A shielded anti-interference metal mesh cable

Abstract

The utility model relates to metal net package cable technical field, specifically disclose a shielding anti -interference's metal net package cable, include: copper guide post, copper guide post outside is equipped with insulating layer, insulating layer outside is equipped with metal shielding layer, metal shielding layer outside is equipped with sheath protection layer, sheath protection layer outside is equipped with half open loop hoop, half open loop hoop is equipped with fixed assembly, fixed assembly is fixed to half open loop hoop, half open loop hoop inside is equipped with protection assembly, and protection assembly protects sheath protection layer and copper guide post, through setting up fixed assembly, can be by hand to complete the detachable fixing of half open loop hoop without tools, through setting up protection assembly, realize anti -impact, heat conduction, three -fold protection of preventing erosion, guarantee metal net shielding layer integrity simultaneously, effectively resist electromagnetic interference, let cable adapt strong electromagnetic, high vibration, outdoor chemical industry etc. Many scenes, solve the pain point that traditional cable shielding is easy to be damaged, protection is single, installation and maintenance are inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of metal mesh cable technology, specifically a shielded and interference-resistant metal mesh cable. Background Technology

[0002] In fields such as industrial automation, new energy vehicles, communication base stations, rail transit, and precision electronic equipment, the electromagnetic environment is becoming increasingly complex. Electromagnetic radiation such as high-frequency interference from frequency converters and motors generated by equipment operation, as well as electromagnetic noise such as radio signals from the external space and lightning induction, can easily lead to distortion of control signals and data signals transmitted by cables, and even cause equipment malfunctions and damage to core components. Shielded and anti-interference metal mesh cables have become the core transmission carrier because they can effectively achieve stable transmission of electrical energy or signals and resist electromagnetic interference.

[0003] In existing shielded and interference-resistant metal mesh-sheathed cables, some cable sections require frequent bending or are exposed to heavy impacts. Repeated bending of the cable with equipment can cause fatigue fracture of the metal mesh shielding layer and micro-cracks in the insulation layer. Traditional buffer protective layers are prone to compaction, deformation, or cracking, further aggravating internal structural damage and shortening service life. Instantaneous impact forces can directly cause tearing of the outer sheath, collapse of the metal mesh, or even conductor breakage, leading to equipment downtime. Furthermore, when cables need to be connected, the joint becomes a "weak point" in protection, unable to achieve effective protection, making it highly susceptible to external environmental influences, which can lead to equipment damage and unusability. To address these issues, we propose a shielded and interference-resistant metal mesh-sheathed cable. Utility Model Content

[0004] The purpose of this invention is to provide a shielded and interference-resistant metal mesh-coated cable to address the problems mentioned in the background art. In cable laying scenarios, some cable sections require frequent bending or are exposed to heavy impacts. Repeated bending of the cable with equipment can cause fatigue fracture of the metal mesh shielding layer and micro-cracks in the insulation layer. Traditional buffer protective layers are prone to compaction, deformation, or cracking, further exacerbating internal structural damage and shortening service life. Instantaneous impact forces can directly cause tearing of the outer sheath, collapse of the metal mesh, or even conductor breakage, leading to equipment downtime. Furthermore, when cables need to be connected, the joint becomes a "weak point" in the protection, unable to achieve effective protection, making it highly susceptible to external environmental influences, thus causing equipment damage and unusability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shielded and interference-resistant metal mesh-coated cable, comprising: copper conductors, an insulation layer on the outside of the copper conductors, a metal shielding layer on the outside of the insulation layer, a sheath protection layer on the outside of the metal shielding layer, a semi-open annular clamp on the outside of the sheath protection layer, a fixing component on the semi-open annular clamp, the fixing component fixing the semi-open annular clamp, and a protective component on the inside of the semi-open annular clamp, the protective component protecting the sheath protection layer and the copper conductors.

[0006] The protective component includes a fiber mesh sleeve that is fixedly connected to the inner wall of a semi-open annular clamp. A fixing ring is fixedly connected to the inner side of the fiber mesh sleeve. A reinforcing rib is fixedly connected to the fixing ring. A corrugated buffer tube is fixedly connected to the inner side of the reinforcing rib. A multi-layer composite buffer layer is fixedly connected to the inner wall of the corrugated buffer tube.

[0007] The fixing component includes a nut that is fixedly connected to one side of the semi-open annular clamp. The nut has an internal threaded connection to a rotating screw. The other end of the rotating screw is fixedly connected to a gripping head. A washer is provided between the rotating screw and the semi-open annular clamp on the side near the gripping head.

[0008] The multi-layer composite buffer layer consists of an open-cell foam layer, a thermally conductive silicone rubber layer, and a thermally conductive pressure-sensitive adhesive layer, from the outside to the inside. The thermally conductive pressure-sensitive adhesive layer is positioned close to the protective sheath layer.

[0009] The reinforcing ribs consist of eight ribs that are evenly fixed in a ring on the fixing ring.

[0010] A sealing ring is fixedly connected to the inner side of the edge of the semi-open annular clamp opening.

[0011] The fixing components are provided in four sets, and are symmetrically distributed on the two split segments of the semi-open annular clamp.

[0012] This utility model has at least the following beneficial effects: In use, this utility model allows for the detachable fixing of the semi-open ring clamp by hand without tools by setting a fixing component. The protective component provides triple protection against impact, heat conduction, and corrosion, while ensuring the integrity of the metal shielding layer and effectively resisting electromagnetic interference. This makes the cable suitable for various scenarios such as strong electromagnetic fields, high vibration, and outdoor chemical environments, solving the pain points of traditional cables such as easily damaged shielding, single protection, and inconvenient installation and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the semi-open annular clamp of this utility model; Figure 3 This is a cross-sectional view of the semi-open annular clamp of this utility model; Figure 4This is a top view sectional view of the semi-open annular clamp of this utility model; Figure 5 This is a schematic diagram of the internal structure of the multi-layer composite buffer layer of this utility model; Figure 6 This is a schematic diagram of the internal structure of the protective layer of the sheath of this utility model.

[0014] In the diagram: 1. Protective sheath layer; 2. Semi-open ring clamp; 3. Fixing component; 31. Nut; 32. Rotating screw; 33. Grip head; 34. Washer; 4. Protective component; 41. Fiber mesh sleeve; 42. Fixing ring; 43. Reinforcing rib; 44. Corrugated buffer tube; 45. Multi-layer composite buffer layer; 46. Open-cell foam layer; 47. Thermally conductive silicone rubber layer; 48. Thermally conductive pressure-sensitive adhesive layer; 5. Sealing ring; 6. Copper guide post; 7. Insulation layer; 8. Metal shielding layer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 Please see Figures 1 to 6 This utility model provides a technical solution: a shielded and anti-interference metal mesh-sheathed cable, comprising: copper guide posts 6, an insulation layer 7 on the outside of the copper guide posts, a metal shielding layer 8 on the outside of the insulation layer 7, a sheath protective layer 1 on the outside of the metal shielding layer 8, a semi-open annular clamp 2 on the outside of the sheath protective layer 1, a fixing component 3 on the semi-open annular clamp 2 for fixing the semi-open annular clamp 2, and a protective component 4 on the inside of the semi-open annular clamp 2 for protecting the sheath protective layer 1 and the copper guide posts 6. The semi-open annular clamp 2 is detachable and is made of glass fiber reinforced ABS material. Its annular inner diameter matches the outer diameter of the sheath protective layer 1, and its axial length matches the joint and local protection requirements of the sheath protective layer 1. The fixing component 3 is used to lock and fix the two split halves of the semi-open annular clamp 2 to prevent the clamp from loosening or shifting under cable vibration or external force. The inner side of the semi-open annular clamp 2 is also provided with a protective component 4 that is completely fitted to the outer contour of the protective sleeve layer 1. The protective component 4 is used to provide triple protection for the protective sleeve layer 1, namely, "impact buffering, heat conduction and environmental corrosion prevention", so as to avoid damage to the metal shielding layer 8 or overheating of the copper guide post 6.

[0017] The protective component 4 includes a fiber mesh sleeve 41 fixedly connected to the inner wall of the semi-open annular clamp 2. A fixing ring 42 is fixedly connected to the inner side of the fiber mesh sleeve 41, and a reinforcing rib 43 is fixedly connected to the fixing ring 42. A corrugated buffer tube 44 is fixedly connected to the inner side of the reinforcing rib 43, and a multi-layer composite buffer layer 45 is fixedly connected to the inner wall of the corrugated buffer tube 44. The fiber mesh sleeve 41 is woven from high-strength glass fiber, possessing excellent tear and tensile strength, and can resist damage to the internal structure from external scratches. The fixing ring 42 is made of nylon, and its inner wall has an integrally formed mounting groove for the reinforcing rib 43 along the circumferential direction. The reinforcing rib 43 is a glass fiber reinforced resin rib with a tensile strength ≥800MPa and an elastic modulus ≥40GPa, possessing lightweight and high support strength, and can prevent the semi-open annular clamp 2 from being deformed by compression. The corrugated buffer tube 44 is made of high-density polyethylene with an axial elongation rate ≥15% and a radial compression rate ≥20%, and can absorb impact energy and vibration through its own corrugated structure. The multi-layer composite buffer layer 45 is completely fitted to the surface of the protective layer 1 without any gaps.

[0018] The fixing component 3 includes a nut 31 fixedly connected to one side of the semi-open annular clamp 2. A rotating screw 32 is internally threaded onto the nut 31, and a gripping head 33 is fixedly connected to the other end of the rotating screw 32. A washer 34 is provided between the rotating screw 32 and the semi-open annular clamp 2 near the gripping head 33. The nut 31 is integrally injection molded with the outer wall of one of the split segments and is made of brass. The rotating screw 32 is made of 304 stainless steel, with one end penetrating the other split segment of the semi-open annular clamp 2 and extending to the outside. The gripping head 33 has a butterfly-shaped structure with diamond-shaped anti-slip texture on its surface, facilitating hand-tightening without tools. The washer 34 is made of EPDM rubber, with an inner diameter matching the screw diameter. Its elastic deformation eliminates gaps during screw tightening, preventing damage to the clamp surface from the screw and providing anti-loosening protection.

[0019] The multi-layer composite buffer layer 45 comprises, from the outside to the inside, an open-cell foam layer 46, a thermally conductive silicone rubber layer 47, and a thermally conductive pressure-sensitive adhesive layer 48. The thermally conductive pressure-sensitive adhesive layer 48 is positioned close to the sheath protective layer 1. The layers are bonded together with thermally conductive adhesive, eliminating interface gaps. The open-cell foam layer 46 is made of thermally conductive polyethylene open-cell foam with interconnected micropores, which can provide buffering while aiding air convection for heat dissipation. The thermally conductive silicone rubber layer 47 is made of silicone rubber with added alumina filler, possessing excellent thermal conductivity and high-temperature resistance. It can absorb impact vibrations through elastic deformation and rapidly transfer heat generated by the cable. The thermally conductive pressure-sensitive adhesive layer 48 is tightly fitted to the sheath protective layer 1, filling the tiny gaps on the surface of the sheath protective layer 1, eliminating the air insulation layer, and significantly improving the efficiency of heat transfer from the cable to the buffer layer.

[0020] Eight reinforcing ribs 43 are evenly fixed to the fixing ring 42 in a ring shape. The included angle between the centers of two adjacent reinforcing ribs 43 is 45° to ensure a uniform distribution of the supporting force on the corrugated buffer tube 44. The axial length of the reinforcing ribs 43 is the same as that of the corrugated buffer tube 44, and the two ends of the reinforcing ribs 43 are flush with the two ends of the corrugated buffer tube 44 to prevent the ends of the reinforcing ribs 43 from protruding and scratching the protective sleeve layer 1. The contact area between the buffer layer reinforcing ribs 43 and the corrugated buffer tube 44 is also wrapped with a silicone sleeve, which can reduce frictional damage between the reinforcing ribs 43 and the corrugated buffer tube 44, and at the same time improve the buffering effect during vibration transmission.

[0021] A sealing ring 5 is fixedly connected to the inner edge of the opening of the semi-open annular clamp 2. The sealing ring 5 is made of EPDM rubber, which has excellent elasticity and weather resistance. The cross-section of the sealing ring 5 is semi-circular, and its diameter is adapted to the width of the opening gap after the two split halves of the semi-open annular clamp 2 are closed. When the semi-open annular clamp 2 is locked by the fixing component 3, the sealing ring 5 can be compressed to completely fill the opening gap, achieving a waterproof and dustproof seal and preventing rainwater, dust or corrosive media from entering the clamp and eroding the metal mesh shielding layer.

[0022] The fixing components 3 are provided in four sets, symmetrically distributed on the two segments of the semi-open annular clamp 2. Each segment has two sets of fixing components 3, which are located near the two axial ends of the semi-open annular clamp 2. The symmetrical distribution of the fixing components 3 ensures that the two segments are evenly stressed after the semi-open annular clamp 2 is closed, avoiding deformation of the clamp due to excessive local stress or gaps due to insufficient stress. At the same time, the four sets of fixing components 3 further enhance the clamp's anti-loosening ability, maintaining stable fixation even in high-frequency vibration scenarios.

[0023] When using shielded, interference-resistant metal mesh-sheathed cables, first select the appropriate cable specifications based on the frequent bending scenarios, strong electromagnetic interference environments, and electrical requirements. Before installation, check the appearance of the sheath protective layer 1 and the metal shielding layer 8 for defects, and cut them neatly according to the laying path length using a dedicated cable cutter. Next, install the protective components by fastening the semi-open ring clamp 2 onto the part of the cable that needs protection, and then tighten the rotating screws 32 of the four sets of fixing components 3 diagonally to complete the fixation. At the same time, regularly check the integrity of the protective components 4, and replace them in time if they are damaged or deformed beyond the standard. Perform routine maintenance to ensure the cable's shielding and interference-resistant performance and long-term stable operation.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shielded, interference-resistant metal mesh-insulated cable, comprising: A copper guide post, characterized in that: an insulating layer is provided on the outer side of the copper guide post, a metal shielding layer is provided on the outer side of the insulating layer, a protective sleeve is provided on the outer side of the metal shielding layer, a semi-open annular clamp is provided on the outer side of the protective sleeve, a fixing component is provided on the semi-open annular clamp, the fixing component fixes the semi-open annular clamp, and a protective component is provided on the inner side of the semi-open annular clamp, the protective component protects the protective sleeve and the copper guide post.

2. The shielded, interference-resistant metal mesh cable according to claim 1, characterized in that: The protective component includes a fiber mesh sleeve fixedly connected to the inner wall of a semi-open annular clamp. A fixing ring is fixedly connected to the inner side of the fiber mesh sleeve. A reinforcing rib is fixedly connected to the fixing ring. A corrugated buffer tube is fixedly connected to the inner side of the reinforcing rib. A multi-layer composite buffer layer is fixedly connected to the inner wall of the corrugated buffer tube.

3. The shielded, interference-resistant metal mesh cable according to claim 1, characterized in that: The fixing component includes a nut fixedly connected to one side of the semi-open annular clamp, a rotating screw connected internally to the nut, a gripping head fixedly connected to the other end of the rotating screw, and a washer provided between the rotating screw and the semi-open annular clamp on the side near the gripping head.

4. The shielded, interference-resistant metal mesh cable according to claim 2, characterized in that: The multi-layer composite buffer layer comprises, from the outside to the inside, an open-cell foam layer, a thermally conductive silicone rubber layer, and a thermally conductive pressure-sensitive adhesive layer, with the thermally conductive pressure-sensitive adhesive layer positioned close to the protective sheath layer.

5. The shielded, interference-resistant metal mesh cable according to claim 2, characterized in that: The reinforcing ribs are provided in eight pieces and are evenly fixed in a ring on the fixing ring.

6. The shielded, interference-resistant metal mesh cable according to claim 1, characterized in that: A sealing ring is fixedly connected to the inner side of the edge of the semi-open annular clamp opening.

7. The shielded, interference-resistant metal mesh cable according to claim 1, characterized in that: The fixing components are provided in four groups and are symmetrically distributed on the two split segments of the semi-open annular clamp.

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