CN206004291U - A kind of residual current action breaker - Google Patents
A kind of residual current action breaker Download PDFInfo
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- CN206004291U CN206004291U CN201620884557.0U CN201620884557U CN206004291U CN 206004291 U CN206004291 U CN 206004291U CN 201620884557 U CN201620884557 U CN 201620884557U CN 206004291 U CN206004291 U CN 206004291U
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- circuit
- residual current
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Abstract
This utility model is related to a kind of residual current action breaker，Power input successively with power supply trip circuit、Triggers circuit、Residual current acting circuit and residual current detection circuit are connected，It is provided with energy-saving active selection circuit between power supply trip circuit and residual current detection circuit，Energy-saving active selection circuit includes audion，Emitter and collector is connected with the positive output end of dropout power circuit by resistance R5 and resistance R6 respectively，Parallel resistance R8 between the base stage of audion and colelctor electrode，Base stage is grounded by stabilivolt，Emitter stage is connected with residual current acting control circuit，Residual current acting control circuit is additionally provided with time delay conditioned circuit and chip，By arranging energy-saving active selection circuit，Energy-saving to realize，Greatly reduce the energy consumption of chopper，Pass through to arrange time delay conditioned circuit simultaneously，This chopper is enable to require to be configured according to different protections，Greatly improve overall chopper performance simultaneously.
Description
Technical field
This utility model is specifically related to one kind and is used for residual current action breaker.
Background technology
RCD is installed in low voltage electric network（residual current operated
Protective device, referred to as RCD, hereinafter referred to as residual current operated protective device）Be prevent the person electric shock, electrical fire and
A kind of effective safeguard procedures that electrical equipment damages.
Residual current action breaker is detection residual current, and residual current value is compared with reference value, when remaining electricity
When flow valuve exceedes reference value, make the mechanical switch electrical equipment that main circuit contact disconnects, residual current circuit breaker carries overload and short circuit
Protection, some residual current circuit breakers also can carry overvoltage protection.
How to go to improve the performance of residual current action breaker, need to improve further in current field of circuit breakers
Content.
Utility model content
The purpose of this utility model is to overcome above-mentioned weak point it is proposed that a kind of residual current action breaker.
The technical solution of the utility model is：A kind of residual current action breaker, it includes power input, described
Power input successively with power supply trip circuit, triggers circuit, residual current acting circuit and residual current detection circuit phase
Even, it is provided with energy-saving active selection circuit, described energy-conservation fall between described power supply trip circuit and residual current detection circuit
Consumption active selection circuit includes audion Q3, and the emitter and collector of described audion Q3 passes through resistance R5 and resistance R6 respectively
It is connected with the positive output end of dropout power circuit, parallel resistance R8 between the base stage of audion Q3 and colelctor electrode, described audion
The base stage of Q3 is grounded by stabilivolt D9, and the emitter stage of described audion Q3 is connected with residual current acting control circuit, resistance
Between 5-6, it is adjustable that described residual current acting control circuit is additionally provided with time delay to the ratio of the resistance of the resistance of R5 and resistance R6
Circuit and chip, described chip is SN54123.
Described time delay conditioned circuit includes adjustable resistance R11, two fixing ends of described adjustable resistance R11 respectively with chip
4 feet and 5 feet connect, series resistance R10 between any one fixing end of adjustable resistance R11 and 4 feet of chip or 5 feet, can
Adjust resistance R11 adjustable side be connected with 4 feet or 5 feet, adjustable resistance R11 connect with resistance R10 after two ends parallel diode
D11.
It is provided with the anti-interference discharge circuit of time delay, the anti-interference electricity that discharges of described time delay between 5 feet of described chip and grounding leg
Road is the resistance R12 being connected in parallel between bipod.
It is provided with anti-lightning surge circuit, described power input is 4 between described power input and power supply trip circuit
Individual, respectively input L1 end, input L2 end, input L3 end and input N-terminal, two in parallel between any two power input
Varistor after series connection.
Described power supply trip circuit is any mutually any line power taking power supply trip circuit, and arbitrarily mutually arbitrarily line power taking power supply takes off
Button circuit includes diode D1, D2, D3, D4, D5, D6, D7, D8 and tripping coil L, and the positive pole of diode D1, D2, D3 and D4 is even
It is connected together as power supply positive output end, the negative pole of diode D5, D6, D7 and D8 is connected together as power supply negative output terminal,
The positive pole of diode D1 and the negative pole of D5, the positive pole of diode D2 and diode D6 negative pole, the positive pole of diode D3 and diode
D7 negative pole, the negative pole of diode D4 positive pole and diode D8 connects respectively, is connected with power input respectively after connection again.
Described triggers circuit is double silicon partial pressure triggers circuit, and it includes controllable silicon Q1 and controllable silicon Q2, described controllable silicon Q1
Control end be connected with 7 feet of chip, the minus earth of controllable silicon Q1, the anode of controllable silicon Q1 connects the negative electrode of controllable silicon Q2,
The anode of controllable silicon Q2 is connected with power supply trip circuit and energy-saving active selection circuit, the control end of controllable silicon Q2 and its
Parallel resistance R2 between anode, parallel resistance R4 and electricity successively between the control end of described controllable silicon Q2 and the anode of controllable silicon Q1
Hold C2, the control end of described controllable silicon Q2 is grounded by resistance R3.
Described residual current acting control circuit is additionally provided with mu balanced circuit, and described mu balanced circuit includes the electrolysis being connected in parallel
The positive pole of electric capacity C3 and stabilivolt D10, electrochemical capacitor C3 connects energy-saving active selection circuit, and the negative pole of electrochemical capacitor C3 connects
Ground.
Described residual current detection circuit includes two residual current detection ends, and two residual current detection ends are passed through respectively
Be connected with two inputs of residual current acting control circuit after resistance R13 and resistance R14, two residual current detection ends it
Between parallel resistance R15 and electric capacity C10 successively, shunt capacitance C9 between two inputs of residual current acting control circuit, institute
Two inputs stating residual current acting control circuit pass through electric capacity C5 and electric capacity C8 ground connection respectively.
It is additionally provided with residual current hookup, including test button T and test resistance R1 at described power input.
The beneficial effects of the utility model：By arranging energy-saving active selection circuit, to realize energy-saving, greatly
Reduction chopper energy consumption, simultaneously pass through arrange time delay conditioned circuit so that this chopper can according to different protections will
Ask and be configured, greatly improve overall chopper performance simultaneously.
Brief description
Fig. 1 is circuit theory diagrams of the present utility model.
Specific embodiment
Below for accompanying drawing, embodiment of the present utility model is described further：
As illustrated, this utility model provides a kind of residual current action breaker, it includes power input, institute
State power input successively with power supply trip circuit, triggers circuit, residual current acting circuit and residual current detection circuit
It is connected, between described power supply trip circuit and residual current detection circuit, be provided with energy-saving active selection circuit, described energy-conservation
Consumption reduction active selection circuit includes audion Q3, and the emitter and collector of described audion Q3 passes through resistance R5 and resistance respectively
R6 is connected with the positive output end of dropout power circuit, parallel resistance R8 between the base stage of audion Q3 and colelctor electrode, described three poles
The base stage of pipe Q3 is grounded by stabilivolt D9, and the emitter stage of described audion Q3 is connected with residual current acting control circuit, electricity
The ratio of the resistance of the resistance resistance of R5 and resistance R6 is between 5-6, and the resistance of resistance R3 is in below 100K, so that this is disconnected
Road device also can action in the case of 50V.Described residual current acting control circuit is additionally provided with time delay conditioned circuit and chip,
Described chip is SN54123.
Supply voltage this circuit in AC 275V-175V actively selects resistance R5 to chip power supply;Supply voltage from
Resistance R6 is gradually converted to through Q3 to chip power supply during AC175V-50V.R5 selects 470K, and resistance R6 selects 80K, diode
D9 selects 16v, and diode D10 selects 20v, and during national standard requirement supply voltage AC50V, residual current action breaker can be just
Often work.
So audion Q3 transmitting electrode potential is higher than base potential during the input rated voltage of port, audion Q3 is in cut-off
State.When port input voltage is less than certain value, audion Q3 transmitting electrode potential is less than base potential, and audion Q3 turns on.
Circuit common only has resistance R5 directly to chip power supply (circuit common resistance R5 selects 100K), so in power supply
During rated voltage AC220V, the power consumption of circuit common is about（220-20）X (220-20)/100=400 milliwatt.
During source nominal voltage AC220V, the power consumption of this energy-saving active selection circuit is about（220-20）x (220-
20)/470+（220-16）X220/2000=107.546 milliwatt.Economize on electricity 292.454 milliwatts, i.e. every switch（Residual current acting
Chopper）Year economize on electricity 0.292454/1000 x24 x365=2.56 degree.So that switch temperature rise is greatly reduced simultaneously, greatly promote out
The comprehensive quality closing.
In source nominal voltage AC380V, the power consumption of circuit common is about（380-20）x (380-20)/100=1296
Milliwatt.
During source nominal voltage AC380V, the power consumption of this energy-saving active selection circuit is about（380-20）x (380-
20)/470+（380-16）X380/2000=345 milliwatt.0.951 watt of economize on electricity, i.e. every switch（Residual current action breaker）
Year economize on electricity 0.951/1000 x24 x365=8.33 degree.So that switch temperature rise is greatly reduced simultaneously, particularly bright to switch increased quality
Aobvious.
Described time delay conditioned circuit includes adjustable resistance R11, two fixing ends of described adjustable resistance R11 respectively with chip
4 feet and 5 feet connect, series resistance R10 between any one fixing end of adjustable resistance R11 and 4 feet of chip or 5 feet, can
Adjust resistance R11 adjustable side be connected with 4 feet or 5 feet, adjustable resistance R11 connect with resistance R10 after two ends parallel diode
D11.In parallel with one end of adjustable resistance after negative electrode series resistance R9 of diode D11, and 5 feet of chip are connect by electric capacity C7
Ground, using the variable performance of adjustable resistance resistance, realizes delay adjustment, can effectively realize different guard times and set.
The adjustable side of described adjustable resistance R11 is grounded by electric capacity C7, and this regulation resistance R11 is potentiometer, can be continuous
Adjustable, by the resistance of regulator potentiometer, to adjust delay time, can be in the case of running into larger pulse, by adjusting
Pulse is eliminated or filters by the section time, realizes preferable time delay.
Described residual current acting control circuit includes chip, ghyristor circuit and mu balanced circuit, and described chip is
SN54123.Using SN54123 chip as chip, its cost is relatively low although its time delay is not accurate, but adjustable by time delay
The design of circuit, improves its delay precision, but also greatly reduces cost.
It is provided with the anti-interference discharge circuit of time delay, the anti-interference electricity that discharges of described time delay between 5 feet of described chip and grounding leg
Road is the resistance R12 being connected in parallel between bipod.Can effectively reduce that chip is subject to disturbs, and is applying in residual current acting
When on chopper, it can be made to keep normal condition under stepwise derivation effect.And the resistance of this resistance R12 is at least 1,000,000
Europe, resistance R12 can allow the electric capacity of peripheral circuit discharge, and prevents chip from entering latch mode, so that residual current acting breaks
Road device keeps normal condition under stepwise derivation effect.
It is provided with anti-lightning surge circuit, described power input is 4 between described power input and power supply trip circuit
Individual, respectively input L1 end, input L2 end, input L3 end and input N-terminal, two in parallel between any two power input
Varistor after series connection, four line inputs, therefore a total of 4 varistors RV1, RV2, RV3 and RV4.The pressure of this protection circuit
Quick resistance adopts radial（Star）Connection makes it always be to maintain two when absorbing lightning surge between three-phase and four-line chopper each line
Varistor series connection, so can make the capacity that varistor absorbs lightning surge be multiplied.Permissible during circuit design
Reduce power and the quantity of varistor and original effect can be reached, so that whole PCB plate cost is reduced, volume-diminished.Adopt
Had the advantages that with this protection circuit：Anti-lightning surge capacity is strong；Can normal work under power failure condition；
Electric leakage signal detection is reliable and stable；Whole circuit design is simple, electromagnetic compatibility characteristic is high, small volume, production cost bottom.
Described power supply trip circuit is any mutually any line power taking power supply trip circuit, and arbitrarily mutually arbitrarily line power taking power supply takes off
Button circuit includes diode D1, D2, D3, D4, D5, D6, D7, D8 and tripping coil L, and the positive pole of diode D1, D2, D3 and D4 is even
It is connected together as power supply positive output end, the negative pole of diode D5, D6, D7 and D8 is connected together as power supply negative output terminal,
The positive pole of diode D1 and the negative pole of D5, the positive pole of diode D2 and diode D6 negative pole, the positive pole of diode D3 and diode
D7 negative pole, the negative pole of diode D4 positive pole and diode D8 connects respectively, is connected with power input respectively after connection again.
As long as four output leads of so three-phase and four-line chopper have any two lines to have voltage, power positive cathode just has one
The individual voltage that can make normal operation of circuit breaker.
Described triggers circuit is double silicon partial pressure triggers circuit, and it includes controllable silicon Q1 and controllable silicon Q2, described controllable silicon Q1
Control end be connected with 7 feet of chip, the minus earth of controllable silicon Q1, the anode of controllable silicon Q1 connects the negative electrode of controllable silicon Q2,
The anode of controllable silicon Q2 is connected with power supply trip circuit and energy-saving active selection circuit, the control end of controllable silicon Q2 and its
Parallel resistance R2 between anode, parallel resistance R4 and electricity successively between the control end of described controllable silicon Q2 and the anode of controllable silicon Q1
Hold C2, the control end of described controllable silicon Q2 is grounded by resistance R3.The control end of controllable silicon Q1 is grounded by resistance R7, controllable silicon
The control end of Q1 is connected with 7 feet of chip, shunt capacitance C6 between 7 feet of chip and 6 feet, and 7 feet of chip are connect by electric capacity C1
Ground.
By one controllable silicon of selectable selection or two it is assumed that commonly single silicon circuit was pressure originally is 600V, should
Double silicon circuits can reach 1200V, and three silicon can reach 1800V；Effectively meet at present to residual current action breaker
Pressure voltage demand.
Described residual current acting control circuit is additionally provided with mu balanced circuit, and described mu balanced circuit includes the electrolysis being connected in parallel
The positive pole of electric capacity C3 and stabilivolt D10, electrochemical capacitor C3 connects energy-saving active selection circuit, and the negative pole of electrochemical capacitor C3 connects
Ground.
Described residual current detection circuit includes two residual current detection ends, and two residual current detection ends are passed through respectively
Be connected with two inputs of residual current acting control circuit after resistance R13 and resistance R14, two residual current detection ends it
Between parallel resistance R15 and electric capacity C10 successively, shunt capacitance C9 between two inputs of residual current acting control circuit, institute
Two inputs stating residual current acting control circuit pass through electric capacity C5 and electric capacity C8 ground connection respectively.
It is additionally provided with residual current hookup, including test button T and test resistance R1 at described power input.
Embodiment is not construed as the restriction to utility model, but any based on of the present utility model spirit improvements introduced,
All should be within protection domain of the present utility model.
Claims (9)
1. a kind of residual current action breaker, it include power input it is characterised in that：Described power input successively with
Power supply trip circuit, triggers circuit, residual current acting circuit and residual current detection circuit are connected, and described power supply is threaded off electric
It is provided with energy-saving active selection circuit, described energy-saving active selection circuit includes between road and residual current detection circuit
The emitter and collector of audion Q3, described audion Q3 with dropout power circuit is just passing through resistance R5 and resistance R6 respectively
Outfan connects, parallel resistance R8 between the base stage of audion Q3 and colelctor electrode, and the base stage of described audion Q3 passes through stabilivolt
D9 is grounded, and the emitter stage of described audion Q3 is connected with residual current acting control circuit, and the resistance of resistance R5 is with resistance R6's
Between 5-6, described residual current acting control circuit is additionally provided with time delay conditioned circuit and chip, described core to the ratio of resistance
Piece is SN54123.
2. a kind of residual current action breaker according to claim 1 it is characterised in that：Described time delay conditioned circuit bag
Include adjustable resistance R11, two fixing ends of described adjustable resistance R11 are connected with 4 feet of chip and 5 feet respectively, adjustable resistance R11
Any one fixing end and 4 feet of chip or 5 feet between series resistance R10, the adjustable side of adjustable resistance R11 and 4 feet or 5 feet
Connect, adjustable resistance R11 connect with resistance R10 after two ends parallel diode D11.
3. a kind of residual current action breaker according to claim 1 it is characterised in that：5 feet of described chip with connect
It is provided with the anti-interference discharge circuit of time delay, the anti-interference discharge circuit of described time delay is the resistance being connected in parallel between bipod between lower margin
R12.
4. residual current action breaker according to claim 1 it is characterised in that：Described power input is taken off with power supply
It is provided with anti-lightning surge circuit, described power input is 4, respectively input L1 end, input L2 end, input between button circuit
L3 end and input N-terminal, the varistor after two series connection in parallel between any two power input.
5. a kind of residual current action breaker according to claim 4 it is characterised in that：Described power supply trip circuit is
Arbitrarily mutually any line power taking power supply trip circuit, arbitrarily mutually arbitrarily line power taking power supply trip circuit include diode D1, D2, D3,
D4, D5, D6, D7, D8 and tripping coil L, the positive pole of diode D1, D2, D3 and D4 is connected together as power supply positive output end,
The negative pole of diode D5, D6, D7 and D8 is connected together as power supply negative output terminal, the positive pole of diode D1 and the negative pole of D5,
The positive pole of diode D2 and diode D6 negative pole, the positive pole of diode D3 and diode D7 negative pole, diode D4 positive pole and two poles
The negative pole of pipe D8 connects respectively, is connected with power input respectively after connection again.
6. a kind of residual current action breaker according to claim 1 it is characterised in that：Described triggers circuit is double silicon
Partial pressure triggers circuit, it includes controllable silicon Q1 and controllable silicon Q2, described controllable silicon Q1 control end be connected with 7 feet of chip,
The minus earth of controllable silicon Q1, the anode of controllable silicon Q1 connects the negative electrode of controllable silicon Q2, and the anode of controllable silicon Q2 and power supply are threaded off electric
Road and energy-saving active selection circuit connect, parallel resistance R2 between the control end of controllable silicon Q2 and its anode, described can
Parallel resistance R4 and electric capacity C2 successively between the control control end of silicon Q2 and the anode of controllable silicon Q1, the control end of described controllable silicon Q2
It is grounded by resistance R3.
7. a kind of residual current action breaker according to claim 1 it is characterised in that：Described residual current acting control
Circuit processed is additionally provided with mu balanced circuit, and described mu balanced circuit includes the electrochemical capacitor C3 being connected in parallel and stabilivolt D10, electrochemical capacitor
The positive pole of C3 connects energy-saving active selection circuit, the minus earth of electrochemical capacitor C3.
8. a kind of residual current action breaker according to claim 1 it is characterised in that：Described residual current detection electricity
Road includes two residual current detection ends, and two residual current detection ends are electric with residue after resistance R13 and resistance R14 respectively
Two inputs of stream control circuit connect, parallel resistance R15 and electric capacity successively between two residual current detection ends
C10, shunt capacitance C9 between two inputs of residual current acting control circuit, described residual current acting control circuit
Two inputs pass through electric capacity C5 and electric capacity C8 ground connection respectively.
9. a kind of residual current action breaker according to claim 1 it is characterised in that：At described power input also
It is provided with residual current hookup, including test button T and test resistance R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884557.0U CN206004291U (en) | 2016-08-16 | 2016-08-16 | A kind of residual current action breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884557.0U CN206004291U (en) | 2016-08-16 | 2016-08-16 | A kind of residual current action breaker |
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| Publication Number | Publication Date |
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| CN206004291U true CN206004291U (en) | 2017-03-08 |
Family
ID=58199177
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620884557.0U Withdrawn - After Issue CN206004291U (en) | 2016-08-16 | 2016-08-16 | A kind of residual current action breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300239A (en) * | 2016-08-16 | 2017-01-04 | 华通机电股份有限公司 | A kind of residual current action breaker |
-
2016
- 2016-08-16 CN CN201620884557.0U patent/CN206004291U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300239A (en) * | 2016-08-16 | 2017-01-04 | 华通机电股份有限公司 | A kind of residual current action breaker |
| CN106300239B (en) * | 2016-08-16 | 2018-09-25 | 华通机电股份有限公司 | A kind of residual current action breaker |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20180925 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20180925 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |