CN213072106U - Surge protector failure indication and alarm device circuit - Google Patents
Surge protector failure indication and alarm device circuit Download PDFInfo
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- CN213072106U CN213072106U CN202021800492.XU CN202021800492U CN213072106U CN 213072106 U CN213072106 U CN 213072106U CN 202021800492 U CN202021800492 U CN 202021800492U CN 213072106 U CN213072106 U CN 213072106U
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Abstract
The utility model discloses a surge protector inefficacy is instructed and alarm device circuit, a serial communication port, including surge bleeder circuit, LED indicating circuit and remote signalling warning circuit, surge bleeder circuit's quantity, LED indicating circuit's quantity all are the same with the quantity sum of live wire and zero line, and each line in live wire and the zero line connects gradually a surge bleeder circuit and a LED indicating circuit, and all LED indicating circuit connect a remote signalling warning circuit. The utility model discloses a circuit is simple, the mode of status indication comprehensive, LED lamp is more convenient and directly perceived. Not only simplifies the field operation process, but also reduces the requirements on field installation personnel.
Description
Technical Field
The utility model relates to a surge protector inefficacy is gathered and display device, especially relates to a surge protector inefficacy is instructed and alarm device circuit.
Background
With the wider application of surge protection device products, the indication of the failure of the surge protection device is required to be more and more intuitive, and the surge protection device cannot meet the existing field observation mode, and the state indication and alarm requirements are more accurate and comprehensive.
At present, whether the surge protector fails or not is generally observed in the market in a small-window mode, red and green are greatly influenced by light rays in the small window, and the surge protector is difficult to identify in a power distribution cabinet and greatly influences on-site observation; the failure warning mode of the surge protector is a mode of enabling the small microswitch to act by bouncing off the beryllium bronze elastic sheet, and the beryllium bronze elastic sheet is often adhered and is not easy to be completely separated, so that accurate failure information of the surge protector cannot be provided for a user, and serious economic loss is possibly caused.
The application site of many surge protectors requires that not only the state indication is provided between the live wire and the ground PE, but also the state indication is provided between the zero wire and the ground PE; and the contact with normally open and normally closed functions is also required to adapt to different degrees of field differences.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: how to clearly and accurately identify the failure information of the surge protector.
In order to solve the technical problem, the technical scheme of the utility model a surge protector inefficacy is instructed and alarm device circuit is provided, a serial communication port, including surge bleeder circuit, LED indicating circuit and telesignalling alarm circuit, surge bleeder circuit's quantity, LED indicating circuit's quantity all is the same with the quantity sum of live wire and zero line, and a surge bleeder circuit and a LED indicating circuit are connected gradually to each line in live wire and the zero line, and all LED indicating circuit connect a telesignalling alarm circuit.
Preferably, each of the surge discharging circuit and the LED indicating circuit includes a commonly used element, which is a front fuse and an overcurrent/overheat tripping device, one end of the front fuse is connected to one end of the overcurrent/overheat tripping device, and the other end of the front fuse is connected to a corresponding live wire or neutral wire.
Preferably, each of the surge relief circuits further comprises a surge relief element, the other end of the overcurrent/overheat tripping device is connected with the input end of the surge relief element, and the output end of the surge relief element is grounded.
Preferably, each of the LED indicating circuit and the remote signaling alarm circuit connected to the live wires includes commonly used elements, which are a rectifier diode and a current-limiting resistor, respectively, an output terminal of the over-current/over-heat trip device on each live wire is connected to an input terminal of the rectifier diode, and an output terminal of the rectifier diode is connected to one end of the current-limiting resistor; the LED indicating circuit and the remote signaling warning circuit which are connected with the zero line comprise a first adjusting resistor which is used together, and the input end of the overcurrent/overheat tripping device on the zero line is connected with one end of the first adjusting resistor.
Preferably, all the LED indicating circuits connected with the live wire have the same structure, and further comprise a Light Emitting Diode (LED), the other end of the current limiting resistor is connected with the input end of the LED, and the output end of the LED is grounded; the LED indicating circuit connected with the zero line further comprises isolation diodes and Light Emitting Diodes (LEDs), the other end of the current limiting resistor on each live wire is connected with the input end of one isolation diode, the output ends of all the isolation diodes are connected with the input end of the LED on the zero line, and the output end of the LED on the zero line is connected with the other end of the first adjusting resistor.
Preferably, the remote signaling alarm circuit further comprises a logic not gate, a logic or gate, a relay, a second adjusting resistor and a freewheeling diode; the number of the logical NOT gates is the sum of the number of the live wire and the number of the zero wire, the input ends of all the logical NOT gates are respectively connected with the other ends of the current-limiting resistors on the corresponding live wire and the other ends of the first adjusting resistors on the zero wire, the output ends of all the logical NOT gates are respectively connected with the input ends of the logical OR gates, the output ends of the logical OR gates are connected with one end of the second adjusting resistors, the other ends of the second adjusting resistors are connected with one end of the relay, the other end of the relay is grounded, and two ends of the relay are connected with a freewheeling.
Preferably, the relay is provided with a passive contact with normally open and normally closed functions.
The utility model discloses a circuit is simple, the mode of status indication comprehensive, LED lamp is more convenient and directly perceived. Not only simplifies the field operation process, but also reduces the requirements on field installation personnel. Through the utility model discloses, can accurately, react surge protector's operating condition comprehensively, can not only on-the-spot audio-visual looking over, can also provide the remote signalling function for communication base station or control room.
The utility model adopts the mode of LED lamp as the local display of failure state of surge protector; and a remote signaling alarm device circuit which is used for remotely signaling the failure state of the surge protector in a relay mode. The utility model discloses not only have corresponding status indication between live wire and ground PE, the status indication that also corresponds between zero line and ground PE moreover. And a group of passive switch contacts with normally open and normally closed functions are also arranged to adapt to various application fields. When one or more surge protectors fail, the corresponding LED lamps are extinguished, and meanwhile, remote signaling can give an alarm.
Drawings
Fig. 1 is a general diagram of a surge protector failure indication and alarm device circuit;
fig. 2 is a circuit diagram of a surge bleed-off circuit;
FIG. 3 is a circuit diagram of an LED indicating circuit;
fig. 4 is a circuit diagram of a remote signaling alarm circuit.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model provides a surge protector inefficacy is instructed and alarm device circuit, is that surge protector connects when inefficacy is instructed and inefficacy alarm device circuit for whether normal, whether surge protector damages, when surge protector damages, remote signalling output sends alarm signal.
The utility model discloses a surge bleeder circuit, LED indicating circuit and remote signalling warning circuit, the quantity of surge bleeder circuit, LED indicating circuit's quantity all are the same with the quantity sum of live wire and zero line, and each line in live wire and the zero line connects gradually a surge bleeder circuit and a LED indicating circuit, and a remote signalling warning circuit is connected to all LED indicating circuit.
Each surge relief circuit and each LED indicating circuit comprise commonly used elements, namely a front fuse and an overcurrent/overheat tripping device, one end of the front fuse is connected with one end of the overcurrent/overheat tripping device, and the other end of the front fuse is connected with a corresponding live wire or zero wire.
Each surge relief circuit also comprises a surge relief element, the other end of the overcurrent/overheat tripping device is connected with the input end of the surge relief element, and the output end of the surge relief element is grounded.
Each LED indicating circuit and the remote signaling warning circuit connected with the live wires comprise commonly used elements, namely a rectifier diode and a current-limiting resistor, wherein the output end of the over-current/over-heat tripping device on each live wire is connected with the input end of the rectifier diode, and the output end of the rectifier diode is connected with one end of the current-limiting resistor; the LED indicating circuit and the remote signaling warning circuit which are connected with the zero line comprise a first adjusting resistor which is used together, and the input end of the over-current/over-heat tripping device on the zero line is connected with one end of the first adjusting resistor.
The LED indicating circuits connected with the live wire have the same structure and also comprise Light Emitting Diodes (LEDs), the other end of the current limiting resistor is connected with the input end of the LED, and the output end of the LED is grounded; the LED indicating circuit connected with the zero line further comprises isolation diodes and Light Emitting Diodes (LEDs), the other end of the current limiting resistor of each live wire is connected with the input end of one isolation diode, the output ends of all the isolation diodes are connected with the input end of the LED on the zero line, and the output end of the LED on the zero line is connected with the other end of the first adjusting resistor.
The remote signaling alarm circuit also comprises a logic NOT gate, a logic OR gate, a relay, a second adjusting resistor and a freewheeling diode; the number of the logical NOT gates is the sum of the number of the live wire and the number of the zero wire, the input ends of all the logical NOT gates are respectively connected with the other ends of the current-limiting resistors on the corresponding live wire and the other ends of the first adjusting resistors on the zero wire, the output ends of all the logical NOT gates are respectively connected with the input ends of the logical OR gates, the output ends of the logical OR gates are connected with one end of the second adjusting resistors, the other ends of the second adjusting resistors are connected with one end of the relay, the other end of the relay is grounded, and two ends of the relay are connected with a freewheeling. The relay is provided with a passive contact with normally open and normally closed functions.
Examples
The utility model discloses a circuit not only has the status indication that corresponds between live wire and ground PE, the status indication that also corresponds (LED instructs and remote signalling warning promptly) moreover between zero line and ground PE. And a group of passive switch contacts with normally open and normally closed functions are also arranged to adapt to various application fields.
The principles of the live wires L1, L2 and L3 are the same, and the working process of the surge protector failure indication and alarm device is described by taking the live wire L1 as an example, as shown in fig. 1.
As shown in fig. 2, the power line L1 pole surge relief circuit: the live wire L1 is connected with the input end of the front fuse F1, the output end of the front fuse F1 is connected with the input end of the overcurrent/overheat tripping device TH1, the output end of the overcurrent/overheat tripping device TH1 is connected with the input end of the surge relief element MOV1, and the output end of the surge relief element MOV1 is connected with the ground PE, so that a complete surge relief circuit is formed.
When there is no surge, the surge relief element MOV1 is in a high impedance state; when the surge exists, the MOV1 of the surge relief element is in a low-resistance state, and the surge current is quickly relieved; when the carrying capacity of the surge relief element MOV1 is exceeded, the over current/over temperature trip TH1 will trip, opening the surge relief circuit.
As shown in fig. 3, the LED indicating circuit for the L1 pole live line: the output end of the over-current/over-heat tripping device TH1 is connected with the input end of a rectifier diode D1, the output end of a rectifier diode D1 is connected with one end of a current-limiting resistor R1, the other end of the current-limiting resistor R1 is connected with the input end of a light-emitting diode LED1, and the output end of a light-emitting diode LED1 is grounded PE, so that a complete LED indicating circuit is formed.
When the surge relief circuit is intact, the over-current/over-temperature tripping device TH1 is closed, and the light emitting diode LED1 is bright and green, which represents that the surge relief circuit is normal; when the surge relief circuit is damaged, i.e. the over-current/over-temperature trip device TH1 is disconnected, the LED indicating circuit is powered off and the light emitting diode LED1 is turned off, indicating that the surge relief circuit is damaged.
The N-pole LED indicating circuit of the zero line: the live wires L1, L2 and L3 respectively pass through rectifier diodes D1, D2 and D3, current-limiting resistors R1, R2 and R3, isolation diodes D4, D5 and D6 and then are gathered together and then are connected to the input end of a light-emitting diode LED4, the output end of the light-emitting diode LED4 is connected to one end of a first adjusting resistor R4, and the other end of the first adjusting resistor R4 is connected to the input end of an overcurrent/overheat tripping device TH4 of the neutral wire N pole. Thus, an N-pole LED indicating circuit is formed between the L pole of the live wire and the N pole of the zero wire.
The live wires L1, L2 and L3 provide power for the N pole of the zero wire, and as long as one of the over-current/over-heat tripping devices TH1, TH2 and TH3 is not damaged, the light-emitting diode LED4 can normally display. When the over-current/over-temperature tripping device TH4 is disconnected due to fault, the LED indicating circuit is powered off, and the light-emitting diode LED4 is turned off, which represents that the surge relief circuit is damaged.
As shown in fig. 4, the remote signaling alarm circuit: the output end of the over-current/over-temperature tripping device TH1 is connected with the input end of a rectifier diode D1, the output end of a rectifier diode D1 is connected with one end of a current-limiting resistor R1, the other end of the current-limiting resistor R1 is connected with the input end of a logical NOT gate U1, the output end of a logical NOT gate U1 is connected with 1 input end of a logical OR gate U5, the output end of the logical OR gate U5 is connected with one end of a second adjusting resistor R5, the other end of the second adjusting resistor R5 is connected with the input end of a relay KA, and the output end of the relay. A freewheeling diode D7 is connected in parallel with the relay KA in the reverse direction to form a complete remote signaling alarm circuit.
When the surge leakage circuit is damaged due to faults, as long as any over-current/over-temperature tripping device is disconnected, the logic OR gate U5 is started to drive the relay KA and then output a remote signaling alarm.
Claims (7)
1. The utility model provides a surge protector failure indication and alarm device circuit, its characterized in that, includes surge bleeder circuit, LED indicating circuit and remote signalling warning circuit, and the quantity of surge bleeder circuit, the quantity of LED indicating circuit all are the same with the quantity sum of live wire and zero line, and every line in live wire and zero line connects gradually a surge bleeder circuit and an LED indicating circuit, and all LED indicating circuits connect a remote signalling warning circuit.
2. A surge protector failure indication and alarm device circuit according to claim 1, wherein each of said surge relief circuit and said LED indication circuit comprises a common component, which is a pre-fuse and an overcurrent/overheat trip device, respectively, one end of the pre-fuse is connected to one end of the overcurrent/overheat trip device, and the other end of the pre-fuse is connected to a corresponding live wire or neutral wire.
3. A surge protector failure indication and alarm device circuit according to claim 2, wherein each of said surge relief circuits further comprises a surge relief element, the other end of said overcurrent/overtemperature release being connected to the input of said surge relief element, the output of said surge relief element being connected to ground.
4. A surge protector failure indication and alarm device circuit according to claim 2, wherein each of the LED indicating circuit and the remote signaling alarm circuit connected to the live wire comprises commonly used elements, respectively, a rectifier diode and a current limiting resistor, wherein the output terminal of the overcurrent/overheat trip device on each live wire is connected to the input terminal of the rectifier diode, and the output terminal of the rectifier diode is connected to one terminal of the current limiting resistor; the LED indicating circuit and the remote signaling warning circuit which are connected with the zero line comprise a first adjusting resistor which is used together, and the input end of the overcurrent/overheat tripping device on the zero line is connected with one end of the first adjusting resistor.
5. The surge protector failure indication and alarm device circuit according to claim 4, wherein all the LED indicating circuits connected to said live wire have the same structure, and further comprising a Light Emitting Diode (LED), the other end of the current limiting resistor is connected to the input end of the LED, and the output end of the LED is grounded; the LED indicating circuit connected with the zero line further comprises isolation diodes and Light Emitting Diodes (LEDs), the other end of the current limiting resistor on each live wire is connected with the input end of one isolation diode, the output ends of all the isolation diodes are connected with the input end of the LED on the zero line, and the output end of the LED on the zero line is connected with the other end of the first adjusting resistor.
6. A surge protector failure indication and alarm device circuit according to claim 4, wherein said remote signaling alarm circuit further comprises a logical not gate, a logical OR gate, a relay, a second adjusting resistor, a freewheeling diode; the number of the logical NOT gates is the sum of the number of the live wire and the number of the zero wire, the input ends of all the logical NOT gates are respectively connected with the other ends of the current-limiting resistors on the corresponding live wire and the other ends of the first adjusting resistors on the zero wire, the output ends of all the logical NOT gates are respectively connected with the input ends of the logical OR gates, the output ends of the logical OR gates are connected with one end of the second adjusting resistors, the other ends of the second adjusting resistors are connected with one end of the relay, the other end of the relay is grounded, and two ends of the relay are connected with a freewheeling.
7. A surge protector failure indication and alarm device circuit according to claim 6, wherein said relay is provided with passive contacts for normally open and normally closed functions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020217427058 | 2020-08-19 | ||
| CN202021742705 | 2020-08-19 |
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| CN213072106U true CN213072106U (en) | 2021-04-27 |
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| CN202021800492.XU Active CN213072106U (en) | 2020-08-19 | 2020-08-25 | Surge protector failure indication and alarm device circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824104A (en) * | 2021-10-20 | 2021-12-21 | 上海电科臻和智能科技有限公司 | Intelligent backup protection integrated surge protection device |
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- 2020-08-25 CN CN202021800492.XU patent/CN213072106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824104A (en) * | 2021-10-20 | 2021-12-21 | 上海电科臻和智能科技有限公司 | Intelligent backup protection integrated surge protection device |
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