CN214897999U - Magnetic assembly, inductor and transformer - Google Patents

Abstract

The utility model relates to a magnetic device technical field specifically discloses a magnetic component and inductor and transformer. The magnetic assembly comprises a magnetic core part, an insulating heat-conducting bracket and a winding coil; the magnetic core part is provided with a seat body structure and a center pillar structure, and the center pillar structure is convexly arranged on the seat body structure; the partial end surface of the insulating heat conduction support is connected with the seat body structure, the insulating heat conduction support is sleeved on the center pillar structure, and a gap is formed between the insulating heat conduction support and the center pillar structure to form a heat dissipation channel; and the winding coil is wound on the insulating heat-conducting bracket. The utility model discloses a magnetic component has characteristics such as the radiating effect is good and small, can make the volume of inductor or transformer become littleer to satisfy the demand of circuit miniaturization development effectively.

Description

Magnetic assembly, inductor and transformer

Technical Field

The utility model relates to a magnetic device technical field especially relates to a magnetic component and inductor and transformer.

Background

The functions of the inductor and the transformer in the circuit include energy storage, filtering, energy conversion, electrical isolation and the like, and have important functions in the circuit. The key components of inductors and transformers are magnetic elements, which are typically formed of a magnetic core and a winding coil wound around the core.

In order to fix the winding coil, the conventional magnetic element is generally formed by embedding a bakelite skeleton inside a magnetic core and then winding a copper wire or the like on the skeleton, but the magnetic element including the skeleton has the following defects:

(1) gaps among the winding coil, the framework and the magnetic core are small or even no gap exists, so that ventilation and heat dissipation are not facilitated;

(2) the whole volume of the magnetic element is increased, and the occupied three-dimensional space is enlarged, which is not beneficial to the miniaturization development of products;

(3) the weight of the magnetic element is increased by the framework, so that the manufacturing cost and the processing difficulty are increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a magnetic component and inductor and transformer aims at solving current magnetic element radiating effect poor, bulky and be unfavorable for aspects such as product miniaturization problem.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

a magnetic assembly comprising a magnetic core component, an insulating thermally conductive support and a winding coil;

the magnetic core part is provided with a seat body structure and a center pillar structure, and the center pillar structure is convexly arranged on the seat body structure;

the partial end surface of the insulating heat conduction support is connected with the seat body structure, the insulating heat conduction support is sleeved on the center pillar structure, and a gap is formed between the insulating heat conduction support and the center pillar structure to form a heat dissipation channel;

and the winding coil is wound on the insulating heat-conducting bracket.

In a possible implementation manner, the insulating heat-conducting support is a cylinder, a plurality of through holes for heat dissipation are formed in the cylinder, and the through holes extend along a direction from the outer wall of the cylinder to the inner wall of the cylinder;

or the insulating heat-conducting support is a net cylinder;

or a radiating fin structure is formed on the surface of the insulating heat conduction bracket facing the center pillar structure.

In a possible embodiment, the seat structure is provided with at least two gaps for ventilation, and the two gaps are respectively communicated with two ends of the heat dissipation channel.

In a possible embodiment, the magnetic core part includes a first core and a second core, the first core includes a first seat body, a first center pillar and two first side pillars, and the first center pillar and the two first side pillars are both protruded from a same side of the first seat body and have a space therebetween;

the second core body comprises a second seat body, a second middle column and two second side columns, wherein the second middle column and the two first side columns are arranged on the same side of the second seat body in a protruding mode and have intervals; the first center pillar is opposite to the second center pillar;

the insulating heat conduction bracket is provided with a first end face and a second end face opposite to the first end face, part of the first end face is connected with the first seat body, and part of the second end face is connected with the second seat body.

In one possible embodiment, the magnetic core member further includes a magnetic pillar provided between the first center pillar and the second center pillar in a direction of a center axis of the first center pillar, and connected to one of the first center pillar and the second center pillar with a gap therebetween;

alternatively, the magnetic pillar is connected between the first center pillar and the second center pillar.

In one possible embodiment, one end of the magnetic pillar is a non-ferromagnetic medium, and the other end of the magnetic pillar is an air gap magnetic material, the first central pillar is connected to the non-ferromagnetic medium, and the second central pillar is spaced from the air gap magnetic material.

In a possible implementation manner, the magnetic assembly further includes a bottom plate for carrying the magnetic core component and at least one supporting pillar for supporting the bottom plate, the bottom plate is provided with at least two through holes, the two through holes are used for penetrating two terminals of the winding coil, and the supporting pillar is fixed on the bottom plate and supports the bottom plate together with the two terminals.

In a possible embodiment, the magnetic assembly further includes an insulating layer disposed between the base structure and the winding coil for isolating the base from the winding coil.

Accordingly, an inductor comprising a magnetic component as claimed in any preceding claim.

And the transformer comprises the magnetic assembly, the winding coil comprises two first coils, one of the two first coils is wound on the outer wall of the insulating heat-conducting support, the second coil is wound on the first coil, and the other first coil is wound on the second coil.

The utility model has the advantages that:

the embodiment of the utility model provides a magnetic component and inductor and transformer, establish on the center pillar structure through the heat conduction support cover that will insulate among the magnetic component, and there is the clearance in order to form heat dissipation channel in heat conduction support and center pillar structure of insulating, thereby the effectual ventilation cooling effect of magnetic component who improves, restrain magnetic component's thermal saturation risk effectively, and owing to use insulating heat conduction support to replace skeleton texture, the volume that can reduce magnetic component effectively, reduce the cubical space that magnetic component occupied, thereby be favorable to the magnetic component miniaturization. The inductor or the transformer comprising the magnetic component not only has good heat dissipation effect, but also can enable the volume of the inductor or the transformer to become smaller, and greatly meets the requirement of circuit miniaturization development.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a magnetic assembly according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of another view angle of the magnetic assembly according to the embodiment of the present invention;

fig. 3 is an exploded schematic view of a magnetic assembly according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a magnetic core component according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a magnetic core component according to another embodiment of the present invention;

fig. 6 is a schematic perspective view of a magnetic core member according to another embodiment of the present invention;

fig. 7 is a schematic perspective view of an inductor according to an embodiment of the present invention;

fig. 8 is a schematic diagram of the transformer after the second core is removed according to the embodiment of the present invention.

Reference numerals:

10. a magnetic component;

100. a heat dissipation channel;

101. a first magnetic core window;

102. a second core window;

11. a magnetic core member; 111. a seat structure; 111A, a first end; 111B, a second end; 1110. a notch; 1111. a first seat body; 1112. a second seat body; 112. a center pillar structure; 1121. a first center pillar; 1122. a second center pillar; 113. a side pillar structure; 1131. a first side column; 1132. a second side column;

114. a magnetic column; 1141. an air gap magnetic material; 1142. a non-ferromagnetic medium;

12. an insulating heat-conducting support; 121. a first end face; 122. a second end face;

13. a winding coil; 131. a first coil; 132. a second coil;

14. a base plate; 141. a through hole;

15. a support pillar;

16. an insulating layer;

20. an inductor;

30. a transformer; 31. an insulating film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the present invention provides a schematic structural diagram of the magnetic component 10, the inductor 20 and the transformer 30 as shown in fig. 1 to 8.

Referring to fig. 1, 2 and 3, a magnetic assembly 10 includes a magnetic core 11, an insulating and thermally conductive support 12 and a winding coil 13. Wherein, the magnetic core part 11 has a seat body structure 111 and a center pillar structure 112, and the center pillar structure 112 is convexly arranged on the seat body structure 111; the insulating and heat conducting bracket 12 has a first end surface 121 and a second end surface 122, the first end surface 121 and the second end surface 122 are disposed oppositely, a part of the first end surface 121 and/or the second end surface 122 is connected to the seat structure 111, and the insulating and heat conducting bracket 12 is sleeved on the periphery of the center pillar structure 112. Specifically, the center pillar structure 112 is inserted into the insulating and heat-conducting support 12, and a gap exists between the center pillar structure 112 and the insulating and heat-conducting support 12 to form the heat dissipation channel 100; the winding coil 13 is wound on the insulating heat-conducting bracket 12. The center pillar structure 112 and the winding coil 13 are separated by the insulating and heat-conducting support 12, and the heat dissipation channel 100 is formed between the insulating and heat-conducting support 12 and the center pillar structure 112, so that heat generated by the winding coil 13 and the magnetic core part 11 can be transferred to the insulating and heat-conducting support 12, and heat dissipation is realized through the heat dissipation channel 100.

Referring to fig. 1 and 3, in some embodiments, the insulating and heat conducting support 12 is a cylinder or a mesh cylinder. When the insulating and heat-conducting support 12 is a cylinder, the cylinder may be a circular cylinder, a square cylinder, a polygonal cylinder, or the like. The cylinder is provided with a plurality of through holes (not labeled in the figure) for heat dissipation, and the through holes extend along the direction from the outer wall of the cylinder to the inner wall of the cylinder to communicate the outer wall side of the cylinder with the inner wall side of the cylinder, i.e. to communicate the winding coil 13 and the heat dissipation channel 100, and the through holes are uniformly or non-uniformly distributed on the insulating heat conduction support 12, so that the heat generated by the magnetic core part 11 can be transmitted to the heat dissipation channel 100 from the insulating heat conduction support 12 in a heat conduction manner, and can also be transmitted to the heat dissipation channel 100 from the through holes in the insulating heat conduction support 12 in a heat radiation manner, and then the heat is diffused to the outside of the magnetic component 10 by the heat dissipation channel 100.

In some embodiments, a heat dissipation fin structure (not shown) is formed on a surface of the insulating and heat conducting bracket facing the center pillar structure 112, and the heat dissipation fin structure is also beneficial for increasing the heat dissipation area, thereby increasing the heat dissipation effect. Of course, the structure of the insulating and heat-conducting bracket 12 is not limited to the above structures, and other structures which are beneficial to heat conduction and heat dissipation may be used.

Referring to fig. 1 and 3, in some embodiments, when the thermally and electrically insulating bracket 12 is a circular cylinder, the thermally and electrically insulating bracket 12 has an inner diameter and an outer diameter, the inner diameter is larger than the diameter of the center pillar structure 112, and a gap is formed between the inner wall of the thermally and electrically insulating bracket 12 and the outer wall of the center pillar structure 112 to form the heat dissipation channel 100. In some embodiments, the insulating and thermally conductive support 12 is a grid-shaped insulating and thermally conductive support 12. In some embodiments, the insulating and thermally conductive holder 12 is a Nomex (NOMEXT) cylinder, i.e., the insulating and thermally conductive holder 12 is cylindrical in shape and the material of the cylinder is nomex. Of course, the material of the insulating and heat conducting support 12 of the present invention is not limited to the nomex paper, and may be other materials with good electrical insulation and thermal conductivity.

Referring to fig. 4, 1 and 2, the magnetic core segment 11 includes a first core (not shown) and a second core (not shown), and the first core and the second core are disposed opposite to each other. Specifically, the first core includes a first seat 1111, a first center pillar 1121, and two first side pillars 1131; the first central pillar 1121 and the two first side pillars 1131 are protruded from the same side of the first seat 1111, the two first side pillars 1131 are disposed on two sides of the first central pillar 1121, and the two first side pillars 1131 and the first central pillar 1121 have a gap therebetween. The second core includes a second seat 1112, a second center pillar 1122, and two second side pillars 1132; the second central pillar 1122 and the two first side pillars 1131 are both protruded from the same side of the second seat 1112, the two second side pillars 1132 are disposed on both sides of the second central pillar 1122, and the two second side pillars 1132 and the second central pillar 1122 have an interval. In order to realize the opposite arrangement of the first core and the second core, the first center pillar 1121 and the second center pillar 1122 are opposite, that is, the end of the first center pillar 1121 away from the first seat 1111 and the end of the second center pillar 1122 away from the second seat 1112 are opposite, meanwhile, the ends of the two first side pillars 1131 away from the first seat 1111 are opposite to the ends of the two second side pillars 1132 away from the second seat 1112, respectively, the first side pillar 1131, the first seat 1111, the first center pillar 1121, the second center pillar 1122, the second seat 1112 and the second side pillar 1132 enclose and form the first core window 101, and the other first side pillar 1131, the first seat 1111, the first center pillar 1121, the second center pillar 1122, the second seat 1112 and the other second side pillar 1132 enclose and form the second core window 102, the first window 101 and the second core window 102 are symmetrical with respect to the center axis of the first center pillar 1121, for receiving the insulating and thermally conductive holder 12 and the winding coil 13. In this embodiment, the seat structure 111 is composed of a first seat 1111 and a second seat 1112; the center pillar structure 112 is formed by facing a first center pillar 1121 and a second center pillar 1122. The first end 121 of the insulating and heat conducting bracket 12 is connected to the first base 1111, and the second end 122 is connected to the second base 1112. In some embodiments, the partial first end surface 121 is connected to the first seat 1111 by a fixing adhesive, and the partial second end surface 122 is connected to the second seat 1112 by a fixing adhesive. In some embodiments, the surfaces of the two first side pillars 1131 facing the first center pillar 1121 are both arc surfaces recessed toward the first center pillar 1121, and the central axes of the arc surfaces coincide with the central axis of the first center pillar 1121; the surfaces of the two second side pillars 1132 facing the second center pillar 1122 are both arc surfaces concave toward the second center pillar 1122, and the central axes of the arc surfaces coincide with the central axis of the second center pillar 1122.

Referring to fig. 1, 4, 5, and 6, in some embodiments, the seat structure 111 formed by the first seat 1111 and the second seat 1112 has a first end 111A and a second end 111B opposite to the first end 111A, a plane of the first end 111A and the second end 111B of the second end 111B are both parallel to a connection line of the two first side pillars 1131 (or parallel to a connection line of the two second side pillars 1132), the first end 111A of the first seat 1111 is provided with a notch 1110 having an opening facing the first end 111A and/or the second end 111B of the first seat 1111 is provided with a notch 1110 having an opening facing the second end 111B; a notch 1110 with an opening facing the first end 111A is formed on the first end 111A of the second seat 1112 and/or a notch 1110 with an opening facing the second end 111B is formed on the second end 111B of the second seat 1112, the notch 1110 on the first seat 1111 is communicated with the heat dissipation channel 100, the notch 1110 on the second seat 1112 is also communicated with the heat dissipation channel 100, because the heat dissipation channel 100 is located between the first seat 1111 and the second seat 1112, when one of the notch 1110 on the first seat 1111 and the notch 1110 on the second seat 1112 is used for air intake, the other one is used for air outlet, thereby forming a good ventilation effect. In some embodiments, the first end 111A and the second end 111B of the first fastening structure 1111 are both provided with the notch 1110, and the first end 111A and the second end 111B of the second fastening structure are both provided with the notch 1110. In some embodiments, the notch 1110 is disposed at a portion of the first end 111A or the second end 111B that is proximate to the newel structure 112. The notch 1110 is disposed such that when the magnetic component 10 is warmed, heat can be dissipated to the outside of the magnetic component 10 rapidly through the heat dissipation channel 100 and the notch 1110, so as to effectively avoid the magnetic saturation risk caused by the over-temperature of the magnetic core 11.

Referring to fig. 1, 4, 5 and 6, in some embodiments, a side wall of the first seat 1111 facing the first end 111A extends from the first side pillar 1131 to the first center pillar 1121 in a direction of gradually decreasing distance from the second end 111B and is connected to the first center pillar 1121, so that a notch 1110 opened to the first end 111A is formed on the first seat 1111; the side wall of the first seat 1111 facing the second end 111B extends from the first side pillar 1131 toward the first center pillar 1121 in a direction of gradually decreasing the distance from the first end 111A and is connected to the first center pillar 1121, so that a notch 1110 is formed in the first seat 1111 and opens toward the second end 111B. Similarly, the sidewall of the second seat 1112 facing the first end 111A extends from the second side pillar 1132 toward the second center pillar 1122 with a tendency of gradually decreasing distance from the second end 111B and connects to the second center pillar 1122, thereby forming a notch 1110 opening toward the first end 111A in the second seat 1112; the sidewall of the second seat 1112 facing the second end 111B extends from the second side pillar 1132 toward the second center pillar 1122 in a direction of decreasing distance from the first end 111A and is connected to the second center pillar 1122, thereby forming a notch 1110 opening toward the second end 111B in the second seat 1112.

Through respectively opening at least one breach 1110 on first pedestal 1111 and second pedestal 1112, can make heat dissipation channel 100 effectively with the outside intercommunication of magnetic component 10, be convenient for dispel the heat, air can get into with one of breach 1110 on the first pedestal 1111 and the breach 1110 on the second pedestal 1112, and the breach 1110 on the first other is discharged to effectively take away the heat of magnetic core part 11 and winding coil 13, improve the ventilation cooling effect, restrain the temperature rise of magnetic core part 11 and reduce the thermal saturation risk of magnetic core part 11.

In this embodiment, the magnetic core 11 is of a PQ-type structure, but of course, the magnetic core 11 of the present invention can also be of EE-type, EI-type, ER-type, POT-type, and EF-type structures, and when the magnetic core 11 is of EE-type, EI-type, ER-type, POT-type, or EF-type structures, it is only necessary to properly adjust the magnetic core 11 of the PQ-type structure, and these structures also belong to the conventional structure or the deformation structure in the field of magnetic elements, and the details are not repeated here.

Referring to fig. 5 and 6, in some embodiments, an end of the first center pillar 1121 away from the first seat 1111 and an end of the second center pillar 1122 away from the second seat 1112 are opposite to each other and contact each other or have a gap therebetween. When there is a gap between the first center leg 1121 and the second center leg 1122, the magnetic core member 11 further includes a magnetic pillar 114, the magnetic pillar 114 is disposed between the first center leg 1121 and the second center leg 1122 along the central axis direction of the first center leg 1121, and one end of the magnetic pillar 114 is connected to the end of the first center leg 1121 away from the first seat 1111 and the other end is connected to the end of the second center leg 1122 away from the second seat 1112. In other embodiments, the magnetic pillar 114 is connected to one of the first and second center pillars 1121, 1122 with a gap therebetween.

Referring to fig. 5 and 6, in some embodiments, the magnetic pillar 114 includes an air-gap magnetic material 1141 and a non-ferromagnetic medium 1142, and the air-gap magnetic material 1141 and the non-ferromagnetic medium 1142 are connected sequentially or alternately. The air gap magnetic material 1141 is the same as the first core and/or the second core, and may be a magnetic powder material, a fe-si-al material, a ferrite material, a mn-zn ferrite material, a ni-zn ferrite material, or the like. In some embodiments, one end of the magnetic pillar 114 is a non-ferromagnetic medium 1142 and the other end is an air-gap magnetic material 1141, one end of the non-ferromagnetic medium 1142 in the magnetic pillar 114 is connected to the first central pillar 1121, and there is a gap between one end of the air-gap magnetic material 1141 and the second central pillar 1122. The multi-section air gaps have the main function that on one hand, the phenomenon that the magnetic elements are burnt out and fail due to overheating of the coil caused by cutting of the coil by magnetic lines of force generated by a single air gap is avoided; on the other hand, the air gap can avoid the magnetic saturation phenomenon under the condition of large alternating current signals or direct current bias, so that the inductance can be better controlled.

Referring to fig. 2, 7 and 8, in some embodiments, winding coil 13 includes first coil 131 or first coil 131 and second coil 132. When the winding coil 13 includes only the first coil 131, the first coil 131 is wound on the surface of the insulating and heat-conducting support 12 facing away from the centering post structure 112, and the magnetic assembly 10 of this type is suitable as a magnetic element of the inductor 20. When the winding coil 13 includes the first coil 131 and the second coil 132, the number of the first coil 131 and the number of the second coil 132 may be determined according to actual needs, such as two first coils 131 and one second coil 132, or one first coil 131 and two second coils 132, and so on. Meanwhile, an insulating film 31 is provided between the plurality of coils, for example, when the winding coil 13 includes two first coils 131 and one second coil 132, one first coil 131 is wound on the insulating and heat conducting support 12, at least one insulating film 31 is coated on the first coil 131, then the second coil 132 is wound on the insulating film 31 to form a first insulating film 31 layer, the second coil 132 is wound on the first insulating film 31 layer, at least one insulating film 31 is coated on the second coil 132 to form a second insulating film 31 layer, and another first coil 131 is wound on the second insulating film 31 layer, thereby obtaining the winding coil 13, and since at least one insulating film 31 is provided between the two first coils 131 and the second coil 132, a good insulating effect is achieved. The winding of the winding coil 13 including the first coil 131 and the two second coils 132 is similar to the winding of the winding coil including the two first coils 131 and the two second coils 132, and the description thereof is omitted. The magnetic assembly 10 including two first coils 131 and one second coil 132 or including one first coil 131 and two second coils 132 is suitable as a magnetic element of the transformer 30.

Referring to fig. 1 and 2, in some embodiments, the magnetic assembly 10 further includes a bottom plate 14, and the bottom plate 14 is connected to the magnetic core segment 11 for carrying the magnetic core segment 11. Specifically, the base plate 14 is connected to a first leg 1131 of the first core and a second leg 1132 of the second core, and the first leg 1131 connected to the base plate 14 and the second leg 1132 connected to the base plate 14 are disposed opposite to each other so as to place the core segment 11 on the base plate 14. In some embodiments, the magnetic core part 11 is fixed to the base plate 14 by glue. At least two through holes 141 are formed in the bottom plate 14, wherein the two through holes 141 are used for passing through two terminals of the winding coil 13.

Referring to fig. 1 and 2, in some embodiments, the magnetic assembly 10 further includes at least one support post 15, and the support post 15 is detachably fixed on the bottom plate 14 to support the bottom plate 14 together with the two terminals. In some embodiments, the number of the through holes 141 is three, two through holes 141 are used for passing through two terminals of the winding coil 13, and the third through hole 141 is used for passing through the local supporting column 15, so that the magnetic assembly 10 has three supporting points which are not collinear through the supporting column 15 and the two terminals, thereby facilitating the mounting of the magnetic assembly 10 on the circuit board and improving the reliability of the mounting of the magnetic assembly 10. Of course, the magnetic assembly 10 may be supported by only a plurality of support posts 15.

Referring to fig. 1, 2 and 3, in some embodiments, the magnetic assembly 10 further includes an insulating layer 16, and the insulating layer 16 is disposed between the base structure 111 and the winding coil 13 for isolating the base structure 111 from the winding coil 13. In some embodiments, the number of the insulating layers 16 is at least two, wherein one layer of the insulating layer 16 is attached to the surface of the first base 1111 facing the winding coil 13, and the other layer of the insulating layer 16 is attached to the surface of the second base 1112 facing the winding coil 13. Of course, the number of the insulating layers 16 attached to the surface of the first base 1111 facing the winding coil 13 is not limited to one, and may be two, three, four, or six, and the like, and similarly, the number of the insulating layers 16 attached to the surface of the second base 1112 facing the winding coil 13 is not limited to one, and may be two, three, four, or six, and the like.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A magnetic assembly comprising a magnetic core member, an insulating thermally conductive support and a winding coil;

the magnetic core part is provided with a seat body structure and a center pillar structure, and the center pillar structure is convexly arranged on the seat body structure;

the partial end surface of the insulating heat conduction support is connected with the seat body structure, the insulating heat conduction support is sleeved on the periphery of the center pillar structure, and a gap is formed between the insulating heat conduction support and the center pillar structure to form a heat dissipation channel;

and the winding coil is wound on the insulating heat-conducting bracket.

2. The magnetic component according to claim 1, wherein the insulating and heat-conducting support is a cylinder, a plurality of through holes for heat dissipation are formed in the cylinder, and the through holes extend along a direction from an outer wall of the cylinder to an inner wall of the cylinder;

or the insulating heat-conducting support is a net cylinder;

or a radiating fin structure is formed on the surface of the insulating heat conduction bracket facing the center pillar structure.

3. The magnetic assembly according to claim 1, wherein the base structure has at least two notches for ventilation, and the two notches are respectively connected to two ends of the heat dissipation channel.

4. The magnetic component of claim 1, wherein the magnetic core member comprises a first core and a second core, the first core comprises a first seat, a first center pillar and two first side pillars, and the first center pillar and the two first side pillars are both protruded from a same side of the first seat and spaced apart from each other;

the second core body comprises a second seat body, a second middle column and two second side columns, wherein the second middle column and the two first side columns are arranged on the same side of the second seat body in a protruding mode and have intervals; the first center pillar is opposite to the second center pillar;

the insulating heat conduction bracket is provided with a first end face and a second end face opposite to the first end face, part of the first end face is connected with the first seat body, and part of the second end face is connected with the second seat body.

5. The magnetic component of claim 4, wherein the magnetic core member further comprises a magnetic pillar disposed between the first center pillar and the second center pillar in a direction of a central axis of the first center pillar, and connected to one of the first center pillar and the second center pillar with a gap therebetween;

alternatively, the magnetic pillar is connected between the first center pillar and the second center pillar.

6. The magnetic component of claim 5, wherein the magnetic pillars are configured with a non-ferromagnetic medium at one end and an air gap magnetic material at the other end, the first central pillar is connected to the non-ferromagnetic medium, and the second central pillar is spaced apart from the air gap magnetic material.

7. The magnetic component according to any one of claims 1 to 3, further comprising a bottom plate for carrying the magnetic core member and at least one supporting pillar for supporting the bottom plate, wherein the bottom plate is provided with at least two through holes, the two through holes are used for penetrating two terminals of the winding coil, and the supporting pillar is fixed on the bottom plate and supports the bottom plate together with the two terminals.

8. The magnetic component of any of claims 1 to 3, further comprising an insulating layer disposed between the housing structure and the winding coil for isolating the housing structure from the winding coil.

9. An inductor, characterized in that the inductor comprises a magnetic component according to any one of claims 1 to 8.

10. A transformer comprising the magnetic assembly of any one of claims 1 to 8, wherein the winding coil comprises two first coils, one of the first coils is wound on the outer wall of the insulating and heat-conducting support, the second coil is wound on the first coil, and the other of the first coils is wound on the second coil.

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