CN211556181U

CN211556181U - Tubular bus joint

Info

Publication number: CN211556181U
Application number: CN202020382244.1U
Authority: CN
Inventors: 龙腾; 辛万鹏
Original assignee: Boshine Jiangsu High Voltage Electric Co ltd
Current assignee: BUSHING(BEIJING)HV ELECTRIC Co.,Ltd.
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-09-22
Anticipated expiration: 2030-03-24

Abstract

The utility model provides a tubular busbar joint. The intermediate connecting cylinder comprises an intermediate connecting cylinder insulator, an intermediate connecting cylinder shielding net is embedded in the intermediate connecting cylinder insulator, a transition flow guide body is arranged inside the intermediate connecting cylinder insulator, and intermediate connecting body flanges are arranged at two ends of the intermediate connecting cylinder insulator; the insulating tube bus comprises an insulating tube bus middle conductive tube and an insulating tube bus insulating layer outside the insulating tube bus middle conductive tube, a silicon rubber plug is arranged at the front end of the insulating tube bus and is tightly pressed through an end cover outside the insulating tube bus insulating layer, the insulating tube bus middle conductive tube extends into the transition flow deflector, grooves are formed in two ends of the inner side of the transition flow deflector, and contact fingers are embedded into the grooves and used for achieving electric connection between the transition flow deflector and the insulating tube bus middle conductive tube. The utility model provides an insulating tube generating line intermediate head construction process complicated, the shortcoming that the performance can not obtain the guarantee.

Description

Tubular bus joint

The technical field is as follows:

the utility model relates to a tubular busbar joint belongs to electrical casing technical field.

Background art:

at present, a bus connector in a quick plugging mode is only used for connecting cables with small current, and comprises a cable plugging head. The rectangular bus can be conveniently connected with a plane lap joint bolt, but cannot be insulated. The laying of the cable often has an intermediate joint, and the cable joint needs field operation connection, so that the cable joint has environmental and technical requirements on field construction and insulation manufacturing, and is low in efficiency.

In addition, the insulating tube bus of other forms, or the intermediate head is not shielded and insulated, or connect through welding, crimping, plane connection mode then through wrapping up shielding insulation or adopting shielding section of thick bamboo to insulate, its technology is loaded down with trivial details, and site operation receives the environmental impact, and joint insulating properties can't guarantee.

The invention content is as follows:

the utility model aims at the problem that exists provides a pipe bus-bar joint, adopts the intermediate head high-speed joint method of prefabricated type plug insulating tube generating line to overcome the unable insulating shortcoming of rectangle generating line promptly, has overcome the loaded down with trivial details and the inefficiency shortcoming of many cable site operations again, and not only the current-carrying capacity is big, and site operation convenient and fast, insulating properties is excellent, erects to arrange beautifully. The defects that the construction process of the intermediate joint of the insulated pipe bus is complex and the performance cannot be guaranteed are overcome.

The above purpose is realized by the following technical scheme:

a tubular bus joint comprises an intermediate connecting cylinder and insulating tubular buses respectively connected with two ends of the intermediate connecting cylinder, wherein the intermediate connecting cylinder comprises an intermediate connecting cylinder insulator, an intermediate connecting cylinder shielding net is embedded in the intermediate connecting cylinder insulator, a transition flow guide body is arranged inside the intermediate connecting cylinder insulator, and intermediate connecting body flanges are arranged at two ends of the intermediate connecting cylinder insulator; the insulation tube bus comprises an insulation tube bus middle conductive tube and an insulation tube bus insulating layer outside the insulation tube bus middle conductive tube, a silicon rubber plug is arranged at the front end of the insulation tube bus and is tightly pressed through an end cover outside the insulation tube bus insulating layer, the insulation tube bus middle conductive tube extends into the transition flow deflector, grooves are formed in two ends of the inner side of the transition flow deflector, and contact fingers are embedded into the grooves and used for achieving electric connection between the transition flow deflector and the insulation tube bus middle conductive tube.

The pipe bus joint, the intermediate connector flange and the end cover are connected through bolts.

The tubular bus joint is characterized in that a spring for pressing the insulating tubular bus plug is arranged in the end cover.

And a Y-shaped sealing ring is arranged between the end cover and the insulating layer of the insulating tube bus.

And an O-shaped sealing ring is arranged between the middle connector flange and the end cover.

Has the advantages that:

the intermediate joint quick connection method adopting the prefabricated plug-pull insulating tube bus overcomes the defects that the rectangular bus cannot be insulated and the defects of complexity and low efficiency of field construction of a plurality of cables, and has the advantages of large current-carrying capacity, convenience and quickness in field construction, excellent insulating property and attractive erection and arrangement. The defects that the construction process of the intermediate joint of the insulated pipe bus is complex and the performance cannot be guaranteed are overcome.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an insulating tube bus insulating section; 2. a silicon rubber plug; 3. a middle conductive tube of the insulating tube bus; 4. an intermediate connecting cylinder insulator; 5. a transition flow conductor; 6. a contact finger; 7. the middle connecting cylinder shields the net; 8. a spring; 9. an end cap; 10. a Y-shaped seal ring; 11. an O-shaped sealing ring.

The specific implementation mode is as follows:

as shown in fig. 1: the pipe bus joint comprises an intermediate connecting cylinder and an insulating pipe bus respectively connected with two ends of the intermediate connecting cylinder, wherein the intermediate connecting cylinder comprises an intermediate connecting cylinder insulator 4, an intermediate connecting cylinder shielding net 7 is embedded in the intermediate connecting cylinder insulator, a transition flow guide body 5 is arranged inside the intermediate connecting cylinder insulator, and intermediate connector flanges are arranged at two ends of the intermediate connecting cylinder insulator; the insulating tube bus comprises an insulating tube bus middle conductive tube 3 and an insulating tube bus insulating layer 4 outside the insulating tube bus, a silicon rubber plug 2 is arranged at the front end of the insulating tube bus and is tightly pressed through an end cover 9 outside the insulating tube bus insulating layer, the insulating tube bus middle conductive tube extends into the transition flow deflector, grooves are formed in two ends of the inner side of the transition flow deflector, and contact fingers 6 are inlaid in the grooves and used for achieving the transition flow deflector and electrically connecting the insulating tube bus middle conductive tubes.

As shown in fig. 1:

in fig. 1, 1 is an insulating part of an insulated pipe bus, which is integrated with a transition current carrier.

In fig. 1, 2 are silicon rubber plugs, which are located at the terminal positions at both ends of the insulated tube bus, and are formed into a whole with the insulated tube bus by forming a certain conical surface through a vulcanization process. The volume size of the silicon rubber plug is larger than that of the inner conical surface of the intermediate connecting cylinder.

In fig. 1, 3 is a middle conductive tube of the insulated tubular bus.

Fig. 1, 4, is the intermediate connector barrel insulator: the novel flange is formed by curing epoxy resin and a curing agent in a die according to a certain proportion, and a flange surface and a bolt hole are preset on the outer sides of two ends. Two ends of the insulating tube bus are provided with a smooth conical surface which is used for being tightly matched with the conical surface of the silicon rubber plug on the insulating tube bus.

In fig. 1, 5 is a transition flow guiding body, the transition flow guiding body inside the intermediate connecting cylinder is a copper pipe or an aluminum pipe, and the inner diameter is slightly larger than the outer diameter of the copper (aluminum) pipe of the insulating pipe bus. The inner part is provided with a groove, the contact fingers are embedded in the groove, and the number of the contact fingers is determined according to the current.

In fig. 1, 6 is a contact finger: and the transition connector is used for connecting the insulating tube bus and the intermediate connecting tube conductor.

In fig. 1, 7 is an intermediate connecting cylinder shielding net: the lead wire is grounded in the intermediate connecting cylinder insulator, so that insulation shielding is realized.

In fig. 1, 8 is a spring: the end cover is connected with the middle connecting cylinder through a bolt, pushing force is applied to the spring, and the spring pushes the silicon rubber plug on the insulating tube bus to enable the silicon rubber plug to be tightly matched with the conical surface of the middle connecting cylinder.

In fig. 1, 9 is an end cap: the metal piece is adopted for pressing the silicon rubber plugs on the insulated pipe buses, and the silicon rubber plugs on the insulated pipe buses are tightly matched with the conical surfaces of the middle connecting cylinders through the thrust of the built-in springs. The end cover is provided with bolt holes connected with the bolt holes of the middle connecting cylinder, and the inner circular surface of the end cover is provided with grooves for embedding Y-shaped sealing rings.

In fig. 1, 10 is a Y-shaped seal ring: axial sealing to prevent water immersion.

In fig. 1, 11 is an O-ring: and sealing the end face of the flange.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme consisting of the equivalent replacement of the technical features. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.

Claims

1. A tubular busbar joint is characterized in that: the intermediate connecting cylinder comprises an intermediate connecting cylinder insulator, an intermediate connecting cylinder shielding net is embedded in the intermediate connecting cylinder insulator, a transition flow guide body is arranged in the intermediate connecting cylinder insulator, and intermediate connector flanges are arranged at two ends of the intermediate connecting cylinder insulator; the insulation tube bus comprises an insulation tube bus middle conductive tube and an insulation tube bus insulating layer outside the insulation tube bus middle conductive tube, a silicon rubber plug is arranged at the front end of the insulation tube bus and is tightly pressed through an end cover outside the insulation tube bus insulating layer, the insulation tube bus middle conductive tube extends into the transition flow deflector, grooves are formed in two ends of the inner side of the transition flow deflector, and contact fingers are embedded into the grooves and used for achieving electric connection between the transition flow deflector and the insulation tube bus middle conductive tube.

2. The tubular busbar joint of claim 1, wherein: the middle connecting body flange is connected with the end cover through a bolt.

3. The tubular busbar joint of claim 1, wherein: and a spring for pressing the insulating tube bus plug is arranged in the end cover.

4. The tubular busbar joint of claim 1, wherein: and a Y-shaped sealing ring is arranged between the end cover and the insulating layer of the insulating tube bus.

5. The tubular busbar joint of claim 1, wherein: and an O-shaped sealing ring is arranged between the middle connector flange and the end cover.