Structure for blocking electromagnetic coupling of inductor

By using isolation frames and interlaced partition structures in the inductors, combined with metal shielding layers, the electromagnetic coupling problem between the inductors is solved, and the stable operation of the inductors is achieved.

CN223140550UActive Publication Date: 2025-07-22HUAIAN SANTUO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202422393957.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-07-22
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

In complex electronic systems, multiple inductors are easily coupled through electromagnetic fields when arranged close to each other, resulting in signal interference, performance degradation and even system failure.

Method used

The inductor body is divided into independent chambers by isolating frames and interlaced cross-dividing plates and vertical partitions, and a metal shielding layer is set in the isolation frame. The inductor body is locked and positioned by screws and blocks, increasing the difference in space distance and angles, and reducing direct contact and mechanical stress.

Benefits of technology

It realizes physical isolation between the inductor bodies, effectively absorbs or reflects electromagnetic fields, reduces the electromagnetic coupling effect, avoids direct electromagnetic coupling paths, and ensures stable inductor performance.

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Abstract

The utility model discloses an inductor electromagnetic coupling blocking structure which comprises an isolation frame and inductor bodies, transverse partition plates and longitudinal partition plates which are mutually staggered are installed in the isolation frame, the space in the isolation frame is divided into a plurality of cavities by the transverse partition plates and the longitudinal partition plates, and the inductor bodies are placed in the cavities. A screw rod is screwed on a bottom plate of the isolation frame in a threaded mode, and a pressing block is rotationally connected to the screw rod and used for pressing the inductor body. The inductor bodies are arranged in the different cavities respectively, physical isolation between the inductor bodies is achieved, meanwhile, the metal shielding layer is arranged, an electromagnetic field generated by the inductor can be effectively absorbed or reflected, and therefore the influence of the electromagnetic field on the surrounding inductor is reduced, the inductor bodies are arranged in the isolation frame in a staggered mode, and the inductor bodies are arranged in the isolation frame in a staggered mode. The space distance and the angle difference between the inductor bodies are increased, so that the electromagnetic coupling effect is reduced, and a direct electromagnetic coupling path is prevented from being generated between the inductor bodies.
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Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to an electromagnetic coupling structure of a blocking inductor. Background Art

[0002] In complex electronic systems, inductors are common circuit components and are widely used in filtering, energy storage, signal transmission, etc. However, when multiple inductors are placed close together, they are prone to coupling through electromagnetic fields, leading to signal interference, performance degradation, and even system failure.

[0003] To this end, we propose a blocking inductor electromagnetic coupling structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a blocking inductor electromagnetic coupling structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blocking inductor electromagnetic coupling structure comprises an isolation frame and an inductor body, wherein the isolation frame is provided with mutually staggered transverse partitions and longitudinal partitions, and the transverse partitions and longitudinal partitions divide the space in the isolation frame into a plurality of chambers, and the inductor body is placed in the chamber, and a screw is threadedly screwed on the bottom plate of the isolation frame, and a pressure block is rotatably connected to the screw, and the pressure block is used to press the inductor body.

[0007] In a further embodiment, the transverse partitions and the longitudinal partitions are vertically staggered, and a plurality of slots are provided on the end surfaces of the transverse partitions and the longitudinal partitions that are connected to each other.

[0008] In a further embodiment, a plurality of ridges are provided on the inner walls of the surrounding panels of the isolation frame, and both ends of the transverse partition and the longitudinal partition are provided with embedding grooves matching the ridges.

[0009] In a further embodiment, a plurality of through holes distributed in a matrix are formed on the bottom plate of the isolation frame, the pins of the inductor body pass through the bottom of the through holes, and the screws pass through the through holes and are threadedly connected thereto.

[0010] In a further embodiment, a flexible spacer is connected to the lower surface of the pressing block.

[0011] In a further embodiment, the isolation frame, the transverse partition and the longitudinal partition are all composed of a multi-layer structural plate, and the multi-layer structural plate includes a non-conductive core layer and a metal shielding layer coated on the inner and outer surfaces of the non-conductive core layer.

[0012] In a further embodiment, the inductor bodies are staggered within the cavity.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model forms independent chambers through the isolation frame, horizontal partition plates and vertical partition plates, so that multiple inductor bodies are located in different chambers respectively, realizing physical isolation between the inductor bodies. At the same time, a metal shielding layer is provided, which can effectively absorb or reflect the electromagnetic fields generated by the inductors, thereby reducing the influence of the electromagnetic fields on the surrounding inductors. And the inductor bodies are locked and positioned by pressing blocks to ensure that appropriate gaps are maintained between the inductor bodies and the chamber walls and the metal shielding layer to reduce direct contact and mechanical stress. At the same time, the inductor bodies are staggered in the isolation frame, increasing the spatial distance and angular difference between the inductor bodies, thereby reducing the electromagnetic coupling effect and avoiding the generation of direct electromagnetic coupling paths between them. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the present utility model after removing the inductor bodies;

[0017] Figure 3 is a schematic bottom view structural diagram of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the screw and the pressing block assembly of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the horizontal partition plate and the vertical partition plate assembly of the present utility model;

[0020] Figure 6 is a schematic sectional structural diagram of the structural layers of the isolation frame, the horizontal partition plate and the vertical partition plate of the present utility model.

[0021] In the figure: 1. Isolation frame; 2. Horizontal partition plate; 3. Vertical partition plate; 4. Inductor body; 41. Pin; 5. Screw; 6. Pressing block; 7. Flexible spacer; 8. Perforation; 9. Slot; 10. Embedded groove; 11. Non-conductive core layer; 12. Metal shielding layer; 13. Convex rib. Detailed Embodiments

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1-2 , a structure for blocking electromagnetic coupling of an inductor, which includes an isolation frame 1 and an inductor body 4. In the isolation frame 1, there are installed cross partitions 2 and longitudinal partitions 3 that intersect with each other, and the cross partitions 2 and the longitudinal partitions 3 divide the space inside the isolation frame 1 into several chambers. The inductor body 4 is placed in the chamber and is physically separated from other inductor bodies 4 by the partitions. A screw rod 5 is threadedly connected to the bottom plate of the isolation frame 1, and a pressing block 6 is rotatably connected to the screw rod 5. When the screw rod 5 rotates, it drives the pressing block 6 to move up and down, so that the pressing block 6 loosens or presses the inductor body 4, locks and fixes the inductor body 4, and ensures that an appropriate gap is maintained between the inductor body 4 and the chamber wall to reduce direct contact and mechanical stress.

[0026] Please refer to Figure 6, in order to improve the shielding effect, it is set that the isolation frame 1, the transverse partition 2 and the longitudinal partition 3 are all composed of multiple structural plates. The multiple structural plates include a non-conductive core layer 11 and metal shielding layers 12 coated on the inner and outer surfaces of the non-conductive core layer 11. The material of the non-conductive core layer 11 can be plastic or ceramic, and the material of the metal shielding layer 12 can be copper foil, aluminum foil or metal mesh. The metal shielding layer 12 can effectively absorb or reflect the electromagnetic field generated by the inductor, thereby reducing the influence of the electromagnetic field on the surrounding inductors.

[0027] Furthermore, the inductor bodies 4 are arranged staggered in the chamber, so that adjacent inductor bodies 4 are obliquely staggered, increasing the spatial distance and angular difference between the inductor bodies 4, thereby reducing the electromagnetic coupling effect and avoiding the generation of a direct electromagnetic coupling path between them.

[0028] Please refer to Figure 1-2 and Figure 5 , in order to facilitate the adjustment of the size of the chamber according to the sizes of different inductors, it is set that the transverse partition 2 and the longitudinal partition 3 are vertically staggered, and a plurality of slots 9 are opened on the end faces where the transverse partition 2 and the longitudinal partition 3 are butted. The slots 9 are equidistantly distributed along the length direction of the transverse partition 2. So that when the longitudinal partition 3 is inserted into the slots 9 at different positions, the size of the chamber can be adjusted. At the same time, a plurality of vertical ridges 13 are provided on the inner wall of the surrounding plate of the isolation frame 1, and vertical grooves 10 that are matched with the ridges 13 are opened at both ends of the transverse partition 2 and the longitudinal partition 3. When the transverse partition 2 and the longitudinal partition 3 are stuck inside the isolation frame 1, the grooves 10 are butted against the ridges 13, thereby limiting the transverse partition 2 and the longitudinal partition 3.

[0029] Please refer to Figure 3 , considering that when inductor bodies 4 of different shapes or sizes are placed in the chamber, the screw 5 needs to adjust its position, it is set that a plurality of through holes 8 distributed in a matrix are opened on the bottom plate of the isolation frame 1, which facilitates heat dissipation. At the same time, the pins 41 of the inductor body 4 penetrate to the lower part of the through holes 8, and the screw 5 penetrates through the through holes 8 and is threadedly connected thereto. The screw 5 can be screwed into the through holes 8 at different positions, and the flexibility of use is higher.

[0030] Please refer to Figure 4 , in order to reduce the damage of the pressing block 6 to the inductor body 4, a flexible spacer 7 is connected to the lower surface of the pressing block 6. The flexible spacer 7 is made of silica gel or rubber material, so as to be separated between the pressing block 6 and the inductor body 4 and reduce the pressing damage to the inductor body 4.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0032] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for blocking electromagnetic coupling of an inductor, comprising an isolation frame (1) and an inductor body (4), characterized in that: Inside the isolation frame (1), there are horizontally arranged partition plates (2) and vertically arranged partition plates (3) that intersect with each other. The horizontally arranged partition plates (2) and the vertically arranged partition plates (3) divide the space inside the isolation frame (1) into several chambers. The inductor body (4) is placed in the chambers. On the bottom plate of the isolation frame (1), a screw (5) is screwed, and a pressing block (6) is rotatably connected to the screw (5). The pressing block (6) is used to press the inductor body (4).

2. The electromagnetic coupling structure of a blocking inductor according to claim 1, wherein: The horizontally arranged partition plates (2) and the vertically arranged partition plates (3) are vertically intersected, and a plurality of slots (9) are provided on the end faces where the horizontally arranged partition plates (2) and the vertically arranged partition plates (3) are butted against each other.

3. The electromagnetic coupling structure of a blocking inductor according to claim 1, characterized in that: On the inner walls of the surrounding plates of the isolation frame (1), there are a plurality of convex ribs (13), and at both ends of the horizontally arranged partition plates (2) and the vertically arranged partition plates (3), there are fitting grooves (10) that match the convex ribs (13).

4. A blocking inductor electromagnetic coupling structure according to claim 1, characterized in that: On the bottom plate of the isolation frame (1), a plurality of through holes (8) are arranged in a matrix. The pins (41) of the inductor body (4) penetrate to the lower part of the through holes (8), and the screw (5) penetrates the through holes (8) and is threadedly connected thereto.

5. The electromagnetic coupling structure of a blocking inductor according to claim 1, wherein: A flexible spacer (7) is connected to the lower surface of the pressing block (6).

6. The electromagnetic coupling structure of a blocking inductor according to claim 1, wherein: The isolation frame (1), the horizontally arranged partition plates (2) and the vertically arranged partition plates (3) are all composed of multiple structural plates. The multiple structural plates include a non-conductive core layer (11) and metal shielding layers (12) coated on the inner and outer surfaces of the non-conductive core layer (11).

7. A structure for blocking electromagnetic coupling of an inductor according to claim 1, characterized in that: The inductor bodies (4) are arranged in a staggered manner in the chambers.