CN212624841U

CN212624841U - High-speed cable and high-speed cable connector

Info

Publication number: CN212624841U
Application number: CN202021267147.4U
Authority: CN
Inventors: 李华兵; 余良
Original assignee: Shenzhen Luxshare Precision Industry Co Ltd
Current assignee: Luxshare Precision Industry Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-02-26
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a high-speed cable and high-speed cable connector, it belongs to cable technical field, high-speed cable includes the transmission line and wraps up in the outside tegument of transmission line, the transmission line includes signal line, ground wire and wraps up in the signal line with the shielding layer outside the ground wire, the tegument wraps up outside the shielding layer, signal line and the ground wire interval sets up; and the shielding layer is provided with a wave-absorbing coating layer. The high-speed cable connector comprises a high-speed cable and connectors arranged at two ends of the high-speed cable. The utility model provides a high-speed cable and high-speed cable connector make the hardness of high-speed cable can be lower, can be softer, the processing and the installation in high-speed cable later stage of being convenient for to the processing or the installation effectiveness of high-speed cable have been improved.

Description

High-speed cable and high-speed cable connector

Technical Field

The utility model relates to the technical field of cables, especially, relate to a high-speed cable and high-speed cable connector.

Background

The High Definition Multimedia Interface (HSMI) product is a digital video/audio Interface technology, and is a dedicated digital Interface suitable for video transmission, which can simultaneously transmit audio and video signals, and has a maximum data transmission speed of 2.25GB/s, and does not require digital/analog or analog/digital conversion before signal transmission.

In the process of using the HDMI product, the wire rod in the HDMI product needs to satisfy the EMI shielding effect, and in the prior art, a tinned copper material or a copper-clad steel material is usually used as a conductor for weaving or winding outside the conductor for wrapping so as to form the wire rod. Because tinned copper material or copper clad steel material's pliability is relatively poor, lead to the wire rod whole harder, and then be not convenient for processing and installation in HDMI product later stage to the processing or the installation effectiveness of HDMI product have been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-speed cable and high-speed cable connector for the hardness of high-speed cable can be lower, can be softer, the processing and the installation in the high-speed cable later stage of being convenient for.

As the conception, the utility model adopts the technical proposal that:

a high-speed cable comprises a transmission line and a tegument layer wrapped outside the transmission line, wherein the transmission line comprises a signal line, a ground line and a shielding layer wrapped outside the signal line and the ground line, the tegument layer is wrapped outside the shielding layer, and the signal line and the ground line are arranged at intervals; and the shielding layer is provided with a wave-absorbing coating layer.

Optionally, the wave-absorbing coating layer is in a grid shape.

Optionally, the transmission line includes one ground wire, and one ground wire includes four first wires, and a first conductive layer is wound around the four first wires.

Optionally, the transmission line includes five signal lines, and the five signal lines are sequentially arranged along a horizontal direction.

Optionally, a pair of signal conductor lines and a drain line are provided inside the signal line, and the signal conductor lines include a conductor and a first insulating layer.

Optionally, a second conductive layer is wrapped around a pair of the signal conductor lines and the drain line, the second conductive layer being wrapped with a second protective layer.

Optionally, a first distance between two adjacent signal lines is smaller than a second distance between any one of the signal lines and the ground line.

Optionally, the material of the outer layer is a thermoplastic elastomer material, and the outer layer is extruded at one time and wrapped around the outer side of the shielding layer.

A high-speed cable connector comprises the high-speed cable and connectors arranged at two ends of the high-speed cable.

Optionally, the connector includes a conductive terminal for connecting with the high-speed cable and a housing covering the conductive terminal, and one end of the high-speed cable extends into the housing and is connected with the conductive terminal.

The beneficial effects of the utility model include at least:

the utility model provides a high-speed cable realizes EMI shielding effect through setting up the shielding layer to, the shielding layer is softer, and then makes the hardness of high-speed cable can be lower, can be softer, and the processing and the installation in high-speed cable later stage of being convenient for have improved the processing or the installation effectiveness of high-speed cable.

Drawings

Fig. 1 is a schematic structural diagram of a high-speed cable according to an embodiment of the present invention;

fig. 2 is a front view of a high-speed cable provided by an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a high-speed cable provided by an embodiment of the present invention;

fig. 4 is an exploded schematic view of a high-speed cable according to an embodiment of the present invention.

In the figure:

1. a transmission line; 11. a signal line; 111. a signal conductor line; 1111. a conductor; 1112. a first insulating layer; 112. a drain line; 12. a ground wire; 121. a first conductive line; 1211. a wire core; 1212. a second insulating layer; 2. a tegument layer; 3. a shielding layer; 31. a wave-absorbing coating layer; 4. a first conductive layer; 5. a first protective layer; 6. a second conductive layer; 7. and a second protective layer.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a high-speed cable, and the pliability of this cable is better, the processing and the installation of the later stage of being convenient for.

As shown in fig. 1 to 4, the high-speed cable includes a transmission line 1 and a jacket layer 2 wrapped around the transmission line 1. The transmission line 1 comprises a plurality of signal lines 11, a ground line 12 and a shielding layer 3 wrapped outside the signal lines 11 and the ground line 12, an outer layer 2 is wrapped outside the shielding layer 3, and the signal lines 11 and the ground line 12 are arranged at intervals; the shielding layer 3 is in a grid shape, the wave-absorbing coating layer 31 is arranged on the shielding layer, and the EMI shielding is realized through the wave-absorbing coating layer 31, that is, the high-speed cable in the embodiment does not need to be provided with a tinned copper material or copper-clad steel structure, so that the flexibility of the high-speed cable provided by the embodiment is good. Optionally, the wave-absorbing coating layer 31 may be disposed on an outer side of the shielding layer 3, or the wave-absorbing coating layer 31 may also be disposed on an inner side of the shielding layer 3, or the wave-absorbing coating layer 31 may also be sandwiched in the shielding layer 3, which is not limited in this embodiment.

In the high-speed cable that this embodiment provided, through setting up the shielding layer 3 of parcel outside signal line 11 and ground wire 12, and be equipped with on the shielding layer 3 and be used for EMI shielding to inhale ripples coating layer 31, can be under the circumstances that realizes EMI shielding, high-speed cable is softer, and whole hardness is less, and the processing and the installation of the high-speed cable of being convenient for and other structures have improved high-speed cable processing or installation effectiveness.

It should be noted that the wave-absorbing coating layer 31 may be made of wave-absorbing material. The wave-absorbing material is a material capable of absorbing or greatly reducing electromagnetic wave energy received by the surface of the wave-absorbing material, thereby reducing interference of the electromagnetic wave. In engineering application, the wave-absorbing material is required to have high absorption rate to electromagnetic waves in a wider frequency band, and also required to have the properties of light weight, temperature resistance, moisture resistance, corrosion resistance and the like. Illustratively, the absorbing material may include carbon-based absorbing materials, iron-based absorbing materials, ceramic-based absorbing materials and other types of materials according to element classification. The carbon-based wave-absorbing material is exemplified by graphene, graphite, carbon black, carbon fiber, carbon nanotube and the like; examples of the iron-based wave absorbing material are ferrite, magnetic iron nano material and the like; examples of the ceramic-series wave-absorbing material are silicon carbide and the like; other types of materials are exemplified by conductive polymers, chiral materials (left-handed materials), and plasma materials.

Optionally, the wave-absorbing coating layer 31 may have a hollow, and the hollow may be rectangular, triangular, circular, or the like. For example, the wave-absorbing coating layer 31 may be in a grid shape, so that the EMI shielding effect can be achieved, and the material of the wave-absorbing coating layer 31 may be less, thereby reducing the cost of the high-speed cable.

As shown in fig. 1 and 2, the transmission line 1 may include one ground wire 12, and the one ground wire 12 includes four first wires 121, and the four first wires 121 are externally wound with a first conductive layer 4, and the first conductive layer 4 can wrap the four first wires 121 to fix the first wires 121. Alternatively, the first conductive layer 4 may be aluminum foil (AL-foil), a mixture of Mylar and Hot-melt polyester film (Mylar + Hot-Mylar), or the like.

Further, as shown in fig. 3, the first conductive layer 4 is wrapped with a first protective layer 5, and the first protective layer 5 is used for protecting the ground wire 12 from moisture. The first protection layer 5 may be an insulating layer, and the material of the first protection layer 5 may be hot-melt mylar.

Optionally, as shown in fig. 4, the first wires 121 include a wire core 1211 and a second insulating layer 1212 wrapped around the wire core 1211, where the second insulating layer 1212 is made of an insulating material, so that the four first wires 121 are insulated from each other.

Referring to fig. 1, the transmission line 1 may include five signal lines 11, the five signal lines 11 are sequentially arranged along a horizontal direction, and the ground line 12 is located at one side of the five signal lines 11 and is sequentially arranged along the horizontal direction with the five signal lines 11. Illustratively, the horizontal direction may be a width direction of the high-speed cable. The five signal lines 11 are arranged at equal intervals, and the interval between two adjacent signal lines 11 is smaller than the minimum distance between the ground line 12 and any one signal line 11, so that the ground line 12 can be prevented from interfering with the signal lines 11.

As shown in fig. 2, a pair of signal conductor lines 111 and a drain line 112 are provided inside the signal line 11. Wherein, two signal conductor lines 111 are arranged along the horizontal direction, and the drain line 112 is positioned below the two signal conductors 111 and simultaneously contacts with the two signal conductor lines 111. Further, as shown in fig. 3, each signal conductor line 111 includes a conductor 1111 and a first insulating layer 1112, and the first insulating layer 1112 is used for preventing the conductor 1111 from contacting the drain line 112.

With continued reference to fig. 3, the signal line 11 is wrapped with the second conductive layer 6, that is, the pair of signal conductor lines 111 and the drain line 112 are wrapped with the second conductive layer 6, and the second conductive layer 6 is wrapped with the second protective layer 7. The second conductive wire layer 6 may be aluminum foil (AL-foil), Mylar + Hot-melt polyester film (Mylar + Hot-Mylar), or the like. The second protection layer 7 may be an insulation layer, and the material of the second protection layer 7 may be hot-melt mylar.

Optionally, the material of the outer layer 2 is a thermoplastic elastomer material, and the outer layer 2 is extruded once and wrapped around the outer side of the shielding layer 3 (or the wave-absorbing coating layer 31).

The embodiment also provides a high-speed cable connector, which comprises the high-speed cable and connectors arranged at two ends of the high-speed cable.

Furthermore, the connector comprises a conductive terminal for connecting with the high-speed cable and a shell covering the conductive terminal, and one end of the high-speed cable extends into the shell and is connected with the conductive terminal.

The manufacturing method of the high-speed cable connector provided by the embodiment comprises the following steps: first, ten single-core conductors 1111 are prepared, the ten conductors 1111 are respectively wrapped with a first insulation layer 1112, then five drain wires 112 are prepared, and simultaneously four wire cores 1211 are prepared, and the four wire cores 1211 are respectively wrapped with a second insulation layer 1212. Then, dividing two signal conductor wires 111 and one drainage wire 112 into a group, winding a second conductive layer 6 outside the two signal conductor wires 111 and the drainage wire 112, and then wrapping a second protective layer 7 outside the second conductive layer 6; then, a first conductive layer 4 is wound outside the four ground wires 12, and a first protective layer 5 is further wrapped outside the first conductive layer 4. After the first protective layer 5 and the second protective layer 7 are wrapped, the five groups of signal lines 11 and the one ground line 12 are sequentially arranged at intervals along the horizontal direction, for example, the five groups of signal lines 11 and the one ground line 12 are arranged from left to right, then the shielding layer 3 is wrapped outside the five groups of signal lines 11 and the one ground line 12, it needs to be explained that the wave-absorbing coating layer 31 can be arranged on the shielding layer 3 in advance, at this time, in this step, the shielding layer 3 and the wave-absorbing coating layer 31 are directly wrapped outside the five groups of signal lines 11 and the one ground line 12, or the shielding layer 3 can be wrapped outside the five groups of signal lines 11 and the one ground line 12, then the wave-absorbing coating layer 31 is arranged outside the shielding layer 3, next, the wire rod is integrally extruded out of the outer tegument 2, and. In order to facilitate grounding of the shield layer 3, when the outer layer 2 is pressed, a part of the shield layer 3 needs to be exposed at least at one end of the high-speed cable (as shown in fig. 1).

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high-speed cable is characterized by comprising a transmission line (1) and a tegument layer (2) wrapped outside the transmission line (1), wherein the transmission line (1) comprises a signal line (11), a ground line (12) and a shielding layer (3) wrapped outside the signal line (11) and the ground line (12), the tegument layer (2) is wrapped outside the shielding layer (3), and the signal line (11) and the ground line (12) are arranged at intervals; wherein the shielding layer (3) is provided with a wave-absorbing coating layer (31).

2. High speed cable according to claim 1, wherein said wave absorbing coating layer (31) is grid-like.

3. A high-speed cable according to claim 1, characterized in that the transmission line (1) comprises one of the ground wires (12), and one of the ground wires (12) comprises four first conductors (121), the four first conductors (121) being externally wound with a first conductive layer (4).

4. A high-speed cable according to any one of claims 1-3, wherein the transmission line (1) comprises five signal lines (11), the five signal lines (11) being arranged in sequence in a horizontal direction.

5. A high-speed cable according to claim 3, wherein the signal line (11) is internally provided with a pair of signal conductor lines (111) and a current exhaust line (112), the signal conductor lines (111) including a conductor (1111) and a first insulating layer (1112).

6. A high speed cable according to claim 5, wherein a second conductive layer (6) is wrapped around a pair of the signal conductor lines (111) and the drain line (112), the second conductive layer (6) being wrapped around a second protective layer (7).

7. A high-speed cable according to claim 5, wherein a first distance between two adjacent signal lines (11) is smaller than a second distance between any one of the signal lines (11) and the ground line (12).

8. High speed cable according to any of claims 1 to 3, wherein the material of the outer layer (2) is a thermoplastic elastomer material, and the outer layer (2) is extruded once to wrap around the outside of the shielding layer (3).

9. A high-speed cable connector, comprising the high-speed cable according to any one of claims 1 to 8 and connecting heads disposed at both ends of the high-speed cable.

10. The high-speed cable connector according to claim 9, wherein the connector includes a conductive terminal for connecting with the high-speed cable and a housing covering the conductive terminal, and one end of the high-speed cable extends into the housing and is connected with the conductive terminal.