CN217035565U - Striking structure of DPN miniature circuit breaker - Google Patents
Striking structure of DPN miniature circuit breaker Download PDFInfo
- Publication number
- CN217035565U CN217035565U CN202220715027.9U CN202220715027U CN217035565U CN 217035565 U CN217035565 U CN 217035565U CN 202220715027 U CN202220715027 U CN 202220715027U CN 217035565 U CN217035565 U CN 217035565U
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- CN
- China
- Prior art keywords
- sheet
- connecting sheet
- dpn
- circuit breaker
- arc striking
- Prior art date
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
An arc striking structure of a DPN miniature circuit breaker. The conventional problem that sets up the little temperature rise of electric welding area of mainly solving present DPN miniature circuit breaker. The method is characterized in that: the arc striking plate comprises an arc striking sheet (31) and a connecting sheet (32), one end of the arc striking sheet is used for extending into the bottom of the arc extinguishing chamber, one end of the connecting sheet is connected with the connecting sheet, the height h of the connecting sheet is larger than the thickness d of the connecting sheet, and the moving contact is connected with the lateral end face of the connecting sheet through a conducting wire (33). The utility model provides an arc striking structure of a DPN miniature circuit breaker, wherein a connecting sheet is arranged on an arc striking sheet and connected with a lug plate, the connecting sheet is vertically arranged, the height of the connecting sheet is greater than the width of the connecting sheet, a lead is connected to the side surface of the connecting sheet, a larger spot welding position is provided, the temperature rise is lower, and the cost is lower.
Description
Technical Field
The utility model relates to the field of miniature circuit breakers, in particular to an arc striking structure of a DPN miniature circuit breaker.
Background
The DPN miniature circuit breaker is used in a single-phase residential line with 50Hz or 60Hz alternating current and 230V rated voltage, and is used for protecting the overload and short circuit of an electric line. The product has high breaking capacity and small volume, and the zero line and the live line are cut off simultaneously, thereby putting an end to the personal and fire hazards caused by the reverse connection of the live line and the zero line or the ground potential by the zero line, and being the most ideal distribution protection switch in the field of civil houses.
The DPN miniature circuit breaker has strict requirements on thickness and thus has high requirements on parts in the case, and the conventional DPN circuit breaker has a lug on a copper sheet (lug) and is transversely arranged, so that the conventional DPN circuit breaker is limited by the thickness of the case, the lug cannot be made large, and the spot welding area is small and the temperature is high.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the background art, the utility model provides an arc striking structure of a DPN miniature circuit breaker, which mainly solves the problem that the conventional arrangement of the existing DPN miniature circuit breaker has small electric welding area and high temperature rise.
The technical scheme adopted by the utility model is as follows:
the utility model provides a DPN miniature circuit breaker's striking structure, includes the casing, be equipped with N utmost point moving contact, N utmost point striking plate and lug in the casing, the striking plate includes striking piece and connection piece, striking piece one end is used for stretching into the explosion chamber bottom, connection piece one end with the lug is connected, the height h of connection piece is greater than the thickness d of connection piece, the moving contact with the side direction terminal surface of connection piece passes through the wire and connects.
The shell is internally provided with a fixing groove, and the wiring piece is provided with a fin which is in splicing fit with the fixing groove.
One end of the connecting sheet is bent to form a first sheet for connecting with the connecting sheet.
The lug plate comprises an inner plate and an outer plate which are arranged vertically,
the shell is also internally provided with a first wall and a second wall which are correspondingly arranged front and back, and a limiting groove used for limiting the front and back directions of the inner sheet is formed between the first wall and the second wall.
The inner sheet is provided with a boss, and one side end face of the first sheet is in blocking fit with the boss.
The fins are arranged on the end faces of the left side and the right side of the inner sheet.
The lug is made of red copper, and the connecting piece is made of steel.
The beneficial effects of the utility model are: the utility model provides an arc striking structure of a DPN miniature circuit breaker, wherein a connecting sheet is arranged on an arc striking sheet and connected with a lug plate, the connecting sheet is vertically arranged, the height of the connecting sheet is greater than the width of the connecting sheet, a lead is connected to the side surface of the connecting sheet, a larger spot welding position is provided, the temperature rise is lower, and the cost is lower.
Drawings
Fig. 1 is a schematic view of the internal structure of an embodiment of the present invention.
Fig. 2 is a partial perspective view of an embodiment of the present invention.
Fig. 3 is a perspective view illustrating a tab according to an embodiment of the present invention.
Fig. 4 is a partial perspective view of an embodiment of the present invention.
Fig. 5 is a partial perspective view of an embodiment of the present invention.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which: as shown in the figure, the arc striking structure of the DPN miniature circuit breaker comprises a shell 1, wherein an N-pole moving contact 2, an N-pole arc striking plate 3 and a lug 4 are arranged in the shell, the arc striking plate comprises an arc striking plate 31 and a connecting plate 32, one end of the arc striking plate is used for stretching into the bottom of an arc extinguish chamber, one end of the connecting plate is connected with the lug, the height h of the connecting plate is larger than the thickness d of the connecting plate, and the moving contact is connected with the lateral end face of the connecting plate through a wire 33. The arc striking piece is preferably made of steel (Q195), the wiring piece is made of red copper, and a connecting piece on the arc striking piece is also made of steel, so that the using amount of the red copper is reduced firstly, and on the other hand, referring to fig. 4, the height h of the connecting piece is larger than the thickness d of the connecting piece and is connected to the side surface of the connecting piece.
In this embodiment, as shown in the figure, a fixing groove 11 is formed in the housing, and a tab 41 is provided on the terminal strip and is in insertion fit with the fixing groove. Be used for fixing a position the lug, the both sides inner wall of casing all can set up, prevents that the lug from rocking.
In this embodiment, as shown in the figure, one end of the connecting piece is bent to form a first piece 321 for connecting with a wire connector lug. The contact surface can be increased, and the connection is more stable.
In this embodiment, as shown in the figure, the wire connecting piece includes an inner piece 42 and an outer piece 43 which are relatively vertically arranged, the housing is further provided with a first wall 12 and a second wall 13 which are correspondingly arranged front and back, and a limiting groove 14 for limiting the front and back direction of the inner piece is formed between the first wall and the second wall. Can carry on spacingly to the splice piece fore-and-aft direction, the installation is more firm.
In this embodiment, as shown in the figure, a boss 421 is provided on the inner sheet, and a side end face of the first sheet is in blocking fit with the boss. Further increasing the robustness of the installation.
In this embodiment, as shown in the drawings, the fins are disposed on the left and right end surfaces of the inner sheet. Further increasing the robustness of the installation.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The embodiments described with reference to the figures are illustrative and are 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 present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims (7)
1. The utility model provides a DPN miniature circuit breaker's striking structure, includes casing (1), be equipped with N utmost point moving contact (2), N utmost point striking board (3) and lug (4) in the casing, its characterized in that: the arc striking plate comprises an arc striking sheet (31) and a connecting sheet (32), one end of the arc striking sheet is used for extending into the bottom of the arc extinguishing chamber, one end of the connecting sheet is connected with the connecting sheet, the height h of the connecting sheet is larger than the thickness d of the connecting sheet, and the moving contact is connected with the lateral end face of the connecting sheet through a wire (33).
2. The arc striking structure of a DPN miniature circuit breaker of claim 1, characterized in that: the shell is internally provided with a fixing groove (11), and the wiring piece is provided with a fin (41) which is in splicing fit with the fixing groove.
3. The arc striking structure of a DPN miniature circuit breaker according to claim 2, characterized in that: one end of the connecting sheet is bent to form a first sheet (321) used for being connected with the connecting sheet.
4. The arc striking structure of a DPN miniature circuit breaker according to claim 3, characterized in that: the lug plate comprises an inner plate (42) and an outer plate (43) which are arranged vertically,
the inner shell is also internally provided with a first wall (12) and a second wall (13) which are correspondingly arranged front and back, and a limit groove (14) for limiting the front and back directions of the inner sheet is formed between the first wall and the second wall.
5. The arc striking structure of a DPN miniature circuit breaker according to claim 4, characterized in that: the inner sheet is provided with a boss (421), and one side end face of the first sheet is in blocking fit with the boss.
6. The arc striking structure of a DPN miniature circuit breaker according to claim 5, characterized in that: the fins are arranged on the end faces of the left side and the right side of the inner sheet.
7. The arc striking structure of a DPN miniature circuit breaker according to claim 6, characterized in that: the lug is made of red copper, and the connecting piece is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220715027.9U CN217035565U (en) | 2022-03-30 | 2022-03-30 | Striking structure of DPN miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220715027.9U CN217035565U (en) | 2022-03-30 | 2022-03-30 | Striking structure of DPN miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035565U true CN217035565U (en) | 2022-07-22 |
Family
ID=82412782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220715027.9U Active CN217035565U (en) | 2022-03-30 | 2022-03-30 | Striking structure of DPN miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035565U (en) |
-
2022
- 2022-03-30 CN CN202220715027.9U patent/CN217035565U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325600 No. 18, Sha Hung Road, North Bai Xiang Town, Yueqing, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Address before: 325600 No. 18, Sha Hung Road, North Bai Xiang Town, Yueqing, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |