High-efficiency low-harmonic multipurpose high-frequency inductor

Abstract

The high-efficiency low-harmonic multipurpose high-frequency inductor comprises a base, a first magnetic core, a second magnetic core and a third magnetic core, the first magnetic core, the second magnetic core and the third magnetic core are arranged on the base side by side, and a connecting column is arranged at the top of the first magnetic core and connected with the second magnetic core and the third magnetic core. Cooling fins are arranged at the positions, corresponding to the first magnetic core, the second magnetic core and the third magnetic core, of the connecting column, the cooling fins penetrate through the interiors of the first magnetic core, the second magnetic core and the third magnetic core, the cooling fins are fixed through bolts, a connecting plate is arranged above the cooling fins, and a harmonic suppressor is arranged at the center of the connecting plate; the first magnetic core, the second magnetic core and the third magnetic core are respectively provided with an output terminal and an input terminal, due to the fact that the magnetic core technology that the first magnetic core, the second magnetic core and the third magnetic core are staggered is adopted, better performance and improved filtering capacity can be obtained under high frequency, and meanwhile through the arrangement of the cooling fins and the harmonic suppressor, the filtering capacity is improved. Harmonic interference is effectively reduced, and efficient heat management is achieved.

Description

Technical Field

[0001] The utility model relates to an inductor, in particular to a high-efficiency, low-harmonic, multi-purpose, high-frequency inductor. Background Art

[0002] High-frequency inductors are electromagnetic induction components with the highest efficiency, fastest speed, low consumption and environmental protection.

[0003] Existing high-frequency inductors primarily address electromagnetic interference and harmonics through the following methods. Traditional inductors use ferrite core materials, leveraging their high permeability and excellent magnetic properties to reduce common-mode noise and harmonic interference. They employ simple single-layer or multi-layer winding structures, increasing the number of turns to increase inductance and, consequently, filtering effectiveness. Additional filtering components, such as capacitors and resistors, are added to the circuit to assist the inductor in suppressing interference and harmonics.

[0004] However, existing high-frequency inductors have the disadvantages of low conversion efficiency and large harmonic interference, and are not suitable for use in multiple scenarios. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency, low-harmonic, multi-purpose high-frequency inductor to solve the above technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-efficiency, low-harmonic, multi-purpose, high-frequency inductor, comprising a base, a first magnetic core, a second magnetic core, and a third magnetic core arranged in parallel on the base, a connecting column provided on the top of the first magnetic core to connect to the second magnetic core and the third magnetic core, heat sinks provided on the connecting column corresponding to the first magnetic core, the second magnetic core, and the third magnetic core, the heat sinks all pass through the interiors of the first magnetic core, the second magnetic core, and the third magnetic core, the heat sinks located on the tops of the second magnetic core and the third magnetic core are fixed by bolts and a connecting plate is provided above them, a harmonic suppressor is provided at the center of the connecting plate, the first magnetic core, the second magnetic core, and the third magnetic core are all provided with output terminals and input terminals, the output terminal is provided on the side of the first magnetic core, the second magnetic core, and the third magnetic core close to the base, the input terminal is provided on the side of the first magnetic core, the second magnetic core, and the third magnetic core close to the connecting column, the heat sink located on the top of the first magnetic core is fixed to the connecting column by bolts, and a connecting terminal is provided on one side of the bolt.

[0007] Preferably, the first magnetic core is made of nanocrystalline material, and the second magnetic core and the third magnetic core are made of nano-amorphous material.

[0008] Preferably, the base includes two L-shaped fixing plates, and the two L-shaped fixing plates are connected to the first magnetic core, the second magnetic core and the third magnetic core by bolts.

[0009] Preferably, the lengths of the output terminal and the input terminal are greater than the length of the L-shaped fixing plate.

[0010] Preferably, the heat sink uses integrated phase change material (PCM).

[0011] Preferably, shielding layers are provided in the first magnetic core, the second magnetic core and the third magnetic core.

[0012] Preferably, the harmonic suppressor is an LC filter.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The working efficiency of high-frequency inductors is improved, and the generation of harmonics is effectively reduced. Due to the use of a magnetic core technology in which the first core, the second core, and the third core are staggered, different high-frequency inductance effects are obtained when two different magnetic cores are connected or three magnetic cores are connected at the same time, which can achieve better performance and improved filtering capabilities at high frequencies. At the same time, by setting up a heat sink and a harmonic suppressor, harmonic interference is more effectively reduced and efficient thermal management is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is an overall schematic diagram of a high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to this embodiment;

[0017] Figure 2 is a front view of this embodiment with the base removed;

[0018] Figure 3 It is a side view of a high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to this embodiment.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Base; 2. First magnetic core; 3. Second magnetic core; 4. Third magnetic core; 5. Connecting column; 6. Heat sink; 7. Connecting plate; 8. Harmonic suppressor; 9. Output terminal; 10. Input terminal; 11. Connecting terminal; 12. L-shaped fixing plate; 13. Shielding layer plate. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying 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.

[0022] See also Figure 1-3 The utility model provides a technical solution: a high-efficiency, low-harmonic, multi-purpose high-frequency inductor, comprising a base 1, a first magnetic core 2, a second magnetic core 3, and a third magnetic core 4 arranged in parallel on the base 1, a connecting column 5 is provided on the top of the first magnetic core 2 to connect with the second magnetic core 3 and the third magnetic core 4, and a heat sink 6 is provided on the connecting column 5 corresponding to the first magnetic core 2, the second magnetic core 3, and the third magnetic core 4. The heat sink 6 passes through the first magnetic core 2, the second magnetic core 3, and the third magnetic core 4. The heat sink 6 located on the top of the second magnetic core 3 and the third magnetic core 4 passes through the heat sink 6. It is fixed with bolts and a connecting plate 7 is provided on the top. A harmonic suppressor 8 is provided at the center of the connecting plate 7. Output terminals 9 and input terminals 10 are provided on the first magnetic core 2, the second magnetic core 3 and the third magnetic core 4. The output terminal 9 is provided on the side of the first magnetic core 2, the second magnetic core 3 and the third magnetic core 4 close to the base 1. The input terminal 10 is provided on the side of the first magnetic core 2, the second magnetic core 3 and the third magnetic core 4 close to the connecting column 5. The heat sink 6 located on the top of the first magnetic core 2 is fixed to the connecting column 5 by bolts and a connecting terminal 11 is provided on one side of the bolt.

[0023] Furthermore, the first magnetic core 2 is made of nanocrystalline material, and the second magnetic core 3 and the third magnetic core 4 are made of nano-amorphous material. By combining the high magnetic permeability of the nanocrystalline material used in the first magnetic core 2 and the low loss characteristics of the nano-amorphous material used in the second and third magnetic cores 4, the high efficiency and low harmonic characteristics of the inductor are achieved.

[0024] Specifically, the base 1 includes two L-shaped fixing plates 12, which are connected to the first magnetic core 2, the second magnetic core 3 and the third magnetic core 4 by bolts. Fixing them through the two L-shaped fixing plates 12 is more convenient and quick, and the middle of the two L-shaped fixing plates 12 is hollow, which is more convenient for heat dissipation.

[0025] Furthermore, the heat sink 6 adopts an integrated phase change material (PCM), which can absorb and release heat through the phase change process to achieve efficient thermal management.

[0026] Specifically, the length of the output terminal 9 and the input terminal 10 is greater than the length of the L-shaped fixing plate 12. Through the above arrangement, the output terminal 9 and the input terminal 10 can extend outside the base 1 to facilitate connection with other circuit components.

[0027] Specifically, shielding layers 13 are provided in the first magnetic core 2 , the second magnetic core 3 and the third magnetic core 4 . The shielding layers 13 can effectively suppress electromagnetic interference during high-frequency operation, thereby improving signal stability and reliability.

[0028] Furthermore, the harmonic suppressor 8 is an LC filter, which can better reduce the influence of harmonics.

[0029] A specific application example of this embodiment is:

[0030] When using this device, the output terminals 9 and input terminals 10 on the first, second, and third magnetic cores 2, 3, and 4 are connected according to the required equipment. Interleaved and multi-layered planar winding technology is used to minimize parasitic effects. This achieves better performance and improved filtering capabilities at high frequencies. At the same time, harmonic suppression is achieved through a harmonic suppressor 8 (LC filter) located at the center of the connecting plate 7 on the second and third magnetic cores 3, 4. Because the second and third magnetic cores 3, 4 are also made of nano-amorphous materials, the filtering between the second and third magnetic cores 3, 4 will be relatively large. Therefore, the harmonic suppressor 8 located at the center of the connecting plate 7 on the second and third magnetic cores 3, 4 can achieve more effective harmonic suppression. In addition, since the first magnetic core 2 is made of nanocrystalline material, its high magnetic permeability characteristics enable the inductor to have better performance when working at high frequencies. At the same time, the low loss characteristics of the second magnetic core 3 and the third magnetic core 4 ensure the overall low harmonic generation. The connection terminal 11 set on one side of the first magnetic core 2 can conveniently connect different electrical appliances. The heat sink 6 with integrated phase change material absorbs and releases heat during the phase change process of the entire inductor to achieve efficient thermal management. The shielding layer 13 can effectively suppress electromagnetic interference during high-frequency operation and improve the stability and reliability of the signal.

[0031] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, low-harmonic, multi-purpose high-frequency inductor, characterized by: The invention comprises a base (1), a first magnetic core (2), a second magnetic core (3) and a third magnetic core (4) arranged in parallel on the base (1); a connecting column (5) is provided on the top of the first magnetic core (2) to connect with the second magnetic core (3) and the third magnetic core (4); heat sinks (6) are provided on the connecting column (5) at positions corresponding to the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4); the heat sinks (6) pass through the inside of the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4); the heat sinks (6) located on the top of the second magnetic core (3) and the third magnetic core (4) are fixed by bolts and a connecting plate (7) is provided on the top; A harmonic suppressor (8) is provided at the center of the connecting plate (7), and an output terminal (9) and an input terminal (10) are provided on each of the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4). The output terminal (9) is provided on a side of the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4) close to the base (1), and the input terminal (10) is provided on a side of the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4) close to the connecting column (5). The heat sink (6) located on the top of the first magnetic core (2) is fixed to the connecting column (5) by bolts, and a connecting terminal (11) is provided on one side of the bolts.

2. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 1, characterized in that: The first magnetic core (2) is made of nanocrystalline material, and the second magnetic core (3) and the third magnetic core (4) are made of nanoamorphous material.

3. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 1, characterized in that: The base (1) comprises two L-shaped fixing plates (12), and the two L-shaped fixing plates (12) are connected to the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4) by bolts.

4. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 3, characterized in that: The lengths of the output terminal (9) and the input terminal (10) are greater than the length of the L-shaped fixing plate (12).

5. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 1, characterized in that: The heat sink (6) uses integrated phase change material PCM.

6. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 1, characterized in that: Shielding layers (13) are provided in the first magnetic core (2), the second magnetic core (3) and the third magnetic core (4).

7. The high-efficiency, low-harmonic, multi-purpose high-frequency inductor according to claim 1, characterized in that: The harmonic suppressor (8) is an LC filter.

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