CN205666079U

CN205666079U - Insulating bus bar

Info

Publication number: CN205666079U
Application number: CN201620412765.0U
Authority: CN
Inventors: 侯强; 余乐富
Original assignee: ZHEJIANG RVZHI ELECTRIC TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG RVZHI ELECTRIC TECHNOLOGY Co Ltd
Priority date: 2016-05-09
Filing date: 2016-05-09
Publication date: 2016-10-26
Anticipated expiration: 2026-05-09

Abstract

The utility model discloses an insulating bus bar, a serial communication port, insulating bus bar includes that circular tubulose electric conductor and cover are in the outside collapsible tube of circular tubulose electric conductor, the collapsible tube includes first semi -conductive layer, plastics class insulating layer and second semi -conductive layer from inside to outside in proper order, first semi -conductive layer, plastics class insulating layer and second semi -conductive layer are by the integrative extrusion moulding of extruder. The utility model discloses an insulating bus bar's insulating high voltage resistance is good.

Description

A kind of isolated bus

Technical field

This utility model relates to a kind of isolated bus.

Background technology

The insulation processing technology of insulative tubular bus bar products is that multiple link step makes in the market:

1, it is wrapped with semiconductive shielding layer on round tubular electric conductor surface；

2, overlap or wrapping insulation layer on Semiconducting surface layer；

3, it is wrapped with semiconductive shielding layer at surface of insulating layer.

As it is shown in figure 1, this processing technology the most all must have a space, and in each layer of manufacturing process also Cannot avoid the existence of dust, whole finished product bus also far above national standard, is so existed by the partial discharge quantity of product No small potential safety hazard is had on insulation proof voltage.

Utility model content

The purpose of this utility model is to provide a kind of isolated bus, to improve the insulation proof voltage performance of isolated bus.

For achieving the above object, this utility model provides a kind of isolated bus, and described isolated bus includes round tubular leading Electricity body and be enclosed within the collapsible tube outside described round tubular electric conductor, described collapsible tube includes the first semiconductive the most successively Layer, Plastic insulating barrier and the second semi-conductive layer, described first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer are served as reasons Extruder one extrusion molding.

Preferably, the thickness of described first semi-conductive layer is 0.4～0.8 millimeter, and the thickness of described Plastic insulating barrier is 7 ～8 millimeters, the thickness of described second semi-conductive layer is 1～1.5 millimeter, a diameter of 60 millimeters of described round tubular electric conductor.

This utility model method has the advantage that

This utility model isolated bus uses the collapsible tube of one extrusion molding as shell, it is possible to prevent the first semiconductive Layer, fall between Plastic insulating barrier and the second semi-conductive layer ash, improve isolated bus insulation proof voltage performance.

Accompanying drawing explanation

Fig. 1 is a kind of detailed description of the invention of the Wrapping formed isolated bus of prior art.

Fig. 2 is a kind of detailed description of the invention (extrusion molding) of collapsible tube preparation method of the present utility model.

Fig. 3 is the longitudinal section view of this utility model isolated bus.

Fig. 4 is a kind of detailed description of the invention (contraction) of this utility model collapsible tube preparation method.

Detailed description of the invention

Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.

Embodiment 1

As in figure 2 it is shown, by the first semiconductive material granule, Plastic insulating material particle and the second semiconductive material granule Add hot-extrudable successively from extruder and cover the outside at tubular die, and making the first semiconductive material be formed at described tubulose The outer surface of mould becomes the first semi-conductive layer, makes Plastic insulant be formed at outside described first semi-conductive layer to become to mould Material class insulating barrier, the outside making the second semiconductive material be formed at described Plastic insulating barrier becomes the second semi-conductive layer, obtains Internal diameter is the collapsible tube of 95 millimeters, and the thickness of the first semi-conductive layer is 0.4 millimeter, and the thickness of described Plastic insulating barrier is 8 millis Rice, the thickness of described second semi-conductive layer is 1.5 millimeters.

As shown in Figure 4, after collapsible tube is carried out radiation treatment, it is enclosed within outside the round tubular electric conductor of a diameter of 60 millimeters Portion, then is heated to making described collapsible tube shrink to it, obtains isolated bus as shown in Figure 3.

Measuring the proof voltage of isolated bus of the present utility model, as a example by 12KV product, power frequency is dispatched from the factory 1min withstanding voltage 50KV can be reached pass through, and the Apparent discharge magnitude that product is under 1.05Um/ √ 3 voltage is again smaller than 5PC, same higher than on market The isolated bus of kind.

In Fig. 1,1 is semiconductor layer, and 2 is insulating barrier, and 3 is semiconductor layer, and 4 is round tubular electric conductor；

In Fig. 2,5 is extruder, and 6 is mould, and 7 is collapsible tube, and 8 is Equations of The Second Kind conductive material, and 9 is Plastic insulation material Material, 10 is the first semi-conducting material, and 11 is extrusion direction；

In Fig. 3,12 is the second semi-conductive layer, and 13 is Plastic insulating barrier, and 14 is the first semi-conductive layer, and 15 is round tubular Electric conductor；

In Fig. 4, before 16 for shrinking, after 17 for shrinking, 18 is round tubular electric conductor.

Although, the most with general explanation and specific embodiment, this utility model is made detailed description, but On the basis of this utility model, can make some modifications or improvements it, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belong to this utility model and want Seek the scope of protection.

Claims

1. an isolated bus, it is characterised in that described isolated bus includes round tubular electric conductor and is enclosed within described round tube Collapsible tube outside shape electric conductor, described collapsible tube includes the first semi-conductive layer, Plastic insulating barrier and the most successively Two semi-conductive layers, described first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer are by extruder one extrusion molding.

Isolated bus the most according to claim 1, it is characterised in that the thickness of described first semi-conductive layer is 0.4～0.8 Millimeter, the thickness of described Plastic insulating barrier is 7～8 millimeters, and the thickness of described second semi-conductive layer is 1～1.5 millimeter, described A diameter of 60 millimeters of round tubular electric conductor.