TWM575179U - Wire assembly and cable using the same - Google Patents

Abstract

A signal conductor pair includes a pair of signal wires, a shield covering the signal wires, two drains positioned at the outside of the shield, and a cover covering the shield and the drains. The signal wires include a signal conductor and an insulation body covering the signal conductor, and the axis of the drain and the axis of the signal wire are on the same line, and there is only one layer of shield.

Description

Core group and cable using the core group

The present invention relates to a core group and a cable using the core group, and more particularly to a high speed signal cable for transmitting high frequency signals.

With the development of electronic technology products, high-speed signal cables are widely used as a means of transmitting signals for the connection of electronic devices such as home appliances, instrumentation, power tools and automation equipment. However, in the signal transmission process, especially in the high-frequency signal transmission process, the cable is extremely susceptible to interference from external electromagnetic signals. Therefore, it is often necessary to adopt a shielding structure design to eliminate or reduce external electromagnetic field interference, and at the same time, to prevent transmission of signals. leakage.

Therefore, it is necessary to provide a new type of shielded cable with strong anti-electromagnetic interference performance, stable signal transmission, reliability and simple manufacture.

The main purpose of the present invention is to provide a core group and a high-speed signal cable using the core group. The high-speed signal cable adopts a completely closed shielding structure to improve the shielding effect against electromagnetic interference, thereby ensuring the reliability of signal transmission.

In order to achieve the above object, the present invention can adopt the following technical solutions: a core group including a pair of signal lines, a shielding layer covering the outside of the signal line, two grounding lines outside the shielding layer, and covering the shielding layer and a sheath on the outer side of the grounding wire, the signal line includes an insulating layer of the signal line conductor and the signal line conductor, the axis of the grounding wire is on the same line as the axis of the signal line, and the shielding layer has only one layer.

In order to achieve the above object, the present invention may adopt the following technical solution: a cable comprising a plurality of the core sets, a fixed layer wrapped on an outer side of the core set, and an outer shield wrapped on an outer side of the fixed layer, And a cable sleeve coated on the outer shielding layer, wherein a pair of the core groups are stacked in a fixed layer.

Compared with the prior art, the creation has the following beneficial effects: the high-performance signal cable has improved electrical characteristics, and has a high-speed data transmission capability of a signal frequency greater than 20 GHz. The shielding layer completely covers the insulating layer, so that the signal line conductor of the signal line is protected from external electromagnetic interference when transmitting signals, and the signal leakage on the signal line conductor can be prevented, thereby ensuring the reliability of signal transmission.

1,21,31‧‧‧core group

11,211,311‧‧‧ signal line

111, 2111, 3111‧‧‧ signal line conductor

112, 2112, 3112‧‧‧Insulation

12,212,312‧‧‧ Grounding wire

13,213,313‧‧‧ Shield

14,214,314‧‧‧ sheath

2,3‧‧‧ Cable

22,32‧‧‧Fixed layer

23,34‧‧‧ outer shield

24,35‧‧‧ cable sets

33‧‧‧ external fixed layer

The first figure is a cross-sectional view of an embodiment of a core set.

The second figure is a cross-sectional view of a first embodiment of the cable.

The third figure is a cross-sectional view of a second embodiment of the cable.

Referring to the first figure, an embodiment of the core group 1 is created. The core group 1 is provided with a signal line 11 from the center, a shielding layer 13 covering the signal line 11, a grounding line 12, and a sheath 14 covering the grounding wire and the shielding layer, wherein the signal lines 11 are arranged in parallel The shielding layer 13 is wound on the outer side of the signal line 11. The distance between the two shield layers wound on the signal line 11 is called the pitch. The smaller the pitch, the tighter the winding. The shielding layer 13 is made of a metal foil, and the electromagnetic shielding performance can be improved by changing the size of the pitch. The signal line 11 includes a signal line conductor 111 and an insulating layer 112. The signal line conductor 111 is made of a silver plated copper conductor for transmitting high frequency signals. The insulating layer 112 encloses the signal line conductor 111 to separate the signal line conductor 111 from the outside. The grounding wire 12 is made of a metal conductor, and the axis of the two grounding wires 12 is in line with the axis of the two signal wires 11, and the grounding wire 12 is electrically connected to the shielding layer 13.

Based on the foregoing embodiment, a first embodiment of the present authoring cable 2 is proposed. The cable 2 includes the core group 21 of the foregoing embodiment, the fixing layer 22 covering the core group 21, the outer shielding layer 23 covering the fixing layer 22, and the cable covering the outer shielding layer. Set of 24. The core group 21 is provided with a signal line 211, a shielding layer 213 covering the signal line 211, a grounding line 212, and a sheath 214 covering the grounding wire and the shielding layer in this order from the center. The signal line 211 includes a signal line conductor 2111 and an insulating layer 2112 wrapped around the signal line conductor 2111. The signal line conductor 2111 is made of a silver plated copper conductor for transmitting high frequency signals. The grounding wire 212 is disposed to be electrically connected to the shielding layer 213.

Based on the foregoing embodiment, a second embodiment of the present authoring cable 3 is proposed. The cable 3 includes the core group 31 of the foregoing embodiment, a fixing layer 32 covering the core group 31, a plurality of the core groups 31 arranged around the outer side of the fixing layer 32, and a wraparound arrangement. The outer fixing layer 33 of the core group 31, the outer shielding layer 34 covering the outer fixing layer 33, and the cable cover 35 covering the outer shielding layer 34. The core group 31 is provided with a signal line 311 and a covered signal line 311 in this order from the center. The shielding layer 313, the grounding wire 312, and the sheath 314 covering the grounding wire and the shielding layer. The signal line 311 includes a signal line conductor 3111 and an insulating layer 3112 wrapped around the outside of the signal line conductor 3111. The signal line conductor 3111 is made of a silver plated copper conductor for transmitting high frequency signals. The grounding wire 312 is disposed to be electrically connected to the shielding layer 313. The plurality of core groups 31 in the fixed layer 32 are stacked.

It will be understood, however, that the present invention has been described in terms of numerous features and features, and is in The shape, size and arrangement of the components within the scope of the principles indicated by the broad general meaning of the terms expressed in the scope of the patent application.

Claims (10)

A core group includes: a pair of signal lines, the signal line includes a signal line conductor and an insulating layer covering the signal line conductor; a shielding layer, the shielding layer covers an outer side of the signal line; the ground line, two places The grounding wire is located outside the shielding layer, the axis of the grounding wire is on the same line as the axis of the signal line; and the sheath is covered on the outer side of the shielding layer and the grounding wire; wherein the shielding layer There is only one floor. The core group according to claim 1, wherein the two signal lines are housed in the shielding layer in parallel and parallel manner. The core set according to claim 1, wherein the two signal lines are stranded in the shielding layer. The core set according to claim 1, wherein the signal line conductor is made of a silver plated copper conductor. The core group according to claim 1, wherein the shielding layer is a metal foil of a switchable pitch. The core set according to claim 1, wherein the ground line extends along the shield layer in a longitudinal direction of the cable. The core set according to claim 1, wherein the sheath is a switchable tape. A cable comprising: a core group, the core group comprising any one of claims 1 to 7 a feature of a core group; a fixed layer, the fixed layer is coated on an outer side of the core group; an outer shield layer, the outer shield layer is wrapped on an outer side of the fixed layer; and a cable sleeve, the cable The sleeve is wrapped on the outer side of the outer shield layer; wherein a pair of the core groups are stacked in a fixed layer. The cable of claim 8, wherein the fixed layer and the outer shield layer comprise a set of annularly arranged core groups, and the outer shield layer and the annular array An outer fixed layer between the core groups. The cable of claim 8, wherein the outer shield is woven or wound around the outer side of the fixed layer.