CN2777539Y - Multifunctional gas detector - Google Patents
Multifunctional gas detector Download PDFInfo
- Publication number
- CN2777539Y CN2777539Y CN 200520020420 CN200520020420U CN2777539Y CN 2777539 Y CN2777539 Y CN 2777539Y CN 200520020420 CN200520020420 CN 200520020420 CN 200520020420 U CN200520020420 U CN 200520020420U CN 2777539 Y CN2777539 Y CN 2777539Y
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Abstract
The utility model provides a multifunctional gas detector, which comprises a power source unit composed of a rectifying filter circuit and a voltage stabilizing circuit, an alarm detection circuit, a detection circuit for gas-sensitive element circuit break, a control circuit, a driving control circuit and a sound-light alarm circuit, wherein the power source unit, the alarm detection circuit and the detection circuit for gas-sensitive element circuit break are respectively connected with the control circuit; the output of the control circuit is respectively connected with the driving control circuit and the sound-light alarm circuit. The utility model under the condition of gas leakage not only can send out alarm signals in time, but also can cut off the power source to prevent the occurrence of danger. Users of the utility model can change a change-over switch SW according to different kinds of gases to meet the requirements of the users. The utility model has the advantages of convenience and rapidity.
Description
(1), technical field
The utility model relates to a kind of warning device, a kind of specifically family expenses combustible gas detector.
(2), background technology
Combustible gas has become huge numbers of families' main energy sources, and its use has also brought a lot of hazards when the life of giving people brings convenience.Because blast and intoxication accident that gas leakage causes are of common occurrence, the safety of people's lives and properties in serious threat.In order to address this problem, existing multiple flammable gas alarm device is used widely.Fuel gas alarm generally is made up of sensor and control circuit, and when combustible gas leakage reached finite concentration, alarm just sent alerting signals such as sound, light, and the output control signal, cuts off source of the gas.
The employed combustion gas of resident at present roughly has three kinds, i.e. artificial coal gas, rock gas and liquefied petroleum gas (LPG), and the composition of these three kinds of gases is incomplete same, and the alarm range to these three kinds of gases in national standard has clearly regulation.Present domestic gas detector can only be monitored a kind of gas, if user's source of the gas changes, original detector will cancel, and this will bring great convenience to people if a detector can be checked multiple gases.
(3), summary of the invention
It is rational in infrastructure simple that the purpose of this utility model is to provide, and can select the different position of the switch according to the source of the gas difference of user's use, goes for the multifunctional fuel detector of multiple gases.
The purpose of this utility model is achieved in that it comprises the power supply unit that is made of current rectifying and wave filtering circuit and mu balanced circuit, power supply unit, alarm detection circuit and gas sensor broken circuit detection circuit are connected control circuit respectively, and the output of control circuit connects Drive and Control Circuit and sound light alarming circuit respectively.
Described rectified wave circuit is by transformer T
1, diode D
2, D
3, D
4, D
5, capacitor C D3, C3 form.The 3rd pin of T1 is connected with the positive pole of D3, the negative pole of D5.The 4th pin of T1 is connected with the positive pole of D2, the negative pole of D4.C3, CD3 are connected with the negative pole of D2, D3, the positive pole of D4, D5 respectively.
Described mu balanced circuit is by stabilivolt U
3, capacitor C
2Form, the 3rd pin of U3 is connected with the positive pole of C2.
Described alarm detection circuit is by gas sensor QM, resistance R
1, R
13, R
3, W
1, W
2, switch SW and IC1A form.R1 links to each other with the 3rd pin of QM, and R3 links to each other with the 5th pin of QM, links to each other with the input end in the same way of IC1A again.W
1, W
2Link to each other with the 6th pin of QM respectively, connect switch SW again and link to each other with the reverse input end of IC1A.The 1st pin of IC1A links to each other with the 6th pin of IC2.
Described Drive and Control Circuit is by resistance R
10, triode Q
1, capacitor C D
1, CD
2, diode D
1, D
6, relay J
1Form, 8 pin of IC meet Q
1Base stage CK1 connect solenoid valve.R
10Link to each other with the 5th pin of T1, be connected with the positive pole of D1, the negative pole of D1 links to each other with the positive pole of CD1, CD2 respectively, and the negative pole of D6 links to each other with 1,2 pin of relay J 1 respectively.
Described sound light alarming circuit LED
1, LED
2, LED
3, resistance R
12, R
5, R
4, triode Q
2, hummer BELL forms LED
1, LED
2, LED
3Respectively through R
12, R
5, R
4, be connected to IC
1The 1st, 2,18 pin.The base stage of Q2 connects the 9th pin of IC2, and the emitter of Q3 connects hummer.
Described gas sensor broken circuit detection circuit is by resistance R
2, R
6, R
7, IC1B forms IC
17 pin of B meet IC
27 pin.R6, R7 connect the input end in the same way of IC1B respectively, and R2 links to each other with the H end of QM, connects the reverse input end of IC1B again.
The 5th pin of gas sensor QM produces the change in voltage about IV, W
1, W
2, W
3It is accurate adjustable resistance, the 3 pin voltages of IC1 are higher than 2 pin voltages when gas leakage, 1 pin output HIGH voltage, after 1 pin that IC2 collects IC1 is high level, judge, finish following control action through the operation of program, the triode of Drive and Control Circuit, the Q1 conducting, source of the gas is cut off in the solenoid valve action, and the LED1 flicker of sound light alarming circuit is reported to the police.
According to the national standard requirement, the warning concentration of various inflammable gass is different.High-precision gas sensor, the signal that the gas of different concentration is exported is different.User of the present utility model can change switch SW according to the combustion gas kind difference of using, and just can satisfy user's requirement, and is convenient, fast.
(4), description of drawings
Accompanying drawing is the electrical block diagram of preferred embodiment of the utility model.
(5), specific embodiments
For example the utility model is done more detailed description below in conjunction with accompanying drawing:
The composition of multifunctional fuel detector comprises the power supply unit that is made of current rectifying and wave filtering circuit and mu balanced circuit, power supply unit, alarm detection circuit and gas sensor broken circuit detection circuit are connected control circuit respectively, and the output of control circuit connects Drive and Control Circuit and sound light alarming circuit respectively.
Described rectified wave circuit is by transformer T
1, diode D
2, D
3, D
4, D
5, capacitor C D3, C3 form.The 3rd pin of T1 is connected with the positive pole of D3, the negative pole of D5.The 4th pin of T1 is connected with the positive pole of D2, the negative pole of D4.C3, CD3 are connected with the negative pole of D2, D3, the positive pole of D4, D5 respectively.
Described mu balanced circuit is by stabilivolt U
3, capacitor C
2Form, the 3rd pin of U3 is connected with the positive pole of C2.
Described alarm detection circuit is by gas sensor QM, resistance R
1, R
13, R
3, W
1, W
2, switch SW and IC1A form.R1 links to each other with the 3rd pin of QM, and R 3 links to each other with the 5th pin of QM, links to each other with the input end in the same way of IC1A again.W
1, W
2Link to each other with the 6th pin of QM respectively, connect switch SW again and link to each other with the reverse input end of IC1A.The 1st pin of IC1A links to each other with the 6th pin of IC2.
Described Drive and Control Circuit is by resistance R
10, triode Q
1, capacitor C D
1, CD
2, diode D
1, D
6, relay J
1Form, 8 pin of IC meet Q
1Base stage CK1 connect solenoid valve.R
10Link to each other with the 5th pin of T1, be connected with the positive pole of D1, the negative pole of D1 links to each other with the positive pole of CD1, CD2 respectively, and the negative pole of D6 links to each other with 1,2 pin of relay J 1 respectively.
Described sound light alarming circuit LED
1, LED
2, LED
3, resistance R
12, R
5, R
4, triode Q
2, hummer BELL forms LED
1, LED
2, LED
3Respectively through R
12, R
5, R
4, be connected to IC
1The 1st, 2,18 pin.The base stage of Q2 connects the 9th pin of IC2, and the emitter of Q3 connects hummer.
Described gas sensor broken circuit detection circuit is by resistance R
2, R
6, R
7, IC1B forms IC
17 pin of B meet IC
27 pin.R6, R7 connect the input end in the same way of IC1B respectively, and R2 links to each other with the H end of QM, connects the reverse input end of IC1B again.
Claims (2)
1, a kind of multifunctional fuel detector, it comprises the power supply unit that is made of current rectifying and wave filtering circuit and mu balanced circuit, it is characterized in that: power supply unit, alarm detection circuit and gas sensor broken circuit detection circuit are connected control circuit respectively, and the output of control circuit connects Drive and Control Circuit and sound light alarming circuit respectively.
2, multifunctional fuel detector according to claim 1 is characterized in that:
(1) described rectified wave circuit is by transformer T
1, diode D
2, D
3, D
4, D
5, capacitor C D3, C3 form, and the 3rd pin of T1 is connected with the positive pole of D3, the negative pole of D5, and the 4th pin of T1 is connected with the positive pole of D2, the negative pole of D4, and C3, CD3 are connected with the negative pole of D2, D3, the positive pole of D4, D5 respectively;
(2) described mu balanced circuit is by stabilivolt U
3, capacitor C
2Form, the 3rd pin of U3 is connected with the positive pole of C2;
(3) described alarm detection circuit is by gas sensor QM, resistance R
1, R
13, R
3, W
1, W
2, switch SW and IC1A form, R1 links to each other with the 3rd pin of QM, R3 links to each other with the 5th pin of QM, links to each other W with the input end in the same way of IC1A again
1, W
2Link to each other with the 6th pin of QM respectively, connect switch SW again and link to each other with the reverse input end of IC1A, the 1st pin of IC1A links to each other with the 6th pin of IC2;
(4) described Drive and Control Circuit is by resistance R
10, triode Q
1, capacitor C D
1, CD
2, diode D
1, D
6, relay J
1Form, 8 pin of IC meet Q
1Base stage CK1 connect solenoid valve, R
10Link to each other with the 5th pin of T1, be connected with the positive pole of D1, the negative pole of D1 links to each other with the positive pole of CD1, CD2 respectively, and the negative pole of D6 links to each other with 1,2 pin of relay J 1 respectively;
(5) described sound light alarming circuit LED
1, LED
2, LED
3, resistance R
12, R
5, R
4, triode Q2, hummer BELL form LED
1, LED
2, LED
3Respectively through R
12, R
5, R
4, be connected to IC
1The 1st, 2,18 pin, the base stage of Q2 connects the 9th pin of IC2, the emitter of Q3 connects hummer;
(6) described gas sensor broken circuit detection circuit is by resistance R
2, R
6, R
7, IC1B forms IC
17 pin of B meet IC
27 pin, R6, R7 connect the input end in the same way of IC1B respectively, the H end of R2 and QM links to each other, and connects the reverse input end of IC1B again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020420 CN2777539Y (en) | 2005-03-16 | 2005-03-16 | Multifunctional gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020420 CN2777539Y (en) | 2005-03-16 | 2005-03-16 | Multifunctional gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777539Y true CN2777539Y (en) | 2006-05-03 |
Family
ID=36744923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520020420 Expired - Fee Related CN2777539Y (en) | 2005-03-16 | 2005-03-16 | Multifunctional gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777539Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106791A (en) * | 2016-11-25 | 2018-06-01 | 上汽通用五菱汽车股份有限公司 | A kind of vehicle natural gas special quality determining method of factory indoor |
-
2005
- 2005-03-16 CN CN 200520020420 patent/CN2777539Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106791A (en) * | 2016-11-25 | 2018-06-01 | 上汽通用五菱汽车股份有限公司 | A kind of vehicle natural gas special quality determining method of factory indoor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060503 |