TWM630710U - Magnetic assembly - Google Patents

Abstract

A magnetic assembly includes a first magnetic core, a second magnetic core, at least one circuit board and a plurality of pillars. The second magnetic core and the first magnetic core are assembled with each other to define an internal space. The circuit board is arranged in the internal space. The circuit board has a plurality of through holes separated from each other. The pillars are located in the inner space and respectively correspond to the through holes passing through the circuit board, and a plurality of air gaps are formed between the pillars or between the pillars and at least one of the first magnetic core and the second magnetic core.

Description

Magnetic components

The present invention relates to a magnetic component, and in particular, to a thinned magnetic component.

Today's electronic products often use various magnetic components, such as transformers, inductance components, etc., to meet the required circuit design by the principle of electromagnetic induction. Existing magnetic components use a single air gap formed between the central legs of the two magnetic cores to avoid magnetic saturation. However, if the single air gap is too large, it will cause higher magnetic loss, resulting in increased energy loss. Furthermore, the current magnetic element with an air gap needs to use a winding set, wherein the coil is wound on the winding frame, and the winding frame is fixed between the two magnetic cores, so it cannot effectively achieve thinning. In order to cope with the thinning of electrical equipment, the magnetic components and windings used inside must also develop toward thinning, so as to reduce the overall volume of electrical equipment. Therefore, how to reduce the magnetic loss and leakage inductance while improving the efficiency and reducing the thickness of the magnetic component has become one of the urgent problems to be solved in the art.

The novel creation provides a magnetic component, which has the advantages of high efficiency, low leakage inductance and low magnetic loss, and can meet the requirement of thinning.

A magnetic component created by the present invention includes: a first magnetic core, a second magnetic core, at least one circuit board and a plurality of cylinders. The second magnetic core and the first magnetic core are assembled with each other to define an inner space. The circuit board is disposed in the inner space, wherein the circuit board has a plurality of through holes separated from each other. The pillars are located in the inner space and correspond to the through holes passing through the circuit board respectively, and a plurality of air gaps are formed between the pillars or between the pillars and at least one of the first magnetic core and the second magnetic core.

In an embodiment of the present invention, the above-mentioned columns have the same height and are disposed on the first magnetic core. The cylinder and the second magnetic core form an air gap of the same distance.

In an embodiment of the present invention, the above-mentioned columns have the same height and are disposed on the second magnetic core. The cylinder and the first magnetic core form an air gap with the same distance.

In an embodiment of the present invention, the above-mentioned pillars have the same height, and the air gap includes a plurality of first air gaps and a plurality of second air gaps. The column body and the first magnetic core form a first air gap with the same distance, and the column body and the second magnetic core form a second air gap with the same distance, and the distance between the first air gap and the second air gap is the same.

In an embodiment of the present invention, the above-mentioned pillars have the same height, and the air gap includes a plurality of first air gaps and a plurality of second air gaps. The column and the first magnetic core form a first air gap with the same distance, and the column and the second magnetic core form a second air gap with the same distance, and the distance of the first air gap is different from that of the second air gap.

In an embodiment of the present invention, the above-mentioned column body includes a plurality of first column bodies and a plurality of second column bodies. The first column is arranged on the first magnetic core, and the second column is It is arranged on the second magnetic core, and the first column body corresponds to the second column body to form an air gap with the same distance.

In an embodiment of the present invention, the above-mentioned pillars have the same height, and the pillars include at least one first pillar and at least one second pillar. The air gap includes at least one first air gap and at least one second air gap. The first column is arranged on the first magnetic core, and the second column is arranged on the second magnetic core. The first cylinder and the second magnetic core form a first air gap, and the second cylinder and the first magnetic core form a second air gap, and the distance between the first air gap and the second air gap is the same.

In an embodiment of the present invention, the first cylinder and the first magnetic core are integrally formed, and the second cylinder and the second magnetic core are integrally formed.

In an embodiment of the present invention, the above-mentioned column body includes at least one first column body and at least one second column body, and the height of the first column body is different from the height of the second column body. The air gap includes at least one first air gap and at least one second air gap. One of the first cylinder and the second cylinder is disposed on the first magnetic core, and the other of the first cylinder and the second cylinder is disposed on the second magnetic core. The first cylinder forms a first air gap with one of the first magnetic core and the second magnetic core, and the second cylinder forms a second air gap with the other of the first magnetic core and the second magnetic core, And the spacing of the first air gap is different from the spacing of the second air gap.

In an embodiment of the present invention, the above-mentioned first cylinder and one of the first magnetic core and the second magnetic core are integrally formed, and the second cylinder and the first magnetic core and the second magnetic core are formed integrally. The other is formed in one piece.

In an embodiment of the present invention, the above-mentioned first magnetic core and second magnetic core One of the cores is in the shape of a flat plate, and the other of the first magnetic core and the second magnetic core is in the shape of a groove.

In an embodiment of the present invention, the above-mentioned first magnetic core and second magnetic core are respectively in the shape of grooves.

In an embodiment of the present invention, the above-mentioned magnetic component further includes a plurality of connecting elements. The periphery of the circuit board further has a plurality of connection holes, and the connection pieces pass through the connection holes correspondingly.

Based on the above, in the design of the magnetic component created by the present invention, a plurality of cylinders respectively correspond to the through holes passing through the circuit board, and at least among the cylinders or between the cylinders and the first magnetic core and the second magnetic core A plurality of air gaps are formed therebetween. Thereby, the working efficiency of the magnetic component created by the present invention can be improved, and has the advantages of high efficiency, low magnetic loss and low leakage inductance.

In order to make the above-mentioned features and advantages of the novel creation more obvious and easy to understand, the following examples are given and described in detail with the accompanying drawings as follows.

100a, 100b, 100c, 100d, 100e, 100f, 200a, 200b, 200c, 200d, 200e, 200f: Magnetic components

110a, 110c, 210a, 210b, 210c, 210d, 210e, 210f: first magnetic core

120a, 120d, 220a, 220b, 220c, 220d, 220e, 220f: second magnetic core

130, 230: circuit board

132, 232: through hole

134, 234: connecting hole

140a, 140b, 140c, 140d, 140e, 140f: Cylinder

242a, 242b, 242c, 242d, 242e, 242f: the first cylinder

244a, 244b, 244c, 244d, 244e, 244f: Second cylinder

150, 250: Connector

A1, A2, A3, A4, B1, B2: Air gap

A51, A61, B31, B41, B51, B61: first air gap

A52, A62, B32, B42, B52, B62: Second air gap

H, H1, H2, H3, H4: height

S1, S2: Internal space

FIG. 1A is a schematic perspective view of a magnetic component according to an embodiment of the present invention.

FIG. 1B is an exploded schematic view of the magnetic assembly of FIG. 1A .

1C is a schematic cross-sectional view of the magnetic assembly of FIG. 1A along line A-A.

2A is a schematic cross-sectional view of a magnetic component according to an embodiment of the present invention picture.

2B is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

2C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

2D is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

2E is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

3A is an exploded schematic diagram of a magnetic component according to another embodiment of the present invention.

FIG. 3B is a schematic cross-sectional view of the magnetic assembly of FIG. 3A .

3C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

4A is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

4B is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

4C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

4D is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention.

FIG. 1A is a schematic perspective view of a magnetic component according to an embodiment of the present invention. FIG. 1B is an exploded schematic view of the magnetic assembly of FIG. 1A . 1C is a schematic cross-sectional view of the magnetic assembly of FIG. 1A along line A-A. 1A , 1B and 1C at the same time, in this embodiment, the magnetic component 100 a includes a first magnetic core 110 a , a second magnetic core 120 a , and at least one circuit board 130 (a plurality of circuit boards are schematically shown) 130) and a plurality of pillars 140a. The second magnetic core 120a and the first magnetic core 110a are assembled together to define an inner space S1. The circuit boards 130 are stacked corresponding to each other and disposed in the inner space S1. Each circuit board 130 has a plurality of through holes 132 separated from each other, and the through holes 132 of the circuit board 130 are disposed corresponding to each other. The pillars 140a are located in the inner space S1 and correspond to the through holes 132 passing through the circuit board 130, respectively, and between the pillars 140a or at least one of the pillars 140a and the first magnetic core 110a and the second magnetic core 120a A plurality of air gaps A1 are formed therebetween.

In detail, in this embodiment, one of the first magnetic core 110a and the second magnetic core 120a has a flat plate shape, and the other of the first magnetic core 110a and the second magnetic core 120a has a concave shape slotted. Here, the first magnetic core 110a is in the shape of a flat plate, while the second magnetic core 120a is in the shape of a groove, and the second magnetic core 120a and the first magnetic core 110a are assembled together to define a U-shaped inner space S1, but Not limited to this. The materials of the first magnetic core 110a and the second magnetic core 120a are, for example, ferrite, silicon steel sheet or iron-nickel alloy, but the invention is not limited thereto.

Furthermore, the circuit board 130 is, for example, a printed circuit board, wherein these circuit boards 130 are in direct contact with each other and stacked on each other. Here, the circuit boards 130 have the same size, but not limited thereto, as long as the through holes 132 on the circuit boards 130 can correspond to each other. In particular, the pillars 140a of the present embodiment have the same height and are disposed on the first magnetic core 110a, wherein the pillars 140a correspond to the through holes 132 passing through the circuit board 130 respectively, and the pillars 140a and the second magnetic Air gaps A1 of the same pitch are formed between the cores 120a. Here, the material of the column body 140a is, for example, ferrite, silicon steel sheet or iron-nickel alloy, but the present invention is not limited thereto. In some embodiments, the material of the column 140a may be the same as or different from the material of the first magnetic core 110a and the second magnetic core 120a, which is not limited thereto.

It should be noted that, as shown in FIG. 1B , in this embodiment, the shape of the through hole 132 on each circuit board 130 is a square, and the shape of the column 140 a is a cube, but it is not limited thereto. In other not-shown embodiments, the shape of the through hole 132 may be a circle or other suitable shapes, and the shape of the column 140a may be a cylinder or other suitable shapes; or, the shape of the through hole 132 may be the same as The shapes of the pillars 140a do not correspond to each other. For example, the shape of the through hole 132 is a square, and the shape of the pillar 140a is a cylinder, which still belongs to the scope of the present invention. Furthermore, the through holes 132 on the circuit board 130 are arranged in a matrix, but not limited thereto. In other not-shown embodiments, the through holes 132 on the circuit board 130 may be arranged regularly or irregularly, as long as the number of the pillars 140a is the same as the number of the through holes 132 and the through holes 132 are arranged correspondingly, all belong to the present invention. The scope of protection for new creations. In addition, the pillars 140a can be fixed in the through holes 132 of the circuit board 130 through an adhesive material (not shown) or other suitable means.

In addition, please refer to FIGS. 1A and 1B at the same time, the magnetic assembly of this embodiment The component 100a further includes a plurality of connecting components 150, and each circuit board 130 further has a plurality of connecting holes 134 around it. The connection holes 134 of each circuit board 130 are disposed correspondingly to each other, and the connection members 150 respectively pass through the connection holes 134 correspondingly. Here, the connecting member 150 and the connecting hole 134 are both located outside the first magnetic core 110 a and the second magnetic core 120 a , and the circuit board 130 can be electrically connected to an external circuit through the connecting member 150 .

Generally speaking, since the magnetic flux of the air-gap leakage magnetic flux is equivalent to a semicircle or an arcuate shape with the gap of the air gap as a straight side on the cross section of the magnetic core, as the height of the air gap increases, the horizontal leakage magnetic flux The cross-sectional area increases in square multiples, and for the actual three-dimensional space, it increases in cubic multiples. Therefore, in this embodiment, multiple air gaps A1 with a single pitch are formed through multiple pillars 140 a, which can not only prevent the magnetic saturation, but also greatly reduce and disperse the leakage flux loss, reduce the diffused magnetic flux, and make the magnetic components 100a has low leakage inductance and low magnetic loss, thereby improving work efficiency.

In short, in the present embodiment, the coils in the prior art are replaced by the columns 140a corresponding to the through holes 132 passing through the circuit board 130 , which not only makes the magnetic component 100a thinner, but also has the advantage of convenient assembly. In addition, the plurality of pillars 140a to form a plurality of air gaps A1 with a single pitch, in addition to the effect of preventing magnetic saturation, the magnetic device 100a can also have the advantages of high efficiency, low magnetic loss and low leakage inductance.

It must be noted here that the following embodiments use the element numbers and part of the contents of the previous embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and repeated descriptions in the following embodiments will not be repeated.

2A is a cross-section of a magnetic component according to an embodiment of the present invention Schematic. Please refer to FIG. 1C and FIG. 2A at the same time, the magnetic component 100b of this embodiment is similar to the magnetic component 100a of the above-mentioned embodiment, the difference between the two is: in this embodiment, the column 140b is disposed on the second magnetic core 120a, And the cylinder 140b and the first magnetic core 110a form an air gap A2 with the same distance.

2B is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 1C and FIG. 2B at the same time. The magnetic component 100c of this embodiment is similar to the magnetic component 100a of the above-mentioned embodiment. And an air gap A3 with the same distance is formed between the column body 140c and the second magnetic core 120a. That is to say, the column body 140c and the first magnetic core 110c in this embodiment have the same material. By forming the column body 140c and the first magnetic core 110c in one piece, the assembly yield between the column body 140c and the circuit board 130 can be improved to prevent the column body 140c from falling off the circuit board 130 .

2C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 2A and FIG. 2C at the same time, the magnetic assembly 100d of this embodiment is similar to the magnetic assembly 100b of the above-mentioned embodiment. In addition, an air gap A4 with the same distance is formed between the column body 140d and the first magnetic core 110a. That is to say, the column body 140d and the second magnetic core 120d in this embodiment have the same material. By integrally forming the column body 140d and the second magnetic core 120d, the assembly yield between the column body 140d and the circuit board 130 can be improved to prevent the column body 140d from falling off the circuit board 130.

2D is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 1C and FIG. 2D at the same time, the magnetic component 100e of this embodiment Similar to the magnetic assembly 100a of the above-mentioned embodiment, the difference between the two is that the air gap of this embodiment includes a plurality of first air gaps A51 and a plurality of second air gaps A52. The column 140e and the first magnetic core 110a form a first air gap A51 with the same distance, and the column 140e and the second magnetic core 120a form a second air gap A52 with the same distance, and the distance between the first air gap A51 and the second The spacing of the air gaps A52 is the same. Here, the column 140e is fixed in the through hole 132 of the circuit board 130 without contacting the first magnetic core 110a and the second magnetic core 120a. That is to say, in this embodiment, the first air gap A51 and the second air gap A52 with the same spacing are formed through the plurality of pillars 140e, which not only prevents the magnetic saturation, but also enables the magnetic component 100e to have high efficiency and a thin profile It has the advantages of chemistry, easy assembly, high process production efficiency, low magnetic loss and low leakage inductance.

2E is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 2D and FIG. 2E at the same time, the magnetic component 100f of this embodiment is similar to the magnetic component 100e of the above-mentioned embodiment, and the difference between the two is that the first gas formed by the column 140f of this embodiment and the first magnetic core 110a is The interval of the gap A61 is different from the interval of the second air gap A62 formed by the column 140f and the second magnetic core 120a. Here, the column 140f is relatively close to the second magnetic core 120a, so that the distance between the first air gaps A61 is greater than the distance between the second air gaps A62. That is to say, in this embodiment, the first air gap A61 and the second air gap A62 with different distances are formed through the plurality of pillars 140f, which not only prevents the magnetic saturation, but also enables the magnetic component 100f to have high efficiency and a thin profile. It has the advantages of chemistry, easy assembly, high process production efficiency, low magnetic loss and low leakage inductance.

3A is an exploded schematic diagram of a magnetic component according to another embodiment of the present invention. FIG. 3B is a schematic cross-sectional view of the magnetic assembly of FIG. 3A . Please also refer to Referring to FIG. 1B and FIG. 3A , the magnetic component 200 a of this embodiment is similar to the magnetic component 100 a of the above-mentioned embodiment, the difference between the two is that the first magnetic core 210 a and the second magnetic core 220 a of this embodiment both have a concave It is groove-shaped, and the column body includes a plurality of first column bodies 242a and a plurality of second column bodies 244a. In detail, please refer to FIG. 3A and FIG. 3B at the same time, each circuit board 230 has a plurality of through holes 232 separated from each other, and the through holes 232 of the circuit board 230 are arranged corresponding to each other. The first magnetic core 210a and the second magnetic core 220a are assembled with each other to define an inner space S2, and the circuit board 230, the first cylinder 242a and the second cylinder 244a correspondingly stacked are located in the inner space S2. The connection holes 234 of the circuit board 230 are located outside the first magnetic core 210a and the second magnetic core 220a, and the connection members 250 respectively pass through the connection holes 234, so that the circuit board 230 can be electrically connected to external circuits. Furthermore, in this embodiment, the first column 242a is disposed on the first magnetic core 210a, and the first column 242a and the first magnetic core 210a are integrally formed. The second column 244a is disposed on the second magnetic core 220a, and the second column 244a and the second magnetic core 220a are integrally formed. The number of the first pillars 242a corresponds to the number of the second pillars 244a, and the first pillars 242a correspond to the second pillars 244a to form air gaps B1 with the same spacing. Therefore, the magnetic component 200a of this embodiment has the advantages of high efficiency, thinning, easy assembly, high process production efficiency, low magnetic loss, and low leakage inductance.

3C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 3B and FIG. 3C at the same time. The magnetic assembly 200b of this embodiment is similar to the magnetic assembly 200a of the above-mentioned embodiment. The difference between the two is that in this embodiment, the first column 242b is disposed on the first magnetic core 210b, and the first column 242b and the first magnetic core 210b are independent components. The second column 244b is disposed on the second On the magnetic core 220b, the second cylinder 244b and the second magnetic core 220b are independent components. The first pillars 242b correspond to the second pillars 244b to form air gaps B2 with the same spacing.

4A is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 3C and FIG. 4A at the same time, the magnetic component 200c of this embodiment is similar to the magnetic component 200b of the above-mentioned embodiment, and the difference between the two is: in this embodiment, the number of the first column 242c is different from that of the second The number of cylinders 244c. For example, the first column 242c in this embodiment is schematically shown as one, and the second column 244c is schematically shown as two, but it is not limited thereto. The first column 242c is disposed on the first magnetic core 210c, and the first column 242c and the second magnetic core 220c form at least one first air gap B31 (one first air gap B31 is schematically shown). The second column 244c is disposed on the second magnetic core 220c, and the second column 244c and the first magnetic core 210c form at least one second air gap B32 (two second air gaps B32 are schematically shown). Here, the pitch of the first air gap B31 is the same as the pitch of the second air gap B32. In detail, the first cylinder 242c and the second cylinder 244c in this embodiment are staggered, so that the orthographic projection of the first cylinder 242c on the second magnetic core 220c does not overlap with the second cylinder 244c. That is to say, in this embodiment, the first air gap B31 and the second air gap B32 with the same spacing are formed through the first column body 242c and the second column body 244c. In addition to the effect of preventing magnetic saturation, the magnetic component can also be 200c has the advantages of high efficiency, thinning, easy assembly, high process production efficiency, low magnetic loss and low leakage inductance.

4B is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 4A and FIG. 4B at the same time, the magnetic component 200d of this embodiment and the magnetic component 200c of the above-mentioned embodiment are different in that the first A cylinder 242d is integrally formed with the first magnetic core 210d, and a second cylinder 244d is integrally formed with the second magnetic core 220d. The first cylinder 242d and the second magnetic core 220d form a first air gap B41, and the second cylinder 244d and the first magnetic core 210d form a second air gap B42, and the distance between the first air gap B41 and the second air gap is B42 has the same spacing.

4C is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 4A and FIG. 4C at the same time. The difference between the magnetic assembly 200e of this embodiment and the magnetic assembly 200c of the above-mentioned embodiment is that the height H1 of the first cylinder 242e of this embodiment is greater than the height H1 of the second cylinder 244e height H2, so that the pitch of the first air gap B51 is different from the pitch of the second air gap B52. In detail, the first cylinder 242e and the second magnetic core 220e form a first air gap B51, and the second cylinder 244e and the first magnetic core 210e form a second air gap B52, and the distance between the first air gaps B51 is less than The pitch of the second air gap B52. That is to say, in this embodiment, the first air gap B51 and the second air gap B52 with different distances are formed through the first cylinder 242e and the second cylinder 244e, which can not only prevent the magnetic saturation, but also make the magnetic components 200e has the advantages of high efficiency, thin profile, easy assembly, high process production efficiency, low magnetic loss and low leakage inductance.

4D is a schematic cross-sectional view of a magnetic component according to another embodiment of the present invention. Please refer to FIG. 4B and FIG. 4D at the same time, the magnetic assembly 200f of this embodiment is similar to the magnetic assembly 200d of the above-mentioned embodiment, the difference between the two is that the height H3 of the first column 242f of this embodiment is greater than that of the second column 244f The height H4 of the first air gap B61 is different from that of the second air gap B62. In detail, the first cylinder 242f and the second magnetic core 220f form a first air gap B61, and the second cylinder 244f and the first magnetic core 210f form a second air gap B62, and the distance between the first air gaps B61 is smaller than The pitch of the second air gap B62. That is to say, in this embodiment, the first air gap B61 and the second air gap B62 with different spacings are formed through the first cylinder 242f and the second cylinder 244f, which can not only prevent the magnetic saturation, but also make the magnetic components 200f has the advantages of high efficiency, thinning, easy assembly, high process production efficiency, low magnetic loss and low leakage inductance.

To sum up, in the design of the magnetic component created by the present invention, a plurality of cylinders respectively correspond to the through holes passing through the circuit board, and between the cylinders or between the cylinders and the first magnetic core and the second magnetic core A plurality of air gaps are formed between at least one of them. Thereby, the working efficiency of the magnetic component created by the present invention can be improved, and has the advantages of high efficiency, low magnetic loss and low leakage inductance. In addition, by replacing the existing winding sets with circuit boards stacked on each other, the effect of thinning can be achieved, so that the magnetic component created by the present invention can meet the current thinning requirements for electrical equipment.

Although the present invention has been disclosed above with examples, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the new creation should be determined by the scope of the appended patent application.

100a: Magnetic components

110a: first magnetic core

120a: second magnetic core

130: circuit board

132: Through hole

140a: Cylinder

A1: Air gap

H: height

S1: Internal space

Claims (13)

A magnetic assembly comprising: a first magnetic core; a second magnetic core assembled with the first magnetic core to define an inner space; at least one circuit board disposed in the inner space, wherein the at least one circuit board has a plurality of through holes separated from each other; and A plurality of cylinders are located in the inner space and respectively pass through the through holes of the at least one circuit board, and between the cylinders or between the cylinders and the first magnetic core and the first magnetic core A plurality of air gaps are formed between at least one of the two magnetic cores. The magnetic component of claim 1, wherein the columns have the same height and are disposed on the first magnetic core, and the columns and the second magnetic core form the air gaps with the same distance. The magnetic assembly of claim 1, wherein the pillars have the same height and are disposed on the second magnetic core, and the pillars and the first magnetic core form the air gaps with the same distance. The magnetic assembly of claim 1, wherein the pillars have the same height, the air gaps include a plurality of first air gaps and a plurality of second air gaps, the pillars and the first magnetic core The first air gaps with the same spacing are formed, and the pillars and the second magnetic core form the second air gaps with the same spacing, and the spacing of the first air gaps is the same as that of the second air gaps. The spacing is the same. The magnetic assembly of claim 1, wherein the pillars have the same height, the air gaps include a plurality of first air gaps and a plurality of second air gaps, the pillars and the first magnetic core The first air gaps with the same spacing are formed, the pillars and the second magnetic core form the second air gaps with the same spacing, and the spacing of the first air gaps is different from the second air gaps Pitch. The magnetic assembly of claim 1, wherein the cylinders comprise a plurality of first cylinders and a plurality of second cylinders, the first cylinders are disposed on the first magnetic core, and the second cylinders The cylinders are disposed on the second magnetic core, and the first cylinders correspond to the second cylinders to form the air gaps with the same spacing. The magnetic assembly of claim 1, wherein the pillars have the same height, the pillars include at least a first pillar and at least a second pillar, and the air gaps include at least a first air gap and at least one second air gap, the at least one first column is configured on the first magnetic core, the at least one second column is configured on the second magnetic core, and the first column and the second The magnetic core forms the at least one first air gap, the at least one second cylinder and the first magnetic core form the at least one second air gap, and the distance between the at least one first air gap and the at least one second air gap is The spacing of the air gaps is the same. The magnetic assembly of claim 7, wherein the at least one first column is integrally formed with the first magnetic core, and the at least one second column is integrally formed with the second magnetic core. The magnetic assembly of claim 1, wherein the columns include at least one first column and at least one second column, and the height of the at least one first column is different from the height of the at least one second column , the air gaps include at least one first air gap and at least one second air gap, one of the at least one first column and the at least one second column is disposed on the first magnetic core, and the The other one of the at least one first column and the at least one second column is disposed on the second magnetic core, and the at least one first column and one of the first magnetic core and the second magnetic core one forms the at least one first air gap, the at least one second cylinder and the other one of the first magnetic core and the second magnetic core form the at least one second air gap, and the at least one first air gap The spacing of the gaps is different from the spacing of the at least one second air gap. The magnetic assembly of claim 9, wherein the at least one first column is integrally formed with one of the first magnetic core and the second magnetic core, and the at least one second column is formed with the first magnetic core The other one of the core and the second magnetic core is integrally formed. The magnetic assembly as claimed in claim 1, wherein one of the first magnetic core and the second magnetic core presents a flat plate shape, and the other of the first magnetic core and the second magnetic core presents a grooved. The magnetic component of claim 1, wherein the first magnetic core and the second magnetic core respectively present a groove shape. The magnetic assembly as claimed in claim 1, further comprising: For a plurality of connecting pieces, the at least one circuit board further has a plurality of connecting holes around the at least one circuit board, wherein the connecting pieces pass through the connecting holes correspondingly.

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