CN203504145U - Small electric-leakage breaker circuit - Google Patents

Small electric-leakage breaker circuit Download PDF

Info

Publication number
CN203504145U
CN203504145U CN201320607666.4U CN201320607666U CN203504145U CN 203504145 U CN203504145 U CN 203504145U CN 201320607666 U CN201320607666 U CN 201320607666U CN 203504145 U CN203504145 U CN 203504145U
Authority
CN
China
Prior art keywords
circuit
electrical leakage
control unit
electric
detection
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 - Fee Related
Application number
CN201320607666.4U
Other languages
Chinese (zh)
Inventor
余存泰
赵东杰
彭昆明
黎永胜
李其利
杨晓红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Great Wall Electrical Appliance Group Zhejiang Technology Co., Ltd.
Original Assignee
CNC Electric Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CNC Electric Group Co Ltd filed Critical CNC Electric Group Co Ltd
Priority to CN201320607666.4U priority Critical patent/CN203504145U/en
Application granted granted Critical
Publication of CN203504145U publication Critical patent/CN203504145U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model relates to a small electric-leakage breaker circuit. The small electric-leakage breaker circuit comprises a power supply circuit. The small electric-leakage breaker circuit is characterized in that: the small electric-leakage breaker circuit further comprises an electric leakage signal conditioning circuit, an electric leakage detection control unit, an electric leakage detection control unit required circuit, an electric leakage test circuit and a trip circuit, wherein the power supply circuit is connected with the electric leakage test circuit, electric leakage detection control unit and the trip circuit, the electric leakage signal conditioning circuit is connected with the electric leakage detection control unit, and the electric leakage detection control unit required circuit is connected with the electric leakage detection control unit. The small electric-leakage breaker circuit provided by the utility model increases the value of the withstanding voltage of the trip circuit, improves anti-lighting surge capability and is high in performance cost ratio; the working temperature rise of the power supply circuit is lowered, the reliability of a product and the pulse train resistance capability of the product are improved, and a phenomenon of false tripping of the product is reduced; and the small electric-leakage breaker circuit has the advantages of simple circuit design, strong anti-EMC performance, high reliability and low cost, and actual needs of a small electric-leakage circuit breaker are met more.

Description

Minitype electrical leakage breaker circuit
Technical field
The utility model relates to breaker circuit field, more particularly, relates to a kind of Minitype electrical leakage breaker circuit.
Background technology
The power circuit of Minitype electrical leakage breaker generally adopts the form of resistance step-down at present, due to standard GB16917.1 regulation, its operating voltage range is minimum in 50V, the highest restriction in 440V and small product size, cause adopting dropping resistor high-power, large resistance, so that dropping resistor temperature rise ratio when normal work is higher, thereby reduce the reliability of whole circuit working, owing to only adopting the voltage stabilizing circuit of detection of electrical leakage control unit inside, the ability that causes the anti-impulse train of product to disturb easily produces false tripping phenomenon simultaneously; Also have trip circuit generally to adopt single silicon controlled form, after breaker electrifying, alternating voltage is applied directly between silicon controlled anode and negative electrode through rectification, now the direct voltage at controllable silicon two ends surpasses 400V, and more than its reverse withstand voltage is at least selected in 1000V, very high to single silicon controlled parameter request like this, the quality of product directly depends on the individual parameter of silicon controlled, reliability, fail safe and the anti-lightning surge of product are reduced, and cost compare is high is simultaneously unfavorable for batch production.
Utility model content
The technical problems to be solved in the utility model is, for the false tripping phenomenon of prior art frequently occur, circuit reliability is poor, fail safe and the low defect of anti-lightning surge, and a kind of Minitype electrical leakage breaker circuit is provided, at least comprise: power circuit; Electric leakage signal modulate circuit; Detection of electrical leakage control unit; The required circuit of detection of electrical leakage control unit; Leak(age) test circuit; Trip circuit.
Wherein, described power circuit is connected with leak(age) test circuit, detection of electrical leakage control unit, trip circuit; Electric leakage signal modulate circuit is connected with detection of electrical leakage control unit; The required circuit of detection of electrical leakage control unit is connected with detection of electrical leakage control unit.
In Minitype electrical leakage breaker circuit described in the utility model, described power circuit is further comprised of surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit.
In Minitype electrical leakage breaker circuit described in the utility model, described electric leakage signal modulate circuit is by resistance R 4, R5, R6, and capacitor C 3, C4, C5, C6 and diode D6 form.
In Minitype electrical leakage breaker circuit described in the utility model, described detection of electrical leakage control unit is comprised of detection of electrical leakage integrated circuit VG54123.
In Minitype electrical leakage breaker circuit described in the utility model, the described required circuit of detection of electrical leakage control unit is comprised of capacitor C 7, C8.
In Minitype electrical leakage breaker circuit described in the utility model, described leak(age) test circuit is comprised of resistance R 1.
In Minitype electrical leakage breaker circuit described in the utility model, described trip circuit is by diode D7, D3, release Trip, and resistance R 3, R7, R8, R9, capacitor C 9 and double silicon control series circuit D8, D9 form.
In Minitype electrical leakage breaker circuit described in the utility model, described surge restraint circuit further consists of piezo-resistance MYR1; Described full-wave rectifying circuit further consists of diode D1, D2, D3, D4; Described capacitance-resistance voltage reduction circuit further consists of resistance R 2, capacitor C 1; Auxiliary voltage stabilizing circuit and capacitor C 2 that described filter circuit further consists of voltage stabilizing didoe D5 form.
Implement Minitype electrical leakage breaker circuit of the present utility model, there is following beneficial effect: adopt the form of double silicon control series connection, not only make trip circuit withstand voltage double, anti-lightning surge capacity improves greatly, and cost performance is very high; Power circuit employing group is held step-down form, reduces the work temperature rise of power circuit, greatly improves the reliability of product, and the ability that simultaneously adopts auxiliary voltage stabilizing circuit greatly to improve the anti-impulse train of product reduces the false tripping phenomenon of product; Simultaneously simple, the anti-EMC performance of circuit design is strong, reliability is high and cost at the bottom of, more meet the actual demand of Minitype electrical leakage breaker.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the Minitype electrical leakage breaker circuit diagram of available technology adopting resistance step-down;
Fig. 2 is the Minitype electrical leakage breaker circuit diagram of the single silicon controlled form of available technology adopting;
Fig. 3 is the theory diagram of the utility model Minitype electrical leakage breaker circuit;
Fig. 4 is the circuit diagram of the utility model Minitype electrical leakage breaker circuit.
Embodiment
Refer to Fig. 1, Fig. 1 is the Minitype electrical leakage breaker circuit diagram of available technology adopting resistance step-down, adopts the form of resistance step-down.Its defect is that operating voltage range is minimum in 50V, the highest restriction in 440V and small product size, cause adopting dropping resistor high-power, large resistance, so that dropping resistor temperature rise ratio when normal work is higher, thereby reduce the reliability of whole circuit working, owing to only adopting the voltage stabilizing circuit of detection of electrical leakage control unit inside, the ability that causes the anti-impulse train of product to disturb easily produces false tripping phenomenon simultaneously.
Refer to Fig. 2, Fig. 2 is the Minitype electrical leakage breaker circuit diagram of the single silicon controlled form of available technology adopting.Its defect is: after breaker electrifying, alternating voltage is applied directly between silicon controlled anode and negative electrode through rectification, now the direct voltage at controllable silicon two ends surpasses 400V, and more than its reverse withstand voltage is at least selected in 1000V, very high to single silicon controlled parameter request like this, the quality of product directly depends on the individual parameter of silicon controlled.
As shown in Figure 3, Fig. 3 is the theory diagram of the utility model Minitype electrical leakage breaker circuit.A Minitype electrical leakage breaker circuit, at least comprises: power circuit; Electric leakage signal modulate circuit; Detection of electrical leakage control unit; The required circuit of detection of electrical leakage control unit; Leak(age) test circuit; Trip circuit; Wherein, described power circuit is connected with leak(age) test circuit, detection of electrical leakage control unit, trip circuit; Electric leakage signal modulate circuit is connected with detection of electrical leakage control unit; The required circuit of detection of electrical leakage control unit is connected with detection of electrical leakage control unit.
Preferably, described power circuit is further comprised of surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit.
Preferably, described electric leakage signal modulate circuit is by resistance R 4, R5, R6, and capacitor C 3, C4, C5, C6 and diode D6 form.
Preferably, described detection of electrical leakage control unit is comprised of detection of electrical leakage integrated circuit VG54123.
Preferably, the described required circuit of detection of electrical leakage control unit is comprised of capacitor C 7, C8.
Preferably, described leak(age) test circuit is comprised of resistance R 1.
Preferably, described trip circuit is by diode D7, D3, release Trip, and resistance R 3, R7, R8, R9, capacitor C 9 and double silicon control series circuit D8, D9 form.
Preferably, described surge restraint circuit further consists of piezo-resistance MYR1; Described full-wave rectifying circuit further consists of diode D1, D2, D3, D4; Described capacitance-resistance voltage reduction circuit further consists of resistance R 2, capacitor C 1; Auxiliary voltage stabilizing circuit and capacitor C 2 that described filter circuit further consists of voltage stabilizing didoe D5 form.
As shown in Figure 4, Fig. 4 is the circuit diagram of the utility model Minitype electrical leakage breaker circuit.
The utility model, by the design of above theory diagram, has beneficial effect: one, adopt the form of double silicon control series connection, not only make trip circuit withstand voltage double, anti-lightning surge capacity improves greatly, and cost performance is very high; Two, power circuit adopts resistance-capacitance depressurization form, reduces the work temperature rise of power circuit, greatly improves the reliability of product, and the ability that simultaneously adopts auxiliary voltage stabilizing circuit greatly to improve the anti-impulse train of product reduces the false tripping phenomenon of product; Three, simultaneously simple, the anti-EMC performance of circuit design is strong, reliability is high and cost at the bottom of, more meet the actual demand of Minitype electrical leakage breaker.
The utility model is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the utility model scope, can carry out various variations and be equal to replacement.In addition,, for adapting to the specific occasion of the utility model technology, can carry out many modifications and not depart from its protection range the utility model.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises all embodiment that drop into claim protection range.

Claims (8)

1. a Minitype electrical leakage breaker circuit, comprising: power circuit, it is characterized in that, and described Minitype electrical leakage breaker circuit also comprises:
Electric leakage signal modulate circuit;
Detection of electrical leakage control unit;
The required circuit of detection of electrical leakage control unit;
Leak(age) test circuit;
Trip circuit;
Wherein, described power circuit is connected with leak(age) test circuit, detection of electrical leakage control unit, trip circuit; Electric leakage signal modulate circuit is connected with detection of electrical leakage control unit; The required circuit of detection of electrical leakage control unit is connected with detection of electrical leakage control unit.
2. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, described power circuit is further comprised of surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit.
3. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, described electric leakage signal modulate circuit is by resistance R 4, R5, R6, and capacitor C 3, C4, C5, C6 and diode D6 form.
4. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, described detection of electrical leakage control unit is comprised of detection of electrical leakage integrated circuit VG54123.
5. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, the described required circuit of detection of electrical leakage control unit is comprised of capacitor C 7, C8.
6. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, described leak(age) test circuit is comprised of resistance R 1.
7. Minitype electrical leakage breaker circuit according to claim 1, is characterized in that, described trip circuit is by diode D7, D3, release Trip, and resistance R 3, R7, R8, R9, capacitor C 9 and double silicon control series circuit D8, D9 form.
8. Minitype electrical leakage breaker circuit according to claim 2, is characterized in that, described surge restraint circuit further consists of piezo-resistance MYR1; Described full-wave rectifying circuit further consists of diode D1, D2, D3, D4; Described capacitance-resistance voltage reduction circuit further consists of resistance R 2, capacitor C 1; Auxiliary voltage stabilizing circuit and capacitor C 2 that described filter circuit further consists of voltage stabilizing didoe D5 form.
CN201320607666.4U 2013-09-30 2013-09-30 Small electric-leakage breaker circuit Expired - Fee Related CN203504145U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320607666.4U CN203504145U (en) 2013-09-30 2013-09-30 Small electric-leakage breaker circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320607666.4U CN203504145U (en) 2013-09-30 2013-09-30 Small electric-leakage breaker circuit

Publications (1)

Publication Number Publication Date
CN203504145U true CN203504145U (en) 2014-03-26

Family

ID=50335090

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320607666.4U Expired - Fee Related CN203504145U (en) 2013-09-30 2013-09-30 Small electric-leakage breaker circuit

Country Status (1)

Country Link
CN (1) CN203504145U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103500983A (en) * 2013-09-30 2014-01-08 长城电器集团有限公司 Circuit of miniature electric leakage circuit breaker
CN104577972A (en) * 2015-01-28 2015-04-29 长城电器集团有限公司 Minitype residual current protective circuit
CN106655134A (en) * 2016-08-31 2017-05-10 浙江人民电器有限公司 Integrated circuit with separable electric leakage circuit and prepayment circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103500983A (en) * 2013-09-30 2014-01-08 长城电器集团有限公司 Circuit of miniature electric leakage circuit breaker
CN104577972A (en) * 2015-01-28 2015-04-29 长城电器集团有限公司 Minitype residual current protective circuit
CN106655134A (en) * 2016-08-31 2017-05-10 浙江人民电器有限公司 Integrated circuit with separable electric leakage circuit and prepayment circuit

Similar Documents

Publication Publication Date Title
CN103500983A (en) Circuit of miniature electric leakage circuit breaker
CN203504145U (en) Small electric-leakage breaker circuit
CN201918692U (en) Power supply device for residual current protector
CN203589692U (en) Circuit of miniature residual current circuit breaker
CN203645301U (en) Set top box with overvoltage protection
CN103500984A (en) Circuit of miniature residual current circuit breaker
CN102496906A (en) Method of overvoltage protection of PFC output filter capacitor of display device and overvoltage protection circuit thereof
CN203850815U (en) Open circuit type protective power source
CN202696482U (en) Power supply circuit for leakage circuit breaker
CN203951360U (en) A kind of super wide direct voltage that is applied to photovoltaic system is inputted embedded power supply
CN202550694U (en) CT (current transformer) power taking circuit allowing for reducing heat of CT
CN202405744U (en) Overvoltage protection circuit for power factor correction (PFC) output filter capacitor of display device
CN204258649U (en) A kind of intelligent building management device
CN203014340U (en) Self-recovery over-voltage/under-voltage protector
CN203674996U (en) Elevator integrated control power supply
CN205793510U (en) A kind of AC LED circuit
CN202696110U (en) Overvoltage and under-voltage protection circuit
CN202750028U (en) 5V stabilized power supply with protection function
CN203589689U (en) Under-voltage tripper circuit for miniature circuit breaker
CN204258298U (en) A kind of low-pressure energy-saving stable-pressure device
CN204538656U (en) Time lagged type residual current circuit breaker circuit
CN204538983U (en) A kind of power of alterating and direct current
CN203027133U (en) Starting circuit based on quasi-resonance controller
CN204089160U (en) There is the circuit of miniature electric leakage circuit breaker of pre paid functionality
CN103001334A (en) Suspension power extraction device and suspension power extraction method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170822

Address after: 2-1 No. 325000 Zhejiang North white elephant Yueqing White Town Road (South)

Patentee after: Zhejiang Kai FA Electric Co., Ltd.

Address before: 2-1 No. 325000 Zhejiang North white elephant Yueqing White Town Road

Patentee before: CNC Electric Group Co.,Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 325000 No. 2-1 Baixiang Avenue, Beibeixiang Town, Yueqing City, Zhejiang Province (South Building)

Patentee after: Great Wall Electrical Appliance Group Zhejiang Technology Co., Ltd.

Address before: 325000 No. 2-1 Baixiang Avenue, Beibeixiang Town, Yueqing City, Zhejiang Province (South Building)

Patentee before: Zhejiang Kai FA Electric Co., Ltd.

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20200930

CF01 Termination of patent right due to non-payment of annual fee