CN202257832U - Detector for electric fire protection - Google Patents
Detector for electric fire protection Download PDFInfo
- Publication number
- CN202257832U CN202257832U CN2011203591081U CN201120359108U CN202257832U CN 202257832 U CN202257832 U CN 202257832U CN 2011203591081 U CN2011203591081 U CN 2011203591081U CN 201120359108 U CN201120359108 U CN 201120359108U CN 202257832 U CN202257832 U CN 202257832U
- Authority
- CN
- China
- Prior art keywords
- unit
- power supply
- signal
- detector
- electric arc
- 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
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a detector for electric fire protection, which comprises a failure arc detection module, a central processing unit, a power supply module, an acousto-optic alarm unit and an upper computer communication unit, wherein the failure arc detection unit is connected to a load circuit and can be used for recognizing a failure arc, the central processing unit is used for receiving an output signal of the failure arc detection module and making corresponding processing, the power supply module is used for supplying power to the central processing unit and the failure arc detection module, the acousto-optic alarm unit can be used for carrying out site indication and is connected with the central processing unit; and the upper computer communication unit can be in communication connection with a superior detector and is connected with the central processing unit. According to the technical scheme, by detecting the failure arc in the circuit by adopting the failure arc detection module and sending a site alarm prompt and transmitting an alarm signal, electric fire is effectively prevented.
Description
Technical field
The utility model relates to the fire hazard monitoring technical field, relates in particular to a kind of detector for electric fire protection that can play timely and effective prevention effect in the electrical fire prevention area.
Background technology
Existing detector for electric fire protection mainly contains residual electricity streaming and temp. type sensor, does not have tape jam arc-detection function, and mainly is transmitter character; There is not the onsite alarming function; When the generation of warning is arranged, have only Control Room just to see and control like this, the scene can not be controlled; In the time of the needs execute-in-place, influence very much the time of response.Present detector for electric fire protection has only collection in worksite and signal upload function, and the signal upload function is more single, and transmission range is short, and antijamming capability is poor too.
And another main cause that can cause electrical fire circuit that to be aging circuit or various other reasons cause connects empty disconnected, the empty short and fault electric arc that takes place; Owing to short, the empty disconnected fault electric arc that causes of the void of circuit always runs into through regular meeting in our life; As circuit cutting takes place or roll cause that insulation course is damaged, aging these of the loosening and line insulation of the binding post of electric switch all can be attended by the generation of fault electric arc with our the closely bound up action of living in the life; And the fire goods of fault electric arc around igniting just can cause electrical fire.And the electrical fire that this fault electric arc causes is not monitored detecting devices reliably on market.
Summary of the invention
In order to solve above-mentioned technical matters; The purpose of the utility model provides a kind of detector for electric fire protection; Adopt the fault electric arc in the fault electric arc detection module testing circuit, and can send onsite alarming and point out and alerting signal is uploaded, coming effectively, the prevention electrical fire takes place.
In order to reach above-mentioned purpose, the technical scheme below the utility model has adopted:
A kind of detector for electric fire protection comprises that one is connected the fault electric arc detection module that also can identify fault electric arc in the loaded line; One accepts the output signal of fault electric arc detection module and makes the CPU of handled; One is the power module of CPU and the power supply of fault electric arc detection module; One can carry out the acousto-optic warning unit of on-the-spot indication, and acousto-optic warning unit is connected with CPU; One can carry out the upper machine communication unit that communication is connected with higher level's detector, and the upper machine communication unit is connected with CPU.
As preferably, said power module comprises: one from the loaded line power taking and the switching power supply of stabilized voltage supply is provided; One provides the standby power unit of stabilized voltage supply through battery; One can realize the power supply automatic switch unit of automatic switchover power supply between switching power supply and standby power unit.
Further preferred, said power module comprises: the power supply status collecting unit of the duty of a pilot switch power supply unit and standby power unit, the output terminal of power supply status collecting unit connects CPU.
As preferably, said fault electric arc detection module comprises: one gathers the high-frequency signal sampling unit of the arc signal in the loaded line; One carries out the signal processing unit of Filtering Processing with the output signal of high-frequency signal sampling unit; One gathers the power supply collecting unit at zero point at the power supply zero point in the loaded line; One can identify the fault electric arc analytic unit of fault electric arc according to the output signal of signal processing unit and power supply collecting unit at zero point, and the output terminal of fault electric arc analytic unit connects CPU.Gather arc signal through the high-frequency signal sampling unit, and signal is transferred to signal processing unit handles, at last the arc signal of handling well is transferred to the fault electric arc analytic unit; The fault electric arc analytic unit is collected arc signal; And the information of gathering power supply collecting unit at zero point, distinguished arc, bad arc, if good arc will continue to detect; If bad arc will send alerting signal to the upper end CPU, realized the analyzing and testing of fault electric arc.
As preferably, said high-frequency signal sampling unit comprises: one gathers the high frequency sampling coil of the arc signal in the loaded line; One arc signal with collection carries out the filter capacitor of Filtering Processing; Some sampling resistors that filtered signal is sampled; One carries out the rectification circuit that rectification is handled with sampled signal.
As preferably, said power supply collecting unit at zero point comprises: one is connected on the rectifier bridge in the loaded line; One is connected the optocoupler of the output terminal of rectifier bridge, and the output terminal of optocoupler is connected to the fault electric arc analytic unit.
As preferably, said upper machine communication unit adopts constant current source current signal or RS485 communication mode.
The utility model is owing to adopted above technical scheme; In detector for electric fire protection, used on-the-spot test reset control function and on-the-spot indication warning function, and used the fault electric arc detection technique, to because the electrical fire that line fault electric arc causes plays effective monitoring and detection; And the scene of realizing shows detector's status; Make fire detector more directly perceived, more can accomplish warning function in advance, so just practiced thrift the time cycle of response greatly the field staff.And constant current source current signal or RS485 communication mode are adopted in the communication between the utility model and the higher level's detector; Long transmission distance; Antijamming capability is strong; Higher level's sensor also can be controlled the reset noise reduction operation of this detector through RS485, has started the beginning of detector for electric fire protection On-the-spot Interaction, has very high actual use value.
Description of drawings
Fig. 1 is the schematic block circuit diagram of embodiment 1.
Fig. 2 is the circuit diagram of embodiment 1 medium-high frequency signal sampling unit.
Fig. 3 is the circuit diagram of signal processing unit among the embodiment 1.
Fig. 4 is the circuit diagram of power supply collecting unit at zero point among the embodiment 1.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
Embodiment 1:
A kind of detector for electric fire protection as shown in Figure 1 comprises: one is connected the fault electric arc detection module 2 that also can identify fault electric arc in the loaded line; One accepts the output signal of fault electric arc detection module 2 and makes the CPU k of handled; One is the power module 1 of CPU k and 2 power supplies of fault electric arc detection module; One can carry out the acousto-optic warning unit e of on-the-spot indication, and acousto-optic warning unit e is connected with CPU k; One can carry out the upper machine communication unit f that communication is connected with higher level's detector, and upper machine communication unit f is connected with CPU k.
As shown in Figure 1, said power module 1 comprises: one from the loaded line power taking and the switching power supply g of stabilized voltage supply is provided; One provides the standby power unit h of stabilized voltage supply through battery; One can realize the power supply automatic switch unit i of automatic switchover power supply between switching power supply g and standby power unit h; The power supply status collecting unit j of the duty of one pilot switch power supply unit g and standby power unit h, the output terminal of power supply status collecting unit j connects CPU k.Switching power supply g power taking from loaded line produces the stabilized voltage supply that is used for the detector in-line power through handling; There is standby power unit h detector inside, and behind the line interruption electricity, standby power unit h is that detector provides stabilized voltage supply through Ni-MH battery just.The automatic switchover of power supply is changed by power supply automatic switch unit i automatically; When switching power supply g has electricity; The Switching Power Supply power supply after switching power supply g outage, automatically switches to standby power unit h power supply; After switching power supply g powered on again, power supply automatic switch unit i automatically switched to the Switching Power Supply power supply.CPU k gathers the supply voltage of switching power supply g and standby power unit h through power supply status collecting unit j; Current through internal judgment is switching power supply g or standby power unit h power supply; Then power supply power supply information is sent to acousto-optic warning unit e, switching power supply on detector interface power supply pilot lamp will be bright or be gone out.When CPU k operation just often, and can send an operate as normal signal and give acousto-optic warning unit e, acousto-optic warning unit e can be on the detector front panel indication detector module state in proper working order.
As shown in Figure 1, said fault electric arc detection module 2 comprises: one gathers the high-frequency signal sampling unit a of the arc signal in the loaded line; The one output signal with the high-frequency signal sampling unit carries out the signal processing unit b of Filtering Processing; One gathers power supply collecting unit at the zero point d at the power supply zero point in the loaded line; One can identify the fault electric arc analytic unit c of fault electric arc according to the output signal of signal processing unit and power supply collecting unit at zero point, and the output terminal of fault electric arc analytic unit c connects CPU k.High-frequency signal collecting unit a gathers the arc signal in the loaded line through high frequency sampling coil; High frequency sampling coil is transferred to signal processing unit b with the arc signal that collects; Signal processing unit b handles signal in inside; Signal after handling is transferred to fault electric arc analytic unit c; Fault electric arc processing unit c gathers the power supply zero point in the loaded line through power supply collecting unit at zero point d, through the above-mentioned signal of internal processes analysis and judgement, but just can detect the fault electric arc whether circuit has initiation fire.After the fault electric arc analytic unit has been judged arc signal; Provide a loaded line state and judge signal; And the loaded line state judged that signal is transferred to CPU k; The judgement signal that CPU k provides according to fault electric arc analytic unit c, analysis and judgement circuit situation is given acousto-optic warning unit e and upper machine communication unit f with information transmission then; Upper machine communication unit f can control that CPU k resets and the noise reduction operation through serial ports; Will notify acousto-optic warning unit e to send sound and light alarm if CPU k detects fault electric arc, and control upper machine communication unit f sends alerting signal to the outside higher level's detector of detector, upper machine communication unit f is through constant current source current signal or the RS485 class survey device transmission state order that makes progress; If CPU k receives the circuit normal signal that fault electric arc unit c sends; Will notify acousto-optic warning unit to send the indication of loaded line normal condition; And control upper machine communication unit f, through constant current source current signal or RS485 the outside higher level's detector of detector is sent loaded line and normally report.
As shown in Figure 2, said high-frequency signal sampling unit comprises: one gathers the high frequency sampling coil a1 of the arc signal in the loaded line; One arc signal with collection carries out the filter capacitor a2 of Filtering Processing; Sampling resistor a3, a4 that filtered signal is sampled; One carries out the rectification circuit a5 that rectification is handled with sampled signal.The fault electric arc sampling unit is gathered the arc signal among the load circuit a6 through high frequency sampling coil a1; Through filter capacitor a2 filtering; Filtered sampled signal is through sampling resistor a3, a4, and the signal that will collect through rectification circuit a5 is uploaded to signal processing unit.Its advantage is to have adopted radio-frequency coil that loaded line is sampled, and can skip low-frequency ac signal like this and directly collects the hf electric arc signal that occurs in the circuit, has saved path and transformational analysis process like this; And in sampling process, also used rectifier bridge a5; Advantage is can the ripple of negative half-cycle be incorporated into positive half cycle, has widened the scope of sample magnitude, makes wideer that magnitude of voltage can gather; And, improved the speed of fault analysis and judgement electric arc greatly with the closeness that helps analyzing the arc half-wave.
As shown in Figure 3; Signal processing unit b receives the arc signal that transmits from the fault electric arc sampling unit; Through diode b1, resistance b2 and resistance b4, electric capacity b3, b5 signal waveform is handled, and will be handled garbled arc signal and be uploaded to the fault electric arc analysis and processing unit c among Fig. 1.Its advantage is to adopt diode b1 filtering; Removed the spike ripple that the fault electric arc sampling unit transmits, prevented that so very high-tension pulsating wave is transferred to the fault electric arc analysis and processing unit, prevents to burn out main analysis chip; And can play anti-external magnetic field effects of jamming; Improved the anti-tampering function of module greatly, and, can electric arc ripple filtering clutter be transferred to the fault electric arc analysis and processing unit more again through the high-pass filtering of back resistance, electric capacity; Improved the quality of the electric arc ripple that transmits so greatly; Removed the clutter that causes owing to external disturbance, more helped analysis and judgement, simplified the accuracy of the failure judgement electric arc of the step judged and raising fault electric arc.
As shown in Figure 4, said power supply collecting unit at zero point comprises: one is connected on the rectifier bridge d1 in the loaded line; One is connected the optocoupler d4 of the output terminal of rectifier bridge, and the output terminal of optocoupler d4 is connected to fault electric arc analytic unit c.Its advantage is to provide for the analysis of fault electric arc the zero crossing of a sinusoidal current; Can judge more when the analysis of failure arc signal that like this crest at sine wave still is the arc signal that produces at null position, help fault electric arc analysis and processing unit c to analyze and distinguish fault electric arc; And the zero passage sampling has directly taked rectifier bridge d1 to add resistance d2, d3 step-down, gathers the method at zero point then through optocoupler d4, and simple for structure, used components and parts are few, provide cost savings.
Claims (7)
1. a detector for electric fire protection is characterized in that, comprising:
One is connected the fault electric arc detection module (2) that also can identify fault electric arc in the loaded line;
One accepts the output signal of fault electric arc detection module (2) and makes the CPU of handled;
One is the power module (1) of CPU and fault electric arc detection module (2) power supply;
One can carry out the acousto-optic warning unit of on-the-spot indication, and acousto-optic warning unit is connected with CPU;
One can carry out the upper machine communication unit that communication is connected with higher level's detector, and the upper machine communication unit is connected with CPU.
2. a kind of detector for electric fire protection according to claim 1 is characterized in that, said power module (1) comprising:
One from the loaded line power taking and the switching power supply of stabilized voltage supply is provided;
One provides the standby power unit of stabilized voltage supply through battery;
One can realize the power supply automatic switch unit of automatic switchover power supply between switching power supply and standby power unit.
3. a kind of detector for electric fire protection according to claim 2 is characterized in that, said power module (1) comprising:
The power supply status collecting unit of the duty of one pilot switch power supply unit and standby power unit, the output terminal of power supply status collecting unit connects CPU.
4. a kind of detector for electric fire protection according to claim 1 is characterized in that, said fault electric arc detection module (2) comprising:
One gathers the high-frequency signal sampling unit of the arc signal in the loaded line;
One carries out the signal processing unit of Filtering Processing with the output signal of high-frequency signal sampling unit;
One gathers the power supply collecting unit at zero point at the power supply zero point in the loaded line;
One can identify the fault electric arc analytic unit of fault electric arc according to the output signal of signal processing unit and power supply collecting unit at zero point, and the output terminal of fault electric arc analytic unit connects CPU.
5. a kind of detector for electric fire protection according to claim 4 is characterized in that, said high-frequency signal sampling unit comprises:
One gathers the high frequency sampling coil of the arc signal in the loaded line;
One arc signal with collection carries out the filter capacitor of Filtering Processing;
Some sampling resistors that filtered signal is sampled;
One carries out the rectification circuit that rectification is handled with sampled signal.
6. a kind of detector for electric fire protection according to claim 4 is characterized in that, said power supply collecting unit at zero point comprises:
One is connected on the rectifier bridge in the loaded line;
One is connected the optocoupler of the output terminal of rectifier bridge, and the output terminal of optocoupler is connected to the fault electric arc analytic unit.
7. a kind of detector for electric fire protection according to claim 1 is characterized in that, said upper machine communication unit adopts constant current source current signal or RS485 communication mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591081U CN202257832U (en) | 2011-09-23 | 2011-09-23 | Detector for electric fire protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591081U CN202257832U (en) | 2011-09-23 | 2011-09-23 | Detector for electric fire protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257832U true CN202257832U (en) | 2012-05-30 |
Family
ID=46119042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203591081U Expired - Fee Related CN202257832U (en) | 2011-09-23 | 2011-09-23 | Detector for electric fire protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257832U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927842A (en) * | 2013-01-14 | 2014-07-16 | 孙巍巍 | Novel electrical fire monitoring detector |
| CN104215826A (en) * | 2014-06-05 | 2014-12-17 | 张天福 | Faulted arc type electrical fire monitoring detector and faulted arc recognition and alarm method |
| CN109031054A (en) * | 2017-06-12 | 2018-12-18 | 孙麓轩 | Fault arc detection device |
| CN111030302A (en) * | 2019-12-20 | 2020-04-17 | 吉林省龙电电气有限公司 | Intelligent electricity safety detector |
| CN117523808A (en) * | 2024-01-04 | 2024-02-06 | 珠海派诺科技股份有限公司 | Electrical fire early warning system and method capable of being monitored in real time based on Internet of things |
-
2011
- 2011-09-23 CN CN2011203591081U patent/CN202257832U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927842A (en) * | 2013-01-14 | 2014-07-16 | 孙巍巍 | Novel electrical fire monitoring detector |
| CN104215826A (en) * | 2014-06-05 | 2014-12-17 | 张天福 | Faulted arc type electrical fire monitoring detector and faulted arc recognition and alarm method |
| CN109031054A (en) * | 2017-06-12 | 2018-12-18 | 孙麓轩 | Fault arc detection device |
| CN111030302A (en) * | 2019-12-20 | 2020-04-17 | 吉林省龙电电气有限公司 | Intelligent electricity safety detector |
| CN117523808A (en) * | 2024-01-04 | 2024-02-06 | 珠海派诺科技股份有限公司 | Electrical fire early warning system and method capable of being monitored in real time based on Internet of things |
| CN117523808B (en) * | 2024-01-04 | 2024-04-09 | 珠海派诺科技股份有限公司 | Electrical fire early warning system and method capable of being monitored in real time based on Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202230166U (en) | Fault electric arc detection module and electric fire hazard monitoring detector | |
| CN202257832U (en) | Detector for electric fire protection | |
| CN102023253B (en) | Lightning-proof monitoring warning system | |
| CN201069461Y (en) | A life monitoring device for aluminum electrolysis capacitor in the frequency converter | |
| CN102426317B (en) | Fault detection method of intelligent power grid | |
| CN203929969U (en) | Arc fault detection device | |
| CN105334811A (en) | Wireless tower monitoring method of power lines based on ZigBee network | |
| CN105372539A (en) | Lightning protection monitoring remote alarm control system and control method | |
| CN104215870B (en) | The system and method for characterizing the electrical connection between power supply unit and vehicles energy accumulating equipment | |
| CN203299287U (en) | Water heater detection apparatus | |
| CN204287425U (en) | Mine Switch operating condition observation circuit | |
| CN204287418U (en) | A kind of circuit breaker switch state pick-up unit | |
| CN109738834A (en) | A kind of detection device of server power supply | |
| CN202353313U (en) | Monitoring system of power supply equipment for power | |
| CN209356609U (en) | A kind of intelligent voltage fault detection means | |
| CN109962446A (en) | Safety utilization of electric power intelligent protection device | |
| CN202814597U (en) | High-voltage power transmission line temperature measuring system | |
| CN201935981U (en) | Fault detector for electric distribution network | |
| CN209709661U (en) | Safety utilization of electric power intelligent protection device | |
| CN205404684U (en) | Oily charge pump high tension cable insulation resistance on -line monitoring device dives | |
| CN211375009U (en) | Direct current power supply loop detection device | |
| CN208314953U (en) | A kind of detector for electric fire protection and electric fire monitoring system | |
| CN108418284B (en) | Working power supply circuit | |
| CN206149026U (en) | Distribution system dropout controlling means | |
| CN108631394B (en) | Internal resistance detection sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315317, No. 6, industrial development road, Qiaotou town, Ningbo City, Zhejiang, Cixi Patentee after: Ningbo Xi Yu electrical Polytron Technologies Inc Address before: 315317, No. 6, development avenue, Qiaotou Industrial Zone, Ningbo, Zhejiang, Cixi Patentee before: Xiyu Electronic Development Co., Ltd., Ningbo |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Xi Yu Intelligent Technology Co., Ltd. Assignor: Ningbo Xi Yu electrical Polytron Technologies Inc Contract record no.: 2017330000150 Denomination of utility model: Electric fire monitoring detector and self-checking method thereof Granted publication date: 20120530 License type: Exclusive License Record date: 20171123 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electric fire monitoring detector and self-checking method thereof Effective date of registration: 20171123 Granted publication date: 20120530 Pledgee: Chen Guo Pledgor: Ningbo Xi Yu electrical Polytron Technologies Inc Registration number: 2017330000193 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20180923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |