CN111696708A

CN111696708A - Anti-interference Ethernet cable for aerospace

Info

Publication number: CN111696708A
Application number: CN202010465925.9A
Authority: CN
Inventors: 章新能; 张丽; 米春海; 付利梅; 吴天凤; 谢飞; 周刚; 孙静
Original assignee: Wuhu Spaceflight Special Cable Factory Co Ltd
Current assignee: Wuhu Spaceflight Special Cable Factory Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-22

Abstract

The invention discloses an anti-interference Ethernet cable for space navigation, which sequentially comprises the following components from outside to inside: the cable comprises a first sheath layer, a first shielding layer and a first wrapping layer; a cavity is formed in the first wrapping layer, a supporting framework is arranged in the cavity, and a plurality of side grooves are formed in the side surface of the supporting framework; an Ethernet cable core is arranged in the side groove and is respectively extruded with the side wall of the side groove and the first wrapping layer; the supporting framework is a foaming framework, and the foaming degree of the supporting framework is 20-40%. The interference-proof Ethernet cable for aerospace has excellent interference-proof performance.

Description

Anti-interference Ethernet cable for aerospace

Technical Field

The invention relates to a cable, in particular to an anti-interference Ethernet cable for space navigation.

Background

In the field of aerospace science and technology, an ethernet cable should have excellent interference prevention performance so as to obtain a better communication effect, interference capability generated by the ethernet cable is strongest due to a close distance between ethernet cable cores in the ethernet cable, but the interference capability cannot be weakened by changing the distance, and therefore, an interference prevention type ethernet cable with excellent interference prevention performance for aerospace is urgently needed.

Disclosure of Invention

The invention aims to provide an anti-interference Ethernet cable for aerospace, which has excellent anti-interference performance.

In order to achieve the above object, the present invention provides an interference-proof ethernet cable for aerospace, comprising, in order from outside to inside: the cable comprises a first sheath layer, a first shielding layer and a first wrapping layer; a cavity is formed in the first wrapping layer, a supporting framework is arranged in the cavity, and a plurality of side grooves are formed in the side face of the supporting framework; an Ethernet cable core is arranged in the side groove and is respectively extruded with the side wall of the side groove and the first wrapping layer; the supporting framework is a foaming framework, and the foaming degree of the supporting framework is 20-40%.

Preferably, a steel wire is embedded in the foaming type framework.

Preferably, the first shielding layer is a tinned copper wire braided layer.

Preferably, the first sheath layer is a soluble polytetrafluoroethylene layer.

Preferably, the first wrapping layer is formed by wrapping an expanded polytetrafluoroethylene film.

Preferably, the ethernet cable core includes from outside to inside: the second sheath layer, the second shielding layer, the second around covering and double strand copper conductor stranded conductor.

Preferably, the second shielding layer is a silver-plated copper wire braided layer.

Preferably, the second sheath layer is a soluble polytetrafluoroethylene layer.

Preferably, the thickness of the second sheath layer is 0.5mm-1 mm.

Preferably, the second wrapping layer is formed by wrapping an expanded polytetrafluoroethylene film.

Other features and advantages of the present invention, in accordance with the above teachings, are set forth in the following detailed description.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a block diagram of a preferred embodiment of an interference-proof ethernet cable for aerospace.

Description of the reference numerals

1 first sheath layer 2 first shielding layer

3 first 4 supporting frameworks around covering

5 steel wire 6 second sheath layer

7 second shielding layer 8 copper conductor stranded wire

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

Referring to fig. 1, the interference-proof ethernet cable for aerospace includes, in order from outside to inside: the cable comprises a first sheath layer 1, a first shielding layer 2 and a first wrapping layer 3; a cavity is formed in the first wrapping layer 3, a supporting framework 4 is arranged in the cavity, and a plurality of side grooves are formed in the side surface of the supporting framework 4; an Ethernet cable core is arranged in the side groove and is respectively extruded with the side wall of the side groove and the first wrapping layer 3; the supporting framework 4 is a foaming framework, and the foaming degree of the supporting framework 4 is 20-40%.

Through the implementation of the technical scheme, the supporting framework 4 adopts the foaming type framework with the foaming degree of 20-40%, the dielectric constant of the supporting framework 4 can be reduced, the insulation characteristic of the supporting framework 4 is improved, the anti-interference performance is improved, the mutual interference between all Ethernet cable cores in the cable can be reduced, the mutual interference between the cable cores can be reduced through the first shielding layer 2, the whole cable has excellent anti-interference performance, the arrangement of a plurality of side grooves is realized, and the first winding layer 3 is arranged on the outer layer, so that the production and the manufacturing of the cable can be facilitated.

In this embodiment, in order to enhance the bending resistance of the whole, it is preferable that the steel wire 5 is embedded in the foamed frame.

In this embodiment, the first shielding layer 2 is preferably a braided layer of tinned copper wire.

In this embodiment, preferably, the first sheath layer 1 is a soluble polytetrafluoroethylene layer.

In this embodiment, the first wrapping layer 3 is preferably formed by wrapping an expanded polytetrafluoroethylene film.

In this embodiment, preferably, the ethernet cable core includes, from outside to inside: second restrictive coating 6, second shielding layer 7, second around covering and double strand copper conductor stranded conductor 8.

In this embodiment, the second shielding layer 7 is preferably a silver-plated copper wire braided layer.

In this embodiment, preferably, the second sheath layer 6 is a soluble polytetrafluoroethylene layer.

In this embodiment, in order to reduce the overall weight, the thickness of the second sheath layer 6 should not be excessively large, and preferably, the thickness of the second sheath layer 6 is 0.5mm to 1 mm.

In this embodiment, preferably, the second wrapping layer is formed by wrapping an expanded polytetrafluoroethylene film.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. An interference-proof Ethernet cable for aerospace, characterized in that the interference-proof Ethernet cable for aerospace comprises from outside to inside in sequence: the cable comprises a first sheath layer (1), a first shielding layer (2) and a first wrapping layer (3);

a cavity is formed in the first wrapping layer (3), a supporting framework (4) is arranged in the cavity, and a plurality of side grooves are formed in the side surface of the supporting framework (4);

an Ethernet cable core is arranged in the side groove and is respectively extruded with the side wall of the side groove and the first wrapping layer (3);

the supporting framework (4) is a foaming framework, and the foaming degree of the supporting framework (4) is 20-40%.

2. The interference-proof ethernet cable for aerospace according to claim 1, wherein steel wires (5) are embedded in the foamed skeleton.

3. Aerospace interference-proof ethernet cable according to claim 1, wherein the first shielding layer (2) is a tinned copper wire braid.

4. Aerospace interference-proof ethernet cable according to claim 1, characterized in that the first jacket layer (1) is a layer of soluble polytetrafluoroethylene.

5. The interference-proof Ethernet cable for aerospace according to claim 1, wherein the first wrapping layer (3) is formed by wrapping an expanded polytetrafluoroethylene film.

6. The interference-proof ethernet cable for aerospace according to any of claims 1-5, wherein said ethernet core comprises from outside to inside: the cable comprises a second sheath layer (6), a second shielding layer (7), a second wrapping layer and a double-strand copper conductor stranded wire (8).

7. The interference-proof Ethernet cable for aerospace according to claim 6, wherein the second shielding layer (7) is a silver-plated copper-wire braided layer.

8. Aerospace interference-proof ethernet cable according to claim 1, wherein the second sheath layer (6) is a layer of soluble polytetrafluoroethylene.

9. Aerospace interference-proof ethernet cable according to claim 8, wherein the thickness of the second sheath layer (6) is 0.5mm-1 mm.

10. The interference-proof Ethernet cable for aerospace according to claim 1, wherein the second wrapping layer is formed by wrapping an expanded polytetrafluoroethylene film.