CN217387065U - Arc extinguishing structure suitable for DPN circuit breaker - Google Patents
Arc extinguishing structure suitable for DPN circuit breaker Download PDFInfo
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- CN217387065U CN217387065U CN202221363677.8U CN202221363677U CN217387065U CN 217387065 U CN217387065 U CN 217387065U CN 202221363677 U CN202221363677 U CN 202221363677U CN 217387065 U CN217387065 U CN 217387065U
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- arc
- utmost point
- dpn
- circuit breaker
- arc extinguishing
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- 238000004880 explosion Methods 0.000 claims abstract description 17
- 238000010891 electric arc Methods 0.000 claims description 11
- 230000003068 static effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The arc extinguishing structure is suitable for the DPN circuit breaker. The problem that the current DPN circuit breaker arc extinguishing effect is not good is mainly solved. The method is characterized in that: the medium plate is relative N utmost point cavity place one side is equipped with a plurality of bounding walls (3), and is a plurality of the bounding wall is enclosed and is formed fixing base (31), be equipped with holding tank (32) with the intercommunication of the utmost point cavity of L in the fixing base, still include explosion chamber (4), explosion chamber part is located in the utmost point cavity of L, the part is located in the holding tank. The utility model provides an arc extinguishing structure suitable for DPN circuit breaker sinks the mesochite part and sets up the holding tank and install the explosion chamber, can install great explosion chamber under the prerequisite that does not increase the shell size, increases the arc extinguishing effect.
Description
Technical Field
The utility model relates to a circuit breaker accessories field, concretely relates to arc extinguishing structure suitable for DPN 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 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.
Because the casing of DPN circuit breaker is thinner, install the LN two poles of the earth again moreover, thereby the size of its L utmost point explosion chamber can influence consequently can influence the arc extinguishing effect.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides an arc extinguishing structure suitable for DPN circuit breaker mainly solves the current not good problem of DPN circuit breaker arc extinguishing effect.
The utility model adopts the technical proposal that:
arc extinguishing structure suitable for DPN circuit breaker, which comprises a housin, the casing includes the medium plate, medium plate one side is equipped with the utmost point cavity of L, and the opposite side is equipped with the utmost point cavity of N, the medium plate is relative utmost point cavity place one side is equipped with a plurality of bounding walls, and is a plurality of the bounding wall is enclosed and is formed the fixing base, be equipped with the holding tank with the utmost point cavity intercommunication of L in the fixing base, still including install in explosion chamber in the holding tank, explosion chamber part is located in the utmost point cavity of L, the part is located in the utmost point cavity of N.
The fixing base is provided with an open slot, the outer wall of the shell is provided with a first through groove, a first arc discharge channel is formed between the open slot and the first through groove, and the first arc discharge channel is arranged in the N-pole cavity.
The casing outer wall is equipped with the second and leads to the groove, the second lead to the groove with form the second between the explosion chamber and arrange the arc passageway, the second is arranged the arc passageway and is located in the L utmost point cavity.
The N-pole cavity is internally provided with an arc guide piece, a static contact piece and a third arc-row channel, the third arc-row channel is arranged between the arc guide piece and the static contact piece, the front end of the fixing seat is provided with the open slot, and the back part of the fixing seat is opposite to the static contact piece.
And a third through groove is formed in the shell and communicated with the third row arc channel.
The third through groove is formed in the outer wall of the bottom of the shell, and the first through groove and the second through groove are formed in the side wall of the shell.
The arc extinguishing chamber comprises an arc outlet facing the open slot.
The utility model has the advantages that: the utility model provides an arc extinguishing structure suitable for DPN circuit breaker sinks the mesochite part and sets up the holding tank and install the explosion chamber, can install great explosion chamber under the prerequisite that does not increase the shell size, increases the arc extinguishing effect.
Drawings
Fig. 1 is an exploded view 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 partial perspective view of the second embodiment of the present invention.
Fig. 4 is a schematic partial perspective view of a third 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, arc extinguishing structure suitable for DPN circuit breaker, including casing 1, the casing includes medium plate 2, medium plate one side is equipped with the utmost point cavity of L, and the opposite side is equipped with the utmost point cavity of N, the medium plate is relative utmost point cavity place one side is equipped with a plurality of bounding walls 3, and is a plurality of the bounding wall is enclosed and is drawn together and form fixing base 31, be equipped with the holding tank 32 with the utmost point cavity intercommunication of L in the fixing base, still including install in explosion chamber 4 in the holding tank, the arc extinguishing chamber part is located in the utmost point cavity of L, the part is located in the utmost point cavity of N. Locate two chambeies with the explosion chamber in, the space in the rational utilization casing, can install great explosion chamber, increase arc extinguishing effect.
The utility model discloses in, as shown in the figure, be equipped with open slot 321 on the fixing base 31, the casing outer wall is equipped with first logical groove 11, the open slot with form first arc discharge passageway 111 between the first logical groove, first arc discharge passageway is located in the N utmost point cavity. After the flashover is processed by the arc extinguish chamber, one part of the flashover is discharged out of the shell through the first arc discharge channel, the other part of the flashover is discharged out of the shell through the second arc discharge channel, and the two arc discharge channels are arranged in different cavities.
The utility model discloses in, as shown in the figure, the casing outer wall is equipped with second through groove 12, the second through groove with form second row arc passageway 121 between the explosion chamber, the second row arc passageway is located in the L utmost point cavity.
The utility model discloses in, as shown in the figure, be equipped with in the N utmost point cavity and lead arc piece 51, static contact 52 and third row arc passageway 53, the third row arc passageway is located lead the arc piece with between the static contact, the fixing base front end is equipped with open slot, back set up with the static contact relatively. The fixing seat is provided with only one open slot for arc discharge, and the back of the open slot faces to the third arc discharge channel to isolate electric arcs and prevent short circuit.
The utility model discloses in, as shown in the figure, be equipped with third through groove 13 on the casing, the third lead to the groove with arc passageway intercommunication is arranged to the third.
The utility model discloses in, as shown in the figure, the third through-groove is located the bottom outer wall of casing, first through-groove and second through-groove are located the lateral wall of casing. Further preventing short circuits.
In the present invention, as shown in the figure, the arc extinguishing chamber includes an arc outlet 41, and the arc outlet faces the open slot.
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 (7)
1. Arc extinguishing structure suitable for DPN circuit breaker, including casing (1), the casing includes medium plate (2), medium plate one side is equipped with the utmost point cavity of L, and the opposite side is equipped with the utmost point cavity of N, its characterized in that: the medium plate is relative N utmost point cavity place one side is equipped with a plurality of bounding walls (3), and is a plurality of the bounding wall is enclosed and is formed fixing base (31), be equipped with holding tank (32) with the intercommunication of the utmost point cavity of L in the fixing base, still including install in explosion chamber (4) in the holding tank, explosion chamber part is located in the utmost point cavity of L, the part is located in the utmost point cavity of N.
2. An arc extinguishing structure suitable for a DPN circuit breaker according to claim 1, characterized in that: be equipped with open slot (321) on fixing base (31), the casing outer wall is equipped with first logical groove (11), the open slot with first logical groove between form first arc discharge passageway (111), first arc discharge passageway is located in the N utmost point cavity.
3. An arc extinguishing structure suitable for a DPN circuit breaker according to claim 2, characterized in that: the casing outer wall is equipped with second and leads to groove (12), the second lead to the groove with form second row arc passageway (121) between the explosion chamber, the second is arranged the arc passageway and is located in the L utmost point cavity.
4. An arc extinguishing structure suitable for a DPN circuit breaker according to claim 3, characterized in that: be equipped with in the N utmost point cavity and lead arc piece (51), static contact (52) and third row arc passageway (53), the third row arc passageway is located lead the arc piece with between the static contact, the fixing base front end is equipped with the open slot, back and static contact set up relatively.
5. An arc extinguishing structure suitable for a DPN circuit breaker according to claim 4, characterized in that: and a third through groove (13) is formed in the shell and communicated with the third row arc channel.
6. An arc extinguishing structure suitable for a DPN circuit breaker, according to claim 5, characterized in that: the third through groove is formed in the outer wall of the bottom of the shell, and the first through groove and the second through groove are formed in the side wall of the shell.
7. An arc extinguishing structure suitable for a DPN circuit breaker according to claim 6, characterized in that: the arc extinguishing chamber comprises an arc outlet (41) facing the open slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221363677.8U CN217387065U (en) | 2022-06-02 | 2022-06-02 | Arc extinguishing structure suitable for DPN circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221363677.8U CN217387065U (en) | 2022-06-02 | 2022-06-02 | Arc extinguishing structure suitable for DPN circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217387065U true CN217387065U (en) | 2022-09-06 |
Family
ID=83089355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221363677.8U Active CN217387065U (en) | 2022-06-02 | 2022-06-02 | Arc extinguishing structure suitable for DPN circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217387065U (en) |
-
2022
- 2022-06-02 CN CN202221363677.8U patent/CN217387065U/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. |