Combined inductor structure
By designing a combined inductor structure, the problems of moisture resistance and interference resistance of traditional magnetic cores in extreme environments are solved, achieving higher reliability and stability and enhancing electromagnetic field transmission efficiency.
Patent Information
- Application Number
- CN202520201847.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Traditional exposed magnetic core wire assemblies cannot meet the requirements for moisture protection, insulation and anti-interference in extreme or harsh environments, resulting in insufficient reliability and stability of electronic components.
A combined inductor structure was designed, including a magnetic core jacket and a magnetic core. The magnetic core jacket has lead grooves, the magnetic core is embedded in the jacket, and the coil is wound on the magnetic core and led out through the lead grooves. Combined with a metal coating and limiting blocks, a compact closed structure is formed to enhance anti-interference performance.
It effectively reduces exposed coils, improves anti-interference capabilities, enhances moisture resistance and insulation performance, extends service life, and optimizes electromagnetic field transmission efficiency.
Smart Images

Figure CN223898145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inductor technology, and in particular to a combined inductor structure. Background Technology
[0002] A magnetic core is a material with high magnetic permeability and low resistance. The core is made of magnetically permeable material and wrapped with copper wire, allowing electrical signals to pass through smoothly and forming a strong electromagnetic field. It is widely used in electrical engineering, electronics and communications. However, precision manufacturing and other industries have more stringent requirements for electronic components. These industries often need to operate in extreme or harsh environments. In such environments, electronic components must have properties such as moisture resistance, insulation and anti-interference to ensure the reliability and stability of the equipment. Traditional exposed magnetic core wire assemblies cannot meet these requirements due to insufficient protection. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a combined inductor structure, which has a simple combined structure and good anti-interference effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A combined inductor structure includes: a magnetic core jacket and a magnetic core, wherein the magnetic core jacket is a hollow shell with openings at both ends, the magnetic core is embedded in the hollow part of the magnetic core jacket, and the upper surface of the magnetic core jacket is provided with four first lead slots.
[0006] According to some embodiments of the present invention, each of the first lead slots is arranged at equal angles on the upper surface of the magnetic core jacket.
[0007] According to some embodiments of the present invention, the magnetic core jacket is a hollow cube, and the first lead grooves are respectively disposed at the four corners of the magnetic core jacket.
[0008] According to some embodiments of the present invention, the four corners of the upper surface of the magnetic core jacket are coated with a metal coating.
[0009] According to some embodiments of the present invention, the inner side of the magnetic core jacket is provided with four second lead slots that are corresponding to and communicate with the first lead slot.
[0010] According to some embodiments of the present invention, the magnetic core includes a central column and limiting blocks disposed at both ends of the central column.
[0011] According to some embodiments of the present invention, the edge of the limiting block is provided with four third lead slots opposite to the first lead slot.
[0012] According to some embodiments of this utility model, the height of the magnetic core is the same as the height of the magnetic core jacket.
[0013] According to some embodiments of this utility model, the limiting block is circular, and the hollow part of the magnetic core outer sleeve is a circular hole that matches the limiting block.
[0014] This utility model has at least the following beneficial effects:
[0015] The coil is wound on the magnetic core, and the magnetic core is embedded in the hollow part of the magnetic core jacket. The hollow part matches the shape of the magnetic core. The embedded combination can effectively reduce the exposure of the coil, and the coil can be wound to the maximum number without falling off. It can further seal the magnetic core and achieve an anti-interference effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the magnetic core jacket according to one embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the magnetic core structure according to one embodiment of the present invention. Detailed Implementation
[0019] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0020] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.
[0022] An embodiment of this utility model provides a combined inductor structure, such as... Figure 1-3As shown, it includes a magnetic core jacket 101 and a magnetic core 201. The magnetic core jacket 101 is a hollow shell with openings at both ends. The magnetic core 201 is embedded in the hollow part of the magnetic core jacket 101. The upper surface of the magnetic core jacket 101 is provided with four first lead grooves 102.
[0023] The coil is wound around the magnetic core 201, which is embedded in the hollow part of the magnetic core jacket 101. The hollow part matches the shape of the magnetic core 201, reducing gaps and compressing the space. The coil is led out from the first lead slot 102. The four first lead slots 102 can be arranged in pairs or in a distributed manner. The embedded combination can effectively reduce the exposure of the coil, and the coil can be wound to the maximum number without falling off. The magnetic core 201 can be further sealed by subsequent glue assembly, achieving effects such as moisture protection, insulation, and anti-interference. In addition, the combination structure also has the optimization performance effects of amplifying signals and increasing inductance value.
[0024] In some embodiments, such as Figure 1-2 As shown, the first lead slots 102 are evenly arranged at equal angles on the upper surface of the magnetic core jacket 101. This facilitates wiring and also improves aesthetics.
[0025] Furthermore, such as Figure 1-2 As shown, the magnetic core jacket 101 is a hollow cube, and the first lead grooves 102 are respectively arranged at the four corners of the magnetic core jacket 101. The arrangement of the first lead grooves 102 at the four corners of the cube can ensure the strength of the magnetic core jacket 101 and prevent the wall thickness of the magnetic core jacket 101 from being too thin and easily broken.
[0026] Furthermore, such as Figure 1-2 As shown, the four corners of the upper surface of the magnetic core jacket 101 are coated with a metal coating 103. In practice, the magnetic core jacket 101 is coated with a silver coating. The use of a silver coating can significantly improve the conductivity of the combined inductor structure, thereby optimizing the transmission efficiency of the electromagnetic field. It can also play a role in corrosion prevention and protection of the magnetic core 201, extending its service life.
[0027] In some embodiments, such as Figure 1-2 As shown, the inner side of the magnetic core jacket 101 is provided with four second lead slots 104 that correspond to and communicate with the first lead slot 102. In this embodiment, the second lead slots 104 are concave arc-shaped, which better matches the wire body. The second lead slots 104 communicate with the first lead slots 102, which facilitates the wire body to run along the second lead slots 104 and the first lead slots 102, maintains the integrity of the combined inductor structure, and improves anti-interference performance.
[0028] In some embodiments, such as Figure 1 , 3As shown, the magnetic core 201 includes a central post 202 and limiting blocks 203 disposed at both ends of the central post 202. The coil is wound on the central post 202 and is limited by the limiting blocks 203 to prevent it from loosening.
[0029] Furthermore, such as Figure 1 , 3 As shown, the edge of the limiting block 203 is provided with four third lead grooves 204 opposite to the first lead groove 102. The third lead grooves 204 can further guide the direction of the wire, ensuring that the wire can pass smoothly through the first lead groove 102, facilitating subsequent sealing and improving anti-interference performance.
[0030] Furthermore, such as Figure 1 , 3 As shown, the height of the magnetic core 201 is the same as the height of the magnetic core jacket 101. This makes the assembled magnetic core 201 and magnetic core jacket 101 more integrated.
[0031] Furthermore, such as Figure 1 , 3 As shown, the limiting block 203 is circular, and the hollow part of the magnetic core outer sleeve 101 is a circular hole that matches the limiting block 203. The circular structure is more suitable for coil winding, increases the number of coils, and facilitates further performance improvement.
[0032] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.
Claims
1. A composite inductor structure, characterized in that, include: The magnetic core jacket (101) and the magnetic core (201) are provided. The magnetic core jacket (101) is a hollow shell with openings at both ends. The magnetic core (201) is embedded in the hollow part of the magnetic core jacket (101). The upper surface of the magnetic core jacket (101) is provided with four first lead grooves (102).
2. The combined inductor structure according to claim 1, characterized in that: Each of the first lead slots (102) is evenly arranged at equal angles on the upper surface of the magnetic core jacket (101).
3. The combined inductor structure according to claim 2, characterized in that: The magnetic core jacket (101) is a hollow cube, and the first lead groove (102) is respectively disposed at the four corners of the magnetic core jacket (101).
4. The combined inductor structure according to claim 3, characterized in that: The four corners of the upper surface of the magnetic core jacket (101) are coated with a metal coating (103).
5. The combined inductor structure according to claim 1, characterized in that: The inner side of the magnetic core jacket (101) is provided with four second lead slots (104) that are connected to the first lead slot (102).
6. A combined inductor structure according to any one of claims 1-5, characterized in that: The magnetic core (201) includes a central column (202) and limiting blocks (203) disposed at both ends of the central column (202).
7. A combined inductor structure according to claim 6, characterized in that: The edge of the limiting block (203) is provided with four third lead slots (204) opposite to the first lead slot (102).
8. A combined inductor structure according to claim 6, characterized in that: The height of the magnetic core (201) is the same as the height of the magnetic core jacket (101).
9. A combined inductor structure according to claim 6, characterized in that: The limiting block (203) is circular, and the hollow part of the magnetic core jacket (101) is a circular hole that matches the limiting block (203).