CN109166774B - Plastic case circuit breaker - Google Patents
Plastic case circuit breaker Download PDFInfo
- Publication number
- CN109166774B CN109166774B CN201811262400.4A CN201811262400A CN109166774B CN 109166774 B CN109166774 B CN 109166774B CN 201811262400 A CN201811262400 A CN 201811262400A CN 109166774 B CN109166774 B CN 109166774B
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- CN
- China
- Prior art keywords
- contact
- copper
- circuit breaker
- copper clamp
- wiring board
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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Abstract
The invention discloses a molded case circuit breaker which comprises a circuit breaker body, an arc striking angle, a first fixed contact, a second fixed contact, an arc striking contact, a moving contact, a first copper clamp, a second copper clamp, a third copper clamp, a first conduction band, a second conduction band, a first wiring board, a second wiring board, a fourth copper clamp, a fifth copper clamp, a sixth copper clamp, a first moving contact, a second moving contact and a fixed contact, wherein the fixed contact is fixedly arranged at one side of the inside of the molded case circuit breaker body, the arc striking angle is fixedly arranged at one side of the top of the fixed contact, the first fixed contact is fixedly welded at one side of the fixed contact, two second fixed contacts are correspondingly welded at one side of the top of the fixed contact, the second moving contact is fixedly welded at one end of the bottom of the arc striking contact, the moving contact is four, and the first moving contact is fixedly welded at one side of the bottom of the moving contact.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a molded case circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying and breaking a current under normal loop conditions and closing, carrying and breaking a current under abnormal loop conditions within a prescribed time, and can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply line, a motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the circuit breaker is equivalent to a combination of a fuse type switch, an overheat relay and the like. And the existing majority of circuit breakers have large volume, complex structure, high production cost, low breaking capacity and high temperature after breaking fault current.
Disclosure of Invention
The invention aims to provide a molded case circuit breaker so as to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a molded case circuit breaker, includes circuit breaker body, arc striking angle, first stationary contact, second stationary contact, arc striking contact, moving contact, first copper clip, second copper clip, third copper clip, first conduction band, second conduction band, first wiring board, second wiring board, fourth copper clip, fifth copper clip, sixth copper clip, first moving contact, second moving contact and stationary contact, the inside one side fixed mounting of molded case circuit breaker body has the stationary contact, top one side fixed mounting of stationary contact has the arc striking angle, one side welded fastening of stationary contact has first stationary contact, and the next door of first stationary contact is located the top one side corresponding welded fastening of stationary contact has two second stationary contacts, the bottom one end welded fastening of arc striking contact has the second moving contact, the moving contact has four, and the bottom one side welded fastening of moving contact has first moving contact, the two sides of the arc striking contact are correspondingly provided with a third copper clip and a sixth copper clip, the other sides of the third copper clip and the sixth copper clip are correspondingly provided with two moving contacts, the second copper clip and the fifth copper clip are respectively arranged at the two sides of the two moving contacts, the other sides of the second copper clip and the fifth copper clip are correspondingly provided with two moving contacts, the first copper clip and the fourth copper clip are respectively arranged at the two sides of the two moving contacts, the other ends of the arc striking contact, the moving contact, the first copper clip, the second copper clip, the third copper clip, the fourth copper clip, the fifth copper clip and the sixth copper clip are fixed through shaft assembly, one sides of the bottoms of the first copper clip, the second copper clip, the third copper clip, the fourth copper clip, the fifth copper clip and the sixth copper clip are fixedly connected with a first conduction band and a second conduction band through screws, and the first conduction band and the second conduction band are stacked, the bottom one end of first conduction band passes through screw fixed connection first wiring board and second wiring board with one side of the top of second wiring board, and first wiring board and second wiring board stack the setting, one side of first wiring board and the opposite side fixed connection of circuit breaker body.
Further, the fixed contact is fixedly connected with the arc striking angle through rivets, and the two rivets are correspondingly arranged on two sides of the top of the fixed contact beside the first fixed contact.
Further, the first stationary contact and the second stationary contact are matched with the second movable contact and the first movable contact respectively.
Further, the second conduction band is fixedly arranged on the top of the first conduction band.
Further, the second wiring board is fixedly mounted on the top of the first wiring board.
Further, the circuit breaker is compatibilized to 1250A.
Furthermore, the circuit breaker is small in size and has a phase spacing of 70mm; the 3P outline dimension is as follows; 275.5mm x 210mm x 103mm; the 4P outline dimension is as follows: 275.5mm x 280mm x 103mm.
Compared with the prior art, the invention has the following beneficial effects: the molded case circuit breaker is small in size, so that the operation is more convenient; the 5 contact structures are added with the contact points of the moving contact and the fixed contact, so that the moving contact and the fixed contact are matched better, and the breaking capacity is improved; the contact is stressed uniformly, and the temperature rise value is stable; the capacity is increased to 1250A, the structure is simple, the arc striking contact structure is arranged, the breaking capacity is improved, the temperature rise is reduced, and the cost is saved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic plan view of a circuit breaker body of the present invention;
FIG. 2 is a schematic perspective view of the contact structure of the present invention;
FIG. 3 is a front view of the contact structure of the present invention;
FIG. 4 is a top view of the contact structure of the present invention;
fig. 5 is a schematic view of the external dimensions of the breaker body of the present invention.
In the figure: 1. a circuit breaker body; 2. arc striking angles; 3. a first stationary contact; 4. a second stationary contact; 5. an arc striking contact; 6. a moving contact; 7. a first copper clip; 8. a second copper clip; 9. a third copper clip; 10. a first conduction band; 11. a second conduction band; 12. a first wiring board; 13. a second wiring board; 14. a fourth copper clip; 15. a fifth copper clip; 16. a sixth copper clip; 17. a first movable contact; 18. a second movable contact; 19. and (5) a static contact.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: a molded case circuit breaker comprises a circuit breaker body 1, an arc striking angle 2, a first fixed contact 3, a second fixed contact 4, an arc striking contact 5, a moving contact 6, a first copper clamp 7, a second copper clamp 8, a third copper clamp 9, a first conduction band 10, a second conduction band 11, a first wiring board 12, a second wiring board 13, a fourth copper clamp 14, a fifth copper clamp 15, a sixth copper clamp 16, a first moving contact 17, a second moving contact 18 and a fixed contact 19, a fixed contact 19 is fixedly arranged on one side of the inside of the molded case circuit breaker body 1, an arc striking angle 2 is fixedly arranged on one side of the top of the fixed contact 19, a first fixed contact 3 is fixedly welded on one side of the fixed contact 19, two second fixed contacts 4 are correspondingly fixedly welded on one side of the top of the fixed contact 19 beside the first fixed contact 3, the fixed contact 19 is fixedly connected with the arc striking angle 2 through rivets, the two rivets are correspondingly arranged on the two sides of the top of the fixed contact 19 beside the first fixed contact 3, the stability of connection is ensured, one end of the bottom of the arc striking contact 5 is fixedly welded with the second movable contact 18, four movable contacts 6 are arranged, one side of the bottom of the movable contact 6 is fixedly welded with the first movable contact 17, the first fixed contact 3 and the second fixed contact 4 are respectively matched with the second movable contact 18 and the first movable contact 17, the two sides of the arc striking contact 5 are correspondingly provided with a third copper clamp 9 and a sixth copper clamp 16, the other sides of the third copper clamp 9 and the sixth copper clamp 16 are correspondingly provided with two movable contacts 6, the second copper clamp 8 and the fifth copper clamp 15 are respectively arranged on the two sides of the two movable contacts 6, the other sides of the second copper clamp 8 and the fifth copper clamp 15 are correspondingly provided with two movable contacts 6, the first copper clamp 7 and the fourth copper clamp 14 are respectively arranged on the two sides of the two movable contacts 6, the arc striking contact 5, the other ends of the movable contact 6, the first copper clamp 7, the second copper clamp 8, the third copper clamp 9, the fourth copper clamp 14, the fifth copper clamp 15 and the sixth copper clamp 16 are fixed through shaft assembly, one sides of bottoms of the first copper clamp 7, the second copper clamp 8, the third copper clamp 9, the fourth copper clamp 14, the fifth copper clamp 15 and the sixth copper clamp 16 are fixedly connected with the first conduction band 10 and the second conduction band 11 through screws, the first conduction band 10 and the second conduction band 11 are stacked, the second conduction band 11 is fixedly installed on the top of the first conduction band 10, one end of the bottom of the first conduction band 10 is fixedly connected with one side of the top of the second wiring board 13 through screws to be fixedly connected with the first wiring board 12 and the second wiring board 13, the second wiring board 13 is fixedly installed on the top of the first wiring board 12, and one side of the first wiring board 12 is fixedly connected with the other side of the breaker body 1; the circuit breaker body 1 is small in size, so that the operation is more convenient; the first movable contact 17 and the second movable contact 18 are respectively arranged on one striking contact 5 and four movable contacts 6, and the first fixed contact 3 and the two second fixed contacts 4 are arranged on the fixed contact 19, so that the movable contact and the fixed contacts are matched better, the breaking capacity is improved, the movable contact 6 and the fixed contacts 19 are uniformly stressed, the temperature rise value is stable, meanwhile, the structure is simple, the performance is stable, the assembly is convenient, the cost is saved, the capacity of the circuit breaker is increased to 1250A, the size is small, and the mutual distance is 70mm; the 3P outline dimension is as follows; 275.5mm x 210mm x 103mm; the 4P outline dimension is as follows: 275.5mm x 280mm x 103mm.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a moulded case circuit breaker, including circuit breaker body (1), arc striking angle (2), first stationary contact (3), second stationary contact (4), arc striking contact (5), moving contact (6), first copper clip (7), second copper clip (8), third copper clip (9), first conduction band (10), second conduction band (11), first wiring board (12), second wiring board (13), fourth copper clip (14), fifth copper clip (15), sixth copper clip (16), first moving contact (17), second moving contact (18) and stationary contact (19), its characterized in that: the plastic case circuit breaker comprises a plastic case circuit breaker body (1), wherein a fixed contact (19) is fixedly arranged on one side of the inside of the plastic case circuit breaker body (1), an arc striking angle (2) is fixedly arranged on one side of the top of the fixed contact (19), a first fixed contact (3) is fixedly welded on one side of the fixed contact (19), two second fixed contacts (4) are fixedly welded on one side of the top of the fixed contact (19) beside the first fixed contact (3), a second movable contact (18) is fixedly welded on one end of the bottom of the arc striking contact (5), four movable contacts (6), a first movable contact (17) is fixedly welded on one side of the bottom of the movable contact (6), a third copper clamp (9) and a sixth copper clamp (16) are correspondingly arranged on two sides of the third copper clamp (9) and the sixth copper clamp (16), two movable contacts (6) are correspondingly arranged on the other side of the third copper clamp (9) and the sixth copper clamp (16), the second copper clamp (8) and the fifth copper clamp (15) are respectively arranged on two sides of the two movable contacts (6), the second movable contact (18) are fixedly welded on one side of the bottom of the movable contact (5), the movable contact (6), a first movable contact (17) is fixedly arranged on one side of the bottom of the movable contact (6), and the two movable contact (6) are correspondingly arranged on the other side of the movable contact (6 The other ends of the second copper clamp (8), the third copper clamp (9), the fourth copper clamp (14), the fifth copper clamp (15) and the sixth copper clamp (16) are fixed through shaft assembly, the first copper clamp (7), the second copper clamp (8), the third copper clamp (9), the fourth copper clamp (14), the fifth copper clamp (15) and the bottom side of the sixth copper clamp (16) are fixedly connected with the first conduction band (10) and the second conduction band (11) through screws, the first conduction band (10) and the second conduction band (11) are stacked, one end of the bottom of the first conduction band (10) is fixedly connected with the first wiring board (12) and the second wiring board (13) through screws on one side of the top of the second wiring board (13), the first wiring board (12) and the second wiring board (13) are stacked, one side of the first wiring board (12) is fixedly connected with the other side of the static contact body (1), the static contact (19) is fixedly connected with the contact (2) through rivets, and the two rivets are correspondingly arranged on the first side of the static contact (3) and the second contact (19) are respectively matched with the first contact (17) and the second contact (17) on the two sides.
2. A molded case circuit breaker according to claim 1, wherein: the second conduction band (11) is fixedly arranged at the top of the first conduction band (10).
3. A molded case circuit breaker according to claim 1, wherein: the second wiring board (13) is fixedly arranged on the top of the first wiring board (12).
4. A molded case circuit breaker according to claim 1, wherein: the circuit breaker is compatibilized to 1250A.
5. A molded case circuit breaker according to claim 1, wherein: the circuit breaker is small in size and has a phase spacing of 70mm; the 3P outline dimension is as follows: 275.5mm x 210mm x 103mm; the 4P outline dimension is as follows: 275.5mm x 280mm x 103mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262400.4A CN109166774B (en) | 2018-10-27 | 2018-10-27 | Plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262400.4A CN109166774B (en) | 2018-10-27 | 2018-10-27 | Plastic case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109166774A CN109166774A (en) | 2019-01-08 |
| CN109166774B true CN109166774B (en) | 2023-09-05 |
Family
ID=64875981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262400.4A Active CN109166774B (en) | 2018-10-27 | 2018-10-27 | Plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109166774B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020068143A (en) * | 2001-02-20 | 2002-08-27 | 현대중공업 주식회사 | Twin Repulsive Moving Breaking Contact Unit Of Molded Case Circuit Breaker |
| CN1426592A (en) * | 2001-03-27 | 2003-06-25 | 三菱电机株式会社 | Circuit breaker |
| JP2003272504A (en) * | 2002-03-14 | 2003-09-26 | Fuji Electric Co Ltd | Circuit breaker |
| WO2015172605A1 (en) * | 2014-05-16 | 2015-11-19 | 北京人民电器厂有限公司 | Breaker facilitating rapid movement and elongation of arc |
| CN206490040U (en) * | 2016-12-26 | 2017-09-12 | 江苏大全凯帆开关有限公司 | A kind of structure of contact terminal and breaker that are conducive to contact reprimand to open |
-
2018
- 2018-10-27 CN CN201811262400.4A patent/CN109166774B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020068143A (en) * | 2001-02-20 | 2002-08-27 | 현대중공업 주식회사 | Twin Repulsive Moving Breaking Contact Unit Of Molded Case Circuit Breaker |
| CN1426592A (en) * | 2001-03-27 | 2003-06-25 | 三菱电机株式会社 | Circuit breaker |
| JP2003272504A (en) * | 2002-03-14 | 2003-09-26 | Fuji Electric Co Ltd | Circuit breaker |
| WO2015172605A1 (en) * | 2014-05-16 | 2015-11-19 | 北京人民电器厂有限公司 | Breaker facilitating rapid movement and elongation of arc |
| CN105097374A (en) * | 2014-05-16 | 2015-11-25 | 北京人民电器厂有限公司 | Breaker facilitating arc rapid movement and elongation |
| CN206490040U (en) * | 2016-12-26 | 2017-09-12 | 江苏大全凯帆开关有限公司 | A kind of structure of contact terminal and breaker that are conducive to contact reprimand to open |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109166774A (en) | 2019-01-08 |
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