CN214956173U

CN214956173U - Light low-voltage differential signal transmission cable

Info

Publication number: CN214956173U
Application number: CN202120500168.4U
Authority: CN
Inventors: 黄美华
Original assignee: CHONGQING KEBAO CABLE CO LTD
Current assignee: CHONGQING KEBAO CABLE CO LTD
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-11-30
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a light-duty low pressure difference signal transmission cable relates to the cable field, the utility model discloses a technical scheme includes the cable core and leaks the line, the cable core includes sinle silk, insulating layer and interior sheath from inside to outside, the surface coating of insulating layer has the graphite heat dissipation layer, the cable core with it has shielding layer and outer jacket to leak the line periphery parcel. When local overheat appears, the cable can be prevented from being melted at high temperature due to over concentration in other places where heat is rapidly diffused, and the high-temperature resistance of the cable can be remarkably improved.

Description

Light low-voltage differential signal transmission cable

Technical Field

The utility model relates to a light-duty low pressure difference signal transmission cable mainly relates to the cable field.

Background

Low-voltage differential signals are required to be used for LVDS signal transmission of control systems such as aircraft system communication, control and instrument systems, combat command control systems and military communication, local overhigh temperature occasionally occurs in the use process of cables due to the data transmission and other conditions, the resistivity of the cables is further influenced, even the cables are burnt out due to high temperature, at present, instruments are mostly considered for heat dissipation, and few solutions are available for heat dissipation of the cables.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to above prior art, the utility model provides a light-duty low pressure difference signal transmission cable when local overheated appearing, can avoid because too concentrating the cable high temperature that leads to melts with other places of the quick diffusion of heat, can show the high temperature resistance ability that improves the cable.

In order to achieve the above purpose, the technical scheme of the utility model is that: including cable core and leakage line, the cable core is from inside to outside including sinle silk, insulating layer and interior sheath, the surface coating of insulating layer has graphite heat dissipation layer, the cable core with the outer parcel of leakage line has shielding layer and outer jacket.

The technical principle and the beneficial effects of the utility model are as follows:

through setting up the interference of shielding layer can effectual shielding outside electromagnetic field, set up graphite heat dissipation layer at the insulating layer coating, graphite heat dissipation layer has very good heat conduction effect, when local overheat appears, can avoid because too concentrate the high temperature resistance ability that leads to the cable high temperature to melt with other places of the quick diffusion of heat, can show improvement cable.

Preferably, the insulating layer is a crosslinked polyethylene insulating layer, and crosslinked polyethylene has very good mechanical property and electrical property and can play a good insulating role.

Preferably, the inner protection layer is a mica tape layer and a chlorinated polyethylene sheath, the mica tape layer has a good high temperature resistance, and the chlorinated polyethylene sheath can better protect the cable core from being interfered by the external environment.

Preferably, the mica tape layer and the chlorinated polyethylene sheath are adhered into a whole through an adhesive, and the position of the mica tape layer can be fixed relative to the chlorinated polyethylene sheath through the adhesive, so that the mica tape layer is prevented from being too loose, and a better high-temperature-resistant effect can be realized.

Preferably, the adhesive is hot melt adhesive, so that the mica tape layer and the chlorinated polyethylene can be fixed more conveniently.

Preferably, a filling rope is filled between each cable core and the leakage line, so that the overall compactness and tensile property of the cable are improved.

Preferably, the cable cores are twisted together, the leakage line is arranged in a groove formed by twisting the cable cores, the space inside the cable is better utilized, and the overall compactness is improved.

Preferably, the shielding layer is a shielding aluminum foil layer, and the shielding aluminum foil layer can enable the cable to have a better shielding effect on electromagnetic interference.

Preferably, the outer jacket adopts the chlorinated polyethylene material, has better wear resistance, the inside structure of better protection cable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only 1 of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

The cable comprises a cable core 1, an insulating layer 2, a graphite heat dissipation layer 3, a mica tape layer 4, a chlorinated polyethylene sheath 5, a shielding layer 6, an outer protective layer 7, a leakage line 8 and a filling rope 9.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in figure 1, the embodiment of the utility model provides a include the cable core and leak the line 8, each the cable core with it has the packing rope 9 to fill between the leak line 8, improves the holistic degree of compactness of cable and tensile strength ability. The cable cores are twisted together, the leakage line 8 is arranged in a groove formed by twisting the cable cores, the space inside the cable is better utilized, and the overall compactness is improved.

The cable core comprises a wire core 1, an insulating layer 2 and an inner protective layer from inside to outside,

the insulating layer 2 is a crosslinked polyethylene insulating layer 2, and crosslinked polyethylene has very good mechanical property and electrical property and can play a good insulating role.

The outer surface of the insulating layer 2 is coated with a graphite heat dissipation layer 3, and the peripheries of the cable core and the leakage line 8 are wrapped with a shielding layer 6 and an outer protective layer 7.

Through setting up the interference of shielding layer 6 can effectual shielding outside electromagnetic field, set up graphite heat dissipation layer 3 at insulating layer 2 coating, graphite heat dissipation layer 3 has very good heat conduction effect, when local overheated appearing, can avoid because too concentrating and lead to cable high temperature to melt, can show the high temperature resistance ability that improves the cable with other places of the quick diffusion of heat.

The inner protection layer is a mica tape layer 4 and a chlorinated polyethylene sheath 5, the mica tape layer 4 has a good high-temperature-resistant effect, and the chlorinated polyethylene sheath 5 is combined to better protect the cable core 1 from being interfered by an external environment. Mica tape layer 4 with chlorinated polyethylene sheath 5 passes through the adhesive adhesion in an organic whole, can be fixed mica tape layer 4's position relative chlorinated polyethylene sheath 5 through the adhesive, avoids mica tape layer 4 too loose, can consider the better effect that plays high temperature resistance. The adhesive adopts hot melt adhesive, so that the mica tape layer 4 can be more conveniently fixed with the chlorinated polyethylene.

The shielding layer 6 is a shielding aluminum foil layer, and the shielding aluminum foil layer can enable the cable to have a better shielding effect on electromagnetic interference. The outer jacket is made of chlorinated polyethylene, so that the cable is better in wear resistance and better in structure for protecting the inside of the cable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a light-duty low pressure difference signal transmission cable, its characterized in that includes cable core and leakage line (8), the cable core is from inside to outside including sinle silk (1), insulating layer (2) and interior sheath, the surface coating of insulating layer (2) has graphite heat dissipation layer (3), the cable core with the peripheral parcel of leakage line (8) has shielding layer (6) and outer jacket (7).

2. A lightweight low voltage differential signaling cable according to claim 1, further comprising: the insulating layer (2) is a crosslinked polyethylene insulating layer (2).

3. A lightweight low voltage differential signaling cable according to claim 1, further comprising: the inner protective layer is a mica tape layer (4) and a chlorinated polyethylene sheath (5).

4. A lightweight low voltage differential signaling cable according to claim 3, wherein: the mica tape layer (4) and the chlorinated polyethylene sheath (5) are adhered into a whole through an adhesive.

5. A lightweight low voltage differential signaling cable according to claim 4, wherein: the adhesive is hot melt adhesive.

6. A lightweight low voltage differential signaling cable according to claim 1, further comprising: and filling ropes (9) are filled between the cable cores and the leakage lines (8).

7. A lightweight low voltage differential signaling cable according to claim 1, further comprising: the cable cores are twisted together, and the leakage line (8) is arranged in a groove formed by twisting the cable cores.

8. A lightweight low voltage differential signaling cable according to claim 1, further comprising: the shielding layer (6) is a shielding aluminum foil layer.

9. A lightweight low voltage differential signaling cable according to claim 1, further comprising: the outer protective layer is made of chlorinated polyethylene.