CN218676520U

CN218676520U - Data transmission device

Info

Publication number: CN218676520U
Application number: CN202222635866.2U
Authority: CN
Inventors: 成海华
Original assignee: Shenzhen Weitong Electronics Co ltd
Current assignee: Shenzhen Weitong Electronics Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-21
Anticipated expiration: 2032-09-30

Abstract

The utility model provides a data transmission device, including cable (100) and be connected to the connector of cable (100) tip, cable (100) include: 8 first cores (80) for transmitting data of USB protocol of USB3.0 or higher version; 2 second cores (40) for transmitting data of USB 2.0; the cable comprises a third wire core (30) and a fourth wire core (50) which are used for transmitting control signals, wherein the number of the third wire core (30) and the number of the fourth wire core (50) are 4 in total, the third wire core (30) is provided with a shielding layer, and the fourth wire core (50) is not provided with the shielding layer; a cable insulation layer (15), wherein the 8 first wire cores (80), the 2 second wire cores (40), the third wire core (30) and the fourth wire core (50) are jointly wrapped by the cable insulation layer (15); a cable shielding layer (13) wrapping the cable insulation layer (15). The utility model discloses a rationally set up structure, the structure of cable, improved the pliability of data transmission device's cable.

Description

Data transmission device

[ technical field ] A

The utility model relates to a data transmission device is particularly useful for transmitting data between electronic product.

[ background of the invention ]

Cables with connectors are common data transmission devices. With the development and popularization of personal computers, personal smart phones, and photographing devices, users desire a data transmission device with a higher transmission speed. The same specifications of TypeC, USB4, etc. are also emerging in succession and becoming popular. For satisfying the high-speed transmission demand of data, just need carry out corresponding anti-interference processing to the inside sinle silk of cable to lead to the external diameter of cable great, the pliability not enough. Therefore, how to improve the flexibility of the cable is a problem to be solved.

[ Utility model ] content

The utility model discloses a main aim at improves data transmission device's data transmission performance.

In order to achieve the above object, the present invention provides a data transmission device, including a cable and a connector connected to an end of the cable, wherein the cable includes: 8 first wire cores, the said first wire core is used for transmitting USB3.0 or higher edition USB agreement data; 2 second cores for transmitting data of USB 2.0; the cable comprises a third wire core and a fourth wire core for transmitting control signals, wherein the number of the third wire core and the number of the fourth wire core are 4 in total, the third wire core is provided with a shielding layer, and the fourth wire core is not provided with the shielding layer; the cable insulation layer is used for wrapping the 8 first wire cores, the 2 second wire cores and the third wire cores and the fourth wire cores together; and the cable shielding layer wraps the periphery of the cable insulating layer.

In an embodiment of the invention, the cable further comprises a cable sheath at the periphery of the cable shielding layer.

In an embodiment of the present invention, the cable further includes 2 fifth cores as power supply lines, and an outer diameter of the fifth cores is not more than 0.9 mm.

In one embodiment of the present invention, the fifth wire core does not have a shielding layer.

In an embodiment of the present invention, the shielding layer of the third wire core is a copper foil, and the outer diameter of the third wire core is not more than 0.5 mm.

In an embodiment of the invention, the outer diameter of the fourth wire core does not exceed 0.45 mm.

In an embodiment of the present invention, the first core includes a first conductor, surrounds and wraps a plurality of the first insulating layer of the first conductor, surrounds and wraps the first shielding layer of the first insulating layer, wraps the second shielding layer of the first shielding layer, surrounds and wraps the second insulating layer of the second shielding layer.

In one embodiment of the present invention, one of the first shielding layer and the second shielding layer is formed by winding a conductor, and the other is a conductive foil.

In an embodiment of the present invention, an outer diameter of the first insulating layer is not more than 0.9 mm, and an outer diameter of the first wire core is not more than 1.1 mm.

In an embodiment of the present invention, the cable further includes a ground wire, and the ground wire and the 2 second cores are wrapped by a third shielding layer together to form a core combination.

The utility model discloses a rationally set up structure, the structure of cable, improved the pliability of data transmission device's cable.

[ description of the drawings ]

To further disclose the specific technical content of the present disclosure, please refer to the attached drawings, wherein:

fig. 1 is a schematic cross-sectional view of a cable used in a data transmission device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional schematic view of a first core used in the cable of FIG. 1;

FIG. 3 is a cross-sectional view of a core combination formed by a second core used in the cable of FIG. 1;

FIG. 4 is a cross-sectional schematic view of a third core of the cable shown in FIG. 1;

FIG. 5 is a cross-sectional schematic view of a fourth core of the cable of FIG. 1;

fig. 6 is a schematic cross-sectional view of a fifth core of the cable of fig. 1.

[ detailed description ] embodiments

Referring to fig. 1 of the drawings, a drawing,

as shown in fig. 1, a data transmission device according to an embodiment of the present invention includes a cable 100 and a connector (not shown) connected to an end of the cable 100. The cable 100 includes:

8 first cores 80 for transmitting data of USB3.0 or higher version of USB protocol;

2 second cores 40 for transmitting data of USB 2.0;

the number of the third wire cores 30 and the number of the fourth wire cores 50 are 4 in total, the third wire cores 30 have shielding layers, and the fourth wire cores 50 do not have shielding layers;

a cable insulating layer 15 for insulation, wherein the 8 first cores 80, the 2 second cores 40, the third cores 30 and the fourth cores 50 are collectively wrapped by the cable insulating layer 15;

and the cable shielding layer 13 wraps the periphery of the cable insulating layer 15.

In this embodiment, the cable 100 further includes a cable sheath 11 around the cable shielding layer 13. The cable 100 can satisfy the requirement of USB 4.

In the present embodiment, the outer diameter of the cable 100 is reduced by designing the kind of the core and using the fourth core 50 having no shielding layer. In the present embodiment, the number of the third cores 30 is 3, and the number of the fourth cores 50 is 1. The outer diameter of the cable 100 is not more than 5.5 mm, so that the flexibility of the cable is improved on the basis of ensuring high-speed transmission.

In this embodiment, the cable 100 further includes 2 fifth cores 20 as power supply lines (Vbus), and the outer diameter of the fifth cores 20 is not more than 0.9 mm. This structure further improves the flexibility of the cable and reduces the outer diameter of the cable.

As shown in fig. 2, the first core 80 includes a plurality of first conductors 81, a first insulating layer 83 surrounding and wrapping the plurality of first conductors 81, a first shielding layer 85 surrounding and wrapping the first insulating layer 83, a second shielding layer 87 wrapping the first shielding layer 85, and a second insulating layer 89 surrounding and wrapping the second shielding layer 87. One of the first and

second shield layers

85, 87 is formed by winding a conductor, and the other is a conductive foil. Preferably, the first shielding layer 85 is formed by winding a conductor, the second shielding layer 87 is a copper foil, and the second insulating layer 89 is a hot-melt mylar. The outer diameter of the first insulating layer 83 is not more than 0.9 mm, and the outer diameter of the first wire core 80 is not more than 1.1 mm.

As shown in fig. 3, the cable 100 further includes a ground wire 45, and the ground wire 45 and the 2 second cores 40 are wrapped by the third shielding layer 47 to form a core combination. The second wire core 40 includes a plurality of second conductors 41 and a third insulation layer 43 surrounding and wrapping the plurality of second conductors 41. In this embodiment, the outer diameter of the second wire core 40 is not more than 0.65 mm, and the third shielding layer 47 is aluminum foil.

As shown in fig. 4, the third core 30 includes a plurality of third conductors 31, a fourth insulating layer 33 surrounding and wrapping the plurality of third conductors 31, and a fourth shielding layer 35 surrounding and wrapping the fourth insulating layer 33. The third core 30 has an outer diameter of not more than 0.5 mm, and the fourth shield layer 35 is a copper foil.

As shown in fig. 5, the fourth wire core 50 has no shielding layer, and the fourth wire core 50 includes a plurality of fourth conductors 51 and a fifth insulating layer 53 surrounding and wrapping the plurality of fourth conductors 51. The outer diameter of the fourth wire core 50 is not more than 0.45 mm.

As shown in fig. 6, the fifth wire core 20 does not have a shielding layer, and the fifth wire core 20 includes a plurality of fifth conductors 21 and a sixth insulating layer 23 surrounding and wrapping the plurality of fifth conductors 21.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A data transmission device comprising a cable (100) and a connector connected to an end of the cable (100), characterized in that the cable (100) comprises:

8 first cores (80) for transmitting data of USB protocol of USB3.0 or higher version;

2 second cores (40) for transmitting data of USB 2.0;

a third wire core (30) and a fourth wire core (50) for transmitting control signals, the third wire core (30) and the fourth wire core (50) being 4 in total, the third wire core (30) having a shielding layer, the fourth wire core (50) not having a shielding layer;

a cable insulation layer (15), wherein the 8 first wire cores (80), the 2 second wire cores (40) and the third wire cores (30) and the fourth wire cores (50) are jointly wrapped by the cable insulation layer (15);

and the cable shielding layer (13) wraps the periphery of the cable insulating layer (15).

2. The data transmission device according to claim 1, characterized in that the cable (100) further comprises a cable sheath (11) at the outer circumference of the cable shield (13).

3. The data transmission device according to claim 1, characterized in that the cable (100) further comprises 2 fifth cores (20) as power supply lines, the outer diameter of the fifth cores (20) not exceeding 0.9 mm.

4. A data transmission arrangement as claimed in claim 3, characterized in that the fifth wire core (20) is free of a shielding layer.

5. The data transmission device according to claim 1, wherein the shielding layer of the third core (30) is a copper foil, and the outer diameter of the third core (30) is not more than 0.5 mm.

6. A data transmission device according to claim 1, wherein the outer diameter of the fourth wire core (50) does not exceed 0.45 mm.

7. The data transmission device according to claim 1, wherein the first core (80) comprises a first conductor (81), a first insulating layer (83) surrounding and wrapping a number of the first conductors (81), a first shielding layer (85) surrounding and wrapping the first insulating layer (83), a second shielding layer (87) wrapping the first shielding layer (85), and a second insulating layer (89) surrounding and wrapping the second shielding layer (87).

8. The data transmission device according to claim 7, wherein one of the first shield layer (85) and the second shield layer (87) is formed by winding a conductor, and the other is a conductive foil.

9. The data transmission device according to claim 7, wherein the outer diameter of the first insulating layer (83) is not more than 0.9 mm, and the outer diameter of the first core (80) is not more than 1.1 mm.

10. The data transmission device according to claim 1, wherein the cable further comprises a ground wire (45), and the ground wire (45) and the 2 second wire cores (40) are jointly wrapped by a third shielding layer (47) to form a wire core combination.