CN218676576U

CN218676576U - Coaxial cable

Info

Publication number: CN218676576U
Application number: CN202223027627.5U
Authority: CN
Inventors: 陈湘豫; 张湘龙
Original assignee: Guangxi Hailiantong Intelligent Technology Co ltd; Harumoto Technology Shen Zhen Co ltd; Shenzhen Hilum Technology Co ltd
Current assignee: Guangxi Hailiantong Intelligent Technology Co ltd; Harumoto Technology Shen Zhen Co ltd; Shenzhen Hilum Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-21
Anticipated expiration: 2032-11-14

Abstract

The utility model provides a coaxial cable, which comprises a core wire; an inner insulator, the inner insulator being wrapped around the core wire; the metal plate is wrapped on the inner insulator in a wrapping mode; and the outer rubber covers and contacts the metal plate. The inner insulator is wrapped with the metal plate in a wrapping mode, so that the metal plate replaces an external conductor of the conventional coaxial cable, the weaving or winding process of the external conductor of the conventional coaxial cable can be omitted, the manufacturing efficiency of the coaxial cable is greatly improved, and the waste of manufacturing materials is greatly reduced. In addition, because the metal plate is wrapped on the inner insulator in a wrapping mode, the coaxial cable can be stressed and bent to meet the use requirement.

Description

Coaxial cable

Technical Field

The present invention relates to a coaxial cable, and more particularly, to a coaxial cable in which a metal plate material is used instead of an external electric conductor.

Background

A Coaxial cable (Coaxial cable) is used for transmitting signals, and as shown in fig. 1, a conventional Coaxial cable 2 in the industry includes a core wire 21, an inner insulator 22, an outer conductor 23, and an outer rubber 24 from inside to outside. Generally, the external electric conductor 23 is made by covering several tens of metal wires with the inner insulator 22 in a braided or wound manner by a special device such as a braiding machine or a winding machine. However, the existing braiding machine or winding machine has a limited braiding or winding speed for the metal wires, which results in that the manufacturing efficiency of the coaxial cable cannot be improved, and in the braiding or winding process of the external conductor, a part of tens of metal wires is cut off or broken due to insufficient length, so that the length of the external conductor is insufficient, and even another part of tens of metal wires which are not broken needs to be wasted, which results in a large waste of related manufacturing materials.

Based on the foregoing, how to omit the process of the external conductor in the manufacture of the coaxial cable to improve the manufacturing efficiency of the coaxial cable and reduce the waste of manufacturing materials is a technical problem to be solved primarily in the design of the coaxial cable.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a coaxial cable, comprising: a core wire; an inner insulator, the inner insulator being wrapped around the core wire; the metal plate is wrapped on the inner insulator in a wrapping mode; and the outer rubber covers and contacts the metal plate.

Preferably, in the coaxial cable of this application, this sheet metal has first layer metal subplate and sublayer metal subplate, and this first layer metal subplate wraps the cladding on this internal insulator with the first direction, and this sublayer metal subplate wraps the cladding on this first layer metal subplate with the second direction, wherein, this first direction and this second direction syntropy or reverse.

Preferably, in the coaxial cable of the present application, the first layer of metal sub-plate has a first layer of first loop extension section and a first layer of second loop extension section, the first layer of first loop extension section is connected to the first layer of second loop extension section, so that the first layer of first loop extension section and the first layer of second loop extension section are continuously wrapped on the inner insulator, wherein the first layer of metal sub-plate is wrapped on the inner insulator in a gap wrapping manner, so that the first layer of first loop extension section and the side wall of the first layer of second loop extension section are separated to form a gap; the secondary layer metal sub-plate is provided with a secondary layer first ring extension section and a secondary layer second ring extension section, the secondary layer first ring extension section is connected with the secondary layer second ring extension section, so that the secondary layer first ring extension section and the secondary layer second ring extension section are continuously coated on the primary layer metal sub-plate, and the secondary layer first ring extension section or the secondary layer second ring extension section shields the gap on the primary layer metal sub-plate.

Preferably, in the coaxial cable of the present application, the metal plate has a first layer of metal sub-plate, the first layer of metal sub-plate includes a first layer of first circle extension section and a first layer of second circle extension section, the first layer of first circle extension section is connected to the first layer of second circle extension section, so that the first layer of first circle extension section and the first layer of second circle extension section are continuously wrapped on the inner insulator, wherein the first layer of metal sub-plate is wrapped on the inner insulator in an overlapping wrapping manner or a tight wrapping manner, and when the first layer of metal sub-plate is wrapped on the inner insulator in the overlapping wrapping manner, the first layer of first circle extension section is overlapped with an adjacent portion of the first layer of second circle extension section; when the first layer of metal sub-plate is wrapped on the inner insulator in the tight wrapping mode, the first layer of first circle extension section is contacted with the adjacent part of the first layer of second circle extension section.

Preferably, in the coaxial cable of the present application, the side edge of the metal plate has a side overlapping structure, so that the first loop extension of the first layer is overlapped with the adjacent portion of the second loop extension of the first layer in an abutting manner.

Preferably, in the coaxial cable of the present application, the side overlapping structure extends laterally at an adjacent portion of the first-layer first-turn extension section and the first-layer second-turn extension section, so that the metal plate has a stepped cross section.

Preferably, in the coaxial cable of the present application, the metal plate has a first metal sub-plate and a second metal sub-plate which are overlapped, and the side overlapping structure is disposed at the side of the first metal sub-plate and the second metal sub-plate. Preferably, in the coaxial cable of the present application, the metal plate has a rough surface layer, which improves a bonding force of the metal plate to the inner insulator or the outer rubber.

Preferably, in the coaxial cable of the present application, the metal plate has a plate body and a plating surface layer, the plating surface layer is disposed on a surface layer of the plate body, wherein the plating surface layer protects the plate body and enables electrical characteristics of the plate body to meet expectations.

Preferably, in the coaxial cable of the present application, an inner adhesive layer is further included, and the inner adhesive layer is located between the metal plate and the inner insulator to provide adhesion, so as to improve a bonding force between the metal plate and the inner insulator.

Preferably, in the coaxial cable of this application, still include outer gluing layer, this outer gluing layer is located between this sheet metal and this outer rubber to provide the gluing, thereby improve the engaging force between this sheet metal and this outer rubber.

Compared with the prior art, the coaxial cable has the advantages that the inner insulator is wrapped by the metal plate in a wrapping mode, so that the metal plate replaces an external conductor of the existing coaxial cable, weaving or winding process of the external conductor of the existing coaxial cable can be omitted, manufacturing efficiency of the coaxial cable is greatly improved, and waste of manufacturing materials is greatly reduced. In addition, because the metal plate is wrapped on the inner insulator in a wrapping mode, the coaxial cable can be stressed and bent to meet the use requirement.

Drawings

The above and other aspects, features and other advantages of the present application will be more clearly understood from the following description of the embodiments taken in conjunction with the accompanying drawings.

Fig. 1 is a perspective view of an embodiment of a coaxial cable of the present application;

FIG. 2 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

FIG. 3 is a cross-sectional schematic view of a portion of the components of the coaxial cable shown in FIG. 2;

FIG. 4 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

FIG. 5 is a cross-sectional view of a portion of the components of the coaxial cable shown in FIG. 4;

FIG. 6 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

FIG. 7 is a cross-sectional view of a portion of the components of the coaxial cable shown in FIG. 6;

FIG. 8 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

FIG. 9 is a cross-sectional view of a portion of the components of the coaxial cable shown in FIG. 8;

FIG. 10 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

fig. 11 is a cross-sectional view of a portion of the components of the coaxial cable shown in fig. 10;

FIG. 12 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

fig. 13 is a cross-sectional view of a portion of the components of the coaxial cable shown in fig. 12;

FIG. 14 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

fig. 15 is a cross-sectional view of a portion of the components of the coaxial cable shown in fig. 14;

FIG. 16 is an assembled schematic view of an embodiment of a coaxial cable of the present application;

fig. 17 is a cross-sectional view of a portion of the components of the coaxial cable shown in fig. 16;

fig. 18 is a cross-sectional schematic view of a portion of a member of an embodiment of a coaxial cable of the present application;

FIG. 19 is a cross-sectional schematic view of a portion of a member of the body of the sheet material of the present application;

FIG. 20 is a cross-sectional schematic view of a portion of the components of the body of the panel of the present application.

Description of reference numerals:

1. coaxial cable

11. Core wire

12. Inner insulator

13. Metal plate

130. Plate body

131. First layer of metal sub-plate

1311. First layer first circle extension section

1312. First layer second circle extension section

132. Sub-layer metal plate

1321. First extension of sublayer

1322. Extension section of second circle of sublayer

133. A first metal sub-board

134. Second metal sub-plate

135. Rough surface layer

136. Coating surface layer

137. Side lapping structure

14. Outer rubber

15. Inner adhesive layer

16. Outer adhesive layer

2. Coaxial cable

21. Core wire

22. Inner insulator

23. External conductor

24. Outer rubber sheet

G gap

Detailed Description

The technical content of the present application will be described by specific embodiments in conjunction with the accompanying drawings, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure of the present application. The application is capable of other and different embodiments and of being practiced or of being carried out in various ways. Various modifications and changes may be made in the details of the present description without departing from the spirit of the application, which is also based on different perspectives and applications. In particular, the proportion and the relative position of the various elements in the drawings are merely exemplary in nature, and are not intended to represent the actual conditions under which the present application may be practiced.

For the description of the embodiments of the technical disclosure, please refer to fig. 2 to fig. 20 together.

In the embodiment shown in fig. 2 to 11 of the present application, the coaxial cable 1 of the present application includes: a core wire 11, an inner insulator 12, a metal plate 13 and an outer rubber 14. The inner insulator 12 may be made of polyethylene (pe) or other insulating material, and the inner insulator 12 may cover the core wire 11 to serve as a dielectric, so that the coaxial cable 1 has low capacitance characteristics and thus a signal transmission rate is desirable. The metal sheet 13 is wrapped around the inner insulator 12 to provide shielding protection against external electrical interference. Therefore, the metal plate 13 can replace the external conductor of the existing coaxial cable, and the metal plate 13 is wrapped on the inner insulator 12 in a wrapping mode, so that the coaxial cable 1 can be stressed and bent to meet the use requirement. The outer rubber 14 may be made of plastic (PE, PVC, NC-PVC, LSFH) insulating material, and the outer rubber 14 may cover and contact the metal plate 13 to serve as a Jacket (jack).

In the embodiment shown in fig. 12 to 17 of the present application, the metal plate 13 is wrapped around the inner insulator 12 in a multi-layer wrapping manner, so as to increase the shielding capability of the metal plate 13. In the above embodiment, the metal plate 13 has the first metal sub-plate 131 and the at least one second metal sub-plate 132, as shown in fig. 12 to 15, the first metal sub-plate 131 and the second metal sub-plate 132 are wound on the inner insulator 12 in a multi-layer winding manner in the same direction. As shown in fig. 16 to 17, the first layer of metal sub-plate 131 and the second layer of metal sub-plate 132 are wound on the inner insulator 12 in an inverse multi-layer winding manner.

In addition, as shown in fig. 13 and fig. 15, the first layer of metal sub-plate 131 includes a first layer of first ring extension 1311 and a first layer of second ring extension 1312. The first layer first ring extension 1311 is connected to the first layer second ring extension 1312, such that the first layer first ring extension 1311 and the first layer second ring extension 1312 are continuously wrapped on the inner insulator 12. The sub-layer metal sub-plate 132 includes a sub-layer first loop extension 1321 and a sub-layer second loop extension 1322. The sub-layer first loop extension 1321 is connected to the sub-layer second loop extension 1322, such that the sub-layer first loop extension 1321 and the sub-layer second loop extension 1322 are continuously wrapped on the first metal sub-plate 131.

It should be noted that the first layer of metal sub-plate 131 may be wrapped on the inner insulator 12 in a gap wrapping manner, an overlapping wrapping manner, or a close wrapping manner. Specifically, as shown in fig. 14 to 15, when the first layer of metal sub-plate 131 is wrapped on the inner insulator 12 in a gap-wrapping manner, the first layer of first loop extension 1311 and the first layer of second loop extension 1312 are spaced apart to form a gap G, and the sub-layer of first loop extension 1321 or the sub-layer of second loop extension 1322 shields at least a portion of the gap G on the first layer of metal sub-plate 131, so as to increase the shielding capability of the metal plate 13 and block external electronic interference, and the signal transmission rate of the coaxial cable 1 is in accordance with the expectation.

As shown in fig. 10 to 11, when the first layer of metal sub-plate 131 is wrapped on the inner insulator 12 in an overlapping wrapping manner, the adjacent portions of the first layer of first loop extension 1311 and the first layer of second loop extension 1312 are overlapped, so as to prevent a gap from being formed between the first layer of first loop extension 1311 and the first layer of second loop extension 1312, thereby increasing the shielding capability of the metal plate 13 to block external electronic interference, and enabling the electrical characteristics of the coaxial cable 1 to meet expectations. As shown in fig. 2 to 3, the metal plate 13 has a rectangular cross section (as shown in fig. 2), so that when the first layer of metal sub-plate 131 is wrapped on the inner insulator 12 in a tightly wrapped manner, the first layer of first loop extension 1311 contacts with an adjacent portion of the first layer of second loop extension 1312, and a gap is prevented from being formed between the first layer of first loop extension 1311 and the first layer of second loop extension 1312, so that the shielding capability of the metal plate 13 is increased and external electronic interference is blocked.

It should be noted that, as shown in fig. 4 to fig. 7, the metal plate 13 has a stepped cross section, so that the side edge of the plate body 130 of the metal plate 13 can have a side edge overlapping structure 137, the side edge overlapping structure 137 extends laterally at a position adjacent to the side edge of the first layer first loop extension 1311 and the first layer second loop extension 1312, and the first layer first loop extension 1311 and the side edge adjacent to the first layer second loop extension 1312 are overlapped closely, so as to avoid a gap between the adjacent positions of the side edges of the first layer first loop extension 1311 and the first layer second loop extension 1312, and increase the shielding capability of the metal plate 13 to block external electronic interference. In addition, it should be noted that the cross section of the metal plate 13 is not limited to the step shape, and another irregular cross section (not shown) may be selected to avoid a gap between the adjacent side edges of the first layer first loop extension 1311 and the first layer second loop extension 1312.

In the embodiment shown in fig. 4 to 5 of the present application, the metal plate 13 is a composite material and has a first metal sub-plate 133 and a second metal sub-plate 134 stacked together, wherein a side overlapping structure 137 is disposed at a side of the first metal sub-plate 133 and the second metal sub-plate 134. It should be noted that the materials of the first metal sub-plate 133 and the second metal sub-plate 134 may be selected to be the same or different, so that the electrical characteristics of the metal plate 13 are as expected.

In the embodiment shown in fig. 19 of the present application, the metal plate 13 has a rough surface layer 135 for providing a bonding force for bonding the inner insulator 12 or the outer rubber 14, so as to increase the bonding force of the metal plate 13 for bonding the inner insulator 12 or the outer rubber 14, so that the coaxial cable 1 can be bent under force to meet the use requirement. In addition, in the embodiment shown in fig. 18 of the present application, the coaxial cable 1 includes: an inner adhesive layer 15 and an outer adhesive layer 16. It should be noted that the inner adhesive layer 15 is located between the metal plate 13 and the inner insulator 12 to provide adhesion, so as to improve the joint force between the metal plate 13 and the inner insulator 12, so that the coaxial cable 1 can be bent under stress to meet the use requirement. The outer adhesive layer 16 is located between the metal plate 13 and the outer rubber 14 to provide adhesion, so as to improve the bonding force between the metal plate 13 and the outer rubber 14, so that the coaxial cable 1 can be stressed and bent to meet the use requirement.

In the embodiment shown in fig. 20, the metal plate 13 has a plate body 130 and a plating surface 136, and the plating surface 136 is formed on a surface of the plate body 130. It should be noted that the plating surface layer 136 may provide, for example, oxidation protection or hardening treatment to the plate body 130, so that the electrical characteristics of the metal plate 13 (or the plate body 130) are as expected.

To sum up, the coaxial cable of this application is with wrapping mode cladding sheet metal on the insulator including to replace the external conductor of current coaxial cable through sheet metal, and can save the weaving or the winding processing procedure of the external conductor of current coaxial cable, with the manufacturing efficiency who improves coaxial cable by a wide margin, the waste of more greatly reduced manufacturing material. In addition, because the metal plate is wrapped on the inner insulator in a wrapping mode, the coaxial cable can be stressed and bent to meet the use requirement.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the present application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be as set forth in the claims of the present application.

Claims

1. A coaxial cable, comprising:

a core wire;

an inner insulator surrounding the core wire;

the metal plate is wrapped on the inner insulator in a wrapping mode; and

an outer rubber covering and contacting the metal sheet.

2. The coaxial cable of claim 1, wherein the metal sheet has a first layer of metal sub-sheet and at least one second layer of metal sub-sheet, the first layer of metal sub-sheet is wrapped around the inner insulator in a first direction, and the second layer of metal sub-sheet is wrapped around the first layer of metal sub-sheet in a second direction, wherein the first direction is the same or opposite direction as the second direction.

3. The coaxial cable of claim 2, wherein the first layer of metallic sub-sheet has a first layer of first turn extension and a first layer of second turn extension, the first layer of first turn extension being connected to the first layer of second turn extension such that the first layer of first turn extension and the first layer of second turn extension are continuously wrapped on the inner insulator, wherein the first layer of metallic sub-sheet is wrapped on the inner insulator in a gapped wrapping manner such that the first layer of first turn extension is spaced apart from a sidewall of the first layer of second turn extension to form a gap; the secondary layer metal sub-plate is provided with a secondary layer first ring extension section and a secondary layer second ring extension section, the secondary layer first ring extension section is connected with the secondary layer second ring extension section, so that the secondary layer first ring extension section and the secondary layer second ring extension section are continuously coated on the primary layer metal sub-plate, wherein the secondary layer first ring extension section or the secondary layer second ring extension section shields at least one part of the gap on the primary layer metal sub-plate.

4. The coaxial cable of claim 1, wherein the metal sheet has a first layer of metal subplate, the first layer of metal subplate comprising a first layer of first turn extension and a first layer of second turn extension, the first layer of first turn extension connecting the first layer of second turn extension such that the first layer of first turn extension and the first layer of second turn extension continuously wrap the inner insulator, wherein the first layer of metal subplate wraps the inner insulator in an overlapping or close-wrapping manner, and when the first layer of metal subplate wraps the inner insulator in the overlapping or close-wrapping manner, the first layer of first turn extension overlaps an adjacent portion of the first layer of second turn extension; when the first layer of metal sub-plate is wrapped on the inner insulator in the tight wrapping mode, the first layer of first circle extension section is in contact with the adjacent position of the first layer of second circle extension section.

5. The coaxial cable of claim 4, wherein said metal sheet has side overlapping structure at its sides to allow said first tier first turn extension to abut and overlap adjacent portions of said first tier second turn extension.

6. The coaxial cable of claim 5, wherein said side lap joint structure extends laterally adjacent said first tier first turn extension and said first tier second turn extension to provide said metal sheet material with a stepped cross-section.

7. The coaxial cable of claim 5, wherein the metal plate has a first metal sub-plate and a second metal sub-plate stacked together, and the side lap joint structure is disposed at the side of the first metal sub-plate and the second metal sub-plate.

8. The coaxial cable of claim 1, wherein the metal plate has a rough surface layer that enhances the bonding force of the metal plate to the inner insulator or the outer rubber.

9. The coaxial cable of claim 1, wherein the metal sheet has a sheet body and a plating surface layer disposed on a surface of the sheet body, wherein the plating surface layer protects the sheet body and provides the sheet body with desired electrical characteristics.

10. The coaxial cable of claim 1, further comprising an inner adhesive layer positioned between the metal plate and the inner insulator to provide an adhesive to improve the bonding force between the metal plate and the inner insulator.

11. The coaxial cable of claim 1, further comprising an outer adhesive layer positioned between the metal plate and the outer rubber to provide an adhesive to improve the bonding force between the metal plate and the outer rubber.