CN102368457A - External control circuit breaker without dangerous suspended voltage - Google Patents
External control circuit breaker without dangerous suspended voltage Download PDFInfo
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- CN102368457A CN102368457A CN2011103479298A CN201110347929A CN102368457A CN 102368457 A CN102368457 A CN 102368457A CN 2011103479298 A CN2011103479298 A CN 2011103479298A CN 201110347929 A CN201110347929 A CN 201110347929A CN 102368457 A CN102368457 A CN 102368457A
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- circuit
- external control
- breaker
- circuit breaker
- control circuit
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Abstract
The invention discloses an external control circuit breaker without a dangerous suspended voltage. The external control circuit breaker comprises: a circuit breaker body, which is used to realize on and off of a line in which the external control circuit breaker without the dangerous suspended voltage is located; an external control unit; a suspension voltage control unit, which is used to ensure when the circuit breaker body is in an off state, a line output part of the circuit breaker body has no voltage to ground. The external control unit comprises: an external control signal receiving terminal, a power supply receiving terminal and a circuit break motion triggering part, wherein the power supply receiving terminal is connected with the line output part of the circuit breaker body so as to obtain electric power. The electric power is provided for the circuit break motion triggering part.
Description
Technical field
What the present invention relates to is a kind of external control circuit breaker, particularly be a kind of after breaker body produces the action of opening circuit, said breaker body circuit output does not have the external control circuit breaker that dangerous suspension voltage produces over the ground.
Background technology
Circuit breaker is a kind of important electric equipment of control circuit break-make, and " breaker body " that is limited among the present invention includes but not limited to miniature circuit breaker, mold cased circuit breaker etc. for having the circuit breaker that opens circuit basically with closure function.
Present development along with control technology, and the continuous reinforcement of management of power use department intensive management demand, the particularly popularization of pre-payment switch, the circuit breaker with external control function becomes the direction of a comparison main flow of circuit breaker development.
See also shown in Figure 1; It is the functional block diagram of external control circuit breaker in the prior art; Described existing external control circuit breaker comprises: a breaker body 11, and it is arranged on the circuit L, belongs to the break-make of circuit in order to the external control circuit breaker of realizing said no dangerous suspension voltage; The corresponding external circuit of its circuit inlet wire partial L-in; Its circuit outlet partial L-out correspondence circuit of registering one's residence; In the time of the needs repair apparatus, as long as described breaker body 11 parts are in off state, then circuit outlet partial L-out should not have voltage this moment over the ground theoretically;
One external control unit 12; It comprises: an external control signal receiving end 123, a power supply the receiving terminal 122 and action triggers parts 121 that open circuit; Wherein, Said power supply receiving terminal 122 is connected with the circuit output of said breaker body 11, supplies with the described action triggers parts 121 that open circuit in order to obtain electric power; Being applied to payment system with the external control circuit breaker is example, if described external control signal receiving end 123 receives external control signal cs, it can carry out corresponding step-down in external control unit inside, and the action triggers parts 121 that open circuit accordingly this moment do not produce action; In case but external control signal cs disappears, then be in conducting state, thereby its action this moment impels described breaker body 11 to produce the action of opening circuit for the described circuit that opens circuit action triggers parts 121 places.
So also there is hidden danger; When particularly the user initiatively will overhaul the circuit that external control circuit breaker self or outlet partly link to each other; Though this moment, breaker body 11 was in off state; On general theory, outlet partial L-out voltage to earth is zero, and the user touches the danger that does not have electric shock with hand; But because external control signal cs exists, it form electric current thereby between circuit outlet partial L-out and ground, produce voltage, but this moment, voltage and current was less at the ground and the circuit of formation between action triggers parts 121 and the power supply receiving terminal 122 that opens circuit; But because its resistance is diminished in the dropping resistor of external control unit internal circuit damage in use or control circuit board makes moist; Will make circuit outlet partial L-out form big electric current over the ground like this and wound the people, when repair apparatus, produce danger thereby cause.
In view of above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, a kind of external control circuit breaker that does not have dangerous suspension voltage is provided, in order to overcome above-mentioned technological deficiency.
Be to realize above-mentioned purpose, the technical scheme that the present invention adopts is that a kind of external control circuit breaker that does not have dangerous suspension voltage is provided, and it comprises: a breaker body, in order to the break-make of the external control circuit breaker place circuit of realizing said no dangerous suspension voltage;
One external control unit; It comprises: an external control signal receiving end, a power supply receiving terminal and the action triggers parts that open circuit; Wherein, said power supply receiving terminal is connected with the circuit output of said breaker body and obtains electric power and supply with the described action triggers parts that open circuit;
Also comprise: a suspension voltage control unit, when guaranteeing that said breaker body is in off state, the circuit output of said breaker body is no-voltage over the ground.
Wherein, described breaker body comprises:
One movable contact spring, its end has a moving contact;
One static contact, it is positioned at the circuit importation of said breaker body, said static contact have one with the corresponding fixed contact of described moving contact;
One disconnecting mechanism produces the closed action or the action of opening circuit through the operating element state that changes said breaker body, thereby said moving contact is contacted with fixed contact or separates.
Preferable; The said action triggers mechanism that opens circuit be motor or electromagnet one of them; The described action triggers mechanism that opens circuit is corresponding with a trigger part of described disconnecting mechanism; When the said action triggers mechanism place circuit that opens circuit is in channel status, trigger described disconnecting mechanism and produce the action of opening circuit.
The present invention is directed to described suspension voltage control unit two kinds of execution modes are provided; One of them described suspension voltage control unit is a switching device; It is arranged on the circuit at the described action triggers mechanism place of opening circuit; Described switching device and described operating element have relation of following up, promptly are in simultaneously to break off or closure state.
Two described suspension voltage control units wherein are an optical isolation, and it is arranged on the circuit at the described action triggers mechanism place of opening circuit.
Be with prior art beneficial effect more of the present invention: make described external control circuit breaker when breaking off, do not produce adventurous suspension voltage between its output and the ground, thereby improved the fail safe of electricity consumption and management.
Description of drawings
Fig. 1 is the functional block diagram of external control circuit breaker in the prior art of the present invention;
The functional block diagram of the external control circuit breaker of Fig. 2 dangerous suspension voltage for the present invention does not have;
The functional block diagram of the external control circuit breaker embodiment one of Fig. 3 A dangerous suspension voltage for the present invention does not have;
The functional block diagram of the external control circuit breaker embodiment two of Fig. 3 B dangerous suspension voltage for the present invention does not have;
The circuit diagram of the external control circuit breaker embodiment one of Fig. 4 A dangerous suspension voltage for the present invention does not have;
The circuit diagram of the external control circuit breaker embodiment two of Fig. 4 B dangerous suspension voltage for the present invention does not have.
Embodiment
Below in conjunction with accompanying drawing, do more detailed explanation with other technical characterictic and advantage to the present invention is above-mentioned.
It is emphasized that it is breaker body that the present invention uses what relate to, includes but not limited to miniature circuit breaker or mold cased circuit breaker.
See also shown in Figure 2, the functional block diagram of its external control circuit breaker of dangerous suspension voltage for the present invention does not have; The external control circuit breaker of described no dangerous suspension voltage, it comprises: a breaker body 11, in order to the break-make of the external control circuit breaker place circuit of realizing said no dangerous suspension voltage;
One external control unit 12, its outlet partial L-out from described breaker body 11 obtains power supply, after receiving external control signal cs, finally triggers described breaker body 11 and realizes opening circuit action;
The most crucial technical characterictic of the present invention is also to comprise: a suspension voltage control unit 13; When guaranteeing that said breaker body 11 is in off state; The circuit output L-out of said breaker body 11 is no-voltage over the ground, and main mode through isolation voltage realizes in the realization.
See also shown in Fig. 3 A the functional block diagram of its external control circuit breaker embodiment one of dangerous suspension voltage for the present invention does not have; That described suspension voltage control unit is selected is a switching device 13a, plays the effect of direct cut-out isolation voltage, electric current.Described external control unit comprises: an external control signal receiving end 123, a power supply the receiving terminal 122 and action triggers parts 121 that open circuit; Wherein, Said power supply receiving terminal 122 is connected with the circuit output L-out of said breaker body 11, supplies with the described action triggers parts 121 that open circuit in order to obtain electric power; Wherein, Described open circuit action triggers parts 121 can for motor or electromagnet one of them; The described action triggers mechanism 121 that opens circuit is corresponding with a trigger part of the disconnecting mechanism of described breaker body 11; When the said action triggers mechanism 121 place circuit that open circuit are in channel status and have electric current to flow through; Trigger described disconnecting mechanism and produce the action of opening circuit, formed a circuit between at this moment described power connector end 122, the action triggers that opens circuit mechanism 121 and the ground, described switching device 13a is arranged on this circuit; The operating element of itself and described breaker body 11 has relation of following up (interlock), and described operating element is that example can be handle with the microswitch; So said switching device 13a can be touch-switch; The travel switch or the relay of signal controlling (as far as large-scale circuit breaker) etc.; When described operating element is in off-state; This moment, described switching device 13a also was in off-state, thereby foregoing circuit is opened circuit, thereby played direct isolation cutting action.
See also shown in Fig. 3 B; The functional block diagram of its external control circuit breaker embodiment two of dangerous suspension voltage for the present invention does not have; Described suspension voltage control unit is an optical isolation 13b; It is arranged on the circuit at described action triggers mechanism 121 place of opening circuit, and the voltage with external control signal cs reduces greatly like this, thereby even guaranteed dropping resistor or control circuit board goes wrong; It remains safe, the optical isolation 13b that here is provided be photoelectrical coupler or photoelectric tube one of them.
See also shown in Fig. 4 A the circuit diagram of its external control circuit breaker embodiment one of dangerous suspension voltage for the present invention does not have; Described in the present embodiment switching device 13a has adopted touch-switch S, itself and the direct servo-actuated of operating element K (interlock), the electromagnet L 1 that the said action triggers parts 121 that open circuit here adopt; When described operating element K is in off-state; Described touch-switch S also is in off-state; So voltage is arranged over the ground or produce the problem of electric current with regard to the circuit output L-out that can not produce said breaker body 11, this is directly to isolate the cut-out mode; Touch-switch S also resets thereupon when described operating element K resets then, then can not influence the realization of corresponding external control function this moment.
See also shown in Fig. 4 B the circuit diagram of its external control circuit breaker embodiment two of dangerous suspension voltage for the present invention does not have; Described in the present embodiment optical isolation 13b has adopted photoelectrical coupler IC, and it directly is arranged in the circuit of external control unit; Because external control signal KZ has carried out filtering and rectification through diode D6 and capacitor C 5; Carried out the step-down processing through dropping resistor R3, R4 and R5; Thereby signal is added the input of being located at said photoelectrical coupler IC; This moment is very small from the voltage that said photoelectrical coupler IC output obtains; Even so in use described dropping resistor R1, R3, R4 goes wrong or control circuit board (in order to carry diagram electric device circuit) is damaged, can not produce the circuit output L-out that makes said breaker body 11 has the voltage of enough danger or electric current to produce over the ground, this is to isolate the mode that weakens; If said photoelectrical coupler IC outlet fault then directly causes external control unit to open circuit, this moment, effect was close with embodiment one, was exactly directly to isolate to cut off.
To sum up, be: make described external control circuit breaker when breaking off, do not produce adventurous suspension voltage between its output and the ground, thereby improved the fail safe of electricity consumption and management with prior art beneficial effect more of the present invention.
The above is merely preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.
Claims (7)
1. external control circuit breaker that does not have dangerous suspension voltage, it comprises:
One breaker body is in order to the break-make of the external control circuit breaker place circuit of realizing said no dangerous suspension voltage;
One external control unit; It comprises: an external control signal receiving end, a power supply receiving terminal and the action triggers parts that open circuit; Wherein, said power supply receiving terminal is connected with the circuit output of said breaker body and obtains electric power and supply with the described action triggers parts that open circuit;
It is characterized in that, also comprise: a suspension voltage control unit, when guaranteeing that said breaker body is in off state, the circuit output of said breaker body is no-voltage over the ground.
2. the external control circuit breaker of no dangerous suspension voltage according to claim 1 is characterized in that, described breaker body comprises:
One movable contact spring, its end has a moving contact;
One static contact, it is positioned at the circuit importation of said breaker body, said static contact have one with the corresponding fixed contact of described moving contact;
One disconnecting mechanism produces the closed action or the action of opening circuit through the operating element state that changes said breaker body, thereby said moving contact is contacted with fixed contact or separates.
3. the external control circuit breaker of no dangerous suspension voltage according to claim 2; It is characterized in that; The said action triggers mechanism that opens circuit be motor or electromagnet one of them; The described action triggers mechanism that opens circuit is corresponding with a trigger part of described disconnecting mechanism, when the said action triggers mechanism place circuit that opens circuit is in channel status, triggers described disconnecting mechanism and produces the action of opening circuit.
4. the external control circuit breaker of no dangerous suspension voltage according to claim 3; It is characterized in that; Described suspension voltage control unit is a switching device; It is arranged on the circuit at the described action triggers mechanism place of opening circuit, and described switching device and described operating element have relation of following up, promptly is in simultaneously and breaks off or closure state.
5. the external control circuit breaker of no dangerous suspension voltage according to claim 3 is characterized in that, described suspension voltage control unit is an optical isolation, and it is arranged on the circuit at the described action triggers mechanism place of opening circuit.
6. the external control circuit breaker of no dangerous suspension voltage according to claim 4 is characterized in that, described switching device is one of touch-switch, travel switch or relay.
7. the external control circuit breaker of no dangerous suspension voltage according to claim 5 is characterized in that, described optical isolation be photoelectrical coupler or photoelectric tube one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110347929.8A CN102368457B (en) | 2011-10-31 | 2011-10-31 | Without the external control circuit breaker of dangerous suspended voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110347929.8A CN102368457B (en) | 2011-10-31 | 2011-10-31 | Without the external control circuit breaker of dangerous suspended voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102368457A true CN102368457A (en) | 2012-03-07 |
| CN102368457B CN102368457B (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110347929.8A Expired - Fee Related CN102368457B (en) | 2011-10-31 | 2011-10-31 | Without the external control circuit breaker of dangerous suspended voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102368457B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08142779A (en) * | 1994-11-18 | 1996-06-04 | Kansei Corp | Switch circuit for vehicle |
| CN101425433A (en) * | 2007-11-01 | 2009-05-06 | 湖北盛佳电器设备有限公司 | Circuit breaker having secondary protection function |
| CN201656427U (en) * | 2009-10-20 | 2010-11-24 | 湖北盛佳电器设备有限公司 | Circuit breaker for preventing lines from breaking |
| CN202307724U (en) * | 2011-10-31 | 2012-07-04 | 湖北盛佳电器设备有限公司 | External control circuit breaker without dangerous suspended voltage |
-
2011
- 2011-10-31 CN CN201110347929.8A patent/CN102368457B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08142779A (en) * | 1994-11-18 | 1996-06-04 | Kansei Corp | Switch circuit for vehicle |
| CN101425433A (en) * | 2007-11-01 | 2009-05-06 | 湖北盛佳电器设备有限公司 | Circuit breaker having secondary protection function |
| CN201656427U (en) * | 2009-10-20 | 2010-11-24 | 湖北盛佳电器设备有限公司 | Circuit breaker for preventing lines from breaking |
| CN202307724U (en) * | 2011-10-31 | 2012-07-04 | 湖北盛佳电器设备有限公司 | External control circuit breaker without dangerous suspended voltage |
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| Publication number | Publication date |
|---|---|
| CN102368457B (en) | 2016-05-18 |
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Granted publication date: 20160518 Termination date: 20211031 |