VR wire structure

Abstract

The utility model discloses a VR wire structure, including from outside to inside setting in proper order outer protective sheath, outer shielding layer and function wire core group, and function wire core group includes at least one video signal transmission wire core, at least one high -speed data transmission wire core, at least one control signal transmission wire core and at least one power transmission wire core, video signal transmission wire core is annular array layout in wire upper area, high -speed data transmission wire core is layout in wire lower area, and power transmission wire core is arranged in the region with the maximum spacing with other signal transmission wire core. The utility model discloses the VR wire structure of design, through the partition layout and independent shielding design of different function wire core, maximization reduces signal crosstalk, guarantees each type signal independent, stable transmission, adopts the synergies of outer protective sheath and outer shielding layer, has strengthened wire anti -bending, anti -tugging ability, prolongs the life, compact structure has improved the space utilization rate and overall performance of wire.

Description

Technical Field

[0001] This utility model belongs to the field of cable development technology, and specifically relates to a VR cable structure. Background Technology

[0002] With the rapid development of VR technology, the performance requirements for VR devices' connecting cables are becoming increasingly stringent. In traditional VR cables, when multiple types of signals (such as video, control, and power) are transmitted in the same cable, crosstalk can easily occur due to unreasonable cable layout, leading to problems such as image delay and loss of control commands. Furthermore, during VR device use, the cables are frequently bent and stretched, causing the internal structure of traditional cables to loosen, resulting in broken cores, poor contact, and other malfunctions, and a short lifespan. Therefore, a new VR cable structure was designed to address these issues.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a VR wire structure.

[0005] To achieve the above and other related objectives, the technical solution provided by this utility model is: a VR cable structure, comprising an outer protective sleeve, an outer shielding layer, and a functional core group arranged sequentially from the outside to the inside. The functional core group includes at least one video signal transmission core, at least one high-speed data transmission core, at least one control signal transmission core, and at least one power transmission core. The video signal transmission cores are arranged in a ring array in the upper region of the cable. This ring array arrangement fixes the relative positions of the multiple video cores, ensuring consistent impedance characteristics and facilitating signal synchronization. Concentrating them in the upper region to leave space for the layout of other functional cores is key to achieving a zoned layout. The high-speed data transmission cores are located in the lower region of the cable; the power transmission cores are located in the region with the maximum spacing from other signal transmission cores. For differential lines transmitting high-definition video and high-speed data (such as A-group and B-group cores), they are highly sensitive to external interference. By maximizing the physical distance, the parasitic capacitance and mutual inductance between the power line and signal line are greatly reduced, thereby fundamentally weakening the energy coupling pathway.

[0006] Furthermore, the video signal transmission line core adopts a differential wire structure, including two first insulated core wires, a first shielding layer wrapping around these two first insulated core wires, and a first ground wire. The differential structure has strong anti-common-mode interference capability; the ground wire can effectively drain current for transmitting high-definition VR video signals.

[0007] Furthermore, the first insulated core wire consists of a first inner conductor and a first insulating layer wrapped around it; the first inner conductor is stranded oxygen-free copper wire, the first insulating layer is foamed polyethylene, and the first shielding layer is an aluminum foil shielding layer. The stranded oxygen-free copper wire has good conductivity and flexibility, and the foamed polyethylene insulation reduces the dielectric constant, reducing signal attenuation; the use of aluminum foil for partial shielding provides the first line of defense against interference, ensuring low-latency and high-fidelity transmission of high-definition video signals.

[0008] Furthermore, the high-speed data transmission line core adopts a differential wire structure, including two second insulated core wires, a second shielding layer wrapping around these two second insulated core wires, and a second ground wire. The second insulated core wire consists of a second inner conductor and a second insulating layer wrapped around it. The differential structure has strong anti-common-mode interference capability, and the ground wire can effectively drain current, meeting the high-speed transmission requirements of large-capacity data (such as game data and user interaction data) of VR devices.

[0009] Furthermore, the second inner conductor is silver-plated copper wire, the second insulating layer is fluorinated ethylene propylene copolymer, and the second shielding layer is an aluminum foil shielding layer. Silver plating of the copper wire reduces the skin effect resistance of high-frequency signals. Fluorinated ethylene propylene copolymer (FEP) is a high-frequency insulating material with a stable dielectric constant and extremely low loss. Partial shielding with aluminum foil prevents data interference, ensuring the high bandwidth and stable impedance matching required by high-speed data protocols such as USB.

[0010] Furthermore, the control signal transmission core adopts a differential wire structure, including two third insulated core wires, a third shielding layer surrounding these two third insulated core wires, and a third ground wire. The third insulated core wire consists of a third inner conductor and a third insulating layer surrounding it. The differential structure has strong anti-common-mode interference capability, and the ground wire can effectively drain current, responsible for transmitting control commands of the VR device (handle operation commands, device posture adjustment commands, etc.).

[0011] Furthermore, the third inner conductor is oxygen-free copper wire, the third insulating layer is polypropylene, and the third shielding layer is an aluminum foil shielding layer. By employing cost-effective polypropylene material while ensuring reliable conductivity (oxygen-free copper) and effective shielding, the system satisfies the characteristics of control signal transmission—high reliability requirements but not extreme absolute speed requirements—achieving a balance between performance and cost.

[0012] Furthermore, the power transmission core includes a power transmission conductor and a power transmission insulation layer covering the power transmission conductor. The cross-sectional area of ​​the power transmission conductor is larger than that of any signal transmission core. Using a large-section conductor as the power transmission core allows it to carry a larger current, reduces resistance and power loss, avoids voltage drops due to line loss, and provides a stable and sufficient power supply for the VR device's headset and sensors.

[0013] Furthermore, the functional core assembly also includes at least one auxiliary functional core for transmitting low-speed signals or sensor data. The auxiliary functional core includes a fourth inner conductor and a fourth insulating layer covering the fourth inner conductor. The auxiliary functional cores are distributed and filled in the gaps of the functional core assembly. This solution fully utilizes the internal space of the wire, increasing functional expandability without increasing the wire diameter. This allows the wire to adapt to the sensor functions of more VR devices, improving product compatibility and applicability.

[0014] Furthermore, the outer shielding layer is a composite shielding structure made of a metal braided mesh and a metal foil layer. This composite shielding structure combines the advantages of the metal braided layer's resistance to low-frequency interference and the metal foil layer's resistance to high-frequency interference, achieving effective electromagnetic shielding across the entire frequency band and significantly improving signal transmission stability and resistance to external interference. The metal braided mesh is a tin-plated copper braided mesh with a braiding density of not less than 90%; the metal foil layer is aluminum foil. The high braiding density (≥90%) ensures the coverage and continuity of the shielding layer, giving it good flexibility and durability, making it less prone to breakage when the wire is bent, and maintaining the integrity of the shielding.

[0015] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: The VR cable structure designed in this utility model minimizes signal crosstalk and ensures independent and stable transmission of various types of signals by partitioning and independently shielding different functional cores (video, control, data, power, etc.). The synergistic effect of the outer protective sleeve and the outer shielding layer enhances the cable's resistance to bending and pulling, extending its service life. The compact structure improves the cable's space utilization and overall performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-section of the wire structure of this utility model; Figure 2 This is a schematic diagram of the cross-section of the functional wire core assembly of this utility model; Figure 3 This is a schematic diagram of the cross-section of the video signal transmission line core of this utility model; Figure 4 This is a schematic diagram of the cross-section of the high-speed data transmission line core of this utility model; Figure 5 This is a schematic diagram of the cross-section of the control signal transmission line core of this utility model; Figure 6 This is a schematic diagram of the cross-section of the auxiliary functional wire core of this utility model; Figure 7 This is a schematic diagram of the cross-section of the power transmission conductor of this utility model; In the above attached figures, 1. Outer protective sleeve; 2. Outer shielding layer; 3. Functional core assembly; A. Video signal transmission core; A1. First insulated core wire; A11. First inner conductor; A12. First insulation layer; A2. First shielding layer; A3. First ground wire; B, High-speed data transmission core; B1, Second insulated core; B11, Second inner conductor; B12, Second insulation layer; B2, Second shielding layer; B3, Second ground wire; C, control signal transmission core; C1, third insulated core; C11, third inner conductor; C12, third insulation layer; C2, third shielding layer; C3, third ground wire; D, auxiliary functional conductor; D1, fourth inner conductor; D2, fourth insulation layer; E, power transmission core; E1, power transmission conductor; E2, power transmission insulation layer. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0018] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Example: See appendix Figure 1 As shown, this embodiment provides a VR cable structure, including an outer protective sleeve 1, an outer shielding layer 2, and a functional core assembly 3 arranged sequentially from the outside to the inside. The outer protective sleeve 1 has a thickness of 0.4mm to 0.6mm, which can be 0.4mm, 0.5mm, or 0.6mm. The outer protective sleeve 1 is formed by extrusion process, with the extrusion temperature controlled at 150 to 200℃ and the extrusion speed at 50m / min to ensure that the protective sleeve has a uniform thickness and a smooth surface.

[0023] The outer shielding layer 2 is a composite shielding structure made of a metal braided mesh and a metal foil layer. This composite shielding structure combines the advantages of the metal braided layer in resisting low-frequency interference and the metal foil layer in resisting high-frequency interference, achieving effective electromagnetic shielding across the entire frequency band and significantly improving signal transmission stability and resistance to external interference. The metal braided mesh is a tin-plated copper braided mesh with a diameter of 0.1 mm and a braiding density of not less than 90%. The metal foil layer is aluminum foil with a thickness of 25 μm. The high braiding density (≥90%) ensures the coverage and continuity of the shielding layer, giving it good flexibility and durability, making it less prone to breakage when the wire is bent, and maintaining the integrity of the shielding.

[0024] See appendix Figure 2 As shown, the functional core group 3 includes at least one video signal transmission core A, at least one high-speed data transmission core B, at least one control signal transmission core C, and at least one power transmission core E. The video signal transmission cores A are arranged in a ring array in the upper part of the cable. The ring array arrangement fixes the relative positions of the multiple video cores, ensuring consistent impedance characteristics and facilitating signal synchronization. This centralized arrangement in the upper area, leaving space for the layout of other functional cores, is key to achieving a zoned layout.

[0025] High-speed data transmission core B is located in the lower part of the wire. The power transmission conductor E is positioned in the area with the maximum spacing from other signal transmission conductors. Differential lines transmitting high-definition video and high-speed data (such as group A and group B conductors) are highly sensitive to external interference. By maximizing the physical distance, parasitic capacitance and mutual inductance between the power and signal lines are significantly reduced, thereby fundamentally weakening the path of energy coupling.

[0026] See appendix Figure 3 As shown, the video signal transmission line core A adopts a differential line structure, including two first insulated core wires A1, a first shielding layer A2 wrapping these two first insulated core wires A1, and a first ground wire A3. The differential structure has strong anti-common-mode interference capability; the ground wire can effectively drain current and is used to transmit high-definition VR video signals. The first insulated core wire A1 consists of a first inner conductor A11 and a first insulation layer A12 wrapped around it; the first inner conductor A11 is stranded oxygen-free copper wire, 7 / 0.08mm stranded copper wire, with a pitch of 3mm; the first insulation layer A12 is foamed polyethylene (PE), and the first shielding layer A2 is an aluminum foil shielding layer. The first shielding layer A2 is wrapped with aluminum foil tape, formed sequentially by a wrapping machine, controlling the thickness and pitch stability of each layer. The stranded oxygen-free copper wire has good conductivity and flexibility, and the foamed polyethylene insulation reduces the dielectric constant, reducing signal attenuation; the use of aluminum foil for partial shielding provides the first line of defense against interference, ensuring low-latency and high-fidelity transmission of high-definition video signals.

[0027] See appendix Figure 4As shown, the high-speed data transmission line core B adopts a differential line structure, including two second insulated core wires B1, a second shielding layer B2 wrapping these two second insulated core wires B1, and a second ground wire B3. The second insulated core wire B1 consists of a second inner conductor B11 and a second insulating layer B12 wrapped around it. The differential structure has strong anti-common-mode interference capability, and the ground wire can effectively drain current, meeting the high-speed transmission requirements of large-capacity data (such as game data and user interaction data) of VR devices. The second inner conductor B11 is silver-plated copper wire, and the second insulating layer B12 is made of fluorinated ethylene propylene copolymer (FEP), a low dielectric constant material, prepared by a precision extrusion process. The second shielding layer B2 is an aluminum foil shielding layer, uniformly wrapped with aluminum foil to ensure impedance matching of the corresponding value, such as 85Ω. Silver plating of copper wire can reduce the skin effect resistance of high-frequency signals. Fluorinated ethylene propylene copolymer (FEP) is a high-frequency insulating material with a stable dielectric constant and extremely low loss. The use of aluminum foil for partial shielding can prevent data from being interfered with, ensuring the high bandwidth and stable impedance matching required by high-speed data protocols such as USB.

[0028] See appendix Figure 5 As shown, the control signal transmission core C adopts a differential wire structure, including two third insulated core wires C1, a third shielding layer C2 wrapping these two third insulated core wires C1, and a third ground wire C3. The third insulated core wire C1 consists of a third inner conductor C11 and a third insulating layer C12 wrapped around it. The differential structure has strong anti-common-mode interference capability, and the ground wire can effectively drain current, responsible for transmitting the control commands of the VR device (handle operation commands, device posture adjustment commands, etc.). The third inner conductor C11 is oxygen-free copper wire, 7 / 0.08mm stranded copper wire, with a pitch of 3mm; the third insulating layer C12 is polypropylene (PP); the third shielding layer C2 is an aluminum foil shielding layer, which is wrapped with aluminum foil tape and formed sequentially by a wrapping machine to control the thickness and pitch stability of each layer. Under the premise of ensuring reliable conductivity (oxygen-free copper) and effective shielding, the cost-effective polypropylene material is used to meet the characteristics of high reliability requirements but not extreme absolute speed requirements of control signal transmission, achieving a balance between performance and cost.

[0029] See appendix Figure 7 As shown, the power transmission core E includes a power transmission conductor E1 and a power transmission insulation layer E2 covering the power transmission conductor E1. The cross-sectional area of ​​the power transmission conductor E1 is larger than the conductor cross-sectional area of ​​any signal transmission core. Using a large-section conductor as the power transmission core E allows it to carry a larger current, reduces resistance and power loss, avoids voltage drops due to line loss, and provides a stable and sufficient power supply for the VR device's headset and sensors.

[0030] The power transmission conductor E1 is made of oxygen-free copper wire, 7 / 0.254mm stranded copper wire, with a pitch of 15mm. The power transmission insulation layer E2 is made of high-temperature resistant material FEP (fluorinated ethylene propylene copolymer), which is extruded by a high-precision extruder.

[0031] See appendix Figure 2 As shown, in some other embodiments, the power transmission core E includes a first power transmission core E and a second power transmission core E with different diameters.

[0032] See appendix Figure 2 and attached Figure 6 As shown, the functional core assembly 3 also includes at least one auxiliary functional core D for transmitting low-speed signals or sensor data. The auxiliary functional core D includes a fourth inner conductor D1 and a fourth insulation layer D2 covering the fourth inner conductor D1. The auxiliary functional cores D are distributed and filled in the gaps of the functional core assembly 3. The fourth inner conductor D1 is made of oxygen-free copper wire, 7 / 0.08mm stranded copper wire with a 3mm pitch. The fourth insulation layer D2 is made of PP (polypropylene) material, extruded using a high-precision extruder. By fully utilizing the internal space of the wire, functional expandability is increased without increasing the wire diameter, enabling the wire to adapt to the sensor functions of more VR devices, thus improving the product's compatibility and applicability.

[0033] Overall cabling: Arrange the functional core groups 3 in a layout, use cabling equipment to cable, control the cabling pitch to 80mm, then wrap the outer shielding layer 2 on the outside and extrude the outer protective sleeve 1 to complete the wire preparation.

[0034] The VR cable structure designed in this utility model minimizes signal crosstalk and ensures independent and stable transmission of various types of signals through partitioned layout and independent shielding design of different functional cores (video, control, data, power, etc.); the synergistic effect of the outer protective sleeve 1 and the outer shielding layer 2 enhances the cable's resistance to bending and pulling, and extends its service life; the compact structure improves the space utilization and overall performance of the cable.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A VR cable structure, comprising an outer protective sleeve (1), an outer shielding layer (2), and a functional core assembly (3) arranged sequentially from the outside to the inside, characterized in that: The functional core group (3) includes at least one video signal transmission core (A), at least one high-speed data transmission core (B), at least one control signal transmission core (C), and at least one power transmission core (E). The video signal transmission cores (A) are arranged in a ring array in the upper region of the cable; The high-speed data transmission core (B) is located in the lower region of the wire; The power transmission core (E) is arranged in the area with the maximum spacing from other signal transmission cores; The video signal transmission line core (A) adopts a differential line structure, including two first insulated core wires (A1), a first shielding layer (A2) wrapping the two first insulated core wires (A1), and a first ground wire (A3). The first insulated core wire (A1) consists of a first inner conductor (A11) and a first insulating layer (A12) wrapped around it; the first inner conductor (A11) is stranded oxygen-free copper wire, the first insulating layer (A12) is foamed polyethylene, and the first shielding layer (A2) is an aluminum foil shielding layer. The high-speed data transmission line core (B) adopts a differential line structure, including two second insulated core wires (B1), a second shielding layer (B2) wrapping the two second insulated core wires (B1), and a second ground wire (B3). The second insulated core wire (B1) is composed of a second inner conductor (B11) and a second insulating layer (B12) wrapped around it. The second inner conductor (B11) is silver-plated copper wire, the second insulating layer (B12) is fluorinated ethylene propylene copolymer, and the second shielding layer (B2) is aluminum foil shielding layer; The control signal transmission core (C) adopts a differential wire structure, including two third insulated core wires (C1), a third shielding layer (C2) wrapping the two third insulated core wires (C1), and a third ground wire (C3). The third insulated core wire (C1) is composed of a third inner conductor (C11) and a third insulation layer (C12) wrapped around it. The third inner conductor (C11) is oxygen-free copper wire, the third insulating layer (C12) is polypropylene, and the third shielding layer (C2) is aluminum foil shielding layer. The power transmission core (E) includes a power transmission conductor (E1) and a power transmission insulation layer (E2) covering the power transmission conductor (E1), wherein the cross-sectional area of ​​the power transmission conductor (E1) is larger than the conductor cross-sectional area of ​​any signal transmission core. The functional core group (3) further includes at least one auxiliary functional core (D) for transmitting low-speed signals or sensor data. The auxiliary functional core (D) includes a fourth inner conductor (D1) and a fourth insulating layer (D2) covering the fourth inner conductor (D1). The auxiliary functional core (D) is distributed and filled in the gaps of the functional core group (3). The outer shielding layer (2) is a composite shielding structure composed of a metal braided mesh and a metal foil layer; the metal braided mesh is a tin-plated copper braided mesh with a braiding density of not less than 90%; the metal foil layer is aluminum foil.

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