TWM619183U - Cable - Google Patents

Abstract

A cable is provided. The cable comprises a conductor for transmitting electrical signals, an insulating layer covering the conductor along the length direction of the cable, and a shield layer covering the insulating layer along the length direction of the cable. The shield layer comprises multiple conductive flat wires which are spirally wound along the length direction of the cable to cover the insulating layer, wherein the conductive flat wires are parallel to each other and do not overlap with each other.

Description

cable

This creation is about a cable, especially a cable with a shielding layer formed by covering a plurality of conductive flat wires.

Cables are generally formed of four layers of materials, including the innermost conductive core, an insulating layer outside the conductive core, a conductive layer outside the insulating layer, and a protective sheath. The conductive layer outside the insulating layer serves as a shielding layer. Used to prevent external interference signals from entering the inner conductive core and interfering with signal transmission.

The shielding layer is generally composed of metal wire mesh or metal foil. However, the metal wire mesh is formed by overlapping metal wires, and the overlap may cause problems such as an increase in the thickness of the insulating layer and a large gap between the shielding layers. In addition, the shielding layer made of metal foil is usually formed by longitudinal wrapping (also known as "cigar wrapping"). However, due to the fact that the manufacturing process also has the problem of metal foil overlapping, this will also disadvantageously increase the thickness of the shielding layer. . Although trying to reduce the thickness of the metal foil can reduce the thickness of the shielding layer, it will relatively reduce the strength of the metal foil, affect mechanical reliability, and increase the difficulty of the manufacturing process.

This creation provides a cable that has the advantages of short process time and low cost, and does not have the above-mentioned overlap problem. It can effectively reduce the thickness of the shielding layer, so that a larger proportion of conductors can be configured in the same size cable. Transmit signals to improve signal transmission efficiency.

Therefore, one purpose of this creation is to provide a cable that includes: Conductor, used for signal transmission, An insulating layer covering the conductor along the length of the cable, and Shielding layer, covering the insulating layer along the length of the cable, Wherein, the shielding layer includes a plurality of conductive rectangular wires, the plurality of conductive rectangular wires are arranged parallel to each other without overlapping, and the insulating layer is wrapped in a spirally wound manner along the length direction of the cable.

In some implementation aspects of this creation, the shielding layer includes 5 to 12 conductive rectangular wires.

In some implementation aspects of this creation, the conductive rectangular wire has a width and a thickness perpendicular to the length direction, the width is greater than the thickness, and the width may be, for example, 0.05 mm to 0.8 mm.

In some implementation aspects of this creation, the conductive rectangular wire has a width and a thickness perpendicular to the length direction, the width is greater than the thickness, and the thickness may be, for example, 0.001 mm to 0.08 mm.

In some implementation aspects of this creation, the conductive rectangular wire is provided by squashing a conductive round wire. The conductive rectangular wire has a width and a thickness perpendicular to the length direction, and the width is greater than the thickness. , And the ratio of the diameter of the conductive round wire to the thickness of the conductive rectangular wire (ie, the diameter of the conductive round wire/the thickness of the conductive rectangular wire) is 1 to 6.

In some implementation aspects of this creation, the conductive rectangular wire is selected from the following groups: copper wire, copper alloy wire, copper wire with metal plating, copper alloy wire with metal plating, and combinations thereof.

In some implementations of this creation, the conductor system contains copper conductors.

In some implementation aspects of this creation, the material of the insulating layer is selected from the following groups: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene ( PTFE), tetrafluoroethylene-perfluoroether copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, thermoplastic elastomer (TPE) , And combinations thereof.

In some implementation aspects of this creation, the cable further includes a protective layer covering the shielding layer along the length of the cable. The material of the protective layer can be selected from the following groups: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoroether Copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, thermoplastic elastomer (TPE), and combinations thereof.

In order to make the above-mentioned purpose, technical features and advantages of this creation more obvious and easy to understand, the following is a detailed description of some specific implementation aspects.

The following will specifically describe some specific implementation aspects based on this creation; however, without departing from the spirit of this creation, this creation can still be practiced in many different forms, and the protection scope of this creation should not be limited to the specific Implementation status.

Unless otherwise specified, "a", "the" and similar terms used in this specification and the scope of the patent application shall be understood to include singular and plural forms.

1. cable

The creative cable can be a coaxial cable or a non-coaxial cable. Figure 1 is a schematic diagram of an implementation of the creative cable, and Figures 2A, 2B, 3A and 3B are cross-sectional views of some implementations of the creative cable. As shown in the figure, the cable 1 includes a conductor 11 from the inside to the outside, an insulating layer 13 covering the conductor along the length of the cable, a shielding layer 15 covering the insulating layer along the length of the cable, and The length direction of the cable covers the protective layer 19 of the shielding layer. The cable created by this invention has the advantages of short process time and low cost, and can effectively reduce the thickness of the shielding layer, so that a larger proportion of conductors can be configured in the same size cable to improve signal transmission efficiency. The detailed description of each part of the cable is provided below.

1.1. conductor

The conductor 11 is used to transmit signals. It can be composed of a single conductive wire (as shown in Figure 1), or can be composed of multiple conductive wires, and the number is not particularly limited. For example, Figure 2A illustrates the use of three conductive wires to form the conductor 11 As for the aspect, FIG. 2B exemplifies the aspect in which 7 conductive wires constitute the conductor 11, but the present creation is not limited to this. In addition, each of the conductive wires can be collectively covered in a single insulating layer 13, as shown in FIGS. 2A and 2B, or can be individually covered in different insulating layers 13 in any combination, as shown in FIGS. 3A and 3B.

The material of the conductor 11 is not particularly limited, and can be any material known in the technical field of the creation that can be used for cable signal transmission. Examples of the conventional materials that can be used for signal transmission in cables include, but are not limited to, copper-containing conductors (that is, made of copper-containing conductive wires) or copper conductors (that is, made of copper wires). In some implementation aspects of this creation, the conductor 11 is an annealed soft copper wire, an annealed graphene copper alloy wire, or a hard copper wire.

1.2. Insulation

The insulating layer 13 is used to provide the insulation function of the conductor 11, and its thickness is not particularly limited as long as it can provide the desired insulation effect. The insulating layer 13 can use insulating materials known in the technical field to which this creation belongs. Examples of the conventional insulating materials include, but are not limited to, selected from the following groups: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), four Fluoroethylene-perfluoroether copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, thermoplastic elastomer (TPE), and combinations thereof . Examples of thermoplastic elastomers (TPE) include, but are not limited to, styrene-based thermoplastic elastomers, polyolefin-based thermoplastic elastomers, polyurethane-based thermal elastomers, and polyetherester-based thermoplastic elastomers. In some implementation aspects of this creation, the material of the insulating layer 13 is polytetrafluoroethylene (PTFE), hexafluoropropylene-tetrafluoroethylene copolymer (FEP) or a combination thereof.

1.3. Shield

As shown in Figure 1, in this creative cable, the shielding layer 15 is formed by a plurality of conductive rectangular wires 151 arranged parallel to each other and not overlapping each other. The conductive rectangular wires 151 are wrapped in a spirally wound along the length direction of the cable 1. Cover the insulating layer 13.

The number of the conductive rectangular wires 151 is not particularly limited, and can be adjusted according to the size of the insulating layer 13 to be covered or the size of the conductive rectangular wires 151 used. In some implementation aspects of this creation, the shielding layer 15 is composed of 5 to 12 conductive flat wires 151, specifically 5, 6, 7, 8, 9, 10, and 11 , Or 12 conductive flat wires 151, but this creation is not limited to this.

The size of the conductive rectangular wire 151 can be adjusted as needed. In the preferred embodiment of this creation, the conductive rectangular wire 151 has a width and a thickness perpendicular to the length direction, the width may be 0.05 mm to 0.8 mm, more preferably 0.06 mm to 0.75 mm, and the thickness may be 0.001 Mm to 0.08 mm, more preferably 0.002 mm to 0.07 mm, and the width is greater than the thickness. For example, the width of the conductive rectangular wire 151 can be 0.05 mm, 0.06 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm , 0.65 mm, 0.7 mm, 0.75 mm, or 0.8 mm. The thickness of the conductive flat wire 151 can be 0.001 mm, 0.002 mm, 0.005 mm, 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, 0.03 mm, 0.035 mm, 0.04 mm, 0.045 mm, 0.05 mm, 0.055 mm, 0.06 mm, 0.065 mm, 0.07 mm, 0.075 mm, or 0.08 mm.

In this creation, the conductive flat wire 151 refers to a conductive wire with a cross section with a width greater than the thickness (or "height") perpendicular to the length of the wire, and the shape of the cross section is not particularly limited. For example, Figures 4A, 4B, and 4C illustrate part of the cross-section of the conductive flat wire of the creative cable. The cross-section has an oval-like shape (not a perfect circle, as shown in Figure 4A), and a rounded rectangular shape. (As shown in Fig. 4B), or rectangular shape (as shown in Fig. 4C), and has a width a and a thickness b, where a>b, but this creation is not limited to the above aspect. In some implementation aspects of this creation, the conductive flat wire 151 is provided by squashing a conductive round wire, so it has a cross-sectional shape similar to that shown in FIG. 4A, and has a width and a thickness. Greater than the thickness, and the degree of flattening of the conductive round wire is such that the ratio of the diameter of the conductive round wire before flattening to the thickness of the flat conductive wire obtained after flattening (ie the diameter of the conductive round wire/the flat conductive wire The thickness of the wire) is 1 to 6, more specifically, 2 to 5, such as 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6 , 3.7, 3.8, 3.9, 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, or 4.9.

There may be a gap 17 between the conductive rectangular wires 151 (the conductive rectangular wires 151 are not in contact with each other) or there is no gap 17 (the conductive rectangular wires 151 are in contact with each other), but in order to provide a sufficient shielding effect, the gap 17 The size is better so that the shielding rate of the shielding layer 15 is 85% or more, for example, 86% or more, 86.5% or more, 87% or more, 87.5% or more, 88% or more, 88.5% or more, 89% or more, 89.5% or more, 90% Above, above 90.5%, above 91%, above 91.5%, above 92%, above 92.5%, above 93%, above 93.5%, above 94%, above 94.5%, above 95%, above 95.5%, above 96%, 96.5% or more, 97% or more, 97.5% or more, 98% or more, 99% or more, or 99.5% or more. Without being limited by theory, it is believed that the higher the shielding rate of the shielding layer 15, the better the shielding effect.

The material of the conductive rectangular wire 151 is not particularly limited, and can be any shielding layer material known in the technical field to which this creation belongs. The conventional shielding layer materials include, but are not limited to, wires selected from the following groups: copper wires, copper alloy wires, copper wires with metal plating, copper alloy wires with metal plating, and combinations thereof. Examples of the copper wires or copper alloy wires with metal plating include, but are not limited to, silver-plated copper wires or copper alloy wires, tin-plated copper wires or copper alloy wires, and nickel-plated copper wires or copper alloy wires. In some implementation aspects of this creation, the conductive rectangular wire 151 is an oxygen-free copper rectangular wire.

1.4. The protective layer

The protective layer 19 is used to protect the cable 1 from damage by external factors, and its thickness is not particularly limited as long as it can provide the desired protective effect, and its material can use protective layer materials known in the technical field to which this creation belongs. The conventional protective layer material includes, but is not limited to, selected from the following groups: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), tetrafluoroethylene Ethylene-perfluoroether copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, thermoplastic elastomer (TPE), and combinations thereof. Examples of thermoplastic elastomers (TPE) include, but are not limited to, styrene-based thermoplastic elastomers, polyolefin-based thermoplastic elastomers, polyurethane-based thermal elastomers, and polyetherester-based thermoplastic elastomers. In some implementation aspects of this creation, the material of the protective layer 19 is polyethylene terephthalate (PET).

The above-mentioned embodiments are only illustrative to illustrate the principle and effect of this creation, and to illustrate the technical features of this creation, and are not used to limit the scope of protection of this creation. Any changes or arrangements that can be easily completed by those familiar with the technology are within the scope of this creation. Therefore, the scope of protection of the rights of this creation is as listed in the attached patent scope.

1: cable

11: Conductor

13: Insulation layer

15: shielding layer

151: Conductive flat wire

17: gap

19: protective layer

a: width

b: thickness

Figure 1 is a schematic diagram of an implementation aspect of the creative cable. Figure 2A is a cross-sectional view of an implementation aspect of the creative cable. Figure 2B is a cross-sectional view of another embodiment of the creative cable. Figure 3A is a cross-sectional view of another embodiment of the creative cable. Figure 3B is a cross-sectional view of another embodiment of the creative cable. Fig. 4A is a cross-sectional view of a conductive flat wire of one embodiment of the creative cable. Fig. 4B is a cross-sectional view of the conductive flat wire of another embodiment of the creative cable. Fig. 4C is a cross-sectional view of the conductive flat wire of another embodiment of the creative cable.

1: cable

11: Conductor

13: Insulation layer

15: shielding layer

151: Conductive flat wire

17: gap

19: protective layer

Claims (10)

A cable comprising: a conductor for signal transmission, an insulating layer, covering the conductor along the length of the cable, and a shielding layer covering the insulating layer along the length of the cable, wherein the shielding layer includes a plurality of Conductive rectangular wires, the plurality of conductive rectangular wires are arranged parallel to each other without overlapping each other, and the insulating layer is wrapped in a manner of spirally winding along the length direction of the cable. The cable according to claim 1, wherein the shielding layer includes 5 to 12 conductive rectangular wires. The cable according to claim 1, wherein the conductive rectangular wire has a width and a thickness in a direction perpendicular to the length, the width is greater than the thickness, and the width is 0.05 mm to 0.8 mm. The cable according to claim 1, wherein the conductive rectangular wire has a width and a thickness in a direction perpendicular to the length, the width is greater than the thickness, and the thickness is 0.001 mm to 0.08 mm. The cable according to claim 1, wherein the conductive rectangular wire is provided by flattening a conductive round wire, the conductive rectangular wire has a width and a thickness perpendicular to the length direction, and the width is greater than the thickness , And the ratio of the diameter of the conductive round wire to the thickness of the conductive rectangular wire is 1 to 6. The cable according to any one of claims 1 to 5, wherein the conductive rectangular wire is selected from the following group: copper wire, copper alloy wire, copper wire with metal plating, copper alloy wire with metal plating, and Its combination. The cable according to any one of claims 1 to 5, wherein the conductive system contains a copper conductor. The cable according to any one of claims 1 to 5, wherein the material of the insulating layer is selected from the following group: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP) , Polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoroether copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, Thermoplastic elastomer (TPE), and combinations thereof. The cable according to any one of claims 1 to 5, further comprising a protective layer covering the shielding layer along the length of the cable. The cable according to claim 9, wherein the material of the protective layer is selected from the following group: polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene ( PTFE), tetrafluoroethylene-perfluoroether copolymer (PFA), hexafluoropropylene-tetrafluoroethylene copolymer (FEP), polyvinyl chloride (PVC), silicone rubber, thermoplastic elastomer (TPE) , And combinations thereof.

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