CN204574384U - The precious circuit of a kind of mini air based on QM-N5 gas sensor - Google Patents
The precious circuit of a kind of mini air based on QM-N5 gas sensor Download PDFInfo
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- CN204574384U CN204574384U CN201520270835.9U CN201520270835U CN204574384U CN 204574384 U CN204574384 U CN 204574384U CN 201520270835 U CN201520270835 U CN 201520270835U CN 204574384 U CN204574384 U CN 204574384U
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Abstract
The utility model discloses the precious circuit of a kind of mini air based on QM-N5 gas sensor, comprise power circuit, testing circuit and negative oxygen ion circuit for generating, described power circuit comprises transformer W1, rectifier bridge T and electric capacity C1, described testing circuit comprises gas sensor IC3, diode D1, potentiometer RP1 and triode VT1, and described negative oxygen ion circuit for generating comprises transformer W2, diode D3, chip IC 4 and discharging terminals A.The precious circuit components of the utility model air is few, use QM-N5 gas sensor as pernicious gas detecting element, cheap, open needle-like discharging terminals carries out electrion, thus improve negative oxygen ion concentration, minimizing ozone concentration, effective purified air and reached save the object of electric energy, therefore this circuit has the advantage that structure is simple, cost of manufacture is low and save electric energy, is applicable to promoting the use of.
Description
Technical field
It is precious that the utility model relates to a kind of air, specifically the precious circuit of a kind of mini air based on QM-N5 gas sensor.
Background technology
At present, the living standard of people improves constantly, suitability for industrialized production develop rapidly, private car also gets more and more, thus cause the living environment of people constantly to worsen, especially there is the situation of haze in many cities in recent years, often there is the report of serious pollution in weather forecast, people go out needs band to muzzle, outdoor air ambient deterioration causes indoor air to degenerate simultaneously thereupon, therefore indoor air purification is indispensable technical measures of living at home, existing air purifier, air treasured is varied, but most of internal circuit configuration is complicated, thus cause the cost of manufacture of this kind of device high, price is higher, substantially all several thousand yuan of prices, and power consumption is higher, therefore, a lot of family cannot use, the use hindering this kind of device is promoted.
Utility model content
The purpose of this utility model is to provide a kind of structure mini air based on QM-N5 gas sensor that is simple, that save electric energy precious circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
The precious circuit of a kind of mini air based on QM-N5 gas sensor, comprise power circuit, testing circuit and negative oxygen ion circuit for generating, described power circuit comprises transformer W1, rectifier bridge T and electric capacity C1, described testing circuit comprises gas sensor IC3, diode D1, potentiometer RP1 and triode VT1, and described negative oxygen ion circuit for generating comprises transformer W2, diode D3, chip IC 4 and discharging terminals A;
The two ends of a winding L 1 of transformer W1 connect 220V line voltage respectively, one end of the Secondary Winding L2 of transformer W connects fuse F, the other end of resistance wire F connects 1 port of rectifier bridge T, the other end of the Secondary Winding L2 of transformer W connects 3 ports of rectifier bridge T, 2 ports of rectifier bridge T connect 1 pin of electric capacity C1 and chip IC 1, the 4 port contact resistance R2 of rectifier bridge T, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, the negative electrode of diode D1, the emitter stage of triode VT1, 2 pins of chip IC 1, 5 pins of gas sensor IC3, 3 pins of chip IC 4 and the Secondary Winding L4 of transformer W2, 3 pin contact resistance R1 of chip IC 1, resistance R4, 1 pin of chip IC 2, 1 pin of gas sensor IC3, 2 pins of gas sensor IC3, 5 pins of chip IC 1 and a winding L 3 of transformer W2, the other end of resistance R1 connects the anode of diode D1, 2 pins of chip IC 2 connect 2 pins of gas sensor IC3, 3 pin ground connection of chip IC 2, 4 pins of gas sensor IC3 connect the stiff end of potentiometer RP1 and 6 pins of gas sensor IC3, the sliding end of potentiometer RP1 connects the anode of diode D1, the other end of another stiff end contact resistance R2 of potentiometer RP1, the other end of diode D1 connects the other end of electric capacity C2 and the anode of diode D2, the other end of pin contact resistance R3 of diode D2 and the base stage of triode VT1, the colelctor electrode of triode VT1 connects the negative electrode of diode D3 and 2 pins of chip IC 4, the other end of the anode contact resistance R4 of diode D3, 1 pin contact resistance R4 of chip IC 4 and the other end of electric capacity C3, the other end of resistance R5 connects the other end of 4 pins of chip IC 4 and a winding L 3 of transformer W2, the other end of the Secondary Winding L4 of transformer W2 connects the anode of diode D4, the negative electrode contact resistance R6 of diode D4, the other end of resistance R6 connects discharging terminals A.
As preferred version of the present utility model: described chip IC 1 and chip IC 2 are 7805 type, three sections of voltage-stablizers, and the model of described gas sensor IC3 is QM-N5, and described chip IC 4 is TWH7805 type switch integrated circuit.
As preferred version of the present utility model: 220V voltage is become 15V voltage by a winding L 1 of described transformer W and Secondary Winding L2.
As preferred version of the present utility model: described resistance R2 is negative tempperature coefficient thermistor.
As preferred version of the present utility model: described discharging terminals A is open needle-like discharging terminals.
Compared with prior art, the beneficial effects of the utility model are: the precious circuit components of the utility model air is few, use QM-N5 gas sensor as pernicious gas detecting element, cheap, open needle-like discharging terminals carries out electrion, thus improves negative oxygen ion concentration, minimizing ozone concentration, has effectively purified air and has reached the object of saving electric energy, therefore this circuit has the advantage that structure is simple, cost of manufacture is low and save electric energy, is applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the precious circuit of mini air based on QM-N5 gas sensor;
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the precious circuit of a kind of mini air based on QM-N5 gas sensor, comprise power circuit, testing circuit and negative oxygen ion circuit for generating, described power circuit comprises transformer W1, rectifier bridge T and electric capacity C1, described testing circuit comprises gas sensor IC3, diode D1, potentiometer RP1 and triode VT1, and described negative oxygen ion circuit for generating comprises transformer W2, diode D3, chip IC 4 and discharging terminals A;
The two ends of a winding L 1 of transformer W1 connect 220V line voltage respectively, one end of the Secondary Winding L2 of transformer W connects fuse F, the other end of resistance wire F connects 1 port of rectifier bridge T, the other end of the Secondary Winding L2 of transformer W connects 3 ports of rectifier bridge T, 2 ports of rectifier bridge T connect 1 pin of electric capacity C1 and chip IC 1, the 4 port contact resistance R2 of rectifier bridge T, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, the negative electrode of diode D1, the emitter stage of triode VT1, 2 pins of chip IC 1, 5 pins of gas sensor IC3, 3 pins of chip IC 4 and the Secondary Winding L4 of transformer W2, 3 pin contact resistance R1 of chip IC 1, resistance R4, 1 pin of chip IC 2, 1 pin of gas sensor IC3, 2 pins of gas sensor IC3, 5 pins of chip IC 1 and a winding L 3 of transformer W2, the other end of resistance R1 connects the anode of diode D1, 2 pins of chip IC 2 connect 2 pins of gas sensor IC3, 3 pin ground connection of chip IC 2, 4 pins of gas sensor IC3 connect the stiff end of potentiometer RP1 and 6 pins of gas sensor IC3, the sliding end of potentiometer RP1 connects the anode of diode D1, the other end of another stiff end contact resistance R2 of potentiometer RP1, the other end of diode D1 connects the other end of electric capacity C2 and the anode of diode D2, the other end of pin contact resistance R3 of diode D2 and the base stage of triode VT1, the colelctor electrode of triode VT1 connects the negative electrode of diode D3 and 2 pins of chip IC 4, the other end of the anode contact resistance R4 of diode D3, 1 pin contact resistance R4 of chip IC 4 and the other end of electric capacity C3, the other end of resistance R5 connects the other end of 4 pins of chip IC 4 and a winding L 3 of transformer W2, the other end of the Secondary Winding L4 of transformer W2 connects the anode of diode D4, the negative electrode contact resistance R6 of diode D4, the other end of resistance R6 connects discharging terminals A.
Chip IC 1 and chip IC 2 are 7805 type, three sections of voltage-stablizers, and the model of gas sensor IC3 is QM-N5, and chip IC 4 is TWH7805 type switch integrated circuit.
220V voltage is become 15V voltage by a winding L 1 of transformer W and Secondary Winding L2.
Resistance R2 is negative tempperature coefficient thermistor.
Discharging terminals A is open needle-like discharging terminals.
Operation principle of the present utility model is: circuit access 220V line voltage, 220V alternating current is become 15V direct current by transformer W1, direct current is by inputting Detection Circuit and negative oxygen ion generation circuit after filter capacitor C1 and three section of voltage-stablizer IC1 filtering voltage regulation, when the pernicious gas of indoor reaches finite concentration, 4 of gas sensor IC1, the current potential of 6 pins raises, export the base stage of high level to triode VT1, triode VT1 saturation conduction, make by switch integrated circuit IC4, resistance R5, the oscillator starting of oscillation that electric capacity C3 forms, the high pressure of about 5kV can be obtained at the Secondary Winding L4 of step-up transformer W2.The discharge end A made with tip-like material adopts open, can improve the concentration of negative oxygen ion like this, reduces ozone concentration.When room air is normal, the current potential of 4,6 pins of gas sensor IC1 is very low, and triode VT1 ends, and 2 pins of switch integrated circuit IC4 are high potential, and oscillator does not work, and do not have negative oxygen ion to produce.Thermistor RM in circuit is used for the error that complemental air photosensitive elements IC3 causes due to variations in temperature, potentiometer RP1 is used for regulating gas sensor IC3 to detect the rated value of harmful gas concentration, circuit components is few, use QM-N5 gas sensor as pernicious gas detecting element, cheap, open needle-like discharging terminals carries out electrion, thus improve negative oxygen ion concentration, minimizing ozone concentration, effective purified air and reached save the object of electric energy, therefore this circuit has the advantage that structure is simple, cost of manufacture is low and save electric energy.
Claims (5)
1., based on the precious circuit of mini air of QM-N5 gas sensor, comprise power circuit, testing circuit and negative oxygen ion circuit for generating; It is characterized in that, described power circuit comprises transformer W1, rectifier bridge T and electric capacity C1, described testing circuit comprises gas sensor IC3, diode D1, potentiometer RP1 and triode VT1, and described negative oxygen ion circuit for generating comprises transformer W2, diode D3, chip IC 4 and discharging terminals A;
The two ends of a winding L 1 of transformer W1 connect 220V line voltage respectively, one end of the Secondary Winding L2 of transformer W connects fuse F, the other end of resistance wire F connects 1 port of rectifier bridge T, the other end of the Secondary Winding L2 of transformer W connects 3 ports of rectifier bridge T, 2 ports of rectifier bridge T connect 1 pin of electric capacity C1 and chip IC 1, the 4 port contact resistance R2 of rectifier bridge T, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, the negative electrode of diode D1, the emitter stage of triode VT1, 2 pins of chip IC 1, 5 pins of gas sensor IC3, 3 pins of chip IC 4 and the Secondary Winding L4 of transformer W2, 3 pin contact resistance R1 of chip IC 1, resistance R4, 1 pin of chip IC 2, 1 pin of gas sensor IC3, 2 pins of gas sensor IC3, 5 pins of chip IC 1 and a winding L 3 of transformer W2, the other end of resistance R1 connects the anode of diode D1, 2 pins of chip IC 2 connect 2 pins of gas sensor IC3, 3 pin ground connection of chip IC 2, 4 pins of gas sensor IC3 connect the stiff end of potentiometer RP1 and 6 pins of gas sensor IC3, the sliding end of potentiometer RP1 connects the anode of diode D1, the other end of another stiff end contact resistance R2 of potentiometer RP1, the other end of diode D1 connects the other end of electric capacity C2 and the anode of diode D2, the other end of pin contact resistance R3 of diode D2 and the base stage of triode VT1, the colelctor electrode of triode VT1 connects the negative electrode of diode D3 and 2 pins of chip IC 4, the other end of the anode contact resistance R4 of diode D3, 1 pin contact resistance R4 of chip IC 4 and the other end of electric capacity C3, the other end of resistance R5 connects the other end of 4 pins of chip IC 4 and a winding L 3 of transformer W2, the other end of the Secondary Winding L4 of transformer W2 connects the anode of diode D4, the negative electrode contact resistance R6 of diode D4, the other end of resistance R6 connects discharging terminals A.
2. the precious circuit of a kind of mini air based on QM-N5 gas sensor according to claim 1, it is characterized in that, described chip IC 1 and chip IC 2 are 7805 type, three sections of voltage-stablizers, and the model of described gas sensor IC3 is QM-N5, and described chip IC 4 is TWH7805 type switch integrated circuit.
3. the precious circuit of a kind of mini air based on QM-N5 gas sensor according to claim 1, it is characterized in that, 220V voltage is become 15V voltage by a winding L 1 of described transformer W and Secondary Winding L2.
4. the precious circuit of a kind of mini air based on QM-N5 gas sensor according to claim 1, it is characterized in that, described resistance R2 is negative tempperature coefficient thermistor.
5. the precious circuit of a kind of mini air based on QM-N5 gas sensor according to claim 1, it is characterized in that, described discharging terminals A is open needle-like discharging terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520270835.9U CN204574384U (en) | 2015-04-21 | 2015-04-21 | The precious circuit of a kind of mini air based on QM-N5 gas sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520270835.9U CN204574384U (en) | 2015-04-21 | 2015-04-21 | The precious circuit of a kind of mini air based on QM-N5 gas sensor |
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| CN204574384U true CN204574384U (en) | 2015-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855907A (en) * | 2020-07-24 | 2020-10-30 | 湖南弘鑫知识产权代理有限公司 | Automatic disinfection management system |
-
2015
- 2015-04-21 CN CN201520270835.9U patent/CN204574384U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855907A (en) * | 2020-07-24 | 2020-10-30 | 湖南弘鑫知识产权代理有限公司 | Automatic disinfection management system |
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| CF01 | Termination of patent right due to non-payment of annual fee |