CN204089160U - There is the circuit of miniature electric leakage circuit breaker of pre paid functionality - Google Patents

There is the circuit of miniature electric leakage circuit breaker of pre paid functionality Download PDF

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Publication number
CN204089160U
CN204089160U CN201420612349.6U CN201420612349U CN204089160U CN 204089160 U CN204089160 U CN 204089160U CN 201420612349 U CN201420612349 U CN 201420612349U CN 204089160 U CN204089160 U CN 204089160U
Authority
CN
China
Prior art keywords
circuit
control unit
detection
electrical leakage
leakage control
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
CN201420612349.6U
Other languages
Chinese (zh)
Inventor
余存泰
肖义峰
章火明
黎永胜
李其利
彭昆明
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 CN201420612349.6U priority Critical patent/CN204089160U/en
Application granted granted Critical
Publication of CN204089160U publication Critical patent/CN204089160U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of circuit of miniature electric leakage circuit breaker with pre paid functionality, comprise: power supply inputs, also comprise: power circuit, circuit, leak(age) test circuit, ammeter signal deteching circuit, arrearage delay circuit, trip circuit needed for the detection of electrical leakage control unit be connected with power circuit, detection of electrical leakage control unit, electric leakage signal modulate circuit; Trip circuit connects detection of electrical leakage control unit and arrearage delay circuit, and electric leakage signal modulate circuit is connected with detection of electrical leakage control unit; Detection of electrical leakage control unit is connected with circuit needed for detection of electrical leakage control unit; Wherein, power circuit comprises surge restraint circuit, full-wave rectifying circuit, filter circuit, voltage stabilizing circuit.Cost is low, easy-to-connect, accurately, reliably; Simplicity of design, anti-EMC performance is strong and reliability is high, more meets the actual demand of the Minitype electrical leakage breaker with pre paid functionality.

Description

There is the circuit of miniature electric leakage circuit breaker of pre paid functionality
Technical field
The utility model relates to residual current circuit breaker technical field, more particularly, relates to a kind of circuit of miniature electric leakage circuit breaker with pre paid functionality.
Background technology
Widely using and promoting along with pre-paying kilowatt-hour meter definite purpose circuit breaker, requires that the demand that Minitype electrical leakage breaker has pre paid functionality also gets more and more.The residual current circuit breaker with pre paid functionality used in the market generally adopts two pieces of wiring boards to combinationally use: one piece has pre-paying kilowatt-hour meter function; Although another block has leakage function. this combination can meet using function requirement, needs interiors of products to have enough installing spaces to place two pieces of wiring boards.Minitype electrical leakage breaker cannot realize due to the restriction of self space at all; Two pieces of wiring boards combinationally use and cause wiring complexity, reliability low simultaneously, and need respective power circuit, cause high expensive to be unfavorable for batch production.
Therefore, prior art urgently has greatly improved.
Summary of the invention
The technical problems to be solved in the utility model is, above-mentioned wiring for prior art is complicated, reliability is low, and need respective power circuit, high expensive is caused to be unfavorable for the defect produced in batches, a kind of circuit of miniature electric leakage circuit breaker with pre paid functionality is provided, comprise: power supply inputs, it is characterized in that, the described circuit of miniature electric leakage circuit breaker with pre paid functionality also comprises: power circuit, the detection of electrical leakage control unit be connected with described power circuit, circuit needed for detection of electrical leakage control unit, leak(age) test circuit, ammeter signal deteching circuit, arrearage delay circuit, trip circuit, electric leakage signal modulate circuit, described trip circuit connects described detection of electrical leakage control unit and arrearage delay circuit, and described electric leakage signal modulate circuit is connected with described detection of electrical leakage control unit, described detection of electrical leakage control unit is connected with circuit needed for described detection of electrical leakage control unit,
Wherein, described power circuit comprises surge restraint circuit, full-wave rectifying circuit, filter circuit, voltage stabilizing circuit; Described electric leakage signal modulate circuit comprises resistance R5, R6, R7, electric capacity C2, C6, C8, C9 and diode D2; Described detection of electrical leakage control unit comprises detection of electrical leakage integrated circuit U1; Needed for described detection of electrical leakage control unit, circuit comprises electric capacity C3, C4, C7; Described leak(age) test circuit comprises resistance R3; Described trip circuit comprises diode D3, D8, D9, release L; Described ammeter signal deteching circuit comprises resistance R10, R11, diode D10, electric capacity C11 and transistor Q1; Described arrearage delay circuit (6) comprises resistance R8, R9, electric capacity C10.
Have in the circuit of miniature electric leakage circuit breaker of pre paid functionality described in the utility model, described surge restraint circuit comprises further: piezo-resistance MYR1; Described full-wave rectifying circuit comprises diode D4, D5, D6, D7 further; Described, filter circuit comprises resistance R4, electric capacity C5 further; Described voltage stabilizing circuit comprises resistance R1 and voltage stabilizing didoe D1 further; Described filter circuit comprises electric capacity C1 further.
Have in the circuit of miniature electric leakage circuit breaker of pre paid functionality described in the utility model, described diode D8, D9 form automatic selector switch, thread off or ammeter arrearage dropout for automatically selecting earth leakage protective.
Implement the circuit of miniature electric leakage circuit breaker with pre paid functionality of the present utility model, there is following beneficial effect: cost is low, easy-to-connect, and decreases the volume of wiring board; Trip circuit employing simultaneously selects earth leakage protective to thread off or ammeter arrearage dropout mode automatically, makes trip circuit work more accurately, reliably; Simple, the anti-EMC performance of whole circuit design is strong and reliability is high, more meets the actual demand of the Minitype electrical leakage breaker with pre paid functionality.
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 schematic block circuit diagram that the utility model has the first embodiment of the circuit of miniature electric leakage circuit breaker of pre paid functionality;
Fig. 2 is the physical circuit schematic diagram of control module in Fig. 1.
Embodiment
Refer to Fig. 1, there is for the utility model the schematic block circuit diagram of the first embodiment of the circuit of miniature electric leakage circuit breaker of pre paid functionality.As shown in Figure 1, what provide in the utility model first embodiment has in the circuit of miniature electric leakage circuit breaker of pre paid functionality, at least comprise, comprise: power supply inputs, it is characterized in that, the described circuit of miniature electric leakage circuit breaker with pre paid functionality also comprises: power circuit 1, circuit 3, leak(age) test circuit 4, ammeter signal deteching circuit 5, arrearage delay circuit 6, trip circuit 7 needed for the detection of electrical leakage control unit U1 be connected with described power circuit 1, detection of electrical leakage control unit, electric leakage signal modulate circuit 8; Described trip circuit 7 connects described detection of electrical leakage control unit U1 and arrearage delay circuit 6, and described electric leakage signal modulate circuit 8 is connected with described detection of electrical leakage control unit U1; Described detection of electrical leakage control unit U1 is connected with circuit 3 needed for described detection of electrical leakage control unit;
Wherein, described power circuit 1 comprises surge restraint circuit, full-wave rectifying circuit, filter circuit, voltage stabilizing circuit; Described electric leakage signal modulate circuit 2 comprises resistance R5, R6, R7, electric capacity C2, C6, C8, C9 and diode D2; Described detection of electrical leakage control unit comprises detection of electrical leakage integrated circuit U1; Needed for described detection of electrical leakage control unit, circuit 3 comprises electric capacity C3, C4, C7; Described leak(age) test circuit 4 comprises resistance R3; Described trip circuit 7 comprises diode D3, D8, D9, release L; Described ammeter signal deteching circuit 5 comprises resistance R10, R11, diode D10, electric capacity C11 and transistor Q1; Described arrearage delay circuit 6 comprises resistance R8, R9, electric capacity C10.
Have in the circuit of miniature electric leakage circuit breaker of pre paid functionality described in the utility model, described surge restraint circuit comprises further: piezo-resistance MYR1; Described full-wave rectifying circuit comprises diode D4, D5, D6, D7 further; Described, filter circuit comprises resistance R4, electric capacity C5 further; Described voltage stabilizing circuit comprises resistance R1 and voltage stabilizing didoe D1 further; Described filter circuit comprises electric capacity C1 further.
Described diode D8, D9 form automatic selector switch, thread off or ammeter arrearage dropout for automatically selecting earth leakage protective.
The utility model, by the design of above first embodiment, can be accomplished that cost is low, easy-to-connect, and decrease the volume of wiring board; Trip circuit employing simultaneously selects earth leakage protective to thread off or ammeter arrearage dropout mode automatically, makes trip circuit work more accurately, reliably; Simple, the anti-EMC performance of whole circuit design is strong and reliability is high, more meets the actual demand of the Minitype electrical leakage breaker with pre paid functionality.
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 change and equivalent replacement.In addition, for adapting to the specific occasion of the utility model technology, can many amendments be carried out to the utility model and not depart from its protection range.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.

Claims (3)

1. one kind has the circuit of miniature electric leakage circuit breaker of pre paid functionality, comprise: power supply inputs, it is characterized in that, the described circuit of miniature electric leakage circuit breaker with pre paid functionality also comprises: power circuit (1), circuit (3), leak(age) test circuit (4), ammeter signal deteching circuit (5), arrearage delay circuit (6), trip circuit (7) needed for the detection of electrical leakage control unit U1 be connected with described power circuit (1), detection of electrical leakage control unit, electric leakage signal modulate circuit (2); Described trip circuit (7) connects described detection of electrical leakage control unit U1 and arrearage delay circuit (6), and described electric leakage signal modulate circuit (2) is connected with described detection of electrical leakage control unit U1; Described detection of electrical leakage control unit U1 is connected with circuit (3) needed for described detection of electrical leakage control unit;
Wherein, described power circuit (1) comprises surge restraint circuit, full-wave rectifying circuit, filter circuit, voltage stabilizing circuit; Described electric leakage signal modulate circuit (2) comprises resistance R5, R6, R7, electric capacity C2, C6, C8, C9 and diode D2; Described detection of electrical leakage control unit comprises detection of electrical leakage integrated circuit U1; Needed for described detection of electrical leakage control unit, circuit (3) comprises electric capacity C3, C4, C7; Described leak(age) test circuit (4) comprises resistance R3; Described trip circuit (7) comprises diode D3, D8, D9, release L; Described ammeter signal deteching circuit (5) comprises resistance R10, R11, diode D10, electric capacity C11 and transistor Q1; Described arrearage delay circuit (6) comprises resistance R8, R9, electric capacity C10.
2. the circuit of miniature electric leakage circuit breaker with pre paid functionality according to claim 1, is characterized in that, described surge restraint circuit comprises further: piezo-resistance MYR1; Described full-wave rectifying circuit comprises diode D4, D5, D6, D7 further; Described, filter circuit comprises resistance R4, electric capacity C5 further; Described voltage stabilizing circuit comprises resistance R1 and voltage stabilizing didoe D1 further; Described filter circuit comprises electric capacity C1 further.
3. the circuit of miniature electric leakage circuit breaker with pre paid functionality according to claim 2, is characterized in that, described diode D8, D9 form automatic selector switch, threads off or ammeter arrearage dropout for automatically selecting earth leakage protective.
CN201420612349.6U 2014-10-22 2014-10-22 There is the circuit of miniature electric leakage circuit breaker of pre paid functionality Expired - Fee Related CN204089160U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420612349.6U CN204089160U (en) 2014-10-22 2014-10-22 There is the circuit of miniature electric leakage circuit breaker of pre paid functionality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420612349.6U CN204089160U (en) 2014-10-22 2014-10-22 There is the circuit of miniature electric leakage circuit breaker of pre paid functionality

Publications (1)

Publication Number Publication Date
CN204089160U true CN204089160U (en) 2015-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420612349.6U Expired - Fee Related CN204089160U (en) 2014-10-22 2014-10-22 There is the circuit of miniature electric leakage circuit breaker of pre paid functionality

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269820A (en) * 2014-10-22 2015-01-07 长城电器集团有限公司 Small residual current breaker circuit with prepayment function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269820A (en) * 2014-10-22 2015-01-07 长城电器集团有限公司 Small residual current breaker circuit with prepayment function

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20171228

Address after: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South)

Patentee after: ZHEJIANG KEVA ELECTRIC CO.,LTD.

Address before: 325000, No. 2-1, white elephant Avenue, North white elephant Town, Wenzhou, Zhejiang, Yueqing

Patentee before: CNC Electric Group Co.,Ltd.

TR01 Transfer of patent right
CP03 Change of name, title or address

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 white elephant road 2-1, North white elephant Town, Yueqing, Wenzhou, Zhejiang (South Tower)

Patentee before: ZHEJIANG KEVA ELECTRIC CO.,LTD.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20211022

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