CN203397430U - Circuit breaker for prepaid electricity meter - Google Patents
Circuit breaker for prepaid electricity meter Download PDFInfo
- Publication number
- CN203397430U CN203397430U CN201320419648.3U CN201320419648U CN203397430U CN 203397430 U CN203397430 U CN 203397430U CN 201320419648 U CN201320419648 U CN 201320419648U CN 203397430 U CN203397430 U CN 203397430U
- Authority
- CN
- China
- Prior art keywords
- circuit
- hour meter
- isolating switch
- paying kilowatt
- voltage
- 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
Links
- 230000005611 electricity Effects 0.000 title abstract description 7
- 230000003111 delayed effect Effects 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000006837 decompression Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a circuit breaker for a prepaid electricity meter. The circuit breaker comprises a power supply circuit, a delay tripping circuit, a voltage detection circuit and an electricity meter signal detection circuit, wherein the delay tripping circuit is respectively connected with the power supply circuit and the voltage detection circuit; the electricity meter signal detection circuit is connected with the voltage detection circuit. The circuit breaker for the prepaid electricity meter provided by the utility model has the advantages that the system safety is high, the reliability is high, the design of the entire circuit is simple, the electromagnetic compatibility is strong and the actual demands of users are better met.
Description
Technical field
The utility model relates to a kind of isolating switch, more particularly, relates to a kind of isolating switch for pre-paying kilowatt-hour meter.
Background technology
Along with deepening constantly of national grid transformation, the use of this electric power meter of pre-paying kilowatt-hour meter is also more and more universal, and people's electricity consumption idea also changes thereupon, and after first power purchase, the consumption pattern of electricity consumption has started to enter people's life.But existing pre-paying kilowatt-hour meter definite purpose circuit breaker is by the voltage signal of judgement ammeter signal detection line, when its magnitude of voltage circuit breaker tripping during lower than a certain particular value.Because the voltage signal of ammeter signal detection line is identical with supply voltage, when supply voltage is because certain is former thereby cause decompression or when under-voltage, the voltage signal of ammeter signal detection line is also with its reduction, causing pre-paying kilowatt-hour meter definite purpose circuit breaker is not because of electric supply meter arrearage and false tripping, and it is very inconvenient to user's use, to bring; Due to the delayed releasing circuit of existing pre-paying kilowatt-hour meter definite purpose circuit breaker, generally adopt the form of series connection simultaneously, because electrical apparatus release L1 is connected in circuit in long-term work state, greatly reduce the basic demand that product reliability and security are used.
Utility model content
The technical problems to be solved in the utility model is, said system security for prior art is low, reliability is low, when supply voltage is because certain is former thereby cause decompression or when under-voltage, the voltage signal of ammeter signal detection line is also with its reduction, causing pre-paying kilowatt-hour meter definite purpose circuit breaker is not because of electric supply meter arrearage and false tripping, to user, use and bring very inconvenient defect, a kind of isolating switch for pre-paying kilowatt-hour meter is provided, comprise: power circuit, the described isolating switch for pre-paying kilowatt-hour meter also comprises:
Delayed releasing circuit;
Voltage detecting circuit;
Ammeter signal deteching circuit;
Wherein, described delayed releasing circuit is connected with described power circuit, voltage detecting circuit respectively, and described ammeter signal deteching circuit is connected with described voltage detecting circuit.
At the isolating switch for pre-paying kilowatt-hour meter described in the utility model, described delayed releasing circuit is by diode D2, D3, resistance R 6, R7, and capacitor C 2, C3, controllable silicon Q1 and electrical apparatus release L1 form.
At the isolating switch for pre-paying kilowatt-hour meter described in the utility model, described voltage detecting circuit is comprised of divider resistance R3, R4 and transistor Q2.
At the isolating switch for pre-paying kilowatt-hour meter described in the utility model, described ammeter signal deteching circuit is by resistance R 1, R2, diode D5, and capacitor C 1 and transistor Q3 form.
At the isolating switch for pre-paying kilowatt-hour meter described in the utility model, described power circuit is comprised of voltage dependent resistor (VDR) RV1, commutation diode D1, current-limiting resistance R5 and voltage stabilizing diode D4.
Implement the isolating switch for pre-paying kilowatt-hour meter of the present utility model, have following beneficial effect: security of system is high, reliability is high, and whole circuit design is simple, and anti-electromagnetic compatibility characteristic is strong, more meets user's actual demand.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is for the embodiment schematic diagram of the isolating switch of pre-paying kilowatt-hour meter in prior art;
Fig. 2 is that the utility model is for the schematic diagram of isolating switch one embodiment of pre-paying kilowatt-hour meter.
Embodiment
Refer to Fig. 1, in prior art for the embodiment schematic diagram of the isolating switch of pre-paying kilowatt-hour meter.As shown in Figure 1, existing pre-paying kilowatt-hour meter definite purpose circuit breaker is by the voltage signal of judgement ammeter signal detection line, when its magnitude of voltage circuit breaker tripping during lower than a certain particular value.Because the voltage signal of ammeter signal detection line is identical with supply voltage, when supply voltage is because certain is former thereby cause decompression or when under-voltage, the voltage signal of ammeter signal detection line is also with its reduction, causing pre-paying kilowatt-hour meter definite purpose circuit breaker is not because of electric supply meter arrearage and false tripping, and it is very inconvenient to user's use, to bring; Due to the delayed releasing circuit of existing pre-paying kilowatt-hour meter definite purpose circuit breaker, generally adopt the form of series connection simultaneously.
Incorporated by reference to consulting Fig. 2, be the schematic diagram of utility model for an embodiment of the isolating switch of pre-paying kilowatt-hour meter.As shown in Figure 2, at least comprise power circuit, delayed releasing circuit, voltage detecting circuit, ammeter signal deteching circuit, wherein, described delayed releasing circuit is connected with described power circuit, voltage detecting circuit respectively, and described ammeter signal deteching circuit is connected with described voltage detecting circuit.Voltage detecting circuit is comprised of divider resistance R3, R4 and transistor Q2, and the arrearage of false judgment ammeter causes isolating switch false tripping because supply voltage reduces to avoid pre-paying kilowatt-hour meter definite purpose circuit breaker; Power circuit is comprised of voltage dependent resistor (VDR) RV1, commutation diode D1, current-limiting resistance R5 and voltage stabilizing diode D4; Delayed releasing circuit is by diode D2, D3, resistance R 6, R7, capacitor C 2, C3, controllable silicon Q1 and electrical apparatus release L1 form, avoid traditional tandem type delayed releasing circuit, because electrical apparatus release is connected in circuit in long-term "on" position, cause product reliability and security to reduce; Ammeter signal deteching circuit is by resistance R 1, R2, diode D5, and capacitor C 1 and transistor Q3 form.
By the design of the utility model one embodiment, there is following beneficial effect: one, adopt voltage detecting circuit, can effectively solve supply voltage because certain is former thereby decompression or when under-voltage, cause pre-paying kilowatt-hour meter definite purpose circuit breaker not to be and thread off because of the trip signal that electric supply meter arrearage is sent, it is very inconvenient to user's use, to bring; Two, adopt parallel connection type delayed releasing circuit can effectively solve existing tandem type delayed releasing circuit because the long-term energising of electrical apparatus release causes reliability and the low defect of security; Whole circuit design is simple, and anti-electromagnetic compatibility characteristic is strong, more meets user's actual demand.
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 domain the utility model.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises all embodiment that drop into claim protection domain.
Claims (4)
1. for an isolating switch for pre-paying kilowatt-hour meter, comprising: power circuit, it is characterized in that, the described isolating switch for pre-paying kilowatt-hour meter also comprises:
Delayed releasing circuit;
Voltage detecting circuit;
Ammeter signal deteching circuit;
Wherein, described delayed releasing circuit is connected with described power circuit, voltage detecting circuit respectively, described ammeter signal deteching circuit is connected with described voltage detecting circuit, described delayed releasing circuit is by diode D2, D3, resistance R 6, R7, capacitor C 2, C3, controllable silicon Q1 and electrical apparatus release L1 form.
2. the isolating switch for pre-paying kilowatt-hour meter according to claim 1, is characterized in that, described voltage detecting circuit is comprised of divider resistance R3, R4 and transistor Q2.
3. the isolating switch for pre-paying kilowatt-hour meter according to claim 2, is characterized in that, described ammeter signal deteching circuit is by resistance R 1, R2, diode D5, and capacitor C 1 and transistor Q3 form.
4. according to the isolating switch for pre-paying kilowatt-hour meter described in claims 1 to 3 any one, it is characterized in that, described power circuit is comprised of voltage dependent resistor (VDR) RV1, commutation diode D1, current-limiting resistance R5 and voltage stabilizing diode D4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419648.3U CN203397430U (en) | 2013-07-15 | 2013-07-15 | Circuit breaker for prepaid electricity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419648.3U CN203397430U (en) | 2013-07-15 | 2013-07-15 | Circuit breaker for prepaid electricity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397430U true CN203397430U (en) | 2014-01-15 |
Family
ID=49908948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320419648.3U Expired - Fee Related CN203397430U (en) | 2013-07-15 | 2013-07-15 | Circuit breaker for prepaid electricity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732664A (en) * | 2015-04-09 | 2015-06-24 | 长城电器集团有限公司 | Novel pre-pay electricity meter breaker circuit |
| CN107230972A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | Breaker multiphase power-supply circuit |
-
2013
- 2013-07-15 CN CN201320419648.3U patent/CN203397430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732664A (en) * | 2015-04-09 | 2015-06-24 | 长城电器集团有限公司 | Novel pre-pay electricity meter breaker circuit |
| CN107230972A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | Breaker multiphase power-supply circuit |
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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 | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder | ||
| 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20200715 |