CN202748621U - Machine room central ventilation system open-close door automatic control device - Google Patents
Machine room central ventilation system open-close door automatic control device Download PDFInfo
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- CN202748621U CN202748621U CN 201220433401 CN201220433401U CN202748621U CN 202748621 U CN202748621 U CN 202748621U CN 201220433401 CN201220433401 CN 201220433401 CN 201220433401 U CN201220433401 U CN 201220433401U CN 202748621 U CN202748621 U CN 202748621U
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Abstract
The utility model discloses a machine room central ventilation system open-close door automatic control device, and the device comprises a magnet switch circuit, a monostability delay circuit, a central ventilation control circuit, an illuminating lamp control circuit, and a power source circuit, wherein the magnet switch circuit comprises a reed pipe arranged on the door and a permanent magnet arranged on a doorframe, a signal output terminal of the reed pipe is connected with a signal input terminal of the monostability delay circuit, a signal output terminal of the monostability delay circuit is connected with the central ventilation control circuit and the illuminating lamp control circuit, a signal output terminal of the central ventilation control circuit is used for connecting a central ventilation system exhaust fan, and the illuminating lamp control circuit is used for connecting the illuminating lamp. The machine room central ventilation system open-close door automatic control device can automatically control the central ventilation system to work or to stop working according to states of the door, the device can simultaneously control the illuminating lamp to glow or not to glow, no trouble is added to maintainers entering and exiting the machine room, open and close of the central ventilation system can be automatically controlled, and the device is energy-saving and convenient.
Description
Technical field
The utility model relates to automaton, relates in particular to the VMC (Ventilation Mechanical Control System) switch gate automaton in a kind of machine room.
Background technology
At present, in order to guarantee the indexs such as air themperature, humidity, dustiness in the machine room, all dispose equipment room fresh air ventilating in the general machine room, the new wind after utilizing special air duct with some suitable humitures and dedusting is sent machine room to.But because maintainer's turnover, cause to have entered from the doorway and do not have in a large number treated air, although the air-conditioning system in the machine room can be processed humiture, but dust content of air can't in time be processed, and in time the defective gas discharge meeting in the machine room has not been brought potential safety hazard to equipment safety operation
The utility model content
The purpose of this utility model provides a kind of equipment room fresh air ventilating switch gate automaton, can in time the underproof gas in the machine room be discharged energy-saving convenient.
The utility model adopts following technical proposals: a kind of equipment room fresh air ventilating switch gate automaton, comprise the magnetic switch circuit, the monostable time delay circuit, new wind control circuit, lighting lamp control circuit and power circuit, described magnetic switch circuit comprises and is arranged on the tongue tube on the door and is arranged on permanent magnet on the doorframe, the signal output part of described tongue tube connects the signal input part of monostable time delay circuit, the signal output part of monostable time delay circuit connects new wind control circuit and lighting lamp control circuit, the signal output part of described new wind control circuit is used for connecting the VMC (Ventilation Mechanical Control System) scavenger fan, and described lighting lamp control circuit is used for connecting illuminating lamp.
Described monostable time delay circuit comprises triode, time-base integrated circuit, first, second, third resistance, first, second, third electric capacity, the base stage of described triode is connected with the signal output part of tongue tube by the first resistance, the grounded emitter of described triode, the collector of described triode is connected with the signal input part of time-base integrated circuit, collector also connects the output terminal of power circuit by the second resistance, collector is also by the first capacity earth; The discharge end of described time-base integrated circuit and thresholding end are by the output terminal of the 3rd resistance access power circuit, also by the second capacity earth, the control voltage end of time-base integrated circuit connects the 3rd capacity earth, and the signal output part of time-base integrated circuit is connected with new wind control circuit and lighting lamp control circuit.
Described new wind control circuit comprises relay, and coil one end of relay connects the signal output part of time-base integrated circuit, an end ground connection, and the first normally opened contact of relay is connected in the power circuit of VMC (Ventilation Mechanical Control System) scavenger fan; Described lighting lamp control circuit comprises the second normally opened contact of relay, and the second normally opened contact is connected in the power circuit of illuminating lamp.
Described lighting lamp control circuit also comprises light-operated circuit.
Described light-operated circuit comprises photoresistance, adjustable resistance, diac, bidirectional triode thyristor and phase-shift capacitor, described photoresistance one end connects power supply, the other end connects the adjustable side of adjustable resistance, the first end of adjustable resistance connects illuminating lamp, and the second end connects power supply after connecting phase-shift capacitor; Illuminating lamp also is connected with bidirectional triode thyristor, and the control utmost point of bidirectional triode thyristor connects the second end of adjustable resistance by diac.
The utility model can automatically be controlled VMC (Ventilation Mechanical Control System) according to the state of switch gate and carry out work or quit work, it is shinny or not shinny also to control simultaneously illuminating lamp, when the machine room inside door is opened the someone when entering, in time make VMC (Ventilation Mechanical Control System) work, in time the defective gas in the machine room is discharged, close the people when going out when the machine room inside door, time-delay a period of time is closed VMC (Ventilation Mechanical Control System), is controlled by original system.Do not increase any trouble like this can be for the maintainer of turnover machine room, the again automatically open and close of VMC (Ventilation Mechanical Control System), energy-conservation and make things convenient for.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, a kind of equipment room fresh air ventilating switch gate of the utility model automaton, comprise magnetic switch circuit, monostable time delay circuit, new wind control circuit, lighting lamp control circuit and power circuit, described magnetic switch circuit comprises the tongue tube AG that is arranged on the door and is arranged on permanent magnet on the doorframe that the signal output part of described tongue tube AG connects the signal input part of monostable time delay circuit.Described monostable time delay circuit comprises triode Q1, time-base integrated circuit IC1(555 chip), first, second, the 3rd resistance R 1, R2, R3, first, second, the 3rd capacitor C 1, C2, C3, the base stage of described triode Q1 is connected with the signal output part of tongue tube AG by the first resistance R 1, the grounded emitter of described triode Q1, the collector of described triode Q1 is connected with the signal input part (pin 2) of time-base integrated circuit IC1, collector also connects the output terminal of power circuit by the second resistance R 2, collector is also by the first capacitor C 1 ground connection; The discharge end of described time-base integrated circuit IC1 (pin 7) and thresholding end (pin 6) are by the output terminal of the 3rd resistance R 3 access power circuits, also by the second capacitor C 2 ground connection, the control voltage end of time-base integrated circuit IC1 (pin 5) connects the 3rd capacitor C 3 ground connection, and the signal output part of time-base integrated circuit IC1 (pin 2) is connected with new wind control circuit and lighting lamp control circuit.
Described new wind control circuit comprises relay, and coil J one end of relay connects the signal output part of time-base integrated circuit IC1, an end ground connection, and the first normally opened contact J1 of relay is connected in the power circuit of VMC (Ventilation Mechanical Control System) scavenger fan MAC; Described lighting lamp control circuit comprises the second normally opened contact J2 of relay, and the second normally opened contact J2 is connected in the power circuit of illuminating lamp L.Described lighting lamp control circuit also comprises light-operated circuit, described light-operated circuit comprises that photoresistance CdS, adjustable resistance RP1(regulate the brightness that RP1 can change illuminating lamp L), diac 2ST, bidirectional triode thyristor VS and phase-shift capacitor C6, described photoresistance CdS one end connects power supply (N), the other end connects the adjustable side of adjustable resistance RP1, the first end of adjustable resistance RP1 connects illuminating lamp L by resistance R 6, and the second end connects power supply (N) after connecting phase-shift capacitor C6; Illuminating lamp L also is connected with bidirectional triode thyristor VS, and the control utmost point of bidirectional triode thyristor VS connects the second end of adjustable resistance RP1 by diac 2ST.
Power circuit is by L, N input, through capacitor C 4 filtering after the full-bridge U rectification, output DC source after the voltage stabilizing diode D1 voltage stabilizing, capacitor C 5 step-down current limlitings.
As shown in Figure 1, when machine room door is shut, permanent magnet and tongue tube AG lean on very closely, because the magneticaction of permanent magnet causes tongue tube AG to disconnect, triode Q1 ends without bias current, this moment, the input end (pin 2) of time-base integrated circuit IC1 was high level, so IC1 is in reset mode, and the output terminal of IC1 (pin 3) output low level, the not adhesive of relay coil J no current, scavenger fan MAC and illuminating lamp L all are in off-position.In case there is the people to enter machine room, must cause the distance of permanent magnet and tongue tube AG to increase in the moment of entering, and so that the magnetic line of force of permanent magnet can not act on the tongue tube AG, so closed contact of tongue tube, this moment, triode Q1 obtained bias current and conducting makes the input end of IC1 become low level (only being the saturation pressure depreciation of VT) after the triode Q1 conducting, and IC1 triggers set, this moment, the output terminal of IC1 was high level by original low transition, the adhesive of relay coil J excitation.After the coil J adhesive, its normally opened contact J1 is closed, and the VMC (Ventilation Mechanical Control System) scavenger fan MAC work of switch on begins exhaust.Meanwhile, normally opened contact J2 is also closed, and illuminating lamp L energising is lighted, and its brightness can be regulated by RP1.Open the door enter machine room after, although door is shut again, this moment, circuit still was in inletting fresh air and illumination condition, when opening the door away owing to the monostable effect of IC1, cause permanent magnet away from tongue tube AG, again close the door afterwards, cause permanent magnet again near AG, time-delay a period of time, illuminating lamp L and VMC (Ventilation Mechanical Control System) are changed fan MAC and all can automatically be quit work, and are controlled voluntarily by original control system.If daytime, because have stronger light to be radiated on the photoresistance CdS, thereby make the internal resistance of photoresistance CdS very little, the undertension at phase-shift capacitor C6 two ends is so that diac 2ST conducting, so bidirectional triode thyristor VS triggerless electric current and blocking, daytime, illuminating lamp L can not light.Night is not owing to have solar radiation on photoresistance CdS, thereby the internal resistance of photoresistance CdS becomes very large, is equivalent to open circuit, diac 2ST conducting this moment, and bidirectional triode thyristor VS conducting, illuminating lamp L lights.
Claims (5)
1. equipment room fresh air ventilating switch gate automaton, it is characterized in that: comprise the magnetic switch circuit, the monostable time delay circuit, new wind control circuit, lighting lamp control circuit and power circuit, described magnetic switch circuit comprises and is arranged on the tongue tube on the door and is arranged on permanent magnet on the doorframe, the signal output part of described tongue tube connects the signal input part of monostable time delay circuit, the signal output part of monostable time delay circuit connects new wind control circuit and lighting lamp control circuit, the signal output part of described new wind control circuit is used for connecting the VMC (Ventilation Mechanical Control System) scavenger fan, and described lighting lamp control circuit is used for connecting illuminating lamp.
2. equipment room fresh air ventilating switch gate automaton according to claim 1, it is characterized in that: described monostable time delay circuit comprises triode, time-base integrated circuit, first, second, the 3rd resistance, first, second, the 3rd electric capacity, the base stage of described triode is connected with the signal output part of tongue tube by the first resistance, the grounded emitter of described triode, the collector of described triode is connected with the signal input part of time-base integrated circuit, collector also connects the output terminal of power circuit by the second resistance, collector is also by the first capacity earth; The discharge end of described time-base integrated circuit and thresholding end are by the output terminal of the 3rd resistance access power circuit, also by the second capacity earth, the control voltage end of time-base integrated circuit connects the 3rd capacity earth, and the signal output part of time-base integrated circuit is connected with new wind control circuit and lighting lamp control circuit.
3. equipment room fresh air ventilating switch gate automaton according to claim 2, it is characterized in that: described new wind control circuit comprises relay, coil one end of relay connects the signal output part of time-base integrated circuit, one end ground connection, the first normally opened contact of relay is connected in the power circuit of VMC (Ventilation Mechanical Control System) scavenger fan; Described lighting lamp control circuit comprises the second normally opened contact of relay, and the second normally opened contact is connected in the power circuit of illuminating lamp.
4. equipment room fresh air ventilating switch gate automaton according to claim 3, it is characterized in that: described lighting lamp control circuit also comprises light-operated circuit.
5. equipment room fresh air ventilating switch gate automaton according to claim 4, it is characterized in that: described light-operated circuit comprises photoresistance, adjustable resistance, diac, bidirectional triode thyristor and phase-shift capacitor, described photoresistance one end connects power supply, the other end connects the adjustable side of adjustable resistance, the first end of adjustable resistance connects illuminating lamp, and the second end connects power supply after connecting phase-shift capacitor; Illuminating lamp also is connected with bidirectional triode thyristor, and the control utmost point of bidirectional triode thyristor connects the second end of adjustable resistance by diac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433401 CN202748621U (en) | 2012-08-29 | 2012-08-29 | Machine room central ventilation system open-close door automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433401 CN202748621U (en) | 2012-08-29 | 2012-08-29 | Machine room central ventilation system open-close door automatic control device |
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| Publication Number | Publication Date |
|---|---|
| CN202748621U true CN202748621U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220433401 Expired - Fee Related CN202748621U (en) | 2012-08-29 | 2012-08-29 | Machine room central ventilation system open-close door automatic control device |
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| CN (1) | CN202748621U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249797A (en) * | 2016-10-12 | 2016-12-21 | 成都赛昂电子科技有限公司 | A kind of constant-current driving type intelligence control system based on voltage-regulating circuit |
| CN106322690A (en) * | 2016-10-12 | 2017-01-11 | 成都赛昂电子科技有限公司 | Intelligent control system based on constant-current drive circuit |
| CN106439754A (en) * | 2016-10-12 | 2017-02-22 | 成都赛昂电子科技有限公司 | Multi-circuit processing type intelligent control system |
| CN106569464A (en) * | 2016-10-12 | 2017-04-19 | 成都赛昂电子科技有限公司 | Intelligent control system |
| CN106655100A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on over current protection circuit |
| CN106647905A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on voltage adjusting circuit |
-
2012
- 2012-08-29 CN CN 201220433401 patent/CN202748621U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249797A (en) * | 2016-10-12 | 2016-12-21 | 成都赛昂电子科技有限公司 | A kind of constant-current driving type intelligence control system based on voltage-regulating circuit |
| CN106322690A (en) * | 2016-10-12 | 2017-01-11 | 成都赛昂电子科技有限公司 | Intelligent control system based on constant-current drive circuit |
| CN106439754A (en) * | 2016-10-12 | 2017-02-22 | 成都赛昂电子科技有限公司 | Multi-circuit processing type intelligent control system |
| CN106569464A (en) * | 2016-10-12 | 2017-04-19 | 成都赛昂电子科技有限公司 | Intelligent control system |
| CN106655100A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on over current protection circuit |
| CN106647905A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on voltage adjusting circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150829 |
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| EXPY | Termination of patent right or utility model |