Arc extinguishing cover structure convenient to disassemble
By introducing mounting plates, assembly blocks, insertion slots, and moisture-absorbing components into the arc-extinguishing hood structure, the problems of inconvenient disassembly of the arc-extinguishing hood and electric arc in humid environments are solved, achieving convenient disassembly and efficient dehumidification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QINDA ELECTRIC TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
Smart Images

Figure CN224501740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, specifically to an arc-extinguishing shroud structure that is easy to disassemble. Background Technology
[0002] An arc extinguishing chamber is a commonly used device that brings the electric arc into contact with a solid medium, reducing the arc temperature and thus accelerating the arc's extinction. It is frequently used in medium- and low-load switchgear.
[0003] The utility model patent with publication number CN209045474U discloses an arc extinguishing cover. The utility model has 13 arc extinguishing grids, which can divide the electric arc generated when the moving and stationary contacts are broken into more short electric arcs for extinguishing. The voltage between each short electric arc is smaller, the heat generated is less, and it is not easy to burn out the arc extinguishing cover.
[0004] However, in the existing arc-extinguishing shroud structure, when the arc-extinguishing grid is damaged and needs to be replaced, it is inconvenient to disassemble the arc-extinguishing grid. The process of installing and replacing the arc-extinguishing grid is also cumbersome and prone to damage, which does not make it easy to improve the convenience of disassembly. In addition, in humid environments, moisture can cause the arc to extend or reignite, which is not conducive to improving the arc-extinguishing efficiency. Utility Model Content
[0005] This invention provides an arc-extinguishing cover structure that is easy to disassemble, and has the advantages of easy disassembly and moisture absorption, so as to solve the problems of existing structures that are not easy to improve the convenience of disassembly and the arc-extinguishing efficiency.
[0006] To achieve ease of disassembly and moisture absorption, this utility model provides the following technical solution: an easily disassembled arc-extinguishing cover structure, comprising a first side plate, a second side plate, and an arc-extinguishing grid, and further comprising:
[0007] A mounting plate is provided on one side of the bottom surface of the first side plate, and a number of assembly blocks are fixedly connected to one side of the mounting plate.
[0008] The mounting plate has sliding grooves on both sides of its bottom surface. A moisture-absorbing component is engaged inside the sliding groove. The moisture-absorbing component includes a sliding strip, a ceramic box, a stainless steel mesh, and a color-changing silica gel desiccant.
[0009] As a preferred embodiment of this utility model, an upper locking block and a lower locking block are fixed on both sides of the arc-extinguishing grid plate, and a groove is formed in the middle of the surface of the arc-extinguishing grid plate.
[0010] As a preferred technical solution of this utility model, the surfaces of the first side plate and the second side plate are provided with a plurality of upper and lower slots.
[0011] In a preferred embodiment of this utility model, the upper card slot is adapted to the upper card block, the lower card slot is adapted to the lower card block, and the number of the upper card slot and the lower card slot is equal to the number of the upper card block and the lower card block.
[0012] As a preferred embodiment of this utility model, a plurality of insertion slots are provided on the lower side of one side of the second side plate, and the insertion slots are adapted to the assembly plug.
[0013] As a preferred embodiment of this utility model, the surface of the mounting plate is provided with through holes, and the number of through holes is several.
[0014] As a preferred embodiment of this utility model, the moisture-absorbing component includes a sliding strip that is snapped into the inside of the sliding groove, and a ceramic box is fixedly connected to the bottom surface of the sliding strip.
[0015] As a preferred embodiment of this utility model, the ceramic box is provided with a stainless steel mesh inside, and the stainless steel mesh is encapsulated with a color-changing silicone desiccant.
[0016] Compared with the prior art, this utility model provides an arc-extinguishing shroud structure that is easy to disassemble, and has the following beneficial effects:
[0017] This easily disassembled arc-extinguishing cover structure, through the setting of mounting plates, assembly blocks, and insertion slots, enables convenient disassembly of the arc-extinguishing cover. During use, the arc-extinguishing grid is installed between the first side plate and the second side plate. If the arc-extinguishing grid is damaged, the second side plate can be removed from the assembly block for easy replacement of the arc-extinguishing grid. This avoids the difficulty in disassembling the arc-extinguishing cover and replacing the arc-extinguishing grid when it is damaged, thus improving the ease of disassembly.
[0018] This easily detachable arc-extinguishing hood structure can achieve drying and dehumidification by setting up a moisture-absorbing component. During use, the color-changing silica gel desiccant absorbs the moisture generated inside the arc-extinguishing hood. Because the color-changing silica gel desiccant has a color indicator inside, the moisture absorption level will gradually change from blue to pink, and it can be replaced, thereby reducing the humidity inside the arc-extinguishing hood and preventing the arc from extending or reigniting due to moisture in a humid environment, which helps to improve the arc-extinguishing efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the moisture-absorbing component structure of this utility model.
[0023] In the diagram: 1. First side plate; 2. Second side plate; 3. Arc extinguishing grid; 4. Mounting plate; 5. Assembly plug; 6. Slide groove; 7. Moisture absorption component; 701. Sliding strip; 702. Ceramic box; 703. Stainless steel mesh; 704. Color-changing silica gel desiccant; 8. Upper locking block; 9. Lower locking block; 10. Groove; 11. Upper locking slot; 12. Lower locking slot; 13. Insertion slot; 14. Through hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-4 This utility model discloses an arc-extinguishing cover structure that is easy to disassemble, including a first side plate 1, a second side plate 2, and an arc-extinguishing grid plate 3, and further including:
[0026] A mounting plate 4 is provided on one side of the bottom surface of the first side plate 1, and a number of assembly blocks 5 are fixedly connected to one side of the mounting plate 4.
[0027] The sliding grooves 6 are set on both sides of the bottom surface of the mounting plate 4. The moisture-absorbing components 7 are snapped into the inside of the sliding grooves 6. The moisture-absorbing components 7 include a sliding strip 701, a ceramic box 702, a stainless steel mesh 703, and a color-changing silica gel desiccant 704.
[0028] Specifically, an upper locking block 8 and a lower locking block 9 are fixed on both sides of the arc-extinguishing grid plate 3, and a groove 10 is provided in the middle of the surface of the arc-extinguishing grid plate 3.
[0029] In this embodiment, during use, the arc-extinguishing grid plate 3 is installed between the first side plate 1 and the second side plate 2. If the arc-extinguishing grid plate 3 is damaged, the second side plate 2 can be removed from the assembly plug 5 to facilitate the replacement of the arc-extinguishing grid plate 3.
[0030] Specifically, the surfaces of the first side plate 1 and the second side plate 2 are each provided with a number of upper slots 11 and lower slots 12.
[0031] In this embodiment, the upper slot 11 and the lower slot 12 facilitate the installation of the arc-extinguishing grid plate 3.
[0032] Specifically, the upper card slot 11 is adapted to the upper card block 8, the lower card slot 12 is adapted to the lower card block 9, and the number of upper card slots 11 and lower card slots 12 is equal to the number of upper card blocks 8 and lower card blocks 9.
[0033] In this embodiment, the upper locking block 8 of the arc-extinguishing grid plate 3 is inserted into the upper locking slot 11, and the lower locking block 9 is inserted into the lower locking slot 12.
[0034] Specifically, several insertion slots 13 are provided on the lower side of one side of the second side plate 2, and the insertion slots 13 are adapted to the assembly plug 5.
[0035] In this embodiment, the insertion slot 13 facilitates the assembly of the arc-extinguishing shield structure.
[0036] Specifically, the surface of the mounting plate 4 is provided with through holes 14, and the number of through holes 14 is several.
[0037] In this embodiment, through the through hole 14, airflow passes through the through hole 14, allowing the color-changing silica gel desiccant 704 to absorb moisture.
[0038] Specifically, the moisture-absorbing component 7 includes a sliding strip 701 that is snapped into the slide groove 6, and a ceramic box 702 is fixedly connected to the bottom surface of the sliding strip 701; a stainless steel mesh 703 is provided inside the ceramic box 702, and a color-changing silicone desiccant 704 is encapsulated inside the stainless steel mesh 703.
[0039] In this embodiment, when in use, the color-changing silica gel desiccant 704 absorbs the moisture generated inside the arc extinguishing chamber. Because the color-changing silica gel desiccant 704 has a color indicator inside, the degree of moisture absorption will gradually change from blue to pink, and it can be replaced.
[0040] The working principle and usage process of this utility model are as follows: The arc-extinguishing grid plate 3 is installed between the first side plate 1 and the second side plate 2. The upper locking block 8 of the arc-extinguishing grid plate 3 is inserted into the upper locking groove 11, and the lower locking block 9 is inserted into the lower locking groove 12. The sliding strip 701 is installed inside the sliding groove 6. The color-changing silica gel desiccant 704 absorbs the moisture generated inside the arc-extinguishing hood. Because the color-changing silica gel desiccant 704 has a color indicator inside, the degree of moisture absorption will gradually change from blue to pink. Then, the ceramic box 702 is removed and the color-changing silica gel desiccant 704 inside is replaced.
[0041] In summary, this easily disassembled arc-extinguishing cover structure, through the installation plate 4, assembly block 5 and insertion slot 13, can achieve the purpose of easy disassembly of the arc-extinguishing cover. In use, the arc-extinguishing grid 3 is installed between the first side plate 1 and the second side plate 2. If the arc-extinguishing grid 3 is damaged, the second side plate 2 can be removed from the assembly block 5 to facilitate the replacement of the arc-extinguishing grid 3. This avoids the difficulty in disassembling the arc-extinguishing cover and replacing the arc-extinguishing grid 3 when the arc-extinguishing grid 3 is damaged, and helps to improve the convenience of disassembly.
[0042] The purpose of drying and dehumidification can be achieved by setting the moisture absorption component 7. During use, the color-changing silica gel desiccant 704 absorbs the moisture generated inside the arc extinguishing chamber. Because the color-changing silica gel desiccant 704 has a color indicator inside, the moisture absorption level will gradually change from blue to pink. It can be replaced, thereby reducing the humidity inside the arc extinguishing chamber and avoiding the arc extension or reignition caused by moisture in a humid environment, which helps to improve the arc extinguishing efficiency.
[0043] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An easily detachable arc-extinguishing shield structure, comprising a first side plate (1), a second side plate (2), and an arc-extinguishing grid plate (3), characterized in that, Also includes: A mounting plate (4) is provided on one side of the bottom surface of the first side plate (1), and a plurality of assembly plugs (5) are fixedly connected to one side of the mounting plate (4). The sliding grooves (6) are set on both sides of the bottom surface of the mounting plate (4). The sliding grooves (6) are fitted with moisture-absorbing components (7). The moisture-absorbing components (7) include sliding strips (701), ceramic boxes (702), stainless steel mesh (703) and color-changing silica gel desiccant (704).
2. The arc-extinguishing cover structure that is easy to disassemble according to claim 1, characterized in that: The arc-extinguishing grid plate (3) has an upper locking block (8) and a lower locking block (9) fixed on both sides, and a groove (10) is provided in the middle of the surface of the arc-extinguishing grid plate (3).
3. The arc-extinguishing cover structure that is easy to disassemble according to claim 1, characterized in that: The surfaces of the first side plate (1) and the second side plate (2) are provided with a number of upper slots (11) and lower slots (12).
4. The arc-extinguishing cover structure that is easy to disassemble according to claim 3, characterized in that: The upper card slot (11) is adapted to the upper card block (8), the lower card slot (12) is adapted to the lower card block (9), and the number of the upper card slot (11) and the lower card slot (12) is equal to the number of the upper card block (8) and the lower card block (9).
5. The arc-extinguishing cover structure that is easy to disassemble according to claim 1, characterized in that: A plurality of insertion slots (13) are provided on the lower side of one side of the second side plate (2), and the insertion slots (13) are adapted to the assembly plug (5).
6. The arc-extinguishing cover structure that is easy to disassemble according to claim 1, characterized in that: The surface of the mounting plate (4) is provided with through holes (14), and the number of through holes (14) is several.
7. The arc-extinguishing cover structure that is easy to disassemble according to claim 1, characterized in that: The moisture-absorbing component (7) includes a sliding strip (701) that is snapped into the inside of the slide groove (6), and a ceramic box (702) is fixedly connected to the bottom surface of the sliding strip (701).
8. The arc-extinguishing cover structure that is easy to disassemble according to claim 7, characterized in that: The ceramic box (702) is provided with a stainless steel mesh (703) inside, and the stainless steel mesh (703) is encapsulated with a color-changing silicone desiccant (704).