CN201167078Y - Intelligent protection switch for communication office stations - Google Patents
Intelligent protection switch for communication office stations Download PDFInfo
- Publication number
- CN201167078Y CN201167078Y CNU2008200196854U CN200820019685U CN201167078Y CN 201167078 Y CN201167078 Y CN 201167078Y CN U2008200196854 U CNU2008200196854 U CN U2008200196854U CN 200820019685 U CN200820019685 U CN 200820019685U CN 201167078 Y CN201167078 Y CN 201167078Y
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- relay
- protection switch
- intelligent protection
- pin
- transformer
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Abstract
The utility model discloses an intelligent protection switch for a communication station, and aims to provide an intelligent protection switch for the communication station which not only can cut off a power supply line when the power supply line fails, but also can automatically restore the power supply when the line fault is eliminated. The intelligent protection switch has the technical key points that the switch comprises an upper cover shell and a lower cover shell, wherein a power cut-off key, a reset key, an electric leakage test key and a function indicating lamp are arranged on the upper cover shell; a controlling main board and a transformer are arranged at the inner part of the shell; the components are respectively connected with the controlling main board; a magnetic saturated circuit breaker is further arranged at the inner part of the shell; the controlling main board is connected with the magnetic saturated circuit breaker. The protection switch is suitable for use in households, intelligent cells, PHS transmit-receive base stations, etc.
Description
Technical field
The utility model relates to a kind of emergency protective circuit device, particularly a kind of switch of intelligent protection circuit.
Background technology
Along with power load constantly increases, Electrical Safety becomes current social question of common concern, patent CN 2842831 intelligent switchs of disclosed China on the 29th have adopted microcomputerized control in November, 2006, therefore can in time detect the electric leakage that occurs in the supply line, overload, short circuit, overvoltage and fault such as under-voltage and in time faulty line is disconnected, the concurrent indication of being out of order, but just light indication is difficult for being realized by the people; When supply line's fault is eliminated, this intelligent switch can restore electricity again again, whether but this patent does not offer some clarification on that this intelligent switch can restore electricity again is automatic recovery of power supply, if under the situation that nobody guards, just in case supply line's fault appears, though above-mentioned intelligent switch can disconnect supply line timely, but when line fault is eliminated, but nobody splits to close and carries out reset operation again, so that the delay that restores electricity, and brings very big inconvenience for user's electricity consumption.
Summary of the invention
The utility model has overcome deficiency of the prior art, provide a kind of and not only when supply line's fault, cut off supply line, and when line fault is eliminated communications office site's intelligent protection switch of automatic recovery of power supply.
The utility model can be achieved through the following technical solutions: communications office site's intelligent protection switch; comprise loam cake housing and lower cover housing; the loam cake housing is provided with outage key, reset key, leak(age) test key and functional indicator light; enclosure interior is provided with control main board, magnetic saturation circuit breaker and instrument transformer, and above-mentioned parts link to each other with control main board respectively.Described control main board is provided with single-chip microcomputer and performance element, in performance element, has relay J 1, J2 and J3, the pin 11 of single-chip microcomputer and pin 12 series relay J1 and relay J 2 respectively meet power vd D, the Chang Kaiduan of the Chang Kaiduan of relay J 1 and relay J 2 links to each other with power vd D respectively, the normal-closed end of the normal-closed end of relay J 1 and relay J 2 is ground connection respectively, the common port of relay J 1 links to each other with the Chang Kaiduan of relay J 3, the common port of the common port of relay J 2 and relay J 3 links to each other with inside release in the magnetic saturation circuit breaker 10 respectively, the normal-closed end of relay J 3 links to each other with node between diode D41 and the capacitor C 24, diode D40 is connected in parallel on the two ends of relay J 3 coils, the plus earth of diode D40 simultaneously, negative electrode series resistance R14 and run indicator LED5 ground connection.Described single-chip microcomputer is the PIC16C73 single-chip microcomputer, crystal oscillator that frequency is 4MHZ in parallel between the pin 9 of PIC16C73 single-chip microcomputer and the pin 10, and pin 9 is series capacitance C20 ground connection simultaneously, and pin 10 is series capacitance C21 ground connection simultaneously.Described instrument transformer is current transformer and voltage transformer.Described instrument transformer can also be zero-sequence transformer and voltage transformer.Described instrument transformer also can be current transformer, zero-sequence transformer and voltage transformer.Also be provided with warning device in the housing, warning device links to each other with control main board.Described warning device is a buzzer.
Advantage of the present utility model is: it has adopted the magnetic saturation circuit breaker, when the fault in the supply line is eliminated, the utility model can the automatic recovery of power supply line powering, has not only guaranteed the fail safe of electricity consumption, and has removed the trouble of manual reversion powered operation from; The utility model has also adopted the PIC16C73 Single-chip Controlling, can detect in time, exactly the electric leakage that occurs in the supply line, overload, short circuit, overvoltage or under-voltage in any fault, and simultaneously open failure supply line, send sound and light alarm, avoid generation, therefore can be applicable to family, intelligent residential district, Personal Handyphone System transceiver base station etc. widely with electrification.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of lower cover housing 2 of the present utility model and Connection Element thereof;
Fig. 4 is circuit theory diagrams of the present utility model.
Embodiment
Below by the specific embodiment explanation detailed in addition to the technical solution of the utility model.
Embodiment
A kind of communications office site intelligent protection switch; comprise loam cake housing 1 and lower cover housing 2; loam cake housing 1 is provided with outage key 6, reset key 5, leak(age) test key 4 and functional indicator light 3; enclosure interior is provided with control main board 13, magnetic saturation circuit breaker 10, instrument transformer and warning device 15, and above-mentioned parts link to each other with control main board 13 respectively.Described control main board 13 is provided with single-chip microcomputer 12 and performance element.Described single-chip microcomputer 12 preferred PIC16C73 single-chip microcomputers.Described instrument transformer is made up of current transformer, zero-sequence transformer and voltage transformer.Described warning device 15 is a buzzer.
The connected mode of self operating circuit of described PIC16C73 single-chip microcomputer is as follows: crystal oscillator that frequency is 4MHZ in parallel between the pin 9 of PIC16C73 single-chip microcomputer and the pin 10, and pin 9 is series capacitance C20 ground connection simultaneously, and pin 10 is series capacitance C21 ground connection simultaneously.
Magnetic saturation circuit breaker 10 is connected in the supply line, and the live wire L in the supply line links to each other with the N terminals with the L terminals of magnetic saturation circuit breaker 10 respectively with zero line N.
In performance element, the pin 11 of PIC16C73 single-chip microcomputer and pin 12 series relay J1 and relay J 2 respectively meet power vd D, pin 13 series connection buzzer, resistance R 14 and the run indicator LED5 ground connection of PIC16C73 single-chip microcomputer, the Chang Kaiduan of the Chang Kaiduan of relay J 1 and relay J 2 links to each other with power vd D respectively, the normal-closed end of the normal-closed end of relay J 1 and relay J 2 is ground connection respectively, the common port of relay J 1 links to each other with the Chang Kaiduan of relay J 3, and the common port of the common port of relay J 2 and relay J 3 links to each other with inside release in the magnetic saturation circuit breaker 10 respectively.The normal-closed end of relay J 3 links to each other with node between diode D41 and the capacitor C 24, and diode D40 is connected in parallel on the two ends of relay J 3 coils, the plus earth of diode D40 simultaneously, and negative electrode and buzzer link to each other with node between the resistance R 14.
The connected mode of zero-sequence transformer and PIC16C73 single-chip microcomputer: capacitor C 11 and capacitor C 12 are connected in parallel on respectively between two terminals of zero-sequence transformer, the pin 3 of one of them wiring termination LM358 chip, another terminals ground connection, the pin 8 of chip LM358 meets power supply VCC, pin 2 series resistance R7 ground connection, pin 4 ground connection, pin 1 series resistance R8 links to each other with node between pin 2 and the resistance R 7, while pin 1 series diode D11 and capacitor C 13 ground connection, the terminating diode D11 of variable resistor VR1 and the node between the capacitor C 13, other end ground connection, the lead end of variable resistor VR1 links to each other with the pin 3 of PIC16C73 single-chip microcomputer.The live wire L and the zero line N of supply line pass zero-sequence transformer jointly.
When leak current fault takes place in supply line, zero-sequence transformer produces induced signal, induced signal is through the processing and amplifying of chip LM358, finally be sent in the PIC16C73 single-chip microcomputer, PIC16C73 single-chip microcomputer internal processes starts, and control leak current fault indicator light LED1 lights, the control buzzer sends warning, the Chang Kaiduan and the common port adhesive of relay J 2 simultaneously, magnetic saturation circuit breaker 10 resets, and then supply line is disconnected.
The connected mode of voltage transformer and PIC16C73 single-chip microcomputer: an end of resistance R 9 links to each other with the live wire L of supply line, terminals of another termination voltage transformer primary winding, another terminals of primary winding link to each other with the zero line N of supply line, resistance R 10 is connected in parallel between two terminals of voltage transformer secondary coil, one of them terminals series diode D13 and capacitor C 15 ground connection, resistance R 11 is connected in parallel on the two ends of capacitor C 15, and diode D13 links to each other with the pin 4 of PIC16C73 single-chip microcomputer with node between the capacitor C 15.
When the overvoltage fault takes place in supply line, voltage transformer produces induced signal, induced signal is sent in the PIC16C73 single-chip microcomputer, PIC16C73 single-chip microcomputer internal processes starts, the bright LED2 of control overvoltage malfunction indicator lamp rises, and the control buzzer sends warning, simultaneously the Chang Kaiduan and the common port adhesive of relay J 2, magnetic saturation circuit breaker 10 resets, and then supply line is disconnected.
The connected mode of current transformer and PIC16C73 single-chip microcomputer: the live wire L of supply line passes current transformer, current mutual inductor coil and four diodes and variable resistor VR2 form a diode rectification bridge circuit, capacitor C 14 is connected in parallel on the two ends of variable resistor VR2, the plus earth of voltage stabilizing didoe D12, negative electrode links to each other with variable resistor VR2 lead end, and the negative electrode of voltage stabilizing didoe D12 links to each other with the pin 5 of PIC16C73 single-chip microcomputer simultaneously.
When overload or short trouble take place in supply line, current transformer produces induced signal, induced signal is sent in the PIC16C73 single-chip microcomputer, PIC16C73 single-chip microcomputer internal processes starts, control corresponding overload fault indicator light LED3 or short trouble indicator light LED4 light, and the control buzzer sends warning, simultaneously the Chang Kaiduan and the common port adhesive of relay J 2, magnetic saturation circuit breaker 10 resets, and supply line disconnects then.
The pin 1 series resistance R22 of PIC16C73 single-chip microcomputer meets power supply VCC, while pin 1 series resistance R28 and capacitor C 22 ground connection, and an end of reset key 5 links to each other other end ground connection with the pin 1 of PIC16C73 single-chip microcomputer; The pin 6 series resistance R23 and capacitor C 23 ground connection of PIC16C73 single-chip microcomputer, pin 6 series connection outage keys 6 ground connection of PIC16C73 single-chip microcomputer simultaneously; Leakage tests key 4 series resistance R27 link to each other with supply line; The anode of output indicator LED6 meets the live wire L of supply line, and the negative electrode series resistance R26 of output indicator LED6 meets the zero line N of supply line, and output indicator LED6 is used for indicating supply line to have or not electricity consumption output; After the utility model and supply line connected, run indicator LED5 was bright.
When supply line hinder for some reason be disconnected after, whether the fault that the utility model detects in the supply line is automatically eliminated, if detecting fault eliminates, the Chang Kaiduan of PIC16C73 Single-chip Controlling relay J 3 and common port adhesive, the Chang Kaiduan of relay J 1 and common port disconnect, the Chang Kaiduan of relay J 2 and common port disconnect, and magnetic saturation circuit breaker 10 is connected the supply line that has disconnected, recovers normal power supply.
When the user need have a power failure or overhaul inside power supply circuit, can press outage key 6, communications office site's intelligent protection switch is with automatic disjunction user supply line, if power supply again, the user only need press reset key 5, can recover normal power supply.
The user can also check whether the automatic outage action of communications office site's intelligent protection switch is normal by pressing leak(age) test key 4.
The technology that the utility model is not described in detail is known technology.
Claims (8)
1, communications office site's intelligent protection switch; comprise loam cake housing (1) and lower cover housing (2); loam cake housing (1) is provided with outage key (6), reset key (5), leak(age) test key (4) and functional indicator light (3); enclosure interior is provided with control main board (13) and instrument transformer; above-mentioned parts link to each other with control main board respectively; it is characterized in that: enclosure interior also is provided with magnetic saturation circuit breaker (10), and control main board (13) links to each other with magnetic saturation circuit breaker (10).
2; communications office site according to claim 1 intelligent protection switch; it is characterized in that: described control main board (13) is provided with single-chip microcomputer (12) and performance element; in performance element, has relay (J1); (J2) reach (J3); the pin 11 of single-chip microcomputer (12) and pin 12 difference series relay (J1) and relay (J2) meet power vd D; the Chang Kaiduan of the Chang Kaiduan of relay (J1) and relay (J2) links to each other with power vd D respectively; the normal-closed end of the normal-closed end of relay (J1) and relay (J2) is ground connection respectively; the common port of relay (J1) links to each other with the Chang Kaiduan of relay (J3); the common port of the common port of relay (J2) and relay (J3) links to each other with inside release in the magnetic saturation circuit breaker (10) respectively; the normal-closed end of relay (J3) links to each other with node between diode D41 and the capacitor C 24; diode D40 is connected in parallel on the two ends of relay (J3); the plus earth of diode D40 simultaneously, negative electrode series resistance R14 and run indicator (LED5) ground connection.
3, communications office site according to claim 2 intelligent protection switch; it is characterized in that: described single-chip microcomputer (12) is the PIC16C73 single-chip microcomputer; crystal oscillator that frequency is 4MHZ in parallel between the pin 9 of PIC16C73 single-chip microcomputer and the pin 10; pin 9 is series capacitance C20 ground connection simultaneously, and pin 10 is series capacitance C21 ground connection simultaneously.
4, communications office site according to claim 1 intelligent protection switch, it is characterized in that: described instrument transformer is current transformer and voltage transformer.
5, communications office site according to claim 1 intelligent protection switch, it is characterized in that: described instrument transformer is zero-sequence transformer and voltage transformer.
6, communications office site according to claim 1 intelligent protection switch, it is characterized in that: described instrument transformer is current transformer, zero-sequence transformer and voltage transformer.
7, communications office site according to claim 1 intelligent protection switch, it is characterized in that: also be provided with warning device (15) in the housing, warning device (15) links to each other with control main board (13).
8, communications office site according to claim 7 intelligent protection switch, it is characterized in that: described warning device (15) is a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200196854U CN201167078Y (en) | 2008-04-01 | 2008-04-01 | Intelligent protection switch for communication office stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200196854U CN201167078Y (en) | 2008-04-01 | 2008-04-01 | Intelligent protection switch for communication office stations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167078Y true CN201167078Y (en) | 2008-12-17 |
Family
ID=40192469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200196854U Expired - Fee Related CN201167078Y (en) | 2008-04-01 | 2008-04-01 | Intelligent protection switch for communication office stations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167078Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241031A (en) * | 2014-06-13 | 2014-12-24 | 漳州市锦成电力设备有限公司 | Alternating-current contactor with fault display function |
| CN108987199A (en) * | 2018-08-06 | 2018-12-11 | 郑州泰恩科技有限公司 | A kind of electrical equipment switching protective device |
| CN110137039A (en) * | 2019-06-05 | 2019-08-16 | 潍坊科技学院 | A kind of electrical engineering distributor breaker of automation |
-
2008
- 2008-04-01 CN CNU2008200196854U patent/CN201167078Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241031A (en) * | 2014-06-13 | 2014-12-24 | 漳州市锦成电力设备有限公司 | Alternating-current contactor with fault display function |
| CN104241031B (en) * | 2014-06-13 | 2016-09-07 | 漳州市锦成电力设备有限公司 | The A.C. contactor that a kind of tape jam shows |
| CN108987199A (en) * | 2018-08-06 | 2018-12-11 | 郑州泰恩科技有限公司 | A kind of electrical equipment switching protective device |
| CN110137039A (en) * | 2019-06-05 | 2019-08-16 | 潍坊科技学院 | A kind of electrical engineering distributor breaker of automation |
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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: 20081217 Termination date: 20160401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |