CN213483692U - Arc extinction shroud and have circuit breaker of this arc extinction shroud - Google Patents
Arc extinction shroud and have circuit breaker of this arc extinction shroud Download PDFInfo
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- CN213483692U CN213483692U CN202022718318.7U CN202022718318U CN213483692U CN 213483692 U CN213483692 U CN 213483692U CN 202022718318 U CN202022718318 U CN 202022718318U CN 213483692 U CN213483692 U CN 213483692U
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- arc extinguishing
- arc
- extinguishing cover
- arc extinction
- shroud
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Abstract
The utility model relates to a low-voltage apparatus technical field, in particular to arc extinction shroud and have circuit breaker of this arc extinction shroud. The arc extinction shroud of the utility model mainly comprises an arc extinction shroud main body, a metal mesh plate slot and a metal mesh plate, wherein the front of the arc extinction shroud main body is provided with a main guide flow hole; the metal mesh plate slot is provided with a sub-diversion hole, and the sub-diversion hole is arranged corresponding to the main diversion hole. The arc extinction shroud of the utility model has the functions of excellent filtering metal particles and deionization.
Description
Technical Field
The utility model relates to a low-voltage apparatus technical field, in particular to arc extinction shroud and have circuit breaker of this arc extinction shroud.
Background
At present, more and more direct-current circuit breakers and direct-current isolating switches are used in the photovoltaic market, parameters are higher and higher, rated voltage even reaches DC2000V, and breaking current reaches more than 50 kA; many manufacturers adopt a multi-pole series voltage division mode to achieve high voltage, but under the condition of abnormal disconnection, the energy generated by the high voltage is larger, so that more liquefied metal particles reach the outside of the circuit breaker along with airflow, and the charged particles generated by electric arcs can cause uncertain short circuit breakdown accidents, so that the elimination of the metal particles is particularly important.
Disclosure of Invention
The utility model aims at solving the above-mentioned problem, will be along with the air current reachs the metallic particle outside the circuit breaker by cooling and deionization before being discharged outside the circuit breaker.
In order to achieve the above object, the utility model discloses specifically adopt following technical scheme:
an arc extinguishing cover comprising:
the arc extinction cover cap body is provided with an opening on the bottom surface, and a main flow guide hole is arranged on the front surface of the arc extinction cover cap body;
the metal mesh plate slot is arranged at the front part of the arc extinction cover main body, and a sub-diversion hole is formed in the metal mesh plate slot;
and the metal screen plate is arranged in the metal screen plate slot.
The bottom of the arc-extinguishing cover cap is provided with an opening, the front of the arc-extinguishing cover cap is additionally provided with a metal screen plate, and a main flow guide hole and a sub flow guide hole are designed, so that the arc-extinguishing cover cap has excellent effects of filtering metal particles and eliminating ionization.
Preferably, the main diversion hole and the sub diversion hole are multiple. So design can prevent the metal mesh board roll-off on the one hand, and on the other hand makes the arc extinction shroud more stable.
Preferably, the sub-diversion holes are arranged corresponding to the main diversion hole. And is more beneficial to filtering metal particles and deionizing.
Preferably, the expanded metal sheet is multi-layered. The expanded metal sheet may be provided with one or more layers as required.
Preferably, the metal mesh plate is sealed by using a sealing strip after being inserted into the metal mesh plate slot. The purpose of the seal is to further prevent the escape of metal particles.
Preferably, the arc extinction shroud is a plurality of, a plurality of arc extinction shroud sets up side by side, and a plurality of arc extinction shroud pass through the arc extinction apron and fix. The design can solve the problem of metal particle escape of the multi-stage circuit breaker.
Preferably, the arc extinguishing cover plate is fixed on the arc extinguishing cover through a blind rivet. The self-plugging rivet is adopted to ensure that the clamping force of the connection is more uniform, and the fatigue resistance of the connection is improved.
Preferably, the left side surface and the right side surface of the arc extinguishing cover main body are respectively provided with corresponding installation guide and installation guide grooves, and the plurality of arc extinguishing covers are arranged side by side through the installation guide and installation guide grooves. When a plurality of arc extinguishing covers are provided, the installation guide and the installation guide groove are designed to ensure that the installation of the plurality of arc extinguishing covers is more accurate and convenient.
A circuit breaker comprising the arc extinguishing cover of any of the preceding claims.
Preferably, the circuit breaker comprises a main circuit outlet bar, an arc extinguishing chamber and an arc extinguishing cover which are arranged in sequence.
Advantageous effects
The bottom of the arc-extinguishing cover is provided with an opening, the front of the arc-extinguishing cover is additionally provided with a metal screen plate, and a main flow guide hole and a sub flow guide hole are designed, so that the arc-extinguishing cover has excellent effects of filtering metal particles and eliminating ionization; the expanded metal sheet has excellent gas permeability, but fine metal particles cannot pass through.
The main flow guide holes and the sub flow guide holes are multiple, so that the metal mesh plate can be prevented from sliding out, and the arc extinction cover is more stable;
the sub-diversion holes are arranged corresponding to the main diversion hole, so that metal particles can be filtered and deionization can be facilitated;
the purpose of the seal is to further prevent the escape of metal particles;
the self-plugging rivet is adopted, so that the clamping force of the connection is more uniform, and the fatigue resistance of the connection is improved;
the installation of a plurality of arc extinguishing covers is more accurate and convenient due to the design of the installation guide and the installation guide groove;
to sum up, the arc extinction shroud of the utility model has the excellent effects of filtering metal particles and deionizing.
Drawings
FIG. 1 is a block diagram of an arc extinguishing cover according to an embodiment of the present invention;
fig. 2 is a schematic view of the bottom structure of the arc extinguishing cover shown in fig. 1;
FIG. 3 is a schematic view of a plurality of arc suppression covers arranged side by side;
FIG. 4 is a schematic view of the installation of a plurality of arc extinguishing covers and arc extinguishing cover plates arranged side by side;
FIG. 5 is a schematic view of the installation of a plurality of arc extinguishing covers and arc extinguishing cover plates arranged side by side;
fig. 6 is an installation diagram of a plurality of arc-extinguishing covers arranged side by side in a circuit breaker;
fig. 7 is a block diagram of a circuit breaker having a plurality of arc extinguishing covers arranged side by side.
1-a circuit breaker; 2-main loop outlet row; 3-an arc extinguishing chamber; 4-arc extinction shroud; 5-side plate; 6-arc extinction cover plate; 7-sealing strips; 8-self-plugging rivets; 9-a metal mesh plate; 10-arc extinguishing cover main body; 1001-main pilot orifice; 1002-blind rivet mounting holes; 1003-installation guide; 1004-mounting a guide slot; 11-metal mesh plate slot; 1101-sub flow guide holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The present invention will be described in detail below with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.
As shown in fig. 1, a structure diagram of an arc extinguishing cover according to an embodiment of the present invention is shown, and fig. 2 is a schematic bottom view of the arc extinguishing cover, and as can be seen from the diagram, the arc extinguishing cover 4 includes an arc extinguishing cover main body 10, the bottom surface (fig. 1 view angle) of the arc extinguishing cover main body 10 has an opening, the front surface (fig. 1 view angle) of the arc extinguishing cover main body 10 has 6 main guiding holes 1001 with the same shape, a layer of metal mesh plate slot 11 is provided at the front portion of the arc extinguishing cover main body 10, 6 sub guiding holes 1101 are provided on the metal mesh plate slot 11, and the sub guiding holes 1101 and the main guiding holes 1001 are arranged in a one-to-one correspondence, where the correspondence means that the sub guiding holes 1101 and.
Of course, in other embodiments, the number of the sub-pilot holes 1101 and the number of the main pilot holes 1001 may be one or other different numbers, and the number of the sub-pilot holes 1101 and the number of the main pilot holes 1001 may be the same or different, and may not be in one-to-one correspondence, and may also be different in shape, and may also be other shapes, such as a circle.
As shown in fig. 1, the arc extinguishing cover main body 10 is further provided with mounting guides 1003 and mounting guide grooves 1004 on the left and right side surfaces thereof, respectively, and a blind rivet mounting hole 1002 is provided on the top surface of the arc extinguishing cover main body 10. As shown in fig. 2, the mounting guide 1003 is a trapezoidal convex strip, and the mounting guide slot 1004 is a trapezoidal concave strip matched with the mounting guide 1003.
Of course, the mounting guides 1003 and the mounting guide grooves 1004 on the left and right side surfaces of the arc extinguishing cover main body 10 may have other shapes, for example, the mounting guides 1003 may be a column having a droplet-shaped cross section, and the mounting guide grooves 1004 may be droplet-shaped groove strips that fit the mounting guides 1003.
As shown in fig. 3, in order to assemble the arc extinguishing covers 4, it can be seen that the arc extinguishing covers 4 further include expanded metal sheets 9, and when it is necessary to arrange the arc extinguishing covers 4 side by side, the expanded metal sheets 9 are first inserted into the expanded metal sheet insertion grooves 11, the expanded metal sheet insertion grooves 11 are then sealed with the seal tapes 7, and then the installation guides 1003 are inserted into the installation guide grooves 1004, thereby completing the assembly of the arc extinguishing covers 4. The purpose of the sealing strip 7 is to further prevent metal particles from escaping.
As shown in fig. 4, a plurality of arc extinguishing covers 4 arranged side by side are schematically mounted on the arc extinguishing cover plate 6. It can be seen that the arc extinction cover plate 6 is a whole technological plate, the periphery of the arc extinction cover plate is provided with bends, the arc extinction cover plate 6 covers a plurality of arc extinction cover covers 4 which are assembled, and then the self-plugging rivet 8 is used for matching with the self-plugging rivet mounting hole 1002 to fix the arc extinction cover plate 6 and the arc extinction cover covers 4. After assembly is complete as shown in fig. 5.
As shown in fig. 6, the installation schematic diagram of the circuit breaker 1 is provided with a plurality of arc-extinguishing covers 4 arranged side by side, wherein the circuit breaker 1 comprises side plates 5 on two sides of the circuit breaker 1, the circuit breaker 1 further comprises a main circuit outlet row 2 and an arc-extinguishing chamber 3 which are sequentially arranged from bottom to top, and then the assembled arc-extinguishing covers 4 are placed on the arc-extinguishing chamber 3 and fixed on the side plates 5 through screws. After assembly is complete, as shown in fig. 7.
The utility model discloses a design makes the arc extinction shroud have good filtration metallic particle and the effect of deionization.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. An arc extinguishing cover, comprising:
an arc extinguishing cover main body (10), wherein the bottom surface of the arc extinguishing cover main body (10) is provided with an opening, and the front surface of the arc extinguishing cover main body (10) is provided with a main flow guide hole (1001);
the arc extinction cover cap comprises a metal mesh plate slot (11) which is arranged at the front part of the arc extinction cover cap main body (10), wherein a sub-diversion hole (1101) is formed in the metal mesh plate slot (11);
and the metal mesh plate (9) is arranged in the metal mesh plate slot (11).
2. The arc extinguishing cover according to claim 1, characterized in that the main pilot hole (1001) and the sub and sub pilot holes (1101) are plural.
3. The arc extinguishing cover according to claim 1, characterized in that the sub-deflector hole (1101) is provided in correspondence with a main deflector hole (1001).
4. Arc extinguishing cover according to claim 1, characterized in that the expanded metal sheet (9) is multi-layered.
5. An arc extinguishing cover according to claim 1, characterized in that the expanded metal (9) is sealed with a sealing strip (7) after being inserted into the expanded metal insertion slot (11).
6. An arc extinction cover according to any one of claims 1 to 5, wherein there are a plurality of arc extinction covers arranged side by side, the plurality of arc extinction covers being fixed by an arc extinction cover plate (6).
7. An arc extinguishing cover according to claim 6, characterized in that the arc extinguishing cover plate (6) is fixed to the arc extinguishing cover by blind rivets (8).
8. An arc extinguishing cover according to claim 6, characterized in that the left and right side surfaces of the arc extinguishing cover main body (10) are provided with corresponding mounting guides (1003) and mounting guide grooves (1004), respectively, and a plurality of arc extinguishing covers are arranged side by side through the mounting guides (1003) and the mounting guide grooves (1004).
9. A circuit breaker comprising the arc extinguishing cover of any one of claims 1 to 8.
10. The circuit breaker according to claim 9, characterized in that it comprises, in succession, a main circuit outlet row (2), an arc extinguishing chamber (3) and an arc extinguishing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022718318.7U CN213483692U (en) | 2020-11-20 | 2020-11-20 | Arc extinction shroud and have circuit breaker of this arc extinction shroud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022718318.7U CN213483692U (en) | 2020-11-20 | 2020-11-20 | Arc extinction shroud and have circuit breaker of this arc extinction shroud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213483692U true CN213483692U (en) | 2021-06-18 |
Family
ID=76356353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022718318.7U Active CN213483692U (en) | 2020-11-20 | 2020-11-20 | Arc extinction shroud and have circuit breaker of this arc extinction shroud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213483692U (en) |
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2020
- 2020-11-20 CN CN202022718318.7U patent/CN213483692U/en active Active
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