Common mode inductor with sunken direct insertion type ultrathin structure

Abstract

The utility model discloses a common-mode inductor with a sunken direct-insertion ultrathin structure, which relates to the technical field of common-mode inductors and comprises a base, a magnetic core fixed inside the base and a coil wound outside the magnetic core. The magnetic core and the coil can be integrally installed in the base in a sinking mode through the groove positions, and after installation, the height of the highest point of the coil is lower than the height of the upper surface of the base. According to the common mode inductor, the inductor body is sunken by 3-3.5 mm by adopting a sunken structure and being supported by the base, so that the height of the inductor body on a board is reduced, the design requirement of a customer for an ultra-thin structure is met, the space utilization rate of a product is improved, in addition, the base adopts a PIN direct insertion structure, the structure of the inductor is fully and reasonably utilized, and the cost is reduced. Therefore, the inductor body has a very compact structure, and the occupied area of a PCB (Printed Circuit Board) is fully saved for customers.

Description

Technical Field

[0001] The utility model relates to the technical field of common-mode inductors, in particular to a common-mode inductor with a sunken, direct-insertion, ultra-thin structure. Background Art

[0002] In today's electronics field, common-mode inductors are essential components in electronic devices, widely used for filtering and interference suppression. However, traditional common-mode inductors mostly use a base with pins or epoxy boards without pins as the base, resulting in a relatively high mounting height on the PCB. With the continuous miniaturization and ultra-thinness of electronic devices, traditional inductor designs are no longer able to meet market demand for ultra-thin products.

[0003] Especially when designing ultra-thin electronic products, traditional in-line inductors often cannot be used due to their excessive height. This not only limits the miniaturization of electronic products but also poses significant challenges to designers. Therefore, the challenge of providing a compact, highly controllable common-mode inductor that meets these ultra-thin design requirements has become a pressing issue. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a common-mode inductor with a sunken, direct-insertion, ultra-thin structure, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a common-mode inductor with a sunken, plug-in, ultra-thin structure, comprising a base, a magnetic core fixed inside the base, and a coil wound around the outside of the magnetic core. A slot is reserved inside the base, through which the magnetic core and coil can be sunk 3-3.5 mm as a whole and installed inside the base. After installation, the height of the highest point of the coil is lower than the height of the upper surface of the base.

[0006] Furthermore, a partition plate integrally connected to the base is provided in the middle of the slot, and the partition plate divides the slot into two equal installation cavities.

[0007] Furthermore, the magnetic core is a "mouth"-shaped structure, and the coil is symmetrically wound around the outside of the magnetic core.

[0008] Furthermore, the magnetic core is fixed inside the slot, and the two coils are located inside the two cavities respectively.

[0009] Furthermore, each coil can form two pins after being wound.

[0010] Furthermore, threading holes are reserved at the corners of the base, and the free ends of the pins are led out to the outside of the base through the threading holes.

[0011] The utility model provides a common-mode inductor with a sunken, direct-insertion, ultra-thin structure. Compared with the existing technology, it has the following advantages:

[0012] This common-mode inductor adopts a sunken structure and is supported by a base, which allows the inductor body to sink 3-3.5mm, reducing the height of the inductor body on the board, thereby meeting customers' ultra-thin structure design requirements and improving product space utilization. In addition, the base adopts a PIN direct plug-in structure, fully and rationally utilizing the structure of the inductor, making the inductor body maintain a very compact structure, and fully saving PCB space for customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the split structure of the utility model;

[0014] Figure 2 This is a structural diagram of the base in the utility model;

[0015] Figure 3 This is a schematic diagram of the assembly structure of the utility model;

[0016] Figure 4 It is a half-section view of the utility model after assembly.

[0017] In the figure: 1. Base; 11. Slot; 12. Partition; 13. Threading hole; 2. Magnetic core; 3. Coil; 31. Pin. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4The utility model provides a technical solution: a common-mode inductor with a sunken, direct-insertion, ultra-thin structure, which is mainly composed of three parts: a base 1, a magnetic core 2, and a coil 3. The base 1 serves as the supporting structure of the entire inductor, and a specific slot 11 is reserved inside it for installing the magnetic core 2 and the coil 3. The magnetic core 2 is fixed inside the slot 11 to guide the magnetic field, while the coil 3 is wound around the outside of the magnetic core 2 to form an inductor element. The slot 11 not only provides installation space for the magnetic core 2 and the coil 3, but also achieves the ultra-thinness of the inductor by sinking 3-3.5mm. A partition 12 integrally connected to the base 1 is provided in the middle of the slot 11, and the partition 12 evenly divides the slot 11 into two equal installation cavities. This design not only improves the structural stability of the inductor, but also facilitates the symmetrical winding of the coil 3.

[0020] Furthermore, the magnetic core 2 adopts a "mouth"-shaped structure, which allows the coils 3 to be symmetrically wound around the outside of the core 2, thereby improving the inductor's electromagnetic performance. During actual installation, the magnetic core 2 is fixed inside slot 11, while the two coils 3 are located in the corresponding cavities. This arrangement not only ensures the inductor's compact structure but also effectively utilizes space.

[0021] In addition, each coil 3 forms two pins 31 after winding, which are used to connect to the external circuit. To facilitate the extraction and connection of the pins, the corners of the base 1 are reserved with threading holes 13. The free ends of the pins 31 are led out to the outside of the base 1 through the threading holes 13, thus achieving a reliable connection between the inductor and the external circuit.

[0022] During the installation process, the two coils 3 are first symmetrically wound around the outside of the magnetic core 2, and then the magnetic core 2 and coils 3 are assembled and fixed inside the slot 11. Next, the pins 31 are led out to the outside of the base 1 through the threading holes 13 and connected to the external circuit. Since the highest point of the coil 3 is lower than the height of the upper surface of the base 1, the entire inductor has an ultra-thin structure after installation.

Claims

1. A common-mode inductor with a sunken, direct-insert, ultra-thin structure, comprising a base (1), a magnetic core (2) fixed inside the base (1), and a coil (3) wound around the outside of the magnetic core (2), characterized in that: A slot (11) is reserved inside the base (1), and the magnetic core (2) and the coil (3) can be installed inside the base (1) by sinking 3-3.5 mm as a whole through the slot (11). After installation, the height of the highest point of the coil (3) is lower than the height of the upper surface of the base (1).

2. The common-mode inductor with a sunken, direct-insertion, ultra-thin structure according to claim 1, characterized in that: A partition (12) integrally connected to the base (1) is provided in the middle of the slot (11), and the partition (12) divides the slot (11) into two equal installation cavities.

3. The common-mode inductor with a sunken, direct-insertion, ultra-thin structure according to claim 1, characterized in that: The magnetic core (2) has a "mouth"-shaped structure, and the coil (3) is symmetrically wound around the outside of the magnetic core (2).

4. The common-mode inductor with a sunken, direct-insertion, ultra-thin structure according to claim 1, characterized in that: The magnetic core (2) is fixed inside the slot (11), and the two coils (3) are correspondingly located inside the two cavities.

5. The common-mode inductor with a sunken, direct-insertion, ultra-thin structure according to claim 1, characterized in that: Each coil (3) can form two pins (31) after being wound.

6. The common-mode inductor with a sunken, direct-insertion, ultra-thin structure according to claim 5, characterized in that: Threading holes (13) are reserved at the corners of the base (1), and the free ends of the pins (31) are led out to the outside of the base (1) through the threading holes (13).

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