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CN-224203873-U - High-temperature-resistant flame-retardant power cable applied to robot

CN224203873UCN 224203873 UCN224203873 UCN 224203873UCN-224203873-U

Abstract

The utility model belongs to the field of robot power cables, and provides a high-temperature-resistant flame-retardant power cable applied to a robot, which comprises a plurality of conductor layers and insulating layers, wherein each conductor layer is coated with the insulating layer, the insulating layers are made of polytetrafluoroethylene materials, the insulating layers and the conductor layers form insulating wire cores together, and a cable core is formed by twisting a filling layer among the plurality of insulating wire cores; the polyester layer and the low-smoke halogen-free flame-retardant belt are sequentially wrapped outside the cable core and used for isolating the insulating layer. Compared with the prior art, the utility model has the advantages that polytetrafluoroethylene is used as an insulating material, the dielectric strength and the dielectric loss stability at high temperature are improved, and the halogen-free flame-retardant polyether-ether-ketone and polytetrafluoroethylene blend material is adopted as the sheath layer, and the ceramic silicone rubber is combined, so that a gas phase and solid phase dual flame-retardant mechanism is realized, the high temperature resistance and high flame retardance of the power cable can be maintained under a high temperature environment, and the service life is prolonged.

Inventors

  • CHEN ZHONGQU

Assignees

  • 宁波球冠电缆股份有限公司

Dates

Publication Date
20260505
Application Date
20250528

Claims (10)

  1. 1. The utility model provides a be applied to high temperature resistant fire-retardant type power cable of robot which characterized in that includes: The cable comprises a plurality of conductor layers and insulating layers, wherein each conductor layer is coated with the insulating layer, the insulating layers are made of polytetrafluoroethylene materials, the insulating layers and the conductor layers form an insulating wire core together, and a cable core is formed by twisting a filling layer among the plurality of insulating wire cores; The polyester layer and the low-smoke halogen-free flame-retardant belt are sequentially wrapped outside the cable core and used for isolating the insulating layer; a double shielding layer; the double shielding layers are coated outside the low-smoke halogen-free flame retardant band and used for providing electromagnetic interference protection; the flame-retardant buffer layer is coated outside the double shielding layers, and is made of ceramic silicone rubber materials so as to adapt to high-frequency bending operation of the robot; the aramid fiber reinforced layer is woven outside the flame-retardant buffer layer and is used for enhancing the tensile strength of the cable; The sheath layer is extruded outside the aramid fiber reinforced layer, and the sheath layer is made of halogen-free flame-retardant polyether-ether-ketone and polytetrafluoroethylene blending material.
  2. 2. The high temperature resistant flame retardant type power cable for robots according to claim 1, wherein 10% -30% of nano aluminum hydroxide flame retardant by weight is added into polytetrafluoroethylene material adopted by the insulating layer.
  3. 3. The high temperature resistant flame retardant power cable applied to a robot according to claim 1, wherein the conductor layer is formed by stranding a plurality of silver-plated copper stranded wires with single wire diameters of 0.12 mm.
  4. 4. A high temperature resistant flame retardant power cable applied to a robot according to claim 1 or 3, wherein the conductor layer has a lay ratio of 12 or less and a cross sectional area of 0.5mm 2 to 50mm2, and the surface adhesion is enhanced by plasma treatment after the conductor layer is laid.
  5. 5. The high temperature resistant flame retardant power cable applied to a robot according to claim 1, wherein the thickness of the flame retardant buffer layer is 0.5mm, the ceramic silicone rubber of the flame retardant buffer layer is flame retardant through a solid phase, and the halogen-free flame retardant polyether-ether-ketone material of the sheath layer is flame retardant through a gas phase.
  6. 6. The high temperature resistant flame retardant power cable applied to a robot as claimed in claim 1, wherein the polyester layer and the low smoke zero halogen flame retardant tape are wrapped outside the cable core in an overlapped mode, and the overlap ratio of the polyester layer and the low smoke zero halogen flame retardant tape is more than 20%.
  7. 7. The high temperature resistant flame retardant power cable for a robot of claim 6, wherein said double shielding layer comprises an aluminum magnesium alloy foil tape and a copper nickel plated wire braid, said aluminum magnesium alloy foil tape is extruded over said low smoke halogen free flame retardant tape for reflecting heat radiation, said copper nickel plated wire braid is braided over said aluminum magnesium alloy foil tape for providing electromagnetic interference protection.
  8. 8. The high temperature resistant flame retardant power cable for a robot of claim 7, wherein the braid density of the copper-plated nickel alloy wire braid is 90% or more.
  9. 9. The high temperature resistant flame retardant power cable applied to a robot according to claim 1, wherein the blending ratio of the halogen-free flame retardant polyether-ether-ketone to the polytetrafluoroethylene is 7:3, the thickness is 1.2mm, and the halogen-free flame retardant polyether-ether-ketone and the polytetrafluoroethylene are distributed in a gradient manner through a coextrusion process.
  10. 10. The high temperature resistant flame retardant power cable for a robot of claim 1, wherein the aramid fiber reinforced layer has a braid density of 80% or more.

Description

High-temperature-resistant flame-retardant power cable applied to robot Technical Field The utility model belongs to the field of power cables of robots, and particularly relates to a high-temperature-resistant flame-retardant power cable applied to a robot. Background In modern industrial production environments, in particular applications involving robots and automated production lines, the performance requirements of the cables are becoming more and more stringent. The conventional robot cable is easy to cause problems of aging of an insulating layer and oxidation of a conductor under a high-temperature environment due to the limitation of materials and structures, and the problems can cause resistance to rise and even short circuit phenomenon, so that the normal operation of the robot is affected, and safety accidents can be caused. In order to achieve flame retardant effect, common flame-retardant cables generally use a flame retardant containing halogen (such as PVC). However, such materials release toxic gases upon combustion, which pose a threat to the environment and human health. On the other hand, mica tape wrapped cable has excellent flame retardant property, but is difficult to be suitable for occasions requiring frequent bending due to poor flexibility, and the halogen flame retardant material can provide certain fireproof protection, but the temperature resistance level of the halogen flame retardant material is usually not more than 150 ℃ and cannot meet the application requirements in high-temperature environments. Disclosure of utility model The utility model aims at solving the problems in the prior art, and provides a high-temperature-resistant flame-retardant power cable which has a simple structure and can keep high durability, high flame retardance and stable electrical performance in a high-temperature environment and is applied to a robot. The utility model provides a high temperature resistant flame retardant power cable applied to a robot, which comprises a plurality of conductor layers and insulating layers, wherein each conductor layer is coated with the insulating layer, the insulating layers are made of polytetrafluoroethylene materials, the insulating layers and the conductor layers form an insulating wire core together, and a cable core is formed by twisting a filling layer among the plurality of insulating wire cores; The polyester layer and the low-smoke halogen-free flame-retardant belt are sequentially wrapped outside the cable core and used for isolating the insulating layer; a double shielding layer; the double shielding layers are coated outside the low-smoke halogen-free flame retardant band and used for providing electromagnetic interference protection; the flame-retardant buffer layer is coated outside the double shielding layers, and is made of ceramic silicone rubber materials so as to adapt to high-frequency bending operation of the robot; the aramid fiber reinforced layer is woven outside the flame-retardant buffer layer and is used for enhancing the tensile strength of the cable; The sheath layer is extruded outside the aramid fiber reinforced layer, and the sheath layer is made of halogen-free flame-retardant polyether-ether-ketone and polytetrafluoroethylene blending material. In the high temperature resistant flame retardant power cable applied to the robot, 10-30% of nano aluminum hydroxide flame retardant by weight is added into polytetrafluoroethylene material adopted by the insulating layer. In the high-temperature-resistant flame-retardant power cable applied to the robot, the conductor layer is formed by stranding a plurality of silver-plated copper stranded wires with single wire diameters of 0.12 mm. In the high-temperature-resistant flame-retardant power cable applied to the robot, the twisting pitch diameter ratio of the conductor layer is smaller than or equal to 12, the cross section area is 0.5 mm < 2 > -50mm < 2 >, and the surface adhesive force is enhanced by plasma treatment after the conductor layer is twisted. In the high-temperature-resistant flame-retardant power cable applied to the robot, the thickness of the flame-retardant buffer layer is 0.5mm, the ceramic silicon rubber of the flame-retardant buffer layer is flame-retardant through a solid phase, and the halogen-free flame-retardant polyether-ether-ketone material of the sheath layer is flame-retardant through a gas phase. In the high-temperature-resistant flame-retardant power cable applied to the robot, the polyester layer and the low-smoke halogen-free flame-retardant belt are wrapped outside the cable core in an overlapped mode, and the lap coverage rates of the polyester layer and the low-smoke halogen-free flame-retardant belt are all over 20%. In the high-temperature-resistant flame-retardant power cable applied to the robot, the double shielding layer comprises an aluminum-magnesium alloy foil belt and a copper-nickel-plated wire braiding layer, wherein the aluminum-magnesi