High-speed server FFC (flexible flat cable) for usb4.0

Abstract

The utility model discloses a high-speed server FFC (flexible flat cable) for usb4.0, which comprises a cable and plugs, and the plugs are fixedly mounted at the left end and the right end of the cable; the cable is sequentially provided with an upper leather film layer, a conductor and a lower leather film layer from top to bottom, and the thickness of the cable is 0.40-0.45 mm; the number of the conductors is 20-80 PiN, and the center-to-center distance between every two adjacent conductors is 0.3-1.0 mm. According to the scheme, the thickness of the cable is limited to be 0.40-0.45 mm, the ultra-thin cable can be flexibly wired in a limited space, the overall thickness and weight of the electronic equipment are hardly increased, the utilization rate of the internal space of the electronic equipment is greatly improved, the problem that the ultra-thin thickness is difficult to maintain in the prior art is solved, and meanwhile the excellent signal transmission performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a high-speed server FFC cable for USB 4.0. Background Art

[0002] In today's era of rapid technological advancement, portable electronic devices such as laptops and tablets are evolving towards thinner, lighter, and higher-performance designs. To meet users' dual demands for portability and processing power, the components within these ultra-thin devices are becoming increasingly integrated, placing increasingly stringent demands on the cables connecting these components. Especially in terms of data transmission, the rise of Thunderbolt 4 (TBT4) technology, with its versatile features such as high-speed data transmission, video transmission, power supply, and peripheral connectivity, has made the TBT4 interface a standard feature in high-end electronic devices.

[0003] However, existing cable designs often struggle to maintain an ultra-thin profile while also delivering superior signal transmission performance. On the one hand, the limited cable thickness directly impacts the layout and material selection of its internal conductors, which in turn affects signal transmission quality. On the other hand, to support TBT4's high-speed data transmission capabilities, the cable requires high-quality conductor materials, all of which increase the cable's thickness and weight. Utility Model Content

[0004] In response to the above-mentioned defects, the present invention proposes a high-speed server FFC cable for USB 4.0. This solution also limits the thickness of the cable to 0.40-0.45mm. The ultra-thin cable can be flexibly wired in a limited space, and hardly increases the overall thickness and weight of the electronic device, greatly improving the utilization rate of the internal space of the electronic device, and solving the traditional problem of maintaining ultra-thin thickness while also having excellent signal transmission performance.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A high-speed server FFC cable for USB 4.0, comprising a cable and a plug, wherein the plugs are fixedly mounted on both the left and right ends of the cable;

[0007] The cable is provided with an upper epithelial film layer, a conductor and a lower epithelial film layer in sequence from top to bottom. The thickness of the cable is 0.40-0.45 mm; the number of the conductors is 20-80 PiN, and the center distance between two adjacent conductors is 0.3-1.0 mm.

[0008] The upper epithelial layer includes an upper shielding layer and an upper insulating layer, wherein the upper insulating layer is located between the upper shielding layer and the conductor;

[0009] The lower membrane layer includes a lower shielding layer and a lower insulating layer, and the lower insulating layer is located between the lower shielding layer and the conductor.

[0010] Grounding layers are provided at both left and right ends of the cable, the grounding layer is provided at the top of the upper epithelial membrane layer, and the grounding layer is also provided at the bottom of the lower epithelial membrane layer.

[0011] The installation directions of the pins in the two plugs are opposite to each other.

[0012] The upper insulating layer and the lower insulating layer are made of polyolefin materials.

[0013] The thickness of the conductor is 0.04-0.06 mm;

[0014] The thickness of the upper insulating layer and the lower insulating layer are both 0.09-0.11 mm;

[0015] The thickness of the upper shielding layer and the lower shielding layer are both 0.09-0.11 mm.

[0016] The outer edge of the lower epithelial membrane layer is 0.5 mm longer than the outer edge of the upper epithelial membrane layer.

[0017] The technical solution of the utility model may have the following beneficial effects:

[0018] 1. This solution also limits the cable thickness to 0.40-0.45mm. The ultra-thin cable can be flexibly routed in a limited space, hardly increasing the overall thickness and weight of the electronic device, greatly improving the utilization rate of the internal space of the electronic device, and solving the traditional problem of maintaining ultra-thin thickness while also having excellent signal transmission performance.

[0019] 2. The number of conductors is 20-80 PiN, which can greatly improve the data transmission capacity of the cable and meet the requirements of USB 4.0 high-speed transmission. In addition, the center spacing between two adjacent conductors is 0.5mm, which makes the coupling between multiple conductors closer, reduces signal attenuation and distortion, and helps reduce crosstalk and interference between signals, thereby ensuring the stability and accuracy of data during high-speed transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a high-speed server FFC cable according to one embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of a high-speed server FFC cable according to one embodiment of the present invention;

[0022] Among them, 1. Cable; 2. Plug; 3. Upper epithelial layer; 31. Upper insulation layer; 32. Upper shielding layer; 4. Conductor; 5. Lower epithelial layer; 51. Lower insulation layer; 52. Lower shielding layer; 6. Grounding layer. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0026] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installation," "splicing," and "connection" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The following combination Figures 1 to 2 , describing a high-speed server FFC cable for USB 4.0 according to an embodiment of the present invention.

[0028] A high-speed server FFC cable for USB 4.0, comprising a cable 1 and a plug 2, wherein the plugs 2 are fixedly mounted on both the left and right ends of the cable 1;

[0029] The cable 1 is provided with an upper epithelial layer 3, a conductor 4 and a lower epithelial layer 5 from top to bottom. The thickness of the cable 1 is 0.40-0.45 mm. The number of the conductors 4 is 20-80 PiN, and the center distance between two adjacent conductors 4 is 0.3-1.0 mm.

[0030] The two plugs 2 are fixedly installed on the left and right ends of the cable 1, respectively, which can facilitate the rapid connection and disconnection of the high-speed server FFC cable of this solution with the server or other electronic devices, thereby improving the convenience of use.

[0031] The cable 1 is provided with an upper epithelial layer 3 and a lower epithelial layer 5 covering the top and bottom of the conductor 4 respectively, which not only protects the conductor 4 from the influence of the external environment, but also ensures the overall strength and durability of the cable 1.

[0032] The number of conductors 4 is 20-80 PiN, which can greatly improve the data transmission capacity of cable 1 and meet the requirements of USB 4.0 high-speed transmission. In addition, the center-to-center spacing between two adjacent conductors 4 is 0.5mm, which makes the coupling between multiple conductors 4 tighter, reduces signal attenuation and distortion, and helps reduce crosstalk and interference between signals, thereby ensuring data stability and accuracy during high-speed transmission.

[0033] In addition, this solution also limits the thickness of cable 1 to 0.40-0.45mm. The ultra-thin cable 1 can be flexibly wired in a limited space, and hardly increases the overall thickness and weight of the electronic device, greatly improving the utilization rate of the internal space of the electronic device, and solving the traditional problem of maintaining ultra-thin thickness while also having excellent signal transmission performance.

[0034] The upper epithelial layer includes an upper shielding layer 32 and an upper insulating layer 31 , wherein the upper insulating layer 31 is located between the upper shielding layer 32 and the conductor 4 ;

[0035] The lower membrane layer 5 includes a lower shielding layer 52 and a lower insulating layer 51 . The lower insulating layer 51 is located between the lower shielding layer 52 and the conductor 4 .

[0036] The upper insulating layer 31 and the lower insulating layer 51 are separately covered on the upper and lower sides of the conductor 4, which not only protects the conductor 4 from physical damage and chemical corrosion, extending the service life of the cable 1, but also provides electrical isolation and enhances the overall durability of the cable 1.

[0037] The upper shielding layer 32 and the lower shielding layer 52 are respectively located at the outermost layer of the cable 1. The double shielding layer design reduces the attenuation and distortion of the signal during transmission, increases the signal shielding and interference functions, and ensures that the signal can maintain high integrity and accuracy, thereby improving the signal transmission quality.

[0038] A grounding layer 6 is provided at both left and right ends of the cable 1 , the grounding layer 6 is provided at the top of the upper epithelial layer 3 , and the grounding layer 6 is also provided at the bottom of the lower epithelial layer 5 .

[0039] It is worth noting that the ground layer 6 is made of metal shielding materials such as aluminum foil, copper foil or conductive cloth. These materials have good conductivity and shielding properties, can effectively absorb and disperse electromagnetic interference, and protect the integrity and stability of signal transmission.

[0040] Moreover, grounding layers 6 are configured at both the left and right ends of the cable 1. This design ensures that the cable 1 can more effectively conduct the charges of the upper shielding layer 32 and the lower shielding layer 52 into the ground during the connection process, which can further enhance the shielding capability of the cable 1 and ensure the clarity and accuracy of signal transmission.

[0041] The installation directions of the pins in the two plugs 2 are opposite to each other.

[0042] In compact electronic equipment environments such as servers, the design of the pins in the two plugs 2 being installed in opposite directions allows the cable 1 of this solution to more flexibly adapt to different layouts and directions when connected, reducing the difficulty of plugging and unplugging due to space limitations.

[0043] Moreover, during the plugging and unplugging process, since the installation directions of the pins in the two plugs 2 are opposite, the user can more intuitively identify the correct installation direction of the plug 2, thereby simplifying the operation process and reducing the risk of misplugging.

[0044] When the cable is subjected to external forces, such as pulling or vibration, the design of the two plugs 2 with the pins installed in opposite directions helps to disperse the stress and reduce the concentration of stress in a single direction, thereby improving the stability and reliability of the connection.

[0045] The upper insulating layer 31 and the lower insulating layer 51 are made of polyolefin materials.

[0046] Polyolefin materials offer excellent electrical insulation properties, effectively isolating current and preventing short circuits and leakage between conductors 4, ensuring secure signal transmission. Furthermore, polyolefin materials possess low dielectric constants and low dissipation factors, resulting in low losses at high frequencies and high speeds, further protecting the integrity and stability of signal transmission.

[0047] The thickness of the conductor 4 is 0.04-0.06 mm;

[0048] The thickness of the upper insulating layer 31 and the lower insulating layer 51 are both 0.09-0.11 mm;

[0049] The thickness of the upper shielding layer 32 and the lower shielding layer 52 are both 0.09-0.11 mm.

[0050] Conductor 4 is the core part of signal transmission, and its thickness is designed to be 0.04-0.06mm, ensuring that conductor 4 can withstand the current requirements of high-speed signal transmission while maintaining the flexibility of cable 1, facilitating wiring and connection inside complex electronic equipment.

[0051] The upper insulating layer 31, the lower insulating layer 51, the upper shielding layer 32 and the lower shielding layer 52 together constitute a powerful electromagnetic shielding system. This system can not only effectively block the intrusion of external electromagnetic radiation, reduce the impact of electromagnetic interference on signal transmission, ensure the integrity and reliability of signal transmission, but also avoid increasing the overall hardness and volume of the cable 1 due to excessive thickness.

[0052] The outer edge of the lower epithelial membrane layer 5 is 0.5 mm longer than the outer edge of the upper epithelial membrane layer 3 .

[0053] In dynamic environments, such as frequent movement or vibration within a server rack, the cable 1 is subjected to continuous stress. The longer edge of the lower membrane layer 5 can more effectively distribute these stresses, reducing the pressure concentrated on a single point, thereby reducing the risk of damage to the cable 1.

[0054] The longer edge of the lower membrane layer 5 provides an additional protective barrier for the conductors 4 of the cable 1, preventing direct damage to these sensitive components during bending, twisting, pulling or installation, thereby improving the durability and service life of the cable 1.

[0055] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A high-speed server FFC cable for USB 4.0, characterized in that: It includes a cable and a plug, with the plugs fixedly installed on both the left and right ends of the cable; The cable (1) is provided with an upper epithelium layer, a conductor and a lower epithelium layer in order from top to bottom, and the thickness of the cable is 0.40-0.45 mm; the number of the conductors is 20-80 PiN, and the center distance between two adjacent conductors is 0.3-1.0 mm.

2. A high-speed server FFC cable for USB 4.0 according to claim 1, characterized in that: The upper epithelial layer includes an upper shielding layer and an upper insulating layer, wherein the upper insulating layer is located between the upper shielding layer and the conductor; The lower membrane layer includes a lower shielding layer and a lower insulating layer, and the lower insulating layer is located between the lower shielding layer and the conductor.

3. A high-speed server FFC cable for USB 4.0 according to claim 1, characterized in that: Grounding layers are provided at both left and right ends of the cable, the grounding layer is provided at the top of the upper epithelial membrane layer, and the grounding layer is also provided at the bottom of the lower epithelial membrane layer.

4. A high-speed server FFC cable for USB 4.0 according to claim 1, characterized in that: The installation directions of the pins in the two plugs are opposite to each other.

5. A high-speed server FFC cable for USB 4.0 according to claim 2, characterized in that: The upper insulating layer and the lower insulating layer are made of polyolefin materials.

6. A high-speed server FFC cable for USB 4.0 according to claim 2, characterized in that: The thickness of the conductor is 0.04-0.06 mm; The thickness of the upper insulating layer and the lower insulating layer are both 0.09-0.11 mm; The thickness of the upper shielding layer and the lower shielding layer are both 0.09-0.11 mm.

7. A high-speed server FFC cable for USB 4.0 according to claim 1, characterized in that: The outer edge of the lower epithelial membrane layer is 0.5 mm longer than the outer edge of the upper epithelial membrane layer.

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