Cable for robots with conductive shield

Abstract

The utility model relates to a cable with conductive shielding layer for robot, including a plurality of cable body, the outside of cable body is equipped with outer sheath, a plurality of cable body and outer sheath between be equipped with filling structure, cable body includes conductor cable core, the outside of conductor cable core is equipped with insulating layer, the outside of insulating layer is equipped with conductive shielding layer, conductive shielding layer includes inner conductive polymer layer, inner silver -plated copper wire mesh layer, electromagnetic induction absorption layer, outer silver -plated copper wire mesh layer and outer conductive polymer layer, inner conductive polymer layer is close -to in the outside of insulating layer, inner silver -plated copper wire mesh layer is through the silver -plated copper wire mesh spiral winding at the outside of inner conductive polymer layer, and electromagnetic induction absorption layer is located between inner silver -plated copper wire mesh layer and outer silver -plated copper wire mesh layer. Through the utility model can effectively shield outside electromagnetic interference, ensure that cable internal signal transmission is stable, power transmission is efficient, improve the stability and reliability of robot operation.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a cable for robots with a conductive shielding layer. Background Technology

[0002] With the acceleration of industrial automation, robots are being used more and more widely in various fields. In robot operation, cables are key components responsible for power transmission and signal transmission.

[0003] However, there are some problems with the cables for robots currently on the market. For example, in terms of electromagnetic shielding, complex industrial environments are full of electromagnetic interference sources. The shielding structure of traditional cables is simple and cannot effectively resist electromagnetic interference, which leads to errors in signal transmission, reduced power transmission efficiency, and in severe cases, robot malfunctions. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a robot cable with a conductive shielding layer. The specific technical solution is as follows:

[0005] A robot cable with a conductive shielding layer includes multiple cable bodies. Each cable body has an outer sheath, and a filling structure exists between the cable bodies and the outer sheath. Each cable body includes a conductor core, and the outer surface of the conductor core has an insulation layer. The outer surface of the insulation layer has a conductive shielding layer. The conductive shielding layer includes, from the inside out, an inner conductive polymer layer, an inner silver-plated copper wire mesh layer, an electromagnetic induction absorption layer, an outer silver-plated copper wire mesh layer, and an outer conductive polymer layer. The inner conductive polymer layer is tightly attached to the outside of the insulation layer. The inner silver-plated copper wire mesh layer is spirally wound around the outer surface of the inner conductive polymer layer using woven silver-plated copper wire mesh. The electromagnetic induction absorption layer is located between the inner and outer silver-plated copper wire mesh layers, and the weaving direction of the outer silver-plated copper wire mesh layer is opposite to that of the inner silver-plated copper wire mesh layer.

[0006] As an improvement to the above technical solution: the outer protective layer includes an outer tensile layer and an outer jacket layer, the outer tensile layer is disposed outside the outer filling material layer, and the outer jacket layer is disposed outside the outer tensile layer.

[0007] As an improvement to the above technical solution: an inner tensile layer is provided on the outside of the outer conductive polymer layer. Both the inner and outer tensile layers are made of a mixture of high-strength carbon fiber material and aramid fiber material. The outer jacket is made of thermoplastic elastomer material and has an anti-slip texture on its surface.

[0008] As an improvement to the above technical solution: the filling structure includes a support sleeve, an inner filling material layer and an outer filling material layer. The inner filling material layer fills the inner side of the support sleeve, and the outer filling material layer fills the space between the inner side of the outer tensile layer, the outer side of the inner tensile layer and the outer side of the support sleeve. A plurality of the cables are circumferentially distributed on the outer side of the support sleeve.

[0009] As an improvement to the above technical solution: the electromagnetic induction absorption layer has a nano-magnetic particle layer and a conductive fiber layer.

[0010] As an improvement to the above technical solution: the insulating layer adopts a double-layer ethylene propylene rubber material layer.

[0011] The beneficial effects of this utility model are:

[0012] 1. This application utilizes multiple conductive shielding layers working together to effectively shield external electromagnetic interference, ensuring stable signal transmission and efficient power transmission within the cable, thereby improving the stability and reliability of robot operation.

[0013] 2. The cable's tensile strength is significantly enhanced by the use of a blend of carbon fiber and aramid fiber in both the inner and outer tensile layers, allowing it to withstand frequent stretching movements by robots and extending its service life. Double-layer ethylene propylene rubber insulation effectively prevents leakage, ensuring safe operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the cable body in this utility model.

[0016] Reference numerals: 1. Cable body; 100. Conductor core; 101. Insulation layer; 102. Inner conductive polymer layer; 103. Inner silver-plated copper wire mesh layer; 104. Electromagnetic induction absorption layer; 105. Outer silver-plated copper wire mesh layer; 106. Outer conductive polymer layer; 107. Inner tensile layer; 2. Support sleeve; 21. Inner filling material layer; 3. Outer filling material layer; 4. Outer tensile layer; 5. Outer jacket layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Example

[0019] For robot cables with conductive shielding, please refer to [reference needed]. Figures 1-2This cable comprises multiple cable bodies 1, each with an outer sheath, and a filling structure between the cable bodies 1 and the outer sheath. This structural design effectively protects the cable bodies 1 and improves the overall protective performance and structural stability of the cable.

[0020] The cable body 1 includes a conductor core 100, which is the core component for current and signal transmission. The outer surface of the conductor core 100 is tightly wrapped with an insulation layer 101, which is made of double-layered ethylene propylene rubber. This double-layer design enhances the insulation effect. The excellent insulation, aging resistance, and chemical stability of ethylene propylene rubber effectively prevent leakage and ensure safe use. A conductive shielding layer is provided on the outer surface of the insulation layer 101.

[0021] The conductive shielding layer comprises, from the inside out, an inner conductive polymer layer 102, an inner silver-plated copper wire mesh layer 103, an electromagnetic induction absorption layer 104, an outer silver-plated copper wire mesh layer 105, and an outer conductive polymer layer 106. The inner conductive polymer layer 102 is in close contact with the outside of the insulating layer 101, and can initially shield electromagnetic interference and conduct away induced charges.

[0022] The inner silver-plated copper wire mesh layer 103 is spirally wound around the outer surface of the inner conductive polymer layer 102 by a woven silver-plated copper wire mesh. The excellent conductivity and shielding performance of the silver-plated copper wire mesh can further enhance the shielding effect. The electromagnetic induction absorption layer 104 is located between the inner silver-plated copper wire mesh layer 103 and the outer silver-plated copper wire mesh layer 105, and it has a nano-magnetic particle material layer and a conductive fiber material layer.

[0023] Nanomagnetic particles absorb electromagnetic energy and convert it into heat energy, while conductive fibers conduct the absorbed energy away. The two work together to effectively reduce electromagnetic interference.

[0024] The outer silver-plated copper wire mesh layer 105 has the opposite weaving direction to the inner silver-plated copper wire mesh layer 103. This reverse weaving structure can block electromagnetic interference from different directions in all directions, greatly improving the shielding effect.

[0025] The outer sheath comprises an outer tensile layer 4 and an outer jacket layer. The outer tensile layer 4 is located outside the outer filler layer 3 and is used to enhance the overall tensile strength of the cable. The outer tensile layer 4 is woven from a mixture of carbon fiber and aramid fiber materials. Carbon fiber has high strength and low density, while aramid fiber has high tensile strength and good chemical stability; the combination of the two significantly improves the cable's tensile performance. The outer jacket layer is located outside the outer tensile layer 4 and is made of thermoplastic elastomer material with an anti-slip textured surface. The thermoplastic elastomer material has good flexibility, wear resistance, and corrosion resistance, while the anti-slip texture increases friction when the cable comes into contact with the external environment, facilitating installation and use.

[0026] The filling structure includes a support sleeve 2, an inner filling material layer 21, and an outer filling material layer 3. The inner filling material layer 21 fills the inside of the support sleeve 2, providing support and cushioning. The outer filling material layer 3 fills the space between the inner side of the outer tensile layer 4, the outer side of the inner tensile layer 107, and the outer side of the support sleeve 2, with multiple cable bodies 1 circumferentially distributed on the outer side of the support sleeve 2. This filling structure ensures the relative positional stability between the cable bodies 1, improving the overall structural stability of the cable.

[0027] An inner tensile layer 107 is provided on the outside of the outer conductive polymer layer 106. The inner tensile layer 107 is also made of carbon fiber and aramid fiber mixed and woven together with the outer tensile layer 4 to further improve the tensile performance of the cable.

[0028] Specifically, in the preparation of cable body 1, the conductor core 100 is first pretreated to ensure a smooth surface free of impurities. Then, an insulation layer 101 is formed by uniformly wrapping two layers of ethylene propylene rubber material around the outer surface of the conductor core 100 using an extrusion process. The thickness and quality of each layer of ethylene propylene rubber are strictly controlled to ensure the uniformity and integrity of the insulation layer 101. Next, an inner conductive polymer layer 102 is formed on the outer surface of the inner insulation layer 101 using a coating process, ensuring that the coating is tightly adhered and of uniform thickness. A silver-plated copper wire mesh is wound around the outer surface of the inner conductive polymer layer 102 using a braiding device according to a set spiral angle and pitch to form an inner silver-plated copper wire mesh layer 103. After mixing nano-magnetic particle material and conductive fiber material in a certain proportion, an electromagnetic induction absorption layer 104 is formed and bonded between the inner silver-plated copper wire mesh layer 103 and the outer silver-plated copper wire mesh layer 105. Then, using a weaving device, an outer silver-plated copper wire mesh layer 105 is woven outside the outer electromagnetic induction absorption layer 104 in the opposite weaving direction to the inner silver-plated copper wire mesh layer 103. Finally, an outer conductive polymer layer 106 is formed on the outer silver-plated copper wire mesh layer 105 through a coating process, and an inner tensile layer 107 is made on its outer side using a weaving process.

[0029] After fabricating multiple cable bodies 1, place the support sleeve 2 in the designated position and fill the inside of the support sleeve 2 with the inner filling material layer 21, ensuring a tight and uniform filling. Distribute the multiple cable bodies 1 evenly around the outside of the support sleeve 2, and then fill the space between the inner side of the outer tensile layer 4, the outer side of the inner tensile layer 107, and the outer side of the support sleeve 2 with the outer filling material layer 3. On the outside of the outer filling material layer 3, braid the outer tensile layer 4 using a braiding device, ensuring braiding density and strength. Finally, use an extrusion molding process to create a thermoplastic elastomer outer layer on the outside of the outer tensile layer 4, and process an anti-slip texture on its surface.

[0030] Specifically, the cable body 1 is distributed circumferentially on the outside of the support sleeve 2, and the inner filling material layer 21 is filled on the inside of the support sleeve 2 to provide internal support for the cable body 1; the outer filling material layer 3 is filled between the inner side of the outer tensile layer 4, the outer side of the inner tensile layer 107 and the outer side of the support sleeve 2, so that the cable bodies 1 maintain a relatively stable positional relationship.

[0031] Specifically, the conductor core 100 is tightly wrapped by the insulation layer 101, the insulation layer 101 is tightly attached to the inner conductive polymer layer 102, the inner conductive polymer layer 102 is connected to the inner silver-plated copper wire mesh layer 103 by winding, the inner silver-plated copper wire mesh layer 103 is tightly attached to the electromagnetic induction absorption layer 104, the electromagnetic induction absorption layer 104 is tightly attached to the outer silver-plated copper wire mesh layer 105, the outer silver-plated copper wire mesh layer 105 is tightly attached to the outer conductive polymer layer 106, and the outer conductive polymer layer 106 is connected to the inner tensile layer 107 by braiding.

[0032] Specifically, the outer tensile layer 4 is woven on the outside of the outer filling material layer 3, wrapping the filling structure and cable body 1 inside; the outer jacket is tightly bonded to the outer tensile layer 4 through an extrusion molding process, covering the outside of the outer tensile layer 4 and protecting the entire internal structure of the cable.

[0033] Working Principle: During robot operation, when external electromagnetic interference exists, the inner conductive polymer layer 102 first shields and guides the charge of some of the electromagnetic interference. The inner silver-plated copper wire mesh layer 103 and the outer silver-plated copper wire mesh layer 105 utilize their good conductivity to reflect most of the electromagnetic interference back. The electromagnetic induction absorption layer 104 absorbs the remaining electromagnetic energy and converts it into other forms of energy, reducing the impact on the internal signal and power transmission of the cable. When the cable is stretched, the carbon fiber and aramid fiber in the inner tensile layer 107 and the outer tensile layer 4 work together to withstand the tension and prevent the cable from breaking. The double-layer ethylene propylene rubber structure of the insulation layer 101 maintains good insulation performance at all times, preventing leakage. The filling structure ensures the relative position stability between the cable bodies 1, and the anti-slip texture of the outer jacket facilitates the installation and use of the cable.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A robot cable with a conductive shielding layer, comprising a plurality of cable bodies (1), wherein an outer sheath is provided on the outer side of the plurality of cable bodies (1), and a filling structure is provided between the plurality of cable bodies (1) and the outer sheath, wherein each cable body (1) comprises a conductor core (100), an insulation layer (101) is provided on the outer side of the conductor core (100), and a conductive shielding layer is provided on the outer side of the insulation layer (101), characterized in that: The conductive shielding layer includes an inner conductive polymer layer (102), an inner silver-plated copper wire mesh layer (103), an electromagnetic induction absorption layer (104), an outer silver-plated copper wire mesh layer (105), and an outer conductive polymer layer (106) arranged sequentially from the inside to the outside. The inner conductive polymer layer (102) is closely attached to the outside of the insulating layer (101). The inner silver-plated copper wire mesh layer (103) is spirally wound around the outer side of the inner conductive polymer layer (102) by a woven silver-plated copper wire mesh. The electromagnetic induction absorption layer (104) is located between the inner silver-plated copper wire mesh layer (103) and the outer silver-plated copper wire mesh layer (105). The weaving direction of the outer silver-plated copper wire mesh layer (105) is opposite to that of the inner silver-plated copper wire mesh layer (103).

2. The robot cable with a conductive shielding layer according to claim 1, characterized in that: The outer protective layer includes an outer tensile layer (4) and an outer jacket layer (5). The outer tensile layer (4) is disposed on the outside of the outer filling material layer (3), and the outer jacket layer (5) is disposed on the outside of the outer tensile layer (4).

3. The robot cable with a conductive shielding layer according to claim 2, characterized in that: The outer conductive polymer layer (106) has an inner tensile layer (107) on its outer side, and the outer jacket layer (5) is made of thermoplastic elastomer material and has an anti-slip texture on its surface.

4. The robot cable with a conductive shielding layer according to claim 3, characterized in that: The filling structure includes a support sleeve (2), an inner filling material layer (21), and an outer filling material layer (3). The inner filling material layer (21) is filled inside the support sleeve (2), and the outer filling material layer (3) is filled between the inner side of the outer tensile layer (4), the outer side of the inner tensile layer (107), and the outer side of the support sleeve (2). A plurality of cables (1) are circumferentially distributed on the outer side of the support sleeve (2).

5. The robot cable with a conductive shielding layer according to claim 1, characterized in that: The insulation layer (101) is a double-layer ethylene propylene rubber material layer.

Images