CN219800759U - Breaking mechanism of plastic case breaker - Google Patents
Breaking mechanism of plastic case breaker Download PDFInfo
- Publication number
- CN219800759U CN219800759U CN202321094739.4U CN202321094739U CN219800759U CN 219800759 U CN219800759 U CN 219800759U CN 202321094739 U CN202321094739 U CN 202321094739U CN 219800759 U CN219800759 U CN 219800759U
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- CN
- China
- Prior art keywords
- breaking mechanism
- circuit breaker
- case circuit
- plate
- shell
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- 238000007664 blowing Methods 0.000 claims abstract description 32
- 230000003068 static effect Effects 0.000 claims description 10
- 238000004880 explosion Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Breaking mechanism of plastic case breaker. Mainly solves the problems that the air blowing structure of the prior circuit breaker is connected with the arc-extinguishing grid plate in a partition plate mode, and the whole disassembly and assembly are more troublesome. The method is characterized in that: the magnetic blowing assembly is detachably connected with the shell and comprises a detachably connected magnetic conduction plate (51) and a blowing cover (52), and the magnetic conduction plate and the blowing cover are oppositely arranged in front of the inlet. The utility model provides a breaking mechanism of a plastic shell breaker, which is characterized in that a magnetic conduction plate and an air blowing cover are mutually assembled, and the two assembled components are assembled in a shell, so that the breaking mechanism is convenient to assemble and disassemble.
Description
Technical Field
The utility model relates to the field of molded case circuit breakers, in particular to a breaking mechanism of a molded case circuit breaker.
Background
A circuit breaker is a switching device capable of closing, carrying and breaking a current under normal circuit conditions and capable of closing, carrying and breaking a current under abnormal circuit conditions for a prescribed time. The breaking mechanism is a core component for realizing segmentation of the circuit breaker.
As shown in chinese patent publication No. CN212461576U, most of the current air blowing structures of circuit breakers are connected with arc extinguishing bars by using partition plates, and the whole assembly and disassembly are troublesome.
Disclosure of Invention
In order to overcome the defects of the background technology, the utility model provides a breaking mechanism of a molded case circuit breaker, which mainly solves the problems that most of air blowing structures of the existing circuit breaker are connected with arc extinguishing grid plates by adopting a partition plate mode, and the whole disassembly and assembly are relatively troublesome.
The technical scheme adopted by the utility model is as follows:
the breaking mechanism of the plastic case circuit breaker comprises a shell, wherein a fixed contact, an arc extinguish chamber and a movable contact which can be rotatably arranged are arranged in the shell, the movable contact is matched with the fixed contact, the arc extinguish chamber comprises an inlet, a magnetic blowing assembly which is detachably connected with the shell is further included, the magnetic blowing assembly comprises a magnetic conduction plate and a gas blowing cover which are detachably connected, and the magnetic conduction plate and the gas blowing cover are relatively arranged in front of the inlet.
The magnetic conduction plate comprises a side plate, the air blowing cover comprises a jack, and the side plate is in plug-in fit with the jack.
The magnetic conduction plate comprises a side plate, an inserting block with a small volume is arranged on the side plate, the air blowing cover comprises an inserting hole, and the inserting block is in inserting fit with the inserting hole.
The magnetic conduction board includes the bottom plate, be equipped with two curb plates on the bottom plate, the stationary contact includes the stationary contact, the stationary contact is located two between the curb plate, the stationary contact is located the bottom plate top.
The inner walls of the two sides of the shell are respectively provided with a first groove used for installing the side plates.
The inner walls of the two sides of the shell are respectively provided with a second groove used for installing the air blowing cover.
The first groove is communicated with the second groove.
The arc extinguishing chamber comprises a plurality of arc extinguishing grid plates, and the shell is provided with a plurality of third grooves which are used for being filled in one side of each arc extinguishing grid plate.
The housing includes a first housing and a second housing that are detachably connected.
The static contact comprises a sheet body, a boss is further arranged in the shell, the bottom end face of the sheet body is in contact with the boss, and a static contact is arranged on the top end face of the sheet body.
The beneficial effects of the utility model are as follows: the utility model provides a breaking mechanism of a plastic shell breaker, which is characterized in that a magnetic conduction plate and an air blowing cover are mutually assembled, and the two assembled components are assembled in a shell, so that the breaking mechanism is convenient to assemble and disassemble.
Drawings
Fig. 1 is an exploded view of one embodiment of the present utility model.
Fig. 2 is an internal perspective view of an embodiment of the present utility model.
Fig. 3 is a schematic view of a partial explosion of an embodiment of the present utility model.
Fig. 4 is a partial perspective view of an embodiment of the present utility model.
Fig. 5 is a partial perspective view of an embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the breaking mechanism of the molded case circuit breaker comprises a shell 1, wherein a fixed contact 2, an arc extinguish chamber 3 and a movable contact 4 which is rotatably arranged are arranged in the shell, the movable contact is matched with the fixed contact, the arc extinguish chamber comprises an inlet 31 and a magnetic blowing assembly which is detachably connected with the shell, the magnetic blowing assembly comprises a magnetic conduction plate 51 and a blowing cover 52 which are detachably connected, and the magnetic conduction plate and the blowing cover are relatively arranged in front of the inlet. The magnetic conduction plate and the air blowing cover are assembled together to form a module, the module is integrally installed in the shell, the assembly is convenient, one end of the moving contact is provided with a moving contact, the moving contact rotates to move the fixed contact to be matched to realize breaking and closing of the circuit breaker, the breaking and closing of the circuit breaker are not repeated, the inlet of the arc extinguishing chamber is the inlet end of an electric arc, and the magnetic blowing assembly is arranged at the inlet end of the electric arc.
In this embodiment, as shown, the magnetic plate includes a side plate 511, and the air-blowing cover includes a jack 521, and the side plate is in plug-in fit with the jack. In this embodiment, the air-cap is directly connected to the side panel, which is advantageous in comparison to the process.
In this embodiment, as shown in the figure, the magnetic conductive plate includes a side plate 511, and the side plate is provided with a small-sized insert block 512, and the air-blowing cover includes an insertion hole 521, where the insert block is in plug-in fit with the insertion hole. In this embodiment, the plug-in block with a smaller volume is provided to realize connection, which is more beneficial to assembly.
In this embodiment, as shown in the drawing, the magnetic conductive plate includes a bottom plate 510, two side plates 511 are disposed on the bottom plate, and the stationary contact includes a stationary contact 41, where the stationary contact is disposed between the two side plates, and the stationary contact is disposed above the bottom plate. The structure surrounding the stationary contact is integrally formed, which is beneficial to arc guiding.
In this embodiment, as shown in the figure, the inner walls of the two sides of the housing are provided with first grooves 11 for mounting the side plates. At least part of the side plate is arranged in the first groove to realize installation, and the side plate is simple in structure and convenient to disassemble and assemble.
In this embodiment, as shown in the figure, the inner walls of the two sides of the housing are provided with second grooves 12 for mounting the air-blowing cover. At least part of the air blowing cover is arranged in the first groove to realize installation, and the air blowing cover has a simple structure and is convenient to disassemble and assemble.
In this embodiment, as shown, the first groove and the second groove are in communication. And is more beneficial to processing and assembly.
In this embodiment, as shown, the arc extinguishing chamber comprises a plurality of arc extinguishing bars 32, and the housing has a plurality of third grooves 13 for receiving one side of each arc extinguishing bar. Each arc-extinguishing grid piece is provided with a third groove to realize fixation, the installation is more stable, and the connecting plate arranged on the arc-extinguishing grid piece can be provided with an additional mounting groove to realize fixation.
In this embodiment, as shown, the housing includes a first housing 101 and a second housing 102 that are detachably connected. The first housing and the second housing can be connected by means of screws or rivets.
In this embodiment, as shown in the figure, the stationary contact includes a sheet body 40, a boss 14 is further disposed in the housing, a bottom end surface of the sheet body contacts the boss, and a top end surface of the sheet body is provided with the stationary contact 41. The sheet body is supported, and the fixed contact is not easy to damage after the moving contact is knocked down.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiments described with reference to the drawings are exemplary and intended to be illustrative of the utility model and should not be construed as limiting the utility model. The examples should not be construed as limiting the utility model, but any modifications based on the spirit of the utility model should be within the scope of the utility model.
Claims (10)
1. Breaking mechanism of moulded case circuit breaker, including casing (1), be equipped with moving contact (4) that static contact (2), explosion chamber (3) and rotatable setting in the casing, the moving contact with the static contact cooperatees, the explosion chamber includes import (31), its characterized in that: the magnetic blowing assembly is detachably connected with the shell and comprises a detachably connected magnetic conduction plate (51) and a blowing cover (52), and the magnetic conduction plate and the blowing cover are oppositely arranged in front of the inlet.
2. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the magnetic conduction plate comprises a side plate (511), the air blowing cover comprises a jack (521), and the side plate is in plug-in fit with the jack.
3. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the magnetic conduction plate comprises a side plate (511), an inserting block (512) with a small volume is arranged on the side plate, the air blowing cover comprises an inserting hole (521), and the inserting block is in inserting fit with the inserting hole.
4. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the magnetic conduction plate comprises a bottom plate (510), two side plates (511) are arranged on the bottom plate, the static contact comprises a static contact (41), the static contact is arranged between the two side plates, and the static contact is arranged above the bottom plate.
5. Breaking mechanism of a molded case circuit breaker according to claim 4, characterized in that: the inner walls of the two sides of the shell are respectively provided with a first groove (11) for installing the side plates.
6. Breaking mechanism of a molded case circuit breaker according to claim 5, characterized in that: the inner walls of the two sides of the shell are respectively provided with a second groove (12) for installing the air blowing cover.
7. Breaking mechanism of a molded case circuit breaker according to claim 6, characterized in that: the first groove is communicated with the second groove.
8. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the arc-extinguishing chamber comprises a plurality of arc-extinguishing grid plates (32), and the shell is provided with a plurality of third grooves (13) which are used for being installed on one side of each arc-extinguishing grid plate.
9. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the housing comprises a first housing (101) and a second housing (102) which are detachably connected.
10. Breaking mechanism of a molded case circuit breaker according to claim 1, characterized in that: the static contact comprises a sheet body (40), a boss (14) is further arranged in the shell, the bottom end face of the sheet body is in contact with the boss, and a static contact (41) is arranged on the top end face of the sheet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094739.4U CN219800759U (en) | 2023-05-06 | 2023-05-06 | Breaking mechanism of plastic case breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094739.4U CN219800759U (en) | 2023-05-06 | 2023-05-06 | Breaking mechanism of plastic case breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219800759U true CN219800759U (en) | 2023-10-03 |
Family
ID=88178617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321094739.4U Active CN219800759U (en) | 2023-05-06 | 2023-05-06 | Breaking mechanism of plastic case breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219800759U (en) |
-
2023
- 2023-05-06 CN CN202321094739.4U patent/CN219800759U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |