CN203813405U - Novel high-reliability anti-electricity-stealing miniature circuit breaker for corridor induction lamp - Google Patents
Novel high-reliability anti-electricity-stealing miniature circuit breaker for corridor induction lamp Download PDFInfo
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- CN203813405U CN203813405U CN201420204496.XU CN201420204496U CN203813405U CN 203813405 U CN203813405 U CN 203813405U CN 201420204496 U CN201420204496 U CN 201420204496U CN 203813405 U CN203813405 U CN 203813405U
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Abstract
The utility model provides a novel high-reliability anti-electricity-stealing miniature circuit breaker for a corridor induction lamp. The miniature circuit breaker includes a current sampling circuit, an action circuit and a single-chip microcomputer. A sampling end of the current sampling circuit is connected with the action circuit. An output end of the current sampling circuit is connected with an input end of the single-chip microcomputer. An output end of the single-chip microcomputer is connected with the action circuit. Two reverse diodes, D1 and D2, are connected in series between an input end of the current sampling circuit and an input pin GND of the single-chip microcomputer so as to convert an input alternating current signal into a direct current signal. The diode D1, by connecting in series with a current-limiting resistor R5, is connected to a pin P 3.5 of the single-chip microcomputer. The diode D2 is connected in parallel with a capacitor C5 and a capacitor C6 to serve as a voltage stabilizing circuit, and the diode D2 is connected in parallel with a resistor R8 and a Zener diode Z2 at two ends of the capacitor C6 and a resistor R7. Aiming at the impedance characteristic of an electrical appliance, the miniature circuit breaker utilizes a simple combination of capacitors and resistors to fulfill a function of rectification and sampling of output alternating current, and thus the cost of the miniature circuit breaker is reduced and the reliability of the miniature circuit breaker is improved.
Description
Technical field
The utility model belongs to miniature circuit breaker device, is specifically related to a kind of miniature circuit breaker with anti-stealing electricity function.
Background technology
Residential quarter residential building is all installed corridor sensing lamp at present, conventionally corridor sensing lamp goes out special circuit after by concentrated gas meter box master switch and powers, supply line adopts " trunk formula " mode of connection, main line is by after control switch (miniature circuit breaker), supply power to attic from 1st floor, each floor sense light is connected on main line.Corridor sensing lamp belongs to communal facility, and some regional corridor sensing lamps are not all installed gauge table, and its electric energy consuming is born by the corridor each household resident form that monthly payment certain 1 is spent the electricity charge.Opposing electricity-stealing in inspection that residential quarter is carried out, find that part resident family utilizes corridor sensing lamp not fill the feature of table metering, privately power consumption equipment in family is connected to the enterprising electricity of committing theft of sense light supply main, although can judge and whether have user to pass through the stealing of corridor sensing lamp from the miniature circuit breaker side size of current of control sense light, but, being found to the end is which user is special-purpose very difficult with electric line stealing by corridor sensing lamp, how to take effective method, preventing that user from passing through this mode stealing, is a difficulties of current anti-electricity-theft work.
Because user utilizes disguise and the difficult treatment of the stealing of corridor sensing lamp, therefore, be necessary to study new technological means, address the above problem.Very large difference of the electricity consumption of corridor sensing lamp and residential electricity consumption is: the corridor sensing lamp electricity consumption duration is short, is generally interruption electricity consumption, and the residential electricity consumption duration is long, is generally continuous electricity consumption.For this feature, can develop a kind of novel miniature circuit breaker, control corridor sensing lamp power-on time, when not affecting the use of corridor sensing lamp, make the electricity consumption continuously of stealing family, thereby realize the function of opposing electricity-stealing.
Utility model content
Technical problem to be solved in the utility model is to provide the more reliable novel high reliability corridor sensing lamp of a kind of performance anti-electricity-theft miniature circuit breaker.
The utility model is to realize like this, the anti-electricity-theft miniature circuit breaker of a kind of novel high reliability corridor sensing lamp, comprise current sampling circuit, actuating circuit and single-chip microcomputer, current sampling circuit sampling end is connected with actuating circuit, the output of current sampling circuit is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with actuating circuit, the on off state of the Current Control actuating circuit that single-chip microcomputer gathers by circuit sample circuit, between the input pin GND of the input of described current sampling circuit and single-chip microcomputer, connect two reverse diode D1 and diode D2 as the AC signal of input is converted to direct current signal, diode D1 is connected on the pin P3.5 of single-chip microcomputer by the current-limiting resistance R5 that connects, diode D2 above passes through shunt capacitance C5 and capacitor C 6 as voltage stabilizing circuit, a two ends resistance R 8 in parallel and a voltage stabilizing didoe Z2 in capacitor C 6 with resistance R 7.
Further, described actuating circuit comprises bidirectional thyristor and zero cross fired thyristor, one current-limiting resistance R9 is connected to the input of zero cross fired thyristor by a light-emitting diode, the other end of current-limiting resistance R9 is connected with the output of single-chip microcomputer, one output of zero cross fired thyristor is connected to the first anode of bidirectional thyristor by bidirectional triode thyristor gate electrode resistance R10, the first anode of bidirectional thyristor is connected with current sampling circuit sampling end as sampling point, another output of zero cross fired thyristor is divided into two-way, the current-limiting resistance R12 of leading up to is connected to the second plate of bidirectional thyristor, another road is directly connected to the control of bidirectional thyristor and extremely goes up, the second plate of bidirectional thyristor connects load.
Further, the control terminal KZ of described single-chip microcomputer is connected with the current-limiting resistance of actuating circuit, and lead-out terminal LE connects resistance R 5 ground connection after connecting a light-emitting diode.
Further, the model of bidirectional thyristor is BTA20800B type controllable silicon, and the model of zero cross fired thyristor is MOC3061.
The utility model compared with prior art, beneficial effect is: improvements of the present utility model are the improvement to the circuit structure of actuating circuit and sample circuit, the effect of the function of single-chip microcomputer does not belong to the improved place of the utility model, the utility model sample circuit is compared with traditional sampling circuit, do not adopt the current transformer that easily produces error and fault, impedance operator for most of electrical appliance, used simple electric capacity and resistance combination to reach the function of output AC electric current being carried out to rectification sampling, further reduced installation cost, improved device reliability.
The actuating circuit and the sample circuit that adopt the utility model design, volume is little, and easy to use and flexible is low in energy consumption, and reliability is high, can long-time continuous repeatedly move, and accommodative ability of environment is strong.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the anti-electricity-theft miniature circuit breaker of a kind of high reliability corridor sensing lamp, comprise current sampling circuit 3, actuating circuit 2 and single-chip microcomputer 6, current sampling circuit 3 sampling ends are connected with actuating circuit 2, the output of current sampling circuit 3 is connected with the input of single-chip microcomputer 6, the output of single-chip microcomputer 6 is connected with actuating circuit 2, the on off state of the Current Control actuating circuit that single-chip microcomputer 6 gathers by circuit sample circuit 3, improved place is, actuating circuit 2 comprises bidirectional thyristor BAT20800B and zero cross fired thyristor MOC3061, one current-limiting resistance R9 is connected to the input of zero cross fired thyristor MOC3061 by a LED, the other end of current-limiting resistance R9 is connected with the output of single-chip microcomputer 6, an output of zero cross fired thyristor MOC3061 is connected to the first anode A1 (pin 1) of bidirectional thyristor BAT20800B by bidirectional triode thyristor gate electrode resistance R10, bidirectional triode thyristor gate electrode resistance R10 can improve bidirectional triode thyristor antijamming capability, the first anode of bidirectional thyristor BAT20800B is connected with current sampling circuit sampling end as sampling point, another output of zero cross fired thyristor MOC3061 is divided into two-way, the current-limiting resistance R12 of leading up to is connected to the second plate (pin 2) of bidirectional thyristor BAT20800B, another road is directly connected on the control utmost point G of bidirectional thyristor BAT20800B, the second plate of bidirectional thyristor BAT20800B (pin 2) connects load.
Under normal circumstances, the Continuity signal of the control utmost point (pin 3) of zero cross fired SCR-output pin 4 output access bidirectional thyristor BAT20800B, the first anode of bidirectional thyristor BAT20800B and second plate conducting, electrical appliance that anti-electricity-theft miniature circuit breaker is with is in normal power supply state; After the control signal that Single-chip Controlling end pin KZ sends, the infrarede emitting diode action of zero cross fired thyristor MOC3061, the inner bidirectional triode thyristor of zero cross fired thyristor, the pin 4 of controlling zero cross fired thyristor interrupts the Continuity signal of the control utmost point (pin 3) of access bidirectional thyristor BAT20800B, the first anode of bidirectional thyristor BAT20800B and second plate are ended to be communicated with, and electrical appliance that anti-electricity-theft miniature circuit breaker is with is ended power supply.
Between the input pin GND of the input of current sampling circuit 3 and single-chip microcomputer 6, connect two reverse diode D1 and diode D2 as the AC signal of input is converted to direct current signal, diode D1 is connected on the pin P3.5 of single-chip microcomputer by the current-limiting resistance R5 that connects, diode D2 above passes through shunt capacitance C5 and capacitor C 6 as voltage stabilizing circuit, a two ends resistance R 8 in parallel and a voltage stabilizing didoe Z2 in capacitor C 6 with resistance R 7, contact resistance R6 between the pin VCC of single-chip microcomputer and pin P3.5, at pin VCC termination power 1.
The control terminal KZ of single-chip microcomputer 6 is connected with the current-limiting resistance R9 of actuating circuit 2, and lead-out terminal LE connects resistance R 5 ground connection after connecting a light-emitting diode.In the present embodiment, the model of bidirectional thyristor is BTA20800B type controllable silicon, and the model of zero cross fired thyristor is MOC3061.
Pin TX and pin RX connectivity port setting unit 5 at single-chip microcomputer, arrange required threshold value by port setting unit.Between the pin GND of single-chip microcomputer and input pin RX, be connected button KEY, button is when pressing, and single-chip microcomputer restarts.
Whole device action principle is as follows: when circuit breaker is unloaded, bidirectional thyristor BAT20800B is in conducting state, while connecing electrical appliance electricity consumption after circuit breaker, current sampling circuit 3 output direct current signals enter single-chip microcomputer, single-chip microcomputer starts timing, surpass after built-in Preset Time (60S), there is the conversion of level in the control terminal KZ of single-chip microcomputer, zero cross fired thyristor receives after the conversion information of level, the conducting of its output (pin 4) output bidirectional thyristor is ended, bidirectional thyristor cuts off circuit, ends the power supply to load.Or when inverter surpasses 3A by electric current, the corresponding increase of current sampling circuit output current, surpasses single-chip microcomputer inner setting threshold values, Single-chip Controlling terminal KZ immediately level transforms, and ends the normal power supply to load.After load supplying is ended, single-chip microcomputer P3.5 terminal is inputted without direct current signal, and Single-chip Controlling terminal KZ is after Preset Time 2S, control signal stops output, zero cross fired thyristor (pin 4) recovering state, bidirectional thyristor turning circuit, the normal power supply of load recovers.If now load electricity consumption, continues above-mentioned flow process.
The control of the single-chip microcomputer relating in above-mentioned belongs to the existing method in this area, the utility model does not have improved sending out to this control procedure, and above-mentioned explanation is to understand the application of actuating circuit and current sampling circuit and a kind of further explanation of the course of work for the ease of these those skilled in the art.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. the anti-electricity-theft miniature circuit breaker of novel high reliability corridor sensing lamp, comprise current sampling circuit, actuating circuit and single-chip microcomputer, current sampling circuit sampling end is connected with actuating circuit, the output of current sampling circuit is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with actuating circuit, the on off state of the Current Control actuating circuit that single-chip microcomputer gathers by circuit sample circuit, it is characterized in that, between the input pin GND of the input of described current sampling circuit and single-chip microcomputer, connect two reverse diode D1 and diode D2 as the AC signal of input is converted to direct current signal, diode D1 is connected on the pin P3.5 of single-chip microcomputer by the current-limiting resistance R5 that connects, diode D2 above passes through shunt capacitance C5 and capacitor C 6 as voltage stabilizing circuit, a two ends resistance R 8 in parallel and a voltage stabilizing didoe Z2 in capacitor C 6 with resistance R 7.
2. the anti-electricity-theft miniature circuit breaker of novel high reliability corridor sensing lamp as claimed in claim 1, it is characterized in that, described actuating circuit comprises bidirectional thyristor and zero cross fired thyristor, one current-limiting resistance R9 is connected to the input of zero cross fired thyristor by a light-emitting diode, the other end of current-limiting resistance R9 is connected with the output of single-chip microcomputer, one output of zero cross fired thyristor is connected to the first anode of bidirectional thyristor by bidirectional triode thyristor gate electrode resistance R10, the first anode of bidirectional thyristor is connected with current sampling circuit sampling end as sampling point, another output of zero cross fired thyristor is divided into two-way, the current-limiting resistance R12 of leading up to is connected to the second plate of bidirectional thyristor, another road is directly connected to the control of bidirectional thyristor and extremely goes up, the second plate of bidirectional thyristor connects load.
3. the anti-electricity-theft miniature circuit breaker of novel high reliability corridor sensing lamp as claimed in claim 1, it is characterized in that, the control terminal KZ of described single-chip microcomputer is connected with the current-limiting resistance of actuating circuit, and lead-out terminal LE connects resistance R 5 ground connection after connecting a light-emitting diode.
4. the anti-electricity-theft miniature circuit breaker of novel high reliability corridor sensing lamp as claimed in claim 1, is characterized in that, the model of bidirectional thyristor is BTA20800B type controllable silicon, and the model of zero cross fired thyristor is MOC3061.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204496.XU CN203813405U (en) | 2014-04-24 | 2014-04-24 | Novel high-reliability anti-electricity-stealing miniature circuit breaker for corridor induction lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204496.XU CN203813405U (en) | 2014-04-24 | 2014-04-24 | Novel high-reliability anti-electricity-stealing miniature circuit breaker for corridor induction lamp |
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| Publication Number | Publication Date |
|---|---|
| CN203813405U true CN203813405U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420204496.XU Expired - Fee Related CN203813405U (en) | 2014-04-24 | 2014-04-24 | Novel high-reliability anti-electricity-stealing miniature circuit breaker for corridor induction lamp |
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| CN (1) | CN203813405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861197A (en) * | 2019-03-08 | 2019-06-07 | 武汉市路灯管理服务中心 | Anti- alternating current grid-connecting apparatus for DC power-supply system |
-
2014
- 2014-04-24 CN CN201420204496.XU patent/CN203813405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861197A (en) * | 2019-03-08 | 2019-06-07 | 武汉市路灯管理服务中心 | Anti- alternating current grid-connecting apparatus for DC power-supply system |
| CN109861197B (en) * | 2019-03-08 | 2024-09-10 | 武汉市路灯管理服务中心 | AC-proof grid-connected device for DC power supply system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140903 Termination date: 20210424 |