CN203300573U - Multi-breakpoint plastic shell circuit breaker - Google Patents
Multi-breakpoint plastic shell circuit breaker Download PDFInfo
- Publication number
- CN203300573U CN203300573U CN2013203113445U CN201320311344U CN203300573U CN 203300573 U CN203300573 U CN 203300573U CN 2013203113445 U CN2013203113445 U CN 2013203113445U CN 201320311344 U CN201320311344 U CN 201320311344U CN 203300573 U CN203300573 U CN 203300573U
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- utmost point
- circuit breaker
- pole
- short circuit
- conductor
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- 239000004020 conductor Substances 0.000 claims abstract description 43
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 230000003068 static effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
A multi-breakpoint plastic shell circuit breaker belongs to the technical field of low-voltage electrical appliances. The multi-breakpoint plastic shell circuit breaker comprises a four-pole insulated casing provided with a first pole, a second pole, a third pole and a fourth pole which are sequentially arranged, wherein the inside of each pole is provided with a group of mutually-matched movable and static contacts. The multi-breakpoint plastic shell circuit breaker is characterized in that the two non-adjacent moving contacts of the second pole and the fourth pole are electrically connected by a wire and the two ends of the static contacts of the second pole and the third pole are short-circuited by a first short-circuiting conductor in the insulated casing. The multi-breakpoint plastic shell circuit breaker has the following advantages: the breaking of the circuit breaker is convenient under high working voltage, and the requirements on high working voltage and high protective characteristic are satisfied; the boundary dimension of the circuit breaker is not increased and the safe reliability for users to use the circuit breaker is improved; and the long-time-delay action characteristic is not affected when users use the circuit breaker.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of multi-break plastic-shell type circuit breaker.
Background technology
Along with the development of new energy technology, low voltage component is had higher requirement.Especially the development along with photovoltaic power plant grows, and the performance index of the protection component that power plant is required have also had higher requirement.For example, in the photo-voltaic power supply direct current system, the rated operational voltage of low-voltage electrical apparatus is up to DC1000V.Take the mode of connection of multibreak series connection, can improve the interrupting performance of circuit breaker.To this, domestic and international many producers have also launched respectively various breaker connection application schemes.External wiring terminal place at circuit breaker carries out wiring, make the two poles of the earth of circuit breaker or more multi-stage series connection get up to form the series connection breakpoint.This scheme generally need to adopt outside short circuit conductor to carry out at the scene wiring, and the user uses inconvenience, and it is large to take up room
,And the wiring at engineering application middle connecting terminal place does not reach the length of regulation; so just cause the heat accumulation of junction to increase; heat is behind circuit breaker inside; directly the long delay operating characteristics of bimetal leaf as the long delay release adopted in impact, causes the breaker protective property inaccuracy.
Summary of the invention
After the short circuit conductor of existing breaker of plastic casing due to the employing outside, the user need carry out field connection, complex operation, and the problem such as cause taking up room large, the purpose of this utility model is that a kind of multi-break plastic-shell type circuit breaker will be provided, adopt preset connected mode, at the moving contact of breaker place and the breaker connecting terminal place connect with special-purpose conductor, make the two poles of the earth of circuit breaker or more multi-stage series connection get up to form the series connection breakpoint, need not the user for the breakpoint of connecting voluntarily in the wiring of binding post place; The conductor profile that connects simultaneously use does not exceed described insulation shell, has guaranteed that circuit breaker overall dimension can not increase; The long delay characteristic is also to adjust under the mode of this preset wiring, and when the user uses, its operating characteristics can not be affected yet.
The purpose of this utility model reaches like this, a kind of multi-break plastic-shell type circuit breaker, comprise have first utmost point that is arranged in order, the insulation shell of second utmost point, the 3rd utmost point, the 4th utmost point four utmost points, each extremely inner one group of moving contact that cooperatively interacts and fixed contact of being provided with, be characterized in: in insulation shell, second utmost point is electrically connected to by wire with the 4th extremely non-conterminous two groups of moving contacts, and the two ends of the fixed contact of second utmost point and the 3rd utmost point are by the first short circuit conductor short circuit.
In a specific embodiment of the present utility model, described circuit breaker also comprises two the first binding posts to external connection and two the second binding posts to external connection, one of them binding post of the first binding post is electrically connected to the fixed contact of first utmost point, another binding post is electrically connected to the fixed contact of the 4th utmost point, and one of them binding post of the second binding post is electrically connected to the moving contact of first utmost point, and another binding post is electrically connected to the moving contact of the 3rd utmost point.
In another specific embodiment of the present utility model, described first utmost point, second utmost point, the 3rd utmost point, the 4th utmost point four interpolar two neighboring pole separate and mutually insulated by the partition wall on pedestal, partition wall between described second utmost point and the 3rd utmost point is offering the first groove near end, fixed contact place, described the first short circuit conductor embeds in described the first groove, and the first short circuit conductor two ends are connected with the conducting terminal of the fixed contact of the 3rd utmost point with adjacent second utmost point respectively.
In another specific embodiment of the present utility model, described the first short circuit conductor offers the first cavity in the centre of length direction one side,, by coordinating of the first cavity and the first groove, make the first outer surface of described the first short circuit conductor not exceed the second outer surface of described pedestal.
Also have a specific embodiment of the present utility model, be respectively equipped with protective cover at the upper and lower end corresponding to second utmost point and the 3rd utmost point the two poles of the earth on described insulation shell.
In of the present utility model and then specific embodiment, but described fixed contact and the first short circuit conductor integral production moulding.
More of the present utility model and in specific embodiment, described wire is flexible conductor, hard conductor or both combinations.
In more of the present utility model and then specific embodiment, described multi-break plastic-shell type circuit breaker also is provided with at least one release.
The utility model is owing to adopting said structure, the beneficial effect that has: adopt preset connected mode to make circuit breaker realize the multibreak series winding, increase the cut-out mouth of short circuit current, make each fracture bear respectively a part of voltage and corresponding arc energy, be convenient to the circuit breaker disjunction when high working voltage, realize high working voltage, the requirement of high protective feature; Simultaneously, short circuit conductor and insulation shell are easy for installation, and the short circuit conductor profile does not exceed insulation shell, and circuit breaker overall dimension can not increase, and the conductor place assembles corresponding protective cover, have improved the security reliability that the user uses; In addition, the long delay characteristic is also to adjust under the mode of this preset wiring, and when the user uses, its operating characteristics can not be affected yet.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model one embodiment.
Fig. 2 is the electrical schematic diagram of another embodiment of the utility model.
Fig. 3 is a kind of three-dimensional structure diagram (removing insulation shell) of the utility model four utmost point breaker of plastic casing.
Fig. 4 is the stereochemical structure sketch (removing upper cover and the protective cover of insulation shell) of Fig. 3 embodiment.
Fig. 5 is the overall structure schematic diagram (removing protective cover) of Fig. 3 embodiment.
Fig. 6 is the second stereochemical structure sketch (removing insulation shell) of the utility model four utmost point breaker of plastic casing.
Fig. 7 is the stereochemical structure sketch (removing upper cover and the protective cover of insulation shell) of Fig. 6 embodiment.
Fig. 8 is a three-dimensional exploded view of the utility model embodiment four utmost point breaker of plastic casing.
Fig. 9 is the stereochemical structure sketch of the third embodiment after removing insulation shell.
Figure 10 is the stereogram of the third embodiment.
In figure: 1. insulation shell, 11. pedestals, 111. second outer surfaces; 12. partition wall, 121. first grooves, 122. second grooves, 123. the 3rd grooves; 2. the first short circuit conductor, 21. first cavitys, 22. first outer surfaces; 3. moving contact, 31. moving contact wires; 4. insulation rotating shaft; 5. release; 6. fixed contact, 61. conducting terminals; 7. wire; 8. securing member; 9. protective cover; 10. the second short circuit conductor, 101. second cavitys, 102 the 3rd outer surfaces.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; the applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but the applicant is not restriction to technical scheme to the description of embodiment, anyly according to the utility model design, changes in the form rather than substance all and should be considered as protection range of the present utility model.
see also Fig. 8 and in conjunction with Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 9 and Figure 10, a kind of multi-break plastic-shell type circuit breaker of the utility model, comprise and have first utmost point, second utmost point, the insulation shell 1 of the 3rd utmost point and the 4th utmost point four utmost points, insulation rotating shaft 4, release 5 and contact system, extremely all be provided with one group of contact system in inside in each of insulation shell 1, every group of contact system has moving contact 3 and the fixed contact 6 that cooperatively interacts, described moving contact 3 has four groups, four groups of moving contacts 3 are installed on respectively in insulation rotating shaft 4 with the spring (not shown) identical with moving contact 3 quantity, respectively organize mutually insulated between moving contact after installation, can rotate with respect to insulation rotating shaft 4, described insulation rotating shaft 4 is rotatably installed on the pedestal 11 of described insulation shell 1, described fixed contact 6 is corresponding with moving contact 3, four groups of fixed contacts 6 are fixedly mounted on described pedestal 11, described release 5 has at least a release 5 to be arranged on first utmost point, second utmost point, the 3rd utmost point, the 4th utmost point four extremely in any utmost point, the present embodiment is preferably two, wherein one is arranged on only first utmost point, another is arranged on second utmost point, the 3rd utmost point, the 4th extremely in any utmost point.Described circuit breaker also comprises two the first binding posts to external connection and two the second binding posts to external connection, one of them binding post of the first binding post is electrically connected to the fixed contact 6 of first utmost point, another binding post is electrically connected to the fixed contact 6 of the 4th utmost point, and one of them binding post of the second binding post is electrically connected to the moving contact 3 of first utmost point, and another binding post is electrically connected to the moving contact 3 of the 3rd utmost point.In insulation shell 1, second utmost point is electrically connected to by wire 7 with the 4th extremely non-conterminous two groups of moving contacts 3, and the two ends of the fixed contact 6 of second utmost point and the 3rd utmost point are by the first short circuit conductor 2 short circuits, the fixed contact 6 of described second utmost point and the 3rd utmost point and the first short circuit conductor 2 can be separate, also can one-body moldedly make.Described wire 7 is flexible conductor, hard conductor or both combinations.Described first utmost point, second utmost point, the 3rd utmost point, the 4th utmost point four interpolar two neighboring pole separate and mutually insulated by the partition wall 12 on pedestal 11, partition wall 12 between described second utmost point and the 3rd utmost point, the 3rd utmost point and the 4th utmost point offers the second groove 122 at wire 7 places, two the second grooves 122 that pass between second utmost point and the 3rd utmost point, the 3rd utmost point and the 4th utmost point for wire 7 are electrically connected to the extremely non-conterminous two groups of moving contacts of second utmost point and the 4th, and mutually insulated between the moving contact of wire 7 and the 3rd utmost point.The fixed contact 6 of described second utmost point, the 3rd utmost point has conducting terminal 61, partition wall 12 between described second utmost point and the 3rd utmost point offers the first groove 121 in the end near conducting terminal 61 places, described the first short circuit conductor 2 offers the first cavity 21 in the centre of length direction one side, by coordinating of the first cavity 21 and the first groove 121, described the first short circuit conductor 2 is embedded in the first groove 121 of described partition walls 12, and the two ends that make the first short circuit conductor 2 are connected with adjacent second utmost point and the conducting terminal 61 of the 3rd utmost point respectively by securing member 8.The first outer surface 22 of the first short circuit conductor 2 after connection does not exceed the second outer surface 111 of described pedestal 11.Be respectively equipped with protective cover 9 at the upper and lower end corresponding to second utmost point and the 3rd utmost point the two poles of the earth on described insulation shell 1.
Embodiment 1:
see also Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, described circuit breaker has the second short circuit conductor 10, described the second short circuit conductor 10 1 ends are arranged on the 3rd utmost point and with the moving contact 3 of the 3rd utmost point, are electrically connected to, the other end is arranged on the 4th utmost point and as second binding post of circuit breaker to external connection, partition wall 12 between the 3rd utmost point and the 4th utmost point is offering the 3rd groove 123 near the second short circuit conductor 10 places, the second short circuit conductor 10 offers the second cavity 101 in the centre of length direction one side, by coordinating of the second cavity 101 and the 3rd groove 123, described the second short circuit conductor 10 is embedded in described the 3rd groove 123, the moving contact wire 31 of the moving contact of the 3rd utmost point is connected to an end that is positioned at the 3rd utmost point of the second short circuit conductor 10, mutually insulated between moving contact wire 31 and wire 7, the 3rd outer surface 102 of the second short circuit conductor 10 does not exceed the second outer surface 111 of described pedestal 11.
Embodiment 2:
See also Fig. 6 and Fig. 7, in the present embodiment, the second groove 122 that the moving contact wire 31 of the moving contact of the 3rd utmost point passes between the 3rd utmost point and the 4th utmost point is directly connected to the 4th utmost point, make the 4th utmost point as second binding post of circuit breaker to external connection, mutually insulated between moving contact wire 31 and wire 7.
Embodiment 3:
See also Fig. 9 and Figure 10, release 5 is two in the present embodiment, one is arranged on first utmost point, another can be arranged on the 3rd utmost point, second utmost point is connected by wire 7 with the 4th extremely non-conterminous two groups of moving contacts 3, described wire 7 adopts hard conductor, the moving contact wire 31(of the 3rd utmost point moving contact also can adopt hard conductor) the second groove 122 of passing between the 3rd utmost point and the 4th utmost point is connected to the 4th utmost point, make the 4th utmost point as second binding post of circuit breaker to external connection, mutually insulated between moving contact wire 31 and wire 7.
See also Fig. 1 and Fig. 2, provided two kinds of electric key wiring diagrams of four utmost point breaker of plastic casing.Fig. 1 wherein: the positive pole of power supply is connected to the first binding post of circuit breaker first utmost point, negative pole is connected to the first binding post of circuit breaker the 4th utmost point, one of load is connected to the second binding post of circuit breaker first utmost point, and the other end is connected to the second binding post of circuit breaker the 4th utmost point.Fig. 2: the positive pole of power supply is connected to the second binding post of circuit breaker first utmost point, negative pole is connected to the second binding post of circuit breaker the 4th utmost point, one of load is connected to the first binding post of circuit breaker first utmost point, and the other end is connected to the first binding post of circuit breaker the 4th utmost point.
Claims (8)
1.
A kind of multi-break plastic-shell type circuit breaker, comprise have first utmost point that is arranged in order, the insulation shell (1) of second utmost point, the 3rd utmost point, the 4th utmost point four utmost points, each extremely inner one group of moving contact that cooperatively interacts (3) and fixed contact (6) of being provided with, it is characterized in that: in insulation shell (1), second utmost point is electrically connected to by wire (7) with the 4th extremely non-conterminous two groups of moving contacts (3), and the two ends of the fixed contact (6) of second utmost point and the 3rd utmost point are by the first short circuit conductor (2) short circuit.
2.
Multi-break plastic-shell type circuit breaker according to claim 1, it is characterized in that described circuit breaker also comprises two the first binding posts to external connection and two the second binding posts to external connection, one of them binding post of the first binding post is electrically connected to the fixed contact (6) of first utmost point, another binding post is electrically connected to the fixed contact (6) of the 4th utmost point, and one of them binding post of the second binding post is electrically connected to the moving contact (3) of first utmost point, and another binding post is electrically connected to the moving contact (3) of the 3rd utmost point.
3.
Multi-break plastic-shell type circuit breaker according to claim 1, it is characterized in that described first utmost point, second utmost point, the 3rd utmost point, the 4th utmost point four interpolar two neighboring pole separate and mutually insulated by the partition wall (12) on pedestal (11), partition wall (12) between described second utmost point and the 3rd utmost point offers the first groove (121) in the end of locating near fixed contact (6), described the first short circuit conductor (2) embeds in described the first groove (121), and the first short circuit conductor (2) two ends are connected with the conducting terminal (61) of the fixed contact (6) of adjacent second utmost point and the 3rd utmost point respectively.
4.
Multi-break plastic-shell type circuit breaker according to claim 3, it is characterized in that described the first short circuit conductor (2) offers the first cavity (21) in the centre of length direction one side,, by coordinating of the first cavity (21) and the first groove (121), make first outer surface (22) of described the first short circuit conductor (2) not exceed second outer surface (111) of described pedestal (11).
5.
Multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that described insulation shell (1) upward is respectively equipped with protective cover (9) at the upper and lower end corresponding to second utmost point and the 3rd utmost point the two poles of the earth.
6.
Multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that fixed contact (6) and the one-body molded making of the first short circuit conductor (2) of described second utmost point, the 3rd utmost point.
7.
Multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that described wire (7) is flexible conductor, hard conductor or both combinations.
8.
Multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that described multi-break plastic-shell type circuit breaker also is provided with at least one release (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203113445U CN203300573U (en) | 2013-06-03 | 2013-06-03 | Multi-breakpoint plastic shell circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203113445U CN203300573U (en) | 2013-06-03 | 2013-06-03 | Multi-breakpoint plastic shell circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300573U true CN203300573U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203113445U Expired - Lifetime CN203300573U (en) | 2013-06-03 | 2013-06-03 | Multi-breakpoint plastic shell circuit breaker |
Country Status (1)
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| CN (1) | CN203300573U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914109A (en) * | 2016-07-06 | 2016-08-31 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN105931928A (en) * | 2016-07-06 | 2016-09-07 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN107045964A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | A kind of multipole circuit breaker loop structure |
| CN108922827A (en) * | 2018-07-26 | 2018-11-30 | 哈尔滨工业大学 | A kind of contact mechanism in four breakpoints contactor |
| CN113410103A (en) * | 2020-03-17 | 2021-09-17 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
-
2013
- 2013-06-03 CN CN2013203113445U patent/CN203300573U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045964A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | A kind of multipole circuit breaker loop structure |
| CN107045964B (en) * | 2016-02-05 | 2020-02-21 | 上海良信电器股份有限公司 | A multi-pole circuit breaker circuit structure |
| CN105914109A (en) * | 2016-07-06 | 2016-08-31 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN105931928A (en) * | 2016-07-06 | 2016-09-07 | 上海电科电器科技有限公司 | Conductive loop of circuit breaker |
| CN105914109B (en) * | 2016-07-06 | 2018-09-04 | 上海电科电器科技有限公司 | The galvanic circle of breaker |
| EP3483912A4 (en) * | 2016-07-06 | 2020-01-15 | Seari Electric Technology Co., Ltd. | ELECTRICALLY CONDUCTIVE LOOP OF A CIRCUIT BREAKER |
| CN108922827A (en) * | 2018-07-26 | 2018-11-30 | 哈尔滨工业大学 | A kind of contact mechanism in four breakpoints contactor |
| CN113410103A (en) * | 2020-03-17 | 2021-09-17 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
| CN113410103B (en) * | 2020-03-17 | 2023-01-10 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |