CN201804597U

CN201804597U - Superfine coaxial cable

Info

Publication number: CN201804597U
Application number: CN2010202973703U
Authority: CN
Inventors: 汤晓楠; 吴永绍
Original assignee: Shenyu Communication Technology Co Ltd
Current assignee: Shenyu Communication Technology Co Ltd
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-04-20
Anticipated expiration: 2020-08-19

Abstract

The utility model relates to a superfine coaxial cable which is mainly applied to the internal connection wires of digital products such as notebook computers, smart phones, PDAs (personal digital assistant), digital cameras and DVs (digital video) and the internal connection wires of medical equipment. The cable is formed by tightly combining an internal conductor core wire (1), an insulating layer (2), a first shielding layer (3), a second shielding layer (4) and an outer sheath (5) from inside to outside; the internal conductor core wire (1) is formed by twisting at least 7 tinned alloy wires with the diameter of 0.03 mm; the insulating layer (2) is PFA (poly-perfluoroalkoxy) ester plastic; the first shielding layer (3) is formed by winding more than 20 tinned alloy wires with the diameter of 0.03 mm; the second shielding layer (4) is a single-sided copper-clad tape; and the outer sheath (5) is a PET (polyester) wrapped tape or a PFA extrusion moulding sheath. The superfine coaxial cable of the utility model has high flexibility, can resist bending for multiple times and has the advantages of low transmission attenuation, high shielding and anti-jamming performance and relatively small size.

Description

Superfine coaxial cable

(1) technical field

The utility model relates to a kind of coaxial cable.The main use at the inside connection line of the inside of digital products such as notebook computer, smart mobile phone, PDA palmtop PC, digital camera, digital DV connection with line and some Medical Devices.

(2) background technology

Before the utility model was made, at present the inside of digital products such as notebook computer, smart mobile phone, PDA palmtop PC, digital camera, digital DV connected with line etc. and all adopts flexible circuit board.Though the process industry of flexible circuit board has had tangible lifting now, but along with present digital product is more and more higher to the requirement of aspects such as exploring high definition, high speed data transfer, low interference, small-sized, anti-bending strength, it more and more can not adapt to the demand in market.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of flexibility good, bend resistance repeatedly, and transmission attenuation is little, shielding and anti-interference is good, size is less superfine coaxial cable.

The purpose of this utility model is achieved in that a kind of superfine coaxial cable, from the inside to the outside successively by inner wire heart yearn, insulating barrier, first screen, secondary shielding layer and oversheath totally five layers closely be composited; Described inner wire heart yearn adopts the zinc-plated alloy skein silk of at least 7 φ 0.03mm to close and forms; Insulating barrier adopts poly-perfluoro alkoxy ester plastics; First screen adopts the zinc-plated alloy silk of 20 above φ 0.03mm to be entwined; The secondary shielding layer adopts single face copper-clad band; Oversheath adopts the PET twining package tape, or uses PFA extrusion molding sheath.

The beneficial effects of the utility model are:

7 or more zinc-plated alloy skein silks of the utility model inner wire heart yearn close and form, first screen adopt many zinc-plated alloy silks twine zinc-plated alloy silk close around with the wrapped mode of PET, improved the flexibility of cable greatly, bend resistance repeatedly, transmission attenuation is little, shielding and anti-interference is good, size is less.

(4) description of drawings

Fig. 1 is the Facad structure schematic diagram of the superfine coaxial cable of the utility model.

Fig. 2 is the sectional drawing of the superfine coaxial cable of the utility model.

Reference numeral among the figure:

Inner wire heart yearn 1, insulating barrier 2, first screen 3, secondary shielding layer 4, oversheath 5.

(5) embodiment

Referring to Fig. 1 and Fig. 2, Fig. 1 is the Facad structure schematic diagram of the superfine coaxial cable of the utility model.Fig. 2 is the sectional drawing of the superfine coaxial cable of the utility model.By Fig. 1 and Fig. 2 as can be seen, the superfine coaxial cable of the utility model, its structure from the inside to the outside successively by inner wire heart yearn 1, insulating barrier 2, first screen 3, secondary shielding layer 4 and oversheath 5 totally five layers closely be composited.

Described inner wire heart yearn 1 adopts the zinc-plated alloy skein silk of at least 7 φ 0.03mm to close and forms.

Described insulating barrier 2 adopts the high molten PFA of finger (poly-perfluoro alkoxy ester plastics).

Described first screen 3 adopts the zinc-plated alloy silk of 20 above φ 0.03mm to be entwined, and can reduce transmission attenuation and loss.

Described secondary shielding layer 4 adopts single face copper-clad band (one side is that PET simultaneously is a copper).Single face copper-clad tape thickness is generally 0.004mm, and the thickness of copper face is generally 0.001mm.

Described oversheath 5 adopts the PET twining package tape, or uses PFA extrusion molding sheath.

Performance compares:

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Claims

1. superfine coaxial cable, it is characterized in that described cable from the inside to the outside successively by inner wire heart yearn (1), insulating barrier (2), first screen (3), secondary shielding layer (4) and oversheath (5) totally five layers closely be composited; Described inner wire heart yearn (1) adopts the zinc-plated alloy skein silk of at least 7 φ 0.03mm to close and forms; Insulating barrier (2) adopts poly-perfluoro alkoxy ester plastics; First screen (3) adopts the zinc-plated alloy silk of 20 above φ 0.03mm to be entwined; Secondary shielding layer (4) adopts single face copper-clad band; Oversheath (5) adopts the PET twining package tape, or uses PFA extrusion molding sheath.

2. a kind of superfine coaxial cable according to claim 1 is characterized in that described single face copper-clad band simultaneously is that PET simultaneously is a copper.

3. a kind of superfine coaxial cable according to claim 2 is characterized in that described single face copper-clad tape thickness is 0.004mm, and wherein the thickness of copper face is 0.001mm.