CN2845263Y - The security appliance protective device - Google Patents
The security appliance protective device Download PDFInfo
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- CN2845263Y CN2845263Y CN 200520021348 CN200520021348U CN2845263Y CN 2845263 Y CN2845263 Y CN 2845263Y CN 200520021348 CN200520021348 CN 200520021348 CN 200520021348 U CN200520021348 U CN 200520021348U CN 2845263 Y CN2845263 Y CN 2845263Y
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Abstract
Security appliance protective device, the utility model relate to the security appliance resist technology, and it has solved the shortcoming that electric equipment exists on safety aspect ground wire broken string and the electrical leakage.It comprises safety monitoring circuit (1) and ON-OFF control circuit (2); safety monitoring circuit monitoring electrical equipment whether occur ground wire broken string, the phase failure, phase short circuit, electric leakage, power supply lead wire electric leakage, line voltage low excessively, excessive, the accident such as whether the zero-power line live wire is put upside down of line resistance; when above-mentioned any accident occurring; ON-OFF control circuit (2) is cut off the power supply of electrical equipment, thereby the protection human body is not subjected to the injury of above-mentioned accident.Safety monitoring circuit (1) is connected with the F2 point F1 point with the casing of electrical equipment, ON-OFF control circuit (2) is made of bistable circuit, when above-mentioned accident takes place when, safety monitoring circuit (1) output current changes, thereby bistable circuit is overturn, and then cut off the power supply of electrical equipment by relay.
Description
Technical field
The utility model relates to the security appliance resist technology, particularly a kind of security appliance protective device.The security appliance monitoring and protection comprises the protection of personal safety and device security.Safety monitoring control is called security monitoring, and security monitoring is represented with alphabetical AJK.
Background technology
Electric equipment is being brought into play important effect in industrial production, household electrical appliance have spread to huge numbers of families.For these years, because there is shortcoming in electric equipment in safeguard protection, the electrical equipment casualty accident happens occasionally, and around our life, we see the situation that electric heater is hurted sb.'s feelings of being on TV.Its reason is exactly that electric heater does not have earth connection or ground wire broken string.The loss of life or personal injury that do not have earth connection or ground wire broken string to cause, producer is irresponsible.People think that it is a kind of normal phenomenon that electrical equipment does not have earth connection or ground wire broken string to hurt sb.'s feelings.People exist fear to electrical equipment now, and the somebody dare not buy electric heater, and the somebody has bought also and dare not use.If electric equipment does not have earth connection or ground wire broken string, the earth leakage protective of electrical equipment, open phase protections etc. all will lose protective effect.Use electric equipment just to be easy to cause the damage of loss of life or personal injury and equipment in this case.
The ground wire of electric equipment is the root of electric equipment, is the root of safeguard protection.Certainly it still is not enough having only the ground wire breaking protection; because when the ground wire earth resistance is big; electrical leakage also can cause personal injury; therefore the security appliance protection also must have earth leakage protective etc.; desirable safeguard protection is the multiple safeguard protection that comprises the ground wire breaking protection; go up the problem that exists for solving the security appliance protection, reach the purpose of desirable safeguard protection, we adopt the electrical safety monitoring and protection.
The utility model content
The purpose of this utility model provides a kind of security appliance protective device, to solve the shortcoming that electric equipment exists on safety aspect ground wire broken string and the electrical leakage.It comprises safety monitoring circuit 1 and ON-OFF control circuit 2, safety monitoring circuit 1 is by resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, diode D1, voltage-stabiliser tube DW1, voltage-stabiliser tube DW2, button switch K 1 and triode BG1 form, the A point connects an end of resistance R 1, the other end of resistance R 1 connects the D point, one end of the positive pole of diode D1 and resistance R 2, the other end of resistance R 2 connects the E point, one end of capacitor C 1, the emitter of triode BG1, terminals of the negative pole of capacitor C 2 and button switch K 1, another terminals of button switch K 1 connect the F1 point, one end of F2 point and resistance R 3, the other end ground connection of resistance R 3, the negative pole of diode D1 connects the other end of capacitor C 1 and an end of resistance R 4, the other end of resistance R 4 connects the negative pole of voltage-stabiliser tube DW1, the positive pole of voltage-stabiliser tube DW1 connects the base stage of triode BG1, the collector electrode of triode BG1 connects an end of resistance R 5, the negative pole of the positive pole of capacitor C 2 and voltage-stabiliser tube DW2, the other end of resistance R 5 connects power supply+12V, ON-OFF control circuit 2 is by resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, triode BG2, triode BG3, triode BG4, diode D2, diode D3, button switch K 2 and relay are formed, the positive pole of diode D2 connects the positive pole of the voltage-stabiliser tube DW2 of safety monitoring circuit 1, the negative pole of diode D2 connects the base stage of triode BG2, one end of resistance R 7 and an end of resistance R 10, the emitter of triode BG2 connects the E point, the emitter of the emitter of triode BG3 and triode BG4, the collector electrode of triode BG2 connects an end of resistance R 6 and an end of resistance R 8, the other end of resistance R 8 connects power supply+12V, the other end of resistance R 6 connects an end of base stage and the resistance R 11 of triode BG3, the other end of resistance R 11 connects the other end and the power supply-6V of resistance R 10, the collector electrode of triode BG3 connects the other end of resistance R 7, one end of resistance R 9, a terminals of button switch K 2 and an end of resistance R 12, another termination power+12V of resistance R 9, the emitter of another wiring termination triode BG3 of button switch K 2, the base stage of another termination triode BG4 of resistance R 12, the end of the coil J of the collector connection relay of triode BG4 and the positive pole of diode D3, the other end of the coil J of relay connects negative pole and the power supply+12V of diode D3.
The security appliance monitoring and protection has that ground wire breaking protection, open phase protection, phase short-circuit protection, earth leakage protective, power supply lead wire electric leakage monitor, the line voltage monitoring, multiple functions such as line resistance monitoring, the monitoring of zero-power line live wire.
In the electric equipment utilization, when not having unsafe factor to exist, electric equipment can normally use, and when having unsafe factor, after safety monitoring circuit 1 monitors, control circuit 2 will interrupt the power supply of electric equipment.Thereby solved the problem that electric equipment exists in safeguard protection aspect ground wire broken string and the electrical leakage.
Description of drawings
Fig. 1 is the syndeton schematic diagram of the utility model and load, and Fig. 2 is the electrical block diagram of execution mode one, and Fig. 3 is the structural representation of execution mode two, and Fig. 4 to Fig. 9 is the structural representation of embodiment three.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.It is made up of safety monitoring circuit 1 and ON-OFF control circuit 2, safety monitoring circuit 1 is by resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, diode D1, voltage-stabiliser tube DW1, voltage-stabiliser tube DW2, button switch K 1 and triode BG1 form, the A point connects an end of resistance R 1, the other end of resistance R 1 connects the D point, one end of the positive pole of diode D1 and resistance R 2, the other end of resistance R 2 connects the E point, one end of capacitor C 1, the emitter of triode BG1, terminals of the negative pole of capacitor C 2 and button switch K 1, another terminals of button switch K 1 connect the F1 point, one end of F2 point and resistance R 3, the other end ground connection of resistance R 3, the negative pole of diode D1 connects the other end of capacitor C 1 and an end of resistance R 4, the other end of resistance R 4 connects the negative pole of voltage-stabiliser tube DW1, the positive pole of voltage-stabiliser tube DW1 connects the base stage of triode BG1, the collector electrode of triode BG1 connects an end of resistance R 5, the negative pole of the positive pole of capacitor C 2 and voltage-stabiliser tube DW2, the other end of resistance R 5 connects power supply+12V, ON-OFF control circuit 2 is by resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, triode BG2, triode BG3, triode BG4, diode D2, diode D3, button switch K 2 and relay are formed, the positive pole of diode D2 connects the positive pole of the voltage-stabiliser tube DW2 of safety monitoring circuit 1, the negative pole of diode D2 connects the base stage of triode BG2, one end of resistance R 7 and an end of resistance R 10, the emitter of triode BG2 connects the E point, the emitter of the emitter of triode BG3 and triode BG4, the collector electrode of triode BG2 connects an end of resistance R 6 and an end of resistance R 8, the other end of resistance R 8 connects power supply+12V, the other end of resistance R 6 connects an end of base stage and the resistance R 11 of triode BG3, the other end of resistance R 11 connects the other end and the power supply-6V of resistance R 10, the collector electrode of triode BG3 connects the other end of resistance R 7, one end of resistance R 9, a terminals of button switch K 2 and an end of resistance R 12, another termination power+12V of resistance R 9, the emitter of another wiring termination triode BG3 of button switch K 2, the base stage of another termination triode BG4 of resistance R 12, the end of the coil J of the collector connection relay of triode BG4 and the positive pole of diode D3, the other end of the coil J of relay connects negative pole and the power supply+12V of diode D3.
It also comprises power supply 5 and displaying sound circuit 4, displaying sound circuit 4 is by resistance R 15, resistance R 16, resistance R 17, triode BG5, triode BG6, voltage-stabiliser tube DW3, LED 2, acoustics circuit 4-1 and loud speaker Y form, one end of resistance R 15 connects the collector electrode of triode BG2, the other end of resistance R 15 connects the base stage of triode BG5, the collector electrode of triode BG5 connects an end of resistance R 16 and an end of resistance R 17, the positive pole of the emitter running fire optical diode LED2 of triode BG5, the negative pole of LED 2 connects the positive pole of voltage-stabiliser tube DW3 and-12 volts of voltage output ends of power supply 5, the other end of resistance R 16 connects power supply 5+12 volts of voltage output ends, the other end of resistance R 17 connects the base stage of triode BG6, the emitter of triode BG6 connects the negative pole of voltage-stabiliser tube DW3, the collector electrode of triode BG6 connects the input of acoustics circuit 4-1, and the output of acoustics circuit 4-1 connects the signal input part of loud speaker Y.
Security appliance supervising device block diagram as shown in Figure 1.
Safety monitoring circuit 1: the safe condition of monitoring electrical equipment.
ON-OFF control circuit 2: the signal that safety monitoring is partly brought is controlled decision being switched on or switched off to load power source.
Load 3: can be electric equipments such as heater, electronic component, motor.
Displaying sound circuit 4 is in order to demonstration and notice to safe condition.
Power supply 5: supply with safety monitoring circuit 1, control switch circuit 2, the 4 part direct current electricity consumptions of displaying sound circuit.
The principle of present embodiment is:
Single-phase electrical equipment security monitoring circuit is monitored sample circuit A point and is connect the 220V alternating current fire wire as shown in Figure 2, and sample circuit D point meets diode D1, E point connection circuit common port, 2 shells of meeting sb. at the airport of F1, F2, G point ground connection.Safety monitoring partly is to banish big switching circuit always, by triode BG1, and sample circuit, base circuit, collector circuit is formed.Resistance R 1, R2, R3 are again the biasing resistors of triode BG1, button K1 is as the circuit state test switch, the D1 rectifier diode, the C1 filter capacitor, the R4 filter resistance, the DW1 voltage-stabiliser tube is used for improving sampling voltage, and capacitor C 2, R5 form delay circuit, in order to the moment that prevents to start shooting because C1, R4 time-delay ends triode BG1, and the output that makes the mistake.Voltage-stabiliser tube DW2 is in order to improve BG1 collector electrode output voltage, and behind the power connection, 220V voltage extremely forms a sampling current through R1, R2 button switch K 1, R3, sample circuit D point is a high potential, add the BG1 base stage by D1, R4, DW1, BG1 conducting, the very not output of electronegative potential of its current collection.
Switching control section is by bistable circuit, switch triode BG4, and elements such as relay J are formed.Because R10 is less than R11, behind the power connection, BG2 ends, the BG3 conducting, and the BG3 current collection is 0 current potential very, by R12 BG4 is ended, and relay J is motionless, and heater can heat.BG2 ends, and its current collection very just adds to the BG5 base stage by R15, the BG5 conducting, and bright LED2 is bright for safety indication light-emitting diode, and BG6 does not work by acoustics circuit.Button K2 is the button of starting shooting again.
1, ground wire broken string
When ground wire broke, sample circuit did not have electric current, and the D point is 0 current potential, be added to the BG1 base stage by D1, R4, DW1, BG1 ends, and its collector potential is just becoming, add to the BG2 base stage by DW2, D2, make the bistable circuit upset, i.e. BG2 conducting, BG3 ends, the BG3 collector potential is just becoming, and makes the BG4 conducting by R12, the relay J adhesive, its J contact disconnects, and heater stops heating.Bistable state BG2 conducting, its collector potential are zero, add to the BG5 base stage by R15, and BG5 ends, and safety indication LED 2 extinguishes BG6 conducting, acoustics circuit work, the sound of giving notice.
2, open phase protection
The A point does not have 220V voltage when the phase failure, and the D point is 0 current potential, and the circuit working process is identical when breaking with ground wire.
3, phase short-circuit protection
When the phase short circuit, the D point is 0 current potential, and the circuit working process is identical when breaking with ground wire.
4, earth leakage protective
When electrical leakage surpassed a certain voltage, the D point was an electronegative potential, is added to the BG1 base stage by D1, R4, DW1, and BG1 collector current IC reduces, and its current collection is high potential very, and rear portion circuit working process breaks with ground wire.
The D point is 0 current potential during electric leakage 220V, and rear portion circuit working process is identical when breaking with ground wire.
5, the power supply lead wire electric leakage monitors
The damaged electric leakage of power supply lead wire root, the same earth leakage protective of circuit working process.
6, line voltage monitoring
When line voltage dropped to a certain voltage, the D point was an electronegative potential, and rear portion circuit working process is identical with earth leakage protective.
7, line resistance monitoring
The ground line resistance is during greater than a certain numerical value, and the D point is a low-voltage, the same earth leakage protective of circuit working process.
8, zero-power line live wire monitoring
The D point is 0 current potential when single-phase alternating current zero line live wire is put upside down, and the circuit working process is identical when breaking with ground wire.
Embodiment two: specify present embodiment below in conjunction with Fig. 3.Present embodiment with the difference of execution mode one is: it also comprises B mutually, C phase detecting circuit 6, the B phase, C phase detecting circuit 6 is by resistance R 101, resistance R 102, resistance R 104, resistance R 105, capacitor C 101, capacitor C 102, diode D101, voltage-stabiliser tube DW101, voltage-stabiliser tube DW102, triode BG101, resistance R 201, resistance R 202, resistance R 204, resistance R 205, capacitor C 201, capacitor C 202, diode D201, voltage-stabiliser tube DW201, voltage-stabiliser tube DW202, triode BG201, diode D30 and diode D40 form, the B point connects an end of resistance R 101, the other end of resistance R 101 connects the D point, one end of the positive pole of diode D101 and resistance R 102, the other end of resistance R 102 connects the E point, one end of capacitor C 101, the negative pole of the emitter of triode BG101 and capacitor C 102, the negative pole of diode D101 connects the other end of capacitor C 101 and an end of resistance R 104, the other end of resistance R 104 connects the negative pole of voltage-stabiliser tube DW101, the positive pole of voltage-stabiliser tube DW101 connects the base stage of triode BG101, the collector electrode of triode BG101 connects an end of resistance R 105, the negative pole of the positive pole of capacitor C 102 and voltage-stabiliser tube DW102, the other end of resistance R 105 connects power supply+12V, the positive pole of the cathode connecting diode D30 of voltage-stabiliser tube DW102, the C point connects an end of resistance R 201, the other end of resistance R 201 connects the D point, one end of the positive pole of diode D201 and resistance R 202, the other end of resistance R 202 connects the E point, one end of capacitor C 201, the negative pole of the emitter of triode BG201 and capacitor C 202, the negative pole of diode D201 connects the other end of capacitor C 201 and an end of resistance R 204, the other end of resistance R 204 connects the negative pole of voltage-stabiliser tube DW201, the positive pole of voltage-stabiliser tube DW201 connects the base stage of triode BG201, the collector electrode of triode BG201 connects an end of resistance R 205, the negative pole of the positive pole of capacitor C 202 and voltage-stabiliser tube DW202, the other end of resistance R 205 connects power supply+12V, the positive pole of the cathode connecting diode D40 of voltage-stabiliser tube DW202, the negative pole of the negative pole of the negative pole connection diode D40 of diode D30 and the diode D2 of ON-OFF control circuit 2.Present embodiment is applicable to the three-phase electric apparatus security monitoring, as three phase electric machine.
Three-phase electric apparatus security monitoring circuit as shown in Figure 3; the three phase electric machine center line shell of meeting sb. at the airport; the three-phase safe supervisory circuit has three identical safety monitoring circuit; three phase mains A phase, B phase, C connect A phase, B phase, C phase observation circuit A point, B point, C point mutually respectively, and its monitoring and protection principle is basic identical with single-phase electrical equipment security monitoring protection philosophy.When the electrical equipment standard-required was higher, sample circuit can adopt sampling circuit of pressure-stabilizing, and power supply is considered the fluctuation of line voltage, the variation of stabilized voltage power supply load, and power supply adopts D.C. regulated power supply.
With single-phase electric security monitoring circuit is example, it is bright to turn on the power switch K work indication LED 1, safety indication LED 2 is bright, press test button K1 work indication LED 1, safety indication LED 2 all extinguishes, press and restart button K2, LED 1, the bright electrical equipment of LED2 are started working.
The utility model has the advantages that:
The security appliance monitoring and protection can be applied to electric heater, power distribution cabinet, threephase motor etc. need carry out in the various electric equipments of safeguard protection, in order to guarantee the person and device security.Advantages such as the security monitoring protection has highly sensitive, and reaction speed is fast, and cost is low, and is practical.The security appliance monitoring and protection has multiple safety protection function; be a kind of new method for security protection and new safeguard protection theory; the security appliance monitoring and protection has fundamentally solved electric equipment safeguard protection problem, and the security appliance monitoring and protection will play an important role aspect the electric equipment safeguard protection.
Embodiment three: specify present embodiment below in conjunction with Fig. 4 to Fig. 9.
A kind of security appliance protective device composition form is characterized in that:
A kind of safety monitoring sample circuit composition form:
The safety monitoring sample circuit has various ways, according to the electric current in the sample circuit with have or not voltage stabilizing circuit substantially can be divided into six types.
Exchange sample circuit, as shown in Figure 4: the A point connects alternating current 220V live wire, and to the D point, the D point connects E point common port to the Z2 point through Z2 through Z1, and the E point connects button switch K 1, connects the F1 casing through K1, meets Z3 by casing F2 point, connects the G point through Z3, G point ground connection.Z1, Z2, Z3 can be electronic components such as resistance, electric capacity, inductance, transformer among the figure.
The pulsating direct current sample circuit, as shown in Figure 5: the A point connects alternating current 220V live wire, and the A point meets Z1 through D01, connects the D point through Z1, and the D point meets Z2, connects E point common port through Z2, and the E point connects button switch K 1, connects the F1 casing through K1, and F2 meets Z3 by casing, connects the G point through Z3, G point ground connection.Z1, Z2, Z3 can be electronic components such as resistance, inductance, transformer among the figure.
The direct current sample circuit, as shown in Figure 6: the A point connects alternating current 220V live wire, and the A point meets Z1 through D01, connects the D point through Z1, and the D point meets Z2, connects E point common port through Z2, and the E point connects button switch K 1, connects the F1 casing through K1, and casing F2 meets Z3, connects the G point through Z3, G point ground connection.The A point meets C01 through DO1, connects the H point through CO1, and the H point has two kinds of connections, and (1) H point connects the G point, and (2) H point connects zero-power line.Z1, Z2, Z3 are resistance among the figure.
The AC voltage-stabilizing sample circuit, as shown in Figure 7: the A point connects alternating current 220V live wire, and the A point meets Z2 through Z1, connects the D point through Z2, and the D point meets Z3, connects E point common port through Z3, connects button switch K 1 by the E point, and through the K1 shell F1 that meets sb. at the airport, F2 meets Z4 by casing, connects G point ground connection through Z4.The A point meets DW01 through Z1, meets D01 through DW01, connects the H point through D01, and the H point has two kinds of connections, and (1) H point connects the G point, and (2) H point connects zero-power line.Z1, Z2, Z3, Z4 can be electronic components such as resistance, electric capacity, inductance, transformer among the figure.
The pulsating direct current sampling circuit of pressure-stabilizing is as shown in Figure 8: the A point connects alternating current 220V live wire, and the A point meets Z1 through D02, meets Z2 through Z1, connects the D point through Z2, the D point meets Z3, connects E point common port through Z3, and the E point meets shift knob K1, connects the F1 casing through K1, F2 meets Z4 by casing, connects the G point through Z4, G point ground connection.Z1 meets DW01 simultaneously, meets D01 through DW01, connects the H point through D01.The H point has two kinds of connections, and (1) H point connects the G point, and (2) H point connects zero-power line.Z1, Z2, Z3, Z4 can be electronic components such as resistance, inductance, transformer among the figure.
The DC voltage-stabilizing sample circuit is as shown in Figure 9: the A point connects alternating current 200V live wire, and the A point meets Z1 through D02, meets Z2 through Z1, connects the D point through Z2, and the D point meets Z3, connects E point common port through Z3, and the E point meets K1, connects the F1 casing through K1, and F2 meets Z4 by casing, connects the G point through Z4, G point ground connection.Simultaneously meet C01, connect the H point, meet DW01, meet D01, connect the H point through D01 through DW01 by Z1 through C01 by D02.The H point has two kinds of connections, and (1) H point connects the G point, and (2) H point connects zero-power line.Z1, Z2, Z3, Z4 are resistance among the figure.
Claims (3)
1; the security appliance protective device; it is characterized in that it comprises safety monitoring circuit (1) and ON-OFF control circuit (2); safety monitoring circuit (1) is by resistance R 1; resistance R 2; resistance R 3; resistance R 4; resistance R 5; capacitor C 1; capacitor C 2; diode D1; voltage-stabiliser tube DW1; voltage-stabiliser tube DW2; button switch K 1 and triode BG1 form; the A point connects an end of resistance R 1; the other end of resistance R 1 connects the D point; one end of the positive pole of diode D1 and resistance R 2; the other end of resistance R 2 connects the E point; one end of capacitor C 1; the emitter of triode BG1; terminals of the negative pole of capacitor C 2 and button switch K 1; another terminals of button switch K 1 connect the F1 point; one end of F2 point and resistance R 3; the other end ground connection of resistance R 3; the negative pole of diode D1 connects the other end of capacitor C 1 and an end of resistance R 4; the other end of resistance R 4 connects the negative pole of voltage-stabiliser tube DW1; the positive pole of voltage-stabiliser tube DW1 connects the base stage of triode BG1; the collector electrode of triode BG1 connects an end of resistance R 5; the negative pole of the positive pole of capacitor C 2 and voltage-stabiliser tube DW2; the other end of resistance R 5 connects power supply+12V; ON-OFF control circuit (2) is by resistance R 6; resistance R 7; resistance R 8; resistance R 9; resistance R 10; resistance R 11; resistance R 12; triode BG2; triode BG3; triode BG4; diode D2; diode D3; button switch K 2 and relay are formed; the positive pole of diode D2 connects the positive pole of the voltage-stabiliser tube DW2 of safety monitoring circuit (1); the negative pole of diode D2 connects the base stage of triode BG2; one end of resistance R 7 and an end of resistance R 10; the emitter of triode BG2 connects the E point; the emitter of the emitter of triode BG3 and triode BG4; the collector electrode of triode BG2 connects an end of resistance R 6 and an end of resistance R 8; the other end of resistance R 8 connects power supply+12V; the other end of resistance R 6 connects an end of base stage and the resistance R 11 of triode BG3; the other end of resistance R 11 connects the other end and the power supply-6V of resistance R 10; the collector electrode of triode BG3 connects the other end of resistance R 7; one end of resistance R 9; a terminals of button switch K 2 and an end of resistance R 12; another termination power+12V of resistance R 9; the emitter of another wiring termination triode BG3 of button switch K 2; the base stage of another termination triode BG4 of resistance R 12; the end of the coil J of the collector connection relay of triode BG4 and the positive pole of diode D3, the other end of the coil J of relay connects negative pole and the power supply+12V of diode D3.
2; security appliance protective device according to claim 1; it is characterized in that it also comprises power supply (5) and displaying sound circuit (4); displaying sound circuit (4) is by resistance R 15; resistance R 16; resistance R 17; triode BG5; triode BG6; voltage-stabiliser tube DW3; LED 2; acoustics circuit (4-1) and loud speaker (Y) are formed; one end of resistance R 15 connects the collector electrode of triode BG2; the other end of resistance R 15 connects the base stage of triode BG5; the collector electrode of triode BG5 connects an end of resistance R 16 and an end of resistance R 17; the positive pole of the emitter running fire optical diode LED2 of triode BG5; the negative pole of LED 2 connects the positive pole of voltage-stabiliser tube DW3 and-12 volts of voltage output ends of power supply (5); the other end of resistance R 16 connects power supply (5)+12 volts of voltage output ends; the other end of resistance R 17 connects the base stage of triode BG6; the emitter of triode BG6 connects the negative pole of voltage-stabiliser tube DW3; the collector electrode of triode BG6 connects the input of acoustics circuit (4-1), and the output of acoustics circuit (4-1) connects the signal input part of loud speaker (Y).
3; security appliance protective device according to claim 1; it is characterized in that it also comprises the B phase; C phase detecting circuit (6); the B phase; C phase detecting circuit (6) is by resistance R 101; resistance R 102; resistance R 104; resistance R 105; capacitor C 101; capacitor C 102; diode D101; voltage-stabiliser tube DW101; voltage-stabiliser tube DW102; triode BG101; resistance R 201; resistance R 202; resistance R 204; resistance R 205; capacitor C 201; capacitor C 202; diode D201; voltage-stabiliser tube DW201; voltage-stabiliser tube DW202; triode BG201; diode D30 and diode D40 form; the B point connects an end of resistance R 101; the other end of resistance R 101 connects the D point; one end of the positive pole of diode D101 and resistance R 102; the other end of resistance R 1 02 connects the E point; one end of capacitor C 101; the negative pole of the emitter of triode BG101 and capacitor C 102; the negative pole of diode D101 connects the other end of capacitor C 101 and an end of resistance R 104; the other end of resistance R 104 connects the negative pole of voltage-stabiliser tube DW101; the positive pole of voltage-stabiliser tube DW101 connects the base stage of triode BG101; the collector electrode of triode BG101 connects an end of resistance R 105; the negative pole of the positive pole of capacitor C 102 and voltage-stabiliser tube DW102; the other end of resistance R 105 connects power supply+12V; the positive pole of the cathode connecting diode D30 of voltage-stabiliser tube DW102; the C point connects an end of resistance R 201; the other end of resistance R 201 connects the D point; one end of the positive pole of diode D201 and resistance R 202; the other end of resistance R 202 connects the E point; one end of capacitor C 201; the negative pole of the emitter of triode BG201 and capacitor C 202; the negative pole of diode D201 connects the other end of capacitor C 201 and an end of resistance R 204; the other end of resistance R 204 connects the negative pole of voltage-stabiliser tube DW201; the positive pole of voltage-stabiliser tube DW201 connects the base stage of triode BG201; the collector electrode of triode BG201 connects an end of resistance R 205; the negative pole of the positive pole of capacitor C 202 and voltage-stabiliser tube DW202; the other end of resistance R 205 connects power supply+12V; the positive pole of the cathode connecting diode D40 of voltage-stabiliser tube DW202, the negative pole of the negative pole of the negative pole connection diode D40 of diode D30 and the diode D2 of ON-OFF control circuit 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021348 CN2845263Y (en) | 2005-08-01 | 2005-08-01 | The security appliance protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021348 CN2845263Y (en) | 2005-08-01 | 2005-08-01 | The security appliance protective device |
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| Publication Number | Publication Date |
|---|---|
| CN2845263Y true CN2845263Y (en) | 2006-12-06 |
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| CN 200520021348 Expired - Fee Related CN2845263Y (en) | 2005-08-01 | 2005-08-01 | The security appliance protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403756A (en) * | 2015-11-25 | 2016-03-16 | 佛山市顺德区澳骏电子科技有限公司 | Circuit device having ground wire live detection function |
-
2005
- 2005-08-01 CN CN 200520021348 patent/CN2845263Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403756A (en) * | 2015-11-25 | 2016-03-16 | 佛山市顺德区澳骏电子科技有限公司 | Circuit device having ground wire live detection function |
| CN105403756B (en) * | 2015-11-25 | 2018-01-26 | 佛山市顺德区澳骏电子科技有限公司 | A kind of circuit arrangement with ground wire electrification detection function |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20061206 Termination date: 20090901 |