Drag chain cable

Abstract

The utility model relates to the technical field of cables, and discloses a drag chain cable, which comprises a wire core main body, a plurality of conductor wire cores, a plurality of conductor wire cores and a plurality of conductor wire cores, the wrapping tape layer is wrapped on the periphery of the wire core main body, and the wrapping tape layer comprises a foamed polyethylene wrapping tape layer which is wrapped on the wire core main body; and the sheath layer is coated on the periphery of the wrapping tape layer. The drag chain cable provided by the utility model is beneficial to improving the swing performance and impedance stability of the drag chain cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a tow chain cable. Background Art

[0002] With the advancement of social technology, high-precision equipment has higher and higher requirements for drag chain cables. People hope that drag chain cables have better swing performance and better impedance stability. At present, the drag chain cable in China includes a conductive core and a sheath layer wrapped around the conductive core. However, the conductive core and sheath are easily deformed during the bending and swinging of the core, thereby reducing their own swing bending ability and impedance.

[0003] In view of this, a drag chain cable is designed to improve the swing performance and impedance stability of the drag chain cable. Utility Model Content

[0004] The utility model provides a drag chain cable, which can be beneficial to improving the swing performance and impedance stability of the drag chain cable.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drag chain cable, comprising:

[0007] The wire core body comprises a fish wire and a plurality of conductive wire cores twisted around the fish wire;

[0008] A wrapping tape layer wrapped around the outer periphery of the wire core body, wherein the wrapping tape layer comprises a foamed polyethylene wrapping tape layer wrapped around the wire core body;

[0009] The sheath layer is coated on the outer circumference of the wrapping tape layer.

[0010] Optionally, the conductive wire core at least includes a metal wire core and an insulating rubber layer coated on the outer periphery of the metal wire core.

[0011] Optionally, at least four conductive cores are provided; wherein at least two of the conductive cores are used as signal transmission lines, and the other conductive cores are used as power lines.

[0012] Optionally, the outer periphery of each of the conductive wire cores contacts the outer periphery of the fishing wire, and the outer peripheries of two adjacent conductive wire cores contact each other.

[0013] Optionally, the wrapping tape layer further comprises an aluminum foil wrapping tape layer wrapped around the outer circumference of the foamed polyethylene wrapping tape layer.

[0014] Optionally, the sheath layer includes a braided layer coated on the aluminum foil wrapping tape layer and a protective layer coated on the outer periphery of the braided layer;

[0015] The material of the protective layer is polyether thermoplastic polyurethane.

[0016] Optionally, a cotton paper layer is further included, and the cotton paper layer is arranged between the protective layer and the woven layer.

[0017] Optionally, a woven metal mesh is provided in the woven layer.

[0018] Optionally, four conductive cores are provided, and the outer colors of the cores are white, blue, yellow and orange respectively.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The drag chain cable provided by the utility model, on the one hand, optimizes the structure of the core body so that a fish wire is arranged in the middle of each conductive core, and the centrally arranged fish wire effectively improves the swing performance of the drag chain cable, thereby improving the service life of the drag chain cable; in addition, the foamed polyethylene wrapping tape layer has good impedance and good impedance stability. The foamed polyethylene wrapping tape layer is wrapped around the outer periphery of the core body, thereby improving the stability of the impedance of the drag chain cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a cross-sectional schematic diagram of the drag chain cable provided in the first embodiment of the utility model.

[0023] Figure numerals: 1, wire core body; 11, fish wire; 12, conductive core; 2, wrapping tape layer; 21, foamed polyethylene wrapping tape layer; 3, sheath layer; 121, metal wire core; 122, insulating rubber layer; 22, aluminum foil wrapping tape layer; 31, braided layer; 32, protective layer; 33, cotton paper layer. DETAILED DESCRIPTION

[0024] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0026] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0027] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0028] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0029] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0030] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0031] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0032] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0033] In view of the defects of poor swing performance and poor impedance stability of the existing drag chain cables, the applicant, based on many years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects in the existing technology and make the drag chain cables more practical. After continuous research and design, and repeated trial samples and improvements, the present utility model with real practical value was finally created.

[0034] Please refer to Figure 1 The embodiment of the utility model provides a drag chain cable, which can help improve the swing performance and impedance stability of the drag chain cable through structural optimization.

[0035] See also Figure 1The drag chain cable comprises: a wire core body 1, including a fish wire 11, and a plurality of conductive wire cores 12 twisted around the fish wire 11; the fish wire 11 has the advantages of high strength, good wear resistance, elasticity and softness, etc., and can effectively improve the overall swing performance of the drag chain cable. Preferably, the fish wire 11 is a nylon rubber wire. The wrapping tape layer 2 is wrapped around the outer periphery of the wire core body 1, and the wrapping tape layer 2 includes a foamed polyethylene wrapping tape layer 21 wrapped around the wire core body 1; the sheath layer 3 is coated on the outer periphery of the wrapping tape layer 2. In this embodiment, the foamed polyethylene wrapping tape layer 21 is formed by wrapping the foamed polyethylene tape leftward around the wire core body 1. The foamed polyethylene wrapping tape layer 21 itself has good impedance stability, and the foamed polyethylene wrapping tape layer 21 itself has good elasticity, can effectively adapt to the drag chain cable, is conducive to providing good impedance performance while not causing a significant impact on the swing performance, and is conducive to improving the service life of the drag chain cable.

[0036] Optionally, the conductive core 12 at least includes a metal core 121 and an insulating rubber layer 122 wrapped around the outer periphery of the metal core 121. At least four conductive cores 12 are provided; at least two conductive cores 12 are used as signal transmission lines, and the other conductive cores 12 are used as power lines. The insulating rubber layer 122 is used to separate the metal cores to avoid signal confusion or short circuit, thereby improving the safety of the drag chain cable.

[0037] Optionally, the outer periphery of each conductive core 12 is in contact with the outer periphery of the fish wire 11, and the outer peripheries of two adjacent conductive cores 12 are in contact with each other. This can effectively prevent the conductive core 12 from shifting during the bending process of the drag chain cable, thereby causing the drag chain cable to deform too much, which is conducive to improving the service life of the drag chain cable and improving the swing performance of the drag chain cable. The swing performance mentioned here refers to the ability to maintain shape stability during the bending process of the drag chain cable.

[0038] Optionally, the wrapping tape layer 2 further includes an aluminum foil wrapping tape layer 22 wrapped around the outer circumference of the foamed polyethylene wrapping tape layer 21. The provision of the aluminum foil wrapping tape layer 22 further improves the anti-electromagnetic interference performance of the drag chain cable.

[0039] Optionally, the sheath layer 3 includes a braided layer 31 coated on the aluminum foil wrapping tape layer 22 and a protective layer 32 coated on the outer periphery of the braided layer 31; a braided metal mesh is provided in the braided layer 31, which can further improve the anti-electromagnetic interference performance of the drag chain cable. The material of the protective layer 32 is polyether thermoplastic polyurethane, which has the advantages of good wear resistance, oil resistance, high and low temperature resistance, so as to improve the service life of the drag chain cable.

[0040] Optionally, the drag chain cable further includes a cotton paper layer 33 , and the cotton paper layer 33 is arranged between the protective layer 32 and the braided layer 31 .

[0041] Optionally, four conductive cores 12 are provided, and the outer colors are white, blue, yellow, and orange, respectively, so as to facilitate identification of each conductive core 12 and avoid confusion between signal transmission lines and power lines.

[0042] The drag chain cable of the utility model has the advantages of high and low temperature resistance, wear resistance, oil resistance, chemical resistance, high shielding, good swing performance, etc., and has strong resistance to electromagnetic interference and industrial interference during transmission. In addition, the drag chain cable of the utility model has a smaller wire diameter and an extended scope of use. In addition, the electrical performance of the drag chain cable of the utility model is more superior, and it can be used for CAT5E industrial Ethernet drag chain cable.

[0043] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A drag chain cable, characterized in that: include: The wire core body (1) comprises a fish wire (11) and a plurality of conductive wire cores (12) twisted around the fish wire (11); A wrapping tape layer (2) wrapped around the outer periphery of the wire core body (1), wherein the wrapping tape layer (2) comprises a foamed polyethylene wrapping tape layer (21) wrapped around the wire core body (1); The sheath layer (3) is coated on the outer circumference of the wrapping tape layer (2).

2. The drag chain cable according to claim 1, characterized in that: The conductive wire core (12) comprises at least a metal wire core (121) and an insulating rubber layer (122) coated on the outer periphery of the metal wire core (121).

3. The drag chain cable according to claim 2, characterized in that: At least four conductive wire cores (12) are provided; at least two of the conductive wire cores (12) are used as signal transmission wires, and the other conductive wire cores (12) are used as power supply wires.

4. The drag chain cable according to claim 1, characterized in that: The outer periphery of each of the conductive wire cores (12) contacts the outer periphery of the fishing wire (11), and the outer peripheries of two adjacent conductive wire cores (12) contact each other.

5. The drag chain cable according to claim 1, characterized in that: The wrapping tape layer (2) further comprises an aluminum foil wrapping tape layer (22) wrapped around the outer periphery of the foamed polyethylene wrapping tape layer (21).

6. The drag chain cable according to claim 5, characterized in that: The sheath layer (3) comprises a braided layer (31) coated on the aluminum foil wrapping tape layer (22) and a protective layer (32) coated on the outer periphery of the braided layer (31); The material of the protective layer (32) is polyether thermoplastic polyurethane.

7. The drag chain cable according to claim 6, characterized in that: It also comprises a cotton paper layer (33), wherein the cotton paper layer (33) is arranged between the protective layer (32) and the woven layer (31).

8. The drag chain cable according to claim 7, characterized in that: A woven metal mesh is arranged in the woven layer (31).

9. The drag chain cable according to claim 1, characterized in that: Four conductive wire cores (12) are provided, and the outer layers are white, blue, yellow and orange respectively.

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