CN204315494U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
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- CN204315494U CN204315494U CN201520039913.4U CN201520039913U CN204315494U CN 204315494 U CN204315494 U CN 204315494U CN 201520039913 U CN201520039913 U CN 201520039913U CN 204315494 U CN204315494 U CN 204315494U
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- arc
- circuit breaker
- moving contact
- miniature circuit
- control device
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Abstract
A kind of miniature circuit breaker.Mainly solve present circuit breaker and mostly only have a moving contact and arc control device, arc quenching effect is poor, and the circuit breaker of this spline structure when in use, a set of dynamic and static contact is only had to carry out disjunction, such one side pressure is larger, affect circuit breaker useful life, if the first dynamic and static contact lost efficacy on the other hand, the problem that can cause the accident.It is characterized in that: between described substrate and bonnet, be provided with the second moving contact and the second arc-extinguishing mechanism.The utility model provides a kind of miniature circuit breaker, except the tripping mechanism possessed except general circuit breaker and arc-extinguishing mechanism, the second arc control device, the second moving contact and the second fixed contact is also provided with between substrate and bonnet, second moving contact is with the holder pivots of tripping mechanism, reduce the operating pressure of the first moving contact, add useful life, arc quenching effect is good, and carry and ensure that circuit breaker working stability, there will not be accident.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker has structure advanced person, dependable performance, breaking capacity is strong, the feature such as small and exquisite aesthetic in appearance, make office building, the illumination of house and similar building, the overload of distribution line and equipment and the use of short-circuit protection, also can be used as the use of circuit infrequently make-break operation and conversion, present circuit breaker only has a moving contact and arc control device mostly (if application number is 201210030536.9, patent name is the patent of " miniature circuit breaker "), arc quenching effect is also poor, the circuit breaker of this spline structure when in use, only have a set of dynamic, fixed contact carrys out disjunction, such one side pressure is larger, affect circuit breaker useful life, if first moved on the other hand, fixed contact lost efficacy, can cause causing the accident.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of miniature circuit breaker, mainly solve present circuit breaker and mostly only have a moving contact and arc control device, arc quenching effect is also poor, and the circuit breaker of this spline structure when in use, only has a set of dynamic and static contact to carry out disjunction, such one side pressure is larger, affect circuit breaker useful life, if the first dynamic and static contact lost efficacy on the other hand, the problem caused the accident.
The technical scheme that the utility model adopts is:
A kind of miniature circuit breaker, comprise housing, described housing comprises substrate, protecgulum and bonnet, tripping mechanism and the first arc-extinguishing mechanism is provided with between described substrate and protecgulum, described tripping mechanism comprises support, first moving contact, magnetictrip, snap close and tripping, described magnetictrip is corresponding with described snap close, described tripping and snap close correspondence are arranged, described support is provided with moving contact jointed shaft, described first moving contact is hinged on described moving contact jointed shaft, described moving contact jointed shaft is also provided with the first reduction torsion spring, described first reduction torsion spring two ends compress with support and the first moving contact respectively, described first arc-extinguishing mechanism comprises the first arc control device, the second moving contact and the second arc-extinguishing mechanism is provided with between described substrate and bonnet, described second moving contact is located at described support back and is provided with the second reduction torsion spring, described second reduction torsion spring two ends compress with support and the second moving contact respectively, described second arc-extinguishing mechanism comprises the second arc control device and the first arc striking piece, described first arc striking piece one end is corresponding with the second arc control device, the other end is provided with second fixed contact corresponding with the second moving contact.
Described substrate and bonnet are also provided with the second arc striking piece, and described second arc striking piece one end is corresponding with the second moving contact back, another portion extend to the second arc control device bottom.
Described substrate is also provided with cooling mechanism, and described cooling mechanism comprises at least 2 dividing plates, and described dividing plate forms radiating groove between any two, and described radiating groove one end is corresponding with described first arc control device, and the other end communicates with the external world.
Described dividing plate is 2.
Described dividing plate is provided with some gear arc blocks, keeps off arc block staggered and described radiating groove is separated into multiple " Qian " shape groove described in each.
Also wiring mechanism is provided with in described housing, described wiring mechanism comprises patch bay and elasticity wire pressuring body, correspondingly with patch bay on described housing be provided with wiring hole, described elasticity wire pressuring body one end is connected with patch bay, and the other end compresses patch bay inwall and forms line ball portion for line ball.
Described elasticity wire pressuring body is shell fragment.
Described patch bay comprises the connecting plate that wire frame and wire frame extend, described wire frame comprises overhead gage and lower baffle plate, described overhead gage is provided with projection, the lower platen that described shell fragment upper plate and upper plate are bent to form downwards, described upper plate is provided with the spacing hole forming snap-fit engagement with described projection adaptation.
Described lower baffle plate is provided with wire pressing block, and described line ball portion is located to compress on described lower platen and with wire pressing block and coordinates.
The beneficial effects of the utility model are: the utility model provides a kind of miniature circuit breaker, except the tripping mechanism possessed except general circuit breaker and arc-extinguishing mechanism, the second arc control device, the second moving contact and the second fixed contact is also provided with between substrate and bonnet, second moving contact is with the holder pivots of tripping mechanism, reduce the operating pressure of the first moving contact, add useful life, arc quenching effect is good, and carry and ensure that circuit breaker working stability, there will not be accident.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the utility model embodiment.
Fig. 2 is the substrate front view of the utility model embodiment.
Fig. 3 is the substrate rearview of the utility model embodiment.
Fig. 4 is Fig. 2 A place enlarged drawing.
Fig. 5 is Fig. 2 B place enlarged drawing.
Fig. 6 is the schematic perspective view of the wire frame of the utility model embodiment.
Fig. 7 is the schematic perspective view of the wire frame of the utility model embodiment.
Fig. 8 is the schematic perspective view of the shell fragment of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in the figure, a kind of miniature circuit breaker, comprise housing 9, described housing 9 comprises substrate 1, protecgulum 2 and bonnet 3, tripping mechanism and the first arc-extinguishing mechanism is provided with between described substrate 1 and protecgulum 2, described tripping mechanism comprises support 11, first moving contact 12, magnetictrip 16, snap close 13 and tripping 14, described magnetictrip 16 is corresponding with described snap close 13, described tripping 14 and snap close 13 correspondence are arranged, described support is provided with moving contact jointed shaft 111, described first moving contact 12 is hinged on described moving contact jointed shaft 111, described moving contact jointed shaft 111 is also provided with the first reduction torsion spring, described first reduction torsion spring two ends compress with support 11 and the first moving contact 12 respectively, described first arc-extinguishing mechanism comprises the first arc control device 41, the second moving contact 15 and the second arc-extinguishing mechanism is provided with between described substrate 1 and bonnet 3, described second moving contact 15 is located at described support 11 back and is provided with the second reduction torsion spring, described second reduction torsion spring two ends compress with support 11 and the second moving contact 15 respectively, described second arc-extinguishing mechanism comprises the second arc control device 42 and the first arc striking piece 43, described first arc striking piece 43 one end is corresponding with the second arc control device 42, the other end is provided with second fixed contact 44 corresponding with the second moving contact 15.Tripping mechanism between protecgulum and substrate and arc-extinguishing mechanism are prior art, do not repeating, in the utility model, time circuit breaker is opened a sluice gate or closes a floodgate, except the first dynamic and static contact system and the first arc control device, the arc control device of the second moving contact and fixed contact and adaptation are also provided with between substrate and bonnet, like this when switching, can stepping institute stressed, extend circuit breaker useful life, can also have contact system for subsequent use on the other hand after the first dynamic and static contact lost efficacy, structure is simple, arc quenching effect is better, and result of use is good.The utility model provides a kind of miniature circuit breaker, except the tripping mechanism possessed except general circuit breaker and arc-extinguishing mechanism, the second arc control device, the second moving contact and the second fixed contact is also provided with between substrate and bonnet, second moving contact is with the holder pivots of tripping mechanism, reduce the operating pressure of the first moving contact, add useful life, and carry and ensure that circuit breaker working stability, there will not be accident.
In the utility model, as shown in the figure, described substrate 1 is also provided with cooling mechanism, described cooling mechanism comprises at least 2 dividing plates 51, described dividing plate 51 forms radiating groove 52 between any two, and described radiating groove 52 one end is corresponding with described first arc control device 41, and the other end communicates with the external world.The heat, foreign material and the cigarette that arc control device power are produced export to outside housing, reduce the temperature in circuit breaker, the components and parts in protective circuit breaker.
In the utility model, as shown in the figure, described dividing plate 51 is 2.Compact conformation is preferred version, also can according to actual requirement choose 3, even multiple.
In the utility model, as shown in the figure, described dividing plate 51 is provided with some gear arc blocks 53, keeps off arc block 53 staggered and described radiating groove 52 is separated into multiple " Qian " shape groove described in each.
Can prevent the electric arc that produces in arc control device from being come by the radiating groove circuit breaker external that flies out, more safe and reliable.
In the utility model, as shown in the figure, also wiring mechanism is provided with in described housing 9, described wiring mechanism comprises patch bay 81 and elasticity wire pressuring body 82, correspondingly with patch bay 81 on described housing 9 be provided with wiring hole, described elasticity wire pressuring body 82 one end is connected with patch bay 81, and the other end compresses the line ball portion 84 of patch bay 81 inwall formation for line ball.Here traditional terminal screw can be adopted to carry out wiring or adopt elasticity wire pressuring body of the present utility model to carry out line ball, being put into by electric wire between line ball portion and patch bay inwall and can complete wiring, structure is simple, easy to use.
In the utility model, as shown in the figure, described elasticity wire pressuring body 82 is shell fragment.Here also can adopt the elastic components such as spring to realize.
In the utility model, as shown in the figure, described patch bay 81 comprises the connecting plate that wire frame 811 and wire frame 811 extend, described wire frame 811 comprises overhead gage 812 and lower baffle plate 813, described overhead gage 812 is provided with projection 8121, the lower platen 822 that described shell fragment upper plate 821 and upper plate are bent to form downwards, described upper plate 821 is provided with the spacing hole 8211 forming snap-fit engagement with described projection 8121 adaptation.During use, the projection on upper plate sticks in spacing hole both can complete location, and structure is simple, easy to use.
In the utility model, as shown in the figure, described lower baffle plate 813 is provided with wire pressing block 8131, and described line ball portion 84 is located to compress on described lower platen 822 and with wire pressing block 8131 and coordinates.Carry out line ball by the cooperation of line ball portion and wire pressing block, more firmly, difficult drop-off, result of use is good.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection range of the present utility model.
Claims (9)
1. a miniature circuit breaker, comprise housing (9), described housing (9) comprises substrate (1), protecgulum (2) and bonnet (3), tripping mechanism and the first arc-extinguishing mechanism is provided with between described substrate (1) and protecgulum (2), described tripping mechanism comprises support (11), first moving contact (12), magnetictrip (16), snap close (13) and tripping (14), described magnetictrip (16) is corresponding with described snap close (13), described tripping (14) and snap close (13) correspondence are arranged, described support is provided with moving contact jointed shaft (111), described first moving contact (12) is hinged on described moving contact jointed shaft (111), described moving contact jointed shaft (111) is also provided with the first reduction torsion spring, described first reduction torsion spring two ends compress with support (11) and the first moving contact (12) respectively, described first arc-extinguishing mechanism comprises the first arc control device (41), it is characterized in that: between described substrate (1) and bonnet (3), be provided with the second moving contact (15) and the second arc-extinguishing mechanism, described second moving contact (15) is located at described support (11) back and is provided with the second reduction torsion spring, described second reduction torsion spring two ends compress with support (11) and the second moving contact (15) respectively, described second arc-extinguishing mechanism comprises the second arc control device (42) and the first arc striking piece (43), described first arc striking piece (43) one end is corresponding with the second arc control device (42), the other end is provided with second fixed contact (44) corresponding with the second moving contact (15).
2. a kind of miniature circuit breaker according to claim 1, it is characterized in that: described substrate (1) and bonnet (3) are also provided with the second arc striking piece (49), described second arc striking piece (49) one end is corresponding with the second moving contact (15) back, and another portion extends to and the second arc control device (42) bottom.
3. a kind of miniature circuit breaker according to claim 1, it is characterized in that: (1) is also provided with cooling mechanism with described substrate, described cooling mechanism comprises at least 2 dividing plates (51), described dividing plate (51) forms radiating groove (52) between any two, described radiating groove (52) one end is corresponding with described first arc control device (41), and the other end communicates with the external world.
4. a kind of miniature circuit breaker according to claim 3, is characterized in that: described dividing plate (51) is 2.
5. a kind of miniature circuit breaker according to claim 3, is characterized in that: described dividing plate (51) is provided with some gear arc blocks (53), keeps off arc block (53) staggered and described radiating groove (52) is separated into multiple " Qian " shape groove described in each.
6. a kind of miniature circuit breaker according to claim 1, it is characterized in that: described housing is also provided with wiring mechanism in (9), described wiring mechanism comprises patch bay (81) and elasticity wire pressuring body (82), described housing (9) is above corresponding with patch bay (81) is provided with wiring hole, described elasticity wire pressuring body (82) one end is connected with patch bay (81), and the other end compresses patch bay (81) inwall and forms the line ball portion (84) being used for line ball.
7. a kind of miniature circuit breaker according to claim 6, is characterized in that: described elasticity wire pressuring body (82) is shell fragment.
8. a kind of miniature circuit breaker according to claim 7, it is characterized in that: described patch bay (81) comprises wire frame (811) and the upper connecting plate extended of wire frame (811), described wire frame (811) comprises overhead gage (812) and lower baffle plate (813), described overhead gage (812) is provided with projection (8121), the lower platen (822) that described shell fragment upper plate (821) and upper plate are bent to form downwards, described upper plate (821) is provided with the spacing hole (8211) forming snap-fit engagement with described projection (8121) adaptation.
9. a kind of miniature circuit breaker according to claim 8, is characterized in that: described lower baffle plate (813) is provided with wire pressing block (8131), and it is upper and compress with wire pressing block (8131) and coordinate that described line ball portion (84) is located at described lower platen (822).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039913.4U CN204315494U (en) | 2015-01-21 | 2015-01-21 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039913.4U CN204315494U (en) | 2015-01-21 | 2015-01-21 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204315494U true CN204315494U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520039913.4U Active CN204315494U (en) | 2015-01-21 | 2015-01-21 | A kind of miniature circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN204315494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511290A (en) * | 2018-05-31 | 2018-09-07 | 海格科技股份有限公司 | The tripping mechanism of miniature circuit breaker |
-
2015
- 2015-01-21 CN CN201520039913.4U patent/CN204315494U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511290A (en) * | 2018-05-31 | 2018-09-07 | 海格科技股份有限公司 | The tripping mechanism of miniature circuit breaker |
| CN108511290B (en) * | 2018-05-31 | 2024-04-26 | 海格科技股份有限公司 | Tripping mechanism of miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180619 Address after: 325000 258 weft twenty Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Patentee after: High energy grid electric Limited by Share Ltd Address before: 325603 258 weft twenty Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Patentee before: Wenzhou high energy electric Co., Ltd |