Power line shielding device
By combining ultra-thin metallized fibers, aerogel-based conductive foam, and perforated metal mesh, the interference problem of the unshielded part of the power cord is solved, achieving lightweight power cord and anti-magnetic interference, and improving electromagnetic compatibility and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG CITY HUACHENG ELECTRONICS EQUIP
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-01
AI Technical Summary
In military mobile communication equipment, the unshielded portion of the existing power cord interferes with nearby circuits or cables, resulting in electromagnetic compatibility failure. Furthermore, traditional shielding devices are bulky and easily damaged, affecting the device's lightweight design and strength.
It adopts a combination structure of ultra-thin metallized fiber, aerogel-based conductive foam, hollow metal mesh and shielding cover. The ultra-thin metallized fiber increases the strength of the power cord, the shielding cover isolates magnetic field interference, and the anti-oxidation and waterproof design improves the power cord's anti-magnetic interference and durability.
It achieves lightweight and enhanced strength of the power cord, while effectively isolating external magnetic field interference, maintaining smooth data transmission, preventing device breakage, and improving electromagnetic compatibility.
Smart Images

Figure CN224192320U_ABST
Abstract
Description
A power line shielding device Technical Field
[0001] This utility model relates to the field of power line shielding technology, specifically a power line shielding device. Background Technology
[0002] In current military mobile communication equipment, both AC and DC power supplies are equipped with aviation sockets. After the input through the aviation socket, an EMI filter (Electromagnetic Interference) filter is generally required. However, if the power cable from the aviation socket to the filter input is not shielded, interference will occur. This section of the power cable can interfere with nearby circuits or cables, causing the equipment to fail electromagnetic compatibility tests. Currently, traditional power cable shielding devices are bulky, resulting in poor weight reduction, and are prone to breakage after prolonged use, affecting the strength of the power cable shielding device. Therefore, we propose a power cable shielding device. Summary of the Invention
[0003] The purpose of this invention is to provide a power cord shielding device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A power cord shielding device includes a power cord, the outer surface of which is sleeved with ultra-thin metallized fibers, the inner wall of which is fixedly connected with aerogel-based conductive foam, the inner wall of which is fixedly connected with a perforated metal mesh, and a shielding cover snapped onto one side of the surface of the ultra-thin metallized fibers.
[0006] Preferably, mounting plates are fixedly connected to both sides of the shielding cover, and mounting bolts are threaded through the top surface of the mounting plates.
[0007] Preferably, a rubber pad is provided at the bottom of the mounting bolt, and the rubber pad is made of a flexible material.
[0008] Preferably, a connecting plate is fixedly connected to the top of the shielding cover, and a magnetic plate is provided on the top of the connecting plate.
[0009] Preferably, a semi-circular groove is formed in the middle of the shielding cover, and a sealing ring is provided at the edge of the semi-circular groove.
[0010] Preferably, the perforated metal mesh contains a power core, which is made of copper.
[0011] Preferably, the outer surface of the ultrathin metallized fiber is covered with an anti-oxidation sleeve to increase its anti-oxidation properties.
[0012] Preferably, the outer surface of the shield is covered with a waterproof membrane to increase water resistance, and the bottom of the shield is provided with an anti-oxidation layer.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This power cord shielding device, through the structural design of ultra-thin metallized fibers, aerogel-based conductive foam, hollow metal mesh, and power cord, can increase the strength of the power cord and make it lighter during the use of the power cord by the ultra-thin metallized fibers.
[0015] 2. This power cord shielding device, through the setting of the power cord and the shielding cover, can effectively isolate the external magnetic field interference of the power cord during the personnel's use of the power cord, so as to keep the power cord data normal and thus improve the anti-magnetic interference of the power cord. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 is a three-dimensional cross-sectional view of the present invention;
[0018] Figure 3 is an enlarged view of the structure at point A in Figure 2;
[0019] Figure 4 is a schematic diagram of the shielding cover in this utility model.
[0020] In the diagram: 1. Power cord; 2. Ultra-thin metallized fiber; 3. Aerogel-based conductive foam; 4. Hollowed-out metal mesh; 5. Shielding cover; 6. Mounting plate; 7. Mounting bolt; 8. Connecting plate; 9. Magnetic plate; 10. Sealing ring; 11. Power core. Detailed Implementation
[0021] 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.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0025] Please refer to Figures 1-4, which illustrate a technical solution provided by this utility model:
[0026] A power cord shielding device includes a power cord 1, with an ultra-thin metallized fiber 2 sleeved on the outer surface of the power cord 1, an aerogel-based conductive foam 3 fixedly connected to the inner wall of the ultra-thin metallized fiber 2, a perforated metal mesh 4 fixedly connected to the inner wall of the aerogel-based conductive foam 3, and a power core 11 disposed inside the perforated metal mesh 4, the power core 11 being made of copper.
[0027] In this invention, a shielding cover 5 is snapped onto one side of the surface of the ultra-thin metallized fiber 2.
[0028] By setting the shield 5, the shield 5 can effectively isolate the external magnetic field interference of the power cord 1 during the use of the power cord 1, so as to keep the data of the power cord 1 unobstructed, thereby improving the anti-magnetic interference of the power cord 1.
[0029] In particular, mounting plates 6 are fixedly connected to both sides of the shielding cover 5. The top surface of the mounting plate 6 is threaded with a mounting bolt 7. A rubber pad is provided at the bottom of the mounting bolt 7. The rubber pad is made of a flexible material. A semi-circular groove is opened in the middle of the shielding cover 5. A sealing ring 10 is provided at the edge of the semi-circular groove.
[0030] With the installation of mounting plate 6 and mounting bolt 7, when personnel need to disassemble the shielding cover 5, they can turn the mounting bolt 7 to open the shielding cover 5, thus facilitating the disassembly of the shielding cover 5.
[0031] In particular, a connecting plate 8 is fixedly connected to the top of the shielding cover 5, and a magnetic plate 9 is provided on the top of the connecting plate 8.
[0032] The shielding performance of the shielding cover 5 is further improved by setting up the magnetic plate 9.
[0033] In particular, the outer surface of the ultra-thin metallized fiber 2 is covered with an anti-oxidation sleeve to increase its anti-oxidation properties, the outer surface of the shield 5 is covered with a waterproof membrane to increase its waterproof properties, and the bottom of the shield 5 is provided with an anti-oxidation layer.
[0034] The waterproof performance of shield 5 is improved by the addition of a waterproof membrane and an anti-oxidation layer.
[0035] When using the power cord shielding device of this embodiment, the operator can open the shielding cover 5 by twisting the mounting bolt 7 and mounting plate 6 when installing the power cord 1, and then place the power cord 1 inside the shielding cover 5. This facilitates the power cord 1 to isolate and prevent interference from external electromagnetic fields. Subsequently, the ultra-thin metallized fiber 2 and aerogel-based conductive foam 3 can effectively strengthen the toughness of the power cord 1 and improve its lightweight.
[0036] In this application, the structures and connections not described in detail are all prior art, and their structures and principles are well known, so they will not be described in detail here.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A power cord shielding device comprising a power cord (1), characterized by: The outer surface of the power cord (1) is fitted with an ultra-thin metallized fiber (2), the inner wall of the ultra-thin metallized fiber (2) is fixedly connected with an aerogel-based conductive foam (3), the inner wall of the aerogel-based conductive foam (3) is fixedly connected with a hollow metal mesh (4), and a shielding cover (5) is snapped onto one side of the surface of the ultra-thin metallized fiber (2).
2. The power cord shielding apparatus of claim 1, wherein: The shield (5) is fixedly connected to two sides with mounting plates (6), and the top surface of the mounting plate (6) is threaded with a mounting bolt (7).
3. The power cord shielding device according to claim 2, characterized in that: The bottom of the mounting bolt (7) is provided with a rubber pad, which is made of a flexible material.
4. The power cord shielding device according to claim 1, characterized in that: The top of the shield (5) is fixedly connected to a connecting plate (8), and a magnetic plate (9) is provided on the top of the connecting plate (8).
5. The power cord shielding device according to claim 1, characterized in that: The shield (5) has a semi-circular groove in the middle, and a sealing ring (10) is provided at the edge of the semi-circular groove.
6. The power cord shielding device according to claim 1, characterized in that: The hollow metal mesh (4) is provided with a power core (11) inside, and the power core (11) is made of copper.
7. The power cord shielding apparatus of claim 1, wherein: The outer surface of the ultrathin metallized fiber (2) is covered with an anti-oxidation sleeve to increase its anti-oxidation properties.
8. The power cord shielding apparatus of claim 1, wherein: The outer surface of the shield (5) is covered with a waterproof membrane to increase water resistance, and the bottom of the shield (5) is provided with an anti-oxidation layer.