CN204315045U - Kitchen combustible gas leak alarm air interchanger - Google Patents
Kitchen combustible gas leak alarm air interchanger Download PDFInfo
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- CN204315045U CN204315045U CN201520006694.XU CN201520006694U CN204315045U CN 204315045 U CN204315045 U CN 204315045U CN 201520006694 U CN201520006694 U CN 201520006694U CN 204315045 U CN204315045 U CN 204315045U
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Abstract
The utility model provides a kind of kitchen combustible gas leak alarm air interchanger, and its feature comprises: 9V direct supply, inflammable gas testing circuit, multivibrator and audio output circuit, 220V AC power, detecting circuit and ventilating fan control circuit.In order to solve or make up the defect that gas alarm device on the market exists, kitchen described in the utility model combustible gas leak alarm air interchanger utilizes gas sensor as a kind of gas leakage alarming device of detecting element, it is applicable to the detection alarm of the combustible gas leakages such as rock gas, coal gas, gasoline, carbon monoxide, hydrogen, alkanes, alcohols, and can while combustible gas leak alarm being detected, automatic unlatching scavenger fan makes its ventilation that operates, thus reduces rapidly the concentration leaking into inflammable gas in kitchen.
Description
Technical field
The utility model belongs to inflammable gas use safety technical field, is about a kind of kitchen combustible gas leak alarm air interchanger.
Background technology
Most of resident using rock gas or oil liquefied gas to cook, cook, when boiling water, in the process of hotting plate, soup spill happens occasionally, this is easy to gas flame on kitchen range to put out, cause combustible gas leakage, once fail Timeliness coverage, likely lead to fire failure, likely cause any property loss or life threatening.Fuel gas alarm majority sold on the market is mounted in above the lampblack absorber on kitchen range top, detect gas leakage and be confined in the very little region of kitchen range, and gas leakage just can detect to during finite concentration.
In order to solve or make up the defect that gas alarm device on the market exists, kitchen described in the utility model combustible gas leak alarm air interchanger utilizes gas sensor as a kind of gas leakage alarming device of detecting element, it is applicable to the detection alarm of the combustible gas leakages such as rock gas, coal gas, gasoline, carbon monoxide, hydrogen, alkanes, alcohols, and can while combustible gas leak alarm being detected, automatic unlatching scavenger fan makes its ventilation that operates, thus reduces rapidly the concentration leaking into inflammable gas in kitchen.
Below describe the relevant technologies content that kitchen described in the utility model combustible gas leak alarm air interchanger is involved in implementation process in detail.
Utility model content
Goal of the invention and beneficial effect: in order to solve or make up the defect that gas alarm device on the market exists, kitchen described in the utility model combustible gas leak alarm air interchanger utilizes gas sensor as a kind of gas leakage alarming device of detecting element, it is applicable to the detection alarm of the combustible gas leakages such as rock gas, coal gas, gasoline, carbon monoxide, hydrogen, alkanes, alcohols, and can while combustible gas leak alarm being detected, automatic unlatching scavenger fan makes its ventilation that operates, thus reduces rapidly the concentration leaking into inflammable gas in kitchen.
Circuit working principle: kitchen combustible gas leak alarm air interchanger is made up of 9V direct supply, gas sensor and multivibrator.9V direct supply is depressurized to about 5V DC voltage through resistance R1 and is supplied to gas sensor QM and uses.Detection Circuit is formed, for detecting inflammable gas with gas sensor QM-N5.When indoor carbon monoxide, hydrogen, alkanes, when the inflammable gass such as alcohols reach certain concentration, gas sensor QM two interelectrode resistance values reduce rapidly, 4th pin of gas sensor QM and the 6th pin voltage are raised rapidly, also the rising of time base circuit IC1 the 4th pin (reset terminal) voltage is made, then the multivibrator that time base circuit IC1 and peripheral Resistor-Capacitor Unit thereof are formed is started working, finally piezoelectricity singing piece HA is driven to sound a buzzer by time base circuit IC1 the 3rd pin output audio signal, and while detection combustible gas leak alarm, bidirectional triode thyristor BCR conducting is driven by detecting circuit, automatic control scavenger fan makes it operate.
Technical scheme: kitchen combustible gas leak alarm air interchanger, it comprises 9V direct supply, inflammable gas testing circuit, multivibrator and audio output circuit, 220V AC power, detecting circuit and ventilating fan control circuit, it is characterized in that:
Inflammable gas testing circuit: it is made up of gas sensor QM, resistance R1, resistance R2 and linear potentiometer RP, the model that gas sensor QM selects is QM-N5,1st pin of gas sensor QM and the 3rd pin connection circuit positive pole VCC, 2nd pin of gas sensor QM is by resistance R1 connection circuit positive pole VCC, 5th pin of gas sensor QM connects one end of linear potentiometer RP, 4th pin of the other end of linear potentiometer RP and movable end connection circuit ground GND, gas sensor QM and the 6th pin are by resistance R2 connection circuit ground GND;
Multivibrator and audio output circuit: it is by time base circuit IC1, resistance R3, electric capacity C1 and piezoelectricity singing piece HA forms, the model that time base circuit IC1 selects is NE555, time base circuit IC1 the 8th pin connection circuit positive pole VCC, time base circuit IC1 the 4th pin connects the 4th pin and the 6th pin of gas sensor QM, time base circuit IC1 the 2nd pin and the 6th pin connecting resistance R3 one end and electric capacity C1 one end, resistance R3 other end connection circuit positive pole VCC, electric capacity C1 other end connection circuit ground GND, time base circuit IC1 the 1st pin connection circuit ground GND, time base circuit IC1 the 3rd pin is by piezoelectricity singing piece HA connection circuit ground GND,
9V DC power anode is connected with circuit anode VCC, 9V DC power cathode connection circuit ground GND and the zero line side N connecing 220V AC power;
Detecting circuit and ventilating fan control circuit: it is made up of switching diode D1, electrochemical capacitor C2, bidirectional triode thyristor BCR and scavenger fan, time base circuit IC1 the 3rd pin connects switching diode D1 positive pole, switching diode D1 negative pole connects electrochemical capacitor C2 positive pole and bidirectional triode thyristor BCR controls pole G, the second anode T2 of bidirectional triode thyristor BCR connects one end of scavenger fan, the first anode T1 of the live wire end L of another termination 220V AC power of scavenger fan, bidirectional triode thyristor BCR meets the zero line side N of 220V AC power.
Accompanying drawing explanation
Fig. 1 is the embodiment circuit working schematic diagram that the utility model provides a kitchen combustible gas leak alarm air interchanger.
Embodiment
According to kitchen shown in the drawings combustible gas leak alarm air interchanger circuit working schematic diagram and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in embodiment requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.
The technical parameter of components and parts and selection requirement
QM is gas sensor, and the model selected is QM-N5, or selects the models such as QM211;
IC1 is time base circuit, and the model selected is NE555 or LM555, and packing forms is dual inline type 8 pin; Each pin function: 1 pin is circuit ground GND; 2 pin are trigger end; 3 pin output terminals; 4 pin preset ends; 5 pin are control voltage; 6 pin thresholdings (threshold value); 7 pin are discharge end; 8 pin are positive source VCC;
RP is linear potentiometer, and the resistance of employing is 18 Ω, power is 1/2W solid potentiometer;
Resistance all uses metalfilmresistor, and the resistance of resistance R1 is 82 Ω, power is 1/2W; Resistance R2 resistance is 100K Ω; The resistance of resistance R3 is 47K Ω;
C1 is electric capacity of the dacron, and its capacity is 10nF (0.01 μ F);
C2 is electrochemical capacitor, and its capacity is 1000 μ F/16V;
D1 is switching diode, and the model selected is 1N4148;
BCR is bidirectional triode thyristor, and its technical parameter is 1A/400V;
HA is piezoelectricity singing piece, diameter ￠ 42mm, and acoustic maximum intensity is 100dB, and the diameter of piezoelectricity singing piece can not be less than 30mm, otherwise the responding range of frequency may be affected;
Scavenger fan power≤100W used is required in the utility model circuit.
Circuit production main points and circuit debugging
Because the circuit structure of kitchen combustible gas leak alarm air interchanger is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model only needs to carry out simple debugging and can normally work;
When circuit debugging, combustible gas photosensitive elements QM is put into certain density gas sample and detect bottle or sample sack, adjustment linear potentiometer RP makes gas sensor QM be in criticality alarm state;
The debugging of detecting circuit and ventilating fan control circuit, when circuit is in alarm condition, measure switching diode D1 negative DC voltage should >=6V, now bidirectional triode thyristor BCR is in conducting state, and scavenger fan starts rotating speed rapidly;
In order to detect combustible gas leakage, can to cover room wider, can according to inflammable gas character adjustment kitchen combustible gas leak alarm air interchanger setting height(from bottom).If use rock gas or should higher position be arranged on for detecting smog, if use oil liquefied gas suggestion to install as far as possible lower position.
The outward appearance of circuit components layout of the present utility model, board design, kitchen combustible gas leak alarm air interchanger and physical dimension etc. are not guardian techniques of the present utility model; neither the claimed technology contents of the utility model, therefore do not illustrate one by one in the description.
Claims (1)
1. a kitchen combustible gas leak alarm air interchanger, it comprises 9V direct supply, inflammable gas testing circuit, multivibrator and audio output circuit, 220V AC power, detecting circuit and ventilating fan control circuit, it is characterized in that:
Described inflammable gas testing circuit is made up of gas sensor QM, resistance R1, resistance R2 and linear potentiometer RP, the model that gas sensor QM selects is QM-N5,1st pin of gas sensor QM and the 3rd pin connection circuit positive pole VCC, 2nd pin of gas sensor QM is by resistance R1 connection circuit positive pole VCC, 5th pin of gas sensor QM connects one end of linear potentiometer RP, 4th pin of the other end of linear potentiometer RP and movable end connection circuit ground GND, gas sensor QM and the 6th pin are by resistance R2 connection circuit ground GND;
Described multivibrator and audio output circuit are by time base circuit IC1, resistance R3, electric capacity C1 and piezoelectricity singing piece HA forms, the model that time base circuit IC1 selects is NE555, time base circuit IC1 the 8th pin connection circuit positive pole VCC, time base circuit IC1 the 4th pin connects the 4th pin and the 6th pin of gas sensor QM, time base circuit IC1 the 2nd pin and the 6th pin connecting resistance R3 one end and electric capacity C1 one end, resistance R3 other end connection circuit positive pole VCC, electric capacity C1 other end connection circuit ground GND, time base circuit IC1 the 1st pin connection circuit ground GND, time base circuit IC1 the 3rd pin is by piezoelectricity singing piece HA connection circuit ground GND,
Described 9V DC power anode is connected with circuit anode VCC, 9V DC power cathode connection circuit ground GND and the zero line side N connecing 220V AC power;
Described detecting circuit and ventilating fan control circuit are made up of switching diode D1, electrochemical capacitor C2, bidirectional triode thyristor BCR and scavenger fan, time base circuit IC1 the 3rd pin connects switching diode D1 positive pole, switching diode D1 negative pole connects electrochemical capacitor C2 positive pole and bidirectional triode thyristor BCR controls pole G, the second anode T2 of bidirectional triode thyristor BCR connects one end of scavenger fan, the first anode T1 of the live wire end L of another termination 220V AC power of scavenger fan, bidirectional triode thyristor BCR meets the zero line side N of 220V AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006694.XU CN204315045U (en) | 2015-01-06 | 2015-01-06 | Kitchen combustible gas leak alarm air interchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006694.XU CN204315045U (en) | 2015-01-06 | 2015-01-06 | Kitchen combustible gas leak alarm air interchanger |
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| Publication Number | Publication Date |
|---|---|
| CN204315045U true CN204315045U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520006694.XU Expired - Fee Related CN204315045U (en) | 2015-01-06 | 2015-01-06 | Kitchen combustible gas leak alarm air interchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204315045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978828A (en) * | 2015-06-23 | 2015-10-14 | 成都亿信标准认证集团有限公司 | Combustible gas alarm and exhaust system in data storage chamber |
| CN110085004A (en) * | 2019-05-09 | 2019-08-02 | 王亮 | A kind of fuel gas detection alarm self-starting blower fan control system |
-
2015
- 2015-01-06 CN CN201520006694.XU patent/CN204315045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978828A (en) * | 2015-06-23 | 2015-10-14 | 成都亿信标准认证集团有限公司 | Combustible gas alarm and exhaust system in data storage chamber |
| CN110085004A (en) * | 2019-05-09 | 2019-08-02 | 王亮 | A kind of fuel gas detection alarm self-starting blower fan control system |
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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: 20150506 Termination date: 20160106 |