CN215069326U

CN215069326U - Light and soft high-temperature-resistant film wrapped insulated signal transmission wire and cable for aerospace

Info

Publication number: CN215069326U
Application number: CN202121543210.7U
Authority: CN
Inventors: 胡志贞; 胡灯有; 姜宝翔
Original assignee: Yangzhou Huayu Cable Co ltd
Current assignee: Yangzhou Huayu Cable Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-12-07
Anticipated expiration: 2031-07-07

Abstract

The application discloses a soft high-temperature-resistant film-wrapped insulated signal transmission wire cable for aerospace, which sequentially comprises an outer sheath, an outer shielding layer, an outer insulating layer and a flame-retardant layer from outside to inside, wherein the flame-retardant layer is internally provided with a first cable core, a plurality of second cable cores and a plurality of filling core wires; the second cable core comprises a shielding copper belt layer and two wire cores positioned in the shielding copper belt layer, and each wire core comprises a second conductor and a second insulating layer covering the second conductor; the number of the second cable cores is equal to that of the filling core wires. The cable has excellent electrical insulation performance and mechanical and physical properties, is flame-retardant, impact-resistant, chemical corrosion-resistant and high/low temperature-resistant, and is suitable for the fields of aviation, ships, communication and the like.

Description

Light and soft high-temperature-resistant film wrapped insulated signal transmission wire and cable for aerospace

Technical Field

The application relates to the field of cables, in particular to a soft high-temperature-resistant film wrapped insulated signal transmission wire and cable for aerospace.

Background

Typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The transmission content can be classified into a power cable, a signal cable, and the like, and the signal cable is a signal transmission means. Generally, the signal transmitted by the signal cable is very small, and in order to avoid the signal from being interfered, a shielding layer and a shielding layer of a wrapped conductor are arranged outside the signal cable. Particularly, in some occasions with high requirements and high signal transmission requirements, the shielding requirements on the cable are higher, the signal quantity to be transmitted is large, and the cable is required to have certain mechanical properties, temperature resistance and corrosion resistance, so that the stable use of the cable is ensured.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the application aims at overcoming the defects of the prior art and provides the light and soft high-temperature-resistant film wrapped insulated signal transmission wire and cable for aerospace.

The technical scheme is as follows: a soft high-temperature-resistant film-wrapped insulated signal transmission wire cable for aerospace sequentially comprises an outer sheath, an outer shielding layer, an outer insulating layer and a flame-retardant layer from outside to inside, wherein a first cable core, a plurality of second cable cores and a plurality of filling core wires are arranged in the flame-retardant layer; the second cable core comprises a shielding copper belt layer and two wire cores positioned in the shielding copper belt layer, and each wire core comprises a second conductor and a second insulating layer covering the second conductor; the number of the second cable cores is equal to that of the filling core wires.

Further, the first conductor and the second conductor are both copper conductors.

Further, the outer insulating layer is a polytetrafluoroethylene film wrapping layer; the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.

Further, the first insulating layer and the second insulating layer are both fluoroplastic polymer insulating layers.

Further, the outer sheath is made of a polyurethane material.

Further, the inner sheath is made of a polyethylene material.

Further, the filling core wire is made of a polytetrafluoroethylene material.

Further, the outer shielding layer is a copper wire braided shielding layer.

Has the advantages that: the cable has excellent electrical insulation performance and mechanical and physical properties, is flame-retardant, impact-resistant, chemical corrosion-resistant and high/low temperature-resistant, and is suitable for the fields of aviation, ships, communication and the like.

Drawings

Fig. 1 is a schematic cross-sectional view of a cable.

Detailed Description

Reference numerals: 1.1 an outer sheath; 1.2 outer shielding layer; 1.3 an outer insulating layer; 1.4 flame retardant layer; 2.1 a second conductor; 2.2 a second insulating layer; 2.3 shielding copper tape layer; 3 filling the core wire; 4.1 inner protecting layer; 4.2 weaving a shielding layer by using a tinned copper wire; 4.3 silver-plated copper foil tape; 4.4 a first insulating layer; 4.5 first conductor.

As shown in fig. 1: a soft high-temperature-resistant film-wrapped insulated signal transmission wire cable for aerospace sequentially comprises an outer sheath 1.1, an outer shielding layer 1.2, an outer insulating layer 1.3 and a flame-retardant layer 1.4 from outside to inside, wherein a first cable core, a plurality of second cable cores and a plurality of filling core wires are arranged in the flame-retardant layer 1.4, and the first cable core sequentially comprises an inner sheath 4.1, a tinned copper wire braided shielding layer 4.2, a silvered copper foil belting layer 4.3, a first insulating layer 4.4 and a first conductor 4.5 from outside to inside; the second cable core comprises a shielding copper belt layer 2.3 and two wire cores positioned in the shielding copper belt layer 2.3, wherein each wire core comprises a second conductor 2.1 and a second insulating layer 2.2 covering the second conductor 2.1; the number of the second cable cores is equal to that of the filling core wires 3.

The first conductor 4.5 and the second conductor 2.1 are both copper conductors. The outer insulating layer 1.3 is a polytetrafluoroethylene film wrapping layer; the flame-retardant layer 1.4 is a low-smoke halogen-free flame-retardant layer. The first insulating layer 4.4 and the second insulating layer 2.2 are both fluoroplastic polymer insulating layers. The outer sheath 1.1 is made of a polyurethane material. The inner sheath 4.1 is made of polyethylene material. The filling core wire 3 is made of polytetrafluoroethylene material. The outer shielding layer 1.2 is a copper wire braided shielding layer.

As shown in the figure, first cable core and a plurality of second cable core have in the cable of this application, thereby the signal volume that the cable can transmit is big, and first, two cable cores have independent shielding layer separately, and it is first to have the outer shielding layer that surrounds, two cable cores, thereby it is effectual to shield, cooperate a plurality of filling heart yearns, a plurality of insulating layers and fire-retardant layer, thereby holistic mechanical properties is good, milk extrusion, resistant dragging, resistant high low temperature, corrosion-resistant, thereby can use for a long time steadily in fields such as some spacecrafts, boats and ships.

Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. The light and high-temperature-resistant film-wrapped insulated signal transmission wire cable for aerospace is characterized by sequentially comprising an outer sheath, an outer shielding layer, an outer insulating layer and a flame-retardant layer from outside to inside, wherein the flame-retardant layer is internally provided with a first cable core, a plurality of second cable cores and a plurality of filling core wires; the second cable core comprises a shielding copper belt layer and two wire cores positioned in the shielding copper belt layer, and each wire core comprises a second conductor and a second insulating layer covering the second conductor; the number of the second cable cores is equal to that of the filling core wires.

2. The aerospace light and high temperature resistant film-wrapped insulated signal transmission wire cable according to claim 1, wherein the first conductor and the second conductor are both copper conductors.

3. The aerospace light and high temperature resistant film-wrapped insulated signal transmission wire and cable according to claim 1, wherein the outer insulating layer is a polytetrafluoroethylene film wrapping layer; the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.

4. The aerospace light weight, high temperature resistant, film wrapped, insulated signal transmitting wire and cable of claim 1, wherein the first and second insulating layers are fluoroplastic polymer insulating layers.

5. The aerospace light and high temperature resistant film-wrapped insulated signal transmission wire and cable according to claim 1, wherein the outer sheath is made of a polyurethane material.

6. The aerospace light weight, high temperature resistant, thin film wrapped, insulated signal transmitting wire and cable of claim 1, wherein the inner sheath is made of polyethylene material.

7. The aerospace light and high temperature resistant film-wrapped insulated signal transmission wire cable according to claim 1, wherein the filler core wire is made of a polytetrafluoroethylene material.