A toroidal vertical inductor

Abstract

This utility model relates to the field of inductor technology, and more particularly to a toroidal vertical inductor. The toroidal vertical inductor of this utility model uses a pair of bases to enclose the magnetic core, achieving fixation and positioning of the magnetic core. The coil is directly wound on the ring structure formed by the two bases, facilitating subsequent processing and avoiding the tension of the coil winding directly acting on the magnetic core, thus ensuring the overall performance of the inductor and fixing the relative position of the magnetic core and coil. Furthermore, the terminals are integrally set with the bases, which relatively fixes the terminals and the magnetic core, ensuring a stable connection between the coil's wiring terminals and the inductors. In addition, the terminals are compatible with both surface-mount and through-hole connection methods, improving adaptability.

Description

Technical Field

[0001] This utility model relates to the field of inductor technology, and in particular to a toroidal vertical inductor. Background Technology

[0002] Closed-cell toroidal inductors are the most widely used type of inductor on the market, mostly in a vertical design. When manufacturing these inductors, a base is typically chosen to increase the distance between the inductor and the PCB, thus improving insulation. While commonly used bases can secure the electrode leads and increase the distance from the PCB, they primarily rely on the connection between the copper wire ends of the magnetic ring coil and the base to maintain the connection. Therefore, they cannot fully secure the magnetic ring coil itself, making it prone to slippage and easily causing the coil to tilt. Although this doesn't affect functionality, it impacts the overall appearance and the installation of other components, thus hindering the overall inductor production. Furthermore, incorrectly installed magnetic ring coils, besides increasing production costs, are also prone to damage at the connection between the copper wire ends and the base during use. Additionally, the toroidal ferrite cores commonly used in existing inductors are brittle materials, highly sensitive to mechanical stress. Directly winding copper wire can cause localized compressive or tensile stress in the core due to winding tension, leading to micro-cracks or even breakage on the core surface. Stress can also degrade magnetic properties. It alters the grain structure of ferrite cores, thereby affecting their magnetic performance. For example, stress may reduce permeability, causing a decrease in the magnetic flux density of the core; or it may increase magnetic losses, leading to reduced efficiency and affecting inductance performance. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a toroidal vertical inductor, including a pair of bases and a magnetic core. The two bases are interlocked to form a ring structure. Two sets of coils are wound on the ring structure. An open ring platform is recessed on the inner ring of the side where the two bases are interlocked. The magnetic core is installed in the open ring groove formed by the two open ring platforms. Terminals are provided on the outer periphery of the two bases. The wiring terminal of each coil is attached to the terminal or moves through the terminal.

[0004] In some possible embodiments, each of the bases is provided with two terminals, and when the two bases are fastened together, the two terminals on each base are respectively adapted to the two terminals on the other base.

[0005] In some possible embodiments, a terminal on one of the bases is provided with a positioning block, and a terminal on another base is provided with a positioning hole that mates with the positioning block.

[0006] In some possible embodiments, one of the bases is provided with a positioning groove, and the other base is provided with a positioning post that mates with the positioning groove.

[0007] In some possible embodiments, the positioning post is provided with an upper flat cover that extends to the outer periphery of the base.

[0008] In some possible embodiments, the terminal is provided with a through hole through which the wiring end on the coil moves.

[0009] In some possible embodiments, a slot is provided on the bottom of the terminal, and a patch is fitted on the terminal, with the area corresponding to the patch placed in the slot.

[0010] In some possible embodiments, the inner ring of the annular structure is provided with a removable partition that passes through the magnetic core.

[0011] In some possible embodiments, the inner diameter of the annular structure is equal to or greater than the inner diameter of the magnetic core.

[0012] In some possible embodiments, the width of the open annular groove is equal to the width of the magnetic core.

[0013] Compared to existing technologies, the advantages of this invention are as follows: The toroidal vertical inductor of this invention uses a pair of bases to enclose the magnetic core, achieving fixation and positioning of the core. The coil is directly wound on the ring structure formed by the two bases, facilitating subsequent processing and preventing the tension force of the coil winding from directly acting on the core, thus ensuring the overall performance of the inductor and fixing the relative position of the core and coil. Furthermore, the terminals are integrated with the bases, which relatively fixes the terminals and core, ensuring a stable connection between the coil's terminals and the inductor. In addition, the terminals are compatible with both surface-mount and through-hole connection methods, improving adaptability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of a toroidal vertical inductor provided in an embodiment of this utility model; Figure 2 Explosion of the toroidal vertical inductor provided in the embodiments of this utility model Figure 1 ; Figure 3 Explosion of the toroidal vertical inductor provided in the embodiments of this utility model Figure 2 .

[0016] Reference numerals: base 10, open ring platform 11, terminal 12, positioning block 13, positioning hole 14, positioning groove 15, positioning post 16, upper flat cover 17, through hole 18, slot 19, magnetic core 20, coil 30, partition 40. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1 to 3 The illustrated toroidal vertical inductor includes a pair of bases 10 and a magnetic core 20. The two bases 10 are interlocked to form a ring structure, and two sets of coils 30 are wound around the ring structure. An open ring platform 11 is recessed on the inner ring of the interlocking side of each base 10. The magnetic core 20 is installed in the open ring groove formed by the two open ring platforms 11. Two terminals 12 are provided on the outer periphery of each base 10. The terminals of each coil 30 are attached to or pass through the terminals 12. Both ends of each set of coils 30 are located on the terminals 12 for easy connection and fixation, improving manufacturing convenience. After interlocking, the two bases 10 form a ring-shaped support structure for fixing the magnetic core 20 and the two sets of coils 30. To prevent the magnetic core 20 from moving relative to the open ring groove during use, the inner diameter of the ring structure is equal to or greater than the inner diameter of the magnetic core 20, and the width of the open ring groove is equal to the width of the magnetic core 20. Furthermore, the magnetic core 20 can be bonded and fixed within the open annular groove using an adhesive. In the above embodiment, the magnetic core 20 is made of conventional materials, such as ferrite, the coil 30 can be made of conventional enameled wire, and the base 10 is made of polymer resin, such as bakelite.

[0019] In the above embodiment, in order to better fix the two terminals of the coil 30, each base 10 is provided with two terminals 12. After the two bases 10 are fastened together, the two terminals 12 on each base 10 are respectively matched with the two terminals 12 on the other base 10.

[0020] In some possible embodiments, to better adapt to plug-in assembly production, the terminal 12 is provided with a through hole 18, through which the wiring terminal of the coil 30 moves. Furthermore, a slot 19 is provided on the bottom of the terminal 12, and a patch is fitted on the terminal 12, with the corresponding area of ​​the patch placed in the slot 19.

[0021] Reference Figures 1 to 3 As shown, in order to ensure that the annular structure can stably restrict the magnetic core 20, a positioning block 13 is provided on the terminal 12 of one base 10, and a positioning hole 14 that cooperates with the positioning block 13 is provided on the terminal 12 of the other base 10. In the above embodiment, it has been explained that two terminals 12 are provided on one base 10, and therefore both terminals 12 are provided with positioning blocks 13 or positioning holes 14.

[0022] In some possible embodiments, to further improve the stability of the connection, one base 10 is provided with a positioning groove 15, and the other base 10 is provided with a positioning post 16 that cooperates with the positioning groove 15. The positioning groove 15 and the positioning post 16 are respectively provided on the other end of the base 10 opposite to the terminal 12. The two bases 10 are structurally arranged in this way to ensure that the two are securely engaged.

[0023] In the above embodiments, in order to adapt to automated SMT surface mount production equipment, an upper flat cover 17 is provided on the positioning post 16. The upper flat cover 17 extends to the outer periphery of the base 10, and the upper flat cover 17 is used to adapt to automated SMT surface mount production.

[0024] Reference Figures 1 to 3 As shown, the inner ring of the annular structure is provided with a detachable partition 40, which passes through the magnetic core 20. This structural design can avoid the stress caused during the subsequent winding of the coil 30, i.e., the influence of stress on the electrical characteristics. After the base 10 covers the magnetic core 20, it can also provide physical protection; reduce the risk of external force being directly applied to the magnetic core 20 during the winding of the coil 30; in addition, the partition 40 in the middle of the magnetic core 20 can isolate the two sets of coils 30, preventing high-voltage short circuits.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A toroidal vertical inductor, characterized by, The device includes a pair of bases and a magnetic core. The two bases are interlocked to form a ring structure. Two sets of coils are wound around the ring structure. An open ring platform is recessed on the inner ring of the side where the two bases are interlocked. The magnetic core is installed in the open ring groove formed by the two open ring platforms. Terminals are provided on the outer periphery of the two bases. The wiring terminal of each coil is attached to the terminal or moves through the terminal.

2. A toroidal vertical inductor according to claim 1, wherein Each of the bases is provided with two terminals. After the two bases are fastened together, the two terminals on each base are respectively adapted to the two terminals on the other base.

3. A toroidal vertical inductor according to claim 1, characterized in that, One of the bases has a terminal with a positioning block, and the other base has a terminal with a positioning hole that mates with the positioning block.

4. A toroidal vertical inductor according to claim 1, characterized in that, One of the bases is provided with a positioning groove, and the other base is provided with a positioning post that mates with the positioning groove.

5. A toroidal vertical inductor according to claim 4, characterized in that, The positioning post is provided with an upper flat cover, which extends to the outer periphery of the base.

6. A toroidal vertical inductor according to claim 1, characterized in that, The terminal is provided with a through hole, and the wiring end on the coil moves through the through hole.

7. A toroidal vertical inductor according to claim 1, characterized in that, A slot is provided on the bottom of the terminal, and a patch is fitted on the terminal, with the area corresponding to the patch placed in the slot.

8. A toroidal vertical inductor according to claim 1, characterized in that, The inner ring of the annular structure is provided with a detachable partition that passes through the magnetic core.

9. A toroidal vertical inductor according to claim 1, characterized in that, The inner diameter of the ring structure is equal to or greater than the inner diameter of the magnetic core.

10. A toroidal vertical inductor according to claim 1, characterized in that, The width of the open annular groove is equal to the width of the magnetic core.

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