Filtering magnetic ring for preventing electromagnetic interference of power line

Abstract

The utility model relates to the technical field of filtering magnetic rings, in particular to a filtering magnetic ring for preventing electromagnetic interference of a power line, which comprises a magnetic ring shell, a carbon fiber sleeve is arranged on the surface of the magnetic ring shell, the power line penetrates through the middle of the magnetic ring shell, and a positioning structure is fixedly arranged on the side surface of the end part of the magnetic ring shell. The side face of the end of the magnetic ring shell is fixedly connected with a positioning ring, and the bottom of the magnetic ring shell is fixedly connected with a hinge rotating shaft. The magnetic ring assembly has the beneficial effects that the detachable magnetic ring structure is realized, a power line can be quickly and directly arranged in the magnet layer, the structure is simple, disassembly and replacement are convenient, the practicability is high, through the arrangement of the reinforcing ribs and the filling layer, the anti-pressure ability of the magnetic ring assembly is improved, the service life of equipment is prolonged, and through the arrangement of the magnetic ring body, the shielding net layer and the magnet layer, the service life is prolonged. High-frequency noise signals carried by the power line can be effectively attenuated, it is guaranteed that electronic equipment is stable in a complex electromagnetic environment, and electromagnetic interference can be effectively prevented through multiple protective layers.

Description

Technical Field

[0001] This utility model relates to the field of filter magnetic ring technology, specifically a filter magnetic ring for protecting power lines from electromagnetic interference. Background Technology

[0002] Filtering ferrite beads, also known as ferrite beads, are passive components used to suppress electromagnetic interference (EMI) and radio frequency interference (RFI). They are typically made of magnetic materials such as NiZn or MnZn ferrites, capable of absorbing high-frequency noise and thus filtering signals. Their use is becoming increasingly widespread, playing a crucial role in handling harmonic interference. For power lines, the ferrite beads are usually installed at the power input end of electronic devices, near the power socket. However, existing filtering ferrite beads have limited functionality. Power lines, as energy transmission channels, are highly susceptible to external electromagnetic interference (EMI), and electromagnetic noise generated by the device itself can also leak out through the power line, affecting surrounding equipment. Utility Model Content

[0003] The purpose of this invention is to provide a filter magnetic ring for electromagnetic interference protection of power lines, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a filter magnetic ring for electromagnetic interference protection of power lines, comprising a magnetic ring shell, a carbon fiber sleeve on the surface of the magnetic ring shell, a power line passing through the middle of the magnetic ring shell, a wing fixedly connected to the side of the magnetic ring shell, a slot provided on the side of the magnetic ring shell, and a buckle fixedly provided at the top of the slot, the buckle engaging with the wing, a positioning structure fixedly provided on the end side of the magnetic ring shell, a positioning ring fixedly connected to the end side of the magnetic ring shell, and a hinge shaft fixedly connected to the bottom of the magnetic ring shell.

[0005] Preferably, multiple sets of support ribs are fixedly connected to the inner side of the magnetic ring shell, and a filling layer is provided between the support ribs. An inner protective layer is provided on the side of the support ribs, and a shielding mesh layer is installed on the inner side of the inner protective layer. The magnetic ring body is installed on the inner side of the shielding mesh layer.

[0006] Preferably, the positioning structure includes a fixing block and a docking block, which are respectively disposed on both sides of the magnetic ring shell, and the side of the docking block is provided with fixing bolts.

[0007] Preferably, the positioning ring has a magnetic suction hole on its side, a mating magnet is provided on the inner side of the magnetic suction hole, a corrugated ring is fixedly provided on the inner side of the positioning ring, and a waterproof layer is fixedly connected to the side of the corrugated ring.

[0008] Preferably, a magnet layer is installed on the inner side of the magnetic ring body, the inner side of the magnet layer is bonded to the waterproof layer, and the filling layer is filled with ceramic material.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a detachable magnetic ring structure with winglets, buckles, fixing blocks, fixing bolts and docking blocks on the magnetic ring shell, the power cord can be quickly and directly placed in the magnet layer. The structure is simple, easy to disassemble and replace, and highly practical. The setting of reinforcing ribs and filling layers improves the compressive strength of the magnetic ring assembly and extends the service life of the equipment. The setting of magnetic ring body, shielding mesh layer and magnet layer can effectively attenuate the high-frequency noise signal carried by the power cord, ensuring the stability of electronic equipment in complex electromagnetic environments. Moreover, the multiple protective layers can effectively protect against electromagnetic interference. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0012] Figure 3 This is a schematic cross-sectional view of the structure of this utility model.

[0013] In the diagram: 1. Magnetic ring outer shell; 2. Carbon fiber sleeve; 3. Power cord; 4. Wing; 5. Slot; 6. Buckle; 7. Positioning ring; 8. Hinge shaft; 9. Support rib; 10. Filling layer; 11. Inner protective layer; 12. Shielding mesh layer; 13. Magnetic ring body; 14. Fixing block; 15. Connecting block; 16. Fixing bolt; 17. Magnetic suction hole; 18. Connecting magnet; 19. Corrugated ring; 20. Waterproof layer; 21. Magnet layer. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Example 1: Please refer to Figures 1-3This utility model provides a technical solution: a filter magnetic ring for electromagnetic interference protection of power lines, including a magnetic ring shell 1, a carbon fiber sleeve 2 on the surface of the magnetic ring shell 1, a power line 3 passing through the middle of the magnetic ring shell 1, a wing 4 fixedly connected to the side of the magnetic ring shell 1, a slot 5 opened on the side of the magnetic ring shell 1, and a buckle 6 fixedly provided at the top of the slot 5, the buckle 6 engaging with the wing 4, a positioning structure fixedly provided at the end side of the magnetic ring shell 1, a positioning ring 7 fixedly connected to the end side of the magnetic ring shell 1, and a hinge shaft 8 fixedly connected to the bottom of the magnetic ring shell 1. The design of the wing 4 and the buckle 6 is simple and facilitates the docking and fixing of the magnetic ring shell 1.

[0016] Multiple sets of support ribs 9 are fixedly connected to the inner side of the magnetic ring shell 1, and a filling layer 10 is provided between the support ribs 9. An inner protective layer 11 is provided on the side of the support ribs 9. A shielding mesh layer 12 is installed on the inner side of the inner protective layer 11, and a magnetic ring body 13 is installed on the inner side of the shielding mesh layer 12. The support ribs 9 and the filling layer 10 are provided to improve the compressive strength of the magnetic ring assembly and extend the service life of the equipment.

[0017] The positioning structure includes a fixing block 14 and a docking block 15. The fixing block 14 and the docking block 15 are respectively arranged on both sides of the magnetic ring shell 1. The side of the docking block 15 is fitted with a fixing bolt 16. The fixing block 14, the fixing bolt 16 and the docking block 15 cooperate to further improve the fixing effect between the magnetic ring shell 1 and the power line 3.

[0018] The positioning ring 7 has a magnetic suction hole 17 on its side. A mating magnet 18 is provided on the inner side of the magnetic suction hole 17. A corrugated ring 19 is fixedly provided on the inner side of the positioning ring 7. A waterproof layer 20 is fixedly connected to the side of the corrugated ring 19. The corrugated ring 19 and the waterproof layer 20 are set to prevent the power cord 3 from being pulled and to prevent water from entering the structure.

[0019] A magnet layer 21 is installed on the inner side of the magnetic ring body 13. The inner side of the magnet layer 21 is bonded to the waterproof layer 20. The filling layer 10 is filled with ceramic material.

[0020] In use, the magnetic ring housing 1 is unfolded by hinge shaft 8, and the power cord 3 is directly placed in the magnet layer 21. Then, the magnetic ring housing 1 is fixed by the structure of the wing 4, buckle 6, fixing block 14 and docking block 15. Tighten the fixing bolt 16 to complete the fixing of the magnetic ring housing 1. During maintenance, loosen the fixing bolt 16, the wing 4 is opened on the side of the buckle 6, the hinge shaft 8 is rotated to open the magnetic ring housing 1, and the inner protective layer 11 and other structural layers are removed for inspection in sequence.

[0021] 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 filter magnetic ring for power line electromagnetic interference protection, characterized in that: The utility model relates to a magnetic ring shell (1) is provided with carbon fiber sleeve (2) on the surface, the middle of magnetic ring shell (1) is connected with power line (3) through, the side of magnetic ring shell (1) is fixedly connected with fin (4), the side of magnetic ring shell (1) is seted up with clamping groove (5), and the top of clamping groove (5) is fixedly provided with buckle (6), and buckle (6) is matched with the clamping of fin (4), the end side of magnetic ring shell (1) is fixedly provided with positioning structure, the end side of magnetic ring shell (1) is fixedly connected with positioning ring (7), the bottom of magnetic ring shell (1) is fixedly connected with hinge pivot (8). ​ 2. The filter magnetic ring for power line anti-electromagnetic interference according to claim 1, characterized in that: The inner side of the magnetic ring shell (1) is fixedly connected with a plurality of support ribs (9), and the support ribs (9) are provided with a filling layer (10) therebetween, the side of the support rib (9) is provided with an inner protective layer (11), the inner side of the inner protective layer (11) is fitted with a shielding mesh layer (12), and the inner side of the shielding mesh layer (12) is fitted with a magnetic ring body (13).

3. The filter magnetic ring for power line anti-electromagnetic interference according to claim 1, characterized in that: The positioning structure includes a fixed block (14) and a butt block (15), the fixed block (14) and the butt block (15) are respectively provided on both sides of the magnetic ring shell (1), and the side of the butt block (15) is fitted with a fixed bolt (16).

4. The filter magnetic ring for power line anti-electromagnetic interference according to claim 1, characterized in that: The side of the positioning ring (7) is provided with a magnetic attraction hole (17), the inner side of the magnetic attraction hole (17) is fitted with a butt magnet (18), the inner side of the positioning ring (7) is fixedly provided with a corrugated ring (19), and the side of the corrugated ring (19) is fixedly connected with a waterproof layer (20).

5. The filter magnetic ring for power line anti-electromagnetic interference according to claim 2, characterized in that: The inner side of the magnetic ring body (13) is fitted with a magnet layer (21), the inner side of the magnet layer (21) is adhesively connected with the waterproof layer (20), and the filling layer (10) is filled with a ceramic material.

Images