CN215601010U

CN215601010U - Disconnector of lightning arrester and lightning arrester

Info

Publication number: CN215601010U
Application number: CN202121165143.XU
Authority: CN
Inventors: 赵庆源; 佟锐; 陈丽娟; 吴明洋; 朱宏超; 赵方成; 张雨辰; 刘永阔
Original assignee: Benxi Power Supply Co of Liaoning Electric Power Co Ltd
Current assignee: Benxi Power Supply Co of Liaoning Electric Power Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-21
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a disconnector of a lightning arrester and the lightning arrester, comprising a cylindrical shell internally provided with a thermal explosion circuit, wherein a plurality of explosion-proof openings are arranged on the shell at equal intervals, and a door curtain is arranged on the shell corresponding to the explosion-proof openings. The top edge of casing sets up the axle along the circumference, the epaxial one end of establishing the door curtain that overlaps, set up the extension spring between the other end of door curtain and the casing. This is novel makes the casing when the heat explosion, comes the pressure release through explosion vent to can not make the casing damage because pressure is too big, at the door curtain structure that explosion vent set up, can pull back the door curtain through the extension spring again, consequently when not taking place the heat explosion, play dustproof rainproof function, thereby improved the life of disconnector, derive through setting up the static that the protective layer will disconnector product production, prevent that the casing is electrified and cause the accumulation of electric charge.

Description

Disconnector of lightning arrester and lightning arrester

Technical Field

The utility model relates to the technical field of lightning arresters, in particular to a disconnector of a lightning arrester and the lightning arrester.

Background

The lightning arrester (foreign name: large arrester, also named: overvoltage protector) is an electric appliance for protecting electric equipment from high transient overvoltage and limiting follow current time and also limiting follow current assignment, the main material of the lightning arrester is zinc oxide, the lightning arrester is usually connected between a power grid wire and a ground wire and sometimes connected beside a winding of the electric appliance or between wires, the most original lightning arrester is a claw-shaped gap which appears at the end of 19 th century and is used for an overhead transmission line to prevent power failure caused by lightning stroke damage to equipment insulation, so the lightning arrester is called as 'lightning arrester', 20 th century, aluminum lightning arrester, oxide film lightning arrester and pill lightning arrester appear, 30 th generation appears as a tubular lightning arrester, 50 th generation appears as a silicon carbide lightning arrester, 70 th generation also appears as a metal oxide lightning arrester, modern high-voltage lightning arrester not only is used for limiting overvoltage caused by lightning in an electric power system, and also for limiting the overvoltage generated by the system operation, the lightning arrester requires a high-precision disconnector.

The existing disconnector shell has no good antistatic property, the whole service life is short, and the thermal explosion type lightning arrester can cause the scattering of parts and the damage of the shell during explosion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-precision detacher for a lightning arrester, which aims to solve the problem that the conventional detacher in the background art has short service life.

In order to achieve the purpose, the utility model provides the following technical scheme: the disconnector for the lightning arrester comprises a cylindrical shell internally provided with a thermal explosion circuit, wherein a plurality of explosion-proof ports are formed in the shell at equal intervals, and a door curtain is arranged on the shell corresponding to the explosion-proof ports.

Further, the top edge of casing sets up the axle along the circumference, the epaxial one end of establishing the door curtain that overlaps, set up the extension spring between the other end of door curtain and the casing.

Further, the door curtain is a flexible plastic film.

Furthermore, one end face, connected with the lightning arrester, of the shell is provided with a first circular ring, one end, corresponding to the lightning arrester, of the shell is provided with a second circular ring, and the first circular ring is connected with the second circular ring through bolts.

Furthermore, a first circular ring is arranged on one end face, connected with the lightning arrester, of the shell, a second circular ring is arranged on one end, corresponding to the lightning arrester, of the shell, and the first circular ring is connected with the second circular ring through a plurality of springs.

Furthermore, a stretchable protective sleeve is arranged between the first circular ring and the second circular ring, and the stretchable protective sleeve is a wire channel.

Further, the shell outer layer is provided with a protective layer.

Further, the protective layer includes that the static of outer insulating layer and inlayer is derived the layer, the static is derived the layer and is graphite alkene layer, graphite alkene layer extends to on the spliced pole of casing lower extreme, spliced pole connecting wire.

The utility model provides a lightning arrester, which comprises the disconnector.

Compared with the prior art, the utility model has the beneficial effects that: this is novel makes the casing when the heat explosion, comes the pressure release through explosion vent to can not make the casing damage because pressure is too big, at the door curtain structure that explosion vent set up, can pull back the door curtain through the extension spring again, consequently when not taking place the heat explosion, play dustproof rainproof function, thereby improved the life of disconnector, derive through setting up the static that the protective layer will disconnector product production, prevent that the casing is electrified and cause the accumulation of electric charge.

Through setting up the spring and can stretch the protective sheath between being connected with the arrester, when the thermal explosion, thereby can play the effect of buffering and avoid the damage of being connected with the disconnector.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the door curtain structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a disconnector for a lightning arrester, the main body of which includes a housing 2, and a thermal explosion circuit is disposed inside the housing 2, the thermal explosion circuit is a conventional circuit and is not expanded here, and the cross-sectional shape of the housing is not limited. Can be circular also can be square, and the preferential circular that is convenient for make and the even of atress all around, equidistantly on the casing seted up a plurality of explosion-proof mouths 5 the position that corresponds explosion-proof mouth on the casing sets up door curtain 6. Referring to fig. 2, a circle of shaft 8 is arranged around the circumference at the upper edge or the lower edge of the shell 2, a door curtain is arranged on the shaft at a position corresponding to the explosion-proof opening, and after the door curtain covers the explosion-proof opening, the other end of the door curtain is connected with the shell through a tension spring 14. The tension generated by the tension spring 14 enables the door curtain to be attached to the explosion-proof opening as much as possible.

The material of door curtain does not do the restriction, and is preferential, and the door curtain is flexible plastic film, is difficult to damage, has fine laminating nature.

Through the structure of similar flange between casing 2 and the arrester 1, it is concrete, the terminal surface that casing and arrester are connected sets up to first ring 7, and the one end that the arrester corresponds sets up second ring 4, can directly pass through bolted connection between first ring and the second ring. An elastic member connection, for example, a plurality of springs 9, may be provided between the first ring and the second ring, the springs acting as a buffer during thermal explosion. Thereby preventing damage to the device.

The wire between the lightning arrester and the shell passes through the first circular ring and the second circular ring, and the stretchable protective sleeve 10 is arranged outside the wire to be used as a wire passage. The lightning arrester is welded on the second ring through the bell mouth connecting piece 3.

Preferably, a protective layer is provided on the outer layer of the housing. This protective layer can be the insulating cover of solitary built-in conducting layer, and the cover is established outside the casing, also can scribble the coating of casing between, derive the layer including the static of outer insulating layer and inlayer, and static is derived the layer and is graphite alkene layer, graphite alkene layer extends to on the spliced pole 12 of casing lower extreme, spliced pole connecting wire 13, derives static.

A mounting ring 11 is provided on the housing, and the mounting ring 11 is connected to equipment for mounting the lightning arrester.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The disconnector for the lightning arrester is characterized by comprising a cylindrical shell internally provided with a thermal explosion circuit, wherein a plurality of explosion-proof openings are formed in the shell at equal intervals, and a door curtain is arranged on the shell corresponding to the explosion-proof openings.

2. The detacher of claim 1, wherein the upper edge of the housing is circumferentially provided with a shaft, the shaft is sleeved with one end of the door curtain, and a tension spring is provided between the other end of the door curtain and the housing.

3. The detacher of claim 2, wherein said curtain is a flexible plastic film.

4. A disconnector according to claim 2, in which the end face of the housing to which the arrester is connected is provided as a first ring, and the corresponding end of the arrester is provided with a second ring, said first ring being bolted to said second ring.

5. A disconnector according to claim 2, in which the end face of the housing to which the arrester is connected is provided as a first ring, the corresponding end of the arrester is provided with a second ring, and a plurality of spring connections are provided between said first ring and said second ring.

6. A detacher as claimed in claim 5, characterised in that a stretchable sheath is provided intermediate said first ring and said second ring, said stretchable sheath being a wire passage.

7. A detacher as claimed in claim 1, characterised in that the housing outer layer is provided with a protective layer.

8. A detacher as claimed in claim 7, characterised in that the protective layer comprises an outer insulating layer and an inner static electricity conducting layer, the static electricity conducting layer being a graphene layer extending to a connection post at the lower end of the housing, the connection post being connected to a lead.

9. An arrester characterized by comprising a disconnector according to any one of claims 1 to 8.