CN220138219U - Layout structure of circuit breaker - Google Patents
Layout structure of circuit breaker Download PDFInfo
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- CN220138219U CN220138219U CN202321741830.0U CN202321741830U CN220138219U CN 220138219 U CN220138219 U CN 220138219U CN 202321741830 U CN202321741830 U CN 202321741830U CN 220138219 U CN220138219 U CN 220138219U
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a layout structure of a circuit breaker, wherein a shell component comprises an upper cover, a base and a bottom cover which are sequentially connected, the base is integrally formed, a middle partition board which is transversely arranged is arranged in the base, an upper-layer operation space is formed between the middle partition board and the upper cover, a lower-layer on-off space is formed between the middle partition board and the bottom cover, a release, a locking mechanism and an operation mechanism are arranged in the upper-layer operation space, and an arc extinguishing component is arranged in the lower-layer on-off space; the middle partition plate is provided with a first opening and a second opening, the middle partition plate is provided with a moving contact limiting plate and a fixed contact limiting plate in the lower-layer on-off space, the moving contact penetrates through the first opening and stretches into the lower-layer on-off space, the fixed contact is attached to the fixed contact limiting plate, and the moving contact can rotate to have a closing position where the moving contact is attached to the fixed contact and a separating position where the moving contact is abutted to the moving contact limiting plate. The utility model further optimizes the layout structure of the circuit breaker, and the upper-layer operation space and the lower-layer on-off space are clear in structure distribution and good in separation effect.
Description
Technical Field
The utility model particularly relates to a layout structure of a circuit breaker.
Background
Patent CN 202010663860.9 discloses a circuit breaker, and in particular relates to an improvement of the layout structure of the circuit breaker, by arranging the contact system approximately in the central position, the tripper, the latch mechanism, the operating mechanism and the arc extinguishing system are arranged on the periphery approximately in a manner of surrounding the contact system, the length space of the circuit breaker shell is fully utilized, the arrangement quantity of the arc extinguishing bars is maximized, and the arc extinguishing capability is stronger. The patent still has the following disadvantages: 1. the shell of the patent is formed by combining left and right two bases, the matching structure of internal parts is complex, the assembly is complicated, and the electrical isolation effect between spaces is poor; 2. the movable contact of the patent has small movable space, poor transmission efficiency and opening and closing actions.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings of the prior art and provides a gas-generating insulating cover, wherein one side of a static contact close to a first opening is provided with a second gas-generating insulating cover which is at least partially positioned in a second opening.
The operating mechanism comprises a rotating shaft, the moving contact is fixed on the rotating shaft, in the process that the moving contact turns from a closing position to a separating brake position, the outer wall of the rotating shaft is attached to the middle partition plate to rotate, and the outer wall of the rotating shaft is attached to the second gas production insulating cover or is in clearance fit with the second gas production insulating cover.
The movable contact wiring terminal is connected with the movable contact through a thermal protection double-gold sheet and a soft connecting wire which are connected in sequence.
The movable contact mounting groove is formed in the rotating shaft, one end of the movable contact extends into the movable contact mounting groove and is fixedly connected with the central shaft of the rotating shaft, an opening for the soft connecting wire to extend into is formed in one side, close to the thermal protection double-gold sheet, of the movable contact mounting groove, and the soft connecting wire extends into the movable contact mounting groove and is fixedly connected with the movable contact.
The operating mechanism comprises an operating handle, an opening for the operating handle to pass through is formed in the middle of the upper cover, the operating handle stretches out of the upper cover for manual opening and closing operation, and the opening steering direction of the operating handle is a direction away from the fixed contact.
The beneficial effects of the utility model are as follows: the utility model further optimizes the layout structure of the circuit breaker, and the upper-layer operation space and the lower-layer on-off space are clear in structure distribution and good in separation effect.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a cross-sectional view of a housing assembly according to one embodiment of the present utility model;
FIG. 2 is a schematic view of a base structure according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a base in one embodiment of the utility model;
FIG. 4 is a cross-sectional view of the mating structures of the operating handle, housing assembly, shaft, moving contact, stationary contact, etc. in an embodiment of the present utility model;
FIG. 5 is an exploded view of a mating structure of a stationary contact and a first terminal in an embodiment of the present utility model;
in the figure, an upper cover-1, a base-2, an intermediate baffle plate-201, a fixed contact wiring terminal mounting seat-2011, a moving contact wiring terminal mounting seat-2012, a first opening-202, a second opening-203, a moving contact limiting plate-204, a fixed contact limiting plate-205, a bottom cover-3, a moving contact-4, a moving contact-401, a first gas-generating insulating cover-402, a fixed contact-5, a fixed contact-501, a fixed contact wiring terminal-502, a second gas-generating insulating cover-503, a moving contact wiring terminal-6, a rotating shaft-7, a moving contact mounting groove-701, a thermal protection double-metal sheet-8 and an operating handle-9;
an upper layer operation space-A; the lower layer is connected with the space-B.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.
A layout structure of a circuit breaker comprises a shell component, a release, a locking mechanism, an operating mechanism, a contact component, a wiring terminal component and an arc extinguishing component;
as shown in fig. 1, the housing assembly comprises an upper cover 1, a base 2 and a bottom cover 3 which are sequentially connected, as shown in fig. 2, the base 2 is integrally formed, a middle partition plate 201 which is transversely arranged is arranged in the base 2, an upper-layer operation space A is formed between the middle partition plate 201 and the upper cover 1, a lower-layer on-off space B is formed between the middle partition plate 201 and the bottom cover 3, the tripper, the locking mechanism and the operation mechanism are arranged in the upper-layer operation space A, and the arc extinguishing assembly is arranged in the lower-layer on-off space B;
the contact assembly comprises a moving contact 4 and a fixed contact 5, a first opening 202 which is matched with the moving contact 4 in shape and a second opening 203 which is matched with the fixed contact 5 in shape are formed in a middle partition plate 201, the first opening 202 and the second opening 203 are communicated, a moving contact limiting plate 204 and a fixed contact limiting plate 205 are arranged in a lower-layer on-off space B of the middle partition plate 201, the moving contact 4 is connected with an operating mechanism and penetrates through the first opening 202 to stretch into the lower-layer on-off space B and is provided with a moving contact 401 in the lower-layer on-off space B, the fixed contact 5 penetrates through the second opening 203 to stretch into the lower-layer on-off space B to be attached to the fixed contact limiting plate 205, and a fixed contact 501 is arranged in the lower-layer on-off space B, and the moving contact 4 rotatably has a closing position where the moving contact 401 is attached to the fixed contact 501 and a separating position where the moving contact 4 is abutted to the moving contact limiting plate 204.
The upper-layer operation space A and the lower-layer on-off space B are separated by the middle partition plate 201, and the first opening 202 and the second opening 203 are arranged to respectively enable the moving contact 4 and the fixed contact 5 to extend into the lower-layer on-off space B, so that the risk that an electric arc enters the upper-layer operation space A can be reduced, and the influence on parts in the upper-layer operation space A can be reduced.
As shown in fig. 3, the surfaces of the moving contact limiting plate 204 and the fixed contact limiting plate 205 form splayed distribution with an angle of 75-145 degrees. Sufficient movable space of the movable contact 4 is provided between the movable contact limiting plate 204 and the fixed contact limiting plate 205.
As shown in fig. 4, the terminal assembly includes a fixed contact terminal 502 and a movable contact terminal 6, the middle partition 201 is formed with a fixed contact terminal mounting seat 2011 and a movable contact terminal mounting seat 2012 on two sides of the upper operation space a, and the fixed contact terminal 502 and the movable contact terminal 6 are fixed on the fixed contact terminal mounting seat 2011 and the movable contact terminal mounting seat 2012, respectively;
the fixed contact terminal 502 and the fixed contact 5 are integrally formed, and the second opening 203 is disposed near the fixed contact terminal mounting base 2011.
As shown in fig. 4, a first gas-generating insulating cover 402 at least partially located in the first opening 202 is disposed on a side, close to the fixed contact 5, of the moving contact 4, and as shown in fig. 5, a second gas-generating insulating cover 503 at least partially located in the second opening 203 is disposed on a side, close to the first opening 202, of the fixed contact 5. In the switching-off process, the first gas-generating insulating cover 402 and the second gas-generating insulating cover 503 generate gas to form an arc extinguishing device for pushing the arc between the movable contact 401 and the stationary contact 501 to the lower side, so that the arc extinguishing effect is improved, and the risk that the arc enters the upper operating space A is reduced.
As shown in fig. 4, the operating mechanism includes a rotating shaft 7, the moving contact 4 is fixed on the rotating shaft 7, in the process that the moving contact 4 turns from the closing position to the opening position, the outer wall of the rotating shaft 7 is attached to the middle partition 201 to rotate, and the outer wall of the rotating shaft 7 is attached to the second gas-generating insulating cover 503 or is in clearance fit with the second gas-generating insulating cover 503. This arrangement improves safety.
The movable contact wiring terminal 6 and the movable contact 4 are connected with the soft connecting wire through the thermal protection double-gold sheet 8 which is connected in sequence.
As shown in fig. 4, a moving contact mounting groove 701 is formed in the rotating shaft 7, one end of the moving contact 4 extends into the moving contact mounting groove 701 and is fixedly connected with the central shaft of the rotating shaft 7, an opening for extending a soft connecting wire is formed on one side of the moving contact mounting groove 701, which is close to the thermal protection double-metal sheet 8, and the soft connecting wire extends into the moving contact mounting groove 701 and is fixedly connected with the moving contact 4. The radius of the rotating shaft can be set to be relatively large, the length of the moving contact, which is raised relative to the rotating shaft, can be set to be smaller, the ratio of the force arm of the rotating shaft 7 to the force arm of the moving contact 4, namely the transmission efficiency, is obviously improved, and the purpose of saving labor is achieved.
The operating mechanism comprises an operating handle 9, an opening for the operating handle 9 to pass through is formed in the middle of the upper cover 1, the operating handle 9 stretches out of the upper cover 1 for manual opening and closing operation, and the opening steering direction of the operating handle 9 is a direction far away from the fixed contact 5.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (8)
1. A layout structure of a circuit breaker comprises a shell component, a release, a locking mechanism, an operating mechanism, a contact component, a wiring terminal component and an arc extinguishing component;
the method is characterized in that: the shell assembly comprises an upper cover (1), a base (2) and a bottom cover (3) which are sequentially connected, the base (2) is integrally formed, a middle partition plate (201) which is transversely arranged is arranged in the base (2), an upper-layer operation space (A) is formed between the middle partition plate (201) and the upper cover (1), a lower-layer on-off space (B) is formed between the middle partition plate (201) and the bottom cover (3), and the tripper, the locking mechanism and the operation mechanism are arranged in the upper-layer operation space (A), and the arc extinguishing assembly is arranged in the lower-layer on-off space (B);
the contact assembly comprises a moving contact (4) and a fixed contact (5), a first opening (202) which is matched with the shape of the moving contact (4) and a second opening (203) which is matched with the shape of the fixed contact (5) are formed in a middle partition plate (201), the first opening (202) and the second opening (203) are communicated, a moving contact limiting plate (204) and a fixed contact limiting plate (205) are arranged in a lower-layer on-off space (B) in the middle partition plate (201), the moving contact (4) is connected with an operating mechanism and penetrates through the first opening (202) to extend into the lower-layer on-off space (B) and is provided with a moving contact (401) in the lower-layer on-off space (B), the fixed contact (5) penetrates through the second opening (203) to extend into the lower-layer on-off space (B) to be attached to the fixed contact limiting plate (205) and is provided with a fixed contact (501) in the lower-layer on-off space (B), and the moving contact (4) can rotate to have a closing position where the moving contact (401) is attached to the moving contact (4) and a moving contact (204) is abutted to the moving position.
2. The circuit breaker arrangement of claim 1, wherein: the surfaces of the moving contact limiting plate (204) and the fixed contact limiting plate (205) form splayed distribution with an angle of 75-145 degrees.
3. The layout structure of a circuit breaker according to claim 1 or 2, characterized in that: the wiring terminal assembly comprises a fixed contact wiring terminal (502) and a movable contact wiring terminal (6), wherein a fixed contact wiring terminal mounting seat (2011) and a movable contact wiring terminal mounting seat (2012) are respectively formed on two sides of an upper-layer operation space (A) of the middle partition plate (201), and the fixed contact wiring terminal (502) and the movable contact wiring terminal (6) are respectively fixed on the fixed contact wiring terminal mounting seat (2011) and the movable contact wiring terminal mounting seat (2012);
the fixed contact wiring terminal (502) and the fixed contact (5) are integrally formed, and the second opening (203) is close to the fixed contact wiring terminal mounting seat (2011).
4. A layout structure of a circuit breaker according to claim 3, wherein: the movable contact (4) is provided with a first gas production insulating cover (402) which is at least partially positioned in the first opening (202) at the side close to the fixed contact (5), and a second gas production insulating cover (503) which is at least partially positioned in the second opening (203) at the side close to the first opening (202) at the fixed contact (5).
5. The circuit breaker arrangement of claim 4, wherein: the operating mechanism comprises a rotating shaft (7), the moving contact (4) is fixed on the rotating shaft (7), in the process that the moving contact (4) turns to a separating brake position from a closing position, the outer wall of the rotating shaft (7) is attached to an intermediate baffle plate (201) to rotate, and the outer wall of the rotating shaft (7) is attached to a second gas production insulating cover (503) or is in clearance fit with the second gas production insulating cover (503).
6. The circuit breaker arrangement of claim 5, wherein: the movable contact wiring terminal (6) and the movable contact (4) are connected with the soft connecting wires through the thermal protection double-metal sheet (8) which is connected in sequence.
7. The circuit breaker arrangement of claim 6, wherein: a moving contact mounting groove (701) is formed in the rotating shaft (7), one end of the moving contact (4) extends into the moving contact mounting groove (701) and is fixedly connected with the central shaft of the rotating shaft (7), an opening for a soft connecting wire to extend into is formed in one side, close to the thermal protection double-metal sheet (8), of the moving contact mounting groove (701), and the soft connecting wire extends into the moving contact mounting groove (701) and is fixedly connected with the moving contact (4).
8. The circuit breaker arrangement of claim 1, wherein: the operating mechanism comprises an operating handle (9), an opening for the operating handle (9) to pass through is formed in the middle of the upper cover (1), the operating handle (9) stretches out of the upper cover (1) for manual opening and closing operation, and the opening steering direction of the operating handle (9) is a direction far away from the fixed contact (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321741830.0U CN220138219U (en) | 2023-07-04 | 2023-07-04 | Layout structure of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321741830.0U CN220138219U (en) | 2023-07-04 | 2023-07-04 | Layout structure of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138219U true CN220138219U (en) | 2023-12-05 |
Family
ID=88957942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321741830.0U Active CN220138219U (en) | 2023-07-04 | 2023-07-04 | Layout structure of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138219U (en) |
-
2023
- 2023-07-04 CN CN202321741830.0U patent/CN220138219U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |