CN220306180U - Small-sized circuit breaker - Google Patents
Small-sized circuit breaker Download PDFInfo
- Publication number
- CN220306180U CN220306180U CN202321151494.4U CN202321151494U CN220306180U CN 220306180 U CN220306180 U CN 220306180U CN 202321151494 U CN202321151494 U CN 202321151494U CN 220306180 U CN220306180 U CN 220306180U
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- CN
- China
- Prior art keywords
- circuit breaker
- breaker body
- guide rail
- shell
- plate
- Prior art date
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- 238000009434 installation Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 206010063659 Aversion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Abstract
The utility model relates to the technical field of electric switches and discloses a miniature circuit breaker which comprises a shell and a circuit breaker body, wherein a guide rail, an abutting plate and a limiting block are arranged in the shell, the guide rail is fixedly connected with the shell, the abutting plate is in sliding connection with the guide rail, the limiting block is movably connected with the abutting plate, and the guide rail is provided with a limiting groove matched with the limiting block; the abutting plate is abutted with the breaker body, and the limiting block is clamped into the limiting groove so as to limit and assemble the breaker body in the shell. The miniature circuit breaker can ensure safe and stable installation, is convenient to assemble and disassemble, and reduces cost and increases efficiency for production ends.
Description
Technical Field
The utility model relates to the technical field of electric switches, in particular to a miniature circuit breaker.
Background
A circuit breaker is a switching device used for overload and short-circuit protection of lighting, distribution lines and equipment. Miniature circuit breakers typically require a housing to protect the circuit breaker body and to prevent a user from accidentally touching the circuit breaker body to get an electric shock.
However, at present, the breaker body is often installed in the shell in a screwing mode, if the screw is screwed too tightly, the breaker body is possibly damaged, so that the breaker body cannot normally operate, and the personal safety of a user is endangered; if the screw is too loose, the breaker body is easily separated from the shell, and the personal safety of a user is also endangered.
In order to ensure stable installation, a plurality of groups of screws are usually required to be screwed in for the installation of the circuit breaker body and the shell, and the installation is complicated; and, the casing that corresponds needs to set up multiunit mounting hole in order to install the screw, and the shaping is complicated, and is with high costs.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the miniature circuit breaker, which can ensure the safe and stable installation, is convenient to assemble and disassemble and has the effect of reducing the cost and enhancing the efficiency for the production end.
In order to solve the technical problems, the utility model provides a miniature circuit breaker which comprises a shell and a circuit breaker body, wherein the circuit breaker body is arranged in the shell, a guide rail, an abutting plate and a limiting block are arranged in the shell, the guide rail is fixedly connected with the shell, the abutting plate is in sliding connection with the guide rail, the limiting block is movably connected with the abutting plate, and the guide rail is provided with a limiting groove matched with the limiting block;
the abutting plate is abutted with the breaker body, and the limiting block is clamped into the limiting groove so as to limit and assemble the breaker body in the shell.
As an improvement of the scheme, a first opening is formed in the surface, opposite to the limiting groove, of the abutting plate, the first opening extends to the direction away from the limiting groove to form a mounting channel, and the limiting block is arranged in the mounting channel in a sliding mode.
As an improvement of the scheme, the abutting plate is provided with a limiting hole communicated with the mounting channel, the limiting hole extends along the length direction of the mounting channel, the limiting block is provided with a driving arm extending out of the limiting hole, and the driving arm moves along the limiting hole so that the limiting block is separated from or clamped into the limiting groove.
As an improvement of the scheme, the limit grooves are arranged in an array along the extending direction of the guide rail.
As an improvement of the scheme, the abutting plate is provided with a clamping hook protruding to one side of the circuit breaker body, the circuit breaker body is provided with a clamping groove matched with the clamping hook, and the clamping hook stretches into the clamping groove.
As an improvement of the scheme, the abutting plate comprises a first abutting plate and a second abutting plate which are in cross connection, the first abutting plate is in sliding connection with the guide rail and is in movable connection with the limiting block, and the clamping hook is arranged on the second abutting plate.
As an improvement of the scheme, the first retaining plate and the second retaining plate are respectively provided with a buffer layer, and the buffer layers are abutted with the breaker body.
As an improvement of the scheme, the guide rails are arranged in at least two groups in a crossing way, and abutting plates on each group of guide rails are arranged in pairs and are oppositely arranged on two sides of the breaker body.
As an improvement of the scheme, the device further comprises a cover plate, wherein the cover plate is detachably connected with the shell.
As an improvement of the above scheme, the breaker body is provided with an operating lever, the housing is provided with a second opening, and the operating lever extends out of the housing through the second opening.
The implementation of the utility model has the following beneficial effects:
the utility model discloses a miniature circuit breaker, which is characterized in that a guide rail is fixedly arranged in a shell, an abutting plate which is in sliding connection with the guide rail is arranged on the guide rail, a limiting block which is in movable connection with the abutting plate is arranged on the guide rail, a limiting groove which is matched with the limiting block is arranged on the guide rail, and when the abutting plate slides to abut against a circuit breaker body, and the limiting block which is in movable connection with the abutting plate moves and is clamped into the limiting groove, the circuit breaker body is limited and assembled in the shell;
the limiting block is stored in the mounting channel of the abutting plate, so that the limiting block is released from the abutting plate, and the abutting plate is far away from the breaker body, so that the breaker body can be detached from the shell;
the assembly and the disassembly between the breaker body and the shell are convenient and quick, and the abutting plate is clamped into the limiting block in the limiting groove of the guide rail, so that the breaker body is not easy to displace after being clamped by the abutting plate, and the breaker body is stably assembled and has high safety;
the shell no longer needs to be provided with a plurality of groups of mounting holes for mounting screws, so that the shell forming difficulty is reduced, and the cost is lowered.
Drawings
FIG. 1 is a schematic diagram of a miniature circuit breaker according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic view of an assembled structure of the miniature circuit breaker and the cover plate of fig. 1.
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.
As shown in fig. 1 and 2, the utility model provides an embodiment of a miniature circuit breaker, which comprises a shell 1 and a circuit breaker body 2, wherein the circuit breaker body 2 is installed in the shell 1, an abutting plate 11, a guide rail 12 and a limiting block 13 are arranged in the shell 1, the guide rail 12 is fixedly connected with the shell 1, the abutting plate 11 is in sliding connection with the guide rail 12, the limiting block 13 is movably connected with the abutting plate 11, and the guide rail 12 is provided with a limiting groove 121 matched with the limiting block 13; the abutting plate 11 abuts against the breaker body 2, and the limiting block 13 is clamped into the limiting groove 121, so that the breaker body 2 is limited and assembled in the housing 1.
In the embodiment, a guide rail 12 is fixedly arranged in a shell 1, an abutting plate 11 which is in sliding connection with the guide rail 12 is arranged on the guide rail 12, meanwhile, a limiting block 13 which is in movable connection with the abutting plate 11 is arranged on the guide rail 12, a limiting groove 121 which is matched with the limiting block 13 is arranged on the guide rail 12, and when the abutting plate 11 slides to abut against the breaker body 2, and the limiting block 13 which is in movable connection with the abutting plate 11 moves and is clamped into the limiting groove 121, the breaker body 2 is limited and assembled in the shell 1; the limiting block 13 is moved, so that the moving limiting block 13 is separated from the limiting groove 121, the limit of the abutting plate 11 is released, and the abutting plate 11 is far away from the breaker body 2, so that the breaker body 2 can be detached from the shell 1; the circuit breaker body 2 and the shell 1 are assembled and disassembled conveniently and quickly, and the limiting blocks 13 clamped into the limiting grooves 121 of the guide rails 12 enable the abutting plates 11 to clamp the circuit breaker body 2 and not to easily displace, so that the circuit breaker body 2 is stably assembled and high in safety; and the shell 1 no longer needs to be provided with a plurality of groups of mounting holes for mounting screws, so that the molding difficulty of the shell 1 is reduced, and the cost is reduced.
The guide rails 12 in this embodiment are arranged in at least two groups in a crossing manner, and the abutting plates 11 on each group of guide rails 12 are arranged in pairs and are oppositely arranged on two sides of the breaker body 2, so that the periphery of the breaker body 2 is abutted against the abutting plates 11, and the installation is more stable.
The abutment plate 11 comprises in particular a first abutment plate 111 and a second abutment plate 112, which are cross-connected. The first retaining plate 111 is slidably connected with the guide rail 12 and movably connected with the limiting block 13, the first retaining plate 111 abuts against the side wall of the breaker body 2, and the second retaining plate 112 abuts against the end face of the breaker body 2. The breaker body 2 is clamped through the matching of the first retaining plate 111 and the second retaining plate 112, so that the installation is more stable, the breaker body 2 is not easy to separate, and the safety is improved.
Specifically, a surface of the first retaining plate 111 opposite to the limiting groove 121 is provided with a first opening, the first opening extends away from the limiting groove 121 to form a mounting channel 113 adapted to the limiting block 13, and the limiting block 13 is slidably disposed in the mounting channel 113. When the abutting plate 11 moves along the guide rail 12, the limiting block 13 can be accommodated in the mounting channel 113, and when the abutting plate 11 reaches a proper position, the limiting block 13 can be clamped into the limiting groove 121 from the mounting channel 113 so as to prevent the abutting plate 11 from moving.
Preferably, in this embodiment, a limiting hole 114 is formed in the abutting plate 11 and is communicated with the mounting channel 113, the limiting hole 114 is disposed to extend along the length direction of the mounting channel 113, and the limiting block 13 is provided with a driving arm extending out through the limiting hole 114, so as to facilitate driving the limiting block 13 to move. The driving arm is driven to move along the limiting hole 114, so as to drive the limiting block 13 to move along the mounting channel 113, so that the limiting block 13 is separated from or clamped into the limiting groove 121.
More preferably, the limiting grooves 121 are arranged in an array along the extending direction of the guide rail 12, and the abutting plate 11 is moved to the upper parts of the limiting grooves 121 at different positions to abut against the breaker bodies 2 with different sizes, so that the utility model is applicable to the breaker bodies 2 with different specifications.
Preferably, the second retaining plate 112 is provided with a hook 115 protruding to one side of the breaker body 2, the breaker body 2 is provided with a slot 21 adapted to the hook 115, and the hook 115 extends into the slot 21 and abuts against the slot 21 to buckle the breaker body 2, so as to further prevent the breaker body 2 from being separated.
It should be noted that, if screw connection is adopted for fixation, once the long-time use, the phenomenon of screw thread grinding appears easily, easily leads to the breaker body to break away from the aversion, is unfavorable for safe handling. In addition, because screw connection is rigid connection, can't cushion pressure or pulling force to the circuit breaker body, small-size circuit breaker is in case received external force impact, very easily causes the circuit breaker body to damage, influences product security and life. And when the breaker body is damaged, the user has to replace the whole miniature breaker together, which not only wastes resources but also increases the user cost.
If the mounting manner of the abutting plate 11 and the guide rail 12 is adopted, the abutting plate 11 and the guide rail 12 can still exert the original functions even if the long-time use is performed, and the service life of the product is greatly prolonged.
In this embodiment, the buffer layer 116 is preferably disposed on the first retaining plate 111 and the second retaining plate 112, and the buffer layer 116 abuts against the breaker body 2, so as to weaken the impact of external force on the breaker body 2, so that the breaker body 2 is not easy to damage, and the service life is prolonged.
Moreover, the abutting plate 11 and the guide rail 12 can be made of corrosion-resistant materials such as stainless steel, alloy steel and the like, so that the service life is further prolonged.
In addition, even if the breaker body 2 is damaged, other breaker bodies 2 can be replaced in the shell 1 conveniently, so that the cost is reduced.
In addition, in connection with fig. 3, in order to further ensure that the present utility model can be used for a long period of time, the miniature circuit breaker of the present embodiment further includes a cover plate 3, and the cover plate 3 seals the housing 1 to prevent moisture or dust from entering the housing 1, thereby affecting the normal operation of the circuit breaker body 2. And, the cover plate 3 is detachably connected with the housing 1, so as to facilitate the assembly and disassembly of the breaker body 2. In addition, the housing 1 is provided with a clamping plate 14, and the cover plate 3 slides in along the clamping plate 14 and abuts against the clamping plate, so that the cover plate 3 is mounted on the housing 1. Preferably, the clamping plate 14 is detachably connected with the housing 1, so that when the cover plate 3 is installed, the clamping plate 14 can be detached, so that the cover plate 3 slides along the clamping plate 14 and abuts against the clamping plate, and then the clamping plate 14 is installed back on the housing 1, so that the installation is stable.
The breaker body 2 is provided with an operation lever 22, the housing 1 is further provided with a second opening 15, and the operation lever 22 extends out of the housing 1 through the second opening 15, so that a user can manually open and close the switch.
The working principle of the utility model is as follows:
according to the utility model, the abutting plate 11 and the guide rail 12 are arranged in the shell 1, and the abutting plate 11 moves along the guide rail 12, so that the abutting plate 11 abuts against or is separated from the breaker body 2, the installation and the disassembly of the breaker body 2 are realized, the installation structure is safe and reliable, and the service life is long. Wherein, the activity is equipped with stopper 13 on the butt plate 11, be equipped with spacing groove 121 in the guide rail 12, stopper 13 card is gone into in the spacing groove 121 makes difficult emergence displacement behind the butt plate 11 cliied circuit breaker body 2, and circuit breaker body 2 can not break away from with butt plate 11, and circuit breaker body 2 assembly is firm, and the security is high.
During installation, the abutting plate 11 moves towards and abuts against the breaker body 2 to clamp the breaker body 2, and then the limiting block 13 is clamped into the limiting groove 121 to limit the abutting plate 11 to move; when the circuit breaker is disassembled, the limiting block 13 is stored in the mounting channel 113 of the abutting plate 11, limiting of the abutting plate 11 is released, and the abutting plate 11 is far away from the circuit breaker body 2, so that a worker can take out the circuit breaker body 2 conveniently.
The above disclosure is only a preferred embodiment of the present utility model, and it is needless to say that the scope of the utility model is not limited thereto, and therefore, the equivalent changes according to the claims of the present utility model still fall within the scope of the present utility model.
Claims (10)
1. The miniature circuit breaker comprises a shell and a circuit breaker body, wherein the circuit breaker body is arranged in the shell, and the miniature circuit breaker is characterized in that a guide rail, an abutting plate and a limiting block are arranged in the shell, the guide rail is fixedly connected with the shell, the abutting plate is in sliding connection with the guide rail, the limiting block is movably connected with the abutting plate, and the guide rail is provided with a limiting groove matched with the limiting block;
the abutting plate is abutted with the breaker body, and the limiting block is clamped into the limiting groove so as to limit and assemble the breaker body in the shell.
2. The miniature circuit breaker of claim 1, wherein a surface of the abutment plate opposite the limit slot is provided with a first opening, the first opening extending away from the limit slot to form a mounting channel, the limit block being slidably disposed within the mounting channel.
3. The miniature circuit breaker of claim 2, wherein the abutment plate is provided with a limit hole communicated with the mounting channel, the limit hole extends along the length direction of the mounting channel, the limit block is provided with a driving arm extending out through the limit hole, and the driving arm moves along the limit hole so as to enable the limit block to be separated from or clamped into the limit groove.
4. A miniature circuit breaker as claimed in claim 1 or claim 3 wherein said limit slots are arranged in an array along the extension of said rail.
5. The miniature circuit breaker of claim 1, wherein said abutment plate is provided with a hook protruding toward one side of said circuit breaker body, said circuit breaker body is provided with a slot adapted to said hook, and said hook extends into said slot.
6. The miniature circuit breaker of claim 5, wherein said abutment plate comprises a first abutment plate and a second abutment plate in cross-connection, said first abutment plate being slidably connected to said guide rail and movably connected to said stopper, said trip being disposed on said second abutment plate.
7. The miniature circuit breaker of claim 6, wherein the first and second retaining plates are each provided with a buffer layer, the buffer layer abutting the circuit breaker body.
8. The miniature circuit breaker of claim 1, wherein said rails are arranged in at least two sets intersecting each other, said abutment plates on each set of said rails being arranged in pairs and disposed opposite each other on either side of said circuit breaker body.
9. The miniature circuit breaker of claim 1, further comprising a cover plate detachably connected to the housing.
10. The miniature circuit breaker of claim 1, wherein the circuit breaker body is provided with an operating lever, and the housing is provided with a second opening through which the operating lever extends out of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151494.4U CN220306180U (en) | 2023-05-12 | 2023-05-12 | Small-sized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151494.4U CN220306180U (en) | 2023-05-12 | 2023-05-12 | Small-sized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220306180U true CN220306180U (en) | 2024-01-05 |
Family
ID=89344897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321151494.4U Active CN220306180U (en) | 2023-05-12 | 2023-05-12 | Small-sized circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220306180U (en) |
-
2023
- 2023-05-12 CN CN202321151494.4U patent/CN220306180U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |