CN204117631U

CN204117631U - High frequency cable

Info

Publication number: CN204117631U
Application number: CN201420472723.7U
Authority: CN
Inventors: 韩文都
Original assignee: Kunshan Liantao Electronics Co Ltd
Current assignee: Kunshan Liantao Electronics Co Ltd
Priority date: 2014-08-21
Filing date: 2014-08-21
Publication date: 2015-01-21
Anticipated expiration: 2024-08-21

Abstract

The utility model relates to a kind of high frequency cable, it comprises some power lines, along the insulation sheath that a circumference is arranged in the some holding wires outside power line and is coated on outside holding wire, each power line and holding wire comprise the insulator of at least one conductor and parcel conductor, described insulator comprises an inner ring, some even muscle of one outer shroud and connection inner ring and outer shroud, inner ring and outer shroud have the same center of circle, described even muscle extends along the radial direction of insulator the bubble space between inner ring and outer shroud being divided into some deciles, the distribution of foamed gas in effective control insulator, reduce dielectric constant, improve the softness of high frequency cable, obtain preferably high-frequency transmission performance and mechanical performance.

Description

High frequency cable

Technical field

The utility model relates to a kind of high frequency cable.

Background technology

At present, insulator outside the conductor of cable normally adopts foamed plastic to be formed, as Chinese utility model patent announces No. 202584919 a kind of cable disclosed, insulator outside its conductor adopts pore foaming, and pore opening differs, skewness, cause dielectric constant higher, easily have influence on the transmission of cable high-frequency signal, intensity cannot ensure, produces a lot of destabilizing factors to cable performance.

So, be necessary that a kind of new cable of design is to solve the problems of the technologies described above.

Utility model content

The purpose of this utility model there are provided a kind of high frequency cable having reduction dielectric constant and improve softness.

For realizing aforementioned object, the utility model adopts following technical scheme: a kind of high frequency cable, it insulation sheath comprising some power lines, be arranged in the some holding wires outside power line along a circumference and be coated on outside holding wire, each power line and holding wire comprise the insulator of a conductor and parcel conductor, described insulator comprises an inner ring, an outer shroud and connects some even muscle of inner ring and outer shroud, inner ring and outer shroud have the same center of circle, and described even muscle extends along the radial direction of insulator the bubble space between inner ring and outer shroud being divided into some deciles.

As further improvement of the utility model, described insulator adopts PFA or FEP material foaming to make, and the gas in described bubble is air or nitrogen.

As further improvement of the utility model, the conductor of described holding wire be single or many conductor strand together.

As further improvement of the utility model, often adjacent two holding wires form a Difference signal pair, described holding wire also comprises the metal winding layer be wrapped in outside insulator and the Copper Foil wheat of wrapping up winding layer draws layer, and winding layer can realize the signal ground function of holding wire.

As further improvement of the utility model, described power line comprises winding metal winding layer on insulator and the insulated hull of parcel winding layer, and winding layer can realize power ground function.

As further improvement of the utility model, described power line is made up of the many power lines by different wire gauge, and these many power lines are jointly wrapped in same wheat and draw in layer.

As further improvement of the utility model, described high frequency cable also comprises the aluminium foil wheat be coated on successively outside holding wire and draws layer and braid, and described insulation sheath is wrapped on braid.

As further improvement of the utility model, often adjacent two holding wires form a Difference signal pair, the side of Difference signal pair is furnished with a signal ground line, each Difference signal pair and a signal ground line are wrapped up by an aluminium foil layer jointly, aluminium foil layer is enclosed with a wheat outward again and draws layer, often adjacent two holding wires and signal ground line are triangularly arranged, and described signal ground line provides the signal ground function of holding wire.

The insulator of the utility model high frequency cable comprises an inner ring, an outer shroud and connects some even muscle of inner ring and outer shroud, inner ring and outer shroud have the same center of circle, described even muscle extends along the radial direction of insulator the bubble space between inner ring and outer shroud being divided into some deciles, the distribution of foamed gas in effective control insulator, reduce dielectric constant, improve the softness of high frequency cable, obtain preferably high-frequency transmission performance and mechanical performance.

Accompanying drawing explanation

Fig. 1 is the generalized section of the utility model first execution mode high frequency cable.

Fig. 2 is the section enlarged diagram of the utility model first side of enforcement high frequency cable holding wire.

Fig. 3 is the generalized section of the utility model second execution mode high frequency cable.

Fig. 4 is the generalized section of the utility model the 3rd execution mode high frequency cable.

Fig. 5 is the generalized section of the utility model the 4th execution mode high frequency cable.

Embodiment

The some holding wires 20, successively the aluminium foil wheat be coated on outside holding wire 20 that refer to shown in Fig. 1 to Fig. 2, the utility model first execution mode high frequency cable 100 comprises a power line 10, are arranged in outside power line 10 along a circumference draw layer 30, braid 40 and insulation sheath 50.

Each power line 10, holding wire 20 all comprise a conductor 11,21, the insulator of parcel conductor 11,21 12,22, the metal winding layer 13,23 be wrapped on insulator 12,22.The metal winding layer 13 of power line 10 can realize power ground function, and power line 10 is also provided with the insulated hull 14 of parcel winding layer 13.

The conductor 21 of holding wire 20 is single or many conductors 21 twist together, often adjacent two holding wires 20 form a Difference signal pair, in order to differential signal transmission, winding layer 23 can realize the signal ground function of holding wire 20, improve the high-frequency transmission performance of holding wire 20, the Copper Foil wheat that holding wire 20 is also provided with parcel winding layer 23 draws layer 24.Certainly, Copper Foil wheat draws layer 24 layer 30 can be drawn to substitute by aluminium foil wheat.

The ethylene propylene copolymer that the insulator 22 of holding wire 20 adopts PFA (copolymer of perfluoromethylvinyl ether) or FEP(to fluoridize) material foaming makes, and cost is low.Insulator 22 is Lotus-type Structure, it comprises an inner ring 221, one outer shroud 222 and connection inner ring 221 connect muscle 223 with the some of outer shroud 222, inner ring 221 and outer shroud 222 have the same center of circle, even muscle 223 extends along the radial direction of insulator 22, and the space between inner ring 221 and outer shroud 222 is divided into the bubble 224 of some deciles, as 6 deciles, 8 deciles, 10 deciles or more decile, be air or nitrogen in bubble 224, each bubble 224 is evenly arranged between inner ring 221 and outer shroud 222, the distribution of foamed gas in effective control insulator 22, reduce dielectric constant, improve the softness of holding wire 20, obtain preferably high-frequency transmission performance and mechanical performance.

Refer to shown in Fig. 3, the utility model second execution mode high frequency cable 200 is with the main distinction of above-mentioned first execution mode high frequency cable 100, holding wire 10 utilizes signal ground line 60 substituted metal winding layer 23, a signal ground line 60 is arranged for the side of a Difference signal pair that often adjacent two holding wires 10 form, each Difference signal pair and a signal ground line 60 are wrapped up by an aluminium foil layer 61, be enclosed with wheat again outside aluminium foil layer 61 and draw layer 62, often adjacent two holding wires 10 are triangularly arranged with signal ground line 60, signal ground line 60 provides the signal ground of holding wire 10, be conducive to the high-frequency transmission performance improving holding wire 10.Signal ground line 60 comprises the insulator of conductor and parcel conductor equally.

Refer to shown in Fig. 4, the main distinction of the utility model the 3rd execution mode high frequency cable 300 and the first execution mode high frequency cable 100 is, this high frequency cable 300 arranges many power line 10A of different wire gauge, and power line 10A does not have metal winding layer.These many power line 10A are jointly wrapped in same wheat and draw in layer 10B.

Refer to shown in Fig. 5, the main distinction of the utility model the 4th execution mode high frequency cable 400 and the second execution mode high frequency cable 200 is, this high frequency cable 400 arranges many power line 10C of different wire gauge, and power line 10C does not have metal winding layer.

Although be example object, disclose preferred implementation of the present utility model, but those of ordinary skill in the art will recognize, when not departing from scope and spirit of the present utility model disclosed in appending claims, various improvement, increase and replacement are possible.

Claims

1. a high frequency cable, it insulation sheath comprising some power lines, be arranged in the some holding wires outside power line along a circumference and be coated on outside holding wire, each power line and holding wire comprise the insulator of a conductor and parcel conductor, it is characterized in that: described insulator comprises an inner ring, an outer shroud and connects some even muscle of inner ring and outer shroud, inner ring and outer shroud have the same center of circle, and described even muscle extends along the radial direction of insulator the bubble space between inner ring and outer shroud being divided into some deciles.

2. high frequency cable according to claim 1, is characterized in that: described insulator adopts PFA or FEP material foaming to make, and the gas in described bubble is air or nitrogen.

3. high frequency cable according to claim 1, is characterized in that: the conductor of described holding wire be single or many conductor strand together.

4. high frequency cable according to claim 1, it is characterized in that: often adjacent two holding wires form a Difference signal pair, described holding wire also comprises the metal winding layer be wrapped in outside insulator and the Copper Foil wheat of wrapping up winding layer draws layer, and winding layer can realize the signal ground function of holding wire.

5. high frequency cable according to claim 1, is characterized in that: described power line comprises winding metal winding layer on insulator and the insulated hull of parcel winding layer, and winding layer can realize power ground function.

6. high frequency cable according to claim 1, is characterized in that: described power line is made up of the many power lines by different wire gauge, and these many power lines are jointly wrapped in same wheat and draw in layer.

7. high frequency cable according to claim 1, is characterized in that: described high frequency cable also comprises the aluminium foil wheat be coated on successively outside holding wire and draws layer and braid, and described insulation sheath is wrapped on braid.

8. high frequency cable according to claim 1, it is characterized in that: often adjacent two holding wires form a Difference signal pair, the side of Difference signal pair is furnished with a signal ground line, each Difference signal pair and a signal ground line are wrapped up by an aluminium foil layer jointly, aluminium foil layer is enclosed with a wheat outward again and draws layer, often adjacent two holding wires and signal ground line are triangularly arranged, and described signal ground line provides the signal ground function of holding wire.