CN221352449U - Cable structure and data cable - Google Patents

Abstract

The present application provides a cable structure and a data cable, which relate to the technical field of electronic product accessories. The cable structure includes a signal wire harness and an insulating coating layer, wherein the insulating coating layer is wrapped around the outside of the signal wire harness, and the signal wire harness includes a first wire and a foam metal layer wrapped around the outside of the first wire. Through the above-mentioned arrangement, the porous structural characteristics of the foam metal are utilized, so that the external electromagnetic waves or interference signals are reflected multiple times inside the foam metal layer, and the loss is greatly increased. Therefore, the shielding effect is improved without increasing the thickness of the foam metal layer, which not only reduces the size and weight of the cable structure, but also improves the reliability of the cable structure.

Description

Cable structure and data line

Technical Field

The present application relates to the technical field of electronic product accessories, and in particular to a cable structure and a data cable.

Background technique

With the development of electronic technology and digital information industry, people have higher and higher requirements for data transmission. USB data cables, HDMI data cables, Ethernet data cables and other data cables play a vital role in the field of data transmission.

The cable part of the data line is used to transmit signals such as electrical signals and communication signals. The cable part generally needs to add a shielding layer to ensure the stability and reliability of data transmission, prevent it from being affected by external electromagnetic fields or interference signals, and also prevent the interference electromagnetic fields or signals in the cable from spreading outward.

Traditional data cable designs often use an external shielding layer composed of a braided mesh and an aluminum foil layer to provide electromagnetic shielding protection. However, as the demand for current transmission of data cables increases, the diameter of the high-current wire harness inside the data cable increases, and the thickness and amount of shielding materials also increase greatly, which not only increases the size, weight and production cost of the cable, but is also prone to breakage under long-term use, affecting the shielding effect, reducing product reliability, and affecting the user experience.

Utility Model Content

In view of this, the present application provides a cable structure and a data cable, which are used to improve the shielding effect and reliability of the cable structure.

Specifically, the following technical solutions are included:

In a first aspect, an embodiment of the present application provides a cable structure, including a signal wire harness and an insulating coating, wherein the insulating coating is wrapped around the outside of the signal wire harness, and the signal wire harness includes a first conductor and a foam metal layer wrapped around the outside of the first conductor.

In an optional embodiment, the foam metal layer is in a strip shape and is spirally wound around the outside of the first conductive wire.

In an optional embodiment, the foam metal layer (111) is wrapped around the outside of the first conductive wire in an overlapping manner without leaving any gaps.

In an optional embodiment, at the end of the cable structure, the foam metal layer is turned outward to the outside of the insulating coating layer.

In an optional embodiment, the signal wire harness further includes a tensile wire arranged in parallel with the first conductive wire, and the tensile wire and the first conductive wire are both located in the foam metal layer.

In an optional embodiment, the first conductive wire and the tensile wire are twisted together.

In an optional embodiment, the first conductive line includes a signal line and a ground line.

In an optional embodiment, the cable structure also includes two second conductors, which are distributed on both sides of the signal harness along a first direction, and the insulating coating is coated on the outside of the two second conductors. In a cross-section of the cable structure, the width of the cable structure along the first direction is greater than the width of the cable structure along the second direction, wherein the first direction is perpendicular to the second direction.

In an optional embodiment, the outer contour of the cross section of the cable structure is oval.

In an optional embodiment, the insulating coating layer is a foam material layer.

In a second aspect, an embodiment of the present application provides a data cable, comprising the cable structure provided by any embodiment of the first aspect.

The beneficial effects of the technical solution provided in the embodiment of the present application include at least: by setting a foam metal layer and utilizing the porous structural characteristics of the foam metal inside to use the foam metal layer as a shielding layer, external electromagnetic waves or interference signals are reflected multiple times inside the foam metal layer, and the loss is greatly increased. Therefore, the shielding effect is improved without increasing the thickness of the foam metal layer, which not only reduces the size and weight of the cable structure, but also improves the reliability of the cable structure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic cross-sectional view of a cable structure provided in an embodiment of the present application.

The reference numerals in the figures represent respectively:

1-cable structure; 11-signal wire bundle; 111-foam metal layer; 112-tensile wire; 113-signal wire; 114-ground wire; 12-insulating coating layer; 121-foam pores; 13-second conductor.

The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

The directional nouns involved in the embodiments of the present application, such as "horizontal", "vertical", "upper", "outer", etc., are generally based on the relative relationship of the orientation shown in Figure 1, and these directional nouns are used only to more clearly describe the relationship between structures, and are not intended to describe absolute orientations.

Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as those generally understood by those of ordinary skill in the art. Some technical terms appearing in the embodiments of the present application are explained below.

In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

As shown in Figure 1, an embodiment of the present application provides a cable structure 1, which is suitable for data cables, charging devices, cables and other products that need to transmit power, signals or data. For example, the cable structure 1 is suitable for USB data cables, HDMI data cables, Ethernet data cables and other data cables used in electronic devices.

The cable structure 1 includes a signal wire harness 11 and an insulating coating 12 . The insulating coating 12 is wrapped around the outside of the signal wire harness 11 . The signal wire harness 11 includes a first conductive wire and a foam metal layer 111 wrapped around the outside of the first conductive wire.

Among them, the first wire is used to transmit electrical signals, communication signals, etc. The foam metal layer 111 is coated on the outside of the first wire and can serve as a shielding layer to prevent the signal from escaping from the signal harness 11 and affecting the quality of signal transmission, while preventing interference from external electromagnetic waves or interference signals.

The function of the insulating coating 12 is to insulate the conductors in the cable structure 1 from the conductors in the external environment, thereby preventing the short circuit between the conductors in the cable structure 1 and the medium or conductors in the external environment, thereby ensuring the safety of the cable structure 1.

The foam metal layer 111 is made of porous foam metal. Foam metal is a special metal material with many pores inside. It has the advantages of low density, good heat insulation, good sound insulation and the ability to absorb electromagnetic waves. It is widely used in a series of industrial developments such as aerospace, petrochemicals, etc.

By way of example, the foam metal layer 111 may be made of foam copper or foam aluminum.

Due to the porous structural characteristics of the foam metal, external electromagnetic waves or interference signals are reflected multiple times inside the foam metal layer 111, and the loss is greatly increased. Therefore, even if the foam metal layer 111 is thin, it can still have a good shielding effect.

Compared with the prior art method of using a woven mesh and an aluminum foil layer as a shielding structure, the foam metal layer 111 of the cable structure 1 provided in the embodiment of the present application reduces the thickness while ensuring the anti-interference effect, which is beneficial to reducing the overall size of the cable structure 1, improving the softness of the cable structure 1, and avoiding increasing the size of the cable structure 1 due to the large cross-sectional size of the foam metal layer 111, making the cable structure 1 difficult to bend and affecting the user experience; at the same time, it also reduces the production cost and process difficulty of the cable structure 1.

The cable structure 1 provided in the embodiment of the present application, by setting a foam metal layer 111, uses the porous structure characteristics of the foam metal inside to use the foam metal layer 111 as a shielding layer, so that external electromagnetic waves or interference signals are reflected multiple times inside the foam metal layer 111, and the loss is greatly increased. Therefore, the shielding effect of the cable structure 1 is improved without increasing the thickness of the foam metal layer 111, which not only reduces the size and weight of the cable structure 1, but also improves the reliability of the cable structure 1.

In a further embodiment, the foam metal layer 111 is in a strip shape and is spirally wound around the outside of the first conductive wire.

Specifically, the foam metal layer 111 is made of foam metal foil and has a small thickness. The foam metal layer 111 is spirally wrapped around the outer circumference of the first conductive wire to fully surround the first conductive wire.

Exemplarily, the foam metal foil is foam copper foil or foam aluminum foil.

Furthermore, the foam metal layer 111 is wrapped around the outside of the first wire in an overlapping manner without leaving any gaps, so as to tightly wrap the first wire, thereby ensuring the shielding rate of external electromagnetic waves or interference signals, and preventing the signal from escaping from the signal harness 11 and affecting the signal transmission quality.

In this embodiment, by setting the foam metal layer 111 in a strip shape, the thickness of the foam metal layer 111 is reduced, which is beneficial to reducing the size, weight and production cost of the cable structure 1. By setting the foam metal layer 111 to be spirally wound around the outside of the first conductor in an overlapping manner and without leaving a gap, it is beneficial to improve the anti-interference effect of the cable structure 1.

In a further embodiment, at the end of the cable structure 1 , the foam metal layer 111 is turned outward to the outside of the insulating coating layer 12 .

In this embodiment, the foam metal layer 111 extends from both ends of the cable structure 1 in the length direction and is turned outward to the outside of the insulating coating 12. When the two ends of the cable structure 1 are welded to the connector of the data cable, the foam metal layer 111 is fixed to the insulating coating 12 by the rivet claws on the connector iron shell. Since the foam metal layer 111 is conductive, it can share the loop impedance.

In a further embodiment, the signal wire harness 11 further includes a tensile wire 112 arranged in parallel with the first wire, and the tensile wire 112 and the first wire are both located in the foam metal layer 111 .

Exemplarily, the tensile wire 112 is a tensile nylon wire, which is tough and wear-resistant and is used to improve the softness and toughness of the cable structure 1 , prevent the cable structure 1 from being broken due to excessive stretching or twisting, and help to increase the service life of the cable structure 1 .

The number of the tensile wires 112 in the signal wire harness 11 may be one or more. For example, as shown in FIG. 1 , the number of the tensile wires 112 is five.

In a further embodiment, the first conductive wire and the tensile wire 112 are twisted together.

Specifically, the first conductive wire and the tensile wire 112 are integrated into a bundle and concentrically interwoven and twisted, which is not only beneficial for subsequent processing but also can improve the anti-swaying property of the cable structure 1 and increase the flexibility of the cable structure 1 .

In a specific embodiment, the first conductive line includes a signal line 113 and a ground line 114 .

As shown in Fig. 1, the first conductor includes two ground wires 114 and two signal wires 113. During the manufacturing process of the cable structure 1, the ground wires 114, the signal wires 113 and the tensile wires 112 are twisted.

In one embodiment, as shown in FIG1 , the cable structure 1 further includes two second conductors 13, the two second conductors 13 are distributed on both sides of the signal harness 11 along a first direction, and the insulating coating 12 is coated on the outside of the two second conductors 13, and in a cross section of the cable structure 1, the width of the cable structure 1 along the first direction is greater than the width of the cable structure 1 along the second direction, wherein the first direction is perpendicular to the second direction.

The first direction is the horizontal direction in Figure 1, and the second direction is the vertical direction in Figure 1. Figure 1 is a schematic cross-sectional view taken along a plane perpendicular to the length direction of the cable structure 1. As shown in Figure 1, the width of the cable structure 1 along the first direction is greater than the width of the cable structure 1 along the second direction, and the cross-sectional shape of the cable structure 1 is relatively flat.

Most cables on the current market include power cables, data transmission cables and other wiring harnesses, which are wrapped with plastic sheaths to form cables in the shape of a rotating body. However, in order to meet the needs of high current transmission of data cables, the diameter of the wiring harness inside the cable increases, resulting in a significant increase in the overall diameter of the cable, which reduces the softness and resilience of the cable and makes it difficult to bend, causing inconvenience in use and affecting the user experience. At the same time, it increases the material used in the cable, which is not conducive to reducing the production cost of the cable.

In the embodiment of the present application, the two second conductors 13 are distributed on both sides of the signal harness 11 along the first direction, and the cable structure 1 is flat in shape. Compared with the cable in the shape of a rotating body in the prior art, the cable structure 1 provided in the embodiment of the present application has a reduced cross-sectional size, increased resilience and flexibility, which improves the user's feel and enhances the user's experience.

Furthermore, as shown in FIG. 1 , the outer contour of the cross section of the cable structure 1 is oval.

In this embodiment, the cable structure 1 with a round cross-sectional outer contour is smoother in appearance and less prone to wear, tangling or entanglement.

In one embodiment, the insulating coating layer 12 is a foam material layer having foam pores 121 therein.

Exemplarily, the insulating coating layer 12 is made of polymer materials such as foam TPE (Thermoplastic Elastomer), foam TPU (Thermoplastic Urethane), foam silicone rubber, etc., and has the advantages of light weight, low dielectric constant, heat insulation, and anti-interference, and can effectively improve the transmission speed and quality of the signal.

The embodiment of the present application further provides a data cable, including the cable structure 1 provided in any of the above embodiments. Exemplarily, the data cable is a data cable used in electronic devices such as a USB data cable, an HDMI data cable, and an Ethernet data cable.

In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims (11)

1. A cable structure (1), characterized in that it comprises a signal wire harness (11) and an insulating coating (12), wherein the insulating coating (12) is wrapped around the outside of the signal wire harness (11), and the signal wire harness (11) comprises a first conductor and a foam metal layer (111) wrapped around the outside of the first conductor. 2. The cable structure (1) according to claim 1, characterized in that the foam metal layer (111) is in the shape of a strip and is spirally wound around the outside of the first conductor. 3. The cable structure (1) according to claim 2, characterized in that the foam metal layer (111) is wrapped around the outside of the first conductor in an overlapping manner and without leaving any gaps. 4. The cable structure (1) according to claim 2, characterized in that, at the end of the cable structure (1), the foam metal layer (111) is turned outward to the outside of the insulating coating layer (12). 5. The cable structure (1) according to claim 1 is characterized in that the signal wire harness (11) further comprises a tensile wire (112) arranged in parallel with the first conductive wire, and the tensile wire (112) and the first conductive wire are both located in the foam metal layer (111). 6. The cable structure (1) according to claim 5, characterized in that the first conductive wire and the tensile wire (112) are twisted together. 7. The cable structure (1) according to claim 6, characterized in that the first conductive wire comprises a signal wire (113) and a ground wire (114). 8. The cable structure (1) according to claim 1 is characterized in that the cable structure (1) further comprises two second conductors (13), the two second conductors (13) are distributed on both sides of the signal harness (11) along a first direction, and the insulating coating (12) is coated on the outside of the two second conductors (13), and in a cross section of the cable structure (1), the width of the cable structure (1) along the first direction is greater than the width of the cable structure (1) along the second direction, wherein the first direction is perpendicular to the second direction. 9. The cable structure (1) according to claim 8, characterized in that the outer contour of the cross section of the cable structure (1) is oval. 10. The cable structure (1) according to any one of claims 1 to 9, characterized in that the insulating coating layer (12) is a foam material layer. 11. A data cable, characterized by comprising the cable structure (1) according to any one of claims 1 to 10.