CN205140596U - Coaxial cable - Google Patents

Abstract

The utility model discloses a coaxial cable, include: the inner conductor, the parcel the semiconduction band of inner conductor, the parcel the first insulation layer of semiconduction band, the parcel the two -sided area that blocks water of first semiconduction on first insulation layer, the parcel the two -sided outer conductor inlayer that blocks water the area of first semiconduction, the parcel the two -sided area that blocks water of second semiconduction of outer conductor inlayer, the parcel the outer conductor in the two -sided area that blocks water of second semiconduction is outer, the parcel the two -sided area that blocks water of the outer third semiconduction of outer conductor, the parcel the two -sided second insulating layer that blocks water the area of third semiconduction, the parcel the oversheath of second insulating layer, the parcel the conducting coating of oversheath. The utility model discloses between two -layer outer conductor and the skin all block water the area around the package and strengthen the cable block -water performance, the electromagnetic field is including closed between the outer conductor simultaneously for the radiation loss is little, and it is little influenced by external disturbance.

Description

A kind of coaxial cable

Technical field

The utility model relates to cable.

Background technology

Coaxial cable has referred to two concentric conductors, and conductor and screen share the cable in same axle center.Be usually used in the connection between equipment and equipment, or be applied in bus-network topology.Compared with twisted-pair feeder, the antijamming capability of coaxial cable is strong, advantages of good shielding performance, transmission data stabilization, and it need not be connected on hub or switch and can use.

The copper conductors that modal coaxial cable is isolated by insulating material forms, and is another layer of ring shaped conductor and insulator thereof in the outside of nexine insulating material.Exist: water preventing ability is poor, radiation loss is comparatively large, easily by shortcomings such as external interference.

Summary of the invention

The purpose of this utility model is to provide a kind of coaxial cable, and block-water performance is good, is enclosed between internal and external conductor by electromagnetic field simultaneously.

The technical scheme realizing above-mentioned purpose is:

A kind of coaxial cable, comprising:

Inner wire;

Wrap up the semiconductive band of described inner wire;

Wrap up the first insulating barrier of described semiconductive band;

Wrap up the two-sided waterstop of the first semiconductive of described first insulating barrier;

Wrap up the outer conductor internal layer of the two-sided waterstop of described first semiconductive;

Wrap up the two-sided waterstop of the second semiconductive of described outer conductor internal layer;

The outer conductor wrapping up the two-sided waterstop of described second semiconductive is outer;

Wrap up the two-sided waterstop of outer field 3rd semiconductive of described outer conductor;

Wrap up the second insulating barrier of the two-sided waterstop of described 3rd semiconductive;

Wrap up the oversheath of described second insulating barrier; And

Wrap up the conductive coating of described oversheath.

In above-mentioned coaxial cable, described first insulating barrier and described second insulating barrier are made by organosilane crosslinked polyethylene.

The beneficial effects of the utility model are:

The utility model by the double-deck outer conductor shielding construction of design, between two-layer outer conductor and all wrapped waterstop of skin strengthen cable block-water performance, electromagnetic field is enclosed between internal and external conductor simultaneously, makes radiation loss little, affects little by external interference.

Accompanying drawing explanation

Fig. 1 is the structure chart of coaxial cable of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Refer to Fig. 1, coaxial cable of the present utility model, comprising: the two-sided waterstop of inner wire 1, first insulating barrier 2, first semiconductive 3, the two-sided waterstop of outer conductor internal layer 4, second semiconductive 5, outer conductor skin 6, the 3rd semiconductive two-sided waterstop 7, second insulating barrier 8, oversheath 9, conductive coating 10 and semiconductive band 11.

Semiconductive band 11 wraps up inner wire 1.Semiconductive band 11 plays a role as 1) balanced conductor electric field, prevents electricity tree and destroys insulating barrier.2) avoid extruding insulation to be embedded in conductor gap, not only cause waste of material, and external diameter not rounding can be caused, and cause the quality of postorder.

First insulating barrier 2 wraps up semiconductive band 11.

The two-sided waterstop 3 of first semiconductive wraps up the first insulating barrier 2.Outer conductor internal layer 4 wraps up the outer conductor internal layer of the two-sided waterstop 3 of the first semiconductive.The two-sided waterstop 5 of second semiconductive wraps up outer conductor internal layer 4.The two-sided waterstop 5 of outer 6 parcel the second semiconductive of outer conductor.The two-sided waterstop 7 of 3rd semiconductive wraps up outer conductor skin 6.By designing double-deck outer conductor shielding construction, between two-layer outer conductor and all wrapped waterstop of skin strengthen cable block-water performance, electromagnetic field is enclosed between internal and external conductor, therefore radiation loss is little, affects little by external interference.

Second insulating barrier 8 wraps up the two-sided waterstop 7 of the 3rd semiconductive.Oversheath 9 wraps up the second insulating barrier 8.Conductive coating 10 wraps up oversheath 9.In the present embodiment, the first insulating barrier 2 and the second insulating barrier 8 are made by organosilane crosslinked polyethylene.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present utility model, should be limited by each claim.

Claims (2)

1. a coaxial cable, is characterized in that, comprising:

Inner wire;

Wrap up the semiconductive band of described inner wire;

Wrap up the first insulating barrier of described semiconductive band;

Wrap up the two-sided waterstop of the first semiconductive of described first insulating barrier;

Wrap up the outer conductor internal layer of the two-sided waterstop of described first semiconductive;

Wrap up the two-sided waterstop of the second semiconductive of described outer conductor internal layer;

The outer conductor wrapping up the two-sided waterstop of described second semiconductive is outer;

Wrap up the two-sided waterstop of outer field 3rd semiconductive of described outer conductor;

Wrap up the second insulating barrier of the two-sided waterstop of described 3rd semiconductive;

Wrap up the oversheath of described second insulating barrier; And

Wrap up the conductive coating of described oversheath.

2. coaxial cable according to claim 1, is characterized in that, described first insulating barrier and described second insulating barrier are made by organosilane crosslinked polyethylene.