CN105301297A

CN105301297A - End shield junction box with double shielding function

Info

Publication number: CN105301297A
Application number: CN201510857211.1A
Authority: CN
Inventors: 胡维兴; 陈伟中; 楼狄; 余发辉; 肖云勇; 刘凤琳; 叶新林; 蔡凌霄; 王光祥; 曹根深; 曹超; 张武波; 杜合; 胡志鹏; 郭立灿; 厉洋
Original assignee: HANGZHOU XIHU INSTITUTE OF ELECTRONIC RESEARCH
Current assignee: HANGZHOU XIHU INSTITUTE OF ELECTRONIC RESEARCH
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2016-02-03
Anticipated expiration: 2035-11-30
Also published as: CN105301297B

Abstract

The invention discloses an end shield junction box with a double shielding function. The junction box comprises an eight-core socket flange, a wiring column, a single-core socket flange, an outer shielding box, a plastic box, an inner shielding box, a plastic cover, a multi-core aviation connector, an outer shielding box cover, an inner shielding box cover, an insulating plastic ring, a spring, an inner shielding elastic sleeve, a core wire spring pin, an inner shielding socket, an inner shielding socket sleeve, a single-core insulating sleeve, and a single-core insulating sleeve. The junction box largely reduces the length of connecting wires. As a middle conversion device of an end shield connecting wire, the junction box is convenient and simple in operation, and the double shielding function of the junction box can largely improve the safety and anti-interference capability of experiments.

Description

A kind of end shield junction box with double shield function

Technical field

The invention belongs to electric device maintenance technical field, be specifically related to a kind of end shield junction box with double shield function.

Background technology

In the test item that current power transformer carries out, for Dielectric Loss Test, insulation resistance test, need Transformer Bushing Tap wiring, generally directly receive power transformer automatic detection device from Transformer Bushing Tap by common single shielded cable, double shield function is not possessed due to line length, wiring is abnormal loaded down with trivial details and have very large potential safety hazard, so invention one can shorten line length, simple light and there is double shield function, for the branch means between joint sleeve end shield and power transformer automatic detection device, be significant.

Summary of the invention

The present invention is directed to the deficiencies in the prior art, propose a kind of end shield junction box with double shield function.

A kind of end shield junction box with double shield function of the present invention, comprises multi-core socket flange, binding post, single core socket flange, external shield box, plastic casing, inner screening box, vinyl cover, multicore air plug, external shield lid, inner screening lid, ambroin ring, spring, inner screening resilient sleeve, heart yearn spring needle, inner screening socket, inner screening socket sleeve, single core insulation sleeve and single core insulation cover same;

Shielding box is made up of end shield junction box internal shield, end shield junction box insulation course and external shielding layer, multicore air plug and single core are inserted and are arranged in shielding box, the top that multicore air plug and single core are inserted is no more than the top of external shield lid, inner screening box and inner screening lid are connected and form end shield junction box internal shield, and plastic casing and vinyl cover are connected and form end shield junction box insulation course; End shield junction box insulation course is arranged on outside ground floor screen layer; External shield box and external shield lid are connected formation external shielding layer; External shielding layer is arranged on outside end shield junction box; Multi-core socket flange, single core socket flange are fixed on external shield lid by nut; Flange is connected with vinyl cover, external shield lid by ambroin ring; Binding post is connected with external shield lid; Each core of multicore air plug is connected with a heart yearn spring needle respectively.

Described single core is inserted and is comprised spring, inner screening resilient sleeve, heart yearn spring needle, inner screening deck, inner screening socket card cylinder, single core insulation sleeve and single core insulation sleeve;

Step is provided with outside described heart yearn spring needle, first single core insulation sleeve parcel heart yearn spring needle step is with upper part, second single core insulation sleeve parcel heart yearn spring needle step is with lower part, second single core insulation sleeve is wrapped in shield card cover for seat cylinder, shield card cover for seat cylinder and first single core insulation cover are fixed among inner screening deck, inner screening deck lower end is fixed on shielding box, inner screening socket upper end is connected with inner screening resilient sleeve by spring, and inner screening resilient sleeve is arranged on below vinyl cover.

The benefit that the present invention produces: the present invention substantially reduces the line length of wiring, as the intermediate conversion device of end shield wiring, the convenient and simple for operation and double shield function of its uniqueness can improve the security of experiment greatly, and antijamming capability.

Accompanying drawing explanation

Fig. 1 is one-piece construction schematic diagram of the present invention;

Fig. 2 is cut-open view of the present invention.

Embodiment

As shown in Figure 1 and Figure 2, there is an end shield junction box for double shield function, comprise eight core socket flange 1, binding post 2, single core socket flange 3, external shield box 4, plastic casing 5, inner screening box 6, vinyl cover 7, multicore air plug 8, external shield lid 9, inner screening lid 10, ambroin ring 11, spring 12, inner screening resilient sleeve 13, heart yearn spring needle 14, inner screening socket 15, inner screening socket sleeve 16, single core insulation sleeve 17 and single core insulation cover with 18.

Shielding box is made up of end shield junction box internal shield, end shield junction box insulation course and external shielding layer, multicore air plug 8 and single core are inserted and are arranged in shielding box, the top that multicore air plug 8 and single core are inserted is no more than the top of external shield lid, inner screening box 6 and inner screening lid 10 are connected and form end shield junction box internal shield, and plastic casing 5 and vinyl cover 7 are connected and form end shield junction box insulation course; End shield junction box insulation course is arranged on outside ground floor screen layer; External shield box 4 and external shield lid 9 are connected formation external shielding layer; External shielding layer is arranged on outside end shield junction box; The single core socket flange 3 of eight core socket flange 1, eight is fixed on external shield lid by nut.Flange is connected with vinyl cover 7, external shield lid 9 by ambroin ring 11; Binding post 2 is connected with external shield lid 9; Eight cores of multicore air plug 8 are connected with a heart yearn spring needle respectively;

Described single core is inserted and is comprised spring 12, inner screening resilient sleeve 13, heart yearn spring needle 14, inner screening deck 15, inner screening socket card cylinder 16, single core insulation sleeve 17 and single core insulation sleeve 18;

Step is provided with outside described heart yearn spring needle 14, first single core insulation sleeve 18 wraps up heart yearn spring needle step with upper part, second single core insulation sleeve 17 wraps up heart yearn spring needle step with lower part, second single core insulation sleeve 17 is wrapped in shield card cover for seat cylinder 16, shield card cover for seat cylinder 16 and first single core insulation sleeve 18 are fixed among inner screening deck 15, inner screening deck 15 lower end is fixed on shielding box 6, inner screening socket 15 upper end is connected with inner screening resilient sleeve 13 by spring 12, and inner screening resilient sleeve 1 is arranged on below vinyl cover 7.

Claims

1. there is an end shield junction box for double shield function, comprise eight core socket flange, binding post, single core socket flange, external shield box, plastic casing, inner screening box, vinyl cover, multicore air plug, external shield lid, inner screening lid, ambroin ring, spring, inner screening resilient sleeve, heart yearn spring needle, inner screening socket, inner screening socket sleeve, single core insulation sleeve and single core insulation cover same;

It is characterized in that: shielding box is made up of end shield junction box internal shield, end shield junction box insulation course and external shielding layer, multicore air plug and single core are inserted and are arranged in shielding box, the top that multicore air plug and single core are inserted is no more than the top of external shield lid, inner screening box and inner screening lid are connected and form end shield junction box internal shield, and plastic casing and vinyl cover are connected and form end shield junction box insulation course; End shield junction box insulation course is arranged on outside ground floor screen layer; External shield box and external shield lid are connected formation external shielding layer; External shielding layer is arranged on outside end shield junction box; Multi-core socket flange, single core socket flange are fixed on external shield lid by nut; Flange is connected with vinyl cover, external shield lid by ambroin ring; Binding post is connected with external shield lid; Each core of multicore air plug is connected with a heart yearn spring needle respectively.

2. a kind of end shield junction box with double shield function according to claim 1, is characterized in that: described single core is inserted and comprised spring, inner screening resilient sleeve, heart yearn spring needle, inner screening deck, inner screening socket card cylinder, single core insulation sleeve and single core insulation sleeve;