CN211125166U

CN211125166U - Cable with a flexible connection

Info

Publication number: CN211125166U
Application number: CN201921664517.5U
Authority: CN
Inventors: 蔡建国; 郑娟; 张禄侑
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-28
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a cable, it includes a pair of heart yearn, cladding simultaneously one pair of insulating layer, cladding outside the heart yearn the shielding layer and the cladding of insulating layer the outer quilt of shielding layer, the shielding layer is double-deck metal forming. This cable adopts double-deck metal forming as the shielding layer in order to increase the shielding effect of cable, and then ensures signal transmission's reliability, simultaneously the utility model discloses the wire rod has the high-speed data transmission ability that is greater than 40GHz signal frequency.

Description

Cable with a flexible connection

[ technical field ] A method for producing a semiconductor device

The present invention relates to a cable, and more particularly to a high-speed signal cable for transmitting high-frequency signals.

[ background of the invention ]

With the development and popularization of electronic technology products, signal cables are widely applied to the fields of household appliances, instruments and meters, automation equipment, data centers, servers, switches, cloud computing, 5G and the like as a signal transmission tool. However, during signal transmission, the cable is very susceptible to interference from external electromagnetic signals, and therefore, a shielding structure is often adopted to eliminate or reduce interference from external electromagnetic fields and prevent leakage of the transmission signal.

Therefore, there is a need to provide a novel shielded cable with high anti-interference performance, stable and reliable signal transmission, and simple manufacture.

[ Utility model ] content

The utility model discloses a main aim at provides a cable, and this cable shielding is effectual, and signal transmission is stable.

In order to achieve the above object, the utility model discloses can adopt following technical scheme: a cable comprises a pair of core wires, an outer insulating layer for coating the core wires, a shielding layer for coating the insulating layer and an outer cover for coating the shielding layer, wherein the shielding layer is a double-layer metal foil.

Further, the double-layer metal foil comprises at least one of a double-layer aluminum foil and a double-layer copper foil.

Further, the double-layer metal foil comprises a PET layer, and two metal layers are respectively rolled on two sides of the PET layer.

Furthermore, the core wire comprises an inner conductor and an extruded inner insulating layer for coating the inner conductor.

Further, the inner conductor comprises at least one of a copper inner conductor, a silver-plated copper inner conductor, and a tin-plated copper inner conductor.

Further, at least one ground line disposed between the shielding layer and the outer cover is included.

Further, the inner insulation layer comprises any one of PE, PP, FEP, foamed PE, foamed PP and foamed FEP.

Further, the insulating layer comprises any one of PP, PE, PTFE and E-PTFE.

Further, the insulating layer covers the core wire in a spirally wound manner.

Further, the shielding layer covers the core wire in a spiral winding manner or a longitudinal covering manner.

Compared with the prior art, the utility model discloses following beneficial effect has: the double-layer copper foil is used as a shielding layer, so that the shielding effect of the high-speed signal cable is improved, and the reliability of signal transmission is ensured. Simultaneously the utility model discloses the wire rod has the high-speed data transmission ability that is greater than 40GHz signal frequency. More choices are provided for improving the high-frequency characteristics of the cable.

[ description of the drawings ]

Fig. 1 is a cross-sectional view of a first embodiment of the cable of the present invention.

Fig. 2 is a cross-sectional view of a second embodiment of the cable of the present invention.

[ description of main reference symbols ]

Cable 100, 100 'core wire 10, 10'

Inner conductor 1,1 'inner insulating layer 2, 2'

Insulating layer 20,20 'Shield layer 30, 30'

Ground wire 40,40 'outer covering 50, 50'

[ detailed description ] embodiments

Fig. 1 shows a first embodiment of a cable 100 according to the present invention. The cable 100 includes a core wire 10, an insulating layer 20, a shielding layer 30, a ground wire 40, and an outer cover 50 in this order from the inside to the outside. The insulating layer 20 covers the core wire 10, the shielding layer 30 covers the insulating layer 20, and the outer cover 50 covers the shielding layer 30. The ground line 40 is located between the shielding layer 30 and the outer cover 50.

In the present embodiment, the core wire 10 includes two core wires 10, which are in contact with each other and extend in a longitudinal direction, each of the core wires 10 includes an inner conductor 1 and an inner insulating layer 2 covering the inner conductor 1, the inner conductor 1 is used for transmitting a high-speed signal, the inner insulating layer 2 of each of the core wires 10 is extruded to cover the inner conductor 1, the inner conductor 1 may be any one of a copper inner conductor, a silver-plated copper inner conductor, and a tin-plated copper inner conductor, the inner insulating layer includes PE (polyethylene, polypropylene, PTFE (tetrafluoroethylene-hexachloropropene copolymer), foamed PE, foamed PP, and foamed FEP, the inner insulating layers 2 of the two core wires 10 are in contact with each other, the insulating layer 20 may be any one of PP, PE, PTFE (polytetrafluoroethylene, etc., the insulating layer 20 may be wrapped around the two inner conductors 1 in a longitudinal direction, or wrapped around the two core wires 1 in a spiral wrapping manner, the insulating layer 40 may be wrapped around the PET foil, the two shielding metal layers may be formed by a PET foil layer, a shielding metal layer, a PET foil layer, a foil.

Referring to fig. 2, a second embodiment of the cable 100' of the present invention is shown. The cable 100 ' includes a core wire 10 ', an inner insulating layer 20 ' covering the core wire 10 ', a shielding layer 30 ' covering the insulating layer 20 ', an outer cover 50 ' covering the shielding layer 30 ', and a ground wire 40 '. Compared with the first embodiment, the ground wire 40 'is one wire in the present embodiment, and is disposed at a position in the middle of the upper side of the shielding layer 30', and on an extension line passing through the midpoint of the connection line of the two inner conductors 1 and perpendicular to the connection line of the two inner conductors 1. The other components and structures are the same.

The utility model discloses a double-deck metal forming has improved the shielding effect as the shielding layer. Simultaneously the utility model discloses the cable has the high-speed data transmission ability that is greater than 40GHz signal frequency. More choices are provided for improving the high-frequency characteristics of the cable. Is suitable for the high-speed cable which is developed at high speed at present.

It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, including details of structure and function, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size and arrangement of parts within the principles as expressed in the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. The utility model provides a cable, its includes a pair of heart yearn, cladding simultaneously a pair of insulating layer outside the heart yearn, cladding the shielding layer of insulating layer and cladding the outer quilt of shielding layer which characterized in that: the shielding layer is a double-layer metal foil.

2. The cable of claim 1, wherein: the double-layer metal foil comprises at least one of double-layer aluminum foil and double-layer copper foil.

3. The cable of claim 1, wherein: the double-layer metal foil comprises a PET layer, and two metal layers are respectively rolled on two sides of the PET layer.

4. The cable of claim 1, wherein: the core wire comprises an inner conductor and an inner insulating layer which coats the inner conductor in an extrusion molding mode.

5. The cable of claim 4, wherein: the inner conductor comprises any one of a copper inner conductor, a silver-plated copper inner conductor and a tin-plated copper inner conductor.

6. The cable of claim 1, wherein: further comprising at least one ground line disposed between the shield and the outer cover.

7. The cable of claim 4, wherein: the inner insulating layer comprises any one of PE, PP, FEP, foamed PE, foamed PP and foamed FEP.

8. The cable of claim 1, wherein: the insulating layer comprises any one of PP, PE, PTFE and E-PTFE.

9. The cable of claim 1, wherein: the insulating layer covers the core wire in a spiral winding manner.

10. The cable of claim 1, wherein: the shielding layer covers the core wire in a spiral winding mode or a longitudinal covering mode.