CN205509481U - Circuit breaker divides closing control circuit with overheat protection function - Google Patents
Circuit breaker divides closing control circuit with overheat protection function Download PDFInfo
- Publication number
- CN205509481U CN205509481U CN201521139968.9U CN201521139968U CN205509481U CN 205509481 U CN205509481 U CN 205509481U CN 201521139968 U CN201521139968 U CN 201521139968U CN 205509481 U CN205509481 U CN 205509481U
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- Prior art keywords
- separating brake
- combined floodgate
- branch road
- switching
- circuit
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000004804 winding Methods 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 102100028680 Protein patched homolog 1 Human genes 0.000 claims description 7
- 101710161390 Protein patched homolog 1 Proteins 0.000 claims description 7
- 102100036894 Protein patched homolog 2 Human genes 0.000 claims description 7
- 101710161395 Protein patched homolog 2 Proteins 0.000 claims description 7
- 230000009993 protective function Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model discloses a circuit breaker divides closing control circuit with overheat protection function, it is anodal including the power end, the power end negative pole, separating brake control switch, combined floodgate control switch, a thermal relay, the 2nd thermal relay, separating brake actuating mechanism and combined floodgate actuating mechanism, separating brake actuating mechanism and combined floodgate actuating mechanism couple with controlled circuit breaker respectively, separating brake control switch, a thermal relay, the normal open auxiliary contact of controlled circuit breaker and separating brake coil are established ties in proper order and are constituteed the separating brake branch road, combined floodgate control switch, the 2nd thermal relay, the normally closed auxiliary contact of controlled circuit breaker and closing coils establish ties in proper order and constitute the combined floodgate branch road, the separating brake branch road is parallelly connected mutually with the combined floodgate branch road. The utility model discloses can realize the divide -shut brake control to the circuit breaker to safe and reliable can pass through thermal relay disconnection separating brake branch road and combined floodgate branch road at the circuit breaker when just the normally on separating brake is moving, protection separating brake coil and closing coils avoid burning.
Description
Technical field
This utility model relates to a kind of circuit-breaker switching on-off control circuit with overheat protective function.
Background technology
Existing circuit-breaker switching on-off control circuit, due to mechanical latching reason or node adhesion, chopper can not normal occlusion separating brake action time, then the auxiliary node of chopper can not normally disconnect, and due to the self-holding function of anti-trip relay coil, loop has electric current to flow through always, can cause that divide-shut brake coil is the most through-flow to be burnt.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of circuit-breaker switching on-off control circuit with overheat protective function.
Solving above-mentioned technical problem, the technical scheme that this utility model is used is as follows:
A kind of circuit-breaker switching on-off control circuit with overheat protective function, it is characterized in that: described circuit-breaker switching on-off control circuit includes power end positive pole, power end negative pole, separating brake controls switch, shutting-brake control switchs, first thermal relay, second thermal relay, separating brake drive mechanism and combined floodgate drive mechanism, wherein, described separating brake controls switch and shutting-brake control switch can controlled be switched on or switched off in the way of selecting one, described separating brake drive mechanism is provided with switching winding, described combined floodgate drive mechanism is provided with closing coil, separating brake drive mechanism and combined floodgate drive mechanism couple with controlled chopper respectively, described separating brake drive mechanism can drive described controlled breaker open operation when described switching winding is energized, described combined floodgate drive mechanism can drive described controlled breaker closing when described closing coil is energized；Described separating brake controls switch, the normally opened auxiliary contact of the first thermal relay, controlled chopper and switching winding and is sequentially connected in series separating brake branch road, described shutting-brake control switch, the second thermal relay, the normally closed auxiliary contact of controlled chopper and closing coil are sequentially connected in series combined floodgate branch road, described separating brake branch road is in parallel with combined floodgate branch road, and the positive terminal of the rwo formed parallel branch is connected with described power end positive electrical, negative pole end is connected with described power end negative electricity.
In order to when preventing over current fault, chopper closes a floodgate after controlled separating brake again, as a kind of improvement of the present utility model, described circuit-breaker switching on-off control circuit also includes anti-trip relay；The current start coil tandem of described anti-trip relay and controls between switch and the first thermal relay at described separating brake in described separating brake branch road, the normally-closed contact of described anti-trip relay is serially connected in described combined floodgate branch road and between described shutting-brake control switch and the second thermal relay, the voltage hold-in winding of described anti-trip relay and normally opened contact are in series and series arm one end of being formed is connected with described power end negative electricity, the other end switchs one end electrical connection being connected with described normally-closed contact and shutting-brake control, and, described normally opened contact disconnects when described current start coil blackout, close during energising, described normally-closed contact closes when described voltage hold-in winding power-off, disconnect during energising.
In order to ensure circuit-breaker switching on-off control circuit point, combined floodgate branch road maintenance time can reliably disconnect, to ensure to overhaul arbitrary safety, as a kind of improvement of the present utility model, described circuit-breaker switching on-off control circuit also includes the first switching pressing plate and the second switching pressing plate；Described first switching pressing plate is serially connected in described separating brake branch road and controls between switch and current start coil at described separating brake, and described second switching pressing plate is serially connected in described combined floodgate branch road and between described shutting-brake control switch and normally-closed contact.
In order to improve the safety of circuit-breaker switching on-off control circuit, as a kind of improvement of the present utility model, described circuit-breaker switching on-off control circuit also includes the first protection fuse and the second protection fuse；The positive terminal of described separating brake branch road parallel branch formed with combined floodgate branch road is connected with described power end positive electrical by described first protection fuse, negative pole end is connected with described power end negative electricity by described second protection fuse.
As a kind of embodiment of the present utility model, described separating brake drive mechanism is made up of tripping electromagnet, separating brake electrical apparatus release and separating brake operating mechanism, described switching winding is the coil of tripping electromagnet, described separating brake electrical apparatus release is coupled with described controlled chopper by separating brake operating mechanism, the iron core armature of described tripping electromagnet can clash into promotion separating brake electrical apparatus release action when switching winding is energized, described controlled chopper is carried out sub-switching operation by described separating brake operating mechanism；Described combined floodgate drive mechanism includes making electromagnet, combined floodgate electrical apparatus release and combined floodgate operating mechanism composition, described closing coil is the coil of making electromagnet, described combined floodgate electrical apparatus release is coupled with described controlled chopper by combined floodgate operating mechanism, the iron core armature of described making electromagnet can clash into promotion combined floodgate electrical apparatus release action when closing coil is energized, described controlled chopper is carried out closing operation by described combined floodgate operating mechanism.
As a kind of embodiment of the present utility model, described separating brake controls switch and shutting-brake control switch is hand switch, and they are controlled to be switched on or switched off in the way of selecting one by operator.
As a kind of embodiment of the present utility model, described separating brake controls switch and shutting-brake control switch is electrical switch, and they are externally controlled the control of signal and are switched on or switched off in the way of selecting one.
Compared with prior art, this utility model has the advantages that
This utility model is capable of the divide-shut brake to chopper and controls, and safe and reliable, it is possible to can not disconnect separating brake branch road and combined floodgate branch road by thermal relay during normal occlusion separating brake action at chopper, protection switching winding and closing coil avoid burning.
Accompanying drawing explanation
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the circuit theory diagrams of circuit-breaker switching on-off control circuit of the present utility model.
Detailed description of the invention
nullAs shown in Figure 1，This utility model has the circuit-breaker switching on-off control circuit of overheat protective function，Including power end positive pole KM+、Power end negative pole KM-、Separating brake controls switch SA1、Shutting-brake control switch SA2、First thermal relay PTC1、Second thermal relay PTC2、Separating brake drive mechanism and combined floodgate drive mechanism，Wherein，Separating brake controls switch SA1 and shutting-brake control switch SA2 and can controlled be switched on or switched off in the way of selecting one，Separating brake drive mechanism is provided with switching winding TQ，Combined floodgate drive mechanism is provided with closing coil HC，Separating brake drive mechanism and combined floodgate drive mechanism couple with controlled chopper respectively，Separating brake drive mechanism can drive controlled breaker open operation when switching winding TQ is energized，Combined floodgate drive mechanism can drive controlled breaker closing when closing coil HC is energized；Separating brake control switch SA1, the first thermal relay PTC1, the normally opened auxiliary contact DL2 and switching winding TQ of controlled chopper are sequentially connected in series separating brake branch road, shutting-brake control switch SA2, the second thermal relay PTC2, the normally closed auxiliary contact DL1 and closing coil HC of controlled chopper are sequentially connected in series combined floodgate branch road, separating brake branch road is in parallel with combined floodgate branch road, and the positive terminal of the rwo formed parallel branch electrically connects with power end positive pole KM+, negative pole end electrically connects with power end negative pole KM-.
Wherein, above-mentioned separating brake drive mechanism is made up of tripping electromagnet, separating brake electrical apparatus release and separating brake operating mechanism, switching winding TQ is the coil of tripping electromagnet, separating brake electrical apparatus release is coupled with controlled chopper by separating brake operating mechanism, the iron core armature of tripping electromagnet can clash into promotion separating brake electrical apparatus release action when switching winding TQ is energized, controlled chopper is carried out sub-switching operation by separating brake operating mechanism；Combined floodgate drive mechanism includes making electromagnet, combined floodgate electrical apparatus release and combined floodgate operating mechanism composition, closing coil HC is the coil of making electromagnet, combined floodgate electrical apparatus release is coupled with controlled chopper by combined floodgate operating mechanism, the iron core armature of making electromagnet can clash into promotion combined floodgate electrical apparatus release action when closing coil HC is energized, controlled chopper is carried out closing operation by combined floodgate operating mechanism.During breaker open operation, normally opened auxiliary contact DL2 disconnects, normally closed auxiliary contact DL1 Guan Bi, and during breaker closing, normally opened auxiliary contact DL2 Guan Bi, normally closed auxiliary contact DL1 disconnect.
Wherein, it can be hand switch that above-mentioned tripping operation controls switch SA1 and shutting-brake control switch SA2, and they are controlled to be switched on or switched off in the way of selecting one by operator；It can also be electrical switch that tripping operation controls switch SA1 and shutting-brake control switch SA2, and they are externally controlled the control of signal and are switched on or switched off in the way of selecting one.
In order to when preventing over current fault, chopper closes a floodgate after controlled separating brake again, above-mentioned circuit-breaker switching on-off control circuit also includes anti-trip relay TBJ；The current start coil TBJI of anti-trip relay TBJ is serially connected in separating brake branch road and controls between switch SA1 and the first thermal relay PTC1 at separating brake, the normally-closed contact TBJ1 of anti-trip relay TBJ is serially connected in combined floodgate branch road and between shutting-brake control switch SA2 and the second thermal relay PTC2, the voltage hold-in winding TBJV of anti-trip relay TBJ and normally opened contact TBJ2 is in series and series arm one end of being formed electrically connects with power end negative pole KM-, the other end switchs one end electrical connection that SA2 is connected with normally-closed contact TBJ1 and shutting-brake control, and, normally opened contact TBJ2 disconnects when current start coil TBJI power-off, close during energising, normally-closed contact TBJ1 closes when voltage hold-in winding TBJV power-off, disconnect during energising.
In order to ensure circuit-breaker switching on-off control circuit point, combined floodgate branch road maintenance time can reliably disconnect, with ensure overhaul arbitrary safety, above-mentioned circuit-breaker switching on-off control circuit also includes the first switching pressing plate LP1 and the second switching pressing plate LP2；First switching pressing plate LP1 is serially connected in separating brake branch road and controls between switch SA1 and current start coil TBJI at separating brake, and the second switching pressing plate LP2 is serially connected in combined floodgate branch road and between shutting-brake control switch SA2 and normally-closed contact TBJ1.
In order to improve the safety of circuit-breaker switching on-off control circuit, above-mentioned circuit-breaker switching on-off control circuit also includes the first protection fuse RD1 and second protection fuse RD2；The positive terminal of separating brake branch road parallel branch formed with combined floodgate branch road is electrically connected with power end positive pole KM+ by the first protection fuse RD1, negative pole end is electrically connected with power end negative pole KM-by the second protection fuse RD2.
The operation principle of circuit-breaker switching on-off control circuit of the present utility model is:
When separating brake controls switch SA1 combined floodgate, separating brake branch road is energized, i.e. switching winding TQ is energized so that the iron core armature of tripping electromagnet clashes into and promotes separating brake electrical apparatus release action, by separating brake operating mechanism, controlled chopper is carried out sub-switching operation.
When shutting-brake control switchs SA2 combined floodgate, combined floodgate branch road is energized, i.e. closing coil HC is energized so that the iron core armature of making electromagnet clashes into and promotes combined floodgate electrical apparatus release action, by combined floodgate operating mechanism, controlled chopper is carried out closing operation.
Chopper due to mechanical latching reason or node adhesion and can not normal occlusion separating brake action time, have electric current to flow through due to loop always, temperature is too high; current overload; the contact triggering thermal relay PTC1 or PTC2 disconnects, and whole loop disconnects, and protection divide-shut brake coil avoids burning.
This utility model is not limited to above-mentioned detailed description of the invention; according to foregoing; ordinary technical knowledge and customary means according to this area; without departing under this utility model above-mentioned basic fundamental thought premise; this utility model can also be made the equivalent modifications of other various ways, replace or change, and all falls among protection domain of the present utility model.
Claims (7)
- null1. a circuit-breaker switching on-off control circuit with overheat protective function，It is characterized in that: described circuit-breaker switching on-off control circuit includes power end positive pole (KM+)、Power end negative pole (KM-)、Separating brake controls switch (SA1)、Shutting-brake control switch (SA2)、First thermal relay (PTC1)、Second thermal relay (PTC2)、Separating brake drive mechanism and combined floodgate drive mechanism，Wherein，Described separating brake controls switch (SA1) and shutting-brake control switch (SA2) can controlled be switched on or switched off in the way of selecting one，Described separating brake drive mechanism is provided with switching winding (TQ)，Described combined floodgate drive mechanism is provided with closing coil (HC)，Separating brake drive mechanism and combined floodgate drive mechanism couple with controlled chopper respectively，Described separating brake drive mechanism can drive described controlled breaker open operation when described switching winding (TQ) is energized，Described combined floodgate drive mechanism can drive described controlled breaker closing when described closing coil (HC) is energized；Described separating brake controls switch (SA1), first thermal relay (PTC1), normally opened auxiliary contact (DL2) and the switching winding (TQ) of controlled chopper are sequentially connected in series separating brake branch road, described shutting-brake control switch (SA2), second thermal relay (PTC2), normally closed auxiliary contact (DL1) and the closing coil (HC) of controlled chopper are sequentially connected in series combined floodgate branch road, described separating brake branch road is in parallel with combined floodgate branch road, the positive terminal of the rwo formed parallel branch electrically connects with described power end positive pole (KM+), negative pole end electrically connects with described power end negative pole (KM-).
- Circuit-breaker switching on-off control circuit the most according to claim 1, it is characterised in that: described circuit-breaker switching on-off control circuit also includes anti-trip relay (TBJ)；nullThe current start coil (TBJI) of described anti-trip relay (TBJ) is serially connected in described separating brake branch road and is positioned at described separating brake and controls between switch (SA1) and the first thermal relay (PTC1)，The normally-closed contact (TBJ1) of described anti-trip relay (TBJ) is serially connected in described combined floodgate branch road and is positioned between described shutting-brake control switch (SA2) and the second thermal relay (PTC2)，The voltage hold-in winding (TBJV) of described anti-trip relay (TBJ) and normally opened contact (TBJ2) are in series and series arm one end of being formed electrically connects with described power end negative pole (KM-)、The other end switchs one end electrical connection that (SA2) is connected with described normally-closed contact (TBJ1) and shutting-brake control，And，Described normally opened contact (TBJ2) disconnects when described current start coil (TBJI) power-off、Close during energising，Described normally-closed contact (TBJ1) closes when described voltage hold-in winding (TBJV) power-off、Disconnect during energising.
- Circuit-breaker switching on-off control circuit the most according to claim 2, it is characterised in that: described circuit-breaker switching on-off control circuit also includes the first switching pressing plate (LP1) and the second switching pressing plate (LP2)；Described first switching pressing plate (LP1) is serially connected in described separating brake branch road and is positioned at described separating brake and controls between switch (SA1) and current start coil (TBJI), and described second switching pressing plate (LP2) is serially connected in described combined floodgate branch road and is positioned between described shutting-brake control switch (SA2) and normally-closed contact (TBJ1).
- Circuit-breaker switching on-off control circuit the most according to claim 3, it is characterised in that: described circuit-breaker switching on-off control circuit also includes the first protection fuse (RD1) and the second protection fuse (RD2)；The positive terminal of described separating brake branch road parallel branch formed with combined floodgate branch road is electrically connected with described power end positive pole (KM+) by described first protection fuse (RD1), negative pole end is electrically connected with described power end negative pole (KM-) by described second protection fuse (RD2).
- 5. according to the circuit-breaker switching on-off control circuit described in Claims 1-4 any one, it is characterized in that: described separating brake drive mechanism is made up of tripping electromagnet, separating brake electrical apparatus release and separating brake operating mechanism, described switching winding (TQ) is the coil of tripping electromagnet, described separating brake electrical apparatus release is coupled with described controlled chopper by separating brake operating mechanism, the iron core armature of described tripping electromagnet can clash into promotion separating brake electrical apparatus release action when switching winding (TQ) is energized, described controlled chopper is carried out sub-switching operation by described separating brake operating mechanism；Described combined floodgate drive mechanism includes making electromagnet, combined floodgate electrical apparatus release and combined floodgate operating mechanism composition, described closing coil (HC) is the coil of making electromagnet, described combined floodgate electrical apparatus release is coupled with described controlled chopper by combined floodgate operating mechanism, the iron core armature of described making electromagnet can clash into promotion combined floodgate electrical apparatus release action when closing coil (HC) is energized, described controlled chopper is carried out closing operation by described combined floodgate operating mechanism.
- 6. according to the circuit-breaker switching on-off control circuit described in Claims 1-4 any one, it is characterized in that: described separating brake controls switch (SA1) and shutting-brake control switch (SA2) is hand switch, they are controlled to be switched on or switched off in the way of selecting one by operator.
- 7. according to the circuit-breaker switching on-off control circuit described in Claims 1-4 any one, it is characterized in that: described separating brake controls switch (SA1) and shutting-brake control switch (SA2) is electrical switch, and they are externally controlled the control of signal and are switched on or switched off in the way of selecting one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139968.9U CN205509481U (en) | 2015-12-30 | 2015-12-30 | Circuit breaker divides closing control circuit with overheat protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139968.9U CN205509481U (en) | 2015-12-30 | 2015-12-30 | Circuit breaker divides closing control circuit with overheat protection function |
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| Publication Number | Publication Date |
|---|---|
| CN205509481U true CN205509481U (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521139968.9U Expired - Fee Related CN205509481U (en) | 2015-12-30 | 2015-12-30 | Circuit breaker divides closing control circuit with overheat protection function |
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| Country | Link |
|---|---|
| CN (1) | CN205509481U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602499A (en) * | 2017-02-17 | 2017-04-26 | 南京南瑞继保电气有限公司 | Breaker control circuit |
| CN107634500A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | A kind of multifunction protection on-load switch fuse combined electric apparatus and circuit structure |
| CN108872840A (en) * | 2018-05-09 | 2018-11-23 | 北京交通大学 | A kind of mimic-disconnecting switch |
-
2015
- 2015-12-30 CN CN201521139968.9U patent/CN205509481U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602499A (en) * | 2017-02-17 | 2017-04-26 | 南京南瑞继保电气有限公司 | Breaker control circuit |
| CN107634500A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | A kind of multifunction protection on-load switch fuse combined electric apparatus and circuit structure |
| CN108872840A (en) * | 2018-05-09 | 2018-11-23 | 北京交通大学 | A kind of mimic-disconnecting switch |
| CN108872840B (en) * | 2018-05-09 | 2019-11-15 | 北京交通大学 | A kind of mimic-disconnecting switch |
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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 |
Granted publication date: 20160824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |