CN200941543Y - Monitoring detector for electrical fire disaster - Google Patents
Monitoring detector for electrical fire disaster Download PDFInfo
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- CN200941543Y CN200941543Y CN 200620127543 CN200620127543U CN200941543Y CN 200941543 Y CN200941543 Y CN 200941543Y CN 200620127543 CN200620127543 CN 200620127543 CN 200620127543 U CN200620127543 U CN 200620127543U CN 200941543 Y CN200941543 Y CN 200941543Y
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Abstract
The utility model relates an electronic monitor and control device, in particular to an electrical fire monitoring detector, which solves the problem that existing electrical fire alarm isn't used with existing relevant products (for example fire protection product as fire alarm controller etc) through internet, comprising a function keyboard, an indication lamp and a box body displayed by digitron. The box body is provided with a current transformer, a breaker and a control circuit which connects the control input end of the breaker with the output end of the current transformer. The utility model applies data transmission interface circuit which is connected to the fire protection monitoring device through internet, structure is simple, and application is convenient. When abnormal case is happed, such as creepage, short circuit and overload etc, the utility model gives an alarm to the monitoring center at the same time that the power supply is switched off, purpose of eliminating electrical fire hidden trouble is finally achieved, and happening of electric fire is prevented and reduced.
Description
Technical field
The utility model relates to a kind of electronic monitoring equipment, specifically is a kind of detector for electric fire protection that pre-electrical fire prevention takes place that is used for.
Background technology
Along with the raising of development and national economy and people's living standard, skyscraper, place of public amusement get more and more.Because building itself and the inner combustible that exists, particularly the combustible material and the ever-increasing power consumption equipment of use in the finishing increase the generation probability of building electric fire greatly, and the people's the person and property safety caused very big threat.The fire statistics report in our province in January, 2006 to March shows, be total to 1145 of breaking out of fires in 3 months, electrical fire just accounts for 30%, it should be noted that especially the fire that is caused by factors such as electric leakages just accounts for 70% of electrical fire, therefore effectively control electrical fire, particularly effectively control is the current firemanic most important thing by the fire that factors such as electric leakage, short circuit, overload cause.Existing electric fire alarm device with before electrical fire takes place (being the building electric fault formation stage) send alarm signal, take measures to be purpose, for effectively controlling electrical fire solution has been proposed, from its structure, comprise current transformer and circuit breaker, and the control circuit that links to each other with the output of the control input end of circuit breaker and current transformer.The course of work that it is total: control circuit changes via the electric current of current transformer monitoring with electric line, thereby determine whether there are faults such as the electric leakage that can cause electrical fire, short circuit, overload with electric line, as existing, control circuit promptly sends control signal control circuit breaker and disconnects, make the electricity consumption line broken circuit that has electric fault, and send alarm signal and remind the staff to check, electric disaster hidden-trouble is eliminated in bud the most at last.But existing electric fire alarm device can only use separately as stand-alone product, can't to a certain degree, limit further prevention and control to electrical fire with Related product fire products such as (as:) fire alarm control units networking use.Thereby can't fundamentally stop electrical fire.
Summary of the invention
The utility model for solve existing electrical fire detector can not with Related product fire products such as (as:) the fire alarm control units problem that networking is used, a kind of electrical fire prosecution detector is provided.And be purpose only with the hardware configuration that this controller is provided.
The utility model is to adopt following technical scheme to realize: a kind of detector for electric fire protection, comprise and which is provided with function keyboard, the box body that indicator light and charactron show, be packaged with current transformer in the box body, circuit breaker, and the control circuit that links to each other with the signal output part of the control input end of circuit breaker and current transformer, described control circuit comprises the current rectifying and wave filtering circuit IC1 that links to each other with the signal output part of current transformer, be connected in the single-chip microcomputer IC2 of current rectifying and wave filtering circuit IC1 output, and the keyboard and the display control circuit IC3 that are connected in single-chip microcomputer IC2 output, warning circuit IC4, circuit breaker control circuit IC5, the output of single-chip microcomputer IC2 also are connected with and are used for the data transmission interface IC circuit 6 of networking with external equipment.During use, concrete install consistently with existing electric fire alarm device, different is can be by the data transmission interface circuit through bus and existing Related product fire products such as (as:) fire alarm control units networking use; The current transformer monitoring changes with the electric current of electric line, and current changing signal inputed to single-chip microcomputer IC2 behind current rectifying and wave filtering circuit IC1 rectifying and wave-filtering, under related software is supported, single-chip microcomputer IC2 judges (promptly whether have the electric leakage that can cause electrical fire with electric line, short circuit, faults such as overload), as there is an above-mentioned fault, the control signal of promptly sending single-chip microcomputer IC2 triggers circuit breaker control circuit IC5 control circuit breaker and disconnects, simultaneously send control signal similar fire product is carried out trigger action, finally the building that uses detector for electric fire protection described in the utility model is carried out effective electrical fire prevention via data transmission interface IC circuit 6.Compared with prior art, the utility model adopts the data transmission interface IC circuit 6 that can network with outside fire fighting monitoring equipment, not only can use with existing Related product fire products such as (as:) fire alarm control units networking, also can form managerial grid with Surveillance center, by bus at Surveillance center's very first time display alarm signal, accurately and timely show the when and where that fault takes place, the caution staff in time fixes a breakdown, and further realizes the prevention to electrical fire.The current rectifying and wave filtering circuit of described formation control circuit, keyboard and display control circuit, warning circuit, circuit breaker control circuit, data transmission interface circuit are existing known technologies, be that those skilled in the art are easy to realize and multiple circuit structure modification can easily be arranged that therefore the particular circuit configurations to the control circuit each several part does not elaborate in summary of the invention.But in Figure of description, provided a kind of physical circuit schematic diagram of control circuit.
The utility model adopts the data transmission interface circuit that can network with outside fire fighting monitoring equipment, simple in structure, easy to use, find abnormal conditions such as electric leakage, short circuit, overload in time, and when resolutely cutting off the electricity supply, report to the police to Surveillance center, finally reach the purpose of eliminating electric disaster hidden-trouble, prevent and reduced the generation of electrical fire.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a control circuit block diagram of the present utility model;
Fig. 3 is a kind of concrete control circuit schematic diagram of the present utility model; Link to each other with label among the figure
Among the figure: the 1-circuit breaker; 2-current transformer: 3-control circuit.
Embodiment
A kind of detector for electric fire protection, comprise and which is provided with function keyboard, the box body that indicator light and charactron show, be packaged with current transformer 2 in the box body, circuit breaker 1, and the control circuit 3 that links to each other with the signal output part of the control input end of circuit breaker 1 and current transformer 2, described control circuit 3 comprises the current rectifying and wave filtering circuit IC1 that links to each other with the signal output part of current transformer, be connected in the single-chip microcomputer IC2 of current rectifying and wave filtering circuit IC1 output, and the keyboard and the display control circuit IC3 that are connected in single-chip microcomputer IC2 output, warning circuit IC4, circuit breaker control circuit IC5, the output of single-chip microcomputer IC2 also are connected with and are used for the data transmission interface IC circuit 6 of networking with external equipment.Described data transmission interface IC circuit 6 adopts serial data to transmit 485 circuit, it is existing conventional data transmission interface circuit that described serial data transmits 485 circuit, therefore, detector for electric fire protection described in the utility model can be connected with the fire alarm control unit of existing each manufacturer production, realize fire fighting monitoring prevention networking.
During concrete enforcement, be accuracy and the reliability of guaranteeing signal, described current transformer 2 adopts 0.1 grade of zero-sequence transformer of high accuracy; Current rectifying and wave filtering circuit IC1 has adopted the halfwave rectifier filter circuit, and the rectifying and wave-filtering amplifying circuit that adopts LM358 type amplifier; Described single-chip microcomputer IC2 adopts ATMEGA8L type singlechip chip, and ATMEGA8L type singlechip chip is existing known products, carries the A/D translation function; Described keyboard and display control circuit IC3 have adopted key scanning circuit and display circuit routinely, and key scanning circuit and display circuit are existing known technologies routinely, and those skilled in the art are easy to realize and multiple circuit structure modification can easily be arranged; Described warning circuit IC4 adopts LM386 type power amplifier, to drive the loud speaker sounding; Described circuit breaker control circuit IC5 comprises the photoelectric isolated chip U6 that links to each other with single-chip microcomputer IC2 output, the output of photoelectric isolated chip U6 links to each other with the base stage of triode Q5, the collector electrode of triode Q5 is connected with relay K, and the normally opened contact K1 of relay K is serially connected with the current supply circuit of circuit breaker 1; Described photoelectric isolated chip has adopted 521-4 type photoelectric isolated chip.521-4 type photoelectric isolated chip has many group photoelectrical couplers, therefore, single-chip microcomputer IC2 can come the linkage function circuit by 521-4 type photoelectric isolated chip, to realize functions such as self check, early warning output, the circuit structure of realizing above-mentioned functions is that those skilled in the art are easy to realize and multiple circuit structure modification can easily be arranged; In addition, the output of single-chip microcomputer IC2 is connected with storage chip IC7, and described storage chip IC7 adopts the eeprom memory of AT24C256 model, inquiry after the storage of fault alarm record can being convenient to.
During concrete the use, the current transformer 2 monitorings electric current situation of change of electric line, and electric current changed be converted into the signal of telecommunication and transfer to current rectifying and wave filtering circuit in the control circuit, the 23-26 pin that transfers to the A/D module correspondence of single chip computer AT MEGA8L behind rectifying and wave-filtering carries out analog-to-digital conversion, single chip computer AT MEGA8L is via the 5th pin simultaneously, the 6th pin, the 11-13 pin carries out signals collecting to keyboard and display control circuit, under the support of related software, the ATMEGA8L single-chip microcomputer carries out true and false affirmation to the signal that collects, and signal data carried out specific formula algorithm computation, make at last accurately and judging, via the 15-19 pin, the 9th, 10 pins output control signal, trigger the work of warning circuit and circuit breaker control circuit, drive the circuit breaker action.Meanwhile, the ATMEGA8L single-chip microcomputer sends communication signal by its 2nd pin, transfer to serial data and transmit 485 circuit input ends, transmit the output of 485 circuit output ends via serial data, by transfer bus the most at last communication signal transfer to and the Related product of the utility model networking fire products such as (as:) fire alarm control units, realize the interlock function.
In order to improve the service quality of detector for electric fire protection described in the utility model, also having the people is the function that adds electric current check current transformer quality; And can be under related software is supported, fault allowed band (as: leakage current overflow scope) is set, in allowed band, send the sound and light alarm signal, but circuit breaker is failure to actuate (promptly not tripping), and described fault allowed band can be regulated the purpose that realization is controlled flexibly.
In a word, the utility model can link with relevant or similar fire protection equipment, fire protection warning controller, monitor the situation of circuit electricity consumption everywhere at total Control Room, can show time, the place that fault alarm takes place by the fire protection warning controller, in time fix a breakdown, guarantee electrical safety, reliability.
Claims (10)
1, a kind of detector for electric fire protection, comprise and which is provided with function keyboard, the box body that indicator light and charactron show, be packaged with current transformer (2) in the box body, circuit breaker (1), and the control circuit (3) that links to each other with the signal output part of the control input end of circuit breaker (1) and current transformer (2), described control circuit (3) comprises the current rectifying and wave filtering circuit IC1 that links to each other with the signal output part of current transformer, be connected in the single-chip microcomputer IC2 of current rectifying and wave filtering circuit IC1 output, and the keyboard and the display control circuit IC3 that are connected in single-chip microcomputer IC2 output, warning circuit IC4, circuit breaker control circuit IC5, the output that it is characterized in that single-chip microcomputer IC2 also are connected with and are used for the data transmission interface IC circuit 6 of networking with external equipment.
2, detector for electric fire protection according to claim 2 is characterized in that described data transmission interface IC circuit 6 adopts serial data to transmit 485 circuit.
3, detector for electric fire protection according to claim 1 and 2 is characterized in that described single-chip microcomputer IC2 adopts ATMEGA8L type singlechip chip.
4, detector for electric fire protection according to claim 1 and 2 is characterized in that the output of single-chip microcomputer IC2 is connected with storage chip IC7, and described storage chip IC7 adopts the eeprom memory of AT24C256 model.
5, detector for electric fire protection according to claim 3 is characterized in that the output of single-chip microcomputer IC2 is connected with storage chip IC7, and described storage chip IC7 adopts the eeprom memory of AT24C256 model.
6,, it is characterized in that described warning circuit IC4 adopts LM386 type power amplifier according to claim 1 or 2 or 5 described detector for electric fire protection.
7, detector for electric fire protection according to claim 4 is characterized in that described warning circuit IC4 adopts LM386 type power amplifier.
8, according to claim 1 or 2 or 5 or 7 described detector for electric fire protection, it is characterized in that described circuit breaker control circuit IC5 comprises the photoelectric isolated chip U6 that links to each other with single-chip microcomputer IC2 output, the output of photoelectric isolated chip U6 links to each other with the base stage of triode Q5, the collector electrode of triode Q5 is connected with relay K, and the normally opened contact K1 of relay K is serially connected with the current supply circuit of circuit breaker (1); Described photoelectric isolated chip has adopted 521-4 type photoelectric isolated chip.
9, detector for electric fire protection according to claim 6, it is characterized in that described circuit breaker control circuit IC5 comprises the photoelectric isolated chip U6 that links to each other with single-chip microcomputer IC2 output, the output of photoelectric isolated chip U6 links to each other with the base stage of triode Q5, the collector electrode of triode Q5 is connected with relay K, and the normally opened contact K1 of relay K is serially connected with the current supply circuit of circuit breaker (1); Described photoelectric isolated chip has adopted 521-4 type photoelectric isolated chip.
10, detector for electric fire protection according to claim 3, it is characterized in that described circuit breaker control circuit IC5 comprises the photoelectric isolated chip U6 that links to each other with single-chip microcomputer IC2 output, the output of photoelectric isolated chip U6 links to each other with the base stage of triode Q5, the collector electrode of triode Q5 is connected with relay K, and the normally opened contact K1 of relay K is serially connected with the current supply circuit of circuit breaker (1); Described photoelectric isolated chip has adopted 521-4 type photoelectric isolated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127543 CN200941543Y (en) | 2006-08-30 | 2006-08-30 | Monitoring detector for electrical fire disaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127543 CN200941543Y (en) | 2006-08-30 | 2006-08-30 | Monitoring detector for electrical fire disaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941543Y true CN200941543Y (en) | 2007-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620127543 Expired - Fee Related CN200941543Y (en) | 2006-08-30 | 2006-08-30 | Monitoring detector for electrical fire disaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941543Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354427A (en) * | 2011-09-27 | 2012-02-15 | 赵怀军 | method and device for flexibly identifying residual current-type electrical fire on line |
| CN102426747A (en) * | 2011-08-18 | 2012-04-25 | 浙江寺崎电气有限公司 | Residual current type electrical fire monitoring and detecting device |
| CN102684138A (en) * | 2012-05-15 | 2012-09-19 | 董右云 | Method and device for detecting and processing firing phenomenon of power line |
| CN104835281A (en) * | 2015-05-29 | 2015-08-12 | 张释文 | Electric leakage fire monitoring device |
| CN105303752A (en) * | 2015-11-03 | 2016-02-03 | 河南瑞远物联网科技有限公司 | Electrical fire monitoring and early warning system based on point type temperature sensing elements |
-
2006
- 2006-08-30 CN CN 200620127543 patent/CN200941543Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426747A (en) * | 2011-08-18 | 2012-04-25 | 浙江寺崎电气有限公司 | Residual current type electrical fire monitoring and detecting device |
| CN102426747B (en) * | 2011-08-18 | 2014-08-20 | 浙江寺崎电气有限公司 | Residual current type electrical fire monitoring and detecting device |
| CN102354427A (en) * | 2011-09-27 | 2012-02-15 | 赵怀军 | method and device for flexibly identifying residual current-type electrical fire on line |
| CN102354427B (en) * | 2011-09-27 | 2013-05-01 | 赵怀军 | method and device for flexibly identifying residual current-type electrical fire on line |
| CN102684138A (en) * | 2012-05-15 | 2012-09-19 | 董右云 | Method and device for detecting and processing firing phenomenon of power line |
| CN104835281A (en) * | 2015-05-29 | 2015-08-12 | 张释文 | Electric leakage fire monitoring device |
| CN105303752A (en) * | 2015-11-03 | 2016-02-03 | 河南瑞远物联网科技有限公司 | Electrical fire monitoring and early warning system based on point type temperature sensing elements |
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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: 20070829 Termination date: 20110830 |