Data transmission line
By setting an empty groove between the insulation layer and the outer sheath of the data transmission line, the problem of balancing coupling effect and signal attenuation in traditional data transmission lines is solved, resulting in better signal transmission performance.
Patent Information
- Application Number
- CN202422939315.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Traditional data transmission lines, while ensuring effective coupling, suffer from significant signal attenuation.
By creating an empty first groove between the insulation layer and the outer sheath of the data transmission line, the spacing between the core wires is shortened and an air environment suitable for signal transmission is provided, thereby reducing signal attenuation.
This improves the coupling effect of the core wire, while reducing signal attenuation and improving signal transmission performance.
Smart Images
Figure CN223513670U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication wires and cables, and in particular to data transmission lines. Background Technology
[0002] High-speed cables, also known as high-speed data transmission lines or simply data transmission lines, use differential pairs for signal transmission. Their basic structure consists of two core wires that are symmetrical along the direction of the high-speed cable. Each core wire has a conductor covered with an insulating medium, which can be one, two, or multiple layers.
[0003] Theoretically, signals transmit almost without attenuation in a vacuum, so the signal transmission effect is best in a vacuum environment. However, this is difficult to achieve in actual products. Therefore, in practical use, the signal transmission effect in an air environment is relatively better. In contrast, when the insulation layer of a high-speed cable is completely filled with insulating medium, the structural stability is the best, but the signal attenuation is greater, so the signal transmission effect is relatively poor.
[0004] A traditional high-speed data transmission line has a cross-section along its extension direction as shown in the image. Figure 1 As shown, the high-speed data transmission line has a first core wire (100) and a second core wire (200). The first core wire (100) and the second core wire (200) are symmetrically arranged with respect to the symmetry plane (300). The first core wire (100) includes a first conductor (110) and a first insulating medium (120) covering the first conductor (110). The second core wire (200) includes a second conductor (210) and a second insulating medium (220) covering the second conductor (210). The first core wire (100) and the second core wire (200) are integrated as a whole. Two symmetrical ground wires (500) are provided outside the whole. A shielding layer (600) is wrapped around the whole and the two ground wires (500). During the process of wrapping the shielding layer (600), a gap (400) is formed between the whole and the shielding layer (600), as well as a gap (400) between the whole and the ground wires (500) and the shielding layer (600). A protective layer (700) is also wrapped around the shielding layer (600). This high-speed data transmission line only has a first insulating medium (120) covering the first conductor (110) and a second insulating medium (220) covering the second conductor (210). Therefore, in order to ensure sufficient insulation for the first conductor (110) and the second conductor (210), the first insulating medium (120) and the second insulating medium (220) need to be relatively thick, resulting in a large gap between the first conductor (110) and the second conductor (210), which leads to poor coupling effect and also has the problem of large attenuation.
[0005] Another traditional high-speed data transmission line has a cross-section along its extension direction as shown in the image. Figure 2 As shown, withFigure 1 Different from the high-speed data transmission line shown in the prior art, Figure 2 In the high-speed data transmission line shown in the prior art, the first insulating medium (120) and the second insulating medium (220) are integrally arranged, the shielding layer (600) is wrapped outside the integrally arranged first insulating medium (120) and the second insulating medium (220), and the protective layer (700) is wrapped outside the shielding layer (600) and the two ground wires (500). During the wrapping of the protective layer (700), the gap (400) between the protective layer (700), the shielding layer (600) and the two ground wires (500) is formed. However, as described above, the entire inside of the insulating layer is filled with insulating medium, and the signal attenuation is large, so the signal transmission effect is relatively poor. Content of the utility model
[0006] Therefore, it is necessary to provide a data transmission line to solve the problem that the traditional data transmission line cannot achieve both coupling and attenuation.
[0007] One embodiment of the present application is a data transmission line, comprising a first core wire and a second core wire symmetrically arranged relative to a symmetry plane, a first insulating medium of the first core wire and a second insulating medium of the second core wire, which are integrally arranged as a first insulating layer; and
[0008] The data transmission line further comprises a second insulating layer and an outer layer, the first core wire and the second core wire being arranged as a whole inner core wire, the second insulating layer being arranged outside the whole inner core wire, and the outer layer being arranged outside the second insulating layer;
[0009] The data transmission line is provided with a first recess between the first insulating layer and the outer layer, and the first recess is empty and symmetrically arranged relative to the symmetry plane;
[0010] In addition, in the cross section of the data transmission line in the extension direction, the first recess is located on the periphery of the second insulating layer.
[0011] The above-mentioned data transmission line, through the cooperation of the first insulating layer, the second insulating layer and the outer layer, forms the first recess located on the periphery of the second insulating layer. On the one hand, the second insulating layer cooperates with the first insulating layer, which is conducive to reducing the thickness of the first insulating layer, thereby shortening the distance between the first conductor of the first core wire and the second conductor of the second core wire, thus improving the coupling effect of the first core wire and the second core wire. On the other hand, since the first recess is empty and symmetrically arranged relative to the symmetry plane, without affecting the coupling effect of the first core wire and the second core wire, a space is formed, which provides an air environment suitable for signal transmission, thereby reducing signal attenuation, and thus the signal transmission effect is relatively good.
[0012] In one of the embodiments, the second insulation layer is arranged inwardly relative to the sheath layer, so that the first groove is formed between the outer periphery of the second insulation layer and the sheath layer.
[0013] In one of the embodiments, the first grooves are evenly distributed along the outer periphery of the second insulation layer.
[0014] In one of the embodiments, the first insulation medium and the second insulation medium have overlapping portions, so as to reduce the distance between the first conductor of the first core wire and the second conductor of the second core wire.
[0015] In one of the embodiments, a second groove is further formed between the first insulation medium and the second insulation medium, and the second groove is vacant.
[0016] In one of the embodiments, the first groove has a triangular, rectangular or arcuate cross section in the cross section along the extension direction of the data transmission line.
[0017] In one of the embodiments, the sheath layer is a shielding layer or a protective layer; or,
[0018] The sheath layer comprises a shielding layer and a protective layer arranged outside the shielding layer.
[0019] In one of the embodiments, the first insulation layer and the second insulation layer are integrally arranged to form an insulation layer.
[0020] In one of the embodiments, the first groove is formed between the inner periphery of the second insulation layer and the first insulation layer.
[0021] In one of the embodiments, the first grooves are evenly distributed along the inner periphery of the second insulation layer; or,
[0022] The thickness of the second insulation layer is greater than the thickness of the first insulation layer.
[0023] In one of the embodiments, an insulation connecting section is arranged between the first insulation medium and the second insulation medium. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0025] Figure 1A schematic cross-sectional view of a conventional high-speed data transmission line along its direction of extension.
[0026] Figure 2 A schematic cross-sectional view of another conventional high-speed data transmission line along its direction of extension.
[0027] Figure 3 A schematic view of the structure of a first embodiment of the data transmission line according to the present application.
[0028] Figure 4 A schematic view of the structure of a second embodiment of the data transmission line according to the present application. Figure 3 A schematic view of another identification of the embodiment shown.
[0029] Figure 5 A schematic view of the structure of a third embodiment of the data transmission line according to the present application.
[0030] Figure 6 A schematic view of another identification of the embodiment shown. Figure 5
[0031] A schematic view of the structure of a fourth embodiment of the data transmission line according to the present application. Figure 7
[0032] A schematic view of another identification of the embodiment shown. Figure 8 Figure 7 A schematic view of the structure of a fifth embodiment of the data transmission line according to the present application.
[0033] Figure 9 A schematic view of another identification of the embodiment shown.
[0034] Figure 10 Figure 9 A schematic view of the structure of a sixth embodiment of the data transmission line according to the present application.
[0035] Figure 11 A schematic view of another identification of the embodiment shown.
[0036] Figure 12 A schematic view of another identification of the embodiment shown.
[0037] Reference numerals: first core wire 100, first conductor 110, first insulating medium 120, second core wire 200, second conductor 210, second insulating medium 220, plane of symmetry 300, void 400, ground wire 500, shielding layer 600, protective layer 700, insulating layer 800, first insulating layer 810, second insulating layer 820, insulating connecting section 830, data transmission line 900, first recess 910, second recess 920, overall inner core wire 930. DETAILED DESCRIPTION
[0038] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the detailed description of the specific embodiments of the present application will be made below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than the one described herein, and one of ordinary skill in the art can make similar improvements without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.
[0039] It is to be noted that when a component is referred to as being "on" or "disposed on" another component, it can be directly on the other component or there can be intervening components present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used in the description of the specification are for the purpose of illustration only and do not indicate an exclusive orientation.
[0040] In addition, the terms "first", "second", and the like, are used merely to describe the features and do not imply or suggest relative importance or a quantity of the specified technical features. Thus, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.
[0041] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above", and "over" of a first feature to a second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "above", "over", and "on" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is horizontally higher than the second feature. The "below", "under", and "under" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is horizontally lower than the second feature.
[0042] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.
[0043] This application discloses a data transmission line, which includes some or all of the technical features of the following embodiments; that is, the data transmission line includes some or all of the following structures. In one embodiment of this application, a data transmission line includes a first core wire and a second core wire arranged symmetrically with respect to a symmetrical plane. The first insulating medium of the first core wire and the second insulating medium of the second core wire are used as a whole as a first insulating layer. Furthermore, the data transmission line also includes a second insulating layer and a shielding layer, with the first core wire and the second core wire as an integral inner core wire. The second insulating layer covers the outer side of the integral inner core wire, and the shielding layer covers the outer side of the second insulating layer. The data transmission line has a first groove between the first insulating layer and the shielding layer. The first groove is empty and symmetrically arranged with respect to the symmetrical plane. In the cross-section of the data transmission line extending in the direction of extension, the first groove is located on the periphery of the second insulating layer. The aforementioned data transmission line, through the cooperation of the first insulating layer, the second insulating layer, and the shielding layer, forms a first groove located on the periphery of the second insulating layer. On one hand, the cooperation between the second insulating layer and the first insulating layer helps to reduce the thickness of the first insulating layer, thereby shortening the distance between the first conductor of the first core wire and the second conductor of the second core wire, thus improving the coupling effect between the first and second core wires. On the other hand, since the first groove is empty and symmetrically arranged relative to the symmetrical surface, it forms an actively provided space without affecting the coupling effect between the first and second core wires, thus providing a suitable air environment for signal transmission, which helps to reduce signal attenuation, resulting in relatively good signal transmission performance. The following section will combine... Figures 1 to 12 The data transmission line will be described in detail below.
[0044] In one embodiment, a data transmission line 900, such as Figure 3 As shown, it includes a first core wire 100 and a second core wire 200 symmetrically arranged with respect to the symmetry plane 300. The first core wire 100 includes a first conductor 110 and a first insulating medium 120 covering the first conductor 110. The second core wire 200 includes a second conductor 210 and a second insulating medium 220 covering the second conductor 210. The first core wire 100 and the second core wire 200 are used as an integral inner core wire 930. It can be understood that, in the cross-section of the data transmission line 900 extending in the direction of extension, the symmetry plane 300 can also be referred to as the axis of symmetry or the line of symmetry.
[0045] Combination Figure 4, the first insulating medium 120 of the first core wire 100 and the second insulating medium 220 of the second core wire 200 are integrally formed as a first insulating layer 810; and the data transmission line 900 further comprises a second insulating layer 820 and an outer covering layer, which is a shielding layer 600 in the embodiment; specifically, the second insulating layer 820 is arranged outside the integral inner core wire 930, and the shielding layer 600 is arranged outside the second insulating layer 820; the data transmission line 900 is provided with a first recess 910 between the first insulating layer 810 and the shielding layer 600, the first recess 910 is empty and symmetrically arranged with respect to the symmetry plane 300; and in the cross section of the data transmission line 900 in the extension direction, the first recess 910 is located on the periphery of the second insulating layer 820.
[0046] By comparison Figure 1 and Figure 2 with the conventional technical solutions shown in Figs. 1 to 4, the structural design of the data transmission line 900 according to the present application forms the first recess 910 on the periphery of the second insulating layer 820 by cooperation of the first insulating layer 810, the second insulating layer 820 and the outer covering layer, which on the one hand facilitates reduction of the thickness of the first insulating layer 810, thereby shortening the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200, and thus improving the coupling effect of the first core wire 100 and the second core wire 200; and on the other hand, since the first recess 910 is empty and symmetrically arranged with respect to the symmetry plane 300, a space is formed under the premise that the coupling effect of the first core wire 100 and the second core wire 200 is not affected, thereby providing an air environment suitable for signal transmission, and thus facilitating reduction of signal attenuation, and thus the signal transmission effect is relatively good.
[0047] In one of the embodiments, as shown in Fig. 5, the second insulating layer 820 is arranged concavely with respect to the outer covering layer such as the shielding layer 600, so that the first recess 910 is formed between the outer periphery of the second insulating layer 820 and the outer covering layer such as the shielding layer 600. Figure 4 Exemplarily, in the embodiment, the number of the first recess 910 is one pair, and the pair of first recesses 910 is symmetrically arranged in the middle of the data transmission line 900. It can also be understood that, for the cross section of the data transmission line in the extension direction, the pair of first recesses 910 as a whole is not only left-right symmetric, but also up-down symmetric in the direction shown in Fig. 5, and thus facilitates provision of an air environment suitable for signal transmission, thereby ensuring the signal transmission effect as much as possible without affecting the coupling effect of the first core wire 100 and the second core wire 200, i.e. without affecting the coupling effect of the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200. Figure 4
[0048] In one embodiment, as shown in Figure 5 The first insulating medium 120 and the second insulating medium 220 have overlapping portions to reduce the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200. In this embodiment, the first insulating layer 810 and the second insulating layer 820 are integrally formed as the insulating layer 800. This design not only helps to reduce the thickness of the first insulating layer 810 and thus the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200, but also helps to further reduce the distance between the first conductor 110 and the second conductor 210 by the overlapping design of the first insulating medium 120 and the second insulating medium 220. This helps to improve the coupling effect of the first conductor 110 and the second conductor 210, thus improving the signal transmission performance of the data transmission line 900 while ensuring the insulation performance of the first conductor 110 and the second conductor 210.
[0049] In one embodiment, as shown in Figure 3 and Figure 4 The outer layer is a shielding layer 600. In other embodiments, the outer layer can also be a protective layer. In one embodiment, as shown in Figure 5 The outer layer includes a shielding layer 600 and a protective layer 700 covering the shielding layer 600. As an example, a data transmission line 900 is shown in Figure 5 and Figure 6As shown, the data transmission line 900 includes a first core wire 100 and a second core wire 200 symmetrically arranged relative to a symmetry plane 300, a first insulating medium 120 of the first core wire 100 and a second insulating medium 220 of the second core wire 200 as a whole to form a first insulating layer 810; and the data transmission line 900 further includes a second insulating layer 820, a ground wire 500, a shielding layer 600 and a protective layer 700, the first core wire 100 and the second core wire 200 as a whole to form an inner core wire 930, the second insulating layer 820 is arranged outside the inner core wire 930, the shielding layer 600 is arranged outside the second insulating layer 820, and the protective layer 700 is arranged outside the shielding layer 600 and the ground wire 500; the data transmission line 900 is provided with a first groove 910 between the first insulating layer 810 and the shielding layer 600, the first groove 910 is empty and symmetrically arranged relative to the symmetry plane 300; and in a cross section of the data transmission line 900 in an extending direction, the first groove 910 is located on a periphery of the second insulating layer 820. The remaining embodiments are similar to this and will not be described in detail. In this embodiment, the first insulating layer 810 and the second insulating layer 820 are integrally arranged to form an insulating layer 800. In such a structure, the protective layer 700 plays a protective role for the shielding layer 600 and the internal structure thereof; for example, the protective layer 700 can be made of plastic or other materials and can be made by coating, extrusion or other methods, and the protective layer 700 can be realized by using conventional technologies, which are not limited by the embodiments of the present application.
[0050] In one embodiment, as shown in Figure 7 and Figure 8 shown, the first grooves 910 are uniformly and spacedly distributed along the outer periphery of the second insulating layer 820. For example, in this embodiment, the first insulating layer 810 and the second insulating layer 820 are integrally arranged to form an insulating layer 800. Specifically, as shown in Figure 7 and Figure 8 shown, in this embodiment, in a cross section of the data transmission line 900 in an extending direction, the first grooves 910 have a triangular cross section; in other embodiments, in a cross section of the data transmission line 900 in an extending direction, the first grooves 910 have a rectangular or arcuate cross section. The uniform and spaced distribution of the first grooves 910, on the one hand, makes the second insulating layer 820 have a portion in contact with the shielding layer 600, thereby facilitating the guarantee of the structural stability of the data transmission line 900; on the other hand, it is beneficial to provide more uniform and more empty areas as actively provided space, i.e. to provide an air environment suitable for signal transmission, as described above, which is beneficial to reduce signal attenuation, and thus the signal transmission effect is relatively good.
[0051] In one embodiment, as shown inFigure 9 and Figure 10 As shown, a second groove 920 is formed between the first insulating medium 120 and the second insulating medium 220, and the second groove 920 is empty. That is, the data transmission line 900 has the first groove 910 located on the outer periphery of the second insulating layer 820, and has the second groove 920 located between the first insulating medium 120 and the second insulating medium 220, and both the first groove 910 and the second groove 920 are empty, thereby forming a large amount of space actively provided, which usually contains air to provide an air environment suitable for signal transmission. Figure 9 and Figure 10 In the embodiment shown, the first insulating layer 810 and the second insulating layer 820 are integrally provided as the insulating layer 800. In specific applications, the first groove 910 can be located on the outer periphery of the second insulating layer 820, i.e. adjacent to the sheath layer such as the shielding layer 600, or can be located on the inner periphery of the second insulating layer 820, i.e. adjacent to the first insulating medium 120. It can be understood that the inner periphery and the outer periphery of the second insulating layer 820 are relative to the data transmission line 900, and close to the inside of the data transmission line 900 such as the center, or close to the first insulating medium 120, which is called the inner periphery, and far away from the inside of the data transmission line 900, or far away from the first insulating medium 120, which is called the outer periphery. In this embodiment, the first insulating layer 810 and the second insulating layer 820 are integrally provided as the insulating layer 800. In this case, the second groove 920 is located on the periphery of the insulating layer 800, i.e. the outer edge or the outer periphery, and can also be understood as the second groove 920 is located at a position between the first core wire 100 and the second core wire 200. Such a structure design is beneficial to shorten the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200, thereby improving the coupling effect of the first core wire 100 and the second core wire 200, and is beneficial to provide an air environment suitable for signal transmission, thereby reducing signal attenuation, and thus the signal transmission effect is relatively good.
[0052] In one embodiment, as shown in Figure 11As shown, the inner periphery of the second insulating layer 820 and the first insulating layer 810 form the first groove 910. In this embodiment, the number of the first groove 910 is one pair, and the pair of the first groove 910 is symmetrically arranged in the middle of the data transmission line 900. In one embodiment, the first groove 910 is uniformly distributed along the inner periphery of the second insulating layer 820. For example, the first groove 910 can include a main space part and an auxiliary space part. The number of the main space part is one pair, and the pair of the main space part is symmetrically arranged in the middle of the data transmission line 900. The auxiliary space part is uniformly distributed along the inner periphery of the second insulating layer 820 to increase the actively provided space in the data transmission line 900, thereby providing an air environment suitable for signal transmission, thereby facilitating the reduction of signal attenuation, and thus the signal transmission effect is relatively good.
[0053] In order to further shorten the distance between the first conductor 110 and the second conductor 210, in one embodiment, as shown in Figure 12 The thickness of the second insulating layer 820 is greater than the thickness of the first insulating layer 810. For example, the thickness of the second insulating layer 820 is 120% to 180% of the thickness of the first insulating layer 810. Such a structure design, on the one hand, through the cooperation of the second insulating layer 820 and the first insulating layer 810, is conducive to reducing the thickness of the first insulating layer 810, thereby shortening the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200. On the other hand, through the additional improvement that the thickness of the second insulating layer 820 is greater than the thickness of the first insulating layer 810, it is conducive to further shorten the distance between the first conductor 110 and the second conductor 210, and under the premise of ensuring the external insulation performance of the first conductor 110 and the second conductor 210 as much as possible, the coupling effect of the first conductor 110 and the second conductor 210 is improved, thereby facilitating the improvement of the signal transmission performance of the data transmission line 900 in this embodiment.
[0054] In one embodiment, as shown in Figure 12As shown, the first insulating medium 120 and the second insulating medium 220 are provided with an insulating connecting section 830. As an example, the first insulating medium 120 and the second insulating medium 220 are provided with the insulating connecting section 830 without changing the distance between the first conductor 110 of the first core wire 100 and the second conductor 210 of the second core wire 200. In this embodiment, the insulating connecting section 830 can also be referred to as a connecting rib. Such design is advantageous for further increasing the actively provided space between the first core wire 100 and the second core wire 200. In combination with the embodiment in which the thickness of the second insulating layer 820 is greater than the thickness of the first insulating layer 810, it is advantageous to further provide a larger air environment suitable for signal transmission under the premise of improving the coupling effect of the first core wire 100 and the second core wire 200, so as to reduce signal attenuation, and thus the signal transmission effect is relatively good.
[0055] The data transmission line 900 will be further illustrated below Figures 3 to 12 In one embodiment, the surfaces of the first insulating medium 120 and the second insulating medium 220, or the surfaces of the insulating layer 800, the first insulating layer 810, and the second insulating layer 820 are made into a non-planar structure, and air is introduced into the gap between the outer layer and the insulating medium of each insulating layer. Such structure can introduce a certain amount of air under the premise of ensuring the coupling effect, reduce the attenuation of the data transmission line 900, and improve the data transmission performance.
[0056] As an example, the conductors in the data transmission line 900 include the first conductor 110 and the second conductor 210. Each of the conductors, i.e., the first conductor 110 or the second conductor 210, is a single or multi-stranded metal wire, which is any one of silver-plated copper, tin-plated copper, bare copper, silver-plated copper clad steel, or silver-plated copper clad aluminum conductor, and the cross-sectional shape can be any one of a circle, an ellipse, a flat shape, or other shapes, which are not additionally limited in the embodiments of the present application.
[0057] As an example, the insulating medium in the data transmission line 900, including the first insulating medium 120 and the second insulating medium 220, also includes a third insulating medium of the second insulating layer 820; the materials of the first insulating medium 120, the second insulating medium 220 and the third insulating medium can be the same or different; generally, the materials of the first insulating medium 120 and the second insulating medium 220 are the same. As an example, the material of the insulating medium includes but is not limited to any one of a polyethylene insulating layer, a foamed polyethylene insulating layer, a polypropylene insulating layer, a foamed polypropylene insulating layer, a polyfluoroethylene propylene insulating layer, a foamed polyfluoroethylene propylene insulating layer, a polytetrafluoroethylene insulating layer, a foamed polytetrafluoroethylene insulating layer, a microporous polytetrafluoroethylene insulating layer, a fusible polytetrafluoroethylene insulating layer, and the like, and the present application does not make additional limitations thereon.
[0058] As an example, the insulating layer 800, the first insulating layer 810 or the second insulating layer 820 can be composed of one layer of insulating medium or can be composed of multiple layers of different insulating medium, and the present application does not make additional limitations thereon. As an example, as shown in Figure 3 or Figure 9 The first insulating medium 120 and the second insulating medium 220 can be two insulating materials shaped separately, can be integrally shaped at one time, or can have an insulating connecting section 830 as a connecting rib therebetween, and the length of the connecting rib is not limited, and in an extreme case, can be close to 0, for example, 0.1 mm, and only needs to ensure that the two wires are bonded, and after bonding, the positions of the two core wires can be ensured to be stable and firm.
[0059] As an example, the outer contour or the inner contour of the insulating layer 800, the first insulating layer 810 or the second insulating layer 820 is provided with a first groove 910, and the shape of the first groove 910 can have multiple changes, including but not limited to a triangular groove, a zigzag groove or a circular arc groove, etc., but the first groove 910 is symmetrically arranged with respect to the symmetry plane 300, that is, as shown in Figure 3 or Figure 5 Symmetrical along the central axis.
[0060] As an example, the second insulating layer 820 is a middle layer, and an outer shielding layer 600 or a protective layer 700 can be wrapped thereon; or the combination of the shielding layer 600 and the protective layer 700.
[0061] It should be noted that other embodiments of the present application also include a data transmission line capable of being implemented, which is formed by the mutual combination of the technical features in the above embodiments.
[0062] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the application embraces all such possible combinations.
[0063] The above-described embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that, for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.
Claims
1. A data transmission line (900) comprising a first core wire (100) and a second core wire (200) arranged symmetrically with respect to a symmetry plane (300), characterized in that, The first insulating medium (120) of the first core wire (100) and the second insulating medium (220) of the second core wire (200) are integrally formed as a first insulating layer (810); and The data transmission line (900) further comprises a second insulating layer (820) and an outer layer, the first core wire (100) and the second core wire (200) being integrally formed as an inner core wire (930), the second insulating layer (820) being arranged outside the inner core wire (930), and the outer layer being arranged outside the second insulating layer (820); The data transmission line (900) is provided with a first groove (910) between the first insulating layer (810) and the outer layer, the first groove (910) being empty and symmetrically arranged relative to the symmetry plane (300); In a cross section of the data transmission line (900) in the extending direction, the first groove (910) is located on the peripheral edge of the second insulating layer (820).
2. The data transmission line (900) according to claim 1, characterized in that, The second insulating layer (820) is arranged concavely relative to the outer layer, so that the first groove (910) is formed between the outer peripheral edge of the second insulating layer (820) and the outer layer.
3. The data transmission line (900) according to claim 2, characterized in that, The first groove (910) is uniformly and intermittently distributed along the outer peripheral edge of the second insulating layer (820).
4. The data transmission line (900) according to claim 3, characterized in that The first insulating medium (120) and the second insulating medium (220) have a portion overlapping each other, so as to reduce the distance between the first conductor (110) of the first core wire (100) and the second conductor (210) of the second core wire (200).
5. The data transmission line (900) according to claim 4, characterized in that, A second groove (920) is further formed between the first insulating medium (120) and the second insulating medium (220), and the second groove (920) is empty.
6. The data transmission line (900) according to claim 2, characterized in that, In a cross section of the data transmission line (900) in the extending direction, the first groove (910) has a triangular, rectangular or arcuate cross section.
7. The data transmission line (900) according to claim 1, characterized in that, The outer layer is a shielding layer (600) or a protective layer (700); or The outer layer comprises a shielding layer (600) and a protective layer (700) arranged outside the shielding layer (600).
8. The data transmission line (900) according to any one of claims 1 to 7, characterized in that, The first insulating layer (810) and the second insulating layer (820) are integrally arranged to form an insulating layer (800).
9. The data transmission line (900) according to claim 1, characterized in that, The first groove (910) is formed between the inner peripheral edge of the second insulating layer (820) and the first insulating layer (810).
10. The data transmission line (900) according to claim 9, characterized in that, The first groove (910) is uniformly and intermittently distributed along the inner peripheral edge of the second insulating layer (820); or The thickness of the second insulating layer (820) is greater than the thickness of the first insulating layer (810); or An insulating connecting section (830) is arranged between the first insulating medium (120) and the second insulating medium (220).