CN2722570Y - Explosive-proof feed detecting long-distance disconnector with high voltage - Google Patents
Explosive-proof feed detecting long-distance disconnector with high voltage Download PDFInfo
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- CN2722570Y CN2722570Y CN 200420023443 CN200420023443U CN2722570Y CN 2722570 Y CN2722570 Y CN 2722570Y CN 200420023443 CN200420023443 CN 200420023443 CN 200420023443 U CN200420023443 U CN 200420023443U CN 2722570 Y CN2722570 Y CN 2722570Y
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Abstract
The utility model relates to explosion-proof electric equipment used in the underground coal mine and the explosive environment, in particular to an explosive-proof feed detecting remote electricity breaking device with high voltage which is provided with an explosion-proof circuit board. The circuit board comprises a feed detection device which can detect the feed signal and a control device which can control the remote electricity breaking. The utility model integrates the two functions of the remote current breaking and the feed state monitoring, and has the remote electricity breaking function and the monitoring function of the current supply state. The safe electricity utilization requirement of the coal mine can be realized by using a set of device.
Description
Invention field
The electrical apparatus for explosive atmospheres that the utility model relates under the coal mine and explosive atmosphere is used, particularly realize the long-range outage and the feed checkout equipment of wind-powered electricity generation gas shutting function in the coal mine safety monitoring system, more particularly, relate to the long-range breaker device of a kind of explosion-proof high-pressure feed detection type.
Background technology
When coal mine gas transfinites, often need the equipment of remote (beyond 2Km) is cut off the power supply and locking control, and will confirm that this is the requirement of safety regulations in coal mine the off-position that is de-energized equipment.The disclosed a kind of explosion-proof type telemechanical switch of Chinese patent CN 2107053U only has the function of outage, lacks the power supply state monitoring function.In the prior art, long-range outage and feed condition monitoring are two independently products, and the former adopts explosion separation structure.The feed condition transducer has two classes, one class is to adopt electric field induction principle to detect feed condition, it is that the feed condition sensor card is detected the three-phase imbalance electric field on feeder cable, thereby detect power supply state, but the general employing of high voltage supply cable is armoured cable under the coal mine, this cable sheath can produce shielding to electric field, causes transducer can't detect the power supply state of equipment; One class is to get the auxiliary contact signal to obtain electric feed signal from controlled flame-proof switch.The long-range circuit breaker of explosion separation structure, price height, Heavy Weight, distribution field induction type feed condition transducer, it is unreliable that feed detects; Join auxiliary contact signal feed state sensor, need take two loudspeaker mouths of flame-proof switch, just can't connect the feed condition transducer when loudspeaker mouth is not enough.
Summary of the invention
The purpose of this utility model provides the long-range breaker device of a kind of explosion-proof high-pressure feed detection type, and it not only has explosion prevention function, and integrates long-range outage and two functions of feed condition monitoring.
The purpose of this utility model is achieved in that the long-range breaker device of a kind of explosion-proof high-pressure feed detection type, and it comprises terminal, the non-peace side cable that shell, signal indicating device, output interface, input interface, intrinsic safety side inlet wire are used.Wiring board is a blast resistance construction, and wiring board places in the shell; Wiring board connects signal indicating device, and wiring board comprises the feed checkout gear that can detect electric feed signal and the control device of the long-range outage of may command; The feed checkout gear that can detect electric feed signal connects input interface, and the control device of the long-range outage of may command connects output interface.
On the basis of technique scheme, the utility model also has following further scheme:
Described blast resistance construction is for watering seal structure.
The described seal structure that waters is that epoxy resin waters seal structure or insulant interstitital texture.
Described signal indicating device is indicator light or voltmeter.
Described shell is plastic casing or can, or the Stainless Steel box.
Describedly detect the feed checkout gear of electric feed signal and the control device of the long-range outage of may command contains, control signal indicating circuit, control buffer circuit, relay, feedback circuit, feedback isolation circuit and current rectifying and wave filtering circuit; The input of current rectifying and wave filtering circuit detects input interface with feed and is connected, the output of current rectifying and wave filtering circuit is electrically connected with the input of feedback isolation circuit, the output of feedback isolation circuit is electrically connected with the input of feedback circuit, feedback circuit is exported feed by lead-out terminal, binding post is electrically connected with feedback circuit and control signal indicating circuit respectively, the output of control signal indicating circuit is electrically connected with the input of control buffer circuit, the output of control buffer circuit is electrically connected with relay, and the output of relay is connected with extraneous by output interface.
Described feedback isolation circuit is the photoelectricity coupling circuit.
Advantage of the present utility model is as follows:
Because wiring board is the explosion-proof structure, and wiring board comprises the feed checkout gear that can detect electric feed signal and the control device of the long-range outage of may command.So the utility model integrates long-range outage and two functions of feed condition monitoring, has both possessed long-range power down function, possesses the power supply state monitoring function again, uses a covering device just can realize the needs of safety of coal mines electricity consumption.
Blast resistance construction is for watering seal structure.Explosion separation structure of the prior art is based on thick and heavy steel plate, the utility model be detecting the feed checkout gear of electric feed signal and the control device of the long-range outage of may command is encapsulated in one, makes two devices on the wiring board all with air insulated and constitute the integrated explosion-proof structure.Compact conformation of the present utility model, simple, when especially two kinds of devices all are blast resistance construction, the remarkable volume of reduction equipment not only, and help alleviating weight of equipment and reduction manufacturing cost.
Used the control signal indicating circuit, the control buffer circuit, feedback circuit, the feedback isolation circuit, after current rectifying and wave filtering circuit, after the detection input interface receives electric feed signal, through the resistance step-down, then through current rectifying and wave filtering circuit filtering, arrive the feedback isolation circuit, make the feedback isolation circuit turn-on, signal arrives feedback circuit, feedback circuit work, the feedback signal indicator light is bright, simultaneously can detect low level in the feedback terminal of binding post, proving has electric feed signal at present, if there is not electric feed signal, buffer circuit can't conducting, feedback amplifier can't the generation effect, and the feedback signal indicator light goes out, and proves no electric feed signal at present, as long as have voltage just can detect in the equipment, be not subjected to the screening effect of armoured cable.Though prior art also can not be subjected to the armoured cable screening effect to obtain electric feed signal.But, join auxiliary contact signal feed state sensor, need take flame-proof switch loudspeaker mouth, just can't connect the feed condition transducer when loudspeaker mouth is not enough.The utility model can be saved a loudspeaker mouth at least and not have the drawback of prior art.
Described feedback isolation circuit has used after the photoelectricity coupling circuit, not only good in anti-interference performance, and reliable operation.
Description of drawings
Fig. 1 is a sectional structure schematic diagram of the present utility model;
Fig. 2 is a circuit block diagram of the present utility model;
Fig. 3 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing in detail execution mode of the present utility model is described in detail:
The long-range breaker device of a kind of explosion-proof high-pressure feed detection type, shell (9) suitably made such as ABS engineering plastics or iron and steel.Signal indicating device can be signal lamp (5) or voltmeter, and indicator light (5) or voltmeter place in the shell (9), and shell (9) is provided with the transparent protective window (4) that can see signal indicating device.Signal indicating device connection control signal indicating circuit (12), control signal indicating circuit (12) is installed on the wiring board (2).The terminal (10) that intrinsic safety side inlet wire is used, output interface (15) and input interface (16) are installed on the shell (9).Intrinsic safety side cable (7) and non-peace side cable (8) are fixed on the shell (9) by cable pressing plate (1).Wiring board (2) is the explosion-proof structure, wiring board (2) encapsulation is placed in the shell (9), described explosion-proof structure promptly uses epoxy resin that all elements on the wiring board (2) are watered envelope for watering seal structure, and element and air on the wiring board (2) are isolated fully; Perhaps, wiring board (2) is gone back available epoxy and is added insulating heat-conduction material oxidation aluminium glue envelope.Described shell (9) is plastic casing or can, or the Stainless Steel box, and shell (9) helps heat radiation when using can.Wiring board (2) connects signal indicating device, and wiring board (2) comprises the feed checkout gear that can detect electric feed signal and the control device of the long-range outage of may command; The feed checkout gear that can detect electric feed signal connects input interface (16), and the control device of the long-range outage of may command connects output interface (15).
Describedly detect the feed checkout gear of electric feed signal and the control device of the long-range outage of may command is made of following circuit:
Control signal indicating circuit (12), control buffer circuit (13), relay (14), feedback circuit (11), feedback isolation circuit (18) and current rectifying and wave filtering circuit (17); The input of current rectifying and wave filtering circuit (17) detects input interface (16) with feed and is connected, the output of current rectifying and wave filtering circuit (17) is electrically connected with the input of feedback isolation circuit (18), the output of feedback isolation circuit (18) is electrically connected with the input of feedback circuit (11), feedback circuit (11) is by lead-out terminal output feed, binding post (10) is electrically connected with feedback circuit (11) and control signal indicating circuit (12) respectively, the output of control signal indicating circuit (12) is electrically connected with the input of control buffer circuit (13), the output of control buffer circuit (13) is electrically connected with relay (14), and the output of relay (14) is connected with extraneous by output interface (15).
Shell (9) is made up of loam cake and housing two parts, and the junction of loam cake and housing is provided with 3U type sealing strip (3), and 3U type sealing strip (3) can prevent that dust etc. from entering in the shell (9).
Described feedback isolation circuit (18) is photoelectrical coupler V10.
Described relay (14) is a tongue tube.Described relay is behind reed pipe, because tongue tube is low in energy consumption, operating current is less, the utility model need not to power on the spot and also can work, and has brought very big convenience to use.
As shown in Figure 3, current rectifying and wave filtering circuit 17 is made up of bridge heap QD and resistance R 8, R9.
As shown in Figure 3, feedback isolation circuit (18) is made up of photoelectrical coupler V10.
As shown in Figure 3, feedback circuit 11 is made up of triode V13, triode V14, capacitor C 8 and light-emitting diode V7 and peripheral circuit thereof.
As shown in Figure 3, control buffer circuit 13 is made up of DC/DC modular converter, photoelectrical coupler V9, triode V11, triode V12 and their peripheral circuit.The DC/DC modular converter can be converted to the 18V DC power supply stable 12V DC power supply, makes relay 14 working stabilities.
As shown in Figure 3, relay 14 is made up of tongue tube.It is a kind of high withstand voltage little power consumption control relay, the 660V explosion-proof switch that may command 2Km is outer.Telemechanical switch of the prior art adopts common relay, realize this function, must establish a flameproof and intrinsically safe power-supply device on the spot.
Indicator light among Fig. 1 (5) is danger signal indicator light V6 and green indicator light V7, the V8 of indication among Fig. 3 just, and three indications are close together, and can see from transparent protective window (4).
Explosion-proof form of the present utility model to the no specific (special) requirements of shell (9), adopts common shell to get final product for watering the envelope intrinsic safety type.Need not to adopt baroque flameproof enclosure, saved production cost greatly.
Operation principle of the present utility model is as follows:
1, D.C. regulated power supply is received on the power interface of binding post (10), and 12V-18V is transferred in output, at this moment, V6 is bright for the danger signal indicator light, shows that power supply is normal, and green indicator light V7, V8 go out, and showing does not have feedback signal and control signal now.
2, control loop: the control terminal in the binding post (10) is inserted high level, at this moment, V8 is bright for the green indicator light, the high low-voltage of photoelectrical coupler V9 conducting in the control buffer circuit (13), high level signal enters in the amplifying circuit that is made of triode V11 and resistance R 2, capacitor C 1, the emitter conducting of triode V11, control relay K action, output contact KOA, the KOB of control output interface 15 is closed or open; If there is not the control signal of high level, photoelectrical coupler V9 can't conducting, and resistance R 5, triode V12, resistance R 6, capacitor C 2 constitute balanced loops, the emitter conducting of triode V12, make signal code generation effect on resistance R 6 in a distant place, thereby keep overall energy balance.
3, feedback loop: the contact FBA that detects input interface (16) at feed, the electric feed signal of last incoming transport high pressure 660V respectively of FBB and 1140V/50Hz, this signal is through resistance R 8, the R9 step-down, then through the heap QD rectifying and wave-filtering of passing a bridge, arrive photoelectrical coupler V10, the V10 conducting, electric feed signal enters by triode V13, resistance R 12, R7, the feedback amplifying return circuit that capacitor C 8 constitutes, the emitter conducting of triode V13, cause the voltage of resistance R 13 and resistance R 10 point of interfaces to become low level, triode V14 becomes and ends, at this moment, V7 is bright for the feedback signal indicator light, simultaneously in the feedback terminal of binding post (10), can detect low level, prove at present by electric feed signal; If there is not electric feed signal, photoelectrical coupler V10 can't conducting, feedback amplifier can't the generation effect, the voltage of resistance R 13 and resistance R 10 point of interfaces is high level, the conducting of triode V14 emitter, green indicator light V7 should go out, and can detect high level simultaneously in the feedback terminal of binding post (10), proves no electric feed signal at present.
Claims (9)
1, the long-range breaker device of a kind of explosion-proof high-pressure feed detection type, it comprises terminal (10), the non-peace side cable (8) that shell (9), signal indicating device, output interface (15), input interface (16), intrinsic safety side inlet wire are used, it is characterized in that: wiring board (2) is a blast resistance construction, and wiring board (2) places in the shell (9); Wiring board (2) connects signal indicating device, and wiring board (2) comprises the feed checkout gear that can detect electric feed signal and the control device of the long-range outage of may command; The feed checkout gear that can detect electric feed signal connects input interface (16), and the control device of the long-range outage of may command connects output interface (15).
2, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 1, it is characterized in that: described blast resistance construction is for watering seal structure.
3, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 2 is characterized in that: the described seal structure that waters is that epoxy resin waters seal structure or insulant interstitital texture.
4, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 1, it is characterized in that: described signal indicating device is indicator light (5) or voltmeter.
5, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 1, it is characterized in that: described shell (9) is plastic casing or can, or the Stainless Steel box.
6, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 1, it is characterized in that: describedly detect the feed checkout gear of electric feed signal and the control device of the long-range outage of may command comprises, control signal indicating circuit (12), control buffer circuit (13), relay (14), feedback circuit (11), feedback isolation circuit (18) and current rectifying and wave filtering circuit (17); The input of current rectifying and wave filtering circuit (17) detects input interface (16) with feed and is connected, the output of current rectifying and wave filtering circuit (17) is electrically connected with the input of feedback isolation circuit (18), the output of feedback isolation circuit (18) is electrically connected with the input of feedback circuit (11), feedback circuit (11) is by lead-out terminal output feed, binding post (10) is electrically connected with feedback circuit (11) and control signal indicating circuit (12) respectively, the output of control signal indicating circuit (12) is electrically connected with the input of control buffer circuit (13), the output of control buffer circuit (13) is electrically connected with relay (14), and the output of relay (14) is connected with extraneous by output interface (15).
7, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 6, it is characterized in that: described feedback isolation circuit (18) is the photoelectricity coupling circuit.
8, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 6, it is characterized in that: described relay (14) is a tongue tube.
9, the long-range breaker device of explosion-proof high-pressure feed detection type according to claim 1, it is characterized in that: shell (9) is provided with transparent protective window (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023443 CN2722570Y (en) | 2004-06-07 | 2004-06-07 | Explosive-proof feed detecting long-distance disconnector with high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023443 CN2722570Y (en) | 2004-06-07 | 2004-06-07 | Explosive-proof feed detecting long-distance disconnector with high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722570Y true CN2722570Y (en) | 2005-08-31 |
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ID=35012938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023443 Expired - Fee Related CN2722570Y (en) | 2004-06-07 | 2004-06-07 | Explosive-proof feed detecting long-distance disconnector with high voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722570Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410037A (en) * | 2011-08-29 | 2012-04-11 | 甘肃容和矿用设备集团有限公司 | Mine explosion-proof large-capacity equipment housing and manufacturing process thereof |
| CN102497758A (en) * | 2011-11-18 | 2012-06-13 | 郑州煤矿机械集团股份有限公司 | Mining intrinsically safe isolation coupler |
| CN105869680A (en) * | 2011-06-10 | 2016-08-17 | 库帕技术公司 | An electric enclosure structure |
| CN112881802A (en) * | 2021-01-14 | 2021-06-01 | 天地（常州）自动化股份有限公司 | Feed state detection device, control device, and detection method |
-
2004
- 2004-06-07 CN CN 200420023443 patent/CN2722570Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869680A (en) * | 2011-06-10 | 2016-08-17 | 库帕技术公司 | An electric enclosure structure |
| CN105869680B (en) * | 2011-06-10 | 2018-11-02 | 库帕技术公司 | Electricity surrounds structure |
| CN102410037A (en) * | 2011-08-29 | 2012-04-11 | 甘肃容和矿用设备集团有限公司 | Mine explosion-proof large-capacity equipment housing and manufacturing process thereof |
| CN102497758A (en) * | 2011-11-18 | 2012-06-13 | 郑州煤矿机械集团股份有限公司 | Mining intrinsically safe isolation coupler |
| CN112881802A (en) * | 2021-01-14 | 2021-06-01 | 天地（常州）自动化股份有限公司 | Feed state detection device, control device, and detection method |
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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: 20050831 Termination date: 20120607 |