CN201515204U - Single-phase triple-pole power safety alarming circuit - Google Patents
Single-phase triple-pole power safety alarming circuit Download PDFInfo
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- CN201515204U CN201515204U CN2009201945794U CN200920194579U CN201515204U CN 201515204 U CN201515204 U CN 201515204U CN 2009201945794 U CN2009201945794 U CN 2009201945794U CN 200920194579 U CN200920194579 U CN 200920194579U CN 201515204 U CN201515204 U CN 201515204U
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Abstract
The utility model discloses a single-phase triple-pole power safety alarming circuit. The alarming circuit comprises a first light emitting diode, a second light emitting diode, a third light emitting diode and a capacitor, wherein the input end of the first light emitting diode is connected with a zero line, and the output end thereof is connected with a firing line; the output end of the second light emitting diode is connected with the firing line, and the input end thereof is connected with a ground line; the input end of the third light emitting diode is connected with the zero line, and the output end thereof is connected with the ground line; and the capacitor is connected with the third light emitting diode in parallel. The single-phase triple-pole power safety alarming circuit can detect the failure of circuits in time, monitor the safety of the circuits at any time, play a role of alarming, avoid safety accidents, and has low cost.
Description
Technical field
The utility model relates to a kind of single-phase three utmost point power safety warning circuits.
Background technology
In routine work, life, electricity brings convenience and enjoys to people, but also has many safety utilization of electric power hidden danger simultaneously.See the security incident that some cause because of undesired electricity consumption through regular meeting in news report, we often say that Electrical Safety needs to be provided safeguard by power supply department, and safety utilization of electric power then is to hold by every electric consumer oneself.In the family, common people adopts voltage test pencil to come fault in the testing circuit usually, the specialty electrician also will just can detect than complex apparatus by other, and can not find timely for faults such as electric leakage, error connections, like this, will cause danger even life security to the user at any time.When unearthed line or live wire and ground wire overlap, probably cause outer casing electrifications such as switch, equipment, in this situation, leakage switch can not trip, simultaneously because not caution or distant warning device in advance, like this, just be easy to occur electric shock and other safety accidents, therefore, provide a kind of and can detect faulty circuit at any time, play obvious warning function, and easy to install, the device that cost is low necessitates.
The utility model content
First purpose of the present utility model is for a kind of single-phase three utmost point power safety warning circuits are provided, and utilizes the utility model can in time detect fault in the circuit, and the safety of supervisory circuit serves as warning at any time, avoid the generation of security incident, and cost is low.
Second purpose of the present utility model is for a kind of single-phase three utmost point power safety caution plug is provided, utilize caution plug of the present utility model can in time detect fault in the plug circuit, the safety of supervisory circuit serves as warning at any time, avoid the generation of security incident, and cost is low.
The 3rd purpose of the present utility model is for a kind of single-phase three utmost point power safety warning jacks are provided, utilize warning jack of the present utility model can in time detect fault in the socket circuit, the safety of supervisory circuit serves as warning at any time, avoid the generation of security incident, and cost is low.
For reaching the first above-mentioned purpose, a kind of single-phase three utmost point power safety warning circuits, warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode.
Above-mentioned warning circuit, when wiring is correct, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, owing between live wire and the ground wire current potential is arranged, therefore, second light-emitting diode meeting Chang Liang is because the current potential between zero line and the ground wire is zero, therefore, the 3rd light-emitting diode can be not luminous; When not having earth connection, owing between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang is owing to form closed circuit through second, third light-emitting diode to zero line from live wire, second light-emitting diode meeting Chang Liang, because electric capacity in parallel on the 3rd light-emitting diode, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and zero line reversal connection, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, because zero line and ground wire do not have current potential, therefore, second light-emitting diode does not work, owing between live wire and the ground wire current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and ground wire reversal connection, since between ground wire and the live wire current potential is arranged, therefore, the second light-emitting diode Chang Liang, owing to do not have current potential between ground wire and the zero line, therefore, first light-emitting diode does not work, owing between live wire and the zero line current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode, and according to the working condition of three light-emitting diodes, can decision circuitry in concrete fault what is, at any time the safety of supervisory circuit, serve as warning, be convenient to keep in repair timely, prevent the generation of security incident.
As improvement, be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
First, second, third resistance and three diode VD are set
1, VD
2, VD
3, can bear a part of voltage in the circuit, play the effect of protection entire circuit; Three diode VD are set
1, VD
2, VD
3Also play the effect of rectification, prevent that electric current from playing a reversed role, make the operating state of first, second, third light-emitting diode reach best.
As improvement, described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.At the two ends of first and second light-emitting diodes parallel diode VD
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5The effect of, ' play protection first and second light-emitting diodes.
For reaching the second above-mentioned purpose, a kind of single-phase three utmost point power safety caution plug comprises shell, the first terminal, second terminal and the 3rd terminal, and described first, second is located on the shell with the 3rd terminal; Be provided with warning circuit in the described shell, described warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode; Live wire is connected with the first terminal, and zero line is connected with second terminal, and ground wire is connected with the 3rd terminal.
Above-mentioned warning circuit, when wiring is correct, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, owing between live wire and the ground wire current potential is arranged, therefore, second light-emitting diode meeting Chang Liang is because the current potential between zero line and the ground wire levels off to zero, therefore, the 3rd light-emitting diode can be not luminous; When not having earth connection, owing between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang is owing to form closed circuit through second, third light-emitting diode to zero line from live wire, second light-emitting diode meeting Chang Liang, because electric capacity in parallel on the 3rd light-emitting diode, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and zero line reversal connection, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, because zero line and ground wire do not have current potential, therefore, second light-emitting diode does not work, owing between live wire and the ground wire current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and ground wire reversal connection, since between ground wire and the live wire current potential is arranged, therefore, the second light-emitting diode Chang Liang, owing to do not have current potential between ground wire and the zero line, therefore, first light-emitting diode does not work, owing between live wire and the zero line current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode, and according to the working condition of three light-emitting diodes, can decision circuitry in concrete fault what is, at any time the safety of supervisory circuit, serve as warning, be convenient in time find and maintenance, prevent the generation of security incident.
As improvement, be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
First, second, third resistance and three diode VD are set
1, VD
2, VD
3, can bear a part of voltage in the circuit, play the effect of protection entire circuit; Three diode VD are set
1, VD
2, VD
3Also play the effect of rectification, prevent that electric current from playing a reversed role, make the operating state of first, second, third light-emitting diode reach best.
As improvement, described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.At the two ends of first and second light-emitting diodes parallel diode VD
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5, play the effect of protection first and second light-emitting diodes.
For reaching the 3rd above-mentioned purpose, a kind of single-phase three utmost point power safety warning jacks, comprise shell and first, second and the 3rd socket, first, second and the 3rd socket are located on the shell, are provided with first, second and three contact chip corresponding with first, second and the 3rd socket in the shell; Be provided with warning circuit in the described shell, described warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode; Described live wire is connected with first contact chip, and zero line is connected with second contact chip, and ground wire is connected with the 3rd contact chip.
Above-mentioned warning circuit, when wiring is correct, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, owing between live wire and the ground wire current potential is arranged, therefore, second light-emitting diode meeting Chang Liang is because the current potential between zero line and the ground wire levels off to zero, therefore, the 3rd light-emitting diode can be not luminous; When not having earth connection, owing between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang is owing to form closed circuit through second, third light-emitting diode to zero line from live wire, second light-emitting diode meeting Chang Liang, because electric capacity in parallel on the 3rd light-emitting diode, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and zero line reversal connection, since between live wire and the zero line current potential is arranged, therefore, first light-emitting diode meeting Chang Liang, because zero line and ground wire do not have current potential, therefore, second light-emitting diode does not work, owing between live wire and the ground wire current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode; When live wire and ground wire reversal connection, since between ground wire and the live wire current potential is arranged, therefore, the second light-emitting diode Chang Liang, owing to do not have current potential between ground wire and the zero line, therefore, first light-emitting diode does not work, owing between live wire and the zero line current potential is arranged, electric capacity in parallel on the 3rd light-emitting diode again, electric capacity can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode, and working condition according to three light-emitting diodes, concrete failure condition in can decision circuitry is convenient in time find and maintenance, prevents the generation of security incident.
As improvement, be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
First, second, third resistance and three diode VD are set
1, VD
2, VD
3, can bear a part of voltage in the circuit, play the effect of protection entire circuit; Three diode VD are set
1, VD
2, VD
3Also play the effect of rectification, prevent that electric current from playing a reversed role, make the operating state of first, second, third light-emitting diode reach best.
As improvement, described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.At the two ends of first and second light-emitting diodes parallel diode VD
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5, play the effect of protection first and second light-emitting diodes.
Description of drawings
Fig. 1 is warning circuit figure;
Fig. 2 is the plug construction schematic diagram;
Fig. 3 is the socket schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
First execution mode
A kind of single-phase three utmost point power safety warning circuits as shown in Figure 1 are by first light-emitting diode 1, second light-emitting diode 2, the 3rd light-emitting diode 3, electric capacity 4, first resistance 10, second resistance 11, the 3rd resistance 12 and a diode VD
1, VD
2, VD
3, VD
4, VD
5Constitute.20 connected successively first light-emitting diode 1, first resistance 10 and the diode VD from zero line 30 to live wire
1, wherein the input of first light-emitting diode 1 is connected with zero line 30, diode VD
1Output be connected with live wire 20, in the two ends parallel connection of first light-emitting diode 1 diode VD
4, diode VD
4Input be connected with zero line 30; 40 connected successively second light-emitting diode 2, second resistance 11 and the diode VD from live wire 20 to ground wire
2, wherein the output of second light-emitting diode 2 is connected with live wire 20, diode VD
2Input be connected with ground wire 40, in the two ends parallel connection of second light-emitting diode 2 diode VD
5, diode VD
5Input be connected with live wire 20; The 40 diode VD that connected successively from zero line 30 to ground wire
3With the 3rd resistance 12, wherein diode VD
3Input be connected with zero line 30.
Above-mentioned warning circuit, when wiring is correct, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, owing between live wire 20 and the ground wire 40 current potential is arranged, therefore, second light-emitting diode, 2 meeting Chang Liang are because the current potential between zero line 30 and the ground wire 40 is zero, therefore, the 3rd light-emitting diode 3 can be not luminous; When not having earth connection, owing between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang is owing to form closed circuits through second, third light-emitting diode to zero line 30 from live wire 20, second light-emitting diode, 2 meeting Chang Liang, because electric capacity 4 in parallel on the 3rd light-emitting diode 3, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and zero line 30 reversal connections, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, because zero line 30 and ground wire 40 do not have current potential, therefore, second light-emitting diode 2 does not work, owing between live wire 20 and the ground wire 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and ground wire 40 reversal connections, since between ground wire 40 and the live wire 20 current potential is arranged, therefore, second light-emitting diode, 2 Chang Liang, owing to do not have current potential between ground wire 40 and the zero line 30, therefore, first light-emitting diode 1 does not work, owing between live wire 20 and the zero line 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode 3, and according to the working condition of three light-emitting diodes, can decision circuitry in concrete failure condition, at any time the safety of supervisory circuit, serve as warning, be convenient in time find and maintenance, prevent the generation of security incident.First resistance 10, second resistance 11 and the 3rd resistance 12 are set in circuit, can share the voltage in the circuit, play the effect of protection entire circuit.Diode VD is set in circuit
1, VD
2, VD
3, can prevent that electric current from playing a reversed role, play the effect of rectification, like this, light-emitting diode just can reach best work effect.Diode VD is set
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5, play the effect of protection first and second light-emitting diodes.
Second execution mode
Single-phase three utmost point power safety caution plug as shown in Figure 2, comprise shell 101, the first terminal 102, second terminal 103 and the 3rd terminal 104, three terminals are installed on the shell 101, be provided with warning circuit in shell 101, warning circuit is as shown in Figure 1 by first light-emitting diode 1, second light-emitting diode 2, the 3rd light-emitting diode 3, electric capacity 4, first resistance 10, second resistance 11, the 3rd resistance 12 and a diode VD
1, VD
2, VD
3, VD
4, VD
5Constitute.20 connected successively first light-emitting diode 1, first resistance 10 and the diode VD from zero line 30 to live wire
1, wherein the input of first light-emitting diode 1 is connected with zero line 30, diode VD
1Output be connected with live wire 20, in the two ends parallel connection of first light-emitting diode 1 diode VD
4, diode VD
4Input be connected with zero line 30; 40 connected successively second light-emitting diode 2, second resistance 11 and the diode VD from live wire 20 to ground wire
2, wherein the output of second light-emitting diode 2 is connected with live wire 20, diode VD
2Input be connected with ground wire 40, in the two ends parallel connection of second light-emitting diode 2 diode VD
5, diode VD
5Input be connected with live wire 20; The 40 diode VD that connected successively from zero line 30 to ground wire
3With the 3rd resistance 12, wherein diode VD
3Input be connected with zero line 30; Live wire 20 is connected with the first terminal 102, and zero line 30 is connected with second terminal 103, and ground wire 40 is connected with the 3rd terminal 104.
Above-mentioned warning circuit, when wiring is correct, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, owing between live wire 20 and the ground wire 40 current potential is arranged, therefore, second light-emitting diode, 2 meeting Chang Liang are because the current potential between zero line 30 and the ground wire 40 is zero, therefore, the 3rd light-emitting diode 3 can be not luminous; When not having earth connection, owing between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang is owing to form closed circuits through second, third light-emitting diode to zero line 30 from live wire 20, second light-emitting diode, 2 meeting Chang Liang, because electric capacity 4 in parallel on the 3rd light-emitting diode 3, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and zero line 30 reversal connections, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, because zero line 30 and ground wire 40 do not have current potential, therefore, second light-emitting diode 2 does not work, owing between live wire 20 and the ground wire 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and ground wire 40 reversal connections, since between ground wire 40 and the live wire 20 current potential is arranged, therefore, second light-emitting diode, 2 Chang Liang, owing to do not have current potential between ground wire 40 and the zero line 30, therefore, first light-emitting diode 1 does not work, owing between live wire 20 and the zero line 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode 3, and according to the working condition of three light-emitting diodes, can decision circuitry in concrete failure condition, at any time the safety of supervisory circuit, serve as warning, be convenient in time find and maintenance, prevent the generation of security incident.First resistance 10, second resistance 11 and the 3rd resistance 12 are set in circuit, can share the voltage in the circuit, play the effect of protection entire circuit.Diode VD is set in circuit
1, VD
2, VD
3, can prevent that electric current from playing a reversed role, play the effect of rectification, like this, light-emitting diode just can reach best work effect.Diode VD is set
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5, play the effect of protection first and second light-emitting diodes.
The 3rd execution mode
Single-phase three utmost point power safety caution plug as shown in Figure 3, comprise shell 201 and first socket 202, second socket 203 and the 3rd socket 204, first, second and the 3rd socket are located on the shell 201, be provided with first, second and three contact chip corresponding in the shell 201 with first, second and the 3rd socket, be provided with warning circuit in shell 201, warning circuit is as shown in Figure 1 by first light-emitting diode 1, second light-emitting diode 2, the 3rd light-emitting diode 3, electric capacity 4, first resistance 10, second resistance 11, the 3rd resistance 12 and a diode VD
1, VD
2, VD
3, VD
4, VD
5Constitute.20 connected successively first light-emitting diode 1, first resistance 10 and the diode VD from zero line 30 to live wire
1, wherein the input of first light-emitting diode 1 is connected with zero line 30, diode VD
1Output be connected with live wire 20, in the two ends parallel connection of first light-emitting diode 1 diode VD
4, diode VD
4Input be connected with zero line 30; 40 connected successively second light-emitting diode 2, second resistance 11 and the diode VD from live wire 20 to ground wire
2, wherein the output of second light-emitting diode 2 is connected with live wire 20, diode VD
2Input be connected with ground wire 40, in the two ends parallel connection of second light-emitting diode 2 diode VD
5, diode VD
5Input be connected with live wire 20; The 40 diode VD that connected successively from zero line 30 to ground wire
3With the 3rd resistance 12, wherein diode VD
3Input be connected with zero line 30; Described live wire 20 is connected with first contact chip 202, and zero line 30 is connected with second contact chip 203, and ground wire 40 is connected with the 3rd contact chip 204.
Above-mentioned warning circuit, when wiring is correct, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, owing between live wire 20 and the ground wire 40 current potential is arranged, therefore, second light-emitting diode, 2 meeting Chang Liang are because the current potential between zero line 30 and the ground wire 40 is zero, therefore, the 3rd light-emitting diode 3 can be not luminous; When not having earth connection, owing between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang is owing to form closed circuits through second, third light-emitting diode to zero line 30 from live wire 20, second light-emitting diode, 2 meeting Chang Liang, because electric capacity 4 in parallel on the 3rd light-emitting diode 3, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and zero line 30 reversal connections, since between live wire 20 and the zero line 30 current potential is arranged, therefore, first light-emitting diode, 1 meeting Chang Liang, because zero line 30 and ground wire 40 do not have current potential, therefore, second light-emitting diode 2 does not work, owing between live wire 20 and the ground wire 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3; When live wire 20 and ground wire 40 reversal connections, since between ground wire 40 and the live wire 20 current potential is arranged, therefore, second light-emitting diode, 2 Chang Liang, owing to do not have current potential between ground wire 40 and the zero line 30, therefore, first light-emitting diode 1 does not work, owing between live wire 20 and the zero line 30 current potential is arranged, electric capacity 4 in parallel on the 3rd light-emitting diode 3 again, electric capacity 4 can charge and discharge in the circuit that exchanges, and like this, glittering situation will appear in the 3rd light-emitting diode 3.From top several situations as can be seen, no matter be at what state, as long as circuit is undesired, glittering situation will appear in the 3rd light-emitting diode 3, and according to the working condition of three light-emitting diodes, can decision circuitry in concrete failure condition, at any time the safety of supervisory circuit, serve as warning, be convenient in time find and maintenance, prevent the generation of security incident.First resistance 10, second resistance 11 and the 3rd resistance 12 are set in circuit, can share the voltage in the circuit, play the effect of protection entire circuit.Diode VD is set in circuit
1, VD
2, VD
3, can prevent that electric current from playing a reversed role, play the effect of rectification, like this, light-emitting diode just can reach best work effect.Diode VD is set
4, VD
5, when the voltage overrate at the first and second light-emitting diode two ends, will puncture and the first and second light-emitting diode diode connected in parallel VD
4, VD
5, play the effect of protection first and second light-emitting diodes.
Claims (9)
1. single-phase three utmost point power safety warning circuits, it is characterized in that: warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode.
2. single-phase three utmost point power safety warning circuits according to claim 1 is characterized in that: be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
3. single-phase three utmost point power safety warning circuits according to claim 1 and 2, it is characterized in that: described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.
4. single-phase three utmost point power safety caution plug comprises shell, the first terminal, second terminal and the 3rd terminal, and described first, second is located on the shell with the 3rd terminal; It is characterized in that: be provided with warning circuit in the described shell, described warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode; Live wire is connected with the first terminal, and zero line is connected with second terminal, and ground wire is connected with the 3rd terminal.
5. single-phase three utmost point power safety caution plug according to claim 4 is characterized in that: be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
6. according to claim 4 or 5 described single-phase three utmost point power safety caution plugs, it is characterized in that: described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.
7. single-phase three utmost point power safety warning jacks comprise shell and first, second and the 3rd socket, and first, second and the 3rd socket are located on the shell, are provided with first, second and three contact chip corresponding with first, second and the 3rd socket in the shell; It is characterized in that: be provided with warning circuit in the described shell, described warning circuit comprises first light-emitting diode, second light-emitting diode, the 3rd light-emitting diode and electric capacity; The input of described first light-emitting diode is connected with zero line, and output is connected with live wire; The output of second light-emitting diode is connected with live wire, and input is connected with ground wire; The input of the 3rd light-emitting diode is connected with zero line, and output is connected with ground wire; Described electric capacity is in parallel with the 3rd light-emitting diode; Described live wire is connected with first contact chip, and zero line is connected with second contact chip, and ground wire is connected with the 3rd contact chip.
8. single-phase three utmost point power safety warning jacks according to claim 7 is characterized in that: be in series with first resistance and diode VD between described first light-emitting diode and the live wire
1, an end of first resistance is connected with the output of first light-emitting diode, the other end and diode VD
1Input connect diode VD
1Output be connected with live wire; Be in series with second resistance and diode VD between described second light-emitting diode and the ground wire
2, an end of second resistance is connected with the input of second light-emitting diode, the other end and diode VD
2Output connect diode VD
2Input be connected with ground wire; Be in series with the 3rd resistance and diode VD between described the 3rd light-emitting diode and the zero line
3, an end of the 3rd resistance is connected with the input of the 3rd light-emitting diode, the other end and diode VD
3Output connect diode VD
3Input be connected with zero line.
9. according to claim 7 or 8 described single-phase three utmost point power safety warning jacks, it is characterized in that: described first light-emitting diode is parallel with diode VD
4, diode VD
4Output be communicated with zero line; Described second light-emitting diode is parallel with diode VD
5, diode VD
5Output be communicated with live wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201945794U CN201515204U (en) | 2009-09-11 | 2009-09-11 | Single-phase triple-pole power safety alarming circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201945794U CN201515204U (en) | 2009-09-11 | 2009-09-11 | Single-phase triple-pole power safety alarming circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201515204U true CN201515204U (en) | 2010-06-23 |
Family
ID=42486616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201945794U Expired - Fee Related CN201515204U (en) | 2009-09-11 | 2009-09-11 | Single-phase triple-pole power safety alarming circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201515204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536190A (en) * | 2018-06-08 | 2018-09-14 | 嘉兴福气多温控床有限公司 | Noval temp.-control |
-
2009
- 2009-09-11 CN CN2009201945794U patent/CN201515204U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536190A (en) * | 2018-06-08 | 2018-09-14 | 嘉兴福气多温控床有限公司 | Noval temp.-control |
| CN108536190B (en) * | 2018-06-08 | 2024-02-09 | 嘉兴福气多温控床有限公司 | Temperature controller |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20100623 Termination date: 20110911 |