CN203899003U - Household fire prevention and control device - Google Patents
Household fire prevention and control device Download PDFInfo
- Publication number
- CN203899003U CN203899003U CN201420323325.9U CN201420323325U CN203899003U CN 203899003 U CN203899003 U CN 203899003U CN 201420323325 U CN201420323325 U CN 201420323325U CN 203899003 U CN203899003 U CN 203899003U
- Authority
- CN
- China
- Prior art keywords
- circuit
- load triggers
- fuel gas
- control device
- fire prevention
- 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
Landscapes
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a household fire prevention and control device, comprising an AC-DC(alternating current-direct current) conversion circuit, a combustible gas detection circuit, a sound alarm circuit, a first load trigger circuit, a second load trigger circuit, a logical negation circuit, a drive circuit and an LED (light emitting diode) lamp, wherein the signal output end of the combustible gas detection circuit is connected to the input end of the first load trigger circuit, passes through the logical negation circuit and then is connected to another input end of the first load trigger circuit. The output ends of the first load trigger circuit and the second load trigger circuit respectively realize automatic switching of spark-free power supply of a common lamp and the drive circuit, so that accidents of ignition or explosion caused by switch misoperation of a user when combustible gas leaks can be avoided, the safety of fire prevention and control is improved and accident safety illumination can be provided. Meanwhile, the integrated structure is attractive and practical.
Description
Technical field
The utility model relates to domestic safety prevention system field, relates to specifically a kind of household fire prevention and control device.
Background technology
At present, along with the raising day by day of living standards of the people, liquefied petroleum gas is applied among huge numbers of families' life more and more at large.Not only city dweller has, and rural subscribers are also rolling up, and the family even having has several gas cylinders.And along with being open to traffic of national pipeline of transferring natural gas from the west to the east, the condition of improving the people's livelihood has played positive role especially.Natural gas enters the gas for domestic use that family is very easy to city dweller, and it is all to use to obtain natural gas that present city face most users family is cooked.Therefore also every family is all faced with at any time because liquefied gas or natural gas cause poisoning and fire hazard.
Liquefied petroleum gas or natural gas fire occur again and again, lack safe handling, managerial knowledge and lack precautionary measures inseparable with user.If each user can grasp the fire safety knowledge of combustion gas, and safety management and use, and configures Domestic combustible gas alarm, fire is avoidable.Just because of at present a lot of users do not have the fire safety knowledge of combustion gas, cause a lot of examples because manual operation is improper, to cause Leakage Gas or cause the accident of fire.
According to fire safety knowledge, user forbids to open any gas appliance, electric switch (comprising electric light and doorbell etc.) smelling while having liquefied gas or the similar foul smell taste of natural gas, is forbidden at indoor use phone (comprising mobile phone) the inaccurate naked light that uses.But, a lot of users are the elderly and unfamiliar child particularly, even if disposing the occasion of common flammable gas alarm, when on that night, alarm sounds, still can automaticly remove to open lamp switch checks actually, and common lamp switch all will have electric spark when connecting, very easily cause lighting, exploding of gas leakage.
For this reason, need to design a kind of novel fire prevention and control device, avoid occurring when combustible gas leakage because of maloperation this class accident that sets off an explosion.
The content of utility model
The utility model object be to provide a kind of can be when combustible gas leakage being detected, automatically disconnect light fixture Switching Power Supply, in order to avoid the fire prevention and control device setting off an explosion because of maloperation, and can light assisted illuminating lamp in the mode without electric spark, for safety operation provides condition.
The technical solution of the utility model is:
A kind of household fire prevention and control device, comprise ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, it is characterized in that, also comprise the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp, wherein the signal output part of fuel gas testing circuit is connected to the first load triggers circuit input end and after logic NOT circuit, is connected to again the input of the first load triggers circuit simultaneously, the output of the first load triggers circuit respectively with AC power be connected with drive circuit ac input end, the described audible alarm circuit that is parallel with LED lamp on drive circuit DC output end and is formed by resistance and loudspeaker, the output of the second load triggers circuit is connected respectively to AC power and ordinary lamp and lantern.
Described a kind of household fire prevention and control device, it is characterized in that described the first load triggers circuit comprises two inputs and two outputs, between two inputs, be serially connected with photophore and a current-limiting resistance of a bidirectional triode thyristor type optocoupler, the first anode that the two ends of the light-receiving device of described optocoupler are connected to a bidirectional triode thyristor by two different resistance respectively and second plate and wherein one end are also extremely connected with the control of described bidirectional triode thyristor, and the first anode of described bidirectional triode thyristor and second plate two ends are also parallel with a resistance-capacitance absorption loop; Described the second load triggers circuit adopts the structure identical with the first load triggers circuit.
Described a kind of household fire prevention and control device, it is characterized in that described ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp are installed on a circuit board, described circuit board package is in 86 types or 120 type electrician mounting boxs, and on the panel of described electrician's mounting box, have a perforate of being blocked by transparent glass sheet, the light source of described LED lamp is installed over against described perforate.
Described a kind of household fire prevention and control device, is characterized in that described fuel gas testing circuit comprises liquefied gas or sensor of natural gas, and its output signal is level signal.
Described a kind of household fire prevention and control device, is characterized in that described fuel gas testing circuit comprises a fuel gas signal transmission circuit and a fuel gas signal receiving circuit, communicates by wireless signal between them.
Described a kind of household fire prevention and control device, is characterized in that the light source of described LED lamp is comprised of white and red LED lamp pearl.
Operation principle of the present utility model is:
Common flammable gas alarm, only can detect the leakage of fuel gas and cannot intervene the power supply of lamp switch, has therefore caused the accident of being ignited by switch electric spark after a lot of combustible gas leakages.For this reason, a kind of household fire of the utility model prevention and control device, after the leakage that fuel gas detected, by the first load triggers circuit and the second load triggers circuit, carry out the switching of ordinary lamp and lantern and assisted illuminating lamp power supply, now by the second load triggers circuit, cut off the power supply of ordinary lamp and lantern, even if the switch that user is closed be connected with ordinary lamp and lantern can not cause electric spark yet, simultaneously, by the first load triggers circuit, connect the power supply of assisted illuminating lamp, so that the fail-safe illumination of leaking area to be provided.
In described power switching process, employing be the soft handoff of bidirectional thyristor, therefore, the electric spark that handoff procedure has avoided mechanical switch to cause.Described the first load triggers circuit comprises two inputs and two outputs, between two inputs, be serially connected with the photophore of a bidirectional triode thyristor type optocoupler and a current-limiting resistance and described two inputs and be connected respectively to the signal output part of fuel gas testing circuit and the ground end that ac-dc converter circuit output direct current electric is pressed, when detecting combustible gas leakage, exports fuel gas testing circuit high level signal, make the photophore of bidirectional triode thyristor type optocoupler luminous, thereby make the two ends conducting of its light-receiving device, and the first anode that the two ends of the light-receiving device of described optocoupler are connected to a bidirectional triode thyristor by two different resistance respectively and second plate and wherein one end are also extremely connected with the control of described bidirectional triode thyristor, therefore, bidirectional triode thyristor conducting due to the pressure reduction between anode and the control utmost point when the conducting of light-receiving device two ends, i.e. conducting between two of the first load triggers circuit outputs when fuel gas testing circuit detects combustible gas leakage, and two outputs of the first load triggers circuit are connected respectively to AC power and drive circuit ac input end, thereby, drive circuit obtains electric work, on its DC output end, be parallel with as the LED lamp of assisted illuminating lamp and the audible alarm circuit being formed by resistance and loudspeaker, now, LED lamp is lit, and loudspeaker sounds the alarm.In addition, the first anode of described bidirectional triode thyristor and second plate two ends are also parallel with a resistance-capacitance absorption loop being connected into by resistance capacitance, prevent moment overvoltage and may cause silicon controlled is misleaded or damaged.
Described the second load triggers circuit adopts the structure identical with the first load triggers circuit, the output signal output of fuel gas testing circuit is connected to again the input of the first load triggers circuit simultaneously after logic NOT circuit, the output of the second load triggers circuit is connected respectively to AC power and ordinary lamp and lantern, therefore, when fuel gas testing circuit detects combustible gas leakage, the not conducting of photophore of bidirectional triode thyristor type optocoupler in the second load triggers circuit, thereby ordinary lamp and lantern is disconnected from AC power, even if now user misoperation is closed should the switch of light fixture, can not cause electric spark yet.
When without combustible gas leakage, in the duty of fuel gas testing circuit, above-mentioned situation is contrary, now, assisted illuminating lamp is that the not luminous and audible alarm circuit of LED lamp is not worked, simultaneously, in ordinary lamp and lantern and AC power, connect, now user can normally be closed or be disconnected ordinary lamp and lantern power supply by switch.
Described fuel gas testing circuit comprises liquefied gas or sensor of natural gas, is applicable to respectively use the occasion of liquefied gas or natural gas, also can select other combustible gas leakage detecting sensors for environmental quality.For convenient, install, fuel gas testing circuit can also be divided into two parts, wherein the part with sensor transmits detected state by signal transmission circuit to signal receiving circuit, between them, by wireless signal, communicate, thereby sensing and control section can be installed separately, make the part of belt sensor can more approach the air feed point of fuel gas, improve detection sensitivity, increase security.
The light source of described LED lamp is formed by connecting by the connection in series-parallel of LED lamp pearl, and wherein LED lamp pearl comprises again white and red LED lamp pearl, and white LED lamp pearly-lustre effect is high, can improve efficiency, and the red LED lamp pearl adding can play watchful prompting.
For convenience of installing, a kind of household fire of the utility model prevention and control device can be made as to integral structure, described ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp are all arranged on a circuit board, described circuit board package is in 86 types or 120 type electrician mounting boxs, and on the panel of described electrician's mounting box, have a perforate of being blocked by transparent glass sheet, the light source of described LED lamp is installed over against described perforate.
The utility model has the advantages that:
1, a kind of household fire of the utility model prevention and control device has disconnected the power supply of switch after combustible gas leakage being detected, thereby has avoided electric spark to the igniting or ignite of fuel gas, and has improved the safety of fire prevention and control;
2, a kind of household fire of the utility model prevention and control device adopts integral structure, and fail-safe illumination can be automatically provided after combustible gas leakage being detected, both beautiful and practical.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is composition structural representation of the present utility model;
Fig. 2 is load triggers circuit theory diagrams of the present utility model;
Fig. 3 is fuel gas testing circuit structure and connection diagram of the present utility model;
Fig. 4 is contour structures schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of household fire of the utility model prevention and control device, comprise the galvanic ac-dc converter circuit of output, the fuel gas testing circuit of outputs level signals, audible alarm circuit, also comprise logic NOT circuit G1, drive circuit, LED lamp and the first load triggers circuit, the load triggers circuit that two structures of the second load triggers circuit are identical.Ac-dc converter circuit is converted to direct current by alternating current, and its output is respectively VCC DC power supply terminal and GND and holds.The output signal output of fuel gas testing circuit is connected to the first load triggers circuit input end and after logic NOT circuit G1, is connected to again the input of the first load triggers circuit simultaneously, the output of the first load triggers circuit respectively with AC power be connected with drive circuit ac input end, the described audible alarm circuit that is parallel with LED lamp between drive circuit DC output end D+ and D-two ends and is comprised of resistance and loudspeaker, drive circuit is also that alternating current is converted to and is applicable to the needed direct current of its back loading.
What the first load triggers circuit and the second load triggers circuit all adopted is load triggers circuit as shown in Figure 2.Referring to Fig. 2, load triggers circuit comprises two input J1, J2 and two output J3, J4, between two input J1 and J2, be serially connected with photophore and a current-limiting resistance R1 of a bidirectional triode thyristor type optocoupler U1, the two ends of the light-receiving device of described optocoupler are respectively by two different resistance R 3, the first anode that R2 is connected to a bidirectional triode thyristor T1 and second plate and wherein one end are also extremely connected with the control of described bidirectional triode thyristor T1, the first anode of described bidirectional triode thyristor and second plate two ends are also parallel with a resistance-capacitance absorption loop being in series by resistance R 4 and capacitor C 1.
Referring to Fig. 1 and Fig. 2, the second load triggers circuit comprises two input J21, J22 and two output J23, J24, wherein the live wire L of J23 and external ac power source AC end is connected, and the zero line N that J24 is connected to AC power AC after by ordinary lamp and lantern LAMP and K switch holds.When normal fuel gas testing circuit output low level during without combustible gas leakage, after logic NOT circuit G1 is anti-phase, light the photophore between J21, two inputs of J22 and make the light-receiving device conducting of bidirectional triode thyristor type optocoupler, thereby make the bidirectional triode thyristor conducting in the second load triggers circuit, the live wire L end of AC power AC is connected by J23, two outputs of J24 and ordinary lamp and lantern LAMP, the control that K switch can normally be opened and close ordinary lamp and lantern LAMP.Fuel gas testing circuit output high level when combustible gas leakage, light the first load triggers circuit J1, photophore between two inputs of J2 and make the light-receiving device conducting of bidirectional triode thyristor type optocoupler, thereby make the bidirectional triode thyristor conducting in the first load triggers circuit, the live wire L end of AC power AC passes through J3, two outputs of J4 and drive circuit ac input end are connected, drive circuit obtains electric work, LED lamp on its DC output end is lit, fail-safe illumination is provided, by resistance R 11 and the audible alarm circuit that loudspeaker A1 forms, given the alarm simultaneously.
Fuel gas testing circuit can centralized arrangement also can be divided into sensing detection and control two parts.As shown in Figure 3, fuel gas testing circuit is divided into two parts, wherein the part with sensor transmits detected state by fuel gas signal transmission circuit to fuel gas signal receiving circuit, between them, by wireless signal, communicate, thereby sensing and control section can be installed separately, make the part of belt sensor can more approach the air feed point of fuel gas.Other parts of Fig. 3 are identical with Fig. 1.
As shown in Figure 4, when a kind of household fire of the utility model prevention and control device is made as to integral structure, by described ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp are all arranged on a circuit board, described circuit board package is in 86 types or 120 type electrician mounting boxs, and on the panel 11 of described electrician's mounting box, there is a perforate of being blocked by transparent glass sheet 12, the light source of described LED lamp 13 is that LED lamp pearl is installed over against described perforate, switch 11 adopts and sticks up Ban Shi or key switch, panel 11 has aperture group 14 on the position that loudspeaker is corresponding in audible alarm circuit.
The foregoing is only preferred embodiment of the present utility model; detailed description to this household fire prevention and control device is illustrative rather than determinate; therefore in the variation and the modification that do not depart under the utility model general plotting, should belong to protection domain of the present utility model.
Claims (6)
1. a household fire prevention and control device, comprise ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, it is characterized in that, also comprise the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp, wherein the signal output part of fuel gas testing circuit is connected to the first load triggers circuit input end and after logic NOT circuit, is connected to again the input of the first load triggers circuit simultaneously, the output of the first load triggers circuit respectively with AC power be connected with drive circuit ac input end, the described audible alarm circuit that is parallel with LED lamp on drive circuit DC output end and is formed by resistance and loudspeaker, the output of the second load triggers circuit is connected respectively to AC power and ordinary lamp and lantern.
2. a kind of household fire prevention and control device according to claim 1, it is characterized in that described the first load triggers circuit comprises two inputs and two outputs, between two inputs, be serially connected with photophore and a current-limiting resistance of a bidirectional triode thyristor type optocoupler, the first anode that the two ends of the light-receiving device of described optocoupler are connected to a bidirectional triode thyristor by two different resistance respectively and second plate and wherein one end are also extremely connected with the control of described bidirectional triode thyristor, the first anode of described bidirectional triode thyristor and second plate two ends are also parallel with a resistance-capacitance absorption loop, described the second load triggers circuit adopts the structure identical with the first load triggers circuit.
3. a kind of household fire prevention and control device according to claim 1, it is characterized in that described ac-dc converter circuit, fuel gas testing circuit, audible alarm circuit, the first load triggers circuit, the second load triggers circuit, logic NOT circuit, drive circuit and LED lamp are installed on a circuit board, described circuit board package is in 86 types or 120 type electrician mounting boxs, and on the panel of described electrician's mounting box, have a perforate of being blocked by transparent glass sheet, the light source of described LED lamp is installed over against described perforate.
4. a kind of household fire prevention and control device according to claim 1, is characterized in that described fuel gas testing circuit comprises liquefied gas or sensor of natural gas, and its output signal is level signal.
5. a kind of household fire prevention and control device according to claim 1, is characterized in that described fuel gas testing circuit comprises a fuel gas signal transmission circuit and a fuel gas signal receiving circuit, communicates by wireless signal between them.
6. a kind of household fire prevention and control device according to claim 1, is characterized in that the light source of described LED lamp is comprised of white and red LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323325.9U CN203899003U (en) | 2014-06-12 | 2014-06-12 | Household fire prevention and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323325.9U CN203899003U (en) | 2014-06-12 | 2014-06-12 | Household fire prevention and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203899003U true CN203899003U (en) | 2014-10-29 |
Family
ID=51773297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323325.9U Expired - Fee Related CN203899003U (en) | 2014-06-12 | 2014-06-12 | Household fire prevention and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203899003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373149A (en) * | 2015-12-11 | 2016-03-02 | 成都翰道科技有限公司 | Two-level band-pass filtering and amplifying circuit-based intelligent aerator control system |
-
2014
- 2014-06-12 CN CN201420323325.9U patent/CN203899003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373149A (en) * | 2015-12-11 | 2016-03-02 | 成都翰道科技有限公司 | Two-level band-pass filtering and amplifying circuit-based intelligent aerator control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105513258A (en) | Intelligent security lighting device | |
| CN203899003U (en) | Household fire prevention and control device | |
| CN202523926U (en) | Socket with sound-control LED lamp | |
| CN206181460U (en) | Intelligent desk lamp based on single -chip microcomputer | |
| CN104582200A (en) | Intelligent control lamp integrated with lighting and emergency lighting | |
| CN201992539U (en) | Intelligent gas alarm mine lamp | |
| CN204291506U (en) | A kind of illuminating lamp energy-saving control device | |
| CN203563248U (en) | Control circuit for lighting-emergency dual-purpose sensor light | |
| CN100505473C (en) | Solar energy lighting emergency system | |
| CN202663597U (en) | Intelligent tunnel lamp illumination system | |
| CN204350410U (en) | The integrated lamp of collection illumination and emergency lighting | |
| CN206055705U (en) | A kind of methane cooker for being capable of automatic ignition | |
| CN208997007U (en) | A kind of fan detection system | |
| CN203363941U (en) | LED (light-emitting diode) intelligent emergency fluorescent lamp | |
| CN206920578U (en) | A kind of LED charactrons detection means | |
| CN202799332U (en) | Emergency induction LED lamp | |
| CN206894975U (en) | Intelligent lighting system | |
| CN202711987U (en) | Switch with key ring | |
| CN105375212A (en) | Socket capable of automatically powering off | |
| CN207589226U (en) | A kind of lighting circuit of subregion control | |
| CN206835424U (en) | A kind of intelligent light control system | |
| CN206061241U (en) | A kind of acousto-optic senses lamp | |
| CN202918568U (en) | An energy-saving self-powered-off electric lamp control device | |
| CN205354260U (en) | Intelligent security lighting device | |
| CN103335240A (en) | Table lamp with gas alarm |
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: 20141029 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |