Arc extinguishing device with three symmetrical air passages
Through the three-airway symmetrical arc extinguishing device, combined with multiple structures and magnetic blowing arc extinguishing, the problem of poor arc extinguishing effect of a single airway is solved, and efficient arc extinguishing and contact protection of the arc is achieved.
Patent Information
- Application Number
- CN202422142503.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, a single airway has poor effect on arc extinguishing the arc, making it difficult to effectively reduce the burn damage of the arc to the contacts and limit the space for arc expansion.
The arc extinguishing device with three airway symmetrical directions is adopted, including two side plates, air-producing parts, first and second arc extinguishing structures, arc extinguishing structures, fixed seats and arc extinguishing plates. Through the combination of multiple structures and magnetic blowing arc extinguishing, the arc is divided and arc extinguishing is achieved.
It realizes efficient arc extinguishing of the arc, reduces the burning of the arc to the contacts and improves the arc extinguishing effect.
Smart Images
Figure CN223052012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of arc extinguishing equipment, in particular to an arc extinguishing device with a symmetrically arranged three-airway structure. Background Art
[0002] When the power supply voltage is 1000V and the breaking current is above 630A, in order to reduce the burning of the contact by the arc and limit the space for the arc to expand, measures to enhance the arc extinguishing ability are required. The device used for this purpose is called arc extinguishing equipment.
[0003] In the prior art, generally only a single airway is used to extinguish the arc, and the arc extinguishing effect is poor. Therefore, we provide an arc extinguishing device with a symmetrically arranged three-airway structure. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is how to achieve efficient arc extinguishing, and an arc extinguishing device with a symmetrically arranged three-airway structure is provided.
[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0006] An arc extinguishing device with a symmetrically arranged three-airway structure includes: two side plates, two gas generating components are arranged between the two side plates, a first arc extinguishing structure is arranged above the two gas generating components, two second arc extinguishing structures are symmetrically arranged on both sides of the first arc extinguishing structure, an arc extinguishing structure is arranged above the first arc extinguishing structure, the upper parts of the first arc extinguishing structure and the two second arc extinguishing structures and the arc extinguishing structure are covered with a fixing seat, the fixing seat is cylindrical, and an arc extinguishing plate is covered above it.
[0007] During opening, an arc will be generated between the two gas generating components. Then, a part of the arc will pass through the first arc extinguishing structure, the arc extinguishing structure, and the arc extinguishing plate in sequence for arc extinguishing. Another part of the arc passes through the second arc extinguishing structure on one side and the arc extinguishing plate for arc extinguishing. Still another part of the arc passes through the second arc extinguishing structure on the other side and the arc extinguishing plate for arc extinguishing. Thus, three-airway symmetric arc extinguishing of the arc can be achieved, and efficient arc extinguishing can be realized.
[0008] Further, the two side plates are vertically arranged and parallel to each other. The symmetry planes of the two second arc extinguishing structures are vertically arranged and perpendicular to the two side plates. The second arc extinguishing structure includes a plurality of arc extinguishing grid plates, a support plate, a fitting plate, four partition plates, a plurality of first arc extinguishing holes, and a support seat. The plurality of arc extinguishing grid plates are parallel and spaced apart from each other, and are parallel to the symmetry planes of the two second arc extinguishing structures. The lower parts of the plurality of arc extinguishing grid plates are respectively connected to the tops of the two gas generating parts. The fitting plate is arranged above the plurality of arc extinguishing grid plates and is in close contact with the side surface of the first arc extinguishing structure. The support plate is horizontally arranged above the plurality of arc extinguishing grid plates, on the side of the fitting plate away from the first arc extinguishing structure, and is fixedly connected to the fitting plate. The four partition plates are parallel and spaced apart from each other, and are parallel to the two side plates. The four partition plates are arranged above the support plate, outside the fitting plate, and are located within the fixed seat. The four partition plates are fixedly connected to the support plate and the fitting plate. The four partition plates divide two side cavities and a central cavity. The two outer partition plates are respectively connected to the two side plates by screws. The plurality of first arc extinguishing holes are arranged on the support plate, communicating up and down and only communicating with the two side cavities respectively. The support seat is arranged outside the support plate and is fixedly connected to the four partition plates. The support seat is connected to the fixed seat by bolts.
[0009] The electric arc passes through a plurality of arc extinguishing grid plates and a plurality of first arc extinguishing holes and then is divided into two parts of the electric arc, and then passes through the two side cavities and the arc extinguishing plate respectively for arc extinguishing, so that the electric arc can be divided again to achieve efficient arc extinguishing.
[0010] Further, the second arc extinguishing structure includes a plurality of partition blocks. The plurality of partition blocks are respectively arranged between the plurality of arc extinguishing grid plates and are fixedly connected to the bottom surface of the support plate.
[0011] By arranging a plurality of partition blocks, the plurality of arc extinguishing grid plates can be stably spaced apart.
[0012] Further, the lower parts of the plurality of arc extinguishing grid plates are respectively inserted into the tops of the two gas generating parts.
[0013] The lower parts of the plurality of arc extinguishing grid plates are respectively inserted into the tops of the two gas generating parts, which is convenient for the disassembly, assembly and maintenance of the plurality of arc extinguishing grid plates.
[0014] Further, two first magnetic conduction plates are arranged at the lower part of the first arc extinguishing structure. The two first magnetic conduction plates are parallel to each other, vertically arranged, and perpendicular to the two side plates. The two first magnetic conduction plates are arranged on both sides of the air inlet of the first arc extinguishing structure.
[0015] The two first magnetic conduction plates can blow out the electric arc magnetically to achieve efficient arc extinguishing.
[0016] Further, the two side plates and the two gas generating parts are connected by screws.
[0017] By connecting with screws, it is convenient for the disassembly, assembly and maintenance of the two gas generating parts.
[0018] Further, the arc extinguishing structure includes an anti-breakdown member, a first wire mesh, and a second wire mesh. The anti-breakdown member is box-shaped, disposed within the fixed seat, above the first arc extinguishing structure, and covering the air outlet of the first arc extinguishing structure. The anti-breakdown member is connected to the first arc extinguishing structure. A number of second arc extinguishing holes are provided at the bottom of the anti-breakdown member, and the number of second arc extinguishing holes communicates up and down. The first wire mesh is horizontally disposed within the anti-breakdown member. The second wire mesh is disposed within the anti-breakdown member, above the first wire mesh.
[0019] The electric arc will sequentially pass between two first magnetic conduction plates, the first arc extinguishing structure, the anti-breakdown member, the first wire mesh, the second wire mesh, and the arc extinguishing plate for arc extinguishing. By providing the first wire mesh and the second wire mesh, efficient arc extinguishing can be achieved.
[0020] Further, the aperture of the second wire mesh is larger than that of the first wire mesh.
[0021] Further, it includes an arc ignition piece and a second magnetic conduction plate. The arc ignition piece is disposed on one side of a number of arc extinguishing grid pieces and is in close contact with the outermost arc extinguishing grid piece. The lower part of the arc ignition piece is bent inward below a number of arc extinguishing grid pieces, and the arc ignition piece is clamped with two gas generating parts. The second magnetic conduction plate is fixed to the bottom surface of the arc ignition piece.
[0022] The first magnetic conduction plate and the second magnetic conduction plate perform magnetic blow arc extinguishing on the electric arc, thereby achieving efficient arc extinguishing. By providing the arc ignition piece, the electric arc can be guided.
[0023] Further, the arc extinguishing grid pieces, the arc extinguishing plate, the arc ignition piece, the first magnetic conduction plate, and the second magnetic conduction plate are made of ferromagnetic materials. The fixed seat, the anti-breakdown member, the support seat, and the gas generating parts are made of DMC materials. The first wire mesh and the second wire mesh are stainless steel woven meshes. The side plate is a melamine gas generating material. The partition block, the fitting plate, the support plate, and the partition plate are made of nylon materials.
[0024] The beneficial effects of the present utility model:
[0025] 1. When the switch is opened, an electric arc will be generated between two gas generating parts. Then, a part of the electric arc will sequentially pass through the first arc extinguishing structure, the arc extinguishing structure, and the arc extinguishing plate for arc extinguishing. Another part of the electric arc passes through the second arc extinguishing structure and the arc extinguishing plate on one side for arc extinguishing. Still another part of the electric arc passes through the second arc extinguishing structure and the arc extinguishing plate on the other side for arc extinguishing. Thereby, symmetrical arc extinguishing of the electric arc in three air channels can be achieved, and efficient arc extinguishing can be realized.
[0026] 2. The electric arc passes through a number of arc extinguishing grid pieces and a number of first arc extinguishing holes and then is divided into two parts of the electric arc, and then respectively passes through two side cavities and the arc extinguishing plate for arc extinguishing, thereby being able to divide the electric arc again and realizing efficient arc extinguishing.
[0027] 3. The two first magnetic conduction plates can magnetically blow out the arc, and the first magnetic conduction plate and the second magnetic conduction plate magnetically blow out the arc, thereby achieving efficient arc extinguishing. Brief Description of the Drawings
[0028] Figure 1 is the overall schematic diagram of the present utility model;
[0029] Figure 2 is the schematic cross-sectional view of the middle part of the present utility model;
[0030] Figure 3 is the schematic cross-sectional view of the side part of the present utility model.
[0031] Description of the reference numerals: 1. Side plate; 2. Gas generating part; 3. Second magnetic conduction plate; 4. Arc initiating piece; 5. Support seat; 6. Fixed seat; 7. Arc extinguishing plate; 8. Arc extinguishing grid piece; 9. Partition block; 10. Support plate; 11. Fitting plate; 12. Partition plate; 13. Anti-breakdown piece; 14. First wire mesh; 15. Second wire mesh; 16. First arc extinguishing structure; 17. First arc extinguishing hole; 18. First magnetic conduction plate. Detailed Embodiment
[0032] The concept and the technical effects generated by the present utility model will be clearly and completely described below in conjunction with the embodiments to fully understand the purpose, features and effects of the present utility model.
[0033] As Figures 1-3 shown, an arc extinguishing device with a symmetrical three-airway direction includes: two side plates 1, two gas generating parts 2 are arranged between the two side plates 1, a first arc extinguishing structure 16 is arranged above the two gas generating parts 2, two second arc extinguishing structures are symmetrically arranged on both sides of the first arc extinguishing structure 16, an arc extinguishing structure is arranged above the first arc extinguishing structure 16, a fixed seat 6 is arranged outside the upper parts of the first arc extinguishing structure 16 and the two second arc extinguishing structures and the arc extinguishing structure, the fixed seat 6 is cylindrical, and an arc extinguishing plate 7 is covered above it.
[0034] When the switch is opened, an arc will be generated between the two gas generating parts 2. Then, a part of the arc will be extinguished by passing through the first arc extinguishing structure 16, the arc extinguishing structure and the arc extinguishing plate 7 in sequence. Another part of the arc will be extinguished by passing through the second arc extinguishing structure on one side and the arc extinguishing plate 7. Still another part of the arc will be extinguished by passing through the second arc extinguishing structure on the other side and the arc extinguishing plate 7. Thus, symmetrical three-airway arc extinguishing of the arc can be achieved, and efficient arc extinguishing can be realized.
[0035] The two side plates 1 are vertically arranged and parallel to each other. The symmetry planes of the two second arc extinguishing structures are vertically arranged and perpendicular to the two side plates 1. The second arc extinguishing structure includes a plurality of arc extinguishing grid plates 8, a support plate 10, a fitting plate 11, four partition plates 12, a plurality of first arc extinguishing holes 17, and a support seat 5. The plurality of arc extinguishing grid plates 8 are parallel to each other and arranged at intervals, and are parallel to the symmetry plane of the two second arc extinguishing structures. The lower parts of the plurality of arc extinguishing grid plates 8 are respectively connected to the tops of the two gas generating parts 2. The fitting plate 11 is arranged above the plurality of arc extinguishing grid plates 8 and is in close contact with the side surface of the first arc extinguishing structure 16. The support plate 10 is horizontally arranged above the plurality of arc extinguishing grid plates 8, on the side of the fitting plate 11 away from the first arc extinguishing structure 16, and is fixedly connected to the fitting plate 11. The four partition plates 12 are parallel to each other and arranged at intervals, and are parallel to the two side plates 1. The four partition plates 12 are arranged above the support plate 10, outside the fitting plate 11, and are located within the fixed seat 6. The four partition plates 12 are fixedly connected to the support plate 10 and the fitting plate 11. The four partition plates 12 divide to form two side cavities and a central cavity. The two outer partition plates 12 are respectively connected to the two side plates 1 by screws. The plurality of first arc extinguishing holes 17 are arranged on the support plate 10, communicating vertically and only respectively communicating with the two side cavities. The support seat 5 is arranged outside the support plate 10 and is fixedly connected to the four partition plates 12. The support seat 5 is connected to the fixed seat 6 by bolts.
[0036] The electric arc passes through the plurality of arc extinguishing grid plates 8 and the plurality of first arc extinguishing holes 17 and then is divided into two parts of the electric arc, and then respectively passes through the two side cavities and the arc extinguishing plate 7 for arc extinguishing, so that the electric arc can be divided again to achieve efficient arc extinguishing.
[0037] The second arc extinguishing structure includes a plurality of partition blocks 9. The plurality of partition blocks 9 are respectively arranged between the plurality of arc extinguishing grid plates 8 and are fixedly connected to the bottom surface of the support plate 10.
[0038] By arranging the plurality of partition blocks 9, the plurality of arc extinguishing grid plates 8 can be stably arranged at intervals.
[0039] The lower parts of the plurality of arc extinguishing grid plates 8 are respectively inserted into the tops of the two gas generating parts 2.
[0040] The lower parts of the plurality of arc extinguishing grid plates 8 are respectively inserted into the tops of the two gas generating parts 2, which is convenient for the disassembly, assembly and maintenance of the plurality of arc extinguishing grid plates 8.
[0041] Two first magnetic conduction plates 18 are arranged at the lower part of the first arc extinguishing structure 16. The two first magnetic conduction plates 18 are parallel to each other. The two first magnetic conduction plates 18 are vertically arranged and perpendicular to the two side plates 1. The two first magnetic conduction plates 18 are arranged on both sides of the air inlet of the first arc extinguishing structure 16.
[0042] The two first magnetic conduction plates 18 can perform magnetic blow arc extinguishing on the electric arc, so as to achieve efficient arc extinguishing.
[0043] The two side plates 1 and the two gas generating components 2 are connected by screws.
[0044] The connection by screws facilitates the disassembly, assembly and maintenance of the two gas generating components 2.
[0045] The arc extinguishing structure includes an anti-breakdown component 13, a first wire mesh 14 and a second wire mesh 15. The anti-breakdown component 13 is in a box shape, is arranged in the fixing seat 6, is above the first arc extinguishing structure 16, and covers the air outlet of the first arc extinguishing structure 16. The anti-breakdown component 13 is connected to the first arc extinguishing structure 16. A plurality of second arc extinguishing holes are arranged at the bottom of the anti-breakdown component 13, and the plurality of second arc extinguishing holes communicate up and down. The first wire mesh 14 is horizontally arranged in the anti-breakdown component 13. The second wire mesh 15 is arranged in the anti-breakdown component 13 and is above the first wire mesh 14.
[0046] The arc will pass through between the two first magnetic conduction plates 18, the first arc extinguishing structure 16, the anti-breakdown component 13, the first wire mesh 14, the second wire mesh 15, and the arc extinguishing plate 7 in sequence for arc extinguishing. By arranging the first wire mesh 14 and the second wire mesh 15, efficient arc extinguishing can be achieved.
[0047] The aperture of the second wire mesh 15 is larger than that of the first wire mesh 14.
[0048] It includes an arc initiating piece 4 and a second magnetic conduction plate 3. The arc initiating piece 4 is arranged on one side of a plurality of arc extinguishing grid pieces 8 and is in close contact with the outermost arc extinguishing grid piece 8. The lower part of the arc initiating piece 4 is bent inwards to the lower part of the plurality of arc extinguishing grid pieces 8, and the arc initiating piece 4 is clamped with the two gas generating components 2. The second magnetic conduction plate 3 is fixed to the bottom surface of the arc initiating piece 4.
[0049] The first magnetic conduction plate 18 and the second magnetic conduction plate 3 perform magnetic blow arc extinguishing on the arc, thereby achieving efficient arc extinguishing. By arranging the arc initiating piece 4, the arc can be guided.
[0050] The arc extinguishing grid pieces 8, the arc extinguishing plate 7, the arc initiating piece 4, the first magnetic conduction plate 18, and the second magnetic conduction plate 3 are made of ferromagnetic materials. The fixing seat 6, the anti-breakdown component 13, the support seat 5, and the gas generating component 2 are made of DMC materials. The first wire mesh 14 and the second wire mesh 15 are made of stainless steel woven meshes. The side plate 1 is made of melamine gas generating material. The partition block 9, the fitting plate 11, the support plate 10, and the partition plate 12 are made of nylon materials.
[0051] Working principle:
[0052] The opening contacts are between the two gas generating components 2 and on the side far from the arc initiating piece 4. When opening the switch, an arc will be generated between the two gas generating components 2. Then, a part of the arc will pass through between the two first magnetic conduction plates 18, the first arc extinguishing structure 16, the anti-breakdown component 13, the first wire mesh 14, the second wire mesh 15, and the arc extinguishing plate 7 in sequence for arc extinguishing. The two first magnetic conduction plates 18 can perform magnetic blow arc extinguishing on the arc, thereby achieving efficient arc extinguishing.
[0053] Another part of the arc passes through a number of arc extinguishing grid plates 8 and a number of first arc extinguishing holes 17 on one side and then is divided into two parts of the arc, and then passes through two side cavities and the arc extinguishing plate 7 respectively for arc extinguishing.
[0054] Still another part of the arc is guided by the arc ignition piece 4 and passes between the first magnetic conduction plate 18 and the second magnetic conduction plate 3, a number of arc extinguishing grid plates 8 and a number of first arc extinguishing holes 17 on the other side and then is divided into two parts of the arc, and then passes through two side cavities and the arc extinguishing plate 7 respectively for arc extinguishing. The first magnetic conduction plate 18 and the second magnetic conduction plate 3 perform magnetic blow arc extinguishing on the arc, so as to achieve efficient arc extinguishing.
[0055] The above embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.
Claims
1. An arc extinguishing device with three symmetrical air passages, characterized in that: include: Two side plates (1), two gas-producing parts (2) are arranged between the two side plates (1), a first arc-extinguishing structure (16) is arranged above the two gas-producing parts (2), two second arc-extinguishing structures are symmetrically arranged on both sides of the first arc-extinguishing structure (16), an arc-extinguishing structure is arranged above the first arc-extinguishing structure (16), the upper parts of the first arc-extinguishing structure (16) and the two second arc-extinguishing structures and the outer cover of the arc-extinguishing structure are provided with a fixing seat (6), the fixing seat (6) is cylindrical, and an arc-extinguishing plate (7) is provided above it.
2. The arc extinguishing device with three symmetrical air passages according to claim 1, characterized in that: The two side plates (1) are vertically arranged and parallel to each other; the symmetric planes of the two second arc extinguishing structures are vertically arranged and perpendicular to the two side plates (1); the second arc extinguishing structure comprises a plurality of arc extinguishing grids (8), a support plate (10), a bonding plate (11), four partition plates (12), a plurality of first arc extinguishing holes (17), and a support seat (5); the plurality of arc extinguishing grids (8) are parallel to each other and arranged at intervals, and are parallel to the symmetric planes of the two second arc extinguishing structures, and the lower parts of the plurality of arc extinguishing grids (8) are respectively connected to the tops of the two gas producing parts (2); the bonding plate (11) is arranged above the plurality of arc extinguishing grids (8) and is in close contact with the side of the first arc extinguishing structure (16); the support plate (10) is transversely arranged above the plurality of arc extinguishing grids (8), is located on the side of the bonding plate (11) away from the first arc extinguishing structure (16), and is in close contact with the bonding plate (1 1) fixedly connected; the four partition plates (12) are parallel to each other and arranged at intervals, and are parallel to the two side plates (1); the four partition plates (12) are arranged above the support plate (10), on the outside of the bonding plate (11), and are located in the fixing seat (6); the four partition plates (12) are fixedly connected to the support plate (10) and the bonding plate (11); the four partition plates (12) separate two side cavities and a central cavity; the two outer partition plates (12) are respectively connected to the two side plates (1) by screws; a plurality of first arc extinguishing holes (17) are arranged on the support plate (10), connected up and down and only connected to the two side cavities respectively; the support seat (5) is arranged on the outside of the support plate (10) and fixedly connected to the four partition plates (12); the support seat (5) is connected to the fixing seat (6) by bolts.
3. The arc extinguishing device with three symmetrical air passages according to claim 2, characterized in that: The second arc extinguishing structure comprises a plurality of partition blocks (9); the plurality of partition blocks (9) are respectively arranged between the plurality of arc extinguishing grids (8) and are fixedly connected to the bottom surface of the support plate (10).
4. The arc extinguishing device with three symmetrical air passages according to claim 3, characterized in that: The lower parts of the plurality of arc extinguishing grids (8) are respectively plugged into the tops of the two gas producing parts (2).
5. The arc extinguishing device with three symmetrical air passages according to claim 4, characterized in that: Two first magnetic conductive plates (18) are arranged at the bottom of the first arc extinguishing structure (16), the two first magnetic conductive plates (18) are parallel to each other, the two first magnetic conductive plates (18) are arranged vertically and perpendicular to the two side plates (1), and the two first magnetic conductive plates (18) are arranged on both sides of the air inlet of the first arc extinguishing structure (16).
6. The arc extinguishing device with three symmetrical air passages according to claim 5, characterized in that: The two side panels (1) are connected to the two gas producing parts (2) by means of screws.
7. The arc extinguishing device with three symmetrical air passages according to claim 6, characterized in that: The arc extinguishing structure comprises an anti-breakdown component (13), a first wire mesh (14), and a second wire mesh (15); the anti-breakdown component (13) is box-shaped, arranged in the fixing seat (6), located above the first arc extinguishing structure (16), and covers the air outlet of the first arc extinguishing structure (16); the anti-breakdown component (13) is connected to the first arc extinguishing structure (16); a plurality of second arc extinguishing holes are arranged at the bottom of the anti-breakdown component (13), and the plurality of second arc extinguishing holes are connected up and down; the first wire mesh (14) is transversely arranged in the anti-breakdown component (13); the second wire mesh (15) is arranged in the anti-breakdown component (13), located above the first wire mesh (14).
8. The arc extinguishing device with three symmetrical air passages according to claim 7, characterized in that: The aperture of the second wire mesh (15) is larger than the aperture of the first wire mesh (14).
9. The arc extinguishing device with three symmetrical air passages according to claim 8, characterized in that: It comprises an arc-striking sheet (4) and a second magnetic conductive plate (3); the arc-striking sheet (4) is arranged on one side of a plurality of arc-extinguishing grid sheets (8) and is in close contact with the outermost arc-extinguishing grid sheet (8); the lower portion of the arc-striking sheet (4) is bent inwardly to below the plurality of arc-extinguishing grid sheets (8); the arc-striking sheet (4) is clamped with the two gas-generating parts (2); and the second magnetic conductive plate (3) is fixed to the bottom surface of the arc-striking sheet (4).
10. The arc extinguishing device with three symmetrical air passages according to claim 9, characterized in that: The arc extinguishing grid (8), the arc extinguishing plate (7), the arc striking plate (4), the first magnetic conductive plate (18), and the second magnetic conductive plate (3) are made of ferromagnetic materials; the fixing seat (6), the anti-breakdown component (13), the supporting seat (5), and the gas generating component (2) are made of DMC materials; the first wire mesh (14) and the second wire mesh (15) are made of stainless steel woven mesh; the side plate (1) is made of melamine gas generating material; and the partition block (9), the bonding plate (11), the supporting plate (10), and the partition plate (12) are made of nylon materials.