CN219716766U - Arc extinguishing device of molded case circuit breaker - Google Patents
Arc extinguishing device of molded case circuit breaker Download PDFInfo
- Publication number
- CN219716766U CN219716766U CN202320330890.7U CN202320330890U CN219716766U CN 219716766 U CN219716766 U CN 219716766U CN 202320330890 U CN202320330890 U CN 202320330890U CN 219716766 U CN219716766 U CN 219716766U
- Authority
- CN
- China
- Prior art keywords
- arc extinguishing
- circuit breaker
- arc
- case circuit
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004880 explosion Methods 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 239000012634 fragment Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 20
- 238000002955 isolation Methods 0.000 description 11
- 230000008033 biological extinction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Breakers (AREA)
Abstract
The utility model discloses an arc-extinguishing device of a molded case circuit breaker, which comprises an arc-extinguishing chamber and arc-extinguishing plates, wherein a plurality of partition plates are arranged on the arc-extinguishing chamber, the partition plates divide the arc-extinguishing chamber into a plurality of chambers, a plurality of clamping grooves are arranged in each chamber, the arc-extinguishing plates extend into the clamping grooves to be fixed, a plurality of through holes are arranged on the arc-extinguishing plates, and the arc-extinguishing chamber is fixedly connected with the molded case circuit breaker; the utility model has simple structure, convenient installation and reduced production cost.
Description
Technical Field
The utility model relates to an arc extinguishing device of a molded case circuit breaker.
Background
In the prior art, as the patent number is 202120344656.0, the patent name is a thermomagnetic molded case circuit breaker with a zero arcing device, an arc extinguishing cover and an arc isolation cover are disclosed, and an arc extinguishing effect is realized by arranging a plurality of arc sucking plates in the arc extinguishing cover.
However, in the actual processing and assembly process, the structure needs to be assembled by a plurality of parts, the assembly efficiency is low, and the production cost is increased, so that an arc extinguishing device capable of improving the assembly efficiency and reducing the production cost is urgently needed.
Disclosure of Invention
The utility model mainly solves the technical problem of providing an arc extinguishing device of a molded case circuit breaker.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an arc extinguishing device of moulded case circuit breaker, wherein, including explosion chamber and arc extinguishing piece, be equipped with a plurality of baffle on the explosion chamber, the baffle separates the explosion chamber and forms a plurality of cavity, is equipped with a plurality of draw-in groove in every cavity, and the arc extinguishing piece stretches into to draw-in groove internal fixation, is equipped with a plurality of through-hole on the arc extinguishing piece, and the explosion chamber is fixed with moulded case circuit breaker connection.
By adopting the structure, the arc extinguishing piece and the arc extinguishing cover are directly installed, and then the arc extinguishing piece and the molded case circuit breaker are assembled, so that the arc extinguishing effect is realized. And the arrangement of the partition plate forms an isolation effect between the wiring terminals, and the isolation between two adjacent wiring terminals is improved. The structure is convenient to install and reduces the production cost.
The clamping groove comprises a clamping cavity and a side opening, the clamping cavity is communicated with the side opening, the arc extinguishing piece is matched with the side opening, a first elastic piece and a second elastic piece are arranged on the side face of the arc extinguishing piece, the first elastic piece abuts against the upper end of the clamping cavity, and the second elastic piece abuts against the lower end of the clamping cavity.
The elastic phase of the clamping groove and the arc-extinguishing piece is clamped, so that the fixing effect of the arc-extinguishing piece is realized, the arc-extinguishing piece is prevented from falling off in the using process, and the fixing stability of the arc-extinguishing piece is improved.
Wherein, first shell fragment and second shell fragment are stamping forming.
The first elastic sheet and the second elastic sheet are adjacently arranged, an upward structure and a downward structure are formed through stamping, and the matching effect with the clamping groove is achieved.
Wherein, be equipped with a plurality of heat dissipation groove on the top surface and the trailing flank of explosion chamber.
The heat dissipation groove is arranged, so that heat generated after arc extinction is discharged rapidly, and a cooling effect is formed.
Wherein, be equipped with a plurality of fixed column on the explosion chamber, there is the intersection in fixed column and baffle, is equipped with first fixed orifices on the fixed column, and first fixed orifices runs through the fixed column.
The arrangement of the first fixing hole enables connection and fixation between the arc extinguishing chamber and the molded case circuit breaker to be firmer. The bolt passes through the first fixing hole to be connected with the molded case circuit breaker.
Wherein, the arc-extinguishing chamber top surface is close to and is equipped with the second fixed orifices on moulding shell circuit breaker one side.
The arrangement of the second fixing holes strengthens the fixing effect between the arc extinguishing chamber and the molded case circuit breaker.
Wherein, be equipped with first fixed muscle on the explosion chamber.
The arrangement of the first fixing ribs enables the arc extinguishing chamber to be matched with the molded case circuit breaker better, and the fixing effect is achieved.
Wherein, the top surface of explosion chamber is equipped with the strengthening rib down on the one side.
The arrangement of the reinforcing ribs is adopted, so that the strength of the arc extinguishing chamber is improved.
Wherein, be equipped with the fixed muscle of second on the explosion chamber, the fixed muscle of second communicates with the strengthening rib.
The arrangement of the second fixing ribs further improves the matching and fixing effect between the arc extinguishing chamber and the molded case circuit breaker.
Wherein, be equipped with division board fixed slot on the explosion chamber.
The division board is external rubber spare, inserts to the division board fixed slot through the division board in to strengthen holistic isolation effect.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;
fig. 3 is a schematic structural view of an arc chute according to embodiment 1 of the present utility model;
fig. 4 is a schematic structural view of an arc extinguishing plate in embodiment 1 of the present utility model.
Detailed Description
Example 1:
referring to fig. 1 to 4, an arc extinguishing device of a molded case circuit breaker includes an arc extinguishing chamber 1 and an arc extinguishing plate 2.
The arc extinguishing device in the embodiment is used for being matched with one end of the molded case circuit breaker. The end specifically corresponds to one end of a moving contact in the molded case circuit breaker, namely a fixed contact matched with the moving contact, and the fixed contact is fixedly connected through a wiring terminal. Based on the background art, a person skilled in the art should know how to implement the cooperation of the arc extinguishing device with the molded case circuit breaker, so the molded case circuit breaker is not shown in the present embodiment.
The arc extinguishing chamber 1 is integrally made of plastic and is integrally formed by injection molding.
The top surface of the arc-extinguishing chamber 1 is provided with an extension 11 extending towards the molded case circuit breaker, wherein the extension 11 is arranged coplanar with the top surface. The extension portion 11 is provided with a plurality of second fixing holes 111, and a person skilled in the art can increase or decrease the number of the second fixing holes 111 according to actual needs. In the present embodiment, the number of the second fixing holes 111 is two, and the two second fixing holes 111 are provided on both sides of the extension portion 11. The bolts pass through the second fixing holes 111 to be connected and fixed with the molded case circuit breaker.
The extension 11 is provided with a stiffening rib 112 on the side facing the lower end, wherein the stiffening rib 112 is arranged in a ring shape, and the strength of the arc extinguishing chamber 1 is improved by adopting the arrangement of the stiffening rib 112.
The top surface of the arc-extinguishing chamber 1 is also provided with a plurality of heat dissipation grooves 12, the heat dissipation grooves 12 are distributed in an array, and the shape, the size and the interval between the heat dissipation grooves 12 can be adjusted according to actual requirements by a person skilled in the art.
A plurality of partition boards 3 are arranged in the arc-extinguishing chamber 1, the number of the partition boards 3 in the embodiment is two, and the two partition boards 3 divide the arc-extinguishing chamber 1 to form three chambers 31. The number of chambers 31 is identical to the phase line of the molded case circuit breaker, and if there is a zero line, one chamber 31 can be added. The three chambers 31 are all used for fixing the arc-extinguishing plates 2, and have the same structure, but the structures formed by the chambers 31 are slightly different, the chamber 31 positioned at the left side is formed by matching the left side plate of the arc-extinguishing cover 1 with the partition plate 3, the chamber 31 positioned in the middle is formed by matching the two partition plates 3, and the chamber 31 positioned at the right side is formed by matching the right side plate of the arc-extinguishing cover 1 with the partition plate 3. In the present embodiment, only one of the chambers 31 is described.
A plurality of clamping grooves 32 are formed in two sides of the cavity 31, and two corresponding clamping grooves 32 on two sides are correspondingly fixed with one arc extinguishing piece 2. In this case, a plurality of arc extinguishing plates 2 may be fixed in one chamber 31, and the arc extinguishing plates 2 may be fixed at equal intervals or may be fixed at unequal intervals. The draw-in groove 32 includes card chamber 321, side opening 322 and front opening 323, and the front end and the front opening 323 intercommunication of card chamber 321, the side of card chamber 321 then with side opening 322 intercommunication, arc extinguishing piece 2 is in the installation, stretches into in the card chamber 321 through front opening 323 slip to realize fixed effect. It should be noted that, the lower end of the cavity 31 is hollow, and when the arc extinguishing chamber 1 is matched with the molded case circuit breaker, the connection terminal is located at the lower end of the cavity 31, i.e. the connection position of the external wire and the connection terminal is located in the cavity 31.
Be equipped with a plurality of fixed column 13 on the explosion chamber 1, there is the intersection in fixed column 13 and baffle 3, and fixed column 13 is perpendicular downwardly extending for fixed column 13 and baffle 3 partial coincidence, be equipped with first fixed orifices 131 on the fixed column 13, first fixed orifices 131 run through fixed column 13. The arrangement of the first fixing hole 131 makes the connection and fixation between the arc extinguishing chamber 1 and the molded case circuit breaker more firm. Here, in particular, a bolt is connected with the molded case circuit breaker through the first fixing hole 131.
The left side plate and the right side plate of the arc-extinguishing chamber 1 are respectively provided with a first fixing rib 14 and a second fixing rib 15, the first fixing rib 14 is positioned at one end far away from the molded case circuit breaker, the second fixing rib 15 is positioned at one end close to the molded case circuit breaker, and in the embodiment, the second fixing rib 15 is connected with the reinforcing rib 112. Here, the first fixing rib 14 and the second fixing rib 15 are both used for achieving the fixing effect between the arc extinguishing chamber 1 and the molded case circuit breaker.
The rear side of the arc-extinguishing chamber 1 is also provided with a plurality of heat dissipation grooves 12. The heat dissipation groove 12 is adopted, so that heat generated after arc extinction is discharged rapidly, and a cooling effect is formed.
The rear side of the arc-extinguishing chamber 1 is also provided with a baffle fixing slot 16. The isolation plate is an external rubber piece and is inserted into the isolation plate fixing groove 16 through the isolation plate, so that the overall isolation effect is enhanced. In this embodiment, the number of the fixing grooves 16 is two, and the fixing effect can be achieved by inserting the isolation plate vertically downward from above the top surface.
In addition, it should be noted that the rear side of the arc extinguishing chamber 1 is further provided with a notch 17, and the external wire can be matched with the wiring terminal through the notch 17, so as to achieve the wiring effect.
The number of the arc extinguishing plates 2 can be increased or decreased according to actual requirements, and two sides of each arc extinguishing plate 2 are correspondingly arranged in the clamping groove 32. In the present embodiment, only one of the arc extinguishing plates 2 is described as an example.
The arc extinguishing piece 2 is provided with a plurality of through holes 21, and the through holes 21 can be round holes, square holes or diamond holes. The through holes 21 all play a role in arc extinction and heat dissipation. The side of the arc extinguishing piece 2 is provided with a first elastic piece 22 and a second elastic piece 23, the first elastic piece 22 is propped against the upper end of the clamping cavity 321, and the second elastic piece 23 is propped against the lower end of the clamping cavity 321. The clamping groove 32 is clamped with the elasticity of the arc-extinguishing sheet 2, so that the fixing effect of the arc-extinguishing sheet 2 is realized, the arc-extinguishing sheet 2 is prevented from falling off in the use process, and the fixing stability of the arc-extinguishing sheet 2 is improved. Further, the first elastic piece 22 and the second elastic piece 23 are formed by punching. The first elastic sheet 22 and the second elastic sheet 23 are adjacently arranged, and an upward structure and a downward structure are formed through stamping, so that the matching effect with the clamping groove 32 is realized.
By adopting the structure, the arc extinguishing piece 2 and the arc extinguishing cover 1 are directly installed, and then the arc extinguishing piece 1 and the molded case circuit breaker are assembled, so that the arc extinguishing effect is realized. And the arrangement of the partition plate 3 forms an isolation effect between the wiring terminals, and improves the isolation between two adjacent wiring terminals. The structure is convenient to install and reduces the production cost.
Claims (10)
1. An arc extinguishing device of a molded case circuit breaker, which is characterized in that: including explosion chamber and arc-extinguishing piece, be equipped with a plurality of baffle on the explosion chamber, the baffle separates the explosion chamber and forms a plurality of cavity, is equipped with a plurality of draw-in groove in every cavity, and the arc-extinguishing piece stretches into to draw-in groove internal fixation, is equipped with a plurality of through-hole on the arc-extinguishing piece, and the explosion chamber is fixed with moulded case circuit breaker connection.
2. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: the draw-in groove includes card chamber and side opening, and card chamber and side opening intercommunication, arc extinguishing piece and side opening adaptation are equipped with first shell fragment and second shell fragment on the side of arc extinguishing piece, and first shell fragment offsets with the upper end in card chamber, and the second shell fragment offsets with the lower extreme in card chamber.
3. The arc extinguishing device of a molded case circuit breaker as claimed in claim 2, wherein: the first elastic sheet and the second elastic sheet are formed by stamping.
4. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: the top surface and the back side surface of the arc extinguishing chamber are provided with a plurality of heat dissipation grooves.
5. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: be equipped with a plurality of fixed column on the explosion chamber, there is the intersection with the baffle in the fixed column, is equipped with first fixed orifices on the fixed column, and first fixed orifices runs through the fixed column.
6. The arc extinguishing device of a molded case circuit breaker as recited in claim 5, wherein: and a second fixing hole is formed in one side, close to the molded case circuit breaker, of the top surface of the arc extinguishing chamber.
7. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: the arc extinguishing cover is provided with a first fixing rib.
8. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: the top surface of the arc extinguishing chamber faces to the lower side and is provided with a reinforcing rib.
9. The arc extinguishing device of a molded case circuit breaker as recited in claim 8, wherein: the arc extinguishing chamber is provided with a second fixing rib which is communicated with the reinforcing rib.
10. The arc extinguishing device of a molded case circuit breaker as recited in claim 1, wherein: the arc extinguishing cover is provided with a separation plate fixing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330890.7U CN219716766U (en) | 2023-02-15 | 2023-02-15 | Arc extinguishing device of molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330890.7U CN219716766U (en) | 2023-02-15 | 2023-02-15 | Arc extinguishing device of molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716766U true CN219716766U (en) | 2023-09-19 |
Family
ID=87999939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320330890.7U Active CN219716766U (en) | 2023-02-15 | 2023-02-15 | Arc extinguishing device of molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716766U (en) |
-
2023
- 2023-02-15 CN CN202320330890.7U patent/CN219716766U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |