Lightning arrester disconnector shell

Abstract

The utility model provides a lightning arrester disconnector shell, which comprises a protective shell and a disconnector body, the protective shell comprises a bottom shell and an upper cover, the bottom shell is internally provided with an inner cavity, the disconnector body is arranged in the inner cavity, the inner side wall of the inner cavity is provided with a plurality of drainage plates, the outer side surface of the bottom shell is provided with a plurality of pressure relief cavities, and the pressure relief cavities are communicated with the drainage plates. Exhaust holes are formed in the tops of the sides, away from the bottom shell, of the pressure relief cavities, pressure relief holes are formed in the bottoms of the sides, close to the bottom shell, of the pressure relief cavities, and the pressure relief cavities communicate with the inner cavity through the pressure relief holes. According to the disconnector, the protective shell is additionally arranged on the disconnector body, so that the protective shell has the function of protecting the disconnector body from thermal explosion, high-temperature splashed chippings are prevented from burning nearby constructors, the chippings generated during thermal explosion are prevented from being splashed out along the exhaust holes through the structure of the pressure relief cavity, and the protective effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of disconnectors, in particular to a lightning arrester disconnector housing. Background Art

[0002] The arrester disconnector is a safety device installed on power equipment. It is mainly used to monitor the working status of the arrester. When the arrester fails due to overvoltage or aging, resulting in abnormal increase in internal pressure, the disconnector can act quickly to disconnect the arrester from the power grid to prevent more serious safety accidents caused by its failure. This can protect the power system from damage and ensure the safety of personnel and equipment.

[0003] When a lightning arrester fails, the disconnector will be separated by thermal explosion. During the thermal explosion and separation process, high-temperature flying debris is likely to be generated, which can easily burn nearby construction workers or fall on other equipment in the power system, causing power transmission failures, and has low safety. Therefore, we propose a lightning arrester disconnector shell to solve the above problems. Utility Model Content

[0004] The utility model provides a lightning arrester disconnector housing to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lightning arrester disconnector shell comprises a protective shell and a disconnector body, the protective shell comprises a bottom shell and an upper cover, an inner cavity is provided in the bottom shell, the disconnector body is arranged in the inner cavity, a plurality of guide plates are provided on the inner side wall of the inner cavity, a plurality of pressure relief chambers are provided on the outer surface of the bottom shell, exhaust holes are provided on the top of a plurality of pressure relief chambers away from the bottom shell, pressure relief holes are provided on the bottom of a plurality of pressure relief chambers close to the bottom shell, and the plurality of pressure relief chambers are connected to the inner cavity through the pressure relief holes.

[0007] Preferably, the bottom shell and the upper cover are both made of stainless steel.

[0008] Preferably, the pressure relief chambers and the guide plates are arranged in a staggered manner.

[0009] Preferably, the bottom shell is threadably connected to the upper cover.

[0010] Preferably, a first connecting hole is provided at the center of the top of the upper cover, and a second connecting hole is provided at the center of the bottom of the bottom shell.

[0011] Beneficial Effects

[0012] The above one or more technical solutions in a lightning arrester disconnector housing provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] The utility model adds a protective shell to the disconnector body so that the protective shell has the function of protecting the disconnector body from thermal explosion, thereby preventing high-temperature splashing debris from burning nearby construction personnel. The airflow generated when the disconnector body explodes is drained through the guide plate, and the air pressure generated when the disconnector body explodes is released through the pressure relief hole, the pressure relief chamber and the exhaust hole, thereby accelerating the pressure relief speed. Moreover, the structure among the pressure relief hole, the pressure relief chamber and the exhaust hole prevents the debris generated when the thermal explosion from splashing out through the exhaust hole, thereby achieving a better protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0016] Figure 3 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the explosion structure of the utility model;

[0018] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0019] 1. Protective shell; 2. Disconnector body; 3. Bottom shell; 4. Upper cover; 5. Inner cavity; 6. Drain plate; 7. Pressure relief cavity; 8. Exhaust hole; 9. Pressure relief hole; 10. First connecting hole; 11. Second connecting hole. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-4 As shown, it is a structural schematic diagram of a lightning arrester disconnector housing in a preferred embodiment of the utility model;

[0024] In this embodiment, a protective shell 1 and a disconnector body 2 are included. The protective shell 1 includes a bottom shell 3 and an upper cover 4. The bottom shell 3 is a cylindrical structure. An inner cavity 5 is provided in the bottom shell 3. The disconnector body 2 is embedded in the inner cavity 5 by a card. A plurality of guide plates 6 are integrally welded on the inner wall of the inner cavity 5. The plurality of guide plates 6 are arranged in a circular array along the axis of the bottom shell 3. A plurality of pressure relief chambers 7 are provided on the outer surface of the bottom shell 3. The plurality of pressure relief chambers 7 are arranged in a circular array along the axis of the bottom shell 3. The top of the cavity 7 on one side away from the bottom shell 3 is provided with an exhaust hole 8, and the air pressure is discharged from the pressure relief cavity 7 through the exhaust hole 8. The bottom of the pressure relief cavity 7 on one side close to the bottom shell 3 is provided with a pressure relief hole 9. Several of the pressure relief cavities 7 are connected with the inner cavity 5 through the pressure relief holes 9. When the disconnector body 2 is thermally exploded, the airflow generated is guided into the pressure relief hole 9 through the guide plate 6. The airflow enters the pressure relief cavity 7 through the pressure relief hole 9 and is discharged through the exhaust hole 8, thereby completing the function of relieving the air pressure generated when the disconnector body 2 is thermally exploded.

[0025] In this embodiment, the bottom shell 3 and the upper cover 4 are both made of stainless steel. By using this material, the strength of the bottom shell 3 and the upper cover 4 is improved, and deformation of the bottom shell 3 and the upper cover 4 after the disconnector body 2 is thermally exploded is avoided, so that the protective shell 1 can be reused.

[0026] In this embodiment, the pressure relief chambers 7 and the guide plates 6 are arranged in a staggered manner, and the airflow generated when the separator body 2 is thermally exploded is guided into the pressure relief holes 9 through the guide plates 6 .

[0027] In this embodiment, the bottom shell 3 is threadedly connected to the upper cover 4 , and this structure facilitates the disassembly of the bottom shell 3 and the upper cover 4 , and facilitates the assembly of the disconnector body 2 and the protective shell 1 .

[0028] In this embodiment, a first connection hole 10 is provided at the center of the top of the upper cover 4, and a second connection hole 11 is provided at the center of the bottom of the bottom shell 3. The first connection hole 10 and the second connection hole 11 facilitate the connection of the top and bottom of the disconnector body 2 with external equipment.

[0029] The utility model provides a lightning arrester disconnector housing, and its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0030] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0031] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A lightning arrester disconnector housing, comprising a protective housing (1) and a disconnector body (2), characterized in that: The protective shell (1) comprises a bottom shell (3) and an upper cover (4); an inner cavity (5) is provided in the bottom shell (3); the disconnector body (2) is arranged in the inner cavity (5); a plurality of guide plates (6) are provided on the inner side wall of the inner cavity (5); a plurality of pressure relief cavities (7) are provided on the outer surface of the bottom shell (3); exhaust holes (8) are provided on the top of a side of the plurality of pressure relief cavities (7) away from the bottom shell (3); a pressure relief hole (9) is provided on the bottom of a side of the pressure relief cavity (7) close to the bottom shell (3); and the plurality of pressure relief cavities (7) are connected to the inner cavity (5) through the pressure relief holes (9).

2. The arrester disconnector housing according to claim 1, characterized in that: The bottom shell (3) and the upper cover (4) are both made of stainless steel.

3. The arrester disconnector housing according to claim 1, characterized in that: The pressure relief chambers (7) and the guide plates (6) are arranged in a staggered manner.

4. The arrester disconnector housing according to claim 1, characterized in that: The bottom shell (3) is threadably connected to the upper cover (4).

5. The arrester disconnector housing according to claim 1, characterized in that: A first connection hole (10) is provided at the center of the top of the upper cover (4), and a second connection hole (11) is provided at the center of the bottom of the bottom shell (3).

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