CN210245912U

CN210245912U - HDMI data line

Info

Publication number: CN210245912U
Application number: CN201921540490.9U
Authority: CN
Inventors: qinyuan Chen; 陈钦元
Original assignee: Shenzhen Baishiyue Electronic Co ltd
Current assignee: Shenzhen Baishiyue Electronic Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-04-03
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses an HDMI data line, which comprises a wire rod, a first connector and a second connector, wherein the first connector and the second connector are arranged at two ends of the wire rod; four ground wires and ten signal cables are arranged in the tubular cavity formed by the first shielding layer, two ends of the four ground wires and the two ends of the ten signal cables are respectively connected to the first connector and the second connector, the four ground wires are uniformly distributed by taking the axial lead of the tubular cavity as the center, and the ten signal cables are uniformly distributed on the outer sides of the four ground wires by taking the axial lead of the tubular cavity as the center; each signal cable comprises a pair of signal wires, the signal wires are covered by a second shielding layer, and a second insulating layer is arranged on the outer surface of the second shielding layer. The double-combined shielding of the signal cable with the shielding layer and the first shielding layer is adopted, so that the influence of mutual interference can be reduced, and the signal transmission effect is improved.

Description

HDMI data line

Technical Field

The utility model belongs to the technical field of the data line technique and specifically relates to a HDMI data line.

Background

The high definition multimedia connection line (abbreviated as HDMI line) is mainly used for transmitting high definition digital signals between a DVD, a PS3, a high definition digital television set-top box and a high definition digital television, or a display device. The HDMI cable can transmit audio and video signals simultaneously. The HDMI line has a large transmission flow, and all information is transmitted in the form of digital signals. This allows the signal to be transmitted without distortion. The HDMI cable can integrate audio and video signal transmission, has small volume, light weight and beautiful appearance, and can gradually replace the existing audio and video signals and VGA wires to be widely applied. The signal wire of the existing HDMI wire is uniformly shielded by a shielding layer of the HDMI wire to realize signal interference and is uniformly grounded, so that mutual shielding between the signal wire and the signal wire cannot be realized to reduce interference.

Therefore, the above technical problem needs to be solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a HDMI data line, the purpose is the technical problem who solves the shielding ability not enough of current HDMI data line.

In order to solve the technical problem, the utility model provides a basic technical scheme does:

an HDMI data line comprises a wire, a first connector and a second connector, wherein the first connector and the second connector are arranged at two ends of the wire;

four ground wires and ten signal cables are arranged in the tubular cavity formed by the first shielding layer, two ends of the four ground wires and the two ends of the ten signal cables are respectively connected to the first connector and the second connector, the four ground wires are uniformly distributed by taking the axial lead of the tubular cavity as the center, and the ten signal cables are uniformly distributed on the outer sides of the four ground wires by taking the axial lead of the tubular cavity as the center;

each signal cable comprises a pair of signal wires, the signal wires are coated by a second shielding layer, and a second insulating layer is arranged on the outer surface of the second shielding layer.

Further, the adjacent ground lines abut against each other in the circumferential direction.

Further, adjacent signal cables abut against each other in the circumferential direction.

Furthermore, an inclined braid wrapping layer is arranged between the first shielding layer and the first insulating layer.

Further, the first connector comprises a first PCB having a first ground pad, a second ground pad and a first signal connection pad, and the first signal connection pad is located in front of the second ground pad;

the first terminals of the four ground wires are welded with the first ground wire bonding pad, the first ends of the second shielding layers of the ten signal cables are sequentially welded on the second ground wire bonding pad, and the signal wires of the ten signal cables cross the second ground wire bonding pad and then are sequentially welded with the first signal bonding pad.

Further, the first ground pad and the second ground pad are arranged side by side.

Further, the second connector comprises a second PCB, the second PCB is provided with a third ground pad, a fourth ground pad and a second signal connection pad, and the second signal connection pad is located in front of the fourth ground pad;

the second terminals of the four ground wires are welded with the third ground wire bonding pad, the second ends of the second shielding layers of the ten signal cables are sequentially welded on the fourth ground wire bonding pad, and the signal wires of the ten signal cables cross the fourth ground wire bonding pad and then are sequentially welded with the second signal bonding pad.

The utility model has the advantages that:

the utility model discloses a technical scheme HDMI data line, including the wire rod and setting up first connector and the second connector at this wire rod both ends, wherein, the wire rod has first shielding layer and the first insulating layer of cladding in this first shielding layer outside; four ground wires and ten signal cables are arranged in the tubular cavity formed by the first shielding layer, two ends of the four ground wires and the two ends of the ten signal cables are respectively connected to the first connector and the second connector, the four ground wires are uniformly distributed by taking the axial lead of the tubular cavity as the center, and the ten signal cables are uniformly distributed on the outer sides of the four ground wires by taking the axial lead of the tubular cavity as the center; each signal cable comprises a pair of signal wires, the signal wires are covered by a second shielding layer, and a second insulating layer is arranged on the outer surface of the second shielding layer. In this embodiment, the signal cable with the shielding layer and the dual-combined shielding of the first shielding layer are adopted, so that the influence of mutual interference can be reduced, and the signal transmission effect is improved.

Drawings

Fig. 1 is a schematic external view of an HDMI data line according to the present invention;

FIG. 2 is a cross-sectional view of a wire;

FIG. 3 is a schematic structural view of a first connector lug;

fig. 4 is a schematic structural view of a second connector lug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 4, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

Referring to fig. 1 to 2, an HDMI data line of the present embodiment includes a wire 1, and a first connector 2 and a second connector 3 disposed at two ends of the wire 1, where the first connector 2 and the second connector 3 may be a combination of different types of connectors.

In detail, the wire rod 1 includes a first shield layer 11 and a first insulating layer 12 covering an outer side of the first shield layer 11. Four ground wires 13 and ten signal cables 14 are arranged in a tubular cavity formed by the first shielding layer 11, two ends of the four ground wires 13 and the two ends of the ten signal cables 14 are respectively connected to the first connector 2 and the second connector 3, the four ground wires 13 are uniformly distributed by taking the axial lead of the tubular cavity as the center, and the ten signal cables 14 are uniformly distributed outside the four ground wires 13 by taking the axial lead of the tubular cavity as the center. That is, in the present embodiment, the four ground lines 13 and the ten signal cables 14 are shielded by the first shielding layer 11 to realize the first re-shielding protection. The four ground wires 13 are arranged inside the tubular cavity, and the ten signal cables 14 are uniformly distributed on the peripheral sides of the four ground wires 13. The space between the four ground wires 13 and the ten signal cables 14 in the tubular cavity is filled with plastic to ensure the fixed position of the middle of each wire.

Specifically, each signal cable 14 includes a pair of signal lines 141, the pair of signal lines 141 is covered by a second shielding layer 142, and a second insulating layer 143 is disposed on an outer surface of the second shielding layer 142. By the present technology, the signal of the signal line 141 can be shielded by the second shielding layer 142 being grounded, and influence between different signal cables 14 is prevented, so that second signal shielding is achieved.

In the embodiment, double shielding is realized through the first and second signal shielding, and the HDMI cable can achieve a good signal transmission effect.

Specifically, in this embodiment, the first shielding layer 11 and the second shielding layer 143 are aluminum foils.

In detail, the adjacent ground lines 13 abut each other in the circumferential direction. The adjacent signal cables 14 are abutted against each other in the circumferential direction. That is, the ground wires 13 are arranged next to each other, and the ten signal cables 14 are also arranged next to each other in the circumferential direction, which is advantageous for realizing coaxial arrangement.

In addition, in the present embodiment, the oblique braid 15 is disposed between the first shielding layer 11 and the first insulating layer 12. This can improve the strength of the HDMI data line.

In detail, since the signal cable 14 in this embodiment adopts an independent shielding design, the welding structure proposed in this embodiment is different from the conventional welding because the wire is too much and is prone to disorder in the conventional one-row welding method. Specifically, referring to fig. 3, the first connector 2 includes a first PCB 21, the first PCB 21 having a first ground pad 211, a second ground pad 212 and a first signal connection pad 213, the first signal connection pad 213 being located in front of the second ground pad 212; first terminals of the four ground lines 13 are soldered to the first ground pad 211, first ends of the second shielding layers 142 of the ten signal cables 14 are soldered to the second ground pad 212 in sequence, and the signal lines 141 of the ten signal cables 14 cross over the second ground pad 212 and then are soldered to the first signal connection pad 213 in sequence. Specifically, at the time of soldering, the second insulating layer 143 is removed so that the second shielding layer 142 is exposed, and the second shielding layer 142 is soldered to the second ground pad 212, wherein the signal line 141 is isolated from the second ground pad 212 by being not peeled off and extends forward to the first signal wire pad 213, and the signal line 141 is peeled off and exposed at the first signal wire pad 213 and then soldered to the first signal wire pad 213. Adopt this technique to be fit for the utility model discloses a connection of wire rod appears disorderly phenomenon when preventing to weld.

Preferably, in the present embodiment, the first ground pad 211 and the second ground pad 212 are arranged side by side. This ensures welding convenience, so that four ground wires 13 and ten signal cables 14 can be welded and fixed side by side.

And similarly, the welding structure of the second connector 3 is the same as that of the first connector 2. Referring specifically to fig. 4, the second connector 3 includes a second PCB 31, the second PCB 31 has a third ground pad 311, a fourth ground pad 312 and a second signal connection pad 313, and the second signal connection pad 313 is located in front of the fourth ground pad 312; the second terminals of the four ground lines 13 are soldered to the third ground pad 311, the second ends of the second shielding layers 142 of the ten signal cables 14 are sequentially soldered to the fourth ground pad 312, and the signal lines 141 of the ten signal cables 14 cross over the fourth ground pad 312 and then are sequentially soldered to the second signal connection pad 313.

In a word, through the technical scheme of the utility model, the double signal shielding of HDMI data line has been realized, transmission effect is improved; in addition, a new welding structure is provided, welding can be facilitated, and line disorder is avoided.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a HDMI data line, includes wire rod (1) and sets up first connector (2) and second connector (3) at this wire rod (1) both ends, wherein, wire rod (1) has first shielding layer (11) and cladding first insulating layer (12) in this first shielding layer (11) outside, its characterized in that:

four ground wires (13) and ten signal cables (14) are arranged in a tubular cavity formed by the first shielding layer (11), two ends of the four ground wires (13) and the ten signal cables (14) are respectively connected to the first connector (2) and the second connector (3), the four ground wires (13) are uniformly distributed by taking the axial lead of the tubular cavity as the center, and the ten signal cables (14) are uniformly distributed on the outer sides of the four ground wires (13) by taking the axial lead of the tubular cavity as the center;

each signal cable (14) comprises a pair of signal wires (141), the pair of signal wires (141) are covered by a second shielding layer (142), and a second insulating layer (143) is arranged on the outer surface of the second shielding layer (142).

2. The HDMI data line of claim 1, wherein:

the adjacent ground lines (13) are abutted against each other in the circumferential direction.

3. The HDMI data line of claim 1, wherein:

the adjacent signal cables (14) are abutted against each other in the circumferential direction.

4. The HDMI data line of claim 1, wherein:

an inclined braid wrapping layer (15) is arranged between the first shielding layer (11) and the first insulating layer (12).

5. The HDMI data line of claim 1, wherein:

the first connector (2) comprises a first PCB circuit board (21), the first PCB circuit board (21) is provided with a first ground pad (211), a second ground pad (212) and a first signal wiring pad (213), and the first signal wiring pad (213) is positioned in front of the second ground pad (212);

the first terminals of the four ground wires (13) are welded to the first ground wire bonding pad (211), the first ends of the second shielding layers (142) of the ten signal cables (14) are sequentially welded to the second ground wire bonding pad (212), and the signal wires (141) of the ten signal cables (14) cross the second ground wire bonding pad (212) and then are sequentially welded to the first signal bonding pad (213).

6. The HDMI data line of claim 5, wherein:

the first ground pad (211) and the second ground pad (212) are arranged side by side.

7. The HDMI data line of claim 5, wherein:

the second connector (3) comprises a second PCB (31), the second PCB (31) is provided with a third ground pad (311), a fourth ground pad (312) and a second signal wiring pad (313), and the second signal wiring pad (313) is positioned in front of the fourth ground pad (312);

second terminals of the four ground wires (13) are welded to the third ground wire bonding pad (311), second ends of the second shielding layers (142) of the ten signal cables (14) are sequentially welded to the fourth ground wire bonding pad (312), and the signal wires (141) of the ten signal cables (14) cross the fourth ground wire bonding pad (312) and then are sequentially welded to the second signal bonding pad (313).