Long-service-life drag chain cable for communication

Abstract

The utility model provides a long-life towline cable for communication, which belongs to the technical field of cables, and comprises a conductor, a foaming layer, a sheath layer, a composite shielding layer and an outer sheath layer, the overall characteristic impedance of the cable meets 120 Omega + / -15 Omega, the foaming layer is made of polyethylene material with good mechanical property and small dielectric constant, the lower dielectric constant is obtained through a physical foaming mode, and the service life of the cable is prolonged. The sheath layer is made of a soft elastomer material with good mechanical property and small dielectric constant, and can effectively protect the internal foaming layer to reinforce and prevent the foaming layer from being broken due to long-term bending, the shielding layer adopts an aluminum-plastic composite belt and a tinned copper wire to wind and shield, the outer sheath layer is made of a wear-resistant polyether polyurethane material, and the service life of the sheath layer is prolonged. Through the combination of the foaming layer with a low dielectric constant and the skin layer, the whole cable meets the characteristic impedance of 120 omega + / -15 omega, and the cable is ensured to have a smaller outer diameter of a finished product, is light and soft, can be dragged and operated for a long time, and has the capability of transmitting signals at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field especially relates to a high life drag chain cable for communication. BACKGROUND

[0002] With the increasingly mature industrial robot technology, the application of industrial robots begins to be rapidly popularized, and with the continuous expansion of the application scenarios of industrial robots, the drag chain or mobile application cable in the special transfer position of the industry cannot have the defects of small outer diameter, light weight, strong transmission capacity and high transfer life at the same time. INVENTION CONTENTS

[0003] The utility model discloses a high life drag chain cable for communication, which comprises an outer protective layer, a composite shielding layer is wrapped in the outer protective layer, a plurality of conductors wrapped and arranged are wrapped in the composite shielding layer, a foaming layer and a sheath layer are sequentially wrapped outside each conductor.

[0004] Further, the internal conductors of the cable are made of fine tinned copper wires with a diameter ratio of 12-13 times smaller than the original diameter, which are bundled once, have strong bending resistance and are soft.

[0005] Further, the foaming layer is made of high-density PE material with high and low temperature resistance, excellent mechanical properties, small dielectric constant and insulation foaming, which effectively reduces the overall relative dielectric constant, thereby meeting the application requirements of characteristic impedance under small outer diameter.

[0006] Further, the sheath layer is made of an elastomer material with high and low temperature resistance, excellent mechanical properties, small dielectric constant and softness, and the sheath layer material has high strength, which can effectively protect the foaming layer from being broken due to long-term transfer bending, thereby affecting the service life.

[0007] Further, the composite shielding layer is made of a plurality of fine tinned copper wires with a diameter ratio of 14-15 times smaller than the original diameter, which are loosely wound and coated with an aluminum-plastic composite tape below, and has good shielding effect and high shielding life during the drag chain transfer process.

[0008] Further, the outer protective layer is made of a polyether polyurethane material with low temperature resistance and wear resistance, which is halogen-free and has good wear resistance, and can meet the application requirements of the overall drag chain without wear and tear for more than 30 million times.

[0009] Further, the materials used in the cable are all halogen-free materials, which meet the overall environmental protection requirements of the system.

[0010] Further, the cable is cooperated by the reasonable foaming layer and the sheath layer, the sheath layer reinforces the internal foaming layer, and the foaming layer makes the overall dielectric constant of the two smaller, so that the overall characteristic impedance of the cable is 120Ω±15Ω under small outer diameter, and the data transmission capacity is guaranteed.

[0011] Compared with the prior art, the utility model provides a high -life drag chain cable for communication, and the cable has the advantages of soft structure, smaller finished product outer diameter, light mass, halogen-free environmental protection, characteristic impedance 120Ω 15Ω, high shielding life, high drag chain service life, and stable use under the environment of -40 DEG C to 80 DEG C. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a sectional structure view of the utility model high -life drag chain cable for communication.

[0013] Among them, 1, conductor, 2, foaming layer, 3, sheath layer, 4, composite shielding layer, 5, outer sheath. DETAILED DESCRIPTION

[0014] The utility model high -life drag chain cable for communication will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiment of the utility model is shown, and it should be understood that the utility model described herein can be modified by those skilled in the art, and the advantageous effects of the utility model can still be achieved, therefore, the following description should be understood as extensive knowledge for those skilled in the art, and not as a limitation on the utility model.

[0015] As Figure 1 Shown, a high -life drag chain cable for communication, the cable includes: conductor 1, foaming layer 2, sheath layer 3, composite shielding layer 4, outer sheath 5.

[0016] The cable internal conductor 1 is made of fine tinned copper wire small section diameter ratio disposable bundle, and has strong bending resistance and softness.

[0017] Foaming layer 2 adopts high -quality foaming high -density PE material, and the material obtains smaller dielectric constant through foaming and has good mechanical properties, and is low temperature resistant.

[0018] Sheath layer 3 adopts elastomer material that is high and low temperature resistant, has excellent mechanical properties, smaller dielectric constant and soft, and has higher strength, can effectively protect the internal foaming layer 2 from breaking and bending under long -term migration, affect service life, and ensure use requirements.

[0019] The outer sheath 5 of the cable adopts high -quality low -temperature resistant soft wear -resistant polyether polyurethane material, and the material is halogen-free, wear -resistant, and meets the application of the whole drag chain 3000 million times without wear and tear of the sheath.

[0020] The composite shielding layer 4 of the cable is made of multiple fine tinned copper wire small section diameter ratio sparse winding, and the lower aluminum plastic composite tape is wrapped, to ensure that the shielding layer has better shielding effect and higher migration application life.

[0021] The cable is cooperated by the foaming layer 2 and the sheath layer 3, the sheath layer 3 reinforces the internal foaming layer, so that the two have smaller dielectric constant, can meet the cable characteristic impedance 120Ω±15Ω requirement under the condition of smaller outer diameter, and obtain smaller cable finished product outer diameter. Meanwhile, the cable has small overall material density and has the foaming layer 2 structure, and the cable has lighter overall quality. The cable material is halogen-free, and meets the system environmental protection requirement.

[0022] The above are only preferred embodiments of the present application, and do not have any limiting effect on the present application. Any person skilled in the art, without departing from the technical scheme of the present application, can make any form of equivalent replacement or modification of the technical scheme and technical content disclosed by the present application, and the change still belongs to the protection scope of the present application.

Claims

1. A high life span drag chain cable for communication, characterized by, The cable comprises an outer protective layer, a composite shielding layer wrapped in the outer protective layer, and a plurality of conductors wrapped in the composite shielding layer, wherein each conductor is sequentially wrapped with a foaming layer and a sheath layer outside. The foaming layer and the sheath layer are matched with each other, and the overall characteristic impedance of the cable is 120Ω±15Ω. The sheath layer is made of an elastomer material.

2. The high life-span wireline cable for communication according to claim 1, wherein, The conductors are made of tinned copper wires and are formed by one-time bundling with a 12-13 times pitch-diameter ratio.

3. The high life-span wireline cable for communication according to claim 1, wherein, The foaming layer is made of a high-density PE material.

4. The high life-span wireline cable for communication according to claim 1, wherein The composite shielding layer is made of a plurality of tinned copper wires and is formed by sparse winding with a 14-15 times pitch-diameter ratio, and the outer periphery of the composite shielding layer is coated with an aluminum-plastic composite tape.

5. The long-life wireline cable for communication according to claim 1, wherein The outer protective layer is made of a polyether polyurethane material.

6. The high life expectancy wireline cable for communication according to claim 1, wherein, The cable is made of a halogen-free material.

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