CN220822628U

CN220822628U - Integral overvoltage protector

Info

Publication number: CN220822628U
Application number: CN202322560717.9U
Authority: CN
Inventors: 任海义; 徐功武; 许晓峰; 王峻
Original assignee: Anhui Giant Forest Electric Co ltd
Current assignee: Anhui Giant Forest Electric Co ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-04-19
Anticipated expiration: 2033-09-20

Abstract

The utility model discloses an integrated overvoltage protector, in particular to the technical field of overvoltage protectors, which comprises an insulated wire and a protector body, wherein the insulated wire is connected to the top end of the protector body, a lower connecting column is arranged at the bottom end of the protector body, an upper connecting column is arranged at the top end of the protector body, a fixed plate is arranged at the bottom end of the lower connecting column, the insulated wire is connected to the top end of the upper connecting column, an insulating sleeve is sleeved outside the protector body, and a large umbrella skirt and a small umbrella skirt are sequentially arranged on the outer wall of the insulating sleeve; a spherical electrode extending to one side is arranged on the outer wall of the protector body. The utility model enables the spherical electrode and the rod electrode to form an air gap, and has the advantages of stable height, fixed gap distance, uniform and reasonable potential distribution, stable discharge voltage, and no influence on the normal operation of the circuit due to the gap isolation effect even if the protector is damaged under abnormal conditions.

Description

Integral overvoltage protector

Technical Field

The utility model relates to the technical field of overvoltage protectors, in particular to an integrated overvoltage protector.

Background

With the continuous deep construction and transformation of urban and rural power grids, a large number of overhead conductors of distribution lines adopt insulated conductors, and the accident of broken lines caused by lightning damage is relatively increased (compared with bare conductors). The conventional adoption strengthens local insulation or lightning protection electrode, and the investment is big effectual, is difficult for the arc extinction, needs the circuit to be qualified for next round of competitions the circuit breaker cooperation to fall the floodgate, recloses, needs to consider the performance of being qualified for next round of competitions the circuit breaker. The ring-shaped overvoltage protector adopted in recent years has the advantages that tiny discharge holes are easy to form on an insulated wire, adverse effects are formed on sealing and moisture proofing, the problem of how to prevent water from penetrating into an insulated wire core exists, and the wire core is likely to be broken due to electrochemical corrosion, so that the service life is influenced.

Disclosure of utility model

In order to solve the technical problems, the utility model provides an integrated overvoltage protector, which comprises an insulated wire and a protector body, wherein the insulated wire is connected to the top end of the protector body, a lower connecting column is arranged at the bottom end of the protector body, an upper connecting column is arranged at the top end of the protector body, a fixed plate is arranged at the bottom end of the lower connecting column, the insulated wire is connected to the top end of the upper connecting column, an insulating sleeve is sleeved outside the protector body, and a large umbrella skirt and a small umbrella skirt are sequentially arranged on the outer wall of the insulating sleeve;

The outer wall of the protector body is provided with a spherical electrode extending to one side, the outer wall of the upper connecting column is provided with a rod-shaped electrode extending to one side, the extending directions of the spherical electrode and the rod-shaped electrode are consistent, and the insulated wire is set as a diameter-expanding wire.

In a preferred embodiment, a plurality of fixing bolts are uniformly installed on the fixing plate.

In a preferred embodiment, the spherical electrode comprises a first link extending outward on the outer wall of the protector body, and a vertical rod extending downward is mounted at the end of the first link, and the vertical rod is integrally provided with the first link.

In a preferred embodiment, the rod-shaped electrode comprises a second connecting rod extending outwards on the outer wall of the upper connecting column, and discharge ends are arranged at the top end of the vertical rod and the end part of the second connecting rod.

In a preferred embodiment, the discharge ends of the vertical rods and the discharge ends of the second connecting rods are the same in height, and an air gap structure is arranged between the discharge ends of the vertical rods and the discharge ends of the second connecting rods.

In a preferred embodiment, the insulated wires comprise a colloid hose positioned inside, a plurality of copper core wires are uniformly attached to the outer wall of the colloid hose, and an insulating layer is wrapped outside the plurality of copper core wires.

The utility model has the technical effects and advantages that:

1. the utility model enables the air gap between the spherical electrode and the rod-shaped electrode, and has the advantages of stable height, fixed gap distance, uniform and reasonable potential distribution, stable discharge voltage, and no influence on the normal operation of the circuit due to the gap isolation effect even if the protector is damaged under abnormal conditions;

2. The radius of the insulated wire is increased under the condition of the same cross-sectional area, so that the radius of curvature of the electrode is increased, the intensity of a local electric field is reduced, and the safety is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

Fig. 2 is a schematic cross-sectional view of an insulated wire according to the present utility model.

Reference numerals illustrate: the high-voltage power supply comprises an insulating wire 1, a protector body 2, a lower connecting column 3, an upper connecting column 4, a fixing plate 5, an insulating layer 6, a large umbrella skirt 7, a small umbrella skirt 8, a spherical electrode 9, a rod-shaped electrode 10, an expanded diameter wire 11, a fixing bolt 12, a first connecting rod 13, a vertical rod 14, a second connecting rod 15, a discharging end 16, a colloid hose 17, a copper core wire 18 and an insulating layer 19.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

The utility model provides an integral type overvoltage protection ware as shown in fig. 1-2, including insulated wire and protector body, insulated wire connects the top at the protector body, install down the spliced pole in protector body bottom, install the spliced pole on protector body top, install the fixed plate in lower spliced pole bottom, insulated wire connects last spliced pole top, be equipped with the insulating sleeve at the outside cover of protector body, set gradually big umbrella skirt and little umbrella skirt on insulating sleeve outer wall, install the spherical electrode that extends to one side on the protector body outer wall, install the stick electrode that extends to one side on last spliced pole outer wall, the extending direction of spherical electrode and stick electrode is unanimous, insulated wire sets up to the expanded wire evenly install a plurality of fixing bolt on the fixed plate.

On the basis, during the use, through fixed bolt with fixed plate fixed mounting on the cross arm of circuit pole, the setting of insulating cover, big or small umbrella skirt, corrosion resistance and weatherability are good, have prolonged life, have promoted the insulating nature, have improved the electrical safety.

The spherical electrode comprises a first connecting rod which extends outwards on the outer wall of the protector body, a vertical rod which extends downwards is arranged at the end part of the first connecting rod, the vertical rod and the first connecting rod are integrally arranged, the rod-shaped electrode comprises a second connecting rod which extends outwards on the outer wall of an upper connecting column, discharge ends are arranged at the top end of the vertical rod and the end part of the second connecting rod, the discharge ends of the end part of the vertical rod and the end part of the second connecting rod are identical in height, and an air gap structure is arranged between the discharge ends.

The air gap is formed between the spherical electrode and the rod-shaped electrode, the height is the same, the distance between the spherical electrode and the rod-shaped electrode is fixed, the potential distribution is uniform and reasonable, the discharge voltage is stable, and even if the protector is damaged under abnormal conditions, the normal operation of a circuit is not influenced due to the gap isolation effect.

The insulated wire comprises a colloid hose positioned inside, a plurality of copper core wires are uniformly attached to the outer wall of the colloid hose, and an insulating layer is wrapped outside the copper core wires.

The inside colloid hose provides insulating and supporting effect, and copper core wire part is used for conducting and electrically conducting, and outside insulating layer insulates, forms the expanded wire for insulating wire part wire radius increases under the same cross-sectional area, has increased electrode radius of curvature, is favorable to reducing the intensity of local electric field, has improved the security.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The integrated overvoltage protector comprises an insulated wire and a protector body, wherein the insulated wire is connected to the top end of the protector body, a lower connecting column is arranged at the bottom end of the protector body, an upper connecting column is arranged at the top end of the protector body, a fixed plate is arranged at the bottom end of the lower connecting column, and the insulated wire is connected to the top end of the upper connecting column;

2. An integrated overvoltage protector as set forth in claim 1 wherein: a plurality of fixing bolts are uniformly arranged on the fixing plate.

3. An integrated overvoltage protector as set forth in claim 1 wherein: the spherical electrode comprises a first connecting rod which extends outwards on the outer wall of the protector body, a vertical rod which extends downwards is arranged at the end part of the first connecting rod, and the vertical rod and the first connecting rod are integrally arranged.

4. An integrated overvoltage protector according to claim 3 wherein: the rod-shaped electrode comprises a second connecting rod which extends outwards on the outer wall of the upper connecting column, and discharge ends are arranged at the top end of the vertical rod and the end part of the second connecting rod.

5. The integrated overvoltage protector as set forth in claim 4, wherein: the discharge end of the end part of the vertical rod is the same as the discharge end of the end part of the second connecting rod in height, and an air gap structure is arranged between the discharge end of the end part of the vertical rod and the discharge end of the end part of the second connecting rod.

6. An integrated overvoltage protector as set forth in claim 1 wherein: the insulated wire comprises a colloid hose positioned inside, a plurality of copper core wires are uniformly attached to the outer wall of the colloid hose, and an insulating layer is wrapped outside the copper core wires.