Magnetic assembly

Abstract

The invention discloses a magnetic assembly. The magnetic assembly comprises a magnetic core, a first winding, a second winding and a magnetic wrapping part, the magnetic core comprises a magnetic core body and a hollow part, the hollow part penetrates through the center position of the magnetic core body, the first winding surrounds part of the magnetic core body and is located on one side of the magnetic core body, and at least part of the first winding penetrates through the hollow part; the second winding wire surrounds part of the magnetic core body and is located on the other side of the magnetic core body, at least part of the second winding wire penetrates through the hollow part, and the magnetic wrapping part wraps at least part of the first winding wire and at least part of the second winding wire.

Description

Technical Field

[0001] The invention relates to a magnetic component, in particular to a magnetic component with a smaller volume. Background Art

[0002] Currently, the filter circuit in the power supply is used to suppress the electromagnetic interference generated when the switch is switched, and the filter circuit includes two-stage filter modules, the first-stage filter module includes a common-mode inductor (i.e., a common-mode magnetic component) and an X capacitor, and the second-stage filter module includes a differential-mode inductor (i.e., a differential-mode magnetic component) and a Y capacitor, and both stages of the filter modules are inserted on the main circuit board, wherein the filter circuit uses the differential-mode inductor to suppress the electromagnetic interference differential-mode noise. However, the filter circuit includes two magnetic components and has a two-stage structure, which makes it larger in size and has a larger number of components, resulting in a larger size of the overall power supply and cannot be miniaturized.

[0003] Therefore, how to develop a magnetic component that overcomes the above-mentioned shortcomings is an urgent need at present. Summary of the invention

[0004] The object of the present invention is to provide a magnetic component, which utilizes a magnetic covering portion to cover a first winding and a second winding, so that the magnetic component utilizes the arrangement of the magnetic covering portion to enhance leakage inductance and impedance during high-frequency applications, and achieves the function of suppressing differential mode noise. The magnetic component of the present invention is a single component, so that its volume is smaller and the number of components is smaller, so that the volume of a power supply using the magnetic component of the present invention is also smaller, and it is easier to achieve miniaturization and increase power density, while improving power efficiency.

[0005] To achieve the above-mentioned purpose, one embodiment of the present invention is a magnetic component, comprising a magnetic core, a first winding, a second winding and a magnetic covering portion. The magnetic core comprises a magnetic core body and a hollow portion, and the hollow portion runs through the center of the magnetic core body. The first winding surrounds a portion of the magnetic core body and is located on one side of the magnetic core body, and at least partially penetrates the hollow portion. The second winding surrounds a portion of the magnetic core body and is located on the other side of the magnetic core body, and at least partially penetrates the hollow portion. The magnetic covering portion covers at least a portion of the first winding and at least a portion of the second winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1A It is a structural schematic diagram of a magnetic component according to a first embodiment of the present invention;

[0007] Figure 1B for Figure 1A An exploded schematic diagram of the magnetic assembly shown;

[0008] Figure 2A is a schematic structural diagram of a magnetic assembly according to a second embodiment of the present invention;

[0009] Figure 2B for Figure 2A An exploded schematic diagram of the magnetic assembly shown;

[0010] Figure 3A is a schematic structural diagram of a magnetic assembly according to a third embodiment of the present invention;

[0011] Figure 3B for Figure 3A An exploded schematic diagram of the magnetic assembly shown;

[0012] Figure 4A is a schematic structural diagram of a magnetic assembly according to a fourth embodiment of the present invention;

[0013] Figure 4B for Figure 4A An exploded schematic diagram of the magnetic assembly shown;

[0014] Figure 5A is a schematic structural diagram of a magnetic assembly according to a fifth embodiment of the present invention;

[0015] Figure 5B for Figure 5A An exploded schematic diagram of the magnetic assembly shown;

[0016] Fig. 6A is a schematic structural diagram of a magnetic assembly according to a sixth embodiment of the present invention;

[0017] Figure 6B for Fig. 6A An exploded schematic diagram of the magnetic assembly shown;

[0018] Fig. 7A is a schematic structural diagram of a magnetic assembly according to a seventh embodiment of the present invention;

[0019] Figure 7B for Fig. 7A An exploded schematic diagram of the magnetic assembly shown;

[0020] Fig. 8A is a schematic structural diagram of a magnetic assembly according to an eighth embodiment of the present invention;

[0021] Figure 8B for Fig. 8A An exploded schematic diagram of the magnetic assembly shown; and Fig. 9 FIG. 4 is a schematic diagram of an exploded structure of a magnetic component according to a ninth embodiment of the present invention.

[0022] The reference numerals are as follows:

[0023] 1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h: Magnetic components

[0024] 2: Magnetic core

[0025] 21: Magnetic core body

[0026] 211: First side column

[0027] 212: Second side column

[0028] 213: First connecting column

[0029] 214: Second connecting column

[0030] 21a: Outer annulus

[0031] 21b: Inner annulus

[0032] 21c: First side

[0033] 21d: Second side

[0034] 22: Hollow part

[0035] 23: Gap

[0036] 3: First winding

[0037] 4: Second winding

[0038] 5: Magnetic coating

[0039] 51: First covering element

[0040] 52: Second covering element

[0041] 53: Opening

[0042] 71: First interval

[0043] 72: Second interval

[0044] 8: Magnetic disk

[0045] 81: Partition

[0046] 82: Protrusion

[0047] 9: Base

[0048] 91: Bottom plate

[0049] 92: Positioning element

[0050] 93: First positioning groove

[0051] 94: Second positioning slot DETAILED DESCRIPTION

[0052] Some typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can be varied in various ways without departing from the scope of the present invention, and the description and drawings are essentially for illustrative purposes rather than for limiting the present invention.

[0053] See also Figure 1A and Figure 1B ,in Figure 1A is a schematic structural diagram of a magnetic component according to a first embodiment of the present invention, Figure 1B for Figure 1A Schematic diagram of the exploded structure of the magnetic component shown in FIG. As shown in the figure, the magnetic component 1 of this embodiment includes a magnetic core 2, a first winding 3, a second winding 4 and a magnetic coating 5. The magnetic core 2 includes a magnetic core body 21 and a hollow portion 22. Figure 1B As shown, the magnetic core body 21 of the present embodiment is a hollow rectangular body, and includes a first side column 211, a second side column 212, a first connecting column 213 and a second connecting column 214. The first side column 211 and the second side column 212 are arranged opposite to each other, and the first connecting column 213 and the second connecting column 214 are arranged opposite to each other, wherein the first connecting column 213 is connected between the first end of the first side column 211 and the first end of the second side column 212, and the second connecting column 214 is connected between the second end of the first side column 211 and the second end of the second side column 212. The hollow portion 22 runs through the center of the magnetic core body 21, and is located between the first side column 211 and the second side column 212, and between the first connecting column 213 and the second connecting column 214.

[0054] The first winding 3 surrounds a portion of the magnetic core body 21, for example, surrounds the first side column 211 of the magnetic core body 21, and a portion of the first winding 3 is disposed through the hollow portion 22 and is located on one side of the magnetic core body 21. The second winding 4 surrounds another portion of the magnetic core body 21, for example, surrounds the second side column 212 of the magnetic core body 21, and a portion of the second winding 4 is disposed through the hollow portion 22 and is located on the other side of the magnetic core body 21. In this embodiment, a gap 23 is provided between the first winding 3 located in the hollow portion 22 and the second winding 4 located in the hollow portion 22.

[0055] The magnetic covering portion 5 is a single component, which may be but is not limited to being composed of a soft magnetic sheet or a magnetic tape. The magnetic covering portion 5 covers the first winding 3 and the second winding 4, and surrounds the first side column 211 and the second side column 212 of the magnetic core body 21, wherein part of the first winding 3 is located between the first side column 211 of the magnetic core body 21 and part of the magnetic covering portion 5, and part of the second winding 4 is located between the second side column 212 of the magnetic core body 21 and another part of the magnetic covering portion 5. In addition, in this embodiment, the magnetic covering portion 5 is not provided in the hollow portion 22, and the gap 23 between the first winding 3 and the second winding 4 is not provided. In this embodiment, the magnetic permeability, the number of internal structure layers, the cross-sectional area and the number of turns of the magnetic covering portion 5 are correlated with the leakage inductance of the magnetic component 1, and the magnetic component 1 can adjust the overall leakage inductance of the magnetic component 1 by changing the magnetic permeability, the number of internal structure layers, the cross-sectional area and the number of turns of the magnetic covering portion 5. In one embodiment, the magnetic component 1 includes a fixing bracket (not shown) for fixing the magnetic core 2. For example, the second connecting column 214 of the magnetic core body 21 of the magnetic core 2 is disposed on the fixing bracket so that the magnetic core 2 can be fixed on the fixing bracket.

[0056] As can be seen from the above, the magnetic covering portion 5 of the magnetic component 1 of the present invention covers the first winding 3 and the second winding 4, so that the magnetic component 1 utilizes the setting of the magnetic covering portion 5 to enhance the leakage inductance and the impedance during high-frequency applications, and achieves the function of suppressing differential-mode noise. Compared with the traditional filtering circuit that utilizes two magnetic components (a common-mode magnetic component and a differential-mode magnetic component) to achieve the function of suppressing differential-mode noise, the magnetic component 1 of the present invention is a single component, which makes its volume smaller and the number of components smaller, so that the volume of the power supply using the magnetic component 1 of the present invention is also smaller, which makes it easier to achieve miniaturization and improve power density, while improving power efficiency.

[0057] In some embodiments, the way in which the magnetic coating 5 covers the first winding 3 and the second winding 4 can be adjusted. Figure 2A and Figure 2B ,in Figure 2A is a schematic structural diagram of a magnetic component according to a second embodiment of the present invention, Figure 2B for Figure 2A The exploded structure diagram of the magnetic component is shown in FIG. Figure 1A and Figure 1BIn the magnetic component 1 shown, the magnetic covering portion 5 of the magnetic component 1a of this embodiment surrounds the first side column 211, the second side column 212, the first connecting column 213 and the second connecting column 214, wherein the first winding 3 is located between the first side column 211 of the magnetic core body 21 and a portion of the magnetic covering portion 5, and the second winding 4 is located between the second side column 212 of the magnetic core body 21 and another portion of the magnetic covering portion 5. In this embodiment, the first winding 3 is located between a portion of the magnetic covering portion 5 and the second winding 4, and the second winding 4 is located between another portion of the magnetic covering portion 5 and the first winding 3.

[0058] See also Figure 3A and Figure 3B ,in Figure 3A is a schematic structural diagram of a magnetic assembly according to a third embodiment of the present invention, Figure 3B for Figure 3A The exploded structure diagram of the magnetic component is shown in FIG. Figure 1A and Figure 1B In the magnetic component 1 shown, the magnetic covering portion 5 of the magnetic component 1b of this embodiment surrounds the first connecting column 213 and the second connecting column 214, wherein the first winding 3 is located between the first side column 211 of the magnetic core body 21 and a portion of the magnetic covering portion 5, and the second winding 4 is located between the second side column 212 of the magnetic core body 21 and another portion of the magnetic covering portion 5. In this embodiment, the first winding 3 and the second winding 4 are respectively located between a portion of the magnetic covering portion 5 and another portion of the magnetic covering portion 5.

[0059] See also Figure 4A and Figure 4B ,in Figure 4A is a schematic structural diagram of a magnetic assembly according to a fourth embodiment of the present invention, Figure 4B for Figure 4A The exploded structure diagram of the magnetic component is shown in FIG. Figure 1A and Figure 1B In the magnetic component 1 shown, the magnetic covering portion 5 of the magnetic component 1c of this embodiment includes a first covering element 51 and a second covering element 52. The first covering element 51 surrounds the first side column 211 of the magnetic core body 21, and the first winding 3 is located between the first side column 211 of the magnetic core body 21 and the first covering element 51 of the magnetic covering portion 5. The second covering element 52 surrounds the second side column 212 of the magnetic core body 21, and the second winding 4 is located between the second side column 212 of the magnetic core body 21 and the second covering element 52 of the magnetic covering portion 5. In this embodiment, at least part of the first covering element 51 and at least part of the second covering element 52 are respectively disposed in the hollow portion 22, and are disposed in the gap 23 between the first winding 3 and the second winding 4.

[0060] See also Figure 5A and Figure 5B ,in Figure 5A is a schematic structural diagram of a magnetic assembly according to a fifth embodiment of the present invention, Figure 5B for Figure 5A The exploded structure diagram of the magnetic component is shown in FIG. Figure 1A and Figure 1B The magnetic core body 21 of the magnetic core 2 of the magnetic component 1 shown is a hollow rectangular body, and the magnetic core body 21 of the magnetic core 2 of the magnetic component 1d of this embodiment is a toroidal body. The first winding 3 surrounds part of the magnetic core body 21, and part of the first winding 3 is passed through the hollow part 22, the second winding 4 surrounds another part of the magnetic core body 21, and part of the second winding 4 is passed through the hollow part 22, the first winding 3 and the second winding 4 are located on opposite sides of the magnetic core body 21 of the magnetic core 2 without contacting each other, wherein the first end 31 of the first winding 3 is located on the first side of the magnetic core body 21, the first end 41 of the second winding 4 is located on the first side of the magnetic core body 21, a first gap 71 is provided between the first end 31 of the first winding 3 and the first end 41 of the second winding 4, the second end 32 of the first winding 3 is located on the second side of the magnetic core body 21, the second end 42 of the second winding 4 is located on the second side of the magnetic core body 21, and a second gap 72 is provided between the second end 32 of the first winding 3 and the second end 42 of the second winding 4.

[0061] In the present embodiment, the magnetic core body 21 of the magnetic core 2 comprises an outer annular surface 21a, an inner annular surface 21b, a first side surface 21c and a second side surface 21d. The outer annular surface 21a surrounds the inner annular surface 21b, and the space surrounded by the inner annular surface 21b forms a hollow portion 22. The first side surface 21c and the second side surface 21d are arranged opposite to each other and are respectively connected between the outer annular surface 21a and the inner annular surface 21b. The magnetic covering portion 5 surrounds the outer annular surface 21a, the first side surface 21c and the second side surface 21d of the magnetic core body 21. In the present embodiment, the first spacer 71 and the second spacer 72 are respectively exposed to the outside of the magnetic component 1d through the two openings 53 located on both sides of the magnetic covering portion 5.

[0062] In some embodiments, the way in which the magnetic coating 5 covers the first winding 3 and the second winding 4 can be adjusted. Fig. 6A and Figure 6B ,in Fig. 6A is a schematic structural diagram of a magnetic assembly according to a sixth embodiment of the present invention, Figure 6B for Fig. 6A The exploded structure diagram of the magnetic component is shown in FIG. Figure 5A and Figure 5BIn the magnetic component 1d shown in the figure, the first interval 71 and the second interval 72 of the magnetic component 1e of this embodiment are covered by the magnetic covering portion 5 and are not exposed to the outside of the magnetic component 1d, while the first winding 3 and the second winding 4 are exposed to the outside of the magnetic component 1e respectively through the two openings 53 located on both sides of the magnetic covering portion 5.

[0063] See also Fig. 7A and Figure 7B ,in Fig. 7A is a schematic structural diagram of a magnetic assembly according to a seventh embodiment of the present invention, Figure 7B for Fig. 7A The exploded structure diagram of the magnetic component is shown in FIG. Figure 5A and Figure 5B In the magnetic component 1d shown, the magnetic covering portion 5 of the magnetic component 1f of this embodiment surrounds the outer annular surface 21a of the magnetic core body 21, wherein a portion of the first winding 3 is located between the outer annular surface 21a of the magnetic core body 21 and the magnetic covering portion 5, and a portion of the second winding 4 is located between the outer annular surface 21a of the magnetic core body 21 and the magnetic covering portion 5. In this embodiment, the first winding 3 is located between a portion of the magnetic covering portion 5 and the second winding 4, and the second winding 4 is located between another portion of the magnetic covering portion 5 and the first winding 3.

[0064] See also Fig. 8A and Figure 8B ,in Fig. 8A is a schematic structural diagram of a magnetic assembly according to an eighth embodiment of the present invention, Figure 8B for Fig. 8A The exploded structure diagram of the magnetic component is shown in FIG. Figure 5A and Figure 5B In the magnetic component 1d shown, the magnetic covering portion 5 of the magnetic component 1g of this embodiment includes a first covering element 51 and a second covering element 52. The first covering element 51 surrounds the first winding 3, and the first winding 3 is located between the magnetic core body 21 and the first covering element 51 of the magnetic covering portion 5. The second covering element 52 surrounds the second winding 4, and the second winding 4 is located between the magnetic core body 21 and the second covering element 52 of the magnetic covering portion 5. In this embodiment, at least part of the first covering element 51 and at least part of the second covering element 52 are disposed in the hollow portion 22.

[0065] See also Fig. 9 ,in Fig. 9 FIG. 1 is a schematic diagram of the exploded structure of the magnetic assembly of the ninth embodiment of the present invention. Fig. 6A and Figure 6BThe magnetic assembly 1e shown in the figure, the magnetic assembly 1h of this embodiment further includes a magnetic sheet 8 and a base 9. The magnetic sheet 8 is disposed in the hollow portion 22 of the magnetic core 2, and includes a partition 81 and a protrusion 82. The extension direction of the partition 81 is from the first interval 71 to the direction of the second interval 72. The protrusion 82 is formed by the surface of the partition 81 extending in a direction perpendicular to the partition 81. The base 9 includes a bottom plate 91 and a plurality of positioning elements 92, wherein the plurality of positioning elements 92 extend from the surface of the bottom plate 91 in a direction perpendicular to the bottom plate 91, respectively, and the plurality of positioning elements 92 jointly define a first positioning groove 93 and a second positioning groove 94, wherein the first positioning groove 93 matches the partition 81 of the magnetic sheet 8, and the second positioning groove 94 matches the protrusion 82 of the magnetic sheet 8, wherein the partition 81 of the magnetic sheet 8 is arranged in the first positioning groove 93, and the protrusion 82 of the magnetic sheet 8 is arranged in the second positioning groove 94, and the magnetic sheet 8 is tightly fitted between the plurality of positioning elements 92 using the partition 81 and the protrusion 82 to be connected to the base 9.

[0066] In summary, the magnetic covering portion of the magnetic component of the present invention covers the first winding and the second winding, so that the magnetic component utilizes the setting of the magnetic covering portion to improve the leakage inductance and the impedance during high-frequency applications, and achieves the function of suppressing differential mode noise. In addition, the magnetic component of the present invention is a single component, so its volume is smaller and the number of components is smaller, so that the volume of the power supply using the magnetic component of the present invention is also smaller, which makes it easier to achieve miniaturization and improve power density, while improving power efficiency.

Claims

1. A magnetic component, comprising: A magnetic core, comprising a magnetic core body and a hollow portion, wherein the hollow portion runs through the center of the magnetic core body; A first winding, which surrounds a portion of the magnetic core body and is located on one side of the magnetic core body, and at least partially passes through the hollow portion; a second winding, which surrounds a portion of the magnetic core body and is located on the other side of the magnetic core body, and at least partially passes through the hollow portion; and A magnetic covering portion covers at least a portion of the first winding and at least a portion of the second winding.

2. A magnetic component as described in claim 1, wherein the magnetic core body of the magnetic core includes a first side column, a second side column, a first connecting column and a second connecting column, the first side column and the second side column are arranged opposite to each other, the first connecting column and the second connecting column are arranged opposite to each other and are respectively connected between the first side column and the second side column, wherein the hollow portion is located between the first side column and the second side column, and between the first connecting column and the second connecting column, the first winding is wrapped around the first side column, and part of the first winding is passed through the hollow portion, the second winding is wrapped around the second side column, and part of the second winding is passed through the hollow portion. 3 . The magnetic component as claimed in claim 2 , wherein a gap is formed between the first winding located in the hollow portion and the second winding located in the hollow portion.

4. A magnetic component as described in claim 2, wherein the magnetic covering portion surrounds the first side column and the second side column, wherein a portion of the first winding is located between the first side column and the magnetic covering portion, a portion of the second winding is located between the second side column and the magnetic covering portion, and the first winding is located between a portion of the magnetic covering portion and the second winding, and the second winding is located between another portion of the magnetic covering portion and the first winding.

5. A magnetic component as described in claim 2, wherein the magnetic covering portion surrounds the first side column, the second side column, the first connecting column and the second connecting column, wherein the first winding is located between the first side column and the magnetic covering portion, the second winding is located between the second side column and the magnetic covering portion, and the first winding is located between a portion of the magnetic covering portion and the second winding, and the second winding is located between another portion of the magnetic covering portion and the first winding.

6. A magnetic component as described in claim 2, wherein the magnetic covering portion surrounds the first connecting column and the second connecting column, wherein the first winding is located between the first side column and the magnetic covering portion, the second winding is located between the second side column and the magnetic covering portion, and the first winding and the second winding are respectively located between a portion of the magnetic covering portion and another portion of the magnetic covering portion. 7 . The magnetic component as claimed in claim 4 , wherein a gap is provided between the first winding located in the hollow portion and the second winding located in the hollow portion, and the magnetic covering portion does not penetrate the gap.

8. A magnetic component as described in claim 3, wherein the magnetic covering portion includes a first covering element and a second covering element, the first covering element surrounds the first side column, the first winding is located between the first side column and the first covering element, the second covering element surrounds the second side column, the second winding is located between the second side column and the second covering element, wherein at least a portion of the first covering element and at least a portion of the second covering element are respectively inserted into the gap.

9. A magnetic component as described in claim 1, wherein the magnetic core body of the magnetic core is a toroidal body, the first winding is wrapped around a portion of the magnetic core body, and a portion of the first winding is passed through the hollow portion, the second winding is wrapped around another portion of the magnetic core body, and a portion of the second winding is passed through the hollow portion, the first winding and the second winding are located on opposite sides of the magnetic core body without contacting each other, wherein a first end of the first winding is located on a first side of the magnetic core body and a first end of the second winding is located on the first side of the magnetic core body, a first gap is formed between the first end of the first winding and the first end of the second winding, a second end of the first winding is located on a second side of the magnetic core body and a second end of the second winding is located on the second side of the magnetic core body, and a second gap is formed between the second end of the first winding and the second end of the second winding.

10. A magnetic component as described in claim 9, wherein the magnetic core body of the magnetic core includes an outer annular surface, an inner annular surface, a first side surface and a second side surface, the outer annular surface surrounds the inner annular surface, the first side surface and the second side surface are arranged opposite to each other and are respectively connected between the outer annular surface and the inner annular surface, the magnetic covering portion surrounds part of the outer annular surface, the first side surface and the second side surface, wherein the first gap and the second gap are respectively exposed to the outside of the magnetic component through an opening of the magnetic covering portion.

11. A magnetic component as described in claim 9, wherein the magnetic core body of the magnetic core includes an outer annular surface, an inner annular surface, a first side surface and a second side surface, the outer annular surface surrounds the inner annular surface, the first side surface and the second side surface are arranged opposite to each other and are respectively connected between the outer annular surface and the inner annular surface, the magnetic covering portion surrounds part of the outer annular surface, the first side surface and the second side surface, wherein the first winding and the second winding are respectively exposed to the outside of the magnetic component through an opening of the magnetic covering portion.

12. A magnetic component as described in claim 9, wherein the magnetic core body of the magnetic core includes an outer annular surface, an inner annular surface, a first side surface and a second side surface, the outer annular surface surrounds the inner annular surface, the first side surface and the second side surface are arranged opposite to each other and are respectively connected between the outer annular surface and the inner annular surface, the magnetic covering portion surrounds the outer annular surface, wherein a portion of the first winding is located between the outer annular surface and the magnetic covering portion, and a portion of the second winding is located between the outer annular surface and the magnetic covering portion, wherein the first winding is located between a portion of the magnetic covering portion and the second winding, and the second winding is located between another portion of the magnetic covering portion and the first winding. 13 . The magnetic assembly as claimed in claim 10 , wherein the magnetic covering portion does not penetrate the hollow portion.

14. A magnetic component as described in claim 9, wherein the magnetic covering portion includes a first covering element and a second covering element, the first covering element surrounds the first winding, the first winding is located between the magnetic core body and the first covering element, the second covering element surrounds the second winding, the second winding is located between the magnetic core body and the second covering element, wherein at least a portion of the first covering element and at least a portion of the second covering element are respectively passed through the hollow portion.

15. A magnetic component as described in claim 9, wherein the magnetic component includes a magnetic sheet, the magnetic sheet is arranged in the hollow portion, and includes a partition and a protrusion, the extension direction of the partition is from the first interval toward the second interval, and the protrusion is formed by a surface of the partition extending toward a direction perpendicular to the partition.

16. A magnetic component as described in claim 15, wherein the magnetic component includes a base, the base includes a bottom plate and a plurality of positioning elements, the plurality of positioning elements respectively extend from a surface of the bottom plate in a direction perpendicular to the bottom plate, the plurality of positioning elements jointly define a first positioning groove and a second positioning groove, wherein the first positioning groove matches the partition, and the second positioning groove matches the protrusion, wherein the partition is arranged in the first positioning groove, the protrusion is arranged in the second positioning groove, and the magnetic sheet is tightly fitted between the plurality of positioning elements using the partition and the protrusion to be connected to the base.

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