CN104409876A

CN104409876A - Sealing connector for high-voltage coaxial cable

Info

Publication number: CN104409876A
Application number: CN201410774308.1A
Authority: CN
Inventors: 周智
Original assignee: Institute of Fluid Physics of CAEP
Current assignee: Institute of Fluid Physics of CAEP
Priority date: 2014-12-16
Filing date: 2014-12-16
Publication date: 2015-03-11
Anticipated expiration: 2034-12-16
Also published as: CN104409876B

Abstract

The invention discloses a sealing connector for a high-voltage coaxial cable. The sealing connector comprises an inner conductor jacket (1), a jacket pressure cap (2), a contact pin (3) and a sealing ring (4), wherein the inner conductor jacket (1) is mounted outside an inner conductor (5) in a sleeving manner; the rear end of the inner conductor jacket (1) is wedged between a cable insulating layer (6) and the inner conductor (5); a conical sharpnel is arranged at the front end of the inner conductor jacket (1); the jacket pressure cap (2) is mounted outside the inner conductor jacket (1) in a sleeving manner; the inner wall of the jacket pressure cap (2) has a conical surface; the rear end of the contact pin (3) is mounted outside the jacket pressure cap (2) in a sleeving manner; the sealing ring (4) is arranged between the rear end face of the contact pin (3) and the front end face of a cable insulating layer (6). The sealing connector disclosed by the invention has the benefits that good electric contact can be guaranteed, good sealing for transformer oil is realized while quick connecting is realized; the cost of products is reduced. The sealing connector is simple in design, convenient to mount and labor-saving and time-saving.

Description

A kind of high-pressure coaxial cable sealed connector

Technical field

The present invention relates to cable-to-cable connector technical field, particularly, relate to a kind of high-pressure coaxial cable sealed connector.

Background technology

High-pressure coaxial cable is made up of the cable insulation of inner wire and inner wire outside, its effect connects various high-pressure installation, and high-pressure installation usually uses transformer oil as insulated working medium, because the inner wire of high-pressure coaxial cable is formed by multiply copper conductor system of twisting, gap is there is between each stock, if plug connector is directly installed and does not seal, transformer oil can between each high-pressure installation seepage.Seal, need hermetically-sealed construction and inner wire to be carried out good fixing.And existing cable completes the connection of contact pin and cable core with the mode be mostly between plug connector by welding, Joining Technology is comparatively loaded down with trivial details, inconvenient, and is not suitable for the local operation not having heavy current welder.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of high-pressure coaxial cable sealed connector accomplished while realizing quick grafting transformer oil excellent sealing.

The present invention's adopted technical scheme that solves the problem is:

A kind of high-pressure coaxial cable sealed connector, comprise inner wire chuck, chuck pressure cap, contact pin and sealing ring, inner wire chuck is set in inner wire outside, between the rear end wedging cable insulation of inner wire chuck and inner wire, inner wire chuck back edge is the taper edge of a knife, space between cable insulation and inner wire can be wedged, inner wire chuck is fixed by the pressure that cable insulation deformation produces, the front end of inner wire chuck is taper shell fragment, the outer setting of inner wire chuck has external screw thread, chuck pressure cap is set in the outside of inner wire chuck, the inwall of chuck pressure cap is the taper surface matched with the taper shell fragment of inner wire chuck front end, the inwall of chuck pressure cap and the outer wall of chuck pressure cap are respectively arranged with internal thread and external screw thread, chuck pressure cap and inner wire chuck are threaded connection fixing, the taper shell fragment of the taper surface inwall extruding inner wire chuck of chuck pressure cap, inner wire is clamped by taper shell fragment, continue locking inner wire chuck and inner wire, make it to be completely fixed, the rear end of inwall contact pin has an after-opening cavity for accommodating chuck pressure cap, the inwall of this after-opening cavity is provided with internal thread, the rear end of contact pin is set in the outside of chuck pressure cap, contact pin and chuck pressure cap are threaded connection fixing, sealing ring is arranged between the rear end face of contact pin and the front end face of cable insulation, and the gap sealed between contact pin rear end face and cable insulation front end face, form a complete seal.The feature of this seal fixed structure is the interlocking between cable insulation, inner wire, inner wire chuck and chuck pressure cap, cable insulation deformation, inner wire are expanded and inner wire chuck is fixed by chuck pressure cap locking formation three road insurance, when stressed very greatly also can not and inner wire between be subjected to displacement the changing of the relative positions, ensure that install and Long-Time Service process in good seal.

Inner wire chuck and chuck pressure cap coordinate the structure of clamping inner wire while realization clamping inner wire, also coordinate the structure in space between inner wire chuck rear end wedging cable insulation and inner wire to achieve to be sealed in by inner wire the effect in inner wire chuck, and then coordinate contact pin to be fixed on the structure having a sealing ring to seal on chuck pressure cap, between contact pin rear end face and the front end face of cable insulation by screw thread, achieve the sealing of inner conductors, namely achieve being tightly connected of contact pin and cable.

The spike knocked in after suit inner wire chuck is also provided with in space between the copper cash of described inner wire, after suit inner wire chuck, spike is knocked in the space between inner wire copper cash, inner wire is expanded, the taper shell fragment deformation of inner wire chuck front end is strengthened fixing.

To sum up, the invention has the beneficial effects as follows:

1, the present invention is applicable to the electrical connection of high-pressure coaxial cable and high voltage device, can ensure good electricity contact, accomplish the excellent sealing to transformer oil while realizing quick grafting,

2, between contact pin with cable without the need to welding, eliminate assemble welding step, simple for structure, easy for installation, saving of work and time, reduces product cost.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Mark and corresponding parts title in accompanying drawing:

1-inner wire chuck, 2-chuck pressure cap, 3-contact pin, 4-sealing ring, 5-inner wire, 6-cable insulation.

Embodiment

Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.

Embodiment:

As shown in Figure 1, a kind of high-pressure coaxial cable sealed connector, comprise inner wire chuck 1, chuck pressure cap 2, contact pin 3 and sealing ring 4, it is outside that inner wire chuck 1 is set in inner wire 5, between the rear end wedging cable insulation 6 of inner wire chuck 1 and inner wire 5, inner wire chuck 1 back edge is the taper edge of a knife, space between cable insulation 6 and inner wire 5 can be wedged, inner wire chuck 1 is fixed by the pressure that cable insulation 6 deformation produces, the front end of inner wire chuck 1 is taper shell fragment, the outer setting of inner wire chuck 1 has external screw thread, chuck pressure cap 2 is set in the outside of inner wire chuck 1, the inwall of chuck pressure cap 2 is the taper surface matched with the taper shell fragment of inner wire chuck 1 front end, the inwall of chuck pressure cap 2 and the outer wall of chuck pressure cap 2 are respectively arranged with internal thread and external screw thread, chuck pressure cap 2 and inner wire chuck 1 are threaded connection fixing, the taper shell fragment of the taper surface inwall extruding inner wire chuck 1 of chuck pressure cap 2, inner wire 5 is clamped by taper shell fragment, continue locking inner wire chuck 1 and inner wire 5, make it to be completely fixed, the rear end of inwall contact pin 3 has an after-opening cavity for accommodating chuck pressure cap 2, the inwall of this after-opening cavity is provided with internal thread, the rear end of contact pin 3 is set in the outside of chuck pressure cap 2, contact pin 3 and chuck pressure cap 2 are threaded connection fixing, sealing ring 4 is arranged between the rear end face of contact pin 3 and the front end face of cable insulation 6, and the gap sealed between contact pin 3 rear end face and cable insulation 6 front end face, form a complete seal.The feature of this seal fixed structure is the interlocking between cable insulation 6, inner wire 5, inner wire chuck 1 and chuck pressure cap 2, cable insulation 6 deformation, inner wire 5 are expanded and chuck pressure cap 2 lock formation three road insurance inner wire chuck 1 is fixed, when stressed very greatly also can not and inner wire 5 between be subjected to displacement the changing of the relative positions, ensure that install and Long-Time Service process in good seal.

Inner wire chuck 1 and chuck pressure cap 2 coordinate the structure of clamping inner wire 5 while realization clamping inner wire 5, also coordinate the structure in space between inner wire chuck 1 rear end wedging cable insulation 6 and inner wire 5 to achieve to be sealed in by inner wire 5 effect in inner wire chuck 1, and then coordinate contact pin 3 to be fixed on the structure having a sealing ring 4 to seal on chuck pressure cap 2, between contact pin 3 rear end face and the front end face of cable insulation 6 by screw thread, achieve the sealing of inner conductors 5, namely achieve being tightly connected of contact pin 3 and cable.

The spike knocked in after suit inner wire chuck 1 is also provided with in space between the copper cash of described inner wire 5, after suit inner wire chuck 1, spike is knocked in the space between inner wire 5 copper cash, inner wire 5 is expanded, the taper shell fragment deformation of inner wire chuck 1 front end is strengthened fixing.

First extruded by specific purpose tool in installation process, by space between inner wire chuck 1 rear end wedging cable insulation 6 and inner wire 5, inner wire chuck 1 is fixed by the pressure that cable insulation 6 deformation produces; Then a little spike is knocked in the space between each strand of inner wire 5, inner wire 5 is expanded, and the shell fragment of inner wire chuck 1 front end tightly binds round thereupon deformation on inner wire 5; Be that the chuck pressure cap 2 of taper is fixed on inner wire chuck 1 by screw thread again by a front inner wall, its conical inboard wall extrudes chuck shell fragment further, continues locking inner wire chuck 1 and inner wire 5, makes it to be completely fixed; Finally a contact pin 3 is fixed on chuck pressure cap 2 by screw thread, bottom contact pin 3, has a sealing ring 4 to be pressed on cable insulation 6 end face, form a complete seal.

As mentioned above, the present invention can be realized preferably.

Claims

1. a high-pressure coaxial cable sealed connector, it is characterized in that, comprise inner wire chuck (1), chuck pressure cap (2), contact pin (3) and sealing ring (4), it is outside that inner wire chuck (1) is set in inner wire (5), between rear end wedging cable insulation (6) of inner wire chuck (1) and inner wire (5), the front end of inner wire chuck (1) is taper shell fragment, chuck pressure cap (2) is set in the outside of inner wire chuck (1), the inwall of chuck pressure cap (2) is the taper surface matched with the taper shell fragment of inner wire chuck (1) front end, chuck pressure cap (2) and inner wire chuck (1) are threaded connection fixing, the rear end of contact pin (3) is set in the outside of chuck pressure cap (2), contact pin (3) and chuck pressure cap (2) are threaded connection fixing, sealing ring (4) is arranged between the rear end face of contact pin (3) and the front end face of cable insulation (6), and the gap sealed between contact pin (3) rear end face and cable insulation (6) front end face.

2. a kind of high-pressure coaxial cable sealed connector according to claim 1, is characterized in that, is also provided with the spike knocked in after suit inner wire chuck (1) in the space between the copper cash of described inner wire (5).