Flat cable structure

Abstract

The utility model discloses a flat cable structure which comprises a core body structure and a protective layer. The multiple core body structures are arranged in parallel, and a certain gap is formed between every two adjacent core body structures; the protection layers wrap all the core body structures, and the protection layers between the adjacent core body structures are pressed into a whole, so that the relative fixation of the plurality of core body structures is realized; wherein each core structure comprises a minimum function unit located in the middle, a shielding layer wrapping the minimum function unit and a lubricating layer wrapping the shielding layer. The flat cable structure provided by the utility model solves the problem of mechanical interference of a non-rigid variable body of a wire rod of a high-precision movement mechanism, and also solves the problems of electrical application, dust-free requirements, production cycle, cost input and the like.

Description

Technical Field

[0001] This utility model relates to a semiconductor chip device and the field of precision motion, and in particular to a flat ribbon cable structure. Background Technology

[0002] In core semiconductor chip equipment or other high-precision motion fields, whether it is non-contact optical or ion beam processing or contact coating, embedding, welding, packaging, probe testing, etc., the foundation is the need for high-precision nanoscale motion mechanisms. To manufacture precision nanoscale motion mechanisms, the mechanical repeatability problem must first be solved. The repeatability of existing nanoscale mechanisms is mainly affected by the mechanical disturbance of non-rigid variable bodies such as motion cables and air tubes.

[0003] Because the wires (cables and tubing) need to be folded in the mechanism to be inserted into the tank chain, the bending resistance during bending, according to the principle of vector decomposition, has vector components in both the vertical direction (upward force) and the horizontal direction (running resistance). Furthermore, since traditional round cables are relatively thick and consist of multiple smallest units wound together internally, their internal material stress is slowly released after bending. The larger the wire diameter, the greater and slower the stress release, resulting in fluctuations in upward force and running resistance. Regardless of the materials or guide rails used in the motion mechanism, the materials and guide rails have a certain amount of deformation, and there are assembly gaps and assembly stresses in the components. This leads to uncertain changes in the pitch and yaw angles of the motion mechanism. According to ISO230-2 and GB-17421 standards, the repeatability of the motion mechanism increases, and the order of magnitude is insufficient to meet the requirements for nanometer-level repeatability.

[0004] Therefore, driven by the demands of high-end semiconductor chip manufacturing, it is urgent to address the issues of reducing the resistance and resistance fluctuations of the motion wires in motion mechanisms, while also ensuring electrical performance, long-term operational stability, and service life.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a flat cable structure that solves the problem of mechanical interference caused by non-rigid variable body wires in high-precision motion mechanisms. It also addresses issues related to electrical applications, cleanroom requirements, production cycle, and cost.

[0007] To achieve the above objectives, this utility model provides a flat ribbon cable structure, including a core structure and a protective layer. Multiple core structures are arranged side-by-side, with a certain gap between adjacent core structures. The protective layer covers all core structures from both sides or around their perimeters. The protective layers between adjacent core structures are formed into a single unit by pressing, thereby achieving relative fixation of the multiple core structures. Each core structure includes a minimum functional unit located in the center and a lubricating layer surrounding the minimum functional unit.

[0008] In one or more embodiments, the gap between adjacent core structures ranges from 1 mm to 5 mm.

[0009] In one or more embodiments, the minimum functional unit is selected from single-core power wire, dual-core signal twisted pair, single air tube or single optical fiber, temperature wire or resistance wire or others.

[0010] In one or more embodiments, the minimum functional unit includes a conductor, an insulator surrounding the conductor, and a shielding layer surrounding the insulator.

[0011] In one or more embodiments, the conductor is made of an alloy material and the insulator is made of Teflon.

[0012] In one or more embodiments, the shielding layer is formed on the periphery of the insulator by a spiral winding process and / or a braiding process.

[0013] In one or more embodiments, the lubricating layer is wound around the periphery of the smallest functional unit, and the material of the lubricating layer includes an e-PTFE film, graphene, or Teflon.

[0014] In one or more embodiments, the protective layer is made of one or more composite structures selected from e-PTFE, Teflon, and polyurethane.

[0015] In one or more embodiments, the protective layer is flexible, tough, dust-free, and self-lubricating.

[0016] In one or more embodiments, the flat cabling structure includes 6-48 core structures arranged in a row in parallel.

[0017] In one or more embodiments, all core structures within the flat cabling structure include the same minimum functional unit; or, multiple core structures within the flat cabling structure include multiple minimum functional units.

[0018] Compared with the prior art, the flat cable structure of this utility model uses the smallest functional unit, the diameter of each of which is much smaller than that of traditional round cables. After the smallest functional units are laid flat, they are protected by a protective layer of sheet material pressed on top and bottom, which is very strong, soft, and resistant to pulling, and has very weak bending resistance, making it suitable for precision nanoscale motion mechanisms.

[0019] According to the flat cable structure of this invention, the movement is very smooth, directly replacing the traditional articulated tank chain, eliminating the periodic vibration caused by the contact and stress between the joints during the bending process of the tank chain. Furthermore, due to the homogeneous flat symmetrical structure or multi-type ordered symmetrical structure of the core structure, it does not wobble left and right during operation like traditional cables due to the different resistance of different wire diameters, effectively reducing Abbe error.

[0020] According to the flat ribbon cable structure of this utility model, since there is a high-performance e-PTFE material as a lubricating layer between the minimum functional unit and the protective layer, and the protective layer is tough and soft, and is made of two flat pieces pressed together, and the inner layer of the protective layer itself is also self-lubricating, the minimum functional unit can actually move freely during the movement of the cable chain. In this way, the static friction between the minimum functional unit and the protective layer is very small during operation, and the cable stress can be released as quickly as possible. The bending resistance of the flat ribbon cable structure is very small, and its application in nanoscale motion mechanisms will not affect its accuracy. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the flat ribbon cable structure according to the first embodiment of the present utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the flat cabling structure according to the first embodiment of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of a flat ribbon cable structure according to the second embodiment of the present utility model.

[0024] Figure 4 This is a cross-sectional schematic diagram of the flat cabling structure according to the second embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional schematic diagram of a flat ribbon cable structure according to the third embodiment of this utility model.

[0026] Figure 6 This is a cross-sectional schematic diagram of the flat cabling structure according to the third embodiment of this utility model. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0028] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0029] Existing cable structures used in motion mechanisms include foamed PVC multi-core round cables, ordinary PVC multi-core round cables, PUR multi-core round cables, and plastic Teflon round cables. These structures involve threading the cables into traditional tank chains, gluing them together side-by-side, threading several cables in a group into a flat, soft sheath (industry-standard soft sheaths include POD or silicone tubing), or directly injection molding multiple cores into a large, flat cable sheet (rectangular or gourd-shaped cross-section). However, all of these cables have their own drawbacks and are unsuitable for nanoscale motion mechanisms and related high-precision semiconductor chip core equipment. For example:

[0030] Multi-core round cable: Because it is a multi-core wound cable, it has a large diameter, high bending resistance, a large range of bending resistance release, and an uncertain release time. This results in high resistance and uncertain resistance fluctuation in the motion mechanism. Furthermore, the resistance is uneven at different positions, making it difficult to achieve nanometer-level repeatability and high rigidity of the servo. It also needs to be used in conjunction with a tank chain.

[0031] Circular adhesive-bonded ribbon cables exhibit significant bending resistance. During bending, the tension between the cable's protective layer and the adhesive must be overcome. Furthermore, due to the adhesive bonding, the bent portion of the cable is flattened during bending, creating additional tensile resistance on the outer layer and compressive resistance on the inner layer, making the release of bending resistance more unpredictable. Based on existing domestic case studies, the actual repeatability of circular adhesive-bonded ribbon cables is difficult to maintain at the micron level, and the adhesive is prone to cracking and generating volatilization or dust. Nanoscale applications generally require a cleanliness level of 100 or higher.

[0032] Flat injection-molded square cables: In addition to the problems of round adhesive-bonded cables, this type of thick injection-molded protective layer has the greatest static friction between the conductor, insulation layer and cable protection layer during the bending process of the cable. After the bending and recovery, the internal multi-strand conductors are prone to stress concentration. After long-term high-frequency operation, conductor breakage is likely to occur, which usually manifests as large current fluctuations or easy error in electrical signals.

[0033] Round cables with soft sheaths: Due to factors such as wire diameter and internal static friction, it is difficult to reduce the bending radius to the allowable height of the nanometer-level platform. At present, such products are generally only used in the micrometer-level field.

[0034] Based on this, this utility model provides a flat cable structure to solve the mechanical interference of non-rigid variable bodies on the motion of motion cables (drag chains) in high-precision nanoscale motion mechanisms. This includes solving the periodic vibration of tank chain joints, reducing resistance (upward force, irregular disturbances, running resistance, and resistance fluctuations), addressing friction between cables, preventing dust pollution from long-term cable bending and friction, mitigating interference from the electric field on signal lines when the power line current changes, reducing the transmission density of power, communication, and water / steam pipes in motion drag chains, improving service life, and ensuring interchangeability between traditional round cables of different specifications.

[0035] refer to Figure 1 and Figure 2 As shown, the flat cabling structure according to the first embodiment of this utility model includes a core structure 10 and a protective layer 20. Each core structure 10 includes a minimum functional unit 11 located in the middle and a lubricating layer 12 surrounding the minimum functional unit 11. Multiple core structures 10 are arranged side by side, with a certain gap between adjacent core structures 10. Two sheet-like protective layers 20 are respectively provided to cover all core structures 10 from both sides. The two protective layers 20 between adjacent core structures 10 are formed into one piece by pressing to achieve relative fixation of multiple core structures 10.

[0036] The minimum functional unit 11 can be selected from a single-core power wire, a two-core twisted-pair signal cable, a single air tube, or a single optical fiber; it can also be selected from a temperature wire, a resistance wire, or others. The minimum functional unit 11 may include a conductor, an insulator formed around the conductor, and a shielding layer surrounding the insulator. For example, in one specific embodiment, refer to... Figure 4 As shown, when the minimum functional unit 11 is selected as a single-core power line, the minimum functional unit 11 includes a conductor 111, an insulator 112 surrounding the conductor 111, and a shielding layer 113 surrounding the insulator 112. The conductor 111 is made of a special alloy conductor, which has ultra-flexible and bend-resistant characteristics, and can be used in normal pressure or vacuum environments, with a maximum allowable overcurrent per unit area. The single-core power line conductor 111 has power current versions with maximum currents of 8A and 20A. The insulator 112 is made of Teflon material and is die-cast onto the conductor 111 through a special process, possessing high temperature resistance and insulation characteristics. The shielding layer 113 is formed around the insulator 112 through a spiral winding process and / or braiding process. The winding method of the shielding layer 113 adopts advanced shielding winding technology, such as high-density spiral winding process and high-density braiding process, to shield the conductor 111, abandoning traditional non-woven fabrics and aluminum foil, thereby minimizing bending resistance. In this specific embodiment, refer to Figure 2As shown, when the minimum functional unit 11 is selected as a two-core signal twisted pair, the minimum functional unit 11 includes a pair of twisted pairs and a shielding layer 103 wrapped around the pair of twisted pairs. Each twisted pair includes a conductor 101 and an insulator 102 wrapped around the conductor. The shielding layer 103 can wrap around the insulation layer 102 of a single conductor 101, or it can wrap around the insulation layer 102 of all conductors. The conductor 101 is made of a special alloy conductor, which has ultra-flexible and bend-resistant characteristics and can be used in normal pressure or vacuum environments, with a maximum allowable overcurrent per unit area. The conductor in the two-core signal twisted pair has a maximum signal current of 5A. The insulator 102 is made of Teflon material and is die-cast onto the conductor through a special process, which has high temperature resistance and insulation characteristics. The shielding layer 103 is formed around the insulator 102 through a spiral winding process and / or braiding process. The shielding layer employs advanced shielding winding technologies, such as high-density spiral winding and high-density braiding, to shield the conductor, eliminating the need for traditional non-woven fabrics and aluminum foil, thereby minimizing bending resistance. In another specific embodiment, refer to... Figure 6 As shown, when the minimum functional unit 11 is selected as a single air tube, the minimum functional unit 11 includes only one air tube 110. The air tube is made of a special PU material, which has ultra-flexible and bend-resistant properties, can be used in normal pressure or vacuum environments, is resistant to high and low temperatures, and is resistant to dissolution.

[0037] refer to Figure 2 As shown, the lubricating layer 12 is wound around the periphery of the smallest functional unit 11. The material of the lubricating layer 12 includes e-PTFE film, graphene, or Teflon. The e-PTFE film has the characteristics of self-lubrication, softness, and tensile strength. By using the e-PTFE film to wrap the entire smallest functional unit 11, it plays the best role in lubrication, dust prevention, and binding, and forms the core structure 10.

[0038] refer to Figure 2 As shown, the protective layer 20 is made of one or more composites of e-PTFE (expanded polytetrafluoroethylene), Teflon, and polyurethane (PU), possessing certain flexibility, toughness, dust-free properties, and self-lubricating properties. The protective layer 20 is preferably a wear-resistant, dust-free strip material. Using a hot-pressing device, the protective layers within the gaps between all the parallel-arranged core structures 10 are pressed together. The resulting protective layer 20 exhibits a tear resistance exceeding that of a single strip material body.

[0039] Each minimum functional unit 11 is wrapped with a lubricating layer 12 to form a core structure 10. 6-48 core structures 10 are arranged in a row in parallel, with a gap of about 1mm-5mm between adjacent core structures 10. They are formed into a flat ribbon cable structure by hot pressing two protective layers 20 in the vertical direction.

[0040] Figure 2 The flat cabling structure in this embodiment includes four core structure groups, with a 3mm-5mm spacing between each group. Each core structure group includes seven core structures 10, which are horizontally laid side-by-side at a 1mm spacing and then heat-pressed together by a protective layer 20. The smallest functional unit 11 in each core structure 10 is a two-core twisted-pair signal cable.

[0041] like Figures 3 to 4 As shown, the flat cabling structure according to the second embodiment of this utility model also includes a core structure 10 and a protective layer 20. Each core structure 10 includes a minimum functional unit 11 located in the middle and a lubricating layer 12 surrounding the minimum functional unit 11. Multiple core structures 10 are arranged side by side, with a certain gap between adjacent core structures 10. Two protective layers 20 with a sheet-like structure are respectively arranged to cover all core structures 10 from both sides. The two protective layers 20 between adjacent core structures 10 are formed into one piece by pressing to achieve relative fixation of multiple core structures 10.

[0042] Unlike the first embodiment, in this embodiment, the flat cabling structure includes four core structure groups, with a 3mm-5mm spacing between each group. Each core structure group includes six core structures 10, which are horizontally laid side-by-side at 1mm intervals and then heat-pressed together with a protective layer 20. The smallest functional unit 11 in one core structure 10 is a two-core signal twisted pair. The smallest functional unit 11 in the remaining five core structures 10 is a single-core power line.

[0043] like Figures 5 to 6 As shown, the flat cabling structure according to the third embodiment of this utility model also includes a core structure 10 and a protective layer 20. Each core structure 10 includes a minimum functional unit 11 located in the middle and a lubricating layer 12 that surrounds the minimum functional unit 11. Multiple core structures 10 are arranged side by side, with a certain gap between adjacent core structures 10. Two protective layers 20 with a sheet-like structure are respectively arranged to cover all core structures 10 from both sides. The two protective layers 20 between adjacent core structures 10 are formed into one piece by pressing to achieve relative fixation of multiple core structures 10.

[0044] Unlike the first embodiment, in this embodiment, the flat cabling structure includes four core structure groups, with a 3mm-5mm spacing between each group. Each core structure group includes four core structures 10, which are horizontally laid side-by-side at a 1mm spacing and then heat-pressed and covered by a protective layer 20. The smallest functional unit 11 in each core structure 10 is a single air tube.

[0045] In other embodiments, the number of core structures can be adjusted: depending on the allowable width of the motion mechanism, it can be N * the minimum power supply unit, N * the minimum signal unit, or N * the minimum airway unit, where N is a variable number.

[0046] This utility model's flat ribbon cable structure draws inspiration from the Chinese proverb, "A single pair of chopsticks can be easily broken, but ten pairs bound together are strong." Combining modern physics experience with existing materials science, electrical engineering, and manufacturing processes in related fields, it minimizes the wire diameter by retaining only the smallest functional unit, thereby reducing bending resistance. For example, instead of using ten pairs of chopsticks wound together with multi-core wires for the smallest electrical unit, it uses only one pair of chopsticks per smallest functional unit. Furthermore, drawing inspiration from the form of ancient Chinese bamboo slips, the smallest functional units are laid side-by-side in a wide, flat ribbon cable. Two highly resilient, self-lubricating, wear-resistant, and dust-free materials are used as protective layers to press the laid-out smallest functional units together, forming an extremely thin and tensile-resistant film between each unit. This ensures the structural stability of the entire ribbon cable and allows for group cutting of ultra-flexible ribbon cables.

[0047] This invention's flat cable structure directly replaces the traditional articulated tank chain, resulting in very smooth movement and eliminating the periodic vibrations that occur when each joint of the tank chain comes into contact with each other during bending. Due to the symmetrical or multi-type ordered symmetrical structure of the core, it also avoids the left-right swaying caused by the different resistances of different wire diameters, unlike traditional cables, effectively reducing Abbe error.

[0048] This utility model's flat cable structure, due to the use of the smallest functional unit, has a diameter much smaller than that of traditional round cables. Furthermore, after the smallest functional units are laid flat, they are protected by an upper and lower pressed sheet-like material layer, making them extremely strong, flexible, and resistant to pulling, with very low bending resistance. When simply fixed with necessary clamps, the weight of the clamps is already self-balancing with the bending resistance, and usually the clamp weight is even greater than the bending resistance. Even when the smallest functional unit is a single air pipe or a single water pipe, its bending resistance is very close to the weight of the clamps. The upward force of the flat cable structure is not completely eliminated, which conforms to objective physical facts, but because of the structural design of this utility model, the upward force is reduced to a sufficiently small level, so it can be balanced by the weight of the clamps fixed at both ends of the cable chain. Therefore, it is suitable for precision nanoscale motion mechanisms.

[0049] The flat cable structure of this utility model has a high-performance e-PTFE material as a lubricating layer between the smallest functional unit and the protective layer. The protective layer is tough and flexible, and is made of two flat pieces pressed together. The inner layer of the protective layer is also self-lubricating. Therefore, the smallest functional unit can actually move freely during the movement of the cable chain. In this way, the static friction between the smallest functional unit and the protective layer is very small during operation. In contrast, in traditional glued round cables, the protective layer material is pressed into the gaps of the spiral twisted pair. Even if there are non-woven materials or other materials separating them, the core wire can only move slightly in a spiral manner. Due to the large static friction between the outer sheath and the insulation layer or the length of the cable, the core wire as a whole can hardly move. The resistance is generally the forced lengthening of the outer core wire and the outer sheath, and the compression of the inner core wire and the outer sheath. Not only is the running resistance large, but it is also easy to affect the life of the cable when the bending radius is small.

[0050] The flat ribbon cable structure of this invention is extremely thin and internally lubricated. Its resistance is mainly the conductor's yield strength during bending, rather than the forced stretching of the smallest functional unit or core structure gaps. Therefore, it does not require a certain amount of time to recover from the elastic deformation caused by forced stretching. Thus, at any bending position, the resistance of the flat ribbon cable structure is the conductor's yield strength, with almost no elastic restoring force in the tensile direction. This determines its near-invariant body properties, making it easier to model in the design. Furthermore, when multiple flat ribbon cable structures are used in combination, because its protective layer is also made of a special e-PTFE material with self-lubricating properties, the resistance is only a very weak dynamic friction, making it highly suitable for precision nanoscale motion mechanisms.

[0051] The flat ribbon cable structure of this utility model has an internal insulation layer, shielding layer, lubrication layer, and external protective layer all made of wear-resistant and dust-free materials. The foamed microstructure of e-PTFE can effectively absorb and bind dust. It can also achieve CLASS1 level when the cable is bent and the layers move and rub against each other.

[0052] The flat cabling structure of this invention firstly provides independent shielding for each smallest functional unit, preventing changes in current from generating varying electric fields externally. Simultaneously, the shielding layer effectively shields against interference from other electric fields within the equipment. Secondly, its shielding layer employs a special high-density spiral winding and high-density braiding process, abandoning the traditional low-density braided mesh structure. Its effective protection area can reach over 95%.

[0053] This utility model's flat cable structure, since all moving cable chains can be decomposed into several functional units such as signal, power, water, air, and optical fiber, can be further divided into various flat cable structures such as signal flexible flat cables, power flexible flat cables, and air / water flexible flat cables after being broken down into these smallest functional units. In use, the necessary types and quantities can be selected and combined as needed, greatly reducing unnecessary idle core wires. Furthermore, the interlacing of the flat structures eliminates the need for traditional cable chain dividers, resulting in a very high effective utilization density of the overall smallest unit.

[0054] This utility model's flat cabling structure restricts the materials used in each layer: it employs a bend-resistant material; and it designs the structure of each layer: the smallest functional unit, through the inclusion of a lubricating layer, allows free movement between the smallest functional unit and the protective layer during bending, preventing static friction that could stretch the smallest functional unit and avoid excessive bending that could cause breakage of the metal conductor when it unfolds after localized bending. The lubricating layer effectively ensures that the smallest functional unit can move slightly during movement, preventing repeated stretching of the conductor and significantly improving its service life.

[0055] Because the wiring of different load-side components varies, they often require docking and conversion when entering the motion cable chain section and reaching the controller. Since components typically have many spare functions, their connectors often have numerous unused pins. For example, a limit switch might be DB9, but only 5 pins are actually used. This necessitates parallel wiring, but traditional connectors are not compatible with standard parallel wiring structures. This invention's flat ribbon cable structure allows each core structure to be independently cut and disassembled without damaging the internal shielding and lubrication layers, easily enabling parallel wiring of multiple functional units in their smallest functional unit combinations.

[0056] The flat ribbon cable structure of this utility model has a protective layer formed by pressing two pieces of material together. Teflon pressure-resistant material can be used as needed to easily solve the requirements of vacuum and high and low temperature applications.

[0057] The flat cable structure of this utility model, by setting multiple sets of core structures laid side by side, can not only meet the combination of various application needs of industrial production, but also solve the problem of non-rigid and variable cable chains. At the same time, it avoids design cycle, prototyping cycle, testing cycle, and there is no stagnant material. All types of materials can be provided to any demander, realizing the rational and efficient operation and rotation of resources, and avoiding the waste of resources due to long-term idle and ineffective materials.

[0058] The flat ribbon cable structure of this utility model can use a dual-core twisted pair signal cable as the smallest functional unit, and the internal conductor material is a special alloy material, which can effectively meet the application of long-distance signal transmission. It can effectively solve the signal attenuation problem in industry, such as the voltage drop and signal interference problem of analog signals during long-distance transmission, and the signal attenuation, signal anti-interference ability and service life problem of mobile USB cables and network cables during long-distance transmission.

[0059] Compared with existing technologies, the flat ribbon cable structure of this invention uses the smallest functional units as the basis for a flat, identical design or an ordered, symmetrical design. It features the smallest wire diameter, forming a core structure after being wrapped with a lubricating layer. Adjacent core structures are spaced 1mm-5mm apart, effectively absorbing internal stress from bending deformation. It also possesses strong interchangeability and combinability, allowing for arbitrary layering and composite construction. Similar to a book, it is easily bent and exhibits uniform resistance. The flat ribbon cable structure of this invention has a very small bending radius and self-balancing bending resistance. All smallest functional units are independently shielded, ensuring the electrical performance, mechanical properties, and service life of the smallest functional unit.

[0060] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A flat cable structure, characterized by, The utility model relates to a flat cable structure, comprising: a core structure, a plurality of said core structures are arranged side by side, and a certain gap is formed between adjacent said core structures; a protective layer is arranged to cover all said core structures, and the protective layer between adjacent said core structures is formed into an integral whole by pressing to achieve the relative fixation of a plurality of said core structures; wherein each said core structure comprises a minimum functional unit located in the middle and a lubricating layer arranged around said minimum functional unit.

2. The flat cable structure of claim 1, wherein, The gap between adjacent said core structures ranges from 1mm to 5mm.

3. The flat cable structure of claim 1, wherein, Said minimum functional unit is selected from one of a single-wire core power line, a double-wire core signal twisted pair, a single air pipe or a single optical fiber.

4. The flat cable structure of claim 1, wherein, Said minimum functional unit comprises a conductor, an insulator wrapped around said conductor and a shielding layer wrapped around said insulator.

5. The flat cable structure according to claim 4, wherein Said conductor is made of an alloy material, and said insulator is made of Teflon material.

6. The flat cable structure of claim 4, wherein, Said shielding layer is formed on the periphery of said insulator by a spiral winding process and / or a weaving process.

7. The flat cable structure of claim 1, wherein, Said lubricating layer is wrapped around the periphery of said minimum functional unit, and the material of said lubricating layer comprises e-PTFE film or graphene or Teflon.

8. The flat cable structure of claim 1, wherein, The material of said protective layer comprises one of e-PTFE, Teflon and polyurethane; and / or, Said protective layer has flexibility, toughness, non-dusting and self-lubricating properties.

9. The flat cable structure of claim 1, wherein, Said flat cable structure comprises 6-48 core structures, and said core structures are arranged side by side in a row.

10. The flat cable structure of claim 1, wherein, All core structures in said flat cable structure comprise the same minimum functional unit; or, A plurality of core structures in said flat cable structure comprise a plurality of minimum functional units.

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