CN219716785U - Tripping structure of miniature circuit breaker - Google Patents
Tripping structure of miniature circuit breaker Download PDFInfo
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- CN219716785U CN219716785U CN202321226616.1U CN202321226616U CN219716785U CN 219716785 U CN219716785 U CN 219716785U CN 202321226616 U CN202321226616 U CN 202321226616U CN 219716785 U CN219716785 U CN 219716785U
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- fixedly connected
- shell
- rod
- clamping
- circuit breaker
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 230000009191 jumping Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of circuit breakers, in particular to a tripping structure of a miniature circuit breaker, which comprises a shell; the surface of the shell is provided with a scribing opening; a control component is arranged in the shell; the control assembly comprises a toggle rod; the bottom of the toggle rod is fixedly connected with a fixed clamping column; the surface of the fixed clamping column is fixedly connected with an extension spring at the bottom of the toggle rod; the bottom end of the extension spring is fixedly connected with the bottom of the inner wall of the shell; limiting plates are fixedly connected to two sides of the toggle rod; the surface of the toggle rod is fixedly connected with a connecting clamping plate; the surface of the limiting plate is rotationally connected with a movable clamping cylinder; the two ends of the movable clamping cylinder are penetrated by movable iron clamping rods; the trip function can be carried out when protecting a circuit through the cooperation of the poking rod and the extension spring, the poking rod is poked by the extension spring in an extension mode, and the upper connector and the lower connector are disconnected by the aid of the jumping connection clamping plate, so that the circuit is disconnected, and the circuit protection device is simple in structure.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a tripping structure of a miniature 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 specified time, and generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a housing and the like, one of the known functions is to cut off and on a load circuit and cut off a fault circuit, prevent an accident from expanding and ensure safe operation, and the release structure is an indispensable part responsible for the function.
At present, two main types of tripping of a circuit breaker are electromagnetic tripping, one type is that the device is connected in series with a protected circuit, when the circuit current is normal, the circuit breaker operates normally, when the load is too high, electromagnetic force generated by electromagnetic force is too large to start stretching a contact, so that the contact and the protected circuit are disconnected to achieve the action of breaking, and the other type is that the circuit current is detected through an electronic element through electronic tripping, and a tripping mechanism is amplified and pushed.
Then, the electromagnetic tripping in the existing tripping structure is relatively complex, and the internal space of the circuit breaker shell is limited, so that the circuit breaker shell needs to be produced very finely in the production process, the electronic tripping cost is too high, and the application range is limited; accordingly, a trip structure of a small-sized circuit breaker is proposed in view of the above-mentioned problems.
Disclosure of Invention
In order to make up for the defects of the prior art, electromagnetic tripping is relatively complex in the existing tripping structure, and the internal space of a circuit breaker shell is limited, so that the problems of extremely fine production, overhigh electronic tripping cost and limited application range in the production process are caused.
The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a tripping structure of a miniature circuit breaker, which comprises a shell; the surface of the shell is provided with a scribing opening; a control component is arranged in the shell;
the control assembly comprises a toggle rod; the bottom of the toggle rod is fixedly connected with a fixed clamping column; the surface of the fixed clamping column is fixedly connected with an extension spring at the bottom of the toggle rod; the bottom end of the extension spring is fixedly connected with the bottom of the inner wall of the shell; limiting plates are fixedly connected to two sides of the toggle rod; the surface of the toggle rod is fixedly connected with a connecting clamping plate; the surface of the limiting plate is rotationally connected with a movable clamping cylinder; the two ends of the movable clamping cylinder are penetrated with movable iron clamping rods.
Preferably, the top of one side of the inner wall of the shell is fixedly connected with an upper connector; the top of one side of the inner wall of the shell is fixedly connected with a lower connector; and connecting holes are formed in the surfaces of the upper connector and the lower connector.
Preferably, the bottom of the upper connector is fixedly connected with a telescopic rod; the bottom end of the telescopic rod is fixedly connected with a connecting convex clamping column; the top of the lower connector is fixedly connected with a concave connecting disc.
Preferably, the surface of the convex clamping column is fixedly connected with the surface of the connecting clamping plate; the surface of the movable iron clamping rod is sleeved with an annular wire; an inductor is arranged in the movable clamping cylinder.
Preferably, a rotating shaft groove is formed in the surface of the scribing port; the surface of the rotating shaft groove is rotationally connected with a supporting shaft; one end of the supporting shaft penetrates through the poking rod and extends to one side of the poking rod; limiting grooves matched with the movable iron clamping rods are formed in two sides of the inner wall of the shell.
Preferably, a safety control button is arranged on the surface of the shell; the top and the bottom of the shell are provided with mounting grooves; clamping grooves are formed in two sides of the shell.
The utility model has the advantages that:
1. according to the utility model, the trip function can be performed when a circuit is protected through the cooperation of the poking rod and the extension spring, the poking rod is pulled and poked by the extension spring, and the upper connector and the lower connector are disconnected by the jumping connection clamping plate, so that the circuit is disconnected, the structure is simple, the problems that the electromagnetic trip is relatively complex in the existing trip structure, the internal space of the circuit breaker shell is limited, the circuit breaker shell needs very fine production in the production process, the electronic trip cost is too high, and the application range is limited are solved;
2. according to the utility model, the circulation of the current of the annular wire is controlled through the inductor, so that the generation of magnetic field force in the movable iron clamping rod is realized, and the movable iron clamping rod moves, so that whether the toggle rod can be matched with the extension spring to toggle, the circuit is better protected, and the use adaptability of the circuit breaker is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first perspective view of the present utility model;
FIG. 2 is a second perspective view of the present utility model;
FIG. 3 is a cross-sectional view of the internal structure of the present utility model;
FIG. 4 is a schematic view of a portion of the structure of the present utility model;
fig. 5 is a cross-sectional view of the housing structure of the present utility model.
In the figure: 1. a housing; 2. scribing; 3. a toggle rod; 4. fixing the clamping column; 5. a tension spring; 6. a limiting plate; 7. the connecting clamping plate; 8. a movable clamping cylinder; 9. moving the iron clamping rod; 10. an upper connector; 11. a lower connector; 12. a connection hole; 13. a telescopic rod; 14. a convex clamping column; 15. a concave connecting disc; 16. an annular wire; 17. an inductor; 18. a rotating shaft groove; 19. a support shaft; 20. a limit groove; 21. an insurance control button; 22. a mounting groove; 23. a clamping groove.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, a trip structure of a miniature circuit breaker includes a housing 1; the surface of the shell 1 is provided with a scribing port 2; a control component is arranged in the shell 1;
the control assembly comprises a toggle rod 3; the bottom of the poking rod 3 is fixedly connected with a fixed clamping column 4; the surface of the fixed clamping column 4 and the bottom of the toggle rod 3 are fixedly connected with an extension spring 5; the bottom end of the extension spring 5 is fixedly connected with the bottom of the inner wall of the shell 1; limiting plates 6 are fixedly connected to two sides of the toggle rod 3; the surface of the toggle rod 3 is fixedly connected with a connecting clamping plate 7; the surface of the limiting plate 6 is rotatably connected with a movable clamping cylinder 8; the two ends of the movable clamping cylinder 8 are penetrated by a movable iron clamping rod 9;
during operation, because electromagnetic tripping is relatively complex in the existing tripping structure, and the internal space of the circuit breaker is limited, the circuit breaker needs to be produced very finely in the production process, the electronic tripping cost is too high, the application range is limited, the circuit is conveniently stirred by the stirring rod 3 through the shell 1 internally mounted circuit and the protection structure, the fixed clamping column 4 is used for limiting the clamping position of the tension spring 5, the limiting plate 6 is fixedly connected with the stirring rod 3 and is connected with the movable clamping cylinder 8 for limiting and is matched and linked with the stirring rod 3 during operation, the movable iron clamping rod 9 moves in the movable clamping cylinder 8, the stirring rod 3 can be stretched and stirred by the tension spring 5 by utilizing the matching of the stirring rod 3 and the tension spring 5 to perform tripping function during circuit protection, and the circuit is disconnected and has a simple structure.
Further, the top of one side of the inner wall of the shell 1 is fixedly connected with the upper connector 10; the top of one side of the inner wall of the shell 1 is fixedly connected with a lower connector 11; the surfaces of the upper connector 10 and the lower connector 11 are provided with connecting holes 12;
in operation, the upper connector 10 and the lower connector 11 are connected to the wires through the connection holes 12.
Further, a telescopic rod 13 is fixedly connected to the bottom of the upper connector 10; the bottom end of the telescopic rod 13 is fixedly connected with a connecting convex clamping column 14; the top of the lower connector 11 is fixedly connected with a concave connecting disc 15;
when in operation, the bottom end of the telescopic rod 13 is fixedly connected with the connecting convex clamping column 14, and the connecting convex clamping column 14 is matched with the concave connecting disc 15 so as to complete a loop.
Further, the surface of the convex clamping column 14 is fixedly connected with the surface of the connecting clamping plate 7; the surface of the movable iron clamping rod 9 is sleeved with an annular wire 16; an inductor 17 is arranged in the movable clamping cylinder 8;
when the electric circuit breaker works, the convex clamping column 14 is fixedly connected with the connecting clamping plate 7, the annular conducting wire 16 is arranged on the surface of the movable iron clamping rod 9, the inductor 17 distributes electricity to the annular conducting wire 16 according to the circuit condition, and when the annular conducting wire 16 is electrified, a magnetic field is generated through electromagnetic generation, so that the movable iron clamping rod 9 starts to move.
Further, a rotating shaft groove 18 is formed in the surface of the scribing port 2; the surface of the rotating shaft groove 18 is rotatably connected with a supporting shaft 19; one end of the supporting shaft 19 penetrates through the poking rod 3 and extends to one side of the poking rod 3; limiting grooves 20 matched with the movable iron clamping rods 9 are formed in two sides of the inner wall of the shell 1;
when the device works, the rotating shaft groove 18 rotates the supporting shaft 19, the supporting shaft 19 supports the toggle rod 3, and the limiting groove 20 is matched with the movable iron clamping rod 9.
Further, a safety control button 21 is installed on the surface of the shell 1; the top and the bottom of the shell 1 are provided with mounting grooves 22; clamping grooves 23 are formed in two sides of the shell 1;
during operation, the safety control button 21 performs safety control, the mounting groove 22 is convenient for fixing the shell with the wall surface, and the clamping groove 23 is used for clamping during mounting.
Working principle: because the electromagnetic tripping is relatively complex in the existing tripping structure and the internal space of the circuit breaker is limited, thus the production process needs to be very fine, the electronic tripping cost is too high, the application range is limited, in order to avoid the problems, the circuit and the protection structure are installed in the shell 1, the notch 2 facilitates the poking of the poking rod 3, the fixed clamping column 4 limits the clamping position of the tension spring 5, the limiting plate 6 is fixedly connected with the poking rod 3 and is connected with the movable clamping cylinder 8 for limiting and is matched and linked with the poking rod 3 in working, the movable iron clamping rod 9 moves in the movable clamping cylinder 8, the poking rod 3 can be matched with the tension spring 5 for tripping function in circuit protection, the circuit can be disconnected by stretching and poking the tension spring 5, the structure is simple, go up connector 10 and lower connector 11 and all connect the wire through connecting hole 12, telescopic link 13 bottom and connection convex draw-in column 14 fixed connection, connect convex draw-in column 14 and concave connection pad 15 cooperation and then accomplish the return circuit, convex draw-in column 14 and connection cardboard 7 fixed connection, remove annular conductor 16 of iron card pole 9 surface lantern ring shape wire 16, inductor 17 distributes according to the circuit condition, when annular conductor 16 is circular, produce the magnetic field through electricity, thereby make removal iron card pole 9 begin to remove, pivot groove 18 rotates back shaft 19, back shaft 19 supports toggle lever 3, spacing groove 20 and removal iron card pole 9 adaptation, insurance control is carried out to insurance control button 21, mounting groove 22 is convenient to fix casing and wall, be used for the joint when draw-in groove 23 installs.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The utility model provides a tripping structure of miniature circuit breaker which characterized in that: comprises a shell (1); a scribing opening (2) is formed in the surface of the shell (1); a control component is arranged in the shell (1);
the control assembly comprises a toggle rod (3); the bottom of the poking rod (3) is fixedly connected with a fixed clamping column (4); the surface of the fixed clamping column (4) is fixedly connected with an extension spring (5) at the bottom of the poking rod (3); the bottom end of the extension spring (5) is fixedly connected with the bottom of the inner wall of the shell (1); limiting plates (6) are fixedly connected to two sides of the toggle rod (3); the surface of the poking rod (3) is fixedly connected with a connecting clamping plate (7); the surface of the limiting plate (6) is rotationally connected with a movable clamping cylinder (8); the two ends of the movable clamping cylinder (8) are penetrated by movable iron clamping rods (9).
2. The trip structure of a miniature circuit breaker of claim 1, wherein: the top of one side of the inner wall of the shell (1) is fixedly connected with an upper connector (10); the top of one side of the inner wall of the shell (1) is fixedly connected with a lower connector (11); the surfaces of the upper connector (10) and the lower connector (11) are provided with connecting holes (12).
3. The trip structure of a miniature circuit breaker of claim 2, wherein: the bottom of the upper connector (10) is fixedly connected with a telescopic rod (13); the bottom end of the telescopic rod (13) is fixedly connected with a connecting convex clamping column (14); the top of the lower connector (11) is fixedly connected with a concave connecting disc (15).
4. A miniature circuit breaker trip structure according to claim 3 wherein: the surface of the convex clamping column (14) is fixedly connected with the surface of the connecting clamping plate (7); an annular wire (16) is sleeved on the surface of the movable iron clamping rod (9); an inductor (17) is arranged in the movable clamping cylinder (8).
5. The trip structure of a miniature circuit breaker of claim 4, wherein: a rotating shaft groove (18) is formed in the surface of the scribing opening (2); the surface of the rotating shaft groove (18) is rotatably connected with a supporting shaft (19); one end of the supporting shaft (19) penetrates through the poking rod (3) and extends to one side of the poking rod (3); limiting grooves (20) matched with the movable iron clamping rods (9) are formed in two sides of the inner wall of the shell (1).
6. The trip structure of a miniature circuit breaker of claim 5, wherein: the surface of the shell (1) is provided with a safety control button (21); the top and the bottom of the shell (1) are provided with mounting grooves (22); clamping grooves (23) are formed in two sides of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226616.1U CN219716785U (en) | 2023-05-18 | 2023-05-18 | Tripping structure of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226616.1U CN219716785U (en) | 2023-05-18 | 2023-05-18 | Tripping structure of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716785U true CN219716785U (en) | 2023-09-19 |
Family
ID=88001123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321226616.1U Active CN219716785U (en) | 2023-05-18 | 2023-05-18 | Tripping structure of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716785U (en) |
-
2023
- 2023-05-18 CN CN202321226616.1U patent/CN219716785U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |