CN201774226U - Novel electricity-saving leakage detection protecting circuit - Google Patents
Novel electricity-saving leakage detection protecting circuit Download PDFInfo
- Publication number
- CN201774226U CN201774226U CN201020287413XU CN201020287413U CN201774226U CN 201774226 U CN201774226 U CN 201774226U CN 201020287413X U CN201020287413X U CN 201020287413XU CN 201020287413 U CN201020287413 U CN 201020287413U CN 201774226 U CN201774226 U CN 201774226U
- Authority
- CN
- China
- Prior art keywords
- reset
- switch
- reset button
- leakage current
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a novel electricity-saving leakage detection protecting circuit, which is characterized by further comprising at least one a circuit power supplying switch linked with a reset button. One end of the circuit power supplying switch is connected with a live wire or a zero wire at a power input end, the other end of the circuit power supplying switch is connected with a power input end of a control chip and an anode of a silicon-controlled thyristor, and both a power ground wire end of the control chip and an cathode of the silicon-controlled thyristor are connected with the live wire or the zero wire at the power input end. When the reset button is in tripping state, the circuit power supplying switch is switched off, and all components on a circuit board are electrically neutral. When the reset button is in reset state, the circuit power supplying switch is switched on, and all components on the circuit board work on live wires.
Description
Technical field
The utility model relates to a kind of attaching plug or supply socket or interior power saving, energy-saving and environmental protection type leakage current detection protection circuit of switch disconnector with creepage protection function that be installed in.
Background technology
Continuous development along with the supply socket with creepage protection function (being called for short GFCI), attaching plug, mains switch industry; people require more and more higher to supply socket, the function of attaching plug, the safety in utilization with creepage protection function, particularly export to supply socket, the attaching plug of the U.S..
Supply socket, attaching plug that the U.S. requires to export to the U.S. must have life-span stop detection, Presentation Function.Before use, supply socket, attaching plug must be from detecting, and when its end-of-life, the reset button on supply socket, the attaching plug must can not reset all the time, supply socket, attaching plug do not have power supply output, and the state of supply socket or attaching plug is shown to the user.Working properly when supply socket, attaching plug, when not having end-of-life, its reset button can reset, and power supply output is arranged, and will be shown to the user this moment with the state of supply socket or attaching plug.This makes the insider constantly be devoted to study, improves the leakage current detection protection circuit that is installed in supply socket, attaching plug, the mains switch, make its strength with better function, use safer.
In addition; for responding the whole world about low-carbon (LC), environmental protection, requirements of saving energy; the inventor finds that most in the market leakage current detection protection circuits are after the power line in its power input and the wall correctly connects; whole leakage current detection protection circuit is charged preparation, the components and parts on power supply on the circuit board.Consumed energy not only, and greatly reduce useful life of components and parts.
The utility model content
In view of the foregoing, the main purpose of the present utility model new pattern creepage that provides a kind of energy-conservation, power saving, environmental protection detects protective circuit.When reset button is in trip status, when power output end did not have power supply output, whole leakage current detection protection circuit was not charged, does not work; When reset button is in reset mode, when power output end had power supply output, whole leakage current detection protection circuit was charged, work.
Another purpose of the present utility model provides a kind of novel power saving leakage current detection protection circuit with Presentation Function.
Another purpose of the present utility model provides a kind of novel power saving leakage current detection protection circuit with life end checking function.
A purpose more of the present utility model provides a kind of novel power saving leakage current detection protection circuit that prevents the wiring error function that has.
For achieving the above object; the utility model is by the following technical solutions: a kind of novel power saving leakage current detection protection circuit; it comprise be installed in being used on the circuit board detect the induction coil of leakage current, the self-excitation coil that is used to detect the low resistance fault, control chip, controllable silicon, rectifier diode, resistance, filter capacitor, be built-in with iron core tripping coil, with the major loop switch of reset button interlock, it is characterized in that:
This leakage current detection protection circuit also comprises the circuit supply switch that at least one and reset button link, and an end of this circuit supply switch links to each other with power input live wire or zero line, and the other end links to each other with the controllable silicon anode with the power input of described control chip; The ground-side of power of described control chip all links to each other with power input zero line or live wire with the silicon controlled negative electrode;
When reset button was in trip status, described circuit supply switch disconnected, and the components and parts on the circuit board are all not charged;
When reset button is in reset mode, described circuit supply switch closure, the charged work of the components and parts on the circuit board.
This leakage current detection protection circuit also comprises analog reset switch and at least one relay indicating light that at least one and reset button link; After described relay indicating light and current-limiting resistance, arrangement diode were connected, an end was through described tripping coil, described analog reset switch and pass the described induction coil that is used to detect leakage current, the power firestreak or the zero line that are used to detect the self-excitation coil of low resistance fault link to each other; The other end links to each other with power input zero line or live wire; One end of described analog reset switch with pass power firestreak or the zero line of the described induction coil that is used to detect leakage current and link to each other with the self-excitation coil that is used to detect the low resistance fault; The other end links to each other with the controllable silicon anode with the power input of described control chip; The ground-side of power of described control chip all links to each other with power input zero line or live wire with the silicon controlled negative electrode; When reset button was in trip status, described analog reset switch was in off-state, and described relay indicating light extinguishes, and the components and parts on the circuit board are all not charged, do not work; When reset button is pressed, the moment disconnection of described analog reset switch closure, described relay indicating light is glittering; When reset button was in reset mode, described analog reset switch disconnected, described relay indicating light Chang Liang.
In preferred embodiment of the present utility model, this leakage current detection protection circuit also is provided with the indicator light of two different colours at least, and one is the indicator light that correctly powers on, and one is relay indicating light; Described two indicator lights bright or go out, the state variation of change in color and reset button is synchronous; When reset button is in trip status, have at least an indicator light bright; When reset button was in reset mode, the another indicator light was bright.
In preferred embodiment of the present utility model, this leakage current detection protection circuit also is provided with the display switch that powers on the reset button interlock; When reset button is in trip status, the described display switch closure that powers on; The indicator light that powers on is bright, and when reset button was in reset mode, the described display switch that powers on disconnected, and described relay indicating light is bright.
In another preferred embodiment of the present utility model, this leakage current detection protection circuit also is provided with the indicator light of two different colours at least, and one is the indicator light that correctly powers on, and one is relay indicating light; Described two indicator lights bright or go out, the state variation of change in color and reset button is synchronous; When reset button is in trip status, have at least an indicator light bright; When reset button was in reset mode, two indicator lights were all bright;
This leakage current detection protection circuit also be provided with the analog reset switch of reset button interlock, with the circuit supply switch of reset button interlock; When reset button was in trip status, described analog reset switch and circuit supply switch all disconnected, and power input is not powered to entire circuit; Reset button is become in the process of reset mode by trip status, and described analog reset switch changes off-state into by closure state, and the input power supply is given whole leakage current detection protection circuit power supply by the circuit supply switch closure; While major loop switch closure, the charged work of entire circuit, power output end has power supply output, and two indicator lights are all bright, and the light that the light of two kinds of colors is mixed into the third color sends.
When reset button is in trip status, have only described relay indicating light bright, reset button can't reset all the time, shows this leakage current detection protection circuit power input wiring error.
In preferred embodiment of the present utility model, have seven switches in this leakage current detection protection circuit at least, 4 major loop switches, 1 display switch that powers on, 1 analog reset switch, 1 circuit supply switch;
Described reset button is in the very first time, and the analog reset switch motion that links at least makes its closure; Described reset button drives six switch motions at least in second time, wherein five switches are closure state, and two switches are off-state.
In another preferred embodiment of the present utility model, described reset button is pressed in a flash, has two switch gearings at least, is closure state; Described reset button is resetting in a flash, has at least five switches to be driven, and is closure state, has at least two switches to change off-state into.
Description of drawings
Fig. 1 is the utility model embodiment 1 physical circuit figure;
Fig. 2 is the utility model embodiment 2 physical circuit figure;
Fig. 3 is the utility model embodiment 3 physical circuit figure;
Fig. 4 is the utility model embodiment 4 physical circuit figure;
Fig. 5 is the utility model embodiment 5 physical circuit figure;
Fig. 6 is the utility model embodiment 6 physical circuit figure.
Embodiment
As shown in Figure 1 and Figure 2, the disclosed novel power saving leakage current detection protection circuit of the utility model mainly by be installed in being used on the circuit board detect the induction coil L1 of leakage current, the self-excitation coil L2 that is used to detect the low resistance fault, control chip IC1 (model RV4145), controllable silicon V4, rectifier diode V1, filter capacitor C3, be built-in with the tripping coil SOL of iron core, the major loop K switch R-2-1 with reset button interlock, KR-2-2, KR-3-1, KR-3-2 constitute.
The live wire HOT of power input LINE, zero line WHITE pass the induction coil L1 that is used to detect leakage current, are used to detect the self-excitation coil L2 of low resistance fault through linking to each other with zero line output sleeve with the live wire output sleeve of power supply output plughole with major loop K switch R-2-1, the KR-2-2 of reset button interlock.The live wire output sleeve of power supply output plughole links to each other with live wire, the zero line of power output end LOAD through major loop K switch R-3-1, KR-3-2 with the reset button interlock again with zero line output sleeve.
The induction coil L1 that is used to detect leakage current links to each other with the detection signal input pin 1,2,3,7 of control chip IC1 with the signal output part of the self-excitation coil L2 that is used to detect the low resistance fault, and the control signal output pin 5 of control chip IC1 extremely links to each other with the control of controllable silicon V4.
As shown in Figure 1 and Figure 2, the disclosed novel power saving leakage current detection protection circuit of the utility model also comprises an analog reset K switch R-4 who links with reset button RESET, a circuit supply K switch R-2 who links with reset button RESET.
When reset button RESET was in trip status, analog reset K switch R-4 and circuit supply K switch R-2 all were in off-state.Whole leakage current detection protection circuit is not charged, does not work.
When reset button was in reset mode, analog reset K switch R-4 was in off-state, and circuit supply K switch R-2 is in closure state.By circuit supply K switch R-2 is whole leakage current detection protection circuit power supply, makes the components and parts on the circuit board charged, work.
When reset button was pressed, analog reset K switch R-4 closure disconnected again immediately immediately, and circuit supply K switch R-2 is in off-state.Analog reset K switch R-4 closure on the one hand provides working power for leakage current detection protection circuit, produces the simulation leakage current on the other hand, detects whether end-of-life of leakage current detection protection circuit.If leakage current detection protection circuit does not have end-of-life, then reset button can reset; If the leakage current detection protection circuit end-of-life, then leakage current detection protection circuit stops reset button to reset all the time.In the moment of analog reset K switch R-4 closure, behind the generation simulation leakage current, analog reset K switch R-4 disconnects immediately, and the simulation leakage current disappears.
In specific embodiment of the utility model, analog reset K switch R-4 and circuit supply K switch R-2 are two independently switches.Certainly, in order to reduce the volume of leakage current detection protection circuit, also analog reset K switch R-4 and circuit supply K switch R-2 can be made the switch that can realize above-mentioned functions, for example a single-pole double-throw switch (SPDT).
As shown in Figure 1, the anode of controllable silicon V4 through tripping coil SOL, with the analog reset K switch R-4 of reset button RESET interlock with pass the power input zero line of induction coil L1 and link to each other with self-excitation coil L2; Simultaneously, the anode of controllable silicon V4 is through tripping coil SOL, link to each other with the power input zero line with the circuit supply K switch R-2 of reset button RESET interlock.The negative electrode of controllable silicon V4 links to each other with the live wire HOT of power input LINE.
The power supply input pin 6 of control chip IC1 through resistance R 1, rectifier diode V1, tripping coil SOL, with the analog reset K switch R-4 of reset button RESET interlock with pass the power input zero line of induction coil L1 and link to each other with self-excitation coil L2; Simultaneously, the power supply input pin 6 of control chip IC1 is through resistance R 1, rectifier diode V1, tripping coil SOL, link to each other with the power input zero line with the circuit supply K switch R-2 of reset button RESET interlock.The place of working input pin 4 of control chip IC1 links to each other with the live wire HOT of power input LINE.
Because leakage current detection protection circuit power input LINE links to each other with AC power in the wall, in the embodiment shown in fig. 1, what utilize is that the negative half period of AC power makes leakage current detection protection circuit work, certainly, also can utilize the positive half cycle of AC power to make leakage current detection protection circuit work, as shown in Figure 2, the anode of controllable silicon V4 through tripping coil SOL, with the analog reset K switch R-4 of reset button RESET interlock with pass the power input live wire of induction coil L1 and link to each other with self-excitation coil L2; Simultaneously, the anode of controllable silicon V4 is through tripping coil SOL, link to each other with the power input live wire with the circuit supply K switch R-2 of reset button RESET interlock; The negative electrode of controllable silicon V4 links to each other with the zero line of power input LINE.
The power supply input pin 6 of control chip IC1 through resistance R 1, rectifier diode V1, tripping coil SOL, with the analog reset K switch R-4 of reset button RESET interlock with pass the power input live wire of induction coil L1 and link to each other with self-excitation coil L2; Simultaneously, the power supply input pin 6 of control chip IC1 is through resistance R 1, rectifier diode V1, tripping coil SOL, link to each other with the power input live wire with the circuit supply K switch R-2 of reset button RESET interlock; The place of working input pin 4 of control chip IC1 links to each other with the zero line of power input LINE.
When reset button RESET is in trip status; be in off-state with analog reset K switch R-4, the circuit supply K switch R-2 of reset button interlock; components and parts such as the control chip IC1 in the leakage current detection protection circuit, controllable silicon V4, tripping coil SOL, resistance, electric capacity are all not charged, and whole leakage current detection protection circuit is not charged, do not work.Because the utility model has been set up analog reset K switch R-4 and circuit supply K switch R-2 with the reset button interlock in circuit; make the utility model more meet the designing requirement of energy-conserving and environment-protective, power saving; and; because when leakage current detection protection circuit is not worked; components and parts such as the control chip IC1 in the circuit, controllable silicon V4, tripping coil SOL, resistance, electric capacity are all not charged; so, make components and parts more anti-aging, thereby prolonged the useful life of components and parts and entire circuit.
When reset button was pressed, analog reset K switch R-4 closure disconnected again immediately immediately, and circuit supply K switch R-2 is in off-state.Analog reset K switch R-4 closure on the one hand provides working power for leakage current detection protection circuit, produces the simulation leakage current on the other hand, detects whether end-of-life of leakage current detection protection circuit.If leakage current detection protection circuit does not have end-of-life, then reset button can reset; If the leakage current detection protection circuit end-of-life, then leakage current detection protection circuit stops reset button to reset all the time.In the moment of analog reset K switch R-4 closure, behind the generation simulation leakage current, analog reset K switch R-4 disconnects immediately, and the simulation leakage current disappears.
When reset button was in reset mode, analog reset K switch R-4 was in off-state, and circuit supply K switch R-2 is in closure state.By circuit supply K switch R-2 is the power supply of whole leakage current detection protection circuit, makes components and parts on the circuit board such as control chip IC1, controllable silicon V4, tripping coil SOL charged, work.
In order in time to react the operating state of leakage current detection protection circuit, as shown in Figure 1 and Figure 2, the utility model also comprises two display circuits, and one is the display circuit that powers on, and another is the operating state display circuit.Power on display circuit by the indicator light LED2 that powers on, constitute with power on display switch KR-6 and the current-limiting resistance R6 of reset button interlock.Power on after indicator light LED2, power on display switch KR-6 and the current-limiting resistance R6 series connection, an end links to each other with power input live wire or zero line, and the other end links to each other with power input zero line or live wire.
When reset button RESET was in trip status, the display switch KR-6 that powers on was closure state, and the indicator light LED2 that powers on is bright, and the power input that shows this leakage current detection protection circuit links to each other with power supply in the wall.When reset button RESET was in reset mode, the display switch KR-6 that powers on was off-state, and the indicator light LED2 that powers on does not work, and this moment, relay indicating light LED1 was bright, showed this leakage current detection protection circuit work, and power supply output is arranged.
If the operator mistakenly with the power firestreak in the wall, zero line with the live wire of the power output end LOAD of leakage current detection protection circuit, when zero line links to each other; because this moment, reset button RESET was in trip status; be in off-state with major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock; so; the display circuit two ends that power on are not charged; the indicator light LED2 that powers on does not work; this leakage current detection protection circuit wiring error is described, checks in time whether circuit connects correct.
As shown in Figure 1 and Figure 2, the operating state display circuit is made of relay indicating light LED1, current-limiting resistance R5, rectifier diode V2.After relay indicating light LED1, current-limiting resistance R5 and the rectifier diode V2 series connection, the one end links to each other with power input live wire or zero line; The other end through tripping coil SOL, with the analog reset K switch R-4 of reset button interlock with pass power input zero line or the live wire of induction coil L1 and link to each other with self-excitation coil L2, simultaneously, also link to each other with power input zero line or live wire through circuit supply K switch R-2 with the reset button interlock.
When reset button was in trip status, analog reset K switch R-4, circuit supply K switch R-2 all were in off-state, and the operating state display circuit is in and opens circuit, relay indicating light LED1 does not work, at this moment, the display switch KR-6 that powers on is in closure state, and the indicator light LED2 that powers on is bright.
When reset button is pushed downwards, analog reset K switch R-4 closure, the conducting of operating state display circuit, relay indicating light LED1 is once glittering, and at this moment, the display switch KR-6 that powers on still is in closure state, and the indicator light LED2 that powers on is bright.
When reset button was in reset mode, the analog reset K switch R-4 and the display switch KR-6 that powers on all were in off-state, circuit supply K switch R-2 closure, and the indicator light LED2 that powers on does not work, and relay indicating light LED1 is bright.
The utility model is by the closed or disconnection of analog reset K switch R-4, power on display switch KR-6 and circuit supply K switch R-2; make power on display circuit and operating state display circuit on-off; thereby; make the indicator light LED2 that powers on bright or do not work; relay indicating light LED1 is bright or do not work the operating state of reaction leakage current detection protection circuit.
In specific embodiment of the utility model, power on indicator light LED2 and relay indicating light LED1 are the indicator light of two kinds of different colours.
As shown in Figure 1 and Figure 2, relay indicating light LED1, current-limiting resistance R5, rectifier diode V2, tripping coil SOL, being one another in series with the analog reset K switch R-4 of reset button interlock constitutes simulation leakage current generating circuit, end of this simulation leakage current generating circuit links to each other with power input live wire or zero line, the other end with pass power input zero line or the live wire of induction coil L1 and link to each other with self-excitation coil L2.
When the reset button on supply socket or attaching plug is pressed; analog reset K switch R-4 closure with reset button RESET interlock; the zero line of power input LINE or live wire pass the self-excitation coil L2 that is used to detect the induction coil L1 of leakage current and is used to detect the low resistance fault; analog reset K switch R-4, tripping coil SOL, relay indicating light LED1, current-limiting resistance R5, rectifier diode V2 through closure link to each other with power input live wire or zero line; form the closed-loop path; produce the simulation leakage current, detect whether end-of-life of this leakage protection circuit certainly.Analog reset K switch R-4 is in the automatic disconnection again of the moment of closure, and the simulation leakage current disappears.
If leakage protection circuit does not have end-of-life; induction coil L1 then; self-excitation coil L2 can sense the leak current fault that exists in the power supply circuits; induction coil L1 then; self-excitation coil L2 can export induced signal and give control chip IC1; the 5 pin output control signal of control chip IC1; make controllable silicon V4 conducting; electromagnetism latching device action in supply socket or the attaching plug; reset button can reset; circuit supply K switch R-2 with the reset button interlock; major loop K switch R-2-1; KR-2-2; KR-3-1; the KR-3-2 closure; earth leakage protective socket; or plug; or the power output end of switch has power supply output; the indicator light LED2 that powers on extinguishes; relay indicating light LED1 is bright; represent that all are normal, promptly finish the whether detection certainly of end-of-life of leakage current detection protection circuit.If leakage current detection protection circuit end-of-life; then the electromagnetism latching device in supply socket or the attaching plug is failure to actuate; all the time stop reset button to reset; all the time disconnect with circuit supply K switch R-2, major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button interlock; the indicator light LED2 that powers on can not be extinguished all the time; relay indicating light LED1 does not work all the time, the non-transformer output all the time of earth leakage protective socket or plug or Switching Power Supply output.Provide the earth leakage protective of performance safety more to the user.
Fig. 3 is the utility model embodiment 3 physical circuit figure.Leakage current detection protection circuit shown in Figure 3 and Fig. 1, leakage current detection protection circuit shown in Figure 2 are basic identical.Leakage current detection protection circuit shown in Figure 3 also includes two display circuits.Article one, be the display circuit that powers on, another is the operating state display circuit.
Power on display circuit by the indicator light LED2 that powers on, constitute with power on display switch KR-6 and current-limiting resistance R6, the rectifier diode V6 of reset button interlock.Power on after indicator light LED2, the display switch KR-6 that powers on, current-limiting resistance R6, the rectifier diode V6 series connection, an end with pass the power input zero line of induction coil L1 and link to each other with self-excitation coil L2; The other end through tripping coil L3 with pass the power input live wire of induction coil L1 and link to each other with self-excitation coil L2.
The operating state display circuit is made of relay indicating light LED1, current-limiting resistance R5, anti-back-pressure diode V2.After relay indicating light LED1, current-limiting resistance R5 and the anti-back-pressure diode V2 series connection, the one end links to each other with the power output end zero line; The other end links to each other with the power output end live wire.
When reset button RESET was in trip status, the display switch KR-6 that powers on was closure state, and the indicator light LED2 that powers on is bright, and the power input that shows this leakage current detection protection circuit links to each other with power supply in the wall.When reset button is in trip status; all be in off-state with circuit supply K switch R-2 and major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock; the leakage current detection protection circuit power output end does not have power supply output; the operating state display circuit is not charged; relay indicating light LED1 does not work, and the indicator light LED2 that only powers on is bright.
When reset button RESET is in reset mode; the display switch KR-6 that powers on is off-state; circuit supply K switch R-2 closure provides power supply to entire circuit; the indicator light LED2 that powers on does not work; and major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 closure of this moment and reset button RESET interlock; power output end has power supply output, and relay indicating light LED1 is bright, and all are normal to show this leakage current detection protection circuit work.
If the operator is mistakenly with the power firestreak in the wall; the live wire of the power output end of zero line and leakage current detection protection circuit; when zero line links to each other; because this moment, reset button RESET was in trip status; circuit supply K switch R-2 and major loop K switch R-2-1 with reset button RESET interlock; KR-2-2; KR-3-1; KR-3-2 all is in off-state; so; the display circuit two ends that power on are not charged; the indicator light LED2 that powers on does not work; though relay indicating light LED1 is bright; but reset button can not reset all the time; this leakage current detection protection circuit wiring error is described, checks in time whether circuit connects correct.
Fig. 4 is the utility model embodiment 4 physical circuit figure.The operation principle of leakage current detection protection circuit shown in Figure 4 and leakage current detection protection circuit shown in Figure 3 is identical, and circuit is basic identical.Leakage current detection protection circuit shown in Figure 4 is with the difference of leakage current detection protection circuit shown in Figure 3: an end of the display circuit that powers on of leakage current detection protection circuit shown in Figure 4 through rectifier diode V1, tripping coil SOL with pass the power input live wire of induction coil L1 and link to each other with self-excitation coil L2, the other end links to each other with the working power pin 6 of control chip IC1 through resistance R 1; The place of working pin 4 of control chip IC1 with pass the power input zero line of induction coil L1 and link to each other with self-excitation coil L2.
When reset button RESET was in trip status, the display circuit that powers on was charged, and the indicator light LED2 that powers on is bright, and the power input that shows this leakage current detection protection circuit links to each other with power supply in the wall.When reset button is in trip status; all be in off-state with circuit supply K switch R-2 and major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock; the leakage current detection protection circuit power output end does not have power supply output; the operating state display circuit is not charged; relay indicating light LED1 does not work, and the indicator light LED2 that only powers on is bright.
When reset button RESET was in reset mode, the display circuit that powers on was still charged, and the indicator light LED2 that powers on is still bright.When reset button is in reset mode; all be in closure state with circuit supply K switch R-2 and major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock; the leakage current detection protection circuit power output end has power supply output; the operating state display circuit is charged; relay indicating light LED1 is also bright; show this leakage current detection protection circuit work, all are normal.
In specific embodiment of the utility model, power on indicator light LED2 and relay indicating light LED1 are the indicator light of different colours, and they are by the output of light lead pipe, when LED1 and LED2 are all luminous, become the third color light through the mixing of light lead pipe.
If the operator is mistakenly with the power firestreak in the wall; the live wire of the power output end of zero line and leakage current detection protection circuit; when zero line links to each other; because this moment, reset button RESET was in trip status; circuit supply K switch R-2 with reset button RESET interlock; major loop K switch R-2-1; KR-2-2; KR-3-1; KR-3-2 is in off-state; so; the display circuit two ends that power on are not charged; the indicator light LED2 that powers on does not work; the LED1 that is connected on output lights; but reset button RESET can not reset all the time; this leakage current detection protection circuit wiring error is described, checks in time whether circuit connects correct.
Fig. 5 is the utility model embodiment 5 physical circuit figure.The operation principle of leakage current detection protection circuit shown in Figure 5 and Fig. 1, leakage current detection protection circuit shown in Figure 2 is identical, and circuit is basic identical.When reset button RESET is in trip status; be in off-state with analog reset K switch R-4, the circuit supply K switch R-2 of reset button interlock; components and parts such as the control chip IC1 in the leakage current detection protection circuit, controllable silicon V4, tripping coil SOL, resistance, electric capacity are all not charged, and whole leakage current detection protection circuit is not charged, do not work.When reset button was pressed, the analog reset K switch R-4 of combination and KR-1 closure disconnected again immediately immediately, and circuit supply K switch R-2 is in off-state.Analog reset K switch R-4 and KR-1 closure on the one hand provide working power for leakage current detection protection circuit, produce the simulation leakage current on the other hand, detect whether end-of-life of leakage current detection protection circuit.If leakage current detection protection circuit does not have end-of-life, then reset button can reset; If the leakage current detection protection circuit end-of-life, then leakage current detection protection circuit stops reset button to reset all the time.In the analog reset K switch R-4 of combination and the moment of KR-1 closure, behind the generation simulation leakage current, the analog reset K switch R-4 and the KR-1 of combination disconnect immediately, and the simulation leakage current disappears.When reset button was in reset mode, the analog reset K switch R-4 and the KR-1 of combination were in off-state, and circuit supply K switch R-2 is in closure state.By circuit supply K switch R-2 is the power supply of whole leakage current detection protection circuit, makes components and parts on the circuit board such as control chip IC1, controllable silicon V4, tripping coil SOL charged, work.
Leakage current detection protection circuit shown in Figure 5 is with the difference of Fig. 1, leakage current detection protection circuit shown in Figure 2: an end of the display circuit that powers on of leakage current detection protection circuit shown in Figure 5 through tripping coil SOL with pass the power input live wire of induction coil L1 and link to each other with self-excitation coil L2, the other end with pass the power input zero line of induction coil L1 and link to each other with self-excitation coil L2.
When reset button RESET is in trip status; analog reset K switch R-4, the KR-1 of combination are in off-state; the display circuit that powers on is charged; the indicator light LED2 that powers on is bright; relay indicating light LED1 does not work, the power input that shows this leakage current detection protection circuit with wall in power supply correctly link to each other.When reset button RESET was pressed, analog reset K switch R-4, the KR-1 of combination closure simultaneously changed off-state in a flash into, and the display circuit that powers on is still charged, and the indicator light LED2 that powers on is still bright.When reset button was in reset mode, power on indicator light LED2 and relay indicating light LED1 were bright, showed that this leakage current detection protection circuit works.
In specific embodiment of the utility model, power on indicator light LED2 and relay indicating light LED1 are the indicator light of different colours, and they are by the output of light lead pipe, when LED1 and LED2 are all luminous, become the third color light through the mixing of light lead pipe.
If the operator is mistakenly with the power firestreak in the wall; the live wire of the power output end of zero line and leakage current detection protection circuit; when zero line links to each other; because this moment, reset button RESET was in trip status; circuit supply K switch R-2 and major loop K switch R-2-1 with reset button RESET interlock; KR-2-2; KR-3-1; KR-3-2 all is in off-state; so; the display circuit two ends that power on are not charged; the relay indicating light LED1 that is connected on power output end lights; but reset button can not reset all the time; though the analog reset K switch R-4 of combination; the KR-1 closure; but there is not electric current to flow through yet; the indicator light LED2 that powers on does not work; this leakage current detection protection circuit wiring error is described, checks in time whether circuit connects correct.
Fig. 6 is the utility model embodiment 6 physical circuit figure.The operation principle of leakage current detection protection circuit shown in Figure 6 and leakage current detection protection circuit shown in Figure 5 is identical, and circuit is basic identical.When reset button RESET is in trip status; be in off-state with analog reset K switch R-4, the circuit supply K switch R-2 of reset button interlock; components and parts such as the control chip IC1 in the leakage current detection protection circuit, controllable silicon V4, tripping coil SOL, resistance, electric capacity are all not charged, and whole leakage current detection protection circuit is not charged, do not work.When reset button was pressed, the analog reset K switch R-4 of combination and KR-1 closure disconnected again immediately immediately, and circuit supply K switch R-2 is in off-state.The analog reset K switch R-4 and the KR-1 closure of combination on the one hand provide working power for leakage current detection protection circuit, produce the simulation leakage current on the other hand, detect whether end-of-life of leakage current detection protection circuit.If leakage current detection protection circuit does not have end-of-life, then reset button can reset; If the leakage current detection protection circuit end-of-life, then leakage current detection protection circuit stops reset button to reset all the time.In the analog reset K switch R-4 of combination and the moment of KR-1 closure, behind the generation simulation leakage current, analog reset K switch R-4 and KR-1 disconnect immediately, and the simulation leakage current disappears.When reset button was in reset mode, the analog reset K switch R-4 of combination was in off-state, and circuit supply K switch R-2 is in closure state.By circuit supply K switch R-2 is the power supply of whole leakage current detection protection circuit, makes components and parts on the circuit board such as control chip IC1, controllable silicon V4, tripping coil SOL charged, work.
Leakage current detection protection circuit shown in Figure 6 is with the difference of leakage current detection protection circuit shown in Figure 5: an end of the display circuit that powers on of leakage current detection protection circuit shown in Figure 6 links to each other with the power input live wire through tripping coil SOL, and the other end links to each other with the power input zero line.
When reset button RESET is in trip status; the analog reset K switch R-4 and the KR-1 of combination are in off-state; the display circuit that powers on is charged; the indicator light LED2 that powers on is bright; all be in off-state with circuit supply K switch R-2, analog reset K switch R-4, KR-1 and major loop K switch R-2-1, KR-2-2, KR-3-1, the KR-3-2 of combination of reset button interlock; relay indicating light LED1 does not work, the power input that shows this leakage current detection protection circuit with wall in power supply correctly link to each other.When reset button RESET was pressed, the analog reset K switch R-4 of combination and KR-1 closure simultaneously changed off-state in a flash into, and the display circuit that powers on is still charged, and the indicator light LED2 that powers on is still bright, and relay indicating light LED1 does not work.After reset button RESET resets; the analog reset K switch R-4 of combination and KR-1 disconnect; major loop K switch R-2-1, KR-2-2, KR-3-1, KR-3-2 and circuit supply K switch R-2 all are in closure state; the display circuit that powers on is still charged; the indicator light LED2 that powers on is still bright; this moment, relay indicating light LED1 was also bright, showed that this leakage current detection protection circuit is working properly.
In specific embodiment of the utility model, power on indicator light LED2 and relay indicating light LED1 are the indicator light of different colours, and they are by the output of light lead pipe, when LED1 and LED2 are all luminous, become the third color light through the mixing of light lead pipe.
If the operator is mistakenly with the power firestreak in the wall; the live wire of the power output end of zero line and leakage current detection protection circuit; when zero line links to each other; because this moment, reset button RESET was in trip status; circuit supply K switch R-2 and major loop K switch R-2-1 with reset button RESET interlock; KR-2-2; KR-3-1; KR-3-2 is in off-state; so; the display circuit two ends that power on are not charged; the indicator light LED2 that powers on does not work; the LED1 that is connected on output lights; but reset button can not reset all the time; this leakage current detection protection circuit wiring error is described, checks in time whether circuit connects correct.
The utility model has the advantages that:
1, after the power input of leakage current detection protection circuit and the power supply in the wall correctly connect; leakage current detection protection circuit has at least an indicator light bright; show that this leakage current detection protection circuit can operate as normal; when the leakage current detection protection circuit power output end has power supply output; have at least the indicator light of another kind of color bright, show that this leakage current detection protection circuit has power supply output.
When the operator mistakenly with the power output end of leakage current detection protection circuit when power supply in the wall links to each other, this leakage current detection protection circuit neither one indicator light is bright; But perhaps there is a bright reset button of indicator light can not reset all the time, shows this leakage current detection protection circuit wiring error.
2, because the utility model has been set up analog reset K switch R-4 and the circuit supply K switch R-2 that links with reset button in circuit.When reset button does not reset, all be in off-state with the analog reset K switch R-4 and the circuit supply K switch R-2 of reset button interlock, entire circuit is not powered, and entire circuit does not have consumed power, make the utility model more meet the designing requirement of energy-conserving and environment-protective, power saving.And, because entire circuit is not powered, do not work, components and parts such as the control chip IC1 in the circuit, controllable silicon V4, tripping coil SOL, resistance, electric capacity are all not charged, so, make components and parts more anti-aging, thereby prolonged the useful life of components and parts and entire circuit.
3, the utility model utilizes the negative half period of AC power to make power on indicator light LED2 and relay indicating light LED1 in the display circuit bright or do not work, and the state of reaction leakage current detection protection circuit has omitted full-wave rectifying circuit, makes that the utility model circuit is more succinct.
The above is specific embodiment of the utility model and the know-why used, and is any based on the equivalent transformation on the technical solutions of the utility model basis, all belongs within the utility model protection range.
Claims (8)
1. novel power saving leakage current detection protection circuit; it comprise be installed in being used on the circuit board detect the induction coil (L1) of leakage current, the self-excitation coil (L2) that is used to detect the low resistance fault, control chip (IC1), controllable silicon (V4), rectifier diode (V1), resistance (R1), filter capacitor () C3, be built-in with iron core tripping coil (SOL), with the major loop switch (KR-2-1, KR-2-2, KR-3-1, KR-3-2) of reset button interlock, it is characterized in that:
This leakage current detection protection circuit also comprises the circuit supply switch that at least one and reset button link, and an end of this circuit supply switch links to each other with power input live wire or zero line, and the other end links to each other with the controllable silicon anode with the power input of described control chip; The ground-side of power of described control chip all links to each other with power input zero line or live wire with the silicon controlled negative electrode;
When reset button was in trip status, described circuit supply switch disconnected, and the components and parts on the circuit board are all not charged;
When reset button is in reset mode, described circuit supply switch closure, the charged work of the components and parts on the circuit board.
2. novel power saving leakage current detection protection circuit according to claim 1 is characterized in that: this leakage current detection protection circuit also comprises analog reset switch and at least one relay indicating light (LED1) that at least one and reset button link;
After described relay indicating light (LED1) and current-limiting resistance (R5), arrangement diode (V2) were connected, an end was through described tripping coil, described analog reset switch (KR-4) and pass the described induction coil (L1) that is used to detect leakage current, the power firestreak or the zero line that are used to detect the self-excitation coil (L2) of low resistance fault link to each other; The other end links to each other with power input zero line or live wire;
One end of described analog reset switch (KR-4) with pass power firestreak or the zero line of the described induction coil (L1) that is used to detect leakage current and link to each other with the self-excitation coil (L2) that is used to detect the low resistance fault; The other end links to each other with the controllable silicon anode with the power input of described control chip; The ground-side of power of described control chip all links to each other with power input zero line or live wire with the silicon controlled negative electrode;
When reset button was in trip status, described analog reset switch (KR-4) was in off-state, and described relay indicating light (LED1) extinguishes, and the components and parts on the circuit board are all not charged, do not work;
When reset button is pressed, the closed moment disconnection of described analog reset switch (KR-4), (LED1) is glittering for described relay indicating light;
When reset button was in reset mode, described analog reset switch (KR-4) disconnected, described relay indicating light (LED1) Chang Liang.
3. novel power saving leakage current detection protection circuit according to claim 1 and 2, it is characterized in that: this leakage current detection protection circuit also is provided with the indicator light of two different colours at least, one is the indicator light that correctly powers on (LED2), and one is relay indicating light (LED1); Described two indicator lights bright or go out, the state variation of change in color and reset button is synchronous; When reset button is in trip status, have at least an indicator light bright; When reset button was in reset mode, the another indicator light was bright.
4. novel power saving leakage current detection protection circuit according to claim 3 is characterized in that: this leakage current detection protection circuit also is provided with the display switch that powers on (KR-6) with the reset button interlock; When reset button is in trip status, the described display switch that powers on (KR-6) closure; Powering on, (LED2) is bright for indicator light, and when reset button was in reset mode, the described display switch that powers on (KR-6) disconnected, and (LED1) is bright for described relay indicating light.
5. novel power saving leakage current detection protection circuit according to claim 1 and 2 is characterized in that:
This leakage current detection protection circuit also is provided with the indicator light of two different colours at least, and one is the indicator light that correctly powers on (LED2), and one is relay indicating light (LED1); Described two indicator lights bright or go out, the state variation of change in color and reset button is synchronous; When reset button is in trip status, have at least an indicator light bright; When reset button was in reset mode, two indicator lights were all bright;
This leakage current detection protection circuit also be provided with the analog reset switch (KR-4) of reset button interlock, with the circuit supply switch (KR-2) of reset button interlock; When reset button was in trip status, described analog reset switch (KR-4) and circuit supply switch (KR-2) all disconnected, and power input is not powered to entire circuit; Reset button is become in the process of reset mode by trip status, and described analog reset switch (KR-4) changes off-state into by closure state, and the input power supply is given whole leakage current detection protection circuit power supply by circuit supply switch (KR-2) is closed; While major loop switch (KR-2-1, KR-2-2, KR-3-1, KR-3-2) closure, the charged work of entire circuit, power output end has power supply output, and two indicator lights are all bright, and the light that the light of two kinds of colors is mixed into the third color sends.
6. detect protective circuit according to claim 3 or 5 described new pattern creepages; it is characterized in that: when reset button is in trip status; have only described relay indicating light (LED1) bright, reset button can't reset all the time, shows this leakage current detection protection circuit power input wiring error.
7. new pattern creepage according to claim 6 detects protective circuit, it is characterized in that: have seven switches in this leakage current detection protection circuit at least, 4 major loop switches (KR-2-1, KR-2-2, KR-3-1, KR-3-2), 1 display switch that powers on (KR-6), 1 analog reset switch (KR-4), 1 circuit supply switch (KR-2);
Described reset button is in the very first time, and the analog reset switch (KR-4) that links at least action makes its closure; Described reset button is in second time, at least drive six switches (KR-2-1, KR-2-2, KR-3-1, KR-3-2, KR-6, KR-2) action, wherein five switches (KR-2-1, KR-2-2, KR-3-1, KR-3-2, KR-2) are closure state, and two switches (KR-6, KR-4) are off-state.
8. new pattern creepage according to claim 6 detects protective circuit, and it is characterized in that: described reset button is pressed in a flash, has two switches (KR-1, KR-4) interlock at least, is closure state; Described reset button is resetting in a flash, has at least five switches (KR-2-1, KR-2-2, KR-3-1, KR-3-2, KR-2) to be driven, and is closure state, has at least two switches (KR-4, KR-1) to change off-state into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287413XU CN201774226U (en) | 2010-03-29 | 2010-08-06 | Novel electricity-saving leakage detection protecting circuit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020146463 | 2010-03-29 | ||
| CN201020146463.6 | 2010-03-29 | ||
| CN201020287413XU CN201774226U (en) | 2010-03-29 | 2010-08-06 | Novel electricity-saving leakage detection protecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774226U true CN201774226U (en) | 2011-03-23 |
Family
ID=43754063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020287413XU Expired - Lifetime CN201774226U (en) | 2010-03-29 | 2010-08-06 | Novel electricity-saving leakage detection protecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774226U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208798A (en) * | 2010-03-29 | 2011-10-05 | 黄华道 | Novel electricity-saving protection circuit with electric leakage detection function |
| CN102377164A (en) * | 2010-08-06 | 2012-03-14 | 黄华道 | Energy-efficient leakage detection protection circuit |
| CN102780205A (en) * | 2011-05-11 | 2012-11-14 | 黄华道 | Electric leakage detecting protection circuit |
| CN102832591A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electricity leakage detecting protection circuit with function of lightning impulse resistance |
| CN102832593A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electric leakage detection protection circuit with lightning impulse preventing/resisting function |
| CN102832592A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electric leakage detection protection circuit with lightning impulse preventing/resisting function |
| CN102931633A (en) * | 2012-10-05 | 2013-02-13 | 黄松和 | Leakage protection circuit with real-time failure display function |
| CN102931632A (en) * | 2012-10-05 | 2013-02-13 | 黄松和 | Current leakage protection circuit with working status display and real-time fault display functions |
| CN103558777A (en) * | 2013-10-29 | 2014-02-05 | 郭辉 | Coal mine power supply control device capable of being stopped when not used |
-
2010
- 2010-08-06 CN CN201020287413XU patent/CN201774226U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208798A (en) * | 2010-03-29 | 2011-10-05 | 黄华道 | Novel electricity-saving protection circuit with electric leakage detection function |
| CN102208798B (en) * | 2010-03-29 | 2014-04-02 | 黄华道 | Novel electricity-saving protection circuit with electric leakage detection function |
| CN102377164A (en) * | 2010-08-06 | 2012-03-14 | 黄华道 | Energy-efficient leakage detection protection circuit |
| CN102377164B (en) * | 2010-08-06 | 2014-11-05 | 黄华道 | Energy-efficient leakage detection protection circuit |
| CN102780205A (en) * | 2011-05-11 | 2012-11-14 | 黄华道 | Electric leakage detecting protection circuit |
| CN102780206A (en) * | 2011-05-11 | 2012-11-14 | 黄华道 | Electric leakage detection protecting circuit |
| CN102780206B (en) * | 2011-05-11 | 2015-01-14 | 黄华道 | Electric leakage detection protecting circuit |
| CN102780205B (en) * | 2011-05-11 | 2015-01-14 | 黄华道 | Electric leakage detecting protection circuit |
| CN102832592A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electric leakage detection protection circuit with lightning impulse preventing/resisting function |
| CN102832592B (en) * | 2011-06-17 | 2015-10-21 | 黄华道 | There is the leakage current detection protection circuit of anti-/ lightning impulse resistant function |
| CN102832591B (en) * | 2011-06-17 | 2016-09-07 | 黄华道 | There is the leakage current detection protection circuit of lightning impulse resistant function |
| CN102832593A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electric leakage detection protection circuit with lightning impulse preventing/resisting function |
| CN102832591A (en) * | 2011-06-17 | 2012-12-19 | 黄华道 | Electricity leakage detecting protection circuit with function of lightning impulse resistance |
| CN102931632A (en) * | 2012-10-05 | 2013-02-13 | 黄松和 | Current leakage protection circuit with working status display and real-time fault display functions |
| CN102931632B (en) * | 2012-10-05 | 2015-01-14 | 黄松和 | Current leakage protection circuit with working status display and real-time fault display functions |
| CN102931633A (en) * | 2012-10-05 | 2013-02-13 | 黄松和 | Leakage protection circuit with real-time failure display function |
| CN103558777A (en) * | 2013-10-29 | 2014-02-05 | 郭辉 | Coal mine power supply control device capable of being stopped when not used |
| CN103558777B (en) * | 2013-10-29 | 2016-06-08 | 郭辉 | Namely the non-use in colliery have a power failure source control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201774226U (en) | Novel electricity-saving leakage detection protecting circuit | |
| CN102457042B (en) | Novel electricity leakage detection protection circuit | |
| CN102611071B (en) | Electric leakage detecting protecting circuit with magnetic locking mechanism | |
| CN103490377A (en) | Protection circuit for electric leakage detection | |
| CN201774227U (en) | Electric leakage detection protection circuit | |
| CN2877101Y (en) | Control circuit with displaying functions of preventing reverse connecting error and state | |
| CN101113998B (en) | Circuit for automatically detecting creepage protecting socket electrifying whether or not end of life | |
| CN102208798B (en) | Novel electricity-saving protection circuit with electric leakage detection function | |
| CN201466675U (en) | Leakage detection protection circuit | |
| CN201515205U (en) | Earth leakage checking protective circuit | |
| CN201887425U (en) | Electricity leakage detection display protection circuit | |
| CN102377164B (en) | Energy-efficient leakage detection protection circuit | |
| CN201699393U (en) | Electric leakage detection protection circuit with display function | |
| CN102332700B (en) | Anti-lightning leakage detection and protection circuit | |
| CN205542626U (en) | Circuit breaker is divided to intelligence that can freely switch manual automatic control mode | |
| CN101833066B (en) | Working state indicator of circuit breaker | |
| CN201422007Y (en) | Electric leakage inspecting protection circuit | |
| CN203617501U (en) | Special touch control type high-power power supply system for kitchen | |
| CN201887424U (en) | Novel electricity leakage protection circuit | |
| CN207183695U (en) | A kind of Intelligent extension socket | |
| CN206557573U (en) | A kind of coffee machine standby zero power consumption circuit | |
| CN205721163U (en) | Household appliance and standby circuit thereof | |
| CN206039198U (en) | Intelligence switch controller of electrified parameter detection | |
| CN204270050U (en) | A kind of intelligent controller of control and protective switching device | |
| CN102832592B (en) | There is the leakage current detection protection circuit of anti-/ lightning impulse resistant function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |