CN101847862B - Detachable moulded case circuit breaker with mandatory protection function - Google Patents
Detachable moulded case circuit breaker with mandatory protection function Download PDFInfo
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- CN101847862B CN101847862B CN 201010188371 CN201010188371A CN101847862B CN 101847862 B CN101847862 B CN 101847862B CN 201010188371 CN201010188371 CN 201010188371 CN 201010188371 A CN201010188371 A CN 201010188371A CN 101847862 B CN101847862 B CN 101847862B
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- mandatory protection
- circuit breaker
- protection device
- breaker body
- intelligent controller
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Abstract
The invention relates to the technical field of the intelligent moulded case controller, in particular to a detachable moulded case circuit breaker with a mandatory protection function, which comprises a circuit breaker body, a signal connection wire, an intelligent controller and a mandatory protection device. The detachable moulded case circuit breaker is characterized in that the circuit breaker body is connected with the intelligent controller through the signal connection wire, and a groove which can be used for accommodating the mandatory protection device is arranged in the circuit breaker body; and the mandatory protection device is an independent device with a replay which consists of a digital circuit and is connected with a signal acquisition unit in the circuit breaker body through the output contact of the relay. Since the mandatory protection device is arranged in the circuit breaker shell without influence on the structure of the detachable circuit breaker, the detachable moulded case circuit breaker has the mandatory protection function, thereby avoiding that the circuit breaker is not protected, and greatly improving the reliability of the circuit breaker. The invention can be widely applied in the low-voltage moulded case circuit breaker with the intelligent controller.
Description
[technical field]
The present invention relates to the intelligent plastic housing controller technical field, specifically a kind of detachable moulded case circuit breaker with mandatory protection function.
[background technology]
The normal procedure intelligent breaker of plastic casing all is that signal gathering unit, protection action actuating mechanism, intelligent controller three parts are installed in the Shell of circuit breaker; but for fear of plastic case breaker casing impact on the part digital circuit under the abominable operational environment such as strong electromagnetic, temperature acute variation; and in order to expand the intelligent controller function, so the mode that adopts that breaker body separates with intelligent controller, is connected by signal connecting line between breaker body and the intelligent controller.
Yet also there is drawback in the mode that this breaker body separates with intelligent controller: in the actual moving process; owing to the reasons such as human error, signal connecting line are aging can cause the situation that intelligent controller is not worked or breaker body and intelligent controller do not connect; if this moment is with breaker closing; then circuit breaker just is under the unshielded state, has serious potential safety hazard.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, by a kind of mandatory protection device is installed in the Shell of circuit breaker, solved intelligent controller do not work or breaker body and situation that intelligent controller does not connect under, potential safety hazard during breaker closing.
In order to achieve the above object, the present invention proposes a kind of detachable moulded case circuit breaker with mandatory protection function, comprise breaker body, signal connecting line, intelligent controller, mandatory protection device, it is characterized in that: breaker body is connected with intelligent controller by signal connecting line, and the inside of breaker body is provided with can place the groove that the mandatory protection device is used; Described mandatory protection device is the self-contained unit that is provided with the digital circuit formation of relay, and passes through the intrinsic signal gathering unit of output contact connecting breaker of relay; The working power of described mandatory protection device obtains by signal gathering unit.
The working power of described relay is to be provided by signal connecting line by intelligent controller; Described mandatory protection device has mandatory protection function, and its workflow is as follows:
(a) beginning;
(b) judge whether intelligent controller works or breaker body is connected with intelligent controller and is connected, if then get back to beginning, then carry out if not next step judgement;
(c) judge whether breaker body closes a floodgate, then get back to if not previous step, if then carry out next step;
(d) mandatory protection device work;
(e) breaker body separating brake;
(f) finish.
Digital circuit in the described mandatory protection device adopts the SA555 chip, and its operating voltage is 12V.
The present invention is in the situation that does not affect the separate type breaker structure; to the mandatory protection device be installed in the Shell of circuit breaker; make it have mandatory protection function; thereby avoided circuit breaker to be in unshielded state; greatly improve the reliability of circuit breaker, can be widely used in the low pressure plastic casing type circuit breaker with intelligent controller.
[description of drawings]
Fig. 1 is structural representation of the present invention.
Fig. 2 is the workflow diagram of mandatory protection device among the present invention.
Fig. 3 is the circuit diagram that the mandatory protection device passes through signal gathering unit in the relay connecting breaker body among the present invention.
Fig. 4 is the circuit diagram of digital circuit in the mandatory protection device among the present invention.
Referring to Fig. 1,1 is breaker body; 2 is signal connecting line; 3 is intelligent controller; 4 is the mandatory protection device.
[embodiment]
Now by reference to the accompanying drawings the present invention is described further.
Participate in Fig. 1 and Fig. 3, the present invention includes breaker body 1, signal connecting line 2, intelligent controller 3 and mandatory protection device 4 four parts, breaker body 1 is connected with intelligent controller 3 by signal connecting line 2, the inside of breaker body 1 is provided with the groove that can place mandatory protection device 4 usefulness, also is provided with tripper, signal gathering unit etc. in the breaker body 1 in addition; The self-contained unit that mandatory protection device 4 consists of for the digital circuit that is provided with relay, and by the signal gathering unit in the output contact connecting breaker body 1 of relay.
The working power of this mandatory protection device 4 obtains by the signal gathering unit in the breaker body; and the switching of the output contact by relay realizes the open close of its working power; and the working power on the relay is provided by intelligent controller 3, and is delivered to mandatory protection device 4 in the circuit breaker wood body by signal connecting line 2.
As shown in Figure 4; digital circuit in the mandatory protection device 4 adopts the SA555 chip; 555 generators of commonly using; its operating voltage is 12V; its circuit is typical application circuit; No. 1 pin ground connection of chip; No. 8 pin access 12V input voltages; No. 4 pins that are used for resetting are through No. 8 pins of not gate access, and No. 2 pin divides two-way, and one the tunnel connects capacitor C 1 rear ground connection; another road connects the positive pole of diode D2; the input of the negative pole access resistance R 2 of diode D2, the output of resistance R 2 divides two-way, access 12V input voltage behind one road contact resistance R1; another road is accessed No. 7 pins and is connected the positive pole of diode D1; the negative pole of diode D1 connects No. 6 pins and No. 2 pins, and No. 5 pin connects capacitor C 2 rear ground connection, and No. 3 pin is signal output part and connects diode D3.
The mandatory protection device is a kind of independently device among the present invention, both can be placed in the groove of breaker body inside, also can take out placement; Here for the integrality that guarantees breaker of plastic casing and the consistency of outward appearance, mandatory protection device 4 is positioned in the groove of breaker body inside.
Be the workflow diagram of mandatory protection device among the present invention such as Fig. 2, mandatory protection device 4 has mandatory protection function, and its workflow is as follows:
(a) beginning.
(b) judge whether intelligent controller works or breaker body is connected with intelligent controller and is connected, if then get back to beginning, then carry out if not next step judgement; Be connected situation about connecting with intelligent controller when work under the intelligent controller end or breaker body occurring, relay is owing to then be in not operating state without working power, and this moment, the relay output contact was in normally off.
(c) judge whether breaker body closes a floodgate, then get back to if not previous step, if then carry out next step; In case breaker body closes a floodgate, then the mandatory protection device is in running order.
(d) mandatory protection device work continues to send periodic trip signal, makes the breaker body separating brake.
(e) breaker body separating brake, and can guarantee that breaker body can't close a floodgate.
(f) finish.
And ought be under normal circumstances; be that the in running order or breaker body of intelligent controller is connected with intelligent controller normally; this moment, relay was in running order; the output contact of relay is in normally open; then the mandatory protection device can not worked, and circuit breaker is under the guard mode of intelligent controller.
Claims (2)
1. detachable moulded case circuit breaker with mandatory protection function, comprise breaker body, signal connecting line, intelligent controller, mandatory protection device, it is characterized in that: breaker body (1) is connected with intelligent controller (3) by signal connecting line (2), and the inside of breaker body (1) is provided with the groove that can place mandatory protection device (4) usefulness;
The self-contained unit that described mandatory protection device (4) consists of for the digital circuit that is provided with relay, and by the signal gathering unit in the output contact connecting breaker body (1) of relay;
The working power of described mandatory protection device (4) obtains by signal gathering unit, and the working power of described relay is to be provided by signal connecting line (2) by intelligent controller (3);
Described mandatory protection device (4) has mandatory protection function, and its workflow is as follows:
(a) beginning;
(b) judge whether intelligent controller works or breaker body is connected with intelligent controller and is connected, if then get back to beginning, then carry out if not next step judgement;
(c) judge whether breaker body closes a floodgate, then get back to if not previous step, if then carry out next step;
(d) mandatory protection device work;
(e) breaker body separating brake;
(f) finish.
2. a kind of detachable moulded case circuit breaker with mandatory protection function according to claim 1 is characterized in that: the digital circuit in the described mandatory protection device (4) adopts the SA555 chip, and its operating voltage is 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188371 CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188371 CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101847862A CN101847862A (en) | 2010-09-29 |
| CN101847862B true CN101847862B (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010188371 Active CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN101847862B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257334A (en) * | 1999-12-16 | 2000-06-21 | 常熟开关厂 | Intelligent controller for communicable plastics casing circuit breaker |
| CN2819454Y (en) * | 2005-09-07 | 2006-09-20 | 河北宝凯电器有限公司 | Intelligent separated circuit breaker |
| CN101635230A (en) * | 2009-08-25 | 2010-01-27 | 上海磊跃自动化设备有限公司 | Low-pressure plastic shell circuit breaker capable of improving service life |
-
2010
- 2010-05-31 CN CN 201010188371 patent/CN101847862B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257334A (en) * | 1999-12-16 | 2000-06-21 | 常熟开关厂 | Intelligent controller for communicable plastics casing circuit breaker |
| CN2819454Y (en) * | 2005-09-07 | 2006-09-20 | 河北宝凯电器有限公司 | Intelligent separated circuit breaker |
| CN101635230A (en) * | 2009-08-25 | 2010-01-27 | 上海磊跃自动化设备有限公司 | Low-pressure plastic shell circuit breaker capable of improving service life |
Non-Patent Citations (1)
| Title |
|---|
| 张信明,万绍尤.基于分体式智能断路器的低压智能、可通信配电系统研发设想.《电气时代》.2007,(第2期), * |
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| Publication number | Publication date |
|---|---|
| CN101847862A (en) | 2010-09-29 |
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