An industrial electronic wire

Abstract

This utility model relates to an industrial electronic wire in the field of electronic wires, comprising a split stepped conductor, an insulating layer, and a composite shielding layer. The insulating layer is disposed on the outside of the split stepped conductor, and the composite shielding layer is disposed on the outside of the split stepped conductor. The split stepped conductor comprises a corrugated conductor, a first copper core, and a second copper core, with the first and second copper cores spirally wound in opposite directions on the surface of the corrugated conductor. The insulating layer comprises a layer of nano-ceramic modified polyolefin, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer, all layered and laminated. The aramid fiber reinforced epoxy resin layer has embedded protrusions. The composite shielding layer comprises a tin-plated copper wire braided mesh, an aluminum foil strip, and a hot-melt conductive adhesive, with the tin-plated copper wire braided mesh and the aluminum foil strip spirally wound alternately. This utility model enhances mechanical strength through the split stepped conductor structure, and improves interface bonding and electromagnetic shielding durability through multi-layer composite and anchoring design.

Description

Technical Field

[0001] This utility model relates to the field of electronic wires, specifically to an industrial electronic wire. Background Technology

[0002] Industrial electronic wires refer to wires used in the industrial field to transmit electrical energy, signals, or data. They are an indispensable component of industrial electrical systems, automated equipment, instruments, and meters.

[0003] Traditional industrial electronic wires often face problems such as conductor fatigue fracture under complex working conditions, insufficient bonding strength between multi-layer insulation and shielding structures, and decay of electromagnetic interference suppression effect over time.

[0004] Existing technologies mostly use a single metal conductor or a simple stranded structure, which has limited tensile deformation resistance and lacks physical anchoring design between the insulation layer and the shielding layer. Long-term bending or vibration can easily lead to interlayer delamination. There is an urgent need for a structural innovation to comprehensively improve mechanical strength, interfacial bonding force and electromagnetic shielding durability. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned deficiencies and provide an industrial electronic wire with a split stepped conductor structure, a multi-layer composite insulation layer with physical anchoring design, and a composite shielding layer supplemented with hot-melt conductive adhesive. This solves the technical problems of poor conductor tensile strength, easy peeling between layers, and easy attenuation of electromagnetic shielding effect in the prior art.

[0006] The objective of this utility model is achieved through the following means:

[0007] An industrial electronic wire includes a split stepped conductor, an insulation layer, and a composite shielding layer. The insulation layer is disposed outside the split stepped conductor, and the composite shielding layer is disposed outside the split stepped conductor. The split stepped conductor includes a corrugated conductor, a first copper core, and a second copper core. The first and second copper cores are spirally wound in opposite directions on the surface of the corrugated conductor. The insulation layer includes a layer of nano-ceramic modified polyolefin, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer, all laminated together. The aramid fiber reinforced epoxy resin layer has embedded bumps that penetrate the fluororubber layer. The composite shielding layer includes a tinned copper wire braided mesh, an aluminum foil strip, and a hot-melt conductive adhesive. The tinned copper wire braided mesh and the aluminum foil strip are installed by alternating spiral winding.

[0008] Furthermore, the surface of the nano-ceramic modified polyolefin layer is laser-etched with microgrooves, forming a mechanically interlocking structure with the aramid fiber-reinforced epoxy resin layer.

[0009] Furthermore, the contact surfaces of the fluororubber layer and the aramid fiber reinforced epoxy resin layer are respectively treated by chemical etching and sandblasting, and the two are bonded together by high-temperature resistant two-component epoxy adhesive or fluorosilicone rubber adhesive. The fluororubber layer provides enhanced protection and improves the high-temperature resistance and corrosion resistance.

[0010] Furthermore, the hot-melt conductive adhesive is uniformly filled into the external gaps between the tin-plated copper wire braid and the aluminum foil strip, and the hot-melt conductive adhesive is used to fill the gaps.

[0011] Furthermore, the surfaces of both the first and second copper cores are formed with micro-nano structures through chemical etching, and the nano-ceramic modified polyolefin layers are respectively disposed on the outer surfaces of the first and second copper cores by thermal fusion. The nano-ceramic modified polyolefin layers improve the insulation protection and ensure the stable operation of the conductor.

[0012] Furthermore, the bump is hemispherical in shape and penetrates the fluororubber layer, and is fixedly connected to the aramid fiber reinforced epoxy resin layer. The bump is used to penetrate the nano-ceramic modified polyolefin layer to form a mechanical self-locking mechanism.

[0013] The beneficial effects of this utility model are:

[0014] This utility model adopts a split stepped conductor structure, in which the first copper core and the second copper core are wound in opposite spirals on the surface of the corrugated conductor, which effectively enhances the conductor's resistance to tensile deformation, better adapts to long-term bending or vibration environments, and extends the service life of the electronic wire.

[0015] By setting a nano-ceramic modified polyolefin layer, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer in the insulation layer, and embedding protrusions that penetrate the fluororubber layer inside the aramid fiber reinforced epoxy resin layer, a multi-layer composite and physical anchoring design of the insulation and shielding layers is achieved. The self-locking protrusions effectively prevent interlayer peeling and improve the durability of electromagnetic shielding, making the electromagnetic interference suppression effect less prone to attenuation during use, ensuring the stability of signal or data transmission, and meeting the high requirements of industrial fields for electronic wires in complex electromagnetic environments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of an industrial electronic wire according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the overall structure of an industrial electronic wire according to this utility model;

[0018] Figure 3 This utility model relates to an industrial electronic wire. Figure 2 Enlarged view of a portion of region A in the middle;

[0019] Figure 4 This is a perspective view of a tinned copper wire braided mesh and aluminum foil strip for industrial electronic wires according to this utility model.

[0020] Figure 5 This is a perspective view of a split-type stepped conductor for industrial electronic wires according to the present invention.

[0021] In the figure, 1. Corrugated conductor; 2. First copper core; 3. Second copper core; 4. Nano-ceramic modified polyolefin layer; 5. Aramid fiber reinforced epoxy resin layer; 6. Bump; 7. Fluororubber layer; 8. Tin-plated copper wire braided mesh; 9. Aluminum foil strip; 10. Hot melt conductive adhesive. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. This embodiment refers to... Figures 1-5 The specific implementation of this industrial electronic wire includes a split stepped conductor, an insulation layer, and a composite shielding layer. The insulation layer is disposed on the outside of the split stepped conductor, and the composite shielding layer is disposed on the outside of the split stepped conductor. The split stepped conductor includes a corrugated conductor 1, a first copper core 2, and a second copper core 3. The first copper core 2 and the second copper core 3 are spirally wound in opposite directions on the surface of the corrugated conductor 1. The insulation layer includes a nano-ceramic modified polyolefin layer 4, an aramid fiber reinforced epoxy resin layer 5, and a fluororubber layer 7, which are stacked together. The aramid fiber reinforced epoxy resin layer 5 has a protrusion 6 embedded inside, and the protrusion 6 penetrates the fluororubber layer 7. The composite shielding layer includes a tinned copper wire braided mesh 8, an aluminum foil strip 9, and a hot-melt conductive adhesive 10. The tinned copper wire braided mesh 8 and the aluminum foil strip 9 are installed by alternating spiral winding.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, the surface of the nano-ceramic modified polyolefin layer 4 is laser-etched with microgrooves, and forms a mechanically interlocked structure with the aramid fiber reinforced epoxy resin layer 5.

[0024] like Figure 2 and Figure 3 As shown, the contact surfaces of the fluororubber layer 7 and the aramid fiber reinforced epoxy resin layer 5 are treated by chemical etching and sandblasting, respectively, and the two are bonded together by high-temperature resistant two-component epoxy adhesive or fluorosilicone rubber adhesive to improve the stability of the connection. The fluororubber layer 7 provides enhanced protection and improves the high-temperature resistance and corrosion resistance.

[0025] like Figure 2 and Figure 3 As shown, the hot-melt conductive adhesive 10 is uniformly filled in the outer gap between the tin-plated copper wire braided mesh 8 and the aluminum foil strip 9. The hot-melt conductive adhesive 10 is used to fill the gap.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the surfaces of the first copper core 2 and the second copper core 3 are formed with micro-nano structures by chemical etching, and the nano-ceramic modified polyolefin layer 4 is respectively set on the outer surface of the first copper core 2 and the second copper core 3 by thermal fusion, which makes the connection reliable. At the same time, the nano-ceramic modified polyolefin layer 4 improves the insulation protection and ensures the stable operation of the conductor.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the bump 6 is hemispherical in shape and penetrates the fluororubber layer 7 and is fixedly connected to the aramid fiber reinforced epoxy resin layer 5. The bump 6 is used to penetrate the nano-ceramic modified polyolefin layer 4 to form a mechanical self-locking mechanism.

[0028] The working principle of an industrial electronic wire in this embodiment is as follows: The conductor part adopts a three-segment copper core stranded structure with different diameters, including a first copper core 2, a second copper core 3 and a corrugated conductor 1. The diameter of the corrugated conductor 1 is larger than that of the first copper core 2 and the second copper core 3, and it extends in a corrugated shape. The first copper core 2 and the second copper core 3 on both sides are wound in opposite spirals on the surface of the corrugated conductor 1 to form a self-locking tensile topology structure, which enhances the tensile performance of the conductor.

[0029] The insulation layer consists of a nano-ceramic modified polyolefin layer 4, an aramid fiber reinforced epoxy resin layer 5, and a fluororubber layer 7 from the inside out. The aramid fiber reinforced epoxy resin layer 5 has embedded protrusions 6 that penetrate into the nano-ceramic modified polyolefin layer 4 to form a mechanical interlock, thereby improving the overall strength and stability of the insulation layer.

[0030] The composite shielding layer is composed of alternating spiral winding of tin-plated copper wire braided mesh 8 and aluminum foil strip 9. The edge of the aluminum foil strip 9 is pre-set with a serrated overlapping groove. When the tin-plated copper wire braided mesh 8 is wound, it is embedded in the groove to form a continuous conductive path. The outer layer is covered with hot melt conductive adhesive 10 to fill the gaps, ensuring the integrity and conductivity of the shielding layer and effectively shielding external electromagnetic interference.

[0031] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An industrial electronic wire comprising a split stepped conductor, an insulating layer provided outside the split stepped conductor, and a composite shielding layer provided outside the split stepped conductor, characterized in that, The split-type stepped conductor includes a corrugated conductor, a first copper core, and a second copper core. The first and second copper cores are spirally wound in opposite directions on the surface of the corrugated conductor. The insulating layer includes a layer of nano-ceramic modified polyolefin, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer, which are stacked and attached. The aramid fiber reinforced epoxy resin layer has protrusions embedded inside, and the protrusions also penetrate the fluororubber layer. The composite shielding layer includes a tin-plated copper wire braided mesh, an aluminum foil strip, and a hot-melt conductive adhesive. The hot-melt conductive adhesive is uniformly filled in the external gaps between the tin-plated copper wire braided mesh and the aluminum foil strip.

2. The electronic thread for industrial use according to claim 1, characterized in that: The surface of the nano-ceramic modified polyolefin layer is laser-etched with microgrooves, forming a mechanically interlocking structure with the aramid fiber reinforced epoxy resin layer.

3. The electronic thread for industrial use according to claim 1, characterized in that: The contact surfaces of the fluororubber layer and the aramid fiber reinforced epoxy resin layer are respectively treated by chemical etching and sandblasting, and the two are bonded together by epoxy glue or fluorosilicone rubber adhesive.

4. The industrial electronic wire according to claim 1, characterized in that: The tin-plated copper wire mesh and aluminum foil strip are installed by alternating spiral winding.

5. An industrial electronic wire according to claim 1, characterized in that: The surfaces of the first copper core and the second copper core are formed with micro-nano structures by chemical etching, and the nano-ceramic modified polyolefin layers are respectively disposed on the outer surfaces of the first copper core and the second copper core by thermal fusion.

6. The industrial electronic wire according to claim 1, characterized in that: The protrusion is hemispherical in shape and is fixedly connected to the aramid fiber reinforced epoxy resin layer.

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