CN105591357B - A kind of novel multiple control circuit of earth leakage - Google Patents
A kind of novel multiple control circuit of earth leakage Download PDFInfo
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- CN105591357B CN105591357B CN201410647085.2A CN201410647085A CN105591357B CN 105591357 B CN105591357 B CN 105591357B CN 201410647085 A CN201410647085 A CN 201410647085A CN 105591357 B CN105591357 B CN 105591357B
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Abstract
The invention discloses a kind of novel multiple control circuit of earth leakage, mainly include that residual current leakage protection circuit and new pattern creepage signal acquisition electricity, light conversion circuit form, it is characterised in that：When electrical equipment insulation damages generate electric leakage, PE gathering line connects respectively in electrical appliance device housings or connects heat-generating pipe acquisition signal in electric heating qi of chong channel ascending adversely massage bath water or in electric heater, and electrical equipment electric leakage signal is added to optocoupler foot A1 by PE to current-limiting resistance R9 by electric leakage signal Acquisition Circuit, electric current through Light-Emitting Diode D9 flow to diode D7 or D8 from diode D7 or D8 cathode respectively with（N6）,（L5）Connect and compose closed circuit.Its advantage：Compensate for the defect that remaining protector at present is unable to automatic trip power-off without ground wire; electrical equipment Electrical Safety is set to provide guarantee; and the accident casualties that electric appliance or line electrical leakage short circuit occurs is greatly reduced; and people are efficiently solved to electric equipment products and wall socket attaching ground wire trouble; and time and labour saving material-saving, reduce cost and improves benefit.
Description
Technical field
The present invention relates to a kind of earth leakage protective devices, especially say a kind of novel multiple control circuit of earth leakage.
Background technique
Currently, earth leakage protective device electronic type on domestic and international market, electromagnetic type is all protection of having been leaked electricity using residual current, right
Do not have residual current electric leakage will not automatic trip protection, and in daily life, industrial and mining enterprises, office block, the electricity in family
Supply socket, wall socket has ground wire socket aperture, but many no ground line vacancy or virtual earth line are not grounded, then there are also electric appliances to set
Standby that outer cover metal is required to be grounded, some are not by electric appliance casing metallic ground lines during routine use, and there are also two electric appliances
Only two lines L line and N line itself without ground wire, can residual current earth leakage protective device in the market in electrical equipment insulation damages
Leak electricity, under no Grounding residual current earth leakage protective device be will not automatic trip protection, only human body export
It can just be acted in the case where leakage current.The earth is touched at human body one, the electricity to leak electricity in water flows to the earth from human body,
Residual current earth leakage protective device can just trip and cut off the power, and electric current is easy to hurt sb.'s feelings by human body in this course, and less serious case falls
It is injured, severe one threat to life.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned deficiencies, provide a kind of novel multiple control circuit of earth leakage.
Technical solution of the present invention solves：It mainly include that residual current circuit for electric leakage protector is adopted with new pattern creepage signal
Current collection, light conversion circuit composition, it is characterised in that：Residual current circuit for electric leakage protector（11）Power input and new pattern creepage
Signal acquisition electricity, light conversion circuit（12）Power input connection.The residual current circuit for electric leakage protector（11）, mainly
By rectifier bridge（D1）,（D2）Node connects power input N2, rectifier bridge（D3）,（D4）Node series capacitance（C1）, resistance（R1）
Shunt capacitance（C1）Two termination power inputs（L1）, rectifier bridge（D1）,（D3）Connecting pin anode and diode（D6）, resistance
（R2）,（R3）Capacitor（C3）With integrated package（4）6 feet connection, rectifier bridge（D2）,（D4）Connecting pin cathode and capacitor（C2）It is negative
Pole, triode（Q2）Emitter, reset button（9）, it is silicon-controlled（Q1）Cathode, capacitor（C4）,（C3）Cathode and integrated package（4）'s
The connection of 4 feet, triode（Q2）Base stage and resistance（R6）,（R5）Connection,（R5）The other end and reset button（10）, it is silicon-controlled（Q1）
Anode, optic coupling element（6）Triggering pipe（D10）The connection of A3 foot,（D10）A4 foot and integrated package（4）5 feet connection,（R6）Separately
One end is connected to triode（Q2）Emitter and reset button（9）On node, resistance（R4）One end with it is silicon-controlled（Q1）Anode connects
It connects,（R4）The other end and resistance（R3）, integrated package（4）6 feet connection, it is silicon-controlled（Q1）Control electrode and capacitor（C4）Anode connection
Integrated package（4）5 feet connection, triode（Q2）Collector and relay coil（A5）One end connection, coil（A5）The other end with
Diode（D5）,（D6）, capacitor（C2）Anode connection, diode（D5）The other end and resistance（R11）Connection,（R11）The other end
With power control switch（K1）Normally closed point（1）Connection, while power input is through power control switch（K1）L3, N4 main line
End is across residual current transformer（3）With electrical appliance equipment（5）Power input（L5）,（N6）Connection, testing button（7）One end connects
Connect power switch（K1）Output（N4）End, other end series resistance（R8）With electrical appliance power input（L5）Connection, it is described
Residual current transformer（3）Coil（A6）One end and integrated package（4）3 feet connection,（A6）The other end and capacitor（C5）Connection
It connects, capacitor（C5）The other end and resistance（R7）Integrated package（4）1 foot connection, resistance（R7）The other end and integrated package（4）7 feet
Connection.
The described new pattern creepage signal acquisition electricity, light conversion circuit（12）Optic coupling element（6）Interior light emitting diode
（D9）Anode and resistance（R10）,（R9）Connection,（R9）The other end and PE line are connected to electrical appliance equipment（5）Metal shell or
Object in water connection, light emitting diode（D9）Cathode and it is connected to resistance（R10）, diode（D7）,（D8）On the node of anode,
Diode（D7）Cathode and electrical appliance（5）Power input（N6）Connection, diode（D8）Cathode and electrical appliance equipment（5）Electricity
Source input terminal（L5）Connection.
Fig. 2 of the control circuit of earth leakage can omit electric leakage acquisition when different occasions use, and produce product
Amplifier element, such as mutual inductor（3）, integrated package（4）, capacitor（C5）, resistance（R7）.
It is an advantage of the invention that：When compensating for current earth leakage protective device and encountering electric leakage without ground wire, electrical appliance equipment be unable to from
The defect of dynamic tripping power-off, invention novel multiple earth leakage protective device enhance the complementarity of earth leakage protective device, use electrical equipment
Electric safety provides effective guarantee, and is electrical equipment or accident casualties that line electrical leakage short circuit occurs is greatly reduced,
And people are efficiently solved to electric equipment products and wall socket installation ground line trouble, and time and labour saving material-saving, reduction cost mention
For benefit.
Detailed description of the invention
Fig. 1 novel multiple control circuit of earth leakage structural schematic diagram of the present invention
Control circuit of earth leakage Fig. 2 of the invention omits electric leakage acquisition amplifier element schematic diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings：
As shown in Figure 1, a kind of novel multiple control circuit of earth leakage, mainly includes residual current operated protective device circuit
（11）With new pattern creepage signal acquisition electricity, light conversion circuit（12）Composition, it is characterised in that residual current circuit for electric leakage protector
（11）Power input and new pattern creepage signal acquisition electricity, light conversion circuit（12）Power input connection.The residue electricity
Flow circuit for electric leakage protector（11）, mainly by rectifier bridge（D1）,（D2）Node connects power input（N2）, rectifier bridge（D3）,
（D4）Node series capacitance（C1）, resistance（R1）Shunt capacitance（C1）Two termination power inputs（L1）, rectifier bridge（D1）,（D3）
Connecting pin anode and diode（D6）, resistance（R2）,（R3）Capacitor（C3）With integrated package（4）6 feet connection, rectifier bridge（D2）,
（D4）Connecting pin cathode and capacitor（C2）Cathode, triode（Q2）Emitter, reset button（9）, it is silicon-controlled（Q1）Cathode, capacitor
（C4）,（C3）Cathode and integrated package（4）4 feet connection, triode（Q2）Base stage and resistance（R6）,（R5）Connection,（R5）It is another
End and reset button（10）, it is silicon-controlled（Q1）Anode, optic coupling element（6）Triggering pipe（D10）The connection of A3 foot,（D10）A4 foot with
Integrated package（4）5 feet connection,（R6）The other end is connected to triode（Q2）Emitter and reset button（9）On node, resistance
（R4）One end with it is silicon-controlled（Q1）Anode connection,（R4）The other end and resistance（R3）, integrated package（4）6 feet connection, it is silicon-controlled
（Q1）Control electrode and capacitor（C4）Anode connection integrated package（4）5 feet connection, triode（Q2）Collector and relay coil
（A5）One end connection, coil（A5）The other end and diode（D5）,（D6）, capacitor（C2）Anode connection, diode（D5）It is another
End and resistance（R11）Connection,（R11）The other end and power control switch（K1）Normally closed point（1）Connection, while power input
Through power control switch（K1）L3, N4 main line end pass through residual current transformer（3）With electrical appliance equipment（5）Power input
（L5）,（N6）Connection, testing button（7）One end connects power switch（K1）Output（N4）End, other end series resistance（R8）
With electrical appliance power input（L5）Connection, the residual current transformer（3）Coil（A6）One end and integrated package（4）'s
The connection of 3 feet, coil（A6）The other end and capacitor（C5）Connection, capacitor（C5）The other end and resistance（R7）Integrated package（4）1 foot connection
It connects, resistance（R7）The other end and integrated package（4）7 feet connection.
The described new pattern creepage signal acquisition electricity, light conversion circuit（12）Optic coupling element（6）Interior light emitting diode
（D9）Anode and resistance（R10）,（R9）Connection, the R9 other end and PE line are connected to electrical appliance equipment（5）Metal shell or water
Middle object connection, light emitting diode（D9）Cathode and it is connected to resistance（R10）, diode（D7）,（D8）On the node of anode, two
Pole pipe（D7）Cathode and electrical appliance（5）Power input（N6）Connection, diode（D8）Cathode and electrical appliance equipment（5）Power supply is defeated
Enter end（L5）Connection.
Fig. 2 of the control circuit of earth leakage can omit electric leakage acquisition when different occasions use, and produce product
Amplifier element, such as mutual inductor（3）, integrated package（4）, capacitor（C5）, resistance（R7）.
Its working principle：The power supply that automatically resets while power is being supplied warp（L1）,（N2）, triode（Q2）Turn-on relay fuse
（8）Automatic pick drives power control switch（K1）Normally opened closure, contact（3）,（4）End is powered, electrical appliance equipment（5）Obtain electrician
Make.When electrical appliance equipment（5）When insulation damages generate electric leakage, PE gathering line is connect respectively in electrical appliance equipment（5）Metal shell or
It connects in electric heating qi of chong channel ascending adversely massage bath water or acquires electric leakage signal in electric heater on heat-generating pipe metal shell.It is not grounded
In the case where remaining electric leakage signal be in magnet ring mutual inductor do not acquire electric leakage signal protector be will not automatic trip；And it is new
Type electric leakage signal Acquisition Circuit（12）By electrical appliance equipment（5）Electric leakage signal passes through PE wiring（A7）It is connected to current-limiting resistance（R9）
It is added to 6 foot of optic coupling element（A1）, leakage current is through optic coupling element（6）,（A2）, light emitting diode（D9）Two pole of high pressure is flowed to again
Pipe（D7）Or（D8）, from diode（D7）Or（D8）Cathode returns to power end and constitutes circuit, and at this moment leakage current makes optic coupling element（6）
Light emitting diode（D9）Shine irradiation optic coupling element（6）Triggering pipe（D10）On, manage triggering（D10）It is connected by cut-off conversion, from
And make（A4）High level is switched to by low level, it is silicon-controlled（Q1）Control electrode obtains high level, silicon-controlled（Q1）It is led by cut-off conversion
It is logical, it is silicon-controlled（Q1）Anode voltage falls to 0.7 volt, at this moment triode（Q2）By conducting conversion cut-off, relay coil（A5）
Power loss, coil core bullet go out under spring force, voltage cut-out（K1）It is converted to by closure and normally opened is disconnected electrical appliance
Equipment（5）Power supply ensure that the safety of life and property of user.
Claims (2)
1. a kind of novel multiple control circuit of earth leakage, including residual current circuit for electric leakage protector and new pattern creepage signal
Acquisition electricity, light conversion circuit composition, it is characterised in that：Residual current circuit for electric leakage protector（11）Power input and novel leakage
Electrical signal collection electricity, light conversion circuit（12）Power input connection, the residual current circuit for electric leakage protector（11）, main
It will be by rectifier bridge（D1）,（D2）Node connects power input N2, rectifier bridge（D3）,（D4）Node series capacitance（C1）, resistance
（R1）Shunt capacitance（C1）Two termination power inputs（L1）, rectifier bridge（D1）,（D3）Connecting pin anode and diode（D6）, electricity
Resistance（R2）,（R3）Capacitor（C3）With integrated package（4）6 feet connection, rectifier bridge（D2）,（D4）Connecting pin cathode and capacitor（C2）It is negative
Pole, triode（Q2）Emitter, reset button（9）, it is silicon-controlled（Q1）Cathode, capacitor（C4）,（C3）Cathode and integrated package（4）'s
The connection of 4 feet, triode（Q2）Base stage and resistance（R6）,（R5）, reset button（10）, it is silicon-controlled（Q1）Anode, optic coupling element（6）
Triggering pipe（D10）The connection of A3 foot,（D10）A4 foot and integrated package（4）5 feet connection,（R6）The other end is connected to triode
（Q2）Emitter and reset button（9）On node, resistance（R4）One end with it is silicon-controlled（Q1）Anode connection,（R4）The other end and electricity
Resistance（R3）, integrated package（4）6 feet connection, it is silicon-controlled（Q1）Control electrode and capacitor（C4）Anode connection integrated package（4）5 feet connect
It connects, triode（Q2）Collector and relay coil（A5）One end connection, coil（A5）The other end and diode（D5）,（D6）,
Capacitor（C2）Anode connection, diode（D5）The other end and resistance（R11）,（R11）The other end and power control switch（K1）'s
Normally closed point（1）Connection, while power input is through power control switch（K1）L3, N4 main line end pass through residual current transformer
（3）With electrical appliance equipment（5）Power input（L5）,（N6）Connection, testing button（7）One end connects power switch（K1）Output
（N4）End, other end series resistance（R8）With electrical appliance power input（L5）Connection, the residual current transformer（3）'s
Coil（A6）One end and integrated package（4）3 feet connection,（A6）The other end and capacitor（C5）Connection, capacitor（C5）The other end and electricity
Resistance（R7）Integrated package（4）1 foot connection, resistance（R7）The other end and integrated package（4）7 feet connection.
2. a kind of novel multiple control circuit of earth leakage according to claim 1, it is characterised in that：Described is novel
Electric leakage signal acquisition electricity, light conversion circuit（12）Optic coupling element（6）Interior light emitting diode（D9）Anode and resistance（R10）,
（R9）Connection,（R9）The other end and PE line are connected to electrical appliance equipment（5）Metal shell or object in water connection, light-emitting diodes
Pipe（D9）Cathode and it is connected to resistance（R10）, diode（D7）,（D8）On the node of anode, diode（D7）Cathode and electricity consumption
Device（5）Power input（N6）Connection, diode（D8）Cathode and electrical appliance equipment（5）Power input（L5）Connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410647085.2A CN105591357B (en) | 2014-09-30 | 2014-11-14 | A kind of novel multiple control circuit of earth leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014105096689 | 2014-09-30 | ||
| CN201410509668 | 2014-09-30 | ||
| CN201410647085.2A CN105591357B (en) | 2014-09-30 | 2014-11-14 | A kind of novel multiple control circuit of earth leakage |
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| Publication Number | Publication Date |
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| CN105591357A CN105591357A (en) | 2016-05-18 |
| CN105591357B true CN105591357B (en) | 2018-11-27 |
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| CN201410647085.2A Active CN105591357B (en) | 2014-09-30 | 2014-11-14 | A kind of novel multiple control circuit of earth leakage |
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| CN114361882B (en) * | 2021-12-06 | 2023-11-17 | 六安市同心畅能电子科技有限公司 | Safe energy-saving wall socket circuit of electric water heater |
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|---|---|---|---|---|
| CN2896507Y (en) * | 2006-03-21 | 2007-05-02 | 陈贵 | High-safety earthing-fault-line breaker |
| CN201804280U (en) * | 2010-09-02 | 2011-04-20 | 九阳股份有限公司 | Safety thermostat mounted on boiling kettle |
| CN102255277A (en) * | 2010-05-18 | 2011-11-23 | 黄华道 | Leakage detection protection circuit |
| CN103579992A (en) * | 2012-08-01 | 2014-02-12 | 樱花卫厨（中国）股份有限公司 | Voltage type leakage protection power line over-current protection device for electric water heater |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8995098B2 (en) * | 2011-10-14 | 2015-03-31 | True-Safe Technologies, Inc. | Miswire protection and annunciation of system conditions for arc fault circuit interrupters and other wiring devices |
| CN102684148B (en) * | 2012-05-30 | 2014-06-04 | 常熟市立得电器有限公司 | Leakage protection device with extended function |
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2014
- 2014-11-14 CN CN201410647085.2A patent/CN105591357B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2896507Y (en) * | 2006-03-21 | 2007-05-02 | 陈贵 | High-safety earthing-fault-line breaker |
| CN102255277A (en) * | 2010-05-18 | 2011-11-23 | 黄华道 | Leakage detection protection circuit |
| CN201804280U (en) * | 2010-09-02 | 2011-04-20 | 九阳股份有限公司 | Safety thermostat mounted on boiling kettle |
| CN103579992A (en) * | 2012-08-01 | 2014-02-12 | 樱花卫厨（中国）股份有限公司 | Voltage type leakage protection power line over-current protection device for electric water heater |
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| CN105591357A (en) | 2016-05-18 |
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