CN202084134U - Electrical fire monitor - Google Patents
Electrical fire monitor Download PDFInfo
- Publication number
- CN202084134U CN202084134U CN2011201906689U CN201120190668U CN202084134U CN 202084134 U CN202084134 U CN 202084134U CN 2011201906689 U CN2011201906689 U CN 2011201906689U CN 201120190668 U CN201120190668 U CN 201120190668U CN 202084134 U CN202084134 U CN 202084134U
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- circuit
- circuit board
- power supply
- electrical fire
- fire monitor
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Abstract
The utility model discloses an electrical fire monitor, which comprises a back casing and a face cover, wherein the bottom of the back casing is provided with an input/output circuit board, the middle part of the back casing is provided with a power supply circuit board, the face cover is provided with a CPU main circuit board, the CPU main circuit board is in circuit connection with the input/output circuit board and the power supply circuit board via pins or sockets on respective circuit boards, the back casing and the face cover are in integrated connection via self tapping screws, and the input/output circuit board and the power supply circuit board are arranged in the back casing in a layered manner and are in circuit connection with the CPU main circuit board via connectors respectively. The electrical fire monitor can collect correlation parameters of an electrical fire, and carries out integrated operation to parameters after carrying out filtering and anti-interference processing to the correlation parameters, thereby analyzing and obtaining the occurrence possibility of a fire alarm. When the occurrence possibility of the fire alarm reaches a certain degree, the electrical fire monitor sends out a fire early warning signal. When the occurrence possibility of the fire alarm is determined to be extremely high, the electrical fire monitor sends out a fire alarm signal, and determines whether to output a breaker tripping signal according to demands.
Description
Technical field
The utility model relates to electronic monitoring and panalarm field, is specifically related to a kind of electrical fire monitor that is used to prevent the electrical fire generation.
Background technology
Along with improving constantly of fast development of national economy and living standards of the people, social power consumption greatly increases.The consumption of various electrical equipments and household electrical appliance increases suddenly, and the electrical fire accident also increases severely thereupon.Over nearly 10 years, the electrical fire number of times takes place and accounts for 30% of fire failure sum in China, and height ranks first, in the current major casualty source that has become in the domestic various fire.Electrical fire accident proportion increases year by year, and the person that distribution system causes gets an electric shock and the system failure, and very major part is because the leakage current of equipment and circuit causes greatly.When leakage current is serious, can burn electrical equipment or circuit, cause fire.In the face of severe further electrical fire situation, electrical fire monitor is born therefrom.Electrical fire monitor is the leakage current that is used for the watch-keeping distribution system, and can realize supervision and control to electrical equipment simultaneously, is the equipment that electric leakage monitors, pre-electrical fire prevention provides solution.
Existing electrical fire monitor has following defective: 1) the fire alarm distinguishing rule only is individual event parameters such as " residual current " that collect, " temperature ", even or collection multiple parameters, also relatively differentiate respectively for parameters, lack comprehensive, rationality and confidence level, false alarm happens occasionally; 2) acquired signal is analog quantity and directly transmits, and the signal transmission is unstable, unreliable; 3) the on-the-spot setting of alarm parameters maybe can not be provided with, and needs the production debugging operation irregularity of on-the-spot setting loaded down with trivial details, takes time and effort, and the product that type can not be set uses dirigibility not enough, is difficult to meet consumers' demand.
The utility model content
Above-mentioned shortcoming at existing electrical fire monitor, the applicant improves through research, and another kind of electrical fire monitor is provided, and can gather the electrical fire correlation parameter, after correlation parameter being carried out filtering anti-interference processing, each parameter is carried out comprehensive operational analysis draw the fire alarm possibility occurrence.When the fire alarm possibility occurrence acquires a certain degree, send the fire alarm signal.When differentiation fire alarm possibility occurrence is high, send fire alarm signal, and whether decision exports the circuit breaker tripping signal as required.
The technical solution of the utility model is as follows:
A kind of electrical fire monitor comprises shell on the back and cover, and the bottom of described shell on the back is equipped with the imput output circuit plate, and the middle part of described shell on the back is equipped with power supply circuit board; Be equipped with the CPU main circuit board on the described cover; Carrying out circuit by contact pin on the circuit board separately or socket between described CPU main circuit board and described imput output circuit plate and the power supply circuit board is connected; Integrate by self-tapping screw between described drain pan and the cover and be connected.
Its further technical scheme is:
Described CPU main circuit board comprises CPU treatment circuit and peripheral interface circuit, and described peripheral interface circuit is by drive circuit of indicator, button treatment circuit, alarm sound circuit, liquid crystal display circuit, 485 communicating circuits, form with the signal connecting circuit of described imput output circuit plate and power supply circuit board.
Described imput output circuit plate is made up of phase voltage Acquisition Circuit, controlling output circuit and external cabling terminal.
Described power supply circuit board is made up of phase current Acquisition Circuit, mu balanced circuit and external cabling terminal.
Useful technique effect of the present utility model is:
One, the utility model is gathered the four kinds of key parameters in detected loop " residual current, temperature, line current, line voltage ", and adopt CHR flexible strategy method of ascertainment that the flexible strategy of every parameter are confirmed, by the flexible strategy of confirming each parameter is carried out comprehensive computing then, with this fire alarm possibility occurrence is differentiated, strengthen the comprehensive and confidence level that electrical fire is surveyed, reduced the possibility of fire alarm wrong report.
Two, adopt the digital communication mode to carry out the parameter transmission between the utility model product and the detector, strengthened stability of data transmission, reliability.
Three, the utility model product can be on-the-spot by menu set alarm parameters, also can by communication bus by the monitoring host computer of Surveillance center concentrate, batch setting, need not the user and be in the action each control point is carried out the parameter editor.It is convenient, flexible, time saving and energy saving to revise.
Description of drawings
For the technical scheme among clearer explanation the utility model embodiment, below employed accompanying drawing among the embodiment is done simple the introduction.These accompanying drawings constitute the application's a part, do not constitute qualification of the present utility model.
Fig. 1 (a) ~ (d) is the structural drawing of the utility model watch-dog.Wherein Fig. 1 (a) is a front view, and Fig. 1 (b) is a rear view, and Fig. 1 (c) is a right view, and Fig. 1 (d) is a vertical view.
Fig. 2 is an electric functional-block diagram of the present utility model, schematically gives expression to hardware capability module of the present utility model.
Fig. 3 is the circuit diagram of the utility model CPU main circuit board.
Fig. 4 is the circuit diagram of the utility model imput output circuit plate.
Fig. 5 is the circuit diagram of the utility model power supply circuit board.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is comprehensively described, obviously, described embodiment only is part embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises shell on the back 3 and cover 2, integrates by self-tapping screw between shell on the back 3 and the cover 2 to be connected.The bottom of shell on the back 3 is equipped with imput output circuit plate 5, and the middle part of shell on the back 3 is equipped with power supply circuit board 6; Be equipped with CPU main circuit board 8 on the cover 2; Carrying out circuit by contact pin on the circuit board separately or socket between CPU main circuit board 8 and imput output circuit plate 5 and the power supply circuit board 6 is connected.The layering in shell on the back of described imput output circuit plate and power supply circuit board is installed, and carries out circuit by connector with described CPU main circuit board separately and be connected.The bottom that connection terminal on described imput output circuit plate 5 and the power supply circuit board 6 exposes described drain pan 3, described connection terminal comprises: " power supply input ", " with watch-dog communication output ", " phase current signal input ", " phase voltage signal input ", " detector power supply and communication signal output ", " output of reporting to the police ", " output of threading off " reach signal terminal such as " feedbacks of threading off ".This watch-dog is installed does not need screw to fix, and after the installation of whole watch-dog is exactly the perforate of cabinet face, watch-dog integral body is inserted from cabinet face tapping, loads onto buckle 7 behind the door from cabinet again and fixes watch-dog.
Fig. 2 is an electric functional-block diagram of the present utility model.As shown in Figure 2, the utility model (watch-dog) is connected by 485 buses with detector, is made up of CPU main circuit board, imput output circuit plate, power supply circuit board.The CPU main circuit board comprises CPU CPU (central processing unit) and peripheral interface circuit, and peripheral interface circuit is by indicator light circuit, button treatment circuit, alarm sound circuit, liquid crystal display circuit, 485 communication modules, form with other two circuit board signal connecting circuit etc.The imput output circuit plate is made up of phase voltage Acquisition Circuit, warning/dropout controlling output circuit and external cabling terminal.Power supply circuit board is made up of phase current Acquisition Circuit, mu balanced circuit and external cabling terminal.
The utility model is gathered relevant four parameters of electrical fire by said structure and circuit: residual current, temperature, phase current, phase voltage.After correlation parameter being carried out filtering anti-interference processing, according to the parameter flexible strategy that CHR flexible strategy method of ascertainment is confirmed each parameter is carried out comprehensive computing, draw the fire alarm possibility occurrence thereby analyze.When the fire alarm possibility occurrence acquires a certain degree, send the fire alarm signal.When differentiation fire alarm possibility occurrence is high, send fire alarm signal, and whether decision exports the circuit breaker tripping signal as required.
Below in conjunction with Fig. 3 ~ Fig. 5 circuit control procedure of the present utility model is described:
Referring to accompanying drawing 3, described CPU main circuit board composed as follows: 1) CPU treatment circuit: form by integrated circuit U5, oscillatory circuit (capacitor C 6, capacitor C 7, crystal oscillator Y1), reset circuit (resistance R 15, electrochemical capacitor C11), E2 memory circuit (U7, C5), isolation circuit (capacitor C 3, capacitor C 14).The CPU treatment circuit is a center cell of the present utility model, finish to various parameters gather, operations such as storage, computing, processing, and send the action command of pilot lamp, alarm sound, relay etc. according to ruuning situation, reach the purpose of fire prevention control.2) liquid crystal display circuit: form by liquid crystal field drive integrated circult U1, liquid crystal display (U6, resistance R 10, resistance R 11, capacitor C 4), CPU processor integrated circuit U5 carries out serial communication by 36,37,38 pins and liquid crystal field drive integrated circult U1, transmit the liquid crystal display steering order, thereby realize that liquid crystal shows in real time.3) 485 communicating circuits: form communicating circuit with centralized supervisory and control equi (monitoring host computer) by U2, capacitor C 2, resistance R 5, resistance R 6, resistance R 9; Form communicating circuit with detector by U4, capacitor C 1, resistance R 2, resistance R 3, resistance R 4.4) indicator light circuit: by serial-shift control chip U3, and diode D2 ~ D6 forms, control pilot lamp by CPU processor integrated circuit U5 by the 45th, 46 pins and U4 serial communication and indicate power supply, communication, early warning, fire alarm and dropout information.5) button treatment circuit: be made up of button K1～K7 and resistance R 7, resistance R 8, resistance R 16～R19, resistance R 29, CPU processor integrated circuit U5 gathers the input information of 7 buttons by the 14th～20 pin, finishes man-machine conversation.6) alarm sound circuit: be made up of resistance R 21, triode Q1, hummer B1, CPU processor integrated circuit U5 controls triode Q1 conductings by the 34th pin and resistance R 21 or closes, and then the sounding of control hummer B1, realizes alarm sound output.
Referring to accompanying drawing 4, described imput output circuit plate composed as follows: 1) mu balanced circuit: civil power 220V voltage becomes DC5V through peripheral components conversion, voltage stabilizings such as U1 AC/DC power module and capacitor C 4～C6, inductance L 4, X1 is sent to cpu pcb by connector, uses for body each several part circuit and detector.2) current acquisition circuit: current transformer L1～L3, resistance R 1～R6, capacitor C 1～C3 is transmission of electricity cable A, B, C triple-phase line current acquisition circuit, current signal is imported by JP1, be transformed into voltage signal in proportion by Acquisition Circuit, and be sent to cpu pcb U5(microprocessor by connector X1) 48,49,50 pins, carry out the AD conversion by microprocessor, draw actual current value.3) import by JP3 with the communication signal of watch-dog main frame, be sent to cpu pcb U2(485 communication integrated package by connector X1) relevant pin, is the RS232 signal by integrated package U2 with 485 signal transformations, insert the 23rd, 24 pins (microprocessor communication port) of integrated package U5 by the 1st, the 4th pin of integrated package U2, thereby make the system monitoring unit main frame to carry out information communication with this watch-dog.
Referring to accompanying drawing 5, described power supply circuit board composed as follows: 1) A, B, C three-phase line voltage Acquisition Circuit: form by high-accuracy voltage mutual inductor T1 ~ T3, resistance R 8, resistance R 9, resistance R 11, resistance R 12, resistance R 14, resistance R 15, resistance R 25, resistance R 26, resistance R 27; Mutual inductor is a current mode, and voltage is high more, and electric current is big more, and current signal is converted to voltage signal by resistance again and is sent to 30,31,32 pins of cpu pcb integrated circuit U5 by connector X2, carries out the AD conversion by microprocessor, draws actual voltage value.2) controlling output circuit: the warning output circuit of forming by resistance R 1, triode Q1, diode D1, relay J D1; Reach warning and the dropout output circuit formed by resistance R 2, triode Q2, diode D2, relay J D2.The control signal of this control circuit is sent according to preset instructions by host CPU in good time, and two groups of output contacts are exported by 1～4 pin of JP3.3) be connected with detector: 9,10 pins of connection terminal JP3 are the communication connection terminal of watch-dog and detector, and 11,12 pins are the power supply terminal of detector.These several terminals are connected to the CPU microprocessor in inside by connector X2.4) generating circuit from reference voltage: form by resistance R 21, resistance R 22, capacitor C 5～C7 and reference voltage source integrated package Z1, produce the 2.5V reference voltage, as the reference voltage of watch-dog AD sampling by this circuit.
Above-described components and parts are the commercial goods, and the marque in the present embodiment can see table 1:
The components and parts inventory sent out main by table 1
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection domain of the present utility model.
Claims (4)
1. electrical fire monitor, it is characterized in that: comprise shell on the back and cover, the bottom of described shell on the back is equipped with the imput output circuit plate, and the middle part of described shell on the back is equipped with power supply circuit board; Be equipped with the CPU main circuit board on the described cover; Carrying out circuit by contact pin on the circuit board separately or socket between described CPU main circuit board and described imput output circuit plate and the power supply circuit board is connected; Integrate by self-tapping screw between described drain pan and the cover and be connected.
2. according to the described electrical fire monitor of claim 1, it is characterized in that: described CPU main circuit board comprises CPU treatment circuit and peripheral interface circuit, and described peripheral interface circuit is by drive circuit of indicator, button treatment circuit, alarm sound circuit, liquid crystal display circuit, 485 communicating circuits, form with the signal connecting circuit of described imput output circuit plate and power supply circuit board.
3. according to the described electrical fire monitor of claim 1, it is characterized in that: described imput output circuit plate is made up of phase voltage Acquisition Circuit, controlling output circuit and external cabling terminal.
4. according to the described electrical fire monitor of claim 1, it is characterized in that: described power supply circuit board is made up of phase current Acquisition Circuit, mu balanced circuit and external cabling terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201906689U CN202084134U (en) | 2011-06-08 | 2011-06-08 | Electrical fire monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201906689U CN202084134U (en) | 2011-06-08 | 2011-06-08 | Electrical fire monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084134U true CN202084134U (en) | 2011-12-21 |
Family
ID=45344757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201906689U Expired - Fee Related CN202084134U (en) | 2011-06-08 | 2011-06-08 | Electrical fire monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084134U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231221A (en) * | 2011-06-08 | 2011-11-02 | 无锡金桥自动化技术有限公司 | Electric fire disaster monitor |
| CN103065418A (en) * | 2012-12-10 | 2013-04-24 | 北京博顿电气有限公司 | Single return circuit electrical fire monitoring extension with extensible functions |
| CN106888559A (en) * | 2017-04-19 | 2017-06-23 | 浙江开民电器有限公司 | A kind of mounting structure of electrical fire monitor |
| CN114038150A (en) * | 2021-12-09 | 2022-02-11 | 江苏业力科技有限公司 | Electric fire early warning monitoring devices |
-
2011
- 2011-06-08 CN CN2011201906689U patent/CN202084134U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231221A (en) * | 2011-06-08 | 2011-11-02 | 无锡金桥自动化技术有限公司 | Electric fire disaster monitor |
| CN103065418A (en) * | 2012-12-10 | 2013-04-24 | 北京博顿电气有限公司 | Single return circuit electrical fire monitoring extension with extensible functions |
| CN106888559A (en) * | 2017-04-19 | 2017-06-23 | 浙江开民电器有限公司 | A kind of mounting structure of electrical fire monitor |
| CN114038150A (en) * | 2021-12-09 | 2022-02-11 | 江苏业力科技有限公司 | Electric fire early warning monitoring devices |
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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: 20111221 Termination date: 20160608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |