Patent Application
20240071651
This patent application claims priority of a Chinese Patent Application No. 202211043805.5, filed on Aug. 30, 2022 and titled “CABLE”, the entire content of which is incorporated herein by reference.
The present disclosure relates to a cable, which belongs to the technical field of cable connectors.
With the development and popularization of electronic technology products, signal cables are widely used in home appliances, instrumentation, automation equipment, data centers, servers, switches, cloud computing and 5G fields as a signal transmission tool. However, in the process of signal transmission, cables are easily interfered by external electromagnetic signals, so shielding structure design is often required to eliminate or reduce the interference of external electromagnetic fields, and at the same time, it can prevent the leakage of transmission signals.
Therefore, it is desirable to provide a cable with improved shielding effect and stable signal transmission to solve the above problems.
An object of the present disclosure is to provide a cable with improved shielding effect and stable signal transmission.
In order to achieve the above object, the present disclosure adopts the following technical solution: a cable, including: a core wire; a shielding layer located on a periphery of the core wire; the shielding layer including at least a first metal layer and a second metal layer; the first metal layer and the second metal layer having different metal materials, respectively; the first metal layer and the second metal layer being integrally composited; and an insulating skin, at least part of the insulating skin being located on a periphery of the shielding layer.
In order to achieve the above object, the present disclosure adopts the following technical solution: a cable, including: a first metal conductor; a first insulator at least partially wrapped on the first metal conductor; a second metal conductor, the first metal conductor and the second metal conductor being disposed side by side along a width direction; a second insulator at least partially wrapped on the second metal conductor; and a shielding layer located on a periphery of the first insulator and a periphery of the second insulator; the shielding layer including at least a first metal layer and a second metal layer; the first metal layer and the second metal layer having different metal materials, respectively; the first metal layer and the second metal layer being integrally composited; wherein the cable is not provided with a ground wire; and wherein the first metal layer is an outer layer of the shielding layer away from the core wire; the second metal layer is an inner layer of the shielding layer close to the core wire; and at least part of the first metal layer is configured as a grounding element of the cable.
Compared with the prior art, the cable of the present disclosure has the beneficial effects that the double-layer metal layers improve the shielding effect of the high-speed signal cable and improves the reliability of signal transmission.
Exemplary embodiments will be described in detail here, examples of which are shown in drawings. When referring to the drawings below, unless otherwise indicated, same numerals in different drawings represent the same or similar elements. The examples described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.
The terminology used in this application is only for the purpose of describing particular embodiments, and is not intended to limit this application. The singular forms “a”, “said”, and “the” used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings.
It should be understood that the terms “first”, “second” and similar words used in the specification and claims of this application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, “an” or “a” and other similar words do not mean a quantity limit, but mean that there is at least one; “multiple” or “a plurality of” means two or more than two. Unless otherwise noted, “front”, “rear”, “lower” and/or “upper” and similar words are for ease of description only and are not limited to one location or one spatial orientation. Similar words such as “include” or “comprise” mean that elements or objects appear before “include” or “comprise” cover elements or objects listed after “include” or “comprise” and their equivalents, and do not exclude other elements or objects. The term “a plurality of” mentioned in the present disclosure includes two or more.
Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
Referring to
In an embodiment of the present disclosure, the core wire includes a first metal conductor 11, a first insulator 21 at least partially wrapped on the first metal conductor 11, a second metal conductor 12, and a second insulator 22 at least partially wrapped on the second metal conductor 12. The intermediate layer material 3 is at least partially wrapped on the first insulator 21 and the second insulator 22. Of course, in another embodiment, the first insulator 21 and the second insulator 22 can also be formed as an integral insulator 2, for example, in an oval shape.
In the embodiment shown in the present disclosure, the first metal conductor 11 and the second metal conductor 12 are both cylindrical. The first metal conductor 11 is used for transmitting a first signal, and the second metal conductor 12 is used for transmitting a second signal. In an embodiment of the present disclosure, the first signal and the second signal form a high-speed differential pair. In an embodiment of the present disclosure, the first metal conductor 11 and the second metal conductor 12 are both silver-plated copper wires so as to improve the quality of signal transmission.
Referring to
In an embodiment of the present disclosure, the first insulator 21 is a polyolefin or a fluoropolymer, and the second insulator 21 is a polyolefin or a fluoropolymer. The materials of the first insulator 21 and the second insulator 21 may be the same or different. The intermediate layer material 3 is a buffer insulating layer wound or sleeved outside the first insulator 21 and the second insulator 21. The intermediate layer material 3 has functions of insulation and buffering.
In an embodiment of the present disclosure, the intermediate layer material 3 is made of foamed polyolefin, such as foamed polypropylene. The intermediate layer material 3 is spirally wound on the first insulator 21 and the second insulator 22 along the longitudinal direction L-L of the cable 100. Specifically, the intermediate layer material 3 is continuously wound on the first insulator 21 and the second insulator 22 along the longitudinal direction L-L of the cable 100. Of course, in other embodiments, the intermediate layer material 3 may also be directly sleeved on the first insulator 21 and the second insulator 22.
The shielding layer 4 at least includes a first metal layer 421 and a second metal layer 422. The first metal layer 421 and the second metal layer 422 have different metal materials, respectively. The first metal layer 421 and the second metal layer 422 are integrally composited. The first metal layer 421 is an outer layer of the shielding layer 4 away from the core wire, and the second metal layer 422 is an inner layer of the shielding layer 4 close to the core wire. The cable is not provided with a ground wire. Instead, at least a portion of the first metal layer 421 is configured as a ground element of the cable.
Referring to an embodiment shown in
The base film 41 can be made of polyester material, such as polyethylene terephthalate. The first metal layer 421 is an outer layer of the shielding layer 4 away from the core wire, and the second metal layer 422 is an inner layer of the shielding layer 4 close to the core wire. The first metal layer 421 includes a copper foil, and the second metal layer 422 includes an aluminum foil.
The copper foil is formed as the outer layer of the shielding layer 4, and the aluminum foil is formed as the inner layer of the shielding layer 4. This is because the copper foil is easy to be soldered or welded to a grounding portion of the connector, and a surface of the aluminum foil is easily oxidized. An oxide layer is firm and refractory, making soldering/welding difficult, but the aluminum foil has good toughness, so that the shielding layer 4 is not easy to break.
Referring to
Specifically, referring to
In an embodiment of the present disclosure, referring to
In an embodiment of the present disclosure, as shown in
Further, the connecting area further includes a raised portion 472. Opposite sides of the raised portion 472 are connected to the second joint portion 432 and the second straight portion 471, respectively. The raised portion 472 gradually moves away from the core wire from the second straight portion 471 toward the second connector 432. In some embodiments, the second joint portion 432 is protruded in a direction away from the core wire through the raised portion 472, so that the first metal layer 421 on the outer side of the second joint portion 432 can be more easily soldered or welded to the grounding portion of the connector, or more easily to contact the grounding portion of the connector to improve the electrical effect.
In an embodiment of the present disclosure, as shown in
In an embodiment of the present disclosure, the insulating skin 5 may be made of polyester material.
The present disclosure not only increases a thickness of the shielding layer 4 but also improves the shielding effect of the cable and improves the reliability of signal transmission by providing the double-layer metal layers. The first metal layer 421 is an outer layer of the shielding layer 4. The outer layer is made of copper foil, and the copper foil can be directly soldered or welded to the grounding portion of the connector to form a shielding surface to isolate the signal interference at the joint. At the same time, the setting of the ground wire is cancelled, and the volume of the cable 100 is reduced. The second metal layer 422 is made of aluminum foil, and the first metal layer 421 is made of copper foil, so that the shielding layer 4 has better shielding effect, enhanced toughness, and is not easy to break.
The above embodiments are only used to illustrate the present disclosure and not to limit the technical solutions described in the present disclosure. The understanding of this specification should be based on those skilled in the art. Descriptions of directions, although they have been described in detail in the above-mentioned embodiments of the present disclosure, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the application, and all technical solutions and improvements that do not depart from the spirit and scope of the application should be covered by the claims of the application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202211043805.5 | Aug 2022 | CN | national |
