CN207587405U

CN207587405U - A kind of USB transmission cable

Info

Publication number: CN207587405U
Application number: CN201721678567.XU
Authority: CN
Inventors: 倪艳荣; 郑先锋; 张静
Original assignee: Henan Institute of Technology
Current assignee: Henan Institute of Technology
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2018-07-06
Anticipated expiration: 2027-12-05

Abstract

The utility model proposes a kind of structure is simple, processing and manufacturing easily, the USB transmission cable that finished product outer diameter is small, flexibility is high, USB3.0 interfaces can be met, ultrahigh speed transmission requirement needed for USB3.1 interfaces.The USB transmission cable includes cable core (1) and is wrapped in the outer wheat drawing aluminium foil layer (2) of cable core cable core (1) successively, braiding layer (3) and serving (4), the cable core (1) include two shielded pair twisted wires (11), a unmasked twisted pair wire (12), two power cords (13) and gasket for packing (14)；Transmitting single line (111), power cord (13) and insulated single wire (121) has identical structure, include core wire and wrap up the insulating layer of core wire, the core wire is twisted by the more consistent copper wire of thickness, and every copper wire outer surface has the tin coating that thickness is 35 μm；Shielded layer (113) and wheat draw aluminium foil layer (2) to include the aluminium foil that two layers of thickness is not less than 0.025mm, and Duplication >=25% between two layers of aluminium foil.

Description

A kind of USB transmission cable

Technical field

The utility model is related to cable technology, more particularly, to a kind of USB transmission cable.

Background technology

3.1 transmission cables of USB can reach the maximum speed of 10Gbps under the frequency of 10GHz, become really super The USB transmission cable of high speed.However, the producer of many manufacture 3.1 cables of USB is still to continue to use USB2.0 transmission cables at present Manufacturing process, although the USB cable of ultrahigh speed transmission can be produced, its outer diameter is thicker, the more previous USB of flexibility Cable is poor, especially its in high frequency high capacity transmission, signal quality is very undesirable, seriously affected ultrahigh speed transmission USB The quick of cable is widely popularized.

Utility model content

The defects of to overcome the prior art, the utility model proposes a kind of structure is simple, processing and manufacturing is easy, finished product outer diameter The USB transmission cable small, flexibility is high can meet USB3.0 interfaces, ultrahigh speed transmission requirement needed for USB3.1 interfaces.

The utility model adopts the following technical solution realizes：A kind of USB transmission cable is wrapped up including cable core (1) and successively Aluminium foil layer (2), braiding layer (3) and serving (4) are drawn in the wheat of cable core cable core (1) outside, the cable core (1) includes two screens Cover line twisted pair wire (11), a unmasked twisted pair wire (12), two power cords (13) and gasket for packing (14)；Every shielding pair twist Line (11) by two including two transmission single lines (111) and a ground wire (112) and for transmitting single lines (111) and a ground Line (112) is wrapped in interior shielded layer (113)；The unmasked twisted pair wire (12) includes two insulated single wires (121) and packet Wrap up in the cladding glue-line (122) of two insulated single wires (121)；Transmit single line (111), power cord (13) and insulated single wire (121) tool There are identical structure, the insulating layer including core wire and package core wire, which is twisted by the more consistent copper wire of thickness, often Root copper wire outer surface has the tin coating that thickness is 3-5 μm；Shielded layer (113) and wheat draw aluminium foil layer (2) to include two layers of thickness Aluminium foil not less than 0.025mm, and Duplication >=25% between two layers of aluminium foil.

Wherein, transmission single line (111) core wire use S twist to and twisting pitch for 22.44 ± 2.5mm.

Wherein, the outer diameter of the insulating layer (1112) of transmission single line (111) is 0.95 ± 0.01mm, thickness 0.15- 0.20mm。

Wherein, transmission single line (111) and insulating layer (1112) including froth bed and positioned at the solid of froth bed lateral surface Cortex, the thickness of froth bed is 0.15-0.24mm, and solid skin thickness is 0.03mm-0.05mm.

Wherein, the core wire of insulated single wire (121) use S twist to and twisting pitch for 15.14 ± 2.5mm.

Wherein, the insulating layer of insulated single wire (121) adopts that thickness is 0.15-0.17mm, outer diameter is 0.72 ± 0.01mm.

Wherein, the insulating layer of power cord (13) is made of SR-PVC materials, and the thickness of the insulating layer of power cord (13) is 0.17mm, outer diameter 0.72mm.

Wherein, serving (4) material is made of PVC material.

Wherein, the thickness 0.56mm of serving (4), a diameter of 5.0mm ± 0.2mm.

Compared with prior art, the utility model has the advantages that：

1. the good gasket for packing (14) of setting flexibility in cable core (1), maintaining USB transmission cable has preferably softness Property；Meanwhile the insulating layer for transmitting single line (111), power cord (13) and insulated single wire (121) sets rational thickness with maximum The attenuation of signal wire pair is reduced to limit, transmission single line (111), power cord (13) and insulated single wire (121) are arranged using " 1+6 " The twisted copper wires of array structure；And in view of the influence of electric current kelvin effect under high frequency, copper wire outer surface has tin coating

2. shielded layer (113) and wheat draw aluminium foil layer (2) to employ the wrapped of the primary wrapped completion of two layers of aluminium foil and the two Duplication >=25% reduces the transverse conversion transfer loss in cable and the internal delay difference of line, fully ensures that USB transmission line height The qualification rate of frequency performance.

3. the utility model is simple in structure, processing and manufacturing is easy, also has many advantages, such as that finished product outer diameter is small, flexibility is high, can To meet USB3.0 interfaces, ultrahigh speed transmission requirement needed for USB3.1 interfaces.

Description of the drawings

Fig. 1 is that the utility model proposes the structure diagrams of USB transmission cable.

Fig. 2 is the structure diagram of wherein one shielding twisted pair wire in Fig. 1.

Specific embodiment

The utility model is described further with reference to the accompanying drawings and examples.

With reference to shown in Fig. 1 and Fig. 2, the utility model proposes a kind of USB transmission cables that can meet ultrahigh speed transmission. The USB transmission cable includes cable core (1), is wrapped in wheat drawing aluminium foil layer (2), braiding layer (3) and the outer quilt of cable core (1) outside successively Layer (4), the cable core (1) include two shielded pair twisted wires (11), a unmasked twisted pair wire (12), two power cords (13) And gasket for packing (14).That is, wheat described in cable core (1) outer wrapping draws aluminium foil layer (2), the wheat is drawn described in aluminium foil layer outer wrapping Braiding layer (3), serving (4) described in institute's braiding layer outer wrapping.

Every shielding twisted pair wire (11) is including two transmission single lines (111) and a ground wire (112) and for by two Transmission single line (111) and a ground wire (112) be wrapped in shielded layer (113), the shielded layer (113) using two layers of thickness not Wrapped less than the aluminium foil of 0.025mm to form, wherein one layer of aluminium foil is wrapped using Z-direction and aluminium is inward-facing, and another layer of aluminium foil uses S It is inward-facing to wrapped and aluminium, wrapped Duplication >=25% of the primary wrapped completion of two layers of aluminium foil and the two.The unmasked pair twist Line (12) includes the cladding glue-line (122) of two insulated single wires (121) of two insulated single wires (121) and package.

Transmitting single line (111), power cord (13) and insulated single wire (121) has identical structure, including core wire and package The insulating layer of core wire, but it is specifically different to transmit single line (111), power cord (13) and the respective core wire of insulated single wire (121) three Twisted feature and insulating layer material therefor different from.It is illustrated for transmitting single line (111).The transmission single line (111) insulating layer (1112) including core wire (1111) and package core wire (1111), the core wire (1111) using " 1+6 " including being arranged (i.e. core wire (1111) is twisted the twisted copper wires of array structure by 7 copper wire, wherein the evenly distributed setting 6 of a copper wire surrounding Root tinned wird), the thickness of every copper wire is consistent and every copper wire outer surface has the tin coating that thickness is 3-5 μm.

Wherein, in transmission single line (111) core wire use S twist to and twisting pitch for 22.44 ± 2.5mm, insulating layer (1112) outer diameter is 0.95 ± 0.01mm, thickness 0.15-0.20mm, and insulating layer (1112) including froth bed and is located at The solid cortex of froth bed lateral surface, the HDFM-PE3485 model expanded material systems that froth bed is produced by Dow Chemical Into the thickness of froth bed is 0.15-0.24mm, and solid cortex uses the 3364 model materials of HDPE of Dow Chemical's production It is made, solid skin thickness is 0.03mm-0.05mm.

Wherein, the core wire of insulated single wire (121) use S twist to and twisting pitch for 15.14 ± 2.5mm；Insulated single wire (121) insulating layer is made of the 3364 model materials of HDPE of Dow Chemical's production, insulation thickness 0.15- 0.17mm, outer insulation diameter are 0.72 ± 0.01mm.

Wherein, the insulating layer of power cord (13) is made of SR-PVC (semi-rigid polyvinyl chloride) material, power cord (13) Insulating layer thickness be 0.17mm, outer diameter 0.72mm.

Wherein, ground wire (112) has identical material and identical structure with the core wire (1111) of transmission single line (111), also adopts With the twisted copper wires of " 1+6 " arrangement architecture, and every copper wire thickness is consistent and to have thickness be 3-5 μm for every copper wire outer surface Tin coating.

Wherein, wheat draws aluminium foil layer (2) to be formed using laminated aluminium foil is wrapped, and the width of aluminium foil is 19mm, and thickness is 0.025mm, aluminium face out, and Duplication >=25% between adjacent two layers aluminium foil.

Wherein, serving (4) material is made of PVC material, thickness 0.56mm, the diameter of the serving (4) For 5.0mm ± 0.2mm.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims

1. a kind of USB transmission cable, it is wrapped in including cable core (1) and successively the wheat of cable core cable core (1) outside and draws aluminium foil layer (2), compiles Tissue layer (3) and serving (4), it is characterised in that：

The cable core (1) including two shielded pair twisted wires (11), a unmasked twisted pair wire (12), two power cords (13) with And gasket for packing (14)；

Every shielding twisted pair wire (11) is including two transmission single lines (111) and a ground wire (112) and for two to be transmitted Single line (111) and a ground wire (112) are wrapped in interior shielded layer (113)；

The unmasked twisted pair wire (12) includes the cladding glue of two insulated single wires (121) of two insulated single wires (121) and package Layer (122)；

Transmitting single line (111), power cord (13) and insulated single wire (121) has identical structure, including core wire and package core wire Insulating layer, which is twisted by the more consistent copper wire of thickness, and every copper wire outer surface has the plating that thickness is 3-5 μm Tin layers；

Shielded layer (113) and wheat draw aluminium foil layer (2) to include the aluminium foil that two layers of thickness is not less than 0.025mm, and two layers aluminium foil it Between Duplication >=25%.

2. USB transmission cable according to claim 1, it is characterised in that：Transmission single line (111) core wire using S twist to and Twisting pitch is 22.44 ± 2.5mm.

3. USB transmission cable according to claim 1, it is characterised in that：Transmit the outer of the insulating layer (1112) of single line (111) Diameter is 0.95 ± 0.01mm, thickness 0.15-0.20mm.

4. USB transmission cable according to claim 1, it is characterised in that：Transmit single line (111) and insulating layer (1112) wrap Froth bed and the solid cortex positioned at froth bed lateral surface are included, the thickness of froth bed is 0.15-0.24mm, and solid skin thickness is 0.03mm-0.05mm。

5. USB transmission cable according to claim 1, it is characterised in that：The core wire of insulated single wire (121) using S twist to and Twisting pitch is 15.14 ± 2.5mm.

6. USB transmission cable according to claim 1, it is characterised in that：The insulating layer of insulated single wire (121) adopts thickness and is 0.15-0.17mm, outer diameter are 0.72 ± 0.01mm.

7. USB transmission cable according to claim 1, it is characterised in that：The insulating layer of power cord (13) uses SR-PVC materials Material is made, and the thickness of the insulating layer of power cord (13) is 0.17mm, outer diameter 0.72mm.

8. USB transmission cable according to claim 1, it is characterised in that：Serving (4) material is made of PVC material.

9. USB transmission cable according to claim 1, it is characterised in that：It is the thickness 0.56mm of serving (4), a diameter of 5.0mm±0.2mm。