CN204905191U - Low -voltage circuit breaker's operational structure - Google Patents
Low -voltage circuit breaker's operational structure Download PDFInfo
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- CN204905191U CN204905191U CN201520729235.4U CN201520729235U CN204905191U CN 204905191 U CN204905191 U CN 204905191U CN 201520729235 U CN201520729235 U CN 201520729235U CN 204905191 U CN204905191 U CN 204905191U
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- tripping
- circuit breaker
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- low
- voltage circuit
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- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 230000009471 action Effects 0.000 claims abstract description 25
- 238000010408 sweeping Methods 0.000 claims description 8
- 230000006872 improvement Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model discloses a low -voltage circuit breaker's operational structure, including electromagnetic mechanism and action mechanism, electromagnetic mechanism and external circuit mechanism are coupled, the linkage of action mechanism and outside contact system, when external circuit mechanism detected circuit fault, the drive electromagnetic mechanism of external circuit mechanism drive action mechanism makeed contact system open circuit. The utility model discloses a low -voltage circuit breaker's operational structure through electromagnetic mechanism and action mechanism's setting, just can be effectual have driven contact system open circuit at the circuit when the mechanism detects circuit fault to do not receive ambient temperature's influence.
Description
Technical field
The utility model relates to a kind of low-voltage circuit breaker, relates to a kind of operating structure of low-voltage circuit breaker in particular.
Background technology
Low-voltage circuit breaker is a kind of conventional distribution apparatus, is widely used in every power engineering, and it is responsible for the function of distribution and protection in low-voltage distribution system.Its safety and stability of operating characteristics to electrical network is most important.When breaking down in system, failure mechanism in circuit breaker excision system fast, or cut off whole Power supply, to prevent failure propagation, avoid causing huge economic loss and casualties.
The structure of existing low-voltage circuit breaker comprises contact system, tripping mechanism and arc-control device, in the process of breaker actuation, be with movable contact system to disconnect to realize open circuit by tripping mechanism, arc-control device is then knock out the electric arc produced when contact system disconnects timely, so just, can be good at open circuit, the loss avoiding circuit larger produces, but existing tripping mechanism structure comprises testing agency and operating mechanism, wherein testing agency is bimetal leaf and current coil electromagnet, when there is overload in circuit, bimetal leaf will generate heat deformation, when short circuit appears in circuit, current coil electromagnet is inhaled dynamic, thus trigger mechanism action, operating mechanism like this just can effectively be with movable contact system open circuit, circuit is avoided to produce larger loss, but because the operation principle of bimetal leaf realizes by temperature, thus the impact by ambient temperature in the process of reality use is very large, so in the process used, easily occur that circuit breaker can not the generation of the larger loss of circuit that causes of action in time.
Utility model content
For the deficiency that prior art exists, it is not influenced by ambient temperature that the purpose of this utility model is to provide one, can the operating structure of low-voltage circuit breaker of timely and effective dropout.
For achieving the above object, the utility model provides following technical scheme: a kind of operating structure of low-voltage circuit breaker, comprise electromagnetic mechanism and actuating mechanism, described electromagnetic mechanism and external circuit mechanism couple, described actuating mechanism and external contacts system interlink, when external circuit mechanism detects fault, external circuit mechanism drives electromagnetic mechanism sweeping action mechanism to make contact system open circuit.
As further improvement of the utility model, described electromagnetic mechanism comprises shell, yoke is in the enclosure set, described shell offers through hole, in described through hole, slippage is connected with fore-set, described yoke comprises fixed part and the movable part that be connected turning with fixed part, described movable part and fore-set inconsistent, described fixed part is provided with permanent magnet and coil, described coil and circuit mechanism couple, described permanent magnet side is fixed with supporting pieces, described supporting pieces is fixed with spring, described spring one end and supporting pieces are fixed, the other end and movable part are fixed, wherein, coil, permanent magnet and the upset of Spring driving movable part, and then drive fore-set to touch actuating mechanism.
As further improvement of the utility model, the dropout part that described actuating mechanism comprises handle, the tripping be connected with external contacts system and drives by electromagnetic mechanism, described tripping and handle and dropout part link.
As further improvement of the utility model, described tripping side is provided with the snap close of locking tripping state.
As further improvement of the utility model, described snap close and housing hinge, its side offers the first fixture block, described tripping and housing hinge, and its side offers the second fixture block, described first fixture block and the second fixture block is inconsistent blocks tripping.
As further improvement of the utility model, conflicting in the side of described snap close has connector, and described connector is provided with conflict post, and described snap close is also provided with conflict block, after described snap close rotates conflict post and conflict block inconsistent.
As further improvement of the utility model, described snap close is connected by connecting rod with handle, and described handle drivening rod makes snap close rotation the first fixture block and the second fixture block be offseted.
As further improvement of the utility model, the side of described tripping is fixedly connected with extension spring, and the other end and the shell of the relative tripping of described extension spring fix.
As further improvement of the utility model, described dropout part one end and housing hinge, the other end and fore-set inconsistent, described dropout part is provided with supporter and the drive post inconsistent with tripping near the side of one end of fore-set, described supporter and housing hinge, one end and dropout part inconsistent, the other end and handle inconsistent.
The utility model has following beneficial effect, by the setting of external circuit mechanism, just the fault that circuit breaker connects effectively can be detected, after fault being detected, circuit mechanism just can send the signal of telecommunication to operating mechanism, electromagnetic mechanism in operating mechanism receives after the signal of telecommunication will action, sweeping action mechanism, thus actuating mechanism band movable contact system, contact system is disconnected, so just well serve the effect of a protective circuit, circuit breaker is driven compared to the mode by thermal deformation of the prior art, the utility model is detected by circuit mechanism in the testing process of fault, even if thus ambient temperature change also can not have influence on the detection of circuit mechanism to fault, thus would not occur that circuit breaker in prior art can not the problem of action in time, in the process of action, come sweeping action mechanism by electromagnetic mechanism to thread off simultaneously, because electromagnetic mechanism is not by the impact of ambient temperature, so make whole dropout process also can not be subject to the impact of ambient temperature.
Accompanying drawing explanation
Fig. 1 is the low-voltage circuit breaker overall structure figure using operating structure of the present utility model;
Fig. 2 is the overall structure figure of electromagnetic mechanism in Fig. 1.
Embodiment
Shown in 2, the operating structure of a kind of low-voltage circuit breaker of the present embodiment, it is characterized in that: comprise electromagnetic mechanism 1 and actuating mechanism 2, described electromagnetic mechanism 1 couples with external circuit mechanism, described actuating mechanism 2 and external contacts system interlink, when external circuit mechanism detects fault, external circuit mechanism drives electromagnetic mechanism 1 sweeping action mechanism 2 to make contact system open circuit, when circuit breaks down and needs circuit breaker tripping, outside circuit mechanism will detect the fault in circuit, thus will send to electromagnetic mechanism 1 and drive the signal of telecommunication, electromagnetic mechanism 1 will sweeping action mechanism 2 action, thus actuating mechanism 2 will make contact system disconnect, nature circuit will be disconnected, so circuit just can be avoided to be subject to larger infringement, wherein detected by outside circuit mechanism during fault here, instead of in prior art by electric current flow through heating detect, thus would not occur making circuit damage the large problem of change because the circuit breaker that the change of ambient temperature causes cannot be threaded off in prior art, simultaneously in the process of circuit breaker open circuit, send the signal of telecommunication by circuit mechanism to drive the action of electromagnetic mechanism 1 sweeping action mechanism 2, thus just can action timely and effectively by electromagnetic mechanism 1, and there will not be of the prior art by thermal deformation come that drive actions causes because the change of ambient temperature, make thermal deformation amount inadequate, and then cause circuit breaker can not the problem of action in time.
As a kind of embodiment improved, described electromagnetic mechanism 1 comprises shell 11, be arranged on the yoke 10 in shell 11, described shell 11 offers through hole 13, in described through hole 13, slippage is connected with fore-set 14, described yoke 10 comprises fixed part 102 and the movable part 101 that be connected turning with fixed part 102, described movable part 101 is inconsistent with fore-set 14, described fixed part 102 is provided with permanent magnet 15 and coil 12, described coil 12 couples with circuit mechanism 21, described permanent magnet 15 side is fixed with supporting pieces a, described supporting pieces a is fixed with spring b, described spring b one end and supporting pieces a fix, the other end and movable part 101 are fixed, wherein, coil 12, permanent magnet 15 and spring b drive movable part 101 to overturn, and then drive fore-set 14 to touch actuating mechanism 2, due to just magnetic force produced time coil 12 only has and has electric current to pass through therein, thus just power supply can be provided to carry out control coil 12 action whether to coil 12 by external circuit mechanism, and the electric current exported due to external circuit mechanism is very little, so the magnetic force size that this electric current makes coil 12 produce is not enough to drive fore-set 14 to slide, thus the setting of spring b and permanent magnet 15 is passed through here, in normal state, permanent magnet 15 holds movable part 101, the fore-set 14 inconsistent with movable part 101 is bounced back, and Compress Spring b makes spring b energy storage, when have electric current by coil 12 time, coil 12 will produce a magnetic force contrary with permanent magnet 15 magnetic, and be delivered to permanent magnet 15 place by yoke 10, the magnetic force of permanent magnet 15 is reduced, therefore permanent magnet 15 just can not effectively hold movable part 101, so the energy that spring b stores will discharge, movable part 101 will overturn and be ejected by fore-set 14, fore-set 14 will trigger action mechanism 2, make circuit breaker tripping, compared to thermal deformation triggering mode of the prior art, also the impact of ambient temperature can not be subject to, circuit breaker can be threaded off fast and effectively.
As a kind of embodiment improved, the dropout part 23 that described actuating mechanism 2 comprises handle 22, the tripping 21 be connected with external contacts system and drives by electromagnetic mechanism 1, described tripping 21 links with handle 22 and dropout part 23, by the setting of handle 22, just can reclose circuit by the contact system that allows of people's craft, by the setting of dropout part 23 and tripping 21, just effectively can realize electromagnetic mechanism 1 and drive contact system open circuit, and the impact of ambient temperature can not be subject to, circuit breaker can be threaded off fast and effectively.
As a kind of embodiment improved, described tripping 21 side is provided with the snap close 24 of locking tripping 21 state, by the setting of snap close 24, just effectively can be locked the connected state of contact system by locking tripping 21.
As a kind of embodiment improved, described snap close 24 and housing hinge, its side offers the first fixture block 4, described tripping 21 and housing hinge, its side offers the second fixture block 5, described first fixture block 4 and the second fixture block 5 is inconsistent blocks tripping 21, when tripping 21 locks by snap close 24, first fixture block 4 will be inconsistent with the second fixture block 5, first fixture block 4 that will prop up of the second fixture block 5 avoids the first fixture block 4 to move, so just effectively achieve the effect that the first fixture block 4 blocks the second fixture block 5, make snap close 24 can be good at locking tripping 21.
As a kind of embodiment improved, conflict and have connector 6 in the side of described snap close 24, described connector 6 is provided with conflict post 61, described snap close 24 is also provided with conflict block 241, after described snap close 24 rotates, conflict post 61 is inconsistent with conflict block, when the first fixture block 4 after snap close 24 rotates being and the inconsistent locking tripping 21 of the second fixture block 5 time, conflict post 61 will be inconsistent with conflict block 241, connector 6 is connectors of the multistage interlock of circuit breaker, there is overload in circuit breaker, during short circuit, tripping 21 is pushed bar 9 and backs down, snap close 24 has moment toward being rotated counterclockwise, conflict block 241 is with follower link 6 to rotate generation power, thus by connector 6, just can be spliced into circuit breaker multiple levels and carry out multistage interlock dropout, make circuit breaker effectively can be combined into circuit breaker multiple levels, and thread off while can realizing between circuit breaker multiple levels.
As a kind of embodiment improved, described snap close 24 is connected by connecting rod 7 with handle 22, described handle 22 drivening rod 7 makes snap close 24 rotate the first fixture block 5 and the second fixture block 6 to be offseted, by the setting of connecting rod 7, just effectively can realize staff to stir handle 22 thus to drive snap close 24 to rotate, make tripping 21 rotate simultaneously, make contact system connection circuit and the effect of locking.
As a kind of embodiment improved, the side of described tripping 21 is fixedly connected with extension spring 211, the other end and the shell of the relative tripping 21 of described extension spring 211 fix, after handle 22 drives snap close 24 and then drives tripping 21 to rotate, extension spring 211 will be opened storage elasticity potential energy, then this elastic potential energy will be discharged when dropout, this makes it possible to effectively drive tripping 21 to thread off by extension spring 211, thus other extra increase energy storing structure is not just needed, energy storage is carried out compared to adopting torsion spring in prior art, extension spring 211 has the effect of longer service life.
As a kind of embodiment improved, described dropout part 23 one end and housing hinge, the other end and fore-set 14 inconsistent, described dropout part 23 is provided with supporter 8 and the drive post 9 inconsistent with tripping 21 near the side of one end of fore-set, described supporter 8 and housing hinge, one end and dropout part 23 inconsistent, the other end and handle 22 inconsistent, when fore-set 14 drives by electromagnet 12 and slides, dropout part 23 will by with motion, thus drive post 9 will by with motion, drive post 9 like this will drive tripping 21 to rotate, tripping 21 will be ejected from the locking of snap close 24, and drive contact system open circuit, this makes it possible to well play an effect of threading off, and the impact of ambient temperature can not be subject to, in time stirring handle 2222 and make breaker closing, handle 2222 will rotate, as shown in FIG., handle 22 is provided with a flange, when handle 22 rotates, flange will along with rotation, and it is inconsistent with supporter 8, the elastic force that supporter 8 is resisted between self and shell rotates, its one end is made no longer to withstand dropout part 23, so when fore-set 14 ejects, dropout part 23 just can be driven, when dropout rotates once again with back handle 22, flange is made no longer to withstand supporter 8, the elastic potential energy release of supporter 8, dropout part 23 will be withstood in its one end, if at this moment fore-set 14 ejects and also cannot promote dropout part 23 and move, so just can effectively fore-set 14 be resetted, in order to effectively threading off next time.
In sum, the operating structure of low-voltage circuit breaker of the present utility model, just the signal of telecommunication that fault sends can be detected by response external circuit mechanism timely and effectively by the setting of electromagnetic mechanism 1, and then just effectively sweeping action mechanism 2 can make contact system open circuit, owing to being driven by electromagnetic mechanism 1 in whole course of action, the problem that well can not drive dropout because of variation of ambient temperature utilizing thermal deformation to cause in prior art thus would not be there is.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. the operating structure of a low-voltage circuit breaker, it is characterized in that: comprise electromagnetic mechanism (1) and actuating mechanism (2), described electromagnetic mechanism (1) and external circuit mechanism couple, described actuating mechanism (2) and external contacts system interlink, when external circuit mechanism detects fault, external circuit mechanism drives electromagnetic mechanism (1) sweeping action mechanism (2) to make contact system open circuit.
2. the operating structure of low-voltage circuit breaker according to claim 1, it is characterized in that: described electromagnetic mechanism (1) comprises shell (11), be arranged on the yoke (10) in shell (11), described shell (11) offers through hole (13), described through hole (13) interior slippage is connected with fore-set (14), described yoke (10) comprises fixed part (102) and the movable part (101) that be connected turning with fixed part (102), described movable part (101) is inconsistent with fore-set (14), described fixed part (102) is provided with permanent magnet (15) and coil (12), described coil (12) and circuit mechanism (21) couple, described permanent magnet (15) side is fixed with supporting pieces (a), described supporting pieces (a) is fixed with spring (b), described spring (b) one end and supporting pieces (a) are fixed, the other end and movable part (101) are fixed, wherein, coil (12), permanent magnet (15) and spring (b) drive movable part (101) to overturn, and then drive fore-set (14) to touch actuating mechanism (2).
3. the operating structure of low-voltage circuit breaker according to claim 1 and 2, it is characterized in that: the dropout part (23) that described actuating mechanism (2) comprises handle (22), the tripping (21) be connected with external contacts system and drives by electromagnetic mechanism (1), described tripping (21) links with handle (22) and dropout part (23).
4. the operating structure of low-voltage circuit breaker according to claim 3, is characterized in that: described tripping (21) side is provided with the snap close (24) of locking tripping (21) state.
5. the operating structure of low-voltage circuit breaker according to claim 4, it is characterized in that: described snap close (24) and housing hinge, its side offers the first fixture block (4), described tripping (21) and housing hinge, its side offers the second fixture block (5), and described first fixture block (4) blocks tripping (21) with the second fixture block (5) is inconsistent.
6. the operating structure of low-voltage circuit breaker according to claim 5, it is characterized in that: conflict and have connector (6) in the side of described snap close (24), described connector (6) is provided with conflict post (61), described snap close (24) is also provided with conflict block (241), it is inconsistent with conflict block that described snap close (24) rotates post (61) of later conflicting.
7. the operating structure of low-voltage circuit breaker according to claim 4, it is characterized in that: described snap close (24) is connected by connecting rod (7) with handle (22), described handle (22) drivening rod (7) makes snap close (24) rotation the first fixture block (5) and the second fixture block (6) be offseted.
8. the operating structure of low-voltage circuit breaker according to claim 3, it is characterized in that: the side of described tripping (21) is fixedly connected with extension spring (211), the other end and the shell of the relative tripping (21) of described extension spring (211) fix.
9. the operating structure of low-voltage circuit breaker according to claim 3, it is characterized in that: described dropout part (23) one end and housing hinge, the other end and fore-set (14) inconsistent, described dropout part (23) is provided with supporter (8) and the drive post (9) inconsistent with tripping (21) near the side of one end of fore-set, described supporter (8) and housing hinge, one end and dropout part (23) inconsistent, the other end and handle (22) inconsistent.
10. the operating structure of low-voltage circuit breaker according to claim 8, it is characterized in that: described dropout part (23) one end and housing hinge, the other end and fore-set (14) inconsistent, described dropout part (23) is provided with supporter (8) and the drive post (9) inconsistent with tripping (21) near the side of one end of fore-set, described supporter (8) and housing hinge, one end and dropout part (23) inconsistent, the other end and handle (22) inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729235.4U CN204905191U (en) | 2015-09-18 | 2015-09-18 | Low -voltage circuit breaker's operational structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729235.4U CN204905191U (en) | 2015-09-18 | 2015-09-18 | Low -voltage circuit breaker's operational structure |
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| Publication Number | Publication Date |
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| CN204905191U true CN204905191U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520729235.4U Expired - Fee Related CN204905191U (en) | 2015-09-18 | 2015-09-18 | Low -voltage circuit breaker's operational structure |
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| CN (1) | CN204905191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243911A (en) * | 2020-01-15 | 2020-06-05 | 美高电气科技有限公司 | Novel mechanical mechanism circuit breaker |
-
2015
- 2015-09-18 CN CN201520729235.4U patent/CN204905191U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243911A (en) * | 2020-01-15 | 2020-06-05 | 美高电气科技有限公司 | Novel mechanical mechanism circuit breaker |
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Legal Events
| Date | Code | Title | Description |
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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: 20151223 |