CN103928105A - Cable - Google Patents

Abstract

The invention relates to a cable which comprises a conductor, an insulator, wrapping tape and an outer covering layer. The periphery of the conductor is wrapped by the insulator, the wrapping tape is formed by foaming PP materials, a plurality of bubbles are formed inside the wrapping tape, the hardness of the wrapping tape is low, the cable is flexible, and is easily bent, when the cable is extruded, stress buffer can be provided, the conductor is protected against damage, in addition, a dielectric constant of the wrapping tape is lower, the resistance of the cable and the signal losses can be easily reduced, and the transmission quality of cable signals can be improved.

Description

Cable

Technical field

The present invention relates to a kind of cable.

Background technology

The common cable inside of existing market is wound with paper tape, and paper tape hardness is high, dielectric constant is high, causes the pliability of cable low, likely cannot test by bending, and the impedance of cable is high, the loss of signal producing during transmission is large, sometimes cannot meet client's high request.

So, be necessary above-mentioned technical problem to improve.

Summary of the invention

The object of the present invention is to provide a kind of cable that improves pliability that has.

For realizing aforementioned object, the present invention adopts following technical scheme: a kind of cable, it comprises conductor, is wrapped in the insulator of conductor periphery, band, serving, it is characterized in that: described band is by the moulding of PP material foaming, the some bubbles of inner formation.

The band of cable of the present invention is by the moulding of PP material foaming; the some bubbles of inner formation, band hardness is low, makes cable comparatively soft; easily bending; when cable is extruded, can provide stress buffer, protection conductor is not destroyed; in addition; the dielectric constant of band is lower, is conducive to reduce the impedance of cable and the loss of signal, improves the quality of cable signal transmission.

Accompanying drawing explanation

Fig. 1 is the generalized section of cable of the present invention.

Embodiment

Refer to shown in Fig. 1, cable 10 of the present invention comprises that some conductors 11, the insulator 12 that is wrapped in successively from inside to outside conductor 11 outsides, aluminium foil layer 13, band 14, aluminium foil wheat draw layer 15, braid 16 and serving 17.

Conductor 11 can be differential signal conductors, power conductor or earthing conductor, and every a pair of differential signal conductors shares same aluminium foil layer 13 parcels.

Band 14 is wrapped in aluminium foil layer 13 outsides, and band 14 is by the moulding of PP (polypropylene) material foaming, the some bubbles 141 of inner formation; band 14 hardness are low; make cable 10 comparatively soft, easily bending, when cable 10 is extruded; stress buffer can be provided; protection conductor 11 is not destroyed, and in addition, the dielectric constant of band 14 is lower; be conducive to reduce the impedance of cable 10 and the loss of signal, improve the quality of cable 10 signal transmission.

Although be example object, the preferred embodiment of the present invention is disclosed, but those of ordinary skill in the art will recognize, in the situation that not departing from by the disclosed scope and spirit of the present invention of appending claims, various improvement, increase and replacement are possible.

Claims (6)

1. a cable, it comprises conductor, is wrapped in the insulator of conductor periphery, band, serving, it is characterized in that: described band is by the moulding of PP material foaming, innerly forms some bubbles.

2. cable according to claim 1, is characterized in that: described band is wrapped in the outside of insulator.

3. cable according to claim 1, is characterized in that: described cable is provided with the aluminium foil wheat of parcel band and draws layer.

4. cable according to claim 3, is characterized in that: described cable is provided with the braid that parcel aluminium foil wheat is drawn layer.

5. cable according to claim 1, is characterized in that: described cable is provided with the aluminium foil layer of direct wrap insulate body, and described band is wrapped on aluminium foil layer.

6. cable according to claim 1, is characterized in that: described conductor is differential signal conductors, power conductor or earthing conductor.