CN218918767U

CN218918767U - Fusion tube barrel

Info

Publication number: CN218918767U
Application number: CN202222410808.XU
Authority: CN
Inventors: 唐健华; 杨庆议; 王荣
Original assignee: Xiamen Shangchen Electric Power Technology Co ltd
Current assignee: Xiamen Shangchen Electric Power Technology Co ltd
Priority date: 2022-09-12
Filing date: 2022-09-12
Publication date: 2023-04-25
Anticipated expiration: 2032-09-12

Abstract

The utility model discloses a fuse tube which comprises a fuse tube, wherein a transition head is arranged at the left end of the fuse tube, a conductive copper plate is arranged at the bottom of the fuse tube, and a pressure release hole is arranged at the right end of the fuse tube. According to the utility model, through the matched use of the fuse tube, the transition head, the conductive copper plate and the pressure relief hole, the insulation property of the fuse tube can be improved by adopting a mode of pouring integral insulation epoxy resin, charged bodies can be completely and effectively isolated, breakdown discharge is avoided, the use effect and the service life are improved, and the following problems of the high-voltage vacuum contactor adopting a partition plate composite insulation mode in the current domestic electric power market are solved: 1. in the switching device electrifying operation process, as the partition board can not completely and effectively separate the electrified body, an air gap exists between the partition board and the partition board, so that the movable end of the vacuum arc-extinguishing chamber component is relatively close to the ground as a high-voltage end, the problem that the frame backboard of a product is easy to break down and discharge is caused, and the risk of weak insulation exists.

Description

Fusion tube barrel

Technical Field

The utility model relates to the technical field of fusion tubes, in particular to a fusion tube.

Background

At present, two schemes are commonly adopted in the insulation design application of a main loop of a high-voltage vacuum contactor: a composite insulating mode adopting an insulating partition plate structure is adopted, and a vacuum arc extinguishing chamber assembly, a conductive part and the like are assembled in a partition plate separating mode so as to meet the insulating requirements of interphase and ground; the utility model provides a mode that adopts full solid to seal insulating mode, seals the mode of whole return circuit electrically conductive piece totally to satisfy interphase and insulating requirement to ground, generally speaking, in the electric power market in China at present, the high voltage vacuum contactor that adopts baffle composite insulation mode has following problem: 1. in the electrifying operation process of the switch equipment, as the partition boards can not completely and effectively separate electrified bodies, an air gap exists between the partition boards, so that the movable end of the vacuum arc-extinguishing chamber assembly is relatively close to the ground as a high-voltage end, the frame backboard of the product is easy to break down and discharge, and the risk of weak insulation exists; 2. the products of the composite insulation of the partition boards are greatly influenced by the environment, such as pollution, condensation and the like, and the service life of the materials and the like severely restrict the performance of the products.

Disclosure of Invention

The utility model aims to provide a melting tube barrel, which has the advantage of long service life, and solves the problems of the prior high-voltage vacuum contactor adopting a partition plate composite insulation mode in the domestic electric power market that: 1. in the electrifying operation process of the switch equipment, as the partition boards can not completely and effectively separate electrified bodies, an air gap exists between the partition boards, so that the movable end of the vacuum arc-extinguishing chamber assembly is relatively close to the ground as a high-voltage end, the frame backboard of the product is easy to break down and discharge, and the risk of weak insulation exists; 2. the product of the composite insulation of the partition board is greatly influenced by the environment, such as pollution, condensation and the like, and the service life of the material and the like seriously restrict the performance of the product.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the fuse tube comprises a fuse tube, a transition head is arranged at the left end of the fuse tube, a conductive copper plate is arranged at the bottom of the fuse tube, and a pressure release hole is arranged at the right end of the fuse tube.

Preferably, the fuse tube is made of insulating epoxy resin, and is integrally cast.

Preferably, a reinforcing block is arranged at the bottom of the fuse tube, and a reinforcing through groove is formed in the surface of the reinforcing block.

Preferably, the conductive copper plate is L-shaped, and the surface of the conductive copper plate is provided with a through hole.

Preferably, the transition head is positioned at the left side of the inner cavity of the fuse tube, and the conductive copper plate is arranged in the fuse tube.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the matched use of the fuse tube, the transition head, the conductive copper plate and the pressure relief hole, the insulation property of the fuse tube can be improved by adopting a mode of pouring integral insulation epoxy resin, charged bodies can be completely and effectively isolated, breakdown discharge is avoided, the use effect and the service life are improved, and the following problems of the high-voltage vacuum contactor adopting a partition plate composite insulation mode in the current domestic electric power market are solved: 1. in the electrifying operation process of the switch equipment, as the partition boards can not completely and effectively separate electrified bodies, an air gap exists between the partition boards, so that the movable end of the vacuum arc-extinguishing chamber assembly is relatively close to the ground as a high-voltage end, the frame backboard of the product is easy to break down and discharge, and the risk of weak insulation exists; 2. the product of the composite insulation of the partition board is greatly influenced by the environment, such as pollution, condensation and the like, and the service life of the material and the like seriously restrict the performance of the product.

2. The fuse wire barrel integrally cast by the insulating epoxy resin has stable dimensional accuracy and excellent mechanical and electrical properties, and the device can be conveniently installed by arranging the reinforcing blocks and the reinforcing through grooves, and meanwhile, the structural strength is increased.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a fuse cartridge of the present utility model;

fig. 3 is a right side view of the fuse cartridge of the present utility model.

In the figure: 1. a fuse tube; 2. a transition head; 3. conductive copper plate; 4. and the pressure relief hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the fuse tube comprises a fuse tube 1, the fuse tube 1 is made of insulating epoxy resin, the fuse tube 1 is integrally cast, a reinforcing block is arranged at the bottom of the fuse tube 1, a reinforcing through groove is formed in the surface of the reinforcing block, the fuse tube 1 integrally cast by the insulating epoxy resin has stable dimensional accuracy and excellent mechanical and electrical properties, the device can be conveniently installed by arranging the reinforcing block and the reinforcing through groove, meanwhile, the structural strength is increased, a transition head 2 is arranged at the left end of the fuse tube 1, the transition head 2 is positioned at the left side of an inner cavity of the fuse tube 1, a conductive copper plate 3 is arranged in the fuse tube 1, the bottom of fuse tube 1 is provided with electrically conductive copper plate 3, electrically conductive copper plate 3's shape is L shape, the through-hole has been seted up on electrically conductive copper plate 3's surface, fuse tube 1's right-hand member is provided with pressure release hole 4, through fuse tube 1, transition head 2, electrically conductive copper plate 3 and pressure release hole 4's cooperation is used, adopt whole insulating epoxy to pour the mode, can improve the insulating nature of fuse tube 1, the complete effectual electrified body that cuts off, avoid the breakdown discharge, improve result of use and life, the high-pressure vacuum contactor of adopting baffle composite insulation mode has the following problem in the domestic electric power market at present has been solved: 1. in the electrifying operation process of the switch equipment, as the partition boards can not completely and effectively separate electrified bodies, an air gap exists between the partition boards, so that the movable end of the vacuum arc-extinguishing chamber assembly is relatively close to the ground as a high-voltage end, the frame backboard of the product is easy to break down and discharge, and the risk of weak insulation exists; 2. the product of the composite insulation of the partition board is greatly influenced by the environment, such as pollution, condensation and the like, and the service life of the material and the like seriously restrict the performance of the product.

When the fuse tube is used, the insulation performance of the fuse tube 1 can be improved by adopting a mode of pouring integral insulation epoxy resin, meanwhile, the fuse tube has stable dimensional accuracy and excellent mechanical and electrical properties, charged bodies are completely and effectively isolated, breakdown discharge is avoided, and the use effect and the service life are improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Fusion tube, including fuse tube (1), its characterized in that: the left end of the fuse wire barrel (1) is provided with a transition head (2), the bottom of the fuse wire barrel (1) is provided with a conductive copper plate (3), and the right end of the fuse wire barrel (1) is provided with a pressure relief hole (4);

the fuse wire cylinder (1) is made of insulating epoxy resin, and the fuse wire cylinder (1) is integrally cast.

2. The fusion tube of claim 1, wherein: the bottom of the fuse tube (1) is provided with a reinforcing block, and the surface of the reinforcing block is provided with a reinforcing through groove.

3. The fusion tube of claim 1, wherein: the conductive copper plate (3) is L-shaped, and a through hole is formed in the surface of the conductive copper plate (3).

4. The fusion tube of claim 1, wherein: the transition head (2) is positioned at the left side of the inner cavity of the fuse tube (1), and the conductive copper plate (3) is arranged in the fuse tube (1).