Magnetic core for inductor

Abstract

The magnetic core for the inductor relates to the technical field of magnetic cores and comprises a magnetic core lower yoke and a magnetic core upper yoke, a lower sleeve hole is formed in the center of the magnetic core lower yoke, a left wrapping plate is fixed at the left end of the magnetic core lower yoke, and a right wrapping plate is fixed at the right end of the magnetic core lower yoke. A magnetic core upper yoke is installed between the upper end of the left wrapping plate and the upper end of the right wrapping plate, an upper sleeve hole is formed in the center of the magnetic core upper yoke, a magnetic core column is arranged between the upper sleeve hole and the lower sleeve hole in a sleeved mode, the center of the magnetic core lower yoke, the center of the lower sleeve hole and the center of the magnetic core upper yoke are located on the same axis, and notches are formed in the front side and the rear side of the magnetic core lower yoke. The left wrapping plate and the right wrapping plate are in bilateral symmetry about the center line of the magnetic core lower yoke, and first screw holes are formed in the front portion and the rear portion of the left wrapping plate and the front portion and the rear portion of the right wrapping plate respectively. The coil can be conveniently and stably wound on the magnetic core column, the outer side extrusion and the top pressing of the coil are safe and stable, the coil is not prone to loosing, electromagnetism is kept stable, dismounting and mounting are convenient, and the coil is more flexible, safer and more reliable.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core technology, specifically to a magnetic core for inductors. Background Technology

[0002] The ferrite cores we often see at one or both ends of the power or signal lines of electronic devices are common-mode chokes. Common-mode chokes can create a significant impedance to common-mode interference currents without affecting differential-mode signals, making them simple to use without worrying about signal distortion. Furthermore, common-mode chokes do not require grounding and can be directly connected to the cable.

[0003] In the specification of a magnetic core for an inductor (publication number CN207868033U), it is mentioned that "a second magnetic core post and a third magnetic core post are provided between the upper yoke and the lower yoke of the magnetic core. The second and third magnetic core posts are electrically connected to the upper yoke and the lower yoke of the magnetic core. A first magnetic core post is provided below the upper yoke of the magnetic core. The first magnetic core post is electrically connected to the upper yoke of the magnetic core. Fixing plates are provided on both the left and right sides of the upper yoke and the lower yoke of the magnetic core. The fixing plates are fixedly connected to the upper yoke and the lower yoke of the magnetic core. A screw hole is provided in the middle of the fixing plate. The screw hole is provided through the fixing plate. A super magnet is provided inside the first magnetic core post. The super magnet is embedded in the first magnetic core post." However, the coil wrapped around the magnetic core post in the prior art may become scattered, resulting in electromagnetic disturbances, and its use is not safe, stable and reliable. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a magnetic core for inductors is provided to solve the problem that the coils wrapped around the core in existing technologies may become scattered, leading to electromagnetic disturbances and making the use unsafe, unstable and unreliable.

[0005] To achieve the above objectives, a magnetic core for an inductor is provided, comprising a lower yoke and an upper yoke. The lower yoke has a lower sleeve hole at its center, a left cover plate is fixed to the left end of the lower yoke, and a right cover plate is fixed to the right end of the lower yoke. The upper yoke is installed between the upper ends of the left and right cover plates, and an upper sleeve hole is opened at its center. A magnetic core post is fitted between the upper and lower sleeve holes, and the centers of the lower yoke, the lower sleeve hole, and the upper yoke are all located on the same axis.

[0006] Furthermore, notches are provided on both the front and rear sides of the lower yoke of the magnetic core, and the left and right cladding plates are symmetrical about the center line of the lower yoke of the magnetic core, and the left and right cladding plates have the same structural configuration.

[0007] Furthermore, both the front and rear parts of the left and right cover plates are provided with first screw holes, and the inner surfaces of both the left and right cover plates are provided with concave surfaces.

[0008] Furthermore, telescopic cylinders are installed on the inner sides of both the left and right cover plates, and clamping plates are fixed to the front ends of the telescopic cylinders. An insulating liner is provided on the inner side of the clamping plate, and the insulating liner is made of silicone rubber.

[0009] Furthermore, the left and right sides of the yoke on the magnetic core are provided with second screw holes, and each set of second screw holes is vertically aligned with a set of first screw holes, and a bolt is installed between the vertically aligned second screw holes and the first screw holes.

[0010] Furthermore, the upper end of the bolt is provided with a handle, and the bolt is detachably connected to the lower yoke and upper yoke of the magnetic core, and the bolt is a detachable structure.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, the inner surfaces of the left and right cover plates are designed as concave surfaces, forming a central depression that is deeper than the front and rear sides, which can better hold the coil wound around the magnetic core column, making its placement more stable.

[0013] 2. In this utility model, the telescopic cylinder can be extended and retracted to flexibly move the insulating liner left and right, facilitating stable compression around the coil wound around the magnetic core column. Furthermore, a clamping plate is provided on the inner side of the insulating liner for safe discharge. The insulating liner also adopts a concave structure, with the central recess being deeper than the front and rear sides, and the V-shaped clamping provides greater safety and stability.

[0014] 3. In this utility model, the upper yoke of the magnetic core is secured by bolts installed between the handles on the left and right sides and the first screw holes on the left and right cover plates. The lower yoke of the magnetic core and the upper yoke of the magnetic core are easy to assemble, thereby stably pressing the top of the coil; it is also easy to disassemble for inspection and maintenance, making it more convenient, safe and practical. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a top view of the lower yoke of the magnetic core according to an embodiment of the present invention;

[0017] Figure 3 This is a top view of the yoke on the magnetic core according to an embodiment of the present invention;

[0018] Figure 4 This is a front view schematic diagram of the upper yoke of the magnetic core according to an embodiment of the present invention.

[0019] In the diagram: 1. Lower yoke of the magnetic core; 10. Magnetic core column; 11. Notch; 12. Left cover plate; 13. Right cover plate; 14. Concave surface; 15. Telescopic cylinder; 16. Clamping plate; 17. Insulating liner; 18. First screw hole; 19. Lower sleeve hole; 2. Upper yoke of the magnetic core; 20. Bolt; 21. Upper sleeve hole; 22. Handle; 23. Second screw hole. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 2 This is a top view of the lower yoke of the magnetic core according to an embodiment of the present invention. Figure 3 This is a top view of the yoke on the magnetic core according to an embodiment of the present invention. Figure 4 This is a front view schematic diagram of the upper yoke of the magnetic core according to an embodiment of the present invention.

[0023] Reference Figures 1 to 4 As shown, this utility model provides a magnetic core for an inductor, including a lower yoke 1 and an upper yoke 2. The lower yoke 1 has a lower sleeve hole 19 at its center, and a left cover plate 12 is fixed to the left end of the lower yoke 1, and a right cover plate 13 is fixed to the right end of the lower yoke 1. The upper yoke 2 is installed between the upper ends of the left cover plate 12 and the right cover plate 13, and an upper sleeve hole 21 is opened at its center. A magnetic core post 10 is sleeved between the upper sleeve hole 21 and the lower sleeve hole 19, and the centers of the lower yoke 1, the lower sleeve hole 19 and the upper yoke 2 are all located on the same axis.

[0024] In this embodiment, notches 11 are provided on both the front and rear sides of the lower yoke 1 of the magnetic core, and the left cover plate 12 and the right cover plate 13 are symmetrical about the center line of the lower yoke 1 of the magnetic core, and the left cover plate 12 and the right cover plate 13 have the same structure; the front and rear parts of the left cover plate 12 and the right cover plate 13 are provided with first screw holes 18, and the inner side surfaces of the left cover plate 12 and the right cover plate 13 are provided with concave surfaces 14.

[0025] As a preferred embodiment, the inner surfaces of the left cover plate 12 and the right cover plate 13 in this invention are configured as concave surfaces 14, forming a central depression that is deeper than the front and rear sides, which can better hold the coil wound around the magnetic core column 10, making its placement more stable.

[0026] In this embodiment, telescopic cylinders 15 are installed on the inner sides of both the left cover plate 12 and the right cover plate 13, and a clamping plate 16 is fixed to the front end of the telescopic cylinder 15. An insulating liner 17 is provided on the inner side of the clamping plate 16, and the insulating liner 17 is made of silicone rubber.

[0027] In a preferred embodiment, the telescopic cylinder 15 extends and retracts, allowing the insulating liner 17 to move flexibly left and right, facilitating stable compression around the coil wound around the magnetic core column 10. Furthermore, a clamping plate 16 is provided on the inner side of the insulating liner 17 for safe discharge. The insulating liner 17 also adopts a concave structure, with the central recess being deeper than the front and rear sides, employing a V-shaped clamping method for enhanced safety and stability.

[0028] In this embodiment, the left and right sides of the upper yoke 2 of the magnetic core are provided with second screw holes 23, and each set of second screw holes 23 is vertically aligned with a set of first screw holes 18. A bolt 20 is installed between the vertically aligned second screw holes 23 and the first screw holes 18. A handle 22 is provided at the upper end of the bolt 20, and the bolt 20 is detachably connected to the lower yoke 1 and the upper yoke 2 of the magnetic core. The bolt 20 is a detachable structure.

[0029] In a preferred embodiment, the upper yoke 2 of the magnetic core is secured by bolts 20 installed between the handles 22 on the left and right sides and the first screw holes 18 on the left and right cover plates 12 and 13. The lower yoke 1 of the magnetic core and the upper yoke 2 of the magnetic core are easy to assemble, thereby stably pressing the top of the coil; it is also easy to disassemble for inspection and maintenance, making it more convenient, safe and practical.

[0030] This invention effectively solves the problem in the prior art that the coil wrapped around the magnetic core may become scattered, leading to electromagnetic disturbances and making it unsafe, unstable and unreliable. This invention facilitates the stable winding of the coil on the magnetic core, and the compression on the outside and top of the coil are safe and secure, making it less prone to loosening, thus maintaining electromagnetic stability. It is also convenient to disassemble and assemble, and is more flexible, safe and reliable.

[0031] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A magnetic core for an inductor, characterized by: The utility model relates to a magnetic core structure, including magnetic core lower yoke (1) and magnetic core upper yoke (2), the centre of magnetic core lower yoke (1) is equipped with lower sleeve hole (19), and the left end of magnetic core lower yoke (1) is fixed with left cladding (12), and the right end of magnetic core lower yoke (1) is fixed with right cladding (13), the upper end between left cladding (12) and right cladding (13) is installed with magnetic core upper yoke (2), and the centre of magnetic core upper yoke (2) is equipped with upper sleeve hole (21), the upper sleeve hole (21) and lower sleeve hole (19) are sleeved with magnetic core column (10), and the centre of magnetic core lower yoke (1), lower sleeve hole (19) and magnetic core upper yoke (2) are located on same axis.

2. A magnetic core for an inductor according to claim 1, wherein The front and rear sides of the magnetic core lower yoke (1) are both provided with notches (11), the left cladding (12) and the right cladding (13) are left-right symmetrical about the center line of the magnetic core lower yoke (1), and the left cladding (12) and the right cladding (13) have the same structure.

3. A magnetic core for an inductor according to claim 1, wherein The left cladding (12) and the right cladding (13) are both provided with first screw holes (18), and the inner sides of the left cladding (12) and the right cladding (13) are both provided with concave surfaces (14).

4. The magnetic core of claim 1, wherein The left cladding (12) and the right cladding (13) are both provided with first screw holes (18), and the inner sides of the left cladding (12) and the right cladding (13) are both provided with concave surfaces (14).

5. The magnetic core of claim 1, wherein The left cladding (12) and the right cladding (13) are both provided with first screw holes (18), and the inner sides of the left cladding (12) and the right cladding (13) are both provided with concave surfaces (14).

6. A magnetic core for an inductor according to claim 5, wherein The left cladding (12) and the right cladding (13) are both provided with first screw holes (18), and the inner sides of the left cladding (12) and the right cladding (13) are both provided with concave surfaces (14). The left cladding (12) and the right cladding (13) are both provided with first screw holes (18), and the inner sides of the left cladding (12) and the right cladding (13) are both provided with concave surfaces (14).

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