module 3, Port port connection display unit 4.Described display unit 4 is LED charactron or LCD liquid crystal display screen, is mainly used in the parameter information showing gas in the cabinet such as oxygen content, humiture.LED charactron can be sampled the charactron of conventional 8 segment encodes, and LCD liquid crystal display screen can adopt Guangzhou with the picture and text lattice module COG128*64 series of China.Described Temperature Humidity Sensor 5 is different for distance, closely gather the digital integrated Temperature Humidity Sensor SHT1x series that SENSIRION company of Switzerland can be adopted to produce, the HTG3515 integral type Temperature Humidity Sensor of the analog output that remote capture then can adopt MEMS company of the U.S. to produce.
Refer to Fig. 3, and composition graphs 1, described control system also comprises power supply unit 6, described power supply unit 6 comprises transformer T1, rectifier bridge BR, electrochemical capacitor C1, electric capacity C2, electrochemical capacitor C3, electric capacity C4 and voltage stabilizing chip U1, wherein, described voltage stabilizing chip U1 is LM7805, the outside 220V AC power of two terminations of the primary coil of transformer T1, the two ends of the secondary coil of transformer T1 are connected with two input ends of rectifier bridge BR respectively, 220V AC power obtains a direct supply successively after transformer T1 and rectifier bridge BR, this direct supply exports a stable+5V direct supply again after voltage stabilizing chip U1 voltage stabilizing, for central controller 1, gas collection unit 2 and gas conditioning module 3 provide power supply.
Refer to Fig. 4, described gas collection unit 2 comprises electric capacity C5, electrochemical capacitor C6, electric capacity C7, transient supression diode TVS1, transient supression diode TVS2, transient supression diode TVS3, gas sensor S1 and signal and amplifies processing module U2, wherein, described transient supression diode TVS1, transient supression diode TVS2 and transient supression diode TVS3 adopt SMBJ6.5CA; Described signal amplifies the special low level signal amplification module TMxxxxP series of technical grade that processing module U2 adopts Guangzhou gold liter sun science and technology to produce, and concrete model is herein TM4660P; Described gas sensor S1, according to application needs, can be the one in oxygen sensor, nitrogen sensor or inert gas sensor, in the present embodiment, be described for oxygen sensor MAX-250B.Oxygen sensor gathers oxygen concentration in cabinet, and the signal that oxygen sensor exports amplifies through signal the A/D sample port directly can exporting to single-chip microcomputer after processing module U2 amplifies and carries out AD sample conversion.Transient supression diode TVS1 is used for protecting gas sensor S1; Transient supression diode TVS2 is used for anti-stop signal amplification processing module U2 and is damaged after power supply overvoltage; The output signal that transient supression diode TVS3 is used for amplifying signal processing module U2 is protected, and electric capacity C7 is for suppressing common mode interference.
Refer to Fig. 5, described gas conditioning module 3 comprises resistance R1, resistance R2, resistance R3, triode Q1, LED 1 and relay K 1.One end of described resistance R1 is connected with one end of resistance R3, and is jointly connected to the I/O mouth of single-chip microcomputer in described central controller 1, i.e. Relay port.The other end of resistance R1 is connected with the base stage of one end of resistance R2, triode Q1 and the positive pole of LED 1, the collector of triode Q1 is connected with one end of the coil of relay K 1, the moving contact of relay K 1 connects external power source L, one stationary contact connected electromagnetic valve Y of relay K 1, another stationary contact of relay K 1 is unsettled, the other end of the negative pole contact resistance R3 of LED 1, the other end of resistance R2 is connected+5V direct supply jointly with the emitter of triode Q1, the other end ground connection of the coil of relay K 1.When oxygen content in cabinet reaches preset concentration requirement, the signal that single-chip microcomputer transmits according to gas collection unit 2 exports a high level signal to gas conditioning module 3, this high level signal makes triode Q1 end, the coil losing electricity of relay K 1, its moving contact switch is on unsettled stationary contact, solenoid valve Y is closed, and stops being filled with of nitrogen or inert gas; When oxygen content in cabinet is higher than preset concentration, single-chip microcomputer exports a low level to gas conditioning module 3, this low level makes triode Q1 conducting, the coil of relay K 1 obtains electric, its moving contact is from unsettled stationary contact switch to the stationary contact being connected to solenoid valve Y, solenoid valve Y is opened, and starts being filled with of nitrogen or inert gas; Meanwhile, LED 1 is lit, and indicating user is current is inflated condition.The utility model can carry out Controlling solenoid valve Y according to gas content in cabinet and open or close, and can save the charge of nitrogen or inert gas, improves the utilization factor of nitrogen or inert gas, saves use cost.
Claims (8)
1.
a kind of nitrogen cabinet or inert gas cabinet control system, outside nitrogen or noble gas source is connected by solenoid valve Y, it is characterized in that: comprise central controller (1), gas collection unit (2), gas conditioning module (3), display unit (4) and Temperature Humidity Sensor (5), described gas collection unit (2), gas conditioning module (3), display unit (4) and Temperature Humidity Sensor (5) are connected with central controller (1) respectively, gas conditioning module (3) connected electromagnetic valve Y, gas concentration in the cabinet that central controller (1) collects according to gas collection unit (2), control gas conditioning module (3) and open or close solenoid valve Y.
2.
nitrogen cabinet according to claim 1 or inert gas cabinet control system, it is characterized in that described nitrogen cabinet or inert gas cabinet control system also comprise power supply unit (6), described power supply unit (6) is respectively central controller (1), gas collection unit (2) and gas conditioning module (3) and provides power supply.
3.
nitrogen cabinet according to claim 2 or inert gas cabinet control system, it is characterized in that described power supply unit (6) comprises transformer T1, rectifier bridge BR, electrochemical capacitor C1, electric capacity C2, electrochemical capacitor C3, electric capacity C4 and voltage stabilizing chip U1, wherein, described voltage stabilizing chip U1 is LM7805, the two ends access external ac power source of the primary coil of transformer T1, the two ends of the secondary coil of transformer T1 are connected with two input ends of rectifier bridge BR respectively, one output terminal of rectifier bridge BR and the positive pole of electrochemical capacitor C1, one end of electric capacity C2 and the Vin end of voltage stabilizing chip U1 connect, the Vout end of voltage stabilizing chip U1 is connected with the positive pole of electrochemical capacitor C3 and one end of electric capacity C4, and common output+5V direct supply, another output terminal of rectifier bridge BR, the negative pole of electrochemical capacitor C1, the other end of electric capacity C2, the GND end of voltage stabilizing chip U1, the negative pole of electrochemical capacitor C3 and the other end common ground of electric capacity C4.
4.
nitrogen cabinet according to claim 1 or inert gas cabinet control system, it is characterized in that described gas collection unit (2) comprises electric capacity C5, electrochemical capacitor C6, electric capacity C7, transient supression diode TVS1, transient supression diode TVS2, transient supression diode TVS3, gas sensor S1 and signal amplify processing module U2, it is TM4660P that wherein said signal amplifies processing module U2, 1 pin that signal amplifies processing module U2 is connected with 11 pin, and positive pole that is common and transient supression diode TVS3, the positive pole of transient supression diode TVS1, one end of electric capacity C5 and the negative output terminal of gas sensor S1 connect, 3 pin that signal amplifies processing module U2 are connected with the negative pole of transient supression diode TVS3, signal amplifies 12 pin of processing module U2 and the negative pole of transient supression diode TVS1, the other end of electric capacity C5 and the positive output end of gas sensor S1 connect, signal amplifies 23 pin of processing module U2 and is jointly connected+5V direct supply with the negative pole of the positive pole of electrochemical capacitor C6 and transient supression diode TVS2, signal amplifies the positive pole common ground of 24 pin of processing module U2 and the negative pole of electrochemical capacitor C6 and transient supression diode TVS2, signal amplifies 1 of processing module U2, 3 pin are connected with described central controller (1).
5.
nitrogen cabinet according to claim 1 or inert gas cabinet control system, it is characterized in that described gas conditioning module (3) comprises resistance R1, resistance R2, resistance R3, triode Q1, LED 1 and relay K 1, one end of described resistance R1 is connected with one end of resistance R3, and be jointly connected to described central controller (1), the other end of resistance R1 and one end of resistance R2, the base stage of triode Q1 and the positive pole of LED 1 connect, the collector of triode Q1 is connected with one end of the coil of relay K 1, the moving contact of relay K 1 connects external power source, one stationary contact connected electromagnetic valve Y of relay K 1, another stationary contact of relay K 1 is unsettled, the other end of the negative pole contact resistance R3 of LED 1, the other end of resistance R2 is connected+5V direct supply jointly with the emitter of triode Q1, the other end ground connection of the coil of relay K 1.
6.
nitrogen cabinet according to claim 1 or inert gas cabinet control system, is characterized in that described display unit (4) is LED charactron or LCD liquid crystal display screen.
7.
nitrogen cabinet according to claim 1 or inert gas cabinet control system, is characterized in that described central controller (1) adopts single-chip microcomputer.
8.
nitrogen cabinet according to claim 4 or inert gas cabinet control system, the gas sensor S1 that it is characterized in that in described gas collection unit (2) is the one in oxygen sensor, nitrogen sensor or inert gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197490.9U CN204515430U (en) | 2015-04-03 | 2015-04-03 | Nitrogen cabinet or inert gas cabinet control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197490.9U CN204515430U (en) | 2015-04-03 | 2015-04-03 | Nitrogen cabinet or inert gas cabinet control system |
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| Publication Number | Publication Date |
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| CN204515430U true CN204515430U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520197490.9U Withdrawn - After Issue CN204515430U (en) | 2015-04-03 | 2015-04-03 | Nitrogen cabinet or inert gas cabinet control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793532A (en) * | 2015-04-03 | 2015-07-22 | 常熟市加腾电子设备厂（普通合伙） | Nitrogen cabinet or inert gas cabinet control system |
| CN107064392A (en) * | 2017-04-21 | 2017-08-18 | 国网四川省电力公司检修公司 | A kind of fully-automatic intelligent delay heat sink |
-
2015
- 2015-04-03 CN CN201520197490.9U patent/CN204515430U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793532A (en) * | 2015-04-03 | 2015-07-22 | 常熟市加腾电子设备厂（普通合伙） | Nitrogen cabinet or inert gas cabinet control system |
| CN107064392A (en) * | 2017-04-21 | 2017-08-18 | 国网四川省电力公司检修公司 | A kind of fully-automatic intelligent delay heat sink |
| CN107064392B (en) * | 2017-04-21 | 2019-05-07 | 国网四川省电力公司检修公司 | A kind of fully-automatic intelligent delay cooling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170419 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170524 |
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| AV01 | Patent right actively abandoned |