CN215869260U

CN215869260U - Dustproof arc extinguishing chamber

Info

Publication number: CN215869260U
Application number: CN202122347577.8U
Authority: CN
Inventors: 杨金
Original assignee: Yueqing Zili Electric Appliance Co ltd
Current assignee: Yueqing Zili Electric Appliance Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-18
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses an anti-dust arc-extinguishing cover which comprises a cover body, wherein the cover body comprises a top surface and a side wall, the side wall is provided with a fixing hole, and an arc-extinguishing sheet is embedded in the fixing hole; the method is characterized in that: the outer edge of the top surface is fixedly connected with a dustproof device, the height of the dustproof device is lower than the center of the top surface, and the dustproof device and the top surface form an eave structure; dustproof device includes shell and dwang, the dwang rotates with the shell to be connected, dwang fixedly connected with dust adsorbed layer. According to the dustproof arc-extinguishing cover, the dustproof device is arranged on the outer edge of the top surface of the cover body, and the dustproof device and the top surface form an eave structure, so that dust is effectively shielded in the arc-extinguishing cover, the activated carbon layer is arranged in the dustproof device, dust in air can be effectively adsorbed, and the activated carbon layer can be rotated to change the surface through the rotating rod, so that the activated carbon can be fully utilized.

Description

Dustproof arc extinguishing chamber

Technical Field

The utility model relates to the technical field of arc extinguishing equipment, in particular to an arc extinguishing cover capable of preventing dust.

Background

The arc extinguishing cover is a common device which enables an electric arc to be contacted with a solid medium to reduce the temperature of the electric arc, so that the electric arc is extinguished more quickly, the surface of the arc extinguishing cover on the existing circuit breaker is burnt under the action of the high temperature of the electric arc to form a carbon conductive layer, which is very unfavorable for arc extinguishing and needs to be eliminated in time by using a rasp; meanwhile, the interior of the arc-extinguishing cover body after long-term use is easy to be contaminated by dust, the dust is accumulated for a long time in a large amount to easily influence the normal work of the arc-extinguishing cover, and the dust is too much when serious, and once being wetted, the faults of short circuit, electric leakage, poor contact and the like are easily caused.

The existing arc extinguishing cover is not provided with a dustproof structure, the arc extinguishing chamber and the moving and static contacts have no dustproof and moistureproof functions, and dust easily enters the arc extinguishing chamber. Therefore, there is a need to provide an arc chute that is dust proof to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an arc extinguishing chamber capable of preventing dust, and the specific technical scheme is as follows:

an arc-extinguishing cover capable of preventing dust comprises a cover body, wherein the cover body comprises a top surface and a side wall, the side wall is provided with a fixing hole, and an arc-extinguishing sheet is embedded in the fixing hole; the method is characterized in that: the outer edge of the top surface is fixedly connected with a dustproof device, the height of the dustproof device is lower than the center of the top surface, and the dustproof device and the top surface form an eave structure; dustproof device includes shell and dwang, the dwang rotates with the shell to be connected, dwang fixedly connected with dust adsorbed layer.

As an improvement of the technical scheme, the area of the dust adsorption layer is smaller than or equal to the area enclosed by the shell, and the dust adsorption layer is a blocky activated carbon layer.

As an improvement of the technical scheme, the dustproof device further comprises a supporting plate, a sliding groove and a baffle plate, the sliding groove is formed in the bottom of the shell and is connected with the shell in a sliding mode through the sliding groove, and the shell, the supporting plate, the sliding groove and the baffle plate form a semi-closed structure.

As an improvement of the technical scheme, the dustproof device is symmetrically arranged around the center of the top surface.

As an improvement of the technical scheme, the surface of the dust adsorption layer is in the shape of a ridge.

Compared with the prior art, the utility model has the following technical effects:

according to the dustproof arc-extinguishing cover, the dustproof device is arranged on the outer edge of the top surface of the cover body, and the dustproof device and the top surface form an eave structure, so that dust is effectively shielded in the arc-extinguishing cover, the activated carbon layer is arranged in the dustproof device, dust in air can be effectively adsorbed, and the activated carbon layer can be rotated to change the surface through the rotating rod, so that the activated carbon can be fully utilized.

Drawings

FIG. 1 is a schematic structural view of an arc chute of the present invention;

FIG. 2 is a top view of the dust guard of the present invention;

FIG. 3 is a front view of the dust guard of the present invention;

FIG. 4 is a side view of the dust-proof device of the present invention

Reference numerals: 10-cover body, 20-dust keeper, 11-top surface, 12-lateral wall, 21-shell, 22-dwang, 23-dust adsorbed layer, 24-backup pad, 25-spout, 26-baffle, 121-fixed orifices.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1 and 2, the arc-extinguishing chamber capable of preventing dust in the utility model comprises a chamber body 10, wherein the chamber body 10 comprises a top surface 11 and a side wall 12, the side wall 12 is provided with a fixing hole 121, and an arc-extinguishing sheet is embedded in the fixing hole 121; the outer edge of the top surface 11 is fixedly connected with a dustproof device 20, the height of the dustproof device 20 is lower than that of the center of the top surface 11, and the dustproof device 20 and the top surface 11 form an eave structure; dustproof device 20 includes shell 21 and dwang 22, dwang 22 rotates with shell 21 to be connected, dwang 22 fixedly connected with dust adsorbed layer 23.

As shown in fig. 2, the area of the dust adsorption layer 23 is smaller than or equal to the area enclosed by the housing 21, and the dust adsorption layer 23 is a block-shaped activated carbon layer. The area of the activated carbon layer is smaller than the area enclosed by the shell 21, so that the activated carbon can rotate freely through the rotating rod 22, and the situation that the activated carbon is clamped at a certain position of the shell 21 cannot occur.

As shown in fig. 1, 2, 3, and 4, the dust-proof device 20 further includes a supporting plate 24, a sliding groove 25, and a baffle 26, the sliding groove 25 is disposed at the bottom of the housing 21, the supporting plate 24 is slidably connected to the housing through the sliding groove 25, and the housing 21, the supporting plate 24, the sliding groove 25, and the baffle 26 form a semi-closed structure. Through the fixed dust adsorbed layer 23 that backup pad 24 can be fine, make it can not rock at will, during later stage clearance, the backup pad 24 is taken off to the accessible, rotates dwang 22 and drives dust adsorbed layer 23 and trade the face to can carry out the dust once more and adsorb, the effectual activated carbon layer of having avoided utilizes situation not in place. And the cornice structure effectively shields the arc extinguishing pieces, so that dust is not easy to fall in the arc extinguishing cover, and the potential safety hazard caused by heat dissipation influence due to dust accumulation is avoided.

As shown in fig. 1, the dust-proof device 20 is arranged symmetrically about the center of the top surface 11, and the size and weight are nearly the same due to the symmetrical arrangement, so that the overall balance of the arc-extinguishing chamber is not affected; and because the cornice structure has the eaves angle, when dismantling, the arm of force increases, more convenient dismantlement installation. Simultaneously, the cornice structure still makes the dust in the air be restricted in the eaves angle radian to a certain extent, makes the efficiency that the active carbon layer adsorbed the dust higher.

The surface of the dust adsorption layer 23 is ridge-shaped. Through piling up into mountain ridge shape with activated carbon layer within a certain range, increased the area of contact of activated carbon with the air to make the effect of adsorbing the dust better.

The dustproof device 20 is made of pottery clay, asbestos cement or arc-resistant plastic materials, and has a good arc extinguishing effect.

The specific adjusting principle of the dustproof arc-extinguishing chamber is as follows:

in the use, the dust that falls on the top surface falls into activated carbon layer surface under the influence of gravity and is adsorbed by the active carbon, and the dust of escaping partly can be restricted in eaves angle radian scope, is finally adsorbed by the active carbon.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An arc-extinguishing shield capable of preventing dust comprises a shield body (10), wherein the shield body (10) comprises a top surface (11) and a side wall (12), the side wall (12) is provided with a fixing hole (121), and an arc-extinguishing sheet is embedded in the fixing hole (121); the method is characterized in that: the outer edge of the top surface (11) is fixedly connected with a dustproof device (20), the height of the dustproof device (20) is lower than that of the center of the top surface (11), and the dustproof device (20) and the top surface (11) form an eave structure; dustproof device (20) include shell (21) and dwang (22), dwang (22) are rotated with shell (21) and are connected, dwang (22) fixedly connected with dust adsorbed layer (23).

2. An anti-dust arc chute according to claim 1 wherein: the area of the dust adsorption layer (23) is smaller than or equal to the area enclosed by the shell (21), and the dust adsorption layer (23) is a blocky activated carbon layer.

3. An anti-dust arc chute according to claim 1 wherein: dustproof device (20) still include backup pad (24), spout (25) and baffle (26), spout (25) are seted up in shell (21) bottom, backup pad (24) are through spout (25) and shell sliding connection, shell (21), backup pad (24), spout (25) and baffle (26) constitute semi-enclosed construction.

4. An anti-dust arc chute according to claim 1 wherein: the dust-proof device (20) is arranged in a central symmetry manner relative to the top surface (11).

5. An anti-dust arc chute according to claim 1 or 2 wherein: the surface of the dust adsorption layer (23) is ridge-shaped.