CN201440348U

CN201440348U - Water-resisting coaxial cable

Info

Publication number: CN201440348U
Application number: CN200920193158XU
Authority: CN
Inventors: 帅平跃
Original assignee: ZHEJIANG TIANJIE INDUSTRIAL Co Ltd
Current assignee: Zhejiang Tianjie Industrial Co., Ltd.
Priority date: 2009-08-27
Filing date: 2009-08-27
Publication date: 2010-04-21
Anticipated expiration: 2019-08-27

Abstract

The utility model relates to a water-resisting coaxial cable comprising an inner conductor, an insulating layer, an outer conductor and an outer sheath, wherein the outer conductor comprises an aluminum foil layer and a braiding layer; the inner conductor, the insulating layer, the aluminum foil layer, the braiding layer and the outer sheath are sequentially arranged from inside to outside along a radial direction; a resin adhering layer is covered between the inner conductor and the insulating layer; the insulating layer and the aluminum foil layer of the outer conductor are in self-adhering structures; and a factice filing layer is coated between the outer conductor and the outer sheath. The utility model increases the resin adhering layer between the inner conductor and the insulating layer of the cable and the factice filing layer between the outer conductor and the outer sheath, thereby enabling the integral cable to form an organic integer and obviously improving the bending property, the extrusion resistance and water prevention of the cable. The utility model has simple implementing method and is suitable for 75 omega foamed polyethylene to braid an outer conductor radio-frequency coaxial cable in an insulating way and beneficial to promote the popularization and the development of the application of a main system (a common antenna television system) of the cable and a special dampproof and waterproof place.

Description

Coaxial cable blocks water

(1) technical field

The utility model relates to a kind of coaxial cable that blocks water.

(2) background technology

In the high-frequency transmission network, the state of oxidation of conductive surface is very big to the influence of the high-frequency transmission impact of performance, after even qualified conductor is used for cable, because of the infiltration of water also can cause the conductor oxidation to influence the transmission performance and the life-span thereof of cable, along with the human settlements growth in the living standard, the high request of language, image and the transmission signals that network broadband is had, require stable performance, the broadband frequency range is extended, the continuous development of long service life and science and technology is had higher requirement to the water resistance of coaxial cable.And there is not adhesive structure between existing coaxial cable insulating barrier and the conductor, the insulating barrier mechanical strength is low simultaneously, be easy to destroy, special in semi-finished product circulation process or finished product easily cause inner wire and insulating barrier relative displacement when laying and form the gap that can enter moisture or moisture, and make the inner wire surface oxidation, influence transmission performance, shorten cable useful life; In like manner, existing common coaxial cable outer conductor is loosely organized, and also there is easy oxidation in the surface, influences transmission performance, the deficiency of reduction of service life.

(3) summary of the invention

The technical problems to be solved in the utility model provides the coaxial cable that a kind of water resistance is good, transmission performance is stablized, have long service life.

For this reason, the utility model is taked following technical scheme:

A kind of coaxial cable that blocks water, include inner wire, insulating barrier, outer conductor, oversheath, described outer conductor is made up of aluminium foil layer and braid, described inner wire, insulating barrier, aluminium foil layer, braid, oversheath radially are provided with successively from inside to outside, are laminated with resin bonded laminate between described inner wire and the insulating barrier; The aluminium foil layer of described insulating barrier and outer conductor adopts the self-adhesion structure, smears the ointment packed layer between described outer conductor and the oversheath.

Described resin bonded laminate is bonded between inner wire and the insulating barrier.

Described ointment packed layer spreads upon between outer conductor and the oversheath.

The utility model has the advantages that: 1, between inner wire and insulating barrier, be laminated with resin bonded laminate, this resin bonded laminate not only is bonded as one with inner wire, and also be bonded as one with insulating barrier, thereby make cable in semi-finished product circulation process or finished product lay Shi Buhui and make when being subjected to external force extruding or transmission between inner wire and the insulating barrier and produce relative displacement and form the gap that can enter moisture or water, improved the water resistance of cable, make inner wire can not produce oxidative phenomena, improve the stability of its transmission performance, and useful life can be longer; 2, at the aluminium foil of insulating barrier outer surface bonding self-adhesion structure, when the extrusion molding oversheath, the outer conductor self-adhesion structure that makes aluminium foil of being heated plays a role, to be subjected to thermal softening and insulating barrier tight bond be one to the glue that melts of self-adhesion structure, thereby make cable can not make the infiltration that produces relative gap between insulating barrier and the outer conductor and cause moisture or water behind the finished product; 3, between outer conductor and oversheath, be laminated with the ointment packed layer, ointment packed layer uniform density spreads upon between outer conductor and the oversheath, can not make the generation relative displacement of outer conductor and oversheath and form the gap that can enter moisture or water, equally also improved the water resistance of cable, make its outer conductor not oxidated, guarantee that its transmission performance is more stable, longer service life; 4, simple, the compact conformation of production technology, low cost of manufacture, result of use are good.

(4) description of drawings

Fig. 1 is the utility model structure cross-sectional schematic;

Wherein, 1-inner wire, 2-resin bonded laminate, 3-insulating barrier, 4-aluminium foil layer, 5-braid, 6-ointment packed layer, 7-oversheath.

(5) specific embodiment

Embodiment one:

With reference to accompanying drawing 1, a kind of coaxial cable that blocks water, include inner wire 1, insulating barrier 3, outer conductor, oversheath 7, described outer conductor is made up of aluminium foil layer 4 and braid 5, described inner wire, insulating barrier, aluminium foil layer, braid, oversheath radially are provided with successively from inside to outside, are laminated with resin bonded laminate 2 between described inner wire and the insulating barrier; The aluminium foil layer of described insulating barrier and outer conductor adopts the self-adhesion structure, smears ointment packed layer 6 between described outer conductor and the oversheath.Described resin bonded laminate is bonded between inner wire and the insulating barrier.Described ointment packed layer spreads upon between outer conductor and the oversheath.

The utility model increases the ointment smear layer by increase resin bonded laminate between the inner wire of cable and insulating barrier between outer conductor and the sheath, thereby makes whole cable form an organic whole, obviously improves the bending property crush resistance and the water proofing property of cable.Implementation method is simple.Be applicable to 75 Ω polyethylene foameds insulation braided outer conductor radio frequency coaxial-cable, will help promoting popularizing and developing of cable backbone system (common antenna TV system) and special protection against the tide, the utilization of waterproof occasion.

Claims

1. coaxial cable that blocks water, include inner wire, insulating barrier, outer conductor, oversheath, described outer conductor is made up of aluminium foil layer and braid, described inner wire, insulating barrier, aluminium foil layer, braid, oversheath radially are provided with successively from inside to outside, it is characterized in that: be laminated with resin bonded laminate between described inner wire and the insulating barrier; The aluminium foil layer of described insulating barrier and outer conductor adopts the self-adhesion structure, smears the ointment packed layer between described outer conductor and the oversheath.

2. the coaxial cable that blocks water as claimed in claim 1 is characterized in that: described resin bonded laminate is bonded between inner wire and the insulating barrier.

3. the coaxial cable that blocks water as claimed in claim 2 is characterized in that: described ointment packed layer spreads upon between outer conductor and the oversheath.