High-efficiency ceramic high-voltage vacuum arc-extinguishing chamber device

Abstract

The utility model discloses a high-efficiency ceramic high-voltage vacuum arc-extinguishing chamber device, which comprises an insulating shell, a movable end cover body and a fixed end cover body are respectively arranged at two ends of the insulating shell, a movable feeler lever is arranged at the movable end cover body, a fixed feeler lever is arranged at the fixed end cover body, a convex rod is arranged on the side surface of the movable feeler lever, and the convex rod is connected with the movable feeler lever. One side of the protruding rod is provided with an L rod, the L rod is connected with the insulating shell through a rotating shaft, the other end of the L rod is provided with an isolation piece, and the isolation piece is connected with the installation groove body through an installation bolt. When the vacuum arc extinguishing device is used, the movable feeler lever is pushed through an external driving device, so that the movable feeler lever and the fixed feeler lever are disconnected and separated, the purpose of vacuum arc extinguishing is achieved, the movable feeler lever drives the L-shaped rod in the separation process, the L-shaped rod rotates around the rotating shaft, then the two isolation pieces are pushed, the two isolation pieces are tightly attached, and the movable feeler lever and the fixed feeler lever are isolated. The arc extinguishing effect is further achieved, and the arc extinguishing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage electrical insulation, in particular to a ceramic high-voltage vacuum interrupter device with high efficiency. Background Art

[0002] Vacuum circuit breaker is a switching device that uses vacuum as arc extinguishing medium and insulating medium. It can close, carry and interrupt the normal current of the operating circuit, and can also close, carry and interrupt the specified overload current within the specified time. It is mainly used to quickly cut off the faulty part from the power grid when a power line or equipment fails, to ensure the normal movement of the fault-free part in the power grid.

[0003] When disconnecting, the edge of the moving contact or the static contact will cause more tip discharge phenomena, which will reduce the ability of the vacuum interrupter to instantly break the current.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a ceramic high-voltage vacuum interrupter device with high efficiency, which has the advantages of rapid current disconnection and rapid arc extinguishing, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the advantages of rapid current disconnection and rapid arc extinguishing, the specific technical solutions adopted by the utility model are as follows:

[0009] A ceramic high-voltage vacuum arc extinguishing chamber device with high efficiency comprises an insulating shell, a moving end cover and a fixed end cover are respectively installed at both ends of the insulating shell, a moving contact rod is arranged at the moving end cover, and a fixed contact rod is arranged at the fixed end cover, a convex rod is arranged on the side surface of the moving contact rod, an L rod is arranged on one side of the convex rod, and the L rod is connected to the insulating shell through a rotating shaft, and an isolation plate is arranged at the other end of the L rod, and the isolation plate is connected to a mounting groove body through a mounting bolt, and the mounting groove body is fixed to the inner side surface of the insulating shell.

[0010] Furthermore, a bellows is provided inside the insulating shell, and the bellows is sleeved with the moving contact rod.

[0011] Furthermore, the isolation sheet is made of rubber.

[0012] Furthermore, a strip-shaped hole is provided on the side surface of the L-rod for use with the convex rod.

[0013] Furthermore, the mounting slot, mounting bolts and L-rod are all made of metal ceramics.

[0014] Furthermore, contacts are provided at the ends of the fixed contact rod and the movable contact rod, and the contacts are made of silicon carbide.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a ceramic high-voltage vacuum interrupter device with high efficiency, which has the following beneficial effects:

[0017] (1) The utility model adopts an insulating shell, a moving end cover, a fixed end cover, a moving contact rod, a fixed contact rod, a convex rod, an L rod, a spacer, a mounting bolt and a mounting groove. When in use, the moving contact rod is pushed by an external driving device, so that the moving contact rod is disconnected and separated from the fixed contact rod, thereby achieving the purpose of vacuum arc extinguishing. Secondly, during the separation process, the moving contact rod drives the L rod, so that the L rod rotates around the rotating shaft, and then pushes the spacer, so that the two spacers are tightly attached to each other, isolating the moving contact rod from the fixed contact rod, further achieving the effect of arc extinguishing and improving the arc extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a ceramic high-voltage vacuum interrupter device with high efficiency proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a ceramic high-voltage vacuum interrupter device with high efficiency proposed by the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the internal top view structure of a ceramic high-voltage vacuum interrupter device with high efficiency.

[0022] In the figure:

[0023] 1. Insulating shell; 2. Moving end cover; 3. Fixed end cover; 4. Moving contact rod; 5. Fixed contact rod; 6. Isolation sheet; 7. L rod; 8. Strip hole; 9. Protruding rod; 10. Bellows; 11. Mounting slot; 12. Mounting bolt; 13. Contact. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a ceramic high-voltage vacuum interrupter device with high efficiency is provided.

[0026] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, according to an embodiment of the utility model, a ceramic high-voltage vacuum arc extinguishing chamber device with high efficiency includes an insulating shell 1, a moving end cover body 2 and a fixed end cover body 3 are respectively installed at both ends of the insulating shell 1, a moving contact rod 4 is arranged at the moving end cover body 2, and a fixed contact rod 5 is arranged at the fixed end cover body 3, a convex rod 9 is arranged on the side surface of the moving contact rod 4, an L rod 7 is arranged on one side of the convex rod 9, and the L rod 7 is connected to the insulating shell 1 through a rotating shaft, and an isolation plate 6 is arranged at the other end of the L rod 7, and the isolation plate 6 is connected to the mounting groove body 11 through a mounting bolt 12, and the mounting groove body 11 is fixed to the inner side surface of the insulating shell 1, and a strip hole 8 used in conjunction with the convex rod 9 is opened on the side surface of the L rod 7.

[0027] Specifically, when in use, the moving contact rod 4 is pushed by an external driving device, so that the moving contact rod 4 is disconnected and separated from the fixed contact rod 5, thereby achieving the purpose of vacuum arc extinguishing. Secondly, during the separation process, the moving contact rod 4 drives the L rod 7, so that the L rod 7 rotates around the rotating shaft, and then pushes the isolation sheet 6, so that the two isolation sheets 6 are tightly attached to each other, thereby isolating the moving contact rod 4 and the fixed contact rod 5, further achieving the effect of arc extinguishing and improving the arc extinguishing effect.

[0028] In one embodiment, a bellows 10 is disposed inside the insulating housing 1 , and the bellows 10 is sleeved with the moving contact rod 4 .

[0029] Specifically, it mainly plays the role of arc extinguishing and power off.

[0030] In one embodiment, the isolation sheet 6 is made of rubber.

[0031] Specifically, it has insulating properties and high elasticity.

[0032] In one embodiment, the mounting slot 11 , the mounting bolt 12 and the L-rod 7 are all made of metal ceramics.

[0033] Specifically, it has insulating properties to prevent the moving contact rod 4 and the fixed contact rod 5 from indirect contact.

[0034] In one embodiment, contacts 13 are disposed at the ends of the fixed contact rod 5 and the movable contact rod 4, and the contacts 13 are made of silicon carbide.

[0035] Specifically, by providing the contact 13 made of silicon carbide, the contact has the characteristics of high temperature stability, high hardness, high ablation resistance and electrical conductivity.

[0036] Working principle: When in use, the external driving device is used to push the moving contact rod 4, so that the moving contact rod 4 is disconnected and separated from the fixed contact rod 5, thereby achieving the purpose of vacuum arc extinguishing. Secondly, during the separation process, the moving contact rod 4 drives the L rod 7, so that the L rod 7 rotates around the rotating shaft, and then pushes the isolation sheet 6, so that the two isolation sheets 6 are tightly attached to each other, thereby isolating the moving contact rod 4 and the fixed contact rod 5, further achieving the effect of arc extinguishing and improving the arc extinguishing effect.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ceramic high-voltage vacuum interrupter device with high efficiency, comprising an insulating housing (1), characterized in that: The two ends of the insulating housing (1) are respectively provided with a movable end cover body (2) and a fixed end cover body (3); the movable end cover body (2) is provided with a movable contact rod (4); the fixed end cover body (3) is provided with a fixed contact rod (5); a convex rod (9) is provided on the side surface of the movable contact rod (4); an L rod (7) is provided on one side of the convex rod (9); and the L rod (7) is connected to the insulating housing (1) via a rotating shaft; an isolation sheet (6) is provided at the other end of the L rod (7); the isolation sheet (6) is connected to a mounting groove body (11) via a mounting bolt (12); and the mounting groove body (11) is fixed to the inner side surface of the insulating housing (1).

2. The ceramic high-voltage vacuum interrupter device with high efficiency according to claim 1, characterized in that: A bellows (10) is arranged inside the insulating housing (1), and the bellows (10) is sleeved with the moving contact rod (4).

3. The ceramic high-voltage vacuum interrupter device with high efficiency according to claim 1, characterized in that: The isolation sheet (6) is made of rubber.

4. The ceramic high-voltage vacuum interrupter device with high efficiency according to claim 1, characterized in that: The side surface of the L-rod (7) is provided with a strip-shaped hole (8) used in conjunction with the convex rod (9).

5. The ceramic high-voltage vacuum interrupter device with high efficiency according to claim 1, characterized in that: The installation slot body (11), the installation bolt (12) and the L rod (7) are all made of metal ceramic material.

6. The high-efficiency ceramic high-voltage vacuum interrupter device according to claim 1, characterized in that: The ends of the fixed contact rod (5) and the movable contact rod (4) are both provided with contacts (13), and the contacts (13) are made of silicon carbide.

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