CN217114288U - N-pole static contact structure of DPN miniature circuit breaker - Google Patents
N-pole static contact structure of DPN miniature circuit breaker Download PDFInfo
- Publication number
- CN217114288U CN217114288U CN202220715037.2U CN202220715037U CN217114288U CN 217114288 U CN217114288 U CN 217114288U CN 202220715037 U CN202220715037 U CN 202220715037U CN 217114288 U CN217114288 U CN 217114288U
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- Prior art keywords
- dpn
- main board
- circuit breaker
- miniature circuit
- groove
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- 230000003068 static effect Effects 0.000 title claims abstract description 20
- 230000000670 limiting effect Effects 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
An N-pole static contact structure of a DPN miniature circuit breaker. The problem of difficult processing when mainly solving the lug welding of present conventional static contact. The method is characterized in that: the static contact comprises a main board (21), the main board is arranged above the arc extinguish chamber, a hook head (22) is formed at one end of the main board, the hook head comprises an upward groove (23), an elastic part (24) is arranged in the groove, the elastic part is pressed against the side walls of the two sides of the groove, and a contact (25) is arranged on the outer wall of the hook head; the other end of the main board extends into the wiring frame (26) for wiring. The utility model provides a DPN miniature circuit breaker's the quiet contact structure of N utmost point sets up the lug in mainboard one end rather than the tail end welding at the gib head, has reduced the degree of difficulty of processing, the cost is reduced.
Description
Technical Field
The utility model relates to a miniature circuit breaker field, concretely relates to DPN miniature circuit breaker's utmost point static contact structure of N.
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 hazard caused by the reverse connection of the live line and the zero line or the ground potential caused by the zero line, and being the most ideal distribution protection switch in the civil housing field.
The fixed contact of the existing DPN miniature circuit breaker is usually led out at the top of a hook head by welding a connecting sheet for wiring, and the tail end of the hook head is a bent pin with large curvature, so that the problem that the bent pin is difficult to process during welding is solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a DPN miniature circuit breaker's the very quiet contact structure of N mainly solves the difficult problem of processing when the lug welding of present conventional static contact.
The utility model adopts the technical proposal that:
an N-pole static contact structure of a DPN miniature circuit breaker comprises a shell, wherein a static contact and an arc extinguish chamber are arranged in the shell, the static contact comprises a main board, the main board is arranged above the arc extinguish chamber, a hook head is formed at one end of the main board, the hook head comprises an upward groove, an elastic part is arranged in the groove, the elastic part is pressed against the side walls of the two sides of the groove, and a contact is arranged on the outer wall of the hook head;
the other end of the main board extends into the wiring frame for wiring.
The elastic piece is a V-shaped elastic piece.
The mainboard is provided with a lug in an integrated mode, and the width of the lug is larger than that of the mainboard.
The elastic sheet comprises a first sheet and a second sheet, the second sheet is attached to the inner wall of one side of the groove, and one end of the first sheet is in contact with the inner wall of the groove.
Fins are arranged at two ends of the wiring lug, and limiting grooves used for the fins to stretch into are formed in the shell.
The static contact is integrally made.
The utility model has the advantages that: the utility model provides a DPN miniature circuit breaker's the quiet contact structure of N utmost point sets up the lug in mainboard one end rather than the tail end welding at the gib head, has reduced the degree of difficulty of processing, the cost is reduced.
Drawings
Fig. 1 is a schematic diagram of an internal structure of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a static contact according to an embodiment of the present invention.
Fig. 3 is a partial perspective view of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, the static contact structure of the N pole of the DPN miniature circuit breaker comprises a housing 1, a static contact 2 and an arc extinguish chamber 3 are arranged in the housing, the static contact comprises a main board 21, the main board is arranged above the arc extinguish chamber, a hook head 22 is formed at one end of the main board, the hook head comprises an upward groove 23, an elastic part 24 is arranged in the groove, the elastic part is pressed against the side walls of the two sides of the groove, and a contact 25 is arranged on the outer wall of the hook head; the other end of the main board extends into the wiring frame 26 for wiring. Original lug is for realizing through the welding at the gib head tail end, because the tail end of gib head is the great arc 20 of camber, has great inconvenience man-hour, and the mainboard extension that will be used for leading the arc now is used for the wiring, does not need complicated processing to set up the impact that the elastic component is used for buffering the moving contact in the ditch inslot, this elastic component can be shell fragment or spring etc..
In this embodiment, as shown in the figure, the elastic member is a V-shaped elastic sheet. The structure is simple, the use is convenient,
in this embodiment, as shown in the figure, the main board is integrally provided with a lug 211, and the width of the lug is greater than that of the main board. The wiring area is bigger, and the result of use is better.
In this embodiment, as shown in the figure, the elastic sheet includes a first sheet 241 and a second sheet 242, the second sheet is attached to the inner wall of one side of the groove, and one end of the first sheet is in contact with the inner wall of the groove. The first piece has bigger area of contact with the laminating of one side inner wall, uses more stably.
In this embodiment, as shown in the figure, fins 212 are disposed at two ends of the lug, and the housing is provided with a limiting groove 13 for the fins to extend into. The fin is matched with the limiting groove to realize the fixation of the lug plate.
In this embodiment, as shown in the figure, the static contact is made integrally. The processing and the manufacturing are convenient.
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", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not 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 limited otherwise.
The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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 the present invention.
Claims (6)
1. The utility model provides a DPN miniature circuit breaker's N utmost point static contact structure, includes casing (1), be equipped with static contact (2) and explosion chamber (3) in the casing, its characterized in that: the static contact comprises a main board (21), the main board is arranged above the arc extinguish chamber, a hook head (22) is formed at one end of the main board, the hook head comprises an upward groove (23), an elastic part (24) is arranged in the groove, the elastic part is pressed against the side walls of the two sides of the groove, and a contact (25) is arranged on the outer wall of the hook head;
the other end of the main board extends into the wiring frame (26) for wiring.
2. The N-pole stationary contact structure of a DPN miniature circuit breaker of claim 1, characterized in that: the elastic piece is a V-shaped elastic piece.
3. The N-pole stationary contact structure of a DPN miniature circuit breaker of claim 2, characterized in that: a lug (211) is integrally arranged on the main board, and the width of the lug is larger than that of the main board.
4. The N-pole stationary contact structure of a DPN miniature circuit breaker of claim 3, characterized in that: the elastic sheet comprises a first sheet (241) and a second sheet (242), the second sheet is attached to the inner wall of one side of the groove, and one end of the first sheet is in contact with the inner wall of the groove.
5. The N-pole stationary contact structure of a DPN miniature circuit breaker according to claim 4, characterized in that: fins (212) are arranged at two ends of the wiring lug, and a limiting groove (13) for the fins to extend into is arranged on the shell.
6. The N-pole stationary contact structure of a DPN miniature circuit breaker of claim 5, characterized in that: the static contact is integrally made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220715037.2U CN217114288U (en) | 2022-03-30 | 2022-03-30 | N-pole static contact structure of DPN miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220715037.2U CN217114288U (en) | 2022-03-30 | 2022-03-30 | N-pole static contact structure of DPN miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217114288U true CN217114288U (en) | 2022-08-02 |
Family
ID=82578202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220715037.2U Active CN217114288U (en) | 2022-03-30 | 2022-03-30 | N-pole static contact structure of DPN miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217114288U (en) |
-
2022
- 2022-03-30 CN CN202220715037.2U patent/CN217114288U/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 | ||
| 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. |