CN201846057U - Circuit breaker for preventing voltage loss on zero lines - Google Patents
Circuit breaker for preventing voltage loss on zero lines Download PDFInfo
- Publication number
- CN201846057U CN201846057U CN2010206130928U CN201020613092U CN201846057U CN 201846057 U CN201846057 U CN 201846057U CN 2010206130928 U CN2010206130928 U CN 2010206130928U CN 201020613092 U CN201020613092 U CN 201020613092U CN 201846057 U CN201846057 U CN 201846057U
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- circuit breaker
- zero line
- high potential
- prevents
- voltage
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Abstract
The utility model relates to a circuit breaker for preventing voltage loss on zero lines, which comprises a circuit breaker body, a first voltage storage unit, a second voltage storage unit, a maintaining type actuating unit and a selecting unit. The circuit breaker body comprises a detection unit which is used for detecting on-off statuses of a zero line and outputting a detection signal, the first voltage storage unit obtains voltage from a phase line and is provided with a first high potential output end, the second voltage storage unit obtains voltage from the phase line and is provided with a second high potential output end, the maintaining type actuating unit generates actions of closing or opening the circuit breaker body by means of receiving positive or negative voltage and holds mode before a voltage direction is changed, and the selecting unit is used for selecting positive power supply to the maintaining type actuating unit from the first high potential output end or negative power supply to the maintaining type actuating unit from the second high potential output end.
Description
Technical field
The utility model relates to a kind of anti-electricity-theft product, particularly be a kind of being used in the payment system, prevent that the people from for cutting off zero line, causing the circuit breaker of zero line decompression.
Background technology
Switch switchgear for power department, be to guarantee Electrical Safety, carry out circuit and switch imperative equipment, it can be applied to high pressure also can be applied to the low pressure operating mode, can be arranged on the single-phase electricity line of force also can be arranged on the three-phase power line, here be referred to as breaker body with existing circuit breaker, it has cut-out function at least, and the function that receives the external control signal by the external control line.
Wherein, for zero line, it offers the power supply of breaker body inner control circuit often, in case zero line is cut off, then control circuit loses the power supply supply, and then circuit breaker just has been difficult to exist except the additional function of basic cut-out function.
To open more and more the application as payment system increasing to the demand of this class circuit breaker along with the requirement of intelligent electrical network in addition: under the situation that the external control line of circuit breaker breaks, often can not influence user's electricity consumption, but the problem of bringing but for management of power use department, particularly some users are under the situation that pre-payment is installed, deliberately with the external control line or substitute regular tap for another surreptitiously, this has greatly influenced normal electricity consumption order.
Particularly under the situation of outage zero line or external control line are cut off, then existing circuit breaker can't be reacted especially.
In view of above-mentioned defective, the utility model creator is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The purpose of this utility model is, a kind of circuit breaker that prevents the zero line decompression is provided, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution adopted in the utility model is, a kind of circuit breaker that prevents the zero line decompression is provided, and it comprises: a breaker body is characterized in that it comprises:
One detecting unit, it is in order to detect the zero line on off operating mode and to export a detection signal;
The unit is pressed in one first storage, and it obtains voltage from phase line, and has one first high potential output;
The unit is pressed in one second storage, and it obtains voltage from phase line, and has one second high potential output;
One maintenance performance element, it is by receiving voltage forward or backwards, thereby produces closed or disconnect the action of described breaker body, and before voltage direction changes hold mode;
One selected cell, it is oppositely powered to described maintenance performance element to the described maintenance performance element forward power supply or the second high potential output by the described first high potential output in order to selection.
Wherein, described detecting unit is a zero line voltage detecting circuit, and it comprises:
Be provided with first earth point and first analogue ground point at zero line;
One rectification, filtering and voltage stabilizing electronic circuit, it obtains voltage signal from described phase line;
One first resistance, its first end is made as second earth point, and its second end is connected with second analogue ground point with described rectification, filtering and voltage stabilizing electronic circuit output.
Wherein, described first storage presses the unit to comprise: one first diode and first electric capacity that is in series with it, described first diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described first electric capacity, one end is the described first high potential output, its other end ground connection.
Wherein, described second storage presses the unit to comprise: one second diode and second electric capacity that is in series with it, described second diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described second electric capacity, one end is the described second high potential output, its other end ground connection.
Preferable, described maintenance performance element has the forward end and the end of oppisite phase of definite direction of action, and it is magnetic retentivity release or motor.
Wherein, described selected cell comprises:
One switch control device, it receives the detection signal of described detecting unit;
One switch motion device, it switches in order to described maintenance performance element forward end is pressed between the first high potential output of unit and the earth point in described first storage, simultaneously described maintenance performance element backward end is pressed in earth point and described second storage between the second high potential output of unit to switch.
Preferable, described switch control device is one first triode or microrelay, the control end of described on-off controller is connected with second end of described first resistance.
Preferable, also comprise: one the 3rd energy-storage units, it comprises: one the 3rd diode and the 3rd electric capacity that is in series with it, described the 3rd diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described the 3rd electric capacity one end is described the 3rd high potential output, its other end ground connection.
Wherein, described switch motion device is a relay, and the one end is connected with described the 3rd high potential output, and its other end is connected with described switch control device.
Preferable, also comprise: one the 4th energy-storage units, it comprises: one the 4th electric capacity, one end ground connection, its other end is connected with described rectification, filtering and voltage stabilizing electronic circuit output.
Preferable, also comprise: an external control unit, it comprises: a trigger device, it obtains the outside control signal, thereby exports a triggering signal, and the output of described triggering signal is connected with the control end of described switch control device.
Preferable, described trigger device is one second triode, and its base stage receives described control signal, and its collector electrode is connected with described rectification, filtering and the control end of voltage stabilizing electronic circuit output and switch control device respectively, its grounded emitter.
The beneficial effects of the utility model are compared with the prior art, can be effectively when zero line decompression and external control line are cut off, make described circuit breaker produce the action of opening circuit.
Description of drawings
Fig. 1 prevents the circuit breaker functional block diagram of zero line decompression for the utility model;
Fig. 2 prevents the cutaway view of the circuit breaker of zero line decompression for the utility model;
Fig. 3 prevents the circuit diagram enforcement one of the circuit breaker of zero line decompression for the utility model;
Fig. 4 prevents the circuit diagram enforcement two of the circuit breaker of zero line decompression for the utility model.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage utility model is above-mentioned.
See also shown in Figure 1ly, it prevents the circuit breaker functional block diagram of zero line decompression for the utility model; The described circuit breaker 1 that prevents the zero line decompression, it comprises: a breaker body 12 comprises in described breaker body 12: a detecting unit 11, it is in order to detect the zero line on off operating mode and to export a detection signal; Unit 13 is pressed in one first storage, and it obtains voltage from phase line L, and has one first high potential output; Unit 16 is pressed in one second storage, and it obtains voltage from phase line L, and has one second high potential output; One maintenance performance element 14, it is by receiving voltage forward or backwards, thereby produces closed or disconnect the action of described breaker body 12, and before voltage direction changes hold mode; One selected cell 15, it receives described detection signal, and is oppositely powered to described maintenance performance element 14 to the described maintenance performance element 14 forwards power supply or the second high potential output by the described first high potential output in order to selection.
See also shown in Figure 2ly, it prevents the cutaway view of the circuit breaker of zero line decompression for the utility model; Wherein said detecting unit 11, first storage press unit 13, second storage to press unit 16 and selected cell 15 its controlling functions with circuit breaker partly to be arranged on the circuit board 121 in the described breaker body 12, described maintenance performance element 14 has forward end and the end of oppisite phase of determining direction of action according to current direction, and it is magnetic retentivity release or motor.Should be to have and have more that power direction is stretched out or the function of withdrawing for the magnetism holding type release, and motor has the advantages that to realize rotating according to current direction, and what adopt for present embodiment is magnetic retentivity release 14, actuating mechanism 122 in its action output and the described breaker body 12 is adjacent, action by described maintenance performance element 14 makes described actuating mechanism 122 actions, and then described breaker body 12 generations are opened circuit or feed motion.
See also shown in Figure 3ly, it prevents the circuit diagram embodiment one of the circuit breaker of zero line decompression for the utility model, and described detecting unit is a zero line voltage detecting circuit, and it comprises: be provided with the first earth point A and the first analogue ground point B at zero line; One rectification, filtering and voltage stabilizing electronic circuit, it obtains voltage signal from described phase line; One first resistance R 6, its first end is made as second earth point, and its second end is connected with second analogue ground point with described rectification, filtering and voltage stabilizing electronic circuit output.
Described first storage presses the unit to comprise: one first diode D3 and first capacitor C 5 that is in series with it, the described first diode D3 is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described first capacitor C, 5 one ends are the described first high potential output, its other end ground connection.
Described second storage presses the unit to comprise: one second diode D4 and second capacitor C 6 that is in series with it, the described second diode D4 is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described second capacitor C, 6 one ends are the described second high potential output, its other end ground connection.
Described selected cell comprises: a switch control device, and it receives the detection signal of described detecting unit;
One switch motion device, it switches in order to described maintenance performance element forward end is pressed between the first high potential output of unit and the earth point in described first storage, simultaneously described maintenance performance element backward end is switched between the second high potential output of earth point and the described second storage pressure unit, maintenance performance element described here is magnetic retentivity release L1, also can adopt motor when allowing.
Described switch control device is first triode Q2 or the microrelay, the control end of described on-off controller is connected by diode D6 with second end of described first resistance R 6, that present embodiment is selected is the first triode Q2, and described control end is the base stage of the described first triode Q2.
Also comprise: one the 3rd energy-storage units, it comprises: one the 3rd diode D5 and the 3rd capacitor C 7 that is in series with it, described the 3rd diode D5 is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described the 3rd capacitor C 7 one ends are described the 3rd high potential output, its other end ground connection.
Described switch motion device is a relay J 1, and the one end is connected with described the 3rd high potential output, and its other end is connected with the described first triode Q2.
Also comprise: one the 4th energy-storage units, it comprises: one the 4th capacitor C 4, one end ground connection, its other end is connected with described rectification, filtering and voltage stabilizing electronic circuit output.
Also comprise: an external control unit, it comprises: a trigger device, it obtains the outside control signal, thereby exports a triggering signal, and the output of described triggering signal is connected with the base stage of the described first triode Q2.Described trigger device is one second triode Q1, and its base stage receives described control signal, and its collector electrode is connected its grounded emitter with the base stage of described rectification, filtering and voltage stabilizing electronic circuit output and the first triode Q2 respectively.
See also shown in Figure 4, its circuit diagram that prevents the circuit breaker of zero line decompression for the utility model implements two, with the difference of the foregoing description one be present embodiment be at three-phase line, the power supply supply of control section is by diode D12-D14, carry out rectification from three phase line a, b, c respectively and handle, but its operation principle and embodiment one with part is identical.
Its course of work is: the B point is analogue ground, is communicated with between AB, and the current potential that C, D are 2 is identical;
Open circuit between A, B, C point current potential is higher than D point current potential, and this moment, the first triode Q2 was switched on, and storage this moment the 3rd presses the 3rd capacitor C 7 and the described relay J 1 in the unit to form the closed-loop path, and this moment, magnetism holding type release L1 produced action; This moment, described second storage pressed the hot end of second capacitor C 6 in the unit and described magnetism holding type release L1 to form the closed-loop path, produces the action of threading off, and then described circuit breaker is opened circuit, and be in this state;
Connect between A, B, this moment, the current potential of 2 of C, D was identical, and the first not conducting of triode Q2 this moment, storage this moment the 3rd press the 3rd capacitor C 7 in the unit and described relay J 1 to form to open circuit, and relay J 1 resets; This moment, described first storage pressed the hot end of first capacitor C 5 in the unit and described magnetism holding type release L1 to form the closed-loop path, and this moment, magnetism holding type release L1 produced action, and then made described breaker closing; Described first capacitor C 5, second capacitor C 6, the 3rd capacitor C 7 are charged at this moment;
For external control unit, Kz end obtains the external control signal, when the external control signal is high potential, the described second triode Q1 conducting, thus the described first triode Q2 base stage because of electronegative potential by;
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.
Claims (12)
1. circuit breaker that prevents the zero line decompression, it comprises: a breaker body is characterized in that it comprises:
One detecting unit, it is in order to detect the zero line on off operating mode and to export a detection signal;
The unit is pressed in one first storage, and it obtains voltage from phase line, and has one first high potential output;
The unit is pressed in one second storage, and it obtains voltage from phase line, and has one second high potential output;
One maintenance performance element, it is by receiving voltage forward or backwards, thereby produces closed or disconnect the action of described breaker body, and before voltage direction changes hold mode;
One selected cell, it is oppositely powered to described maintenance performance element to the described maintenance performance element forward power supply or the second high potential output by the described first high potential output in order to selection.
2. the circuit breaker that prevents the zero line decompression according to claim 1 is characterized in that, described detecting unit is a zero line voltage detecting circuit, and it comprises:
Be provided with first earth point and first analogue ground point at zero line;
One rectification, filtering and voltage stabilizing electronic circuit, it obtains voltage signal from described phase line;
One first resistance, its first end is made as second earth point, and its second end is connected with second analogue ground point with described rectification, filtering and voltage stabilizing electronic circuit output.
3. the circuit breaker that prevents the zero line decompression according to claim 2, it is characterized in that, described first storage presses the unit to comprise: one first diode and first electric capacity that is in series with it, described first diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described first electric capacity, one end is the described first high potential output, its other end ground connection.
4. the circuit breaker that prevents the zero line decompression according to claim 2, it is characterized in that, described second storage presses the unit to comprise: one second diode and second electric capacity that is in series with it, described second diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described second electric capacity, one end is the described second high potential output, its other end ground connection.
5. the circuit breaker that prevents the zero line decompression according to claim 1 and 2 is characterized in that, described maintenance performance element has the forward end and the end of oppisite phase of definite direction of action, and it is magnetic retentivity release or motor.
6. the circuit breaker that prevents the zero line decompression according to claim 5 is characterized in that, described selected cell comprises:
One switch control device, it receives the detection signal of described detecting unit;
One switch motion device, it switches in order to described maintenance performance element forward end is pressed between the first high potential output of unit and the earth point in described first storage, simultaneously described maintenance performance element backward end is pressed in earth point and described second storage between the second high potential output of unit to switch.
7. the circuit breaker that prevents the zero line decompression according to claim 6 is characterized in that, described switch control device is one first triode or microrelay, and the control end of described on-off controller is connected with second end of described first resistance.
8. the circuit breaker that prevents the zero line decompression according to claim 7, it is characterized in that, also comprise: one the 3rd energy-storage units, it comprises: one the 3rd diode and the 3rd electric capacity that is in series with it, described the 3rd diode is connected with described rectification, filtering and voltage stabilizing electronic circuit output, described the 3rd electric capacity one end is described the 3rd high potential output, its other end ground connection.
9. the circuit breaker that prevents the zero line decompression according to claim 8 is characterized in that, described switch motion device is a relay, and the one end is connected with described the 3rd high potential output, and its other end is connected with described switch control device.
10. the circuit breaker that prevents the zero line decompression according to claim 2 is characterized in that, also comprises: one the 4th energy-storage units, and it comprises: one the 4th electric capacity, one end ground connection, its other end is connected with described rectification, filtering and voltage stabilizing electronic circuit output.
11. the circuit breaker that prevents the zero line decompression according to claim 9, it is characterized in that, also comprise: an external control unit, it comprises: a trigger device, it obtains the outside control signal, thereby export a triggering signal, the output of described triggering signal is connected with the control end of described switch control device.
12. the circuit breaker that prevents the zero line decompression according to claim 11, it is characterized in that, described trigger device is one second triode, its base stage receives described control signal, its collector electrode is connected with described rectification, filtering and the control end of voltage stabilizing electronic circuit output and switch control device respectively, its grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206130928U CN201846057U (en) | 2010-11-10 | 2010-11-10 | Circuit breaker for preventing voltage loss on zero lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206130928U CN201846057U (en) | 2010-11-10 | 2010-11-10 | Circuit breaker for preventing voltage loss on zero lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846057U true CN201846057U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206130928U Expired - Lifetime CN201846057U (en) | 2010-11-10 | 2010-11-10 | Circuit breaker for preventing voltage loss on zero lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035171A (en) * | 2010-11-10 | 2011-04-27 | 湖北盛佳电器设备有限公司 | Circuit breaker for preventing voltage loss of zero line |
-
2010
- 2010-11-10 CN CN2010206130928U patent/CN201846057U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035171A (en) * | 2010-11-10 | 2011-04-27 | 湖北盛佳电器设备有限公司 | Circuit breaker for preventing voltage loss of zero line |
| WO2012062045A1 (en) * | 2010-11-10 | 2012-05-18 | 湖北盛佳电器设备有限公司 | Breaker for preventing voltage loss of null line |
| CN102035171B (en) * | 2010-11-10 | 2014-04-30 | 湖北盛佳电器设备有限公司 | Circuit breaker for preventing voltage loss of zero line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20140430 |
|
| RGAV | Abandon patent right to avoid regrant |