CN217606759U - Circuit breaker divide-shut brake coil prevents burning protection device - Google Patents
Circuit breaker divide-shut brake coil prevents burning protection device Download PDFInfo
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- CN217606759U CN217606759U CN202221754348.6U CN202221754348U CN217606759U CN 217606759 U CN217606759 U CN 217606759U CN 202221754348 U CN202221754348 U CN 202221754348U CN 217606759 U CN217606759 U CN 217606759U
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Abstract
The utility model discloses a protection device is prevented burning out by circuit breaker divide-shut brake coil relates to circuit breaker coil relay protection technical field. The breaker opening and closing coil burnout prevention protection device comprises a breaker control circuit and an opening and closing coil protection device, wherein the breaker control circuit comprises an opening loop and a closing loop, the opening loop comprises an opening coil, the closing loop comprises a closing coil, and the opening and closing coil protection device comprises a closing coil protection loop and an opening coil protection loop. The starting circuit of the anti-burning protection device for the opening and closing coil of the circuit breaker adopts an alternating current power supply, parasitic circuits caused by access of a delay starting circuit and the like are avoided being generated in a control circuit, and meanwhile, after the actual action of the opening and closing coil is detected through a proximity switch, the control circuit of the circuit breaker is disconnected, the burning condition of the opening and closing coil caused by the blocking of a mechanism or the incapability of switching of an auxiliary switch is reliably eliminated, and the operation and maintenance cost of equipment is effectively saved.
Description
Technical Field
The utility model relates to a circuit breaker coil relay protection technical field specifically is a protection device is prevented burning by circuit breaker divide-shut brake coil.
Background
The existing circuit breaker control circuit is designed with a switching-on and switching-off self-holding circuit, and when the switching-on and switching-off control circuit is started, the switching-off can be only carried out by switching auxiliary contacts of the circuit breaker.
When the breaker cannot be normally switched on and off or the auxiliary contacts in the mechanism cannot realize conversion due to equipment faults, the switching-on and switching-off coil is electrified for a long time.
Because the opening and closing coils of the circuit breaker are designed according to short-time electrification, if the electrification time is overlong, the opening and closing coils are easily burnt.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The not enough to prior art, the utility model provides a breaker divide-shut brake coil prevents burning down protection device has solved following technical problem:
1. when the breaker cannot be normally switched on and off due to equipment faults or auxiliary contacts in the mechanism cannot be switched, the switching-on and switching-off coil is electrified for a long time, and the switching-on and switching-off coil is easily burnt.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a breaker opening and closing coil anti-burnout protection device comprises a breaker control circuit and an opening and closing coil protection device, wherein the breaker control circuit comprises an opening loop and a closing loop, the opening loop comprises an opening coil, the closing loop comprises a closing coil, and the opening and closing coil protection device comprises a closing coil protection loop and an opening coil protection loop;
the switching-on coil protection loop comprises a switching-on coil protection starting loop, a switching-on protection normally closed node is arranged on the switching-on loop, the switching-on coil protection starting loop is electrically connected with the switching-on protection normally closed node, and the switching-on loop can be cut off after the switching-on protection normally closed node is opened;
the closing coil protection loop comprises a closing coil iron core proximity switch and a closing protection relay, the closing protection relay is electrically connected with the closing coil iron core proximity switch, and a closing protection normally-closed node is a normally-closed node of the closing protection relay;
the opening coil protection loop comprises an opening coil protection starting loop, an opening protection normally closed node is arranged on the opening loop, the opening coil protection starting loop is electrically connected with the closing protection normally closed node, and the opening protection normally closed node can cut off the opening loop after being opened;
the opening coil protection starting circuit comprises an opening coil iron core proximity switch and an opening protection relay, the opening protection relay is electrically connected with the opening coil iron core proximity switch, and the opening protection normally closed node is a normally closed node of the opening protection relay;
when the closing coil performs closing operation, the closing coil iron core can be close to the switch to act, so that a closing protective relay is switched on, and the closing protective relay acts to open a closing protective normally-closed node and cut off a closing loop;
after the opening coil performs opening operation, the opening coil iron core can be enabled to approach the switch to act, so that the opening protective relay is switched on, the opening protective relay acts to enable the normally closed node of the opening protection to be opened, and the opening loop is cut off.
Preferably, the closing coil iron core proximity switch and the closing coil are arranged perpendicularly, and the closing coil iron core proximity switch is arranged at the end position of the closing coil closing iron core.
Preferably, the opening coil iron core proximity switch and the opening coil are arranged vertically, and the opening coil iron core proximity switch is arranged at the end position of the iron core after the opening coil is closed.
Preferably, the power supply is included, and the opening protection relay is connected with the opening coil iron core proximity switch in series and then is connected with the power supply.
Preferably, the closing protection relay is connected with the closing coil iron core proximity switch in series and then is connected with a power supply.
Preferably, a power switch is arranged on the power supply.
Preferably, the power supply is an alternating current power supply.
(III) advantageous effects
The utility model provides a protection device is prevented burning by circuit breaker divide-shut brake coil. The method has the following beneficial effects:
the starting circuit of the anti-burning protection device for the opening and closing coil of the circuit breaker adopts an alternating current power supply, a parasitic circuit caused by the fact that a delay starting circuit and the like are connected is avoided from being generated in a control circuit, and meanwhile, after the actual action of the opening and closing coil is detected through a proximity switch, the control circuit of the circuit breaker is disconnected, the situation that the opening and closing coil is burnt due to the fact that a mechanism is jammed or an auxiliary switch cannot be switched is reliably eliminated, and the operation and maintenance cost of equipment is effectively saved.
Drawings
FIG. 1 is a schematic view of the connection device of the present invention;
FIG. 2 is a schematic diagram of the opening and closing circuit of the present invention;
fig. 3 is a schematic diagram of the protection starting circuit of the opening and closing coil of the utility model;
fig. 4 is a schematic view of the installation position of the proximity switch of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 2-4, the utility model provides a circuit breaker divide-shut brake coil burnout prevention protection device, which comprises a circuit breaker divide-shut brake circuit and a divide-shut brake coil protection device, wherein the circuit breaker divide-shut brake circuit comprises a closing circuit and an opening circuit; the opening and closing coil protection device comprises a closing coil protection loop and an opening coil protection loop, wherein the closing coil protection loop comprises a closing coil protection starting loop and a closing protection normally closed node KH connected in series in the closing loop, and the opening coil protection loop comprises an opening coil protection starting loop and an opening protection normally closed node TH connected in series in the opening loop;
the closing coil protection starting circuit comprises an alternating current power supply, an alternating current power supply air switch QS, a closing coil iron core approach switch SQH and a closing protection relay KH, wherein the closing coil iron core approach switch SQH is connected with the closing protection relay KH in series and then is connected with the power supply;
the opening coil protection starting circuit comprises an alternating current power supply, an alternating current power supply air switch QS, an opening coil iron core approach switch SQT and an opening protection relay KT, and the opening coil iron core approach switch SQT is connected with the opening protection relay KT in series and then is connected with the power supply; and the switching-on coil protection starting loop and the switching-off coil protection starting loop share one alternating current power supply.
The closing coil iron core proximity switch SQH is vertically arranged with the closing coil HQ, and the closing coil iron core proximity switch SQH is arranged at the position of the end part of the iron core after the closing coil HQ is closed; separating brake coil core approach switch SQT is perpendicular with separating brake coil TQ and arranges, and separating brake coil core approach switch SQT arranges in separating brake coil TQ combined floodgate back iron core tip position.
In conclusion, the starting circuit of the anti-burning protection device for the opening and closing coil of the circuit breaker adopts the alternating-current power supply, parasitic circuits caused by the fact that a delay starting circuit and the like are connected in the control circuit are avoided, and meanwhile, the control circuit of the circuit breaker is disconnected after the actual action of the opening and closing coil is detected through the proximity switch, so that the condition that the opening and closing coil is burnt due to the fact that a mechanism is jammed or an auxiliary switch cannot be switched is reliably eliminated, and the operation and maintenance cost of equipment is effectively saved.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship of the structure of the present invention based on the drawings, which are only for convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meaning of the above terms in the present invention can be understood in relation to the present context, according to the general idea of the present invention.
Claims (6)
1. The utility model provides a breaker divide-shut brake coil protection device that burns out, includes circuit breaker control circuit and divide-shut brake coil protection device, circuit breaker control circuit includes separating brake circuit and combined floodgate return circuit, separating brake circuit includes separating brake coil, combined floodgate return circuit includes combined floodgate coil, its characterized in that: the opening and closing coil protection device comprises a closing coil protection circuit and an opening coil protection circuit;
the switching-on coil protection loop comprises a switching-on coil protection starting loop, a switching-on protection normally closed node is arranged on the switching-on loop, the switching-on coil protection starting loop is electrically connected with the switching-on protection normally closed node, and the switching-on loop can be cut off after the switching-on protection normally closed node is opened;
the closing coil protection loop comprises a closing coil iron core proximity switch and a closing protection relay, the closing protection relay is electrically connected with the closing coil iron core proximity switch, and a closing protection normally-closed node is a normally-closed node of the closing protection relay;
the opening coil protection loop comprises an opening coil protection starting loop, an opening protection normally closed node is arranged on the opening loop, the opening coil protection starting loop is electrically connected with the opening protection normally closed node, and the opening protection normally closed node can cut off the opening loop after being opened;
the opening coil protection starting circuit comprises an opening coil iron core proximity switch and an opening protection relay, the opening protection relay is electrically connected with the opening coil iron core proximity switch, and the opening protection normally-closed node is a normally-closed node of the opening protection relay;
when the closing coil performs closing operation, the closing coil iron core can be close to the switch to act, so that a closing protective relay is switched on, and the closing protective relay acts to open a closing protective normally-closed node and cut off a closing loop;
after the opening coil performs opening operation, the opening coil iron core can be enabled to approach the switch to act, so that the opening protective relay is switched on, the opening protective relay acts to enable the normally closed node of the opening protection to be opened, and the opening loop is cut off.
2. The breaker divide-shut brake coil anti-burnout protection device of claim 1, characterized in that: the closing coil iron core proximity switch and the closing coil are arranged perpendicularly, and the closing coil iron core proximity switch is arranged at the position of the end part of the closing coil closing iron core.
3. The circuit breaker divide-shut brake coil prevents burning protection device according to claim 1 characterized in that: the opening coil iron core proximity switch and the opening coil are vertically arranged, and the opening coil iron core proximity switch is arranged at the position of the end part of the iron core after the opening coil is closed.
4. The breaker divide-shut brake coil anti-burnout protection device of claim 1, characterized in that: the power supply is connected to the opening protection relay and the opening coil iron core proximity switch in series.
5. The circuit breaker divide-shut brake coil prevents burning protection device according to claim 1 characterized in that: the closing protection relay is connected with a closing coil iron core proximity switch in series and then is connected with the power supply.
6. The circuit breaker divide-shut brake coil prevents burning protection device according to claim 4 or 5 characterized in that: the power supply is an alternating current power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221754348.6U CN217606759U (en) | 2022-07-07 | 2022-07-07 | Circuit breaker divide-shut brake coil prevents burning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221754348.6U CN217606759U (en) | 2022-07-07 | 2022-07-07 | Circuit breaker divide-shut brake coil prevents burning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606759U true CN217606759U (en) | 2022-10-18 |
Family
ID=83592163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221754348.6U Active CN217606759U (en) | 2022-07-07 | 2022-07-07 | Circuit breaker divide-shut brake coil prevents burning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606759U (en) |
-
2022
- 2022-07-07 CN CN202221754348.6U patent/CN217606759U/en active Active
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