HDMI 2.0 ground wire structure
By employing a multi-layer shielding structure in the HDMI 2.0 cable, consisting of an aluminum foil shielding layer, an aluminum-magnesium braided mesh, and a tinned copper ground wire, the problem of the outer shielding layer's inability to suppress high-frequency interference is solved, thereby improving the stability of signal transmission and the security of the equipment.
Patent Information
- Application Number
- CN202422915758.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The outer shielding layer of existing HDMI 2.0 cables is difficult to effectively suppress high-frequency interference, affecting signal quality, and poor grounding will reduce shielding effectiveness.
It adopts a multi-layer shielding structure, including an aluminum foil shielding layer, an aluminum-magnesium braided mesh, and a tin-plated copper ground wire, combined with a graphene covering layer, to provide an effective grounding path to reduce electromagnetic interference and improve the stability and reliability of signal transmission.
Through multi-layer shielding structure and effective grounding path, electromagnetic interference is significantly reduced, protecting the clarity and stability of signal transmission, improving the shielding effectiveness of the cable, and ensuring the safety of equipment and personnel.
Smart Images

Figure CN223638160U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to HDMI technical field especially is HDMI2.0 ground wire structure. BACKGROUND
[0002] HDMI2.0 is a kind of high-definition multimedia interface standard, it supports higher resolution and frame rate, including 4K resolution and 60 frames per second (fps) video transmission. In addition, HDMI2.0 also supports up to 32 audio channels and audio sampling rate up to 1536kHz, and a variety of lossless audio formats. HDMI2.0 also introduces some new features, such as enhanced audio return channel and dynamic HDR.
[0003] The Chinese patent with application No. CN202321457052.2 discloses an anti-tension optical fiber type HDMI data cable, which belongs to the technical field of cables. The data cable comprises an optical fiber cable and a wire cable surrounding the optical fiber cable. The optical fiber cable comprises a first sheath and a plurality of optical fibers arranged in the first sheath. The wire cable comprises a plurality of wires arranged in the circumferential direction of the first sheath, an outer shielding layer surrounding the plurality of wires, and a second sheath surrounding the outer shielding layer. A first filling layer is arranged between the plurality of optical fibers and the first sheath, and aramid yarn filling medium is arranged between the plurality of wires and the outer shielding layer.
[0004] In the above-mentioned prior art, the wires are shielded from interference by the outer shielding layer. However, in actual use, HDMI signals contain high-frequency components, and it is often difficult to fully suppress these high-frequency interferences by relying solely on the outer shielding layer design, which may affect signal quality. In addition, the effectiveness of the shielding layer is largely dependent on good grounding. If the grounding is not good, it will hinder the effective guidance of interference current, thereby reducing the shielding effectiveness. UTILITY MODEL CONTENT
[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an HDMI2.0 ground wire structure with high shielding and anti-interference advantages.
[0006] To achieve the above-mentioned purposes and other related purposes, the utility model provides the following technical scheme:
[0007] The HDMI2.0 ground wire structure comprises an HDMI connector, one end of the HDMI connector is provided with a cable body, the cable body comprises an aluminum foil shielding layer arranged on the inner wall of a woven mesh tube, the inner wall of the aluminum foil shielding layer is provided with a plurality of cores, the outer side of each core is sleeved with an HDPE insulating layer, the outer side of each HDPE insulating layer is provided with an aluminum foil sleeve, and the outer side of the aluminum foil shielding layer is provided with an aluminum-magnesium woven mesh.
[0008] The outer side of the cable body is provided with a braided mesh tube, and the connection part of the cable body and the HDMI connector is provided with a reinforcing rib.
[0009] The above technical solution is realized, the aluminum foil sleeve, the aluminum foil shielding layer and the aluminum-magnesium braided mesh are used for multi-layer shielding of the cable body, so that the electromagnetic interference is reduced, the signal transmission clarity and stability are protected, then under the action of the tinned copper ground wire, an effective grounding path is provided, the electromagnetic interference is further reduced, the equipment and personnel safety are protected, the signal transmission stability and reliability are improved, and the shielding effectiveness of the cable body is improved.
[0010] In an embodiment of the utility model, the cable body further includes a tinned copper ground wire arranged between the aluminum foil shielding layer and the aluminum-magnesium braided mesh, the outer side of the tinned copper ground wire is provided with a graphene covering layer, the inner wall of the aluminum foil shielding layer is provided with a tensile cotton core, the outer side of the aluminum-magnesium braided mesh is provided with a PVC sleeve, and the outer side of the aluminum foil sleeve is provided with a transparent mylar layer.
[0011] The above technical solution is realized, the aluminum-magnesium braided mesh is used as a wire shielding material, needs to have good conductivity, high-density braiding to ensure effective shielding of electromagnetic interference, and sufficient mechanical strength and flexibility to adapt to different installation requirements.
[0012] In an embodiment of the utility model, the HDPE insulation layer is provided with multiple groups and is uniformly distributed in the aluminum foil shielding layer.
[0013] The above technical solution is realized, the HDPE insulation layer wraps the wire core and is used for providing excellent electrical insulation performance.
[0014] In an embodiment of the utility model, the aluminum foil shielding layer is attached to the aluminum-magnesium braided mesh, and the outer side of the graphene covering layer is in contact with the aluminum foil shielding layer and the aluminum-magnesium braided mesh respectively.
[0015] The above technical solution is realized, the graphene covering layer is used for improving the conductivity and corrosion resistance of the tinned copper ground wire and reducing energy loss.
[0016] In an embodiment of the utility model, the tensile cotton core is located at the inner center of the aluminum foil shielding layer, and the aluminum-magnesium braided mesh is fixedly connected to the inner wall of the PVC sleeve.
[0017] The above technical solution is realized, the tensile cotton core is used for enhancing the mechanical strength and flexibility of the cable.
[0018] Compared with the prior art, the utility model has the following beneficial effects after adopting the above technical solution, of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below:
[0019] The utility model provides HDMI2.0 ground structure, include: HDMI joint, the one end of HDMI joint is equipped with cable body, the cable body includes the aluminum foil shielding layer of setting in the inside wall of braided mesh pipe, the inside wall of aluminum foil shielding layer is provided with a plurality of wire core, the outside of a plurality of wire core all is equipped with HDPE insulating layer, a plurality of HDPE insulating layer outside all is provided with aluminum foil cover, the outside of aluminum foil shielding layer is provided with aluminum magnesium braided mesh, the outside of cable body is equipped with braided mesh pipe, the junction of cable body and HDMI joint is equipped with reinforcing rib, the both sides of HDMI joint all are seted up with recess.
[0020] The specific embodiments of the utility model will be described in further detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0021] The drawings in the following description are only some embodiments, and other drawings can be obtained according to these drawings without the creative labor of the ordinary skilled in the art. In the drawings:
[0022] Figure 1 It is the three-dimensional structure schematic diagram of an embodiment of the utility model.
[0023] Figure 2 It is the overhead structure schematic diagram of an embodiment of the utility model.
[0024] Figure 3 It is the cable body structure schematic diagram of an embodiment of the utility model.
[0025] Figure 4 It is Figure 3 It is the enlarged structure schematic diagram of A in the middle.
[0026] Figure 5 It is the tinned copper ground wire structure schematic diagram of an embodiment of the utility model.
[0027] In the drawings, the component list represented by each sign is as follows:
[0028] 1, HDMI connector; 2, cable body; 201, aluminum foil shielding layer; 202, wire core; 203, HDPE insulation layer; 204, aluminum foil sleeve; 205, aluminum magnesium woven mesh; 206, tinned copper ground wire; 207, graphene cover layer; 208, tensile cotton core; 209, PVC sleeve; 210, transparent Mylar layer; 3, woven mesh tube; 4, reinforcing rib; 5, groove. DETAILED DESCRIPTION
[0029] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.
[0030] Please refer to Figures 1-5 It should be understood that the structure, proportion, size, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.
[0031] Please refer to Figures 1-5 The present application provides a HDMI 2.0 ground structure, comprising: a HDMI connector 1; a cable body 2 is arranged at one end of the HDMI connector 1, a woven mesh tube 3 is arranged on the outer side of the cable body 2, the woven mesh tube 3 is used to increase the strength of the cable body 2, a reinforcing rib 4 is arranged at the connection between the cable body 2 and the HDMI connector 1, the arrangement of the reinforcing rib 4 can reduce the fracture at the connection between the HDMI connector 1 and the cable body 2, grooves 5 are arranged on both sides of the HDMI connector 1, the arrangement of the grooves 5 on both sides of the HDMI facilitates the connection of the HDMI and the equipment.
[0032] Please refer to Figures 3-5The cable body 2 comprises an aluminum foil shielding layer 201 arranged on the inner wall of the braided mesh tube 3, the application of the aluminum foil shielding layer 201 in the cable is mainly to prevent electromagnetic interference, protect the clarity and stability of signal transmission, the inner wall of the aluminum foil shielding layer 201 is provided with a plurality of cores 202, the outer side of the plurality of cores 202 is sleeved with an HDPE insulation layer 203, the HDPE insulation layer 203 mainly provides excellent electrical insulation performance, protects the internal conductor of the cable from the influence of the external environment, ensures the safe and stable transmission of current or signal, the HDPE insulation layer 203 is provided in multiple groups and uniformly distributed in the aluminum foil shielding layer 201, the outer side of the plurality of matched HDPE insulation layers 203 is provided with an aluminum foil sleeve 204, the aluminum foil sleeve 204 is mainly used to enhance the electromagnetic shielding effect of the cable, the outer side of the aluminum foil shielding layer 201 is provided with an aluminum-magnesium braided mesh 205, the aluminum-magnesium braided mesh 205 is mainly used to provide good mechanical strength and electromagnetic shielding performance, effectively resist external electromagnetic interference, ensure the quality and stability of signal transmission, the cable body 2 further comprises a tinned copper ground wire 206 arranged between the aluminum foil shielding layer 201 and the aluminum-magnesium braided mesh 205, the tinned copper ground wire 206 is mainly to provide an effective grounding path, reduce electromagnetic interference, protect equipment and personnel safety, the outer side of the tinned copper ground wire 206 is provided with a graphene covering layer 207, the graphene covering layer 207 is used to improve the conductivity and corrosion resistance of the tinned copper ground wire 206, reduce energy loss, the aluminum foil shielding layer 201 is in close contact with the aluminum-magnesium braided mesh 205, the outer side of the graphene covering layer 207 is in contact with the aluminum foil shielding layer 201 and the aluminum-magnesium braided mesh 205 respectively, the inner wall of the aluminum foil shielding layer 201 is provided with a tensile cotton core 208, the tensile cotton core 208 is used to enhance the mechanical strength and flexibility of the cable, prevent the internal structure of the cable from being damaged when bending or stretching, the outer side of the aluminum-magnesium braided mesh 205 is provided with a PVC sleeve 209, the PVC sleeve 209 provides good insulation performance and physical protection, prevents the influence of moisture, chemicals and mechanical damage on the internal structure of the cable, and has flame retardant performance, improves the safety of use, the tensile cotton core 208 is located at the inner center of the aluminum foil shielding layer 201, the aluminum-magnesium braided mesh 205 is fixedly connected to the inner wall of the PVC sleeve 209, the outer side of the aluminum foil sleeve 204 is provided with a transparent Mylar layer 210, the transparent Mylar layer 210 mainly plays an insulating and isolating role, and provides ductility, so that the wire is tightly wrapped and the lay length is stable.
[0033] Specifically, the cable body 2 is shielded by the aluminum foil sleeve 204 during use, the aluminum foil shielding layer 201 is provided for double shielding, mainly to prevent electromagnetic interference, protect the clarity and stability of signal transmission, the application of the tinned copper ground wire 206 in the cable mainly provides an effective grounding path, reduces electromagnetic interference, protects equipment and personnel safety, and improves the stability and reliability of signal transmission, and finally under the action of the aluminum magnesium woven mesh 205, the shielding performance of the cable body 2 to electromagnetic is further improved during use, effectively resisting external electromagnetic interference, and ensuring the quality and stability of signal transmission.
[0034] The HDMI 2.0 ground wire structure has the advantages of high shielding and anti-interference compared with a traditional form.
[0035] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. An HDMI 2.0 ground structure, characterized by, Include: HDMI connector; One end of the HDMI connector is provided with a cable body, the cable body includes an aluminum foil shielding layer arranged in the inner wall of the braided mesh tube, the inner wall of the aluminum foil shielding layer is provided with a plurality of wire cores, the outer side of the plurality of wire cores is sleeved with an HDPE insulation layer, the outer side of the plurality of matched HDPE insulation layers is provided with an aluminum foil sleeve, and the outer side of the aluminum foil shielding layer is provided with an aluminum magnesium braided mesh; The outer side of the cable body is provided with a braided mesh tube, and the connection between the cable body and the HDMI connector is provided with a reinforcing rib, and the two sides of the HDMI connector are provided with grooves.
2. The HDMI 2.0 ground structure of claim 1, wherein, The cable body further comprises a tinned copper ground wire arranged between the aluminum foil shielding layer and the aluminum magnesium braided mesh, the outer side of the tinned copper ground wire is provided with a graphene covering layer, the inner wall of the aluminum foil shielding layer is provided with a tensile cotton core, the outer side of the aluminum magnesium braided mesh is provided with a PVC sleeve, and the outer side of the aluminum foil sleeve is provided with a transparent mylar layer.
3. The HDMI 2.0 ground structure of claim 2, wherein, The HDPE insulation layer is provided with a plurality of groups and is uniformly distributed in the aluminum foil shielding layer.
4. The HDMI 2.0 ground structure of claim 2, wherein, The aluminum foil shielding layer is matched with the aluminum magnesium braided mesh, and the outer side of the graphene covering layer is respectively in contact with the aluminum foil shielding layer and the aluminum magnesium braided mesh.
5. The HDMI 2.0 ground structure of claim 2, wherein, The tensile cotton core is located at the inner center of the aluminum foil shielding layer, and the aluminum magnesium braided mesh is fixedly connected to the inner wall of the PVC sleeve.
Citation Information
Patent Citations
Tensile optical fiber HDMI data cable
CN219979179U