CN220604434U - Zinc oxide lightning arrester - Google Patents

Abstract

The utility model relates to a zinc oxide arrester, which belongs to the technical field of arresters and comprises an arrester body, wherein an upper protector is arranged at the upper end of the arrester body, a lower protector is arranged at the lower end of the arrester body, the upper protector is used for protecting a wiring structure at the upper end of the arrester body, the lower protector is used for protecting wiring posts of a line segment of the arrester body, the upper protector comprises a protective cover, a rubber ring and a connecting sheet, the upper end of the arrester body is provided with a connecting lug, the connecting sheet is arranged on the inner wall of the protective cover, two interlayer rings are arranged in the protective cover, the rubber ring is arranged between the two interlayer rings, the rubber ring is sleeved on the upper end of the arrester body, a wire hole is formed in the rubber ring, a connecting wire of the wiring structure is inserted from an opening of the protective cover and penetrates through the wire hole to be connected, the wiring structure is protected by the upper protector, the wiring structure is prevented from being corroded by moisture, the rubber ring is sealed to a certain extent, moist air is prevented from entering the wiring structure, the whole is convenient to use, and the protectiveness is good.

Description

Zinc oxide lightning arrester

Technical Field

The utility model belongs to the technical field of lightning arresters, and particularly relates to a zinc oxide lightning arrester.

Background

The lightning arrester is protection equipment for protecting a transformer substation from the attack of lightning impulse waves, when the lightning impulse waves transmitted into the transformer substation along a line exceed the protection level of the lightning arrester, the lightning arrester discharges first, lightning current is safely introduced into the ground through a good conductor, and the lightning voltage amplitude is limited below the lightning impulse level of the protected equipment by utilizing a grounding device, so that the electrical equipment is protected. Zinc oxide arresters are arresters with good protective properties. The current flowing through the lightning arrester at normal working voltage is extremely small by utilizing the good nonlinear volt-ampere characteristic of zinc oxide; when overvoltage acts, the resistance drops sharply, and the energy of the overvoltage is discharged, so that the protection effect is achieved. Although the existing zinc oxide lightning arrester can be provided with the effect of effectively preventing lightning stroke, certain defects exist in sealing performance, and the top end and the bottom end of the zinc oxide lightning arrester are most prone to being affected with damp and corroded.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to provide a zinc oxide lightning arrester to solve the problems set forth in the background.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model relates to a zinc oxide arrester, which comprises an arrester body, wherein an upper protector is arranged at the upper end of the arrester body, a lower protector is arranged at the lower end of the arrester body, the upper protector is used for protecting a wiring structure at the upper end of the arrester body, the lower protector is used for protecting wiring posts of a line segment of the arrester body, the upper protector comprises a protective cover, a rubber ring and a connecting sheet, the upper end of the arrester body is provided with a connecting lug, the connecting sheet is arranged on the inner wall of the protective cover, the protective cover is connected with the connecting lug through a connecting sheet by bolts, two interlayer rings are arranged in the protective cover, the rubber ring is arranged between the two interlayer rings, the rubber ring is sleeved on the upper end of the arrester body, a wire hole is formed in the rubber ring, and a connecting wire of the wiring structure is inserted from an opening of the protective cover and penetrates through the wire hole to be connected.

Preferably, the lower protector is of a multi-layer sleeve structure, the lower protector is directly arranged at the lower end of the lightning arrester body, and the binding post is positioned in the lower protector.

Preferably, the lower protector is of the shell nature, and the cavity in the sleeve structure of each layer is prismatic in cross-section.

Preferably, a plurality of line cards are arranged in the protective cover, and the middle part of the connecting line is clamped on the line cards.

Preferably, the lightning arrester body is a zinc oxide lightning arrester.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

according to the zinc oxide lightning arrester, the wiring structure is protected through the upper protector to avoid wet corrosion and the like, the rubber ring is used for sealing to a certain extent to avoid moist air from entering the rubber ring to contact the wiring structure, and the zinc oxide lightning arrester is convenient to use integrally and good in protection.

Drawings

Fig. 1 is a schematic view of the overall structure of a zinc oxide arrester of the present utility model;

FIG. 2 is a schematic diagram of an upper protector of a zinc oxide arrester of the present utility model;

fig. 3 is a schematic view showing an internal structure of an upper protector of a zinc oxide arrester according to the present utility model;

fig. 4 is a schematic diagram showing a lower protector installation variation of the zinc oxide arrester of the present utility model.

Reference numerals in the schematic drawings illustrate:

100. a lightning arrester body; 110. a connecting lug;

200. an upper protector; 210. a protective cover; 211. a sandwich ring; 212. a line clip; 220. a rubber ring; 221. a wire hole; 230. a connecting sheet;

300. and a lower protector.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Referring to fig. 1 to 4, a zinc oxide arrester of this embodiment includes an arrester body 100, an upper protector 200 is provided at an upper end of the arrester body 100, a lower protector is provided at a lower end of the arrester body 100, the upper protector 200 is used for protecting a wiring structure at an upper end of the arrester body 100, the lower protector is used for protecting a wiring post of a line segment of the arrester body 100, the upper protector 200 includes a protection cover 210, a rubber ring 220 and a connection piece 230, the upper end of the arrester body 100 is provided with a connection lug 110, the connection piece 230 is mounted on an inner wall of the protection cover 210, the protection cover 210 is connected with the connection lug 110 by a bolt, two interlayer rings 211 are provided in the protection cover 210, the rubber ring 220 is mounted between the two interlayer rings 211, the rubber ring 220 is sleeved on an upper end of the arrester body 100, a wire hole 221 is provided on the rubber ring 220, a connection wire of the wiring structure is inserted from an opening of the protection cover 210 and is connected through the wire hole 221, the wiring structure is protected from the upper protector 200 by the designed structure, corrosion or the like, wherein the wiring structure is protected from moisture by the rubber ring 220 to some degree, and moist air is prevented from entering the wiring structure therein.

The lower protector of this embodiment is a multi-layered sleeve structure, and the lower protector is directly mounted at the lower end of the lightning arrester body 100, and the binding post is located in the lower protector.

The lower protector of this embodiment is of a thin shell nature, the cross-section of the cavity in the sleeve structure of each layer being prismatic.

The lower protector of above-mentioned structure is rubber material, and the terminal installation back, multilayer cover structure is extrudeed, possesses certain elasticity for it can be stable seal.

The protection cover 210 of the present embodiment is provided with a plurality of line cards 212, and the middle part of the connecting line is clamped on the line cards 212, so as to avoid dangers caused by shaking of the connecting line.

The arrester body 100 of the present embodiment is a zinc oxide arrester.

The foregoing examples merely illustrate certain embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the utility model, all of which fall within the scope of protection of the utility model; accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (5)

1. A zinc oxide arrester, characterized in that: including arrester body (100), the upper end of arrester body (100) is equipped with protector (200), the lower extreme of arrester body (100) is equipped with down the protector, go up the wiring structure that protector (200) are used for protecting arrester body (100) upper end, lower protector is used for protecting the terminal of arrester body (100) line segment, go up protector (200) including visor (210), rubber ring (220) and connection piece (230), the upper end of arrester body (100) is equipped with engaging lug (110), connection piece (230) are installed on the inner wall of visor (210), visor (210) are through connection piece (230) and engaging lug (110) bolted connection, be equipped with two intermediate layer rings (211) in visor (210), rubber ring (220) are installed between two intermediate layer rings (211), rubber ring (220) cover is on the upper end of arrester body (100), be equipped with line hole (221) on rubber ring (220), the visor (210) of wiring structure inserts from visor (210) and passes line hole (221) from opening.

2. A zinc oxide arrester according to claim 1, characterized in that: the lower protector is of a multi-layer sleeve structure, the lower protector is directly arranged at the lower end of the lightning arrester body (100), and the binding post is positioned in the lower protector.

3. A zinc oxide arrester according to claim 2, characterized in that: the lower protector is of a thin shell characteristic, and the cross section of the cavity in each layer of the sleeve structure is prismatic.

4. A zinc oxide arrester according to claim 1, characterized in that: a plurality of line cards (212) are arranged in the protective cover (210), and the middle part of the connecting line is clamped on the line cards (212).

5. A zinc oxide arrester according to claim 1, characterized in that: the lightning arrester body (100) is a zinc oxide lightning arrester.