CN204061258U - A kind of atmospheric pollution automatic air-exchanging circuit - Google Patents
A kind of atmospheric pollution automatic air-exchanging circuit Download PDFInfo
- Publication number
- CN204061258U CN204061258U CN201420377064.9U CN201420377064U CN204061258U CN 204061258 U CN204061258 U CN 204061258U CN 201420377064 U CN201420377064 U CN 201420377064U CN 204061258 U CN204061258 U CN 204061258U
- Authority
- CN
- China
- Prior art keywords
- fixed value
- value resistance
- resistance
- connects
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model relates to a kind of atmospheric pollution automatic air-exchanging circuit, belongs to electrical and electronic technology field.The utility model comprises ventilation fan, normally opened contact, transformer, rectifier bridge stack, electrochemical capacitor, three-terminal voltage-stabilizing pipe, gas sensing member, adjustable resistance I, fixed value resistance I, voltage comparator, fixed value resistance II, diode, relay, triode, adjustable resistance II, fixed value resistance III, fixed value resistance IV.The utility model when polluting appears in indoor air, can be opened air regenerating device and replace indoor air automatically; This equipment is simple, easy-to-operat.
Description
Technical field
The utility model relates to a kind of atmospheric pollution automatic air-exchanging circuit, belongs to electrical and electronic technology field.
Background technique
In real daily life, there is atmospheric pollution in an indoor load, as the foul smell, smoke from cigarette etc. of smog during cooking, toilet, can have an impact to our healthy.If invent a kind of circuit, when polluting appears in indoor air, can automatically open air regenerating device and replace indoor air, be necessary in the prior art.
Summary of the invention
The utility model provides a kind of atmospheric pollution automatic air-exchanging circuit, for solution when polluting appears in indoor air, automatically can open the problem that air regenerating device is replaced indoor air.
The technical solution of the utility model is: a kind of atmospheric pollution automatic air-exchanging circuit, comprises ventilation fan 1, normally opened contact 2, transformer 3, rectifier bridge stack 4, electrochemical capacitor 5, three-terminal voltage-stabilizing pipe 6, gas sensing member 7, adjustable resistance I 8, fixed value resistance I 9, voltage comparator 10, fixed value resistance II 11, diode 12, relay 13, triode 14, adjustable resistance II 15, fixed value resistance III 16, fixed value resistance IV 17, a wherein termination N line of ventilation fan 1, one end of the normally opened contact 2 of the other end contact relay 13 of ventilation fan 1, another termination L line of the normally opened contact 2 of relay 13, the primary air of transformer 3 connects power supply, the secondary winding of transformer 3 connects the input end of rectifier bridge stack 4, the minus earth of rectifier bridge stack 4 output terminal, the positive pole of rectifier bridge stack 4 output terminal connects the positive pole of electrochemical capacitor 5, the minus earth of electrochemical capacitor 5, the positive pole of electrochemical capacitor 5 connects the input end of three-terminal voltage-stabilizing pipe 6, the grounding end ground connection of three-terminal voltage-stabilizing pipe 6, the output terminal of three-terminal voltage-stabilizing pipe 6 connects power end and the input end of gas sensing member 7 respectively, one end of adjustable resistance I 8, the negative pole of diode 12 and the positive level of relay 13, the grounding end ground connection of gas sensing member 7, the output terminal of gas sensing member 7 connects one end of adjustable resistance II 15 and "+" input end of voltage comparator 10 respectively, one end of another termination fixed value resistance III 16 of adjustable resistance II 15, the other end ground connection of fixed value resistance III 16, one end of another termination fixed value resistance I 9 of adjustable resistance I 8, the other end of fixed value resistance I 9 connects the "-" input end of voltage comparator 10 and one end of fixed value resistance IV 17 respectively, the other end ground connection of fixed value resistance IV 17, one end of the output termination fixed value resistance II 11 of voltage comparator 10, the other end of fixed value resistance II 11 connects the positive pole of diode 12 and the base stage of triode 14 respectively, the negative pole of the collector connecting relay 13 of triode 14, the grounded-emitter connection of triode 14.
When described gas sensing member 7 output terminal has voltage to export, the normally opened contact 2 of relay 13 closes, and ventilation fan 1 is started working.
Working principle of the present utility model is:
During circuit working, when not having dusty gas, gas sensing member 7 is in high-impedance state, output terminal does not have voltage to export, and now input "+" end of voltage comparator 10 is in low potential, and its output terminal is also low potential, triode 14 ends, and does not have electric current by the coil of relay 13.
When dusty gas being detected, gas sensing member 7 output terminal has 2-3V voltage to export, by adjustable resistance I 8, adjustable resistance II 15 adjusts the critical operation point of control signal, and make the output voltage of gas sensing member 7 higher than the "-" input end current potential of voltage comparator 10, now the output terminal of voltage comparator 10 is reversed to high petential, triode 14 conducting, have electric current by the coil of relay 13, the normally opened contact 2 of relay 13 closes, and ventilation fan 1 is started working.
Composed component described in the utility model is commercial elements.
The beneficial effects of the utility model are: when polluting appears in indoor air, can automatically can open air regenerating device and replace indoor air; This equipment is simple, easy-to-operat.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model;
Each label in figure: 1 be ventilation fan, 2 be normally opened contact, 3 be transformer, 4 be rectifier bridge stack, 5 be electrochemical capacitor, 6 be three-terminal voltage-stabilizing pipe, 7 be gas sensing member, 8 for adjustable resistance I, 9 for fixed value resistance I, 10 be voltage comparator, 11 for fixed value resistance II, 12 be diode, 13 be relay, 14 be triode, 15 for adjustable resistance II, 16 for fixed value resistance III, 17 is fixed value resistance IV.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of atmospheric pollution automatic air-exchanging circuit, comprises ventilation fan 1, normally opened contact 2, transformer 3, rectifier bridge stack 4, electrochemical capacitor 5, three-terminal voltage-stabilizing pipe 6, gas sensing member 7, adjustable resistance I 8, fixed value resistance I 9, voltage comparator 10, fixed value resistance II 11, diode 12, relay 13, triode 14, adjustable resistance II 15, fixed value resistance III 16, fixed value resistance IV 17, a wherein termination N line of ventilation fan 1, one end of the normally opened contact 2 of the other end contact relay 13 of ventilation fan 1, another termination L line of the normally opened contact 2 of relay 13, the primary air of transformer 3 connects power supply, the secondary winding of transformer 3 connects the input end of rectifier bridge stack 4, the minus earth of rectifier bridge stack 4 output terminal, the positive pole of rectifier bridge stack 4 output terminal connects the positive pole of electrochemical capacitor 5, the minus earth of electrochemical capacitor 5, the positive pole of electrochemical capacitor 5 connects the input end of three-terminal voltage-stabilizing pipe 6, the grounding end ground connection of three-terminal voltage-stabilizing pipe 6, the output terminal of three-terminal voltage-stabilizing pipe 6 connects power end and the input end of gas sensing member 7 respectively, one end of adjustable resistance I 8, the negative pole of diode 12 and the positive level of relay 13, the grounding end ground connection of gas sensing member 7, the output terminal of gas sensing member 7 connects one end of adjustable resistance II 15 and "+" input end of voltage comparator 10 respectively, one end of another termination fixed value resistance III 16 of adjustable resistance II 15, the other end ground connection of fixed value resistance III 16, one end of another termination fixed value resistance I 9 of adjustable resistance I 8, the other end of fixed value resistance I 9 connects the "-" input end of voltage comparator 10 and one end of fixed value resistance IV 17 respectively, the other end ground connection of fixed value resistance IV 17, one end of the output termination fixed value resistance II 11 of voltage comparator 10, the other end of fixed value resistance II 11 connects the positive pole of diode 12 and the base stage of triode 14 respectively, the negative pole of the collector connecting relay 13 of triode 14, the grounded-emitter connection of triode 14.
When described gas sensing member 7 output terminal has voltage to export, the normally opened contact 2 of relay 13 closes, and ventilation fan 1 is started working.
Wherein, the model of described gas sensing member 7 is: MQ-2.
Embodiment 2: as shown in Figure 1, a kind of atmospheric pollution automatic air-exchanging circuit, comprises ventilation fan 1, normally opened contact 2, transformer 3, rectifier bridge stack 4, electrochemical capacitor 5, three-terminal voltage-stabilizing pipe 6, gas sensing member 7, adjustable resistance I 8, fixed value resistance I 9, voltage comparator 10, fixed value resistance II 11, diode 12, relay 13, triode 14, adjustable resistance II 15, fixed value resistance III 16, fixed value resistance IV 17, a wherein termination N line of ventilation fan 1, one end of the normally opened contact 2 of the other end contact relay 13 of ventilation fan 1, another termination L line of the normally opened contact 2 of relay 13, the primary air of transformer 3 connects power supply, the secondary winding of transformer 3 connects the input end of rectifier bridge stack 4, the minus earth of rectifier bridge stack 4 output terminal, the positive pole of rectifier bridge stack 4 output terminal connects the positive pole of electrochemical capacitor 5, the minus earth of electrochemical capacitor 5, the positive pole of electrochemical capacitor 5 connects the input end of three-terminal voltage-stabilizing pipe 6, the grounding end ground connection of three-terminal voltage-stabilizing pipe 6, the output terminal of three-terminal voltage-stabilizing pipe 6 connects power end and the input end of gas sensing member 7 respectively, one end of adjustable resistance I 8, the negative pole of diode 12 and the positive level of relay 13, the grounding end ground connection of gas sensing member 7, the output terminal of gas sensing member 7 connects one end of adjustable resistance II 15 and "+" input end of voltage comparator 10 respectively, one end of another termination fixed value resistance III 16 of adjustable resistance II 15, the other end ground connection of fixed value resistance III 16, one end of another termination fixed value resistance I 9 of adjustable resistance I 8, the other end of fixed value resistance I 9 connects the "-" input end of voltage comparator 10 and one end of fixed value resistance IV 17 respectively, the other end ground connection of fixed value resistance IV 17, one end of the output termination fixed value resistance II 11 of voltage comparator 10, the other end of fixed value resistance II 11 connects the positive pole of diode 12 and the base stage of triode 14 respectively, the negative pole of the collector connecting relay 13 of triode 14, the grounded-emitter connection of triode 14.
When described gas sensing member 7 output terminal has voltage to export, the normally opened contact 2 of relay 13 closes, and ventilation fan 1 is started working.
Wherein, the model of described gas sensing member 7 is: MQ-135.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (2)
1. an atmospheric pollution automatic air-exchanging circuit, is characterized in that: comprise ventilation fan (1), normally opened contact (2), transformer (3), rectifier bridge stack (4), electrochemical capacitor (5), three-terminal voltage-stabilizing pipe (6), gas sensing member (7), adjustable resistance I (8), fixed value resistance I (9), voltage comparator (10), fixed value resistance II (11), diode (12), relay (13), triode (14), adjustable resistance II (15), fixed value resistance III (16), fixed value resistance IV (17), a wherein termination N line of ventilation fan (1), one end of the normally opened contact (2) of the other end contact relay (13) of ventilation fan (1), another termination L line of the normally opened contact (2) of relay (13), the primary air of transformer (3) connects power supply, the secondary winding of transformer (3) connects the input end of rectifier bridge stack (4), the minus earth of rectifier bridge stack (4) output terminal, the positive pole of rectifier bridge stack (4) output terminal connects the positive pole of electrochemical capacitor (5), the minus earth of electrochemical capacitor (5), the positive pole of electrochemical capacitor (5) connects the input end of three-terminal voltage-stabilizing pipe (6), the grounding end ground connection of three-terminal voltage-stabilizing pipe (6), the output terminal of three-terminal voltage-stabilizing pipe (6) connects power end and the input end of gas sensing member (7) respectively, one end of adjustable resistance I (8), the negative pole of diode (12) and the positive level of relay (13), the grounding end ground connection of gas sensing member (7), the output terminal of gas sensing member (7) connects one end of adjustable resistance II (15) and "+" input end of voltage comparator (10) respectively, one end of another termination fixed value resistance III (16) of adjustable resistance II (15), the other end ground connection of fixed value resistance III (16), one end of another termination fixed value resistance I (9) of adjustable resistance I (8), the other end of fixed value resistance I (9) connects the "-" input end of voltage comparator (10) and one end of fixed value resistance IV (17) respectively, the other end ground connection of fixed value resistance IV (17), one end of the output termination fixed value resistance II (11) of voltage comparator (10), the other end of fixed value resistance II (11) connects the positive pole of diode (12) and the base stage of triode (14) respectively, the negative pole of the collector connecting relay (13) of triode (14), the grounded-emitter connection of triode (14).
2. atmospheric pollution automatic air-exchanging circuit according to claim 1, is characterized in that: when described gas sensing member (7) output terminal has voltage to export, and the normally opened contact (2) of relay (13) closes, and ventilation fan (1) is started working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377064.9U CN204061258U (en) | 2014-07-09 | 2014-07-09 | A kind of atmospheric pollution automatic air-exchanging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377064.9U CN204061258U (en) | 2014-07-09 | 2014-07-09 | A kind of atmospheric pollution automatic air-exchanging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061258U true CN204061258U (en) | 2014-12-31 |
Family
ID=52202785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420377064.9U Expired - Fee Related CN204061258U (en) | 2014-07-09 | 2014-07-09 | A kind of atmospheric pollution automatic air-exchanging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288913A (en) * | 2017-07-25 | 2017-10-24 | 赖海荣 | Exhaust fan |
| CN108337790A (en) * | 2018-03-19 | 2018-07-27 | 佛山科学技术学院 | Based on monolithic processor controlled energy saving toilet control device |
-
2014
- 2014-07-09 CN CN201420377064.9U patent/CN204061258U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288913A (en) * | 2017-07-25 | 2017-10-24 | 赖海荣 | Exhaust fan |
| CN108337790A (en) * | 2018-03-19 | 2018-07-27 | 佛山科学技术学院 | Based on monolithic processor controlled energy saving toilet control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103166175A (en) | Input overvoltage protection circuit for light-emitting diode (LED) driving power supply | |
| CN208127862U (en) | No-voltage opens switch, induction controller and the lamps and lanterns closed with zero current | |
| CN204578083U (en) | To ask for power type lightning arrester supervisory control system | |
| CN204061258U (en) | A kind of atmospheric pollution automatic air-exchanging circuit | |
| CN205453116U (en) | Survival voltage bleeder circuit and electric rice cooker | |
| CN203491680U (en) | Automatic reset electric leakage overvoltage/undervoltage protection circuit | |
| CN204068193U (en) | A kind of small area analysis electronic circuit breaker | |
| CN104578339A (en) | Inductive power-obtaining device of high-voltage line robot and working method of inductive power-obtaining device | |
| CN204836131U (en) | Effective switch input signal acquisition circuit of high level | |
| CN205304230U (en) | Contactor protection control circuit and air conditioning equipment | |
| CN205051349U (en) | Live wire and zero line connect wrong automatic break circuit | |
| CN204790456U (en) | A on -off control device for family's power management | |
| CN204103799U (en) | A kind of power circuit of gas ionization pipe | |
| CN103401215A (en) | Over-voltage and under-voltage protection circuit, protection socket and terminal | |
| CN203205828U (en) | LED driving power supply input overvoltage protection circuit | |
| CN203786237U (en) | Alternating current zero line and fire line identification circuit | |
| CN205265229U (en) | Electrical load safety protection system | |
| CN105425620A (en) | Intelligent power switch capable of adjusting power-off time | |
| CN201174603Y (en) | Solar inverter | |
| CN204481705U (en) | A kind of single live wire power getting device | |
| CN204205964U (en) | A kind of power supply change-over device of audio-frequency power amplifier | |
| CN204716582U (en) | A kind of air bells exhauster | |
| CN203352136U (en) | Overvoltage/undervoltage protection circuit, protection socket and terminal | |
| CN203151072U (en) | Intelligent molded case circuit breaker undervoltage tripping control module | |
| CN201754499U (en) | Electricity restriction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141231 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |