Magnetic integration structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DELTA ELECTRONICS INC(CN)
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-23
Smart Images
Figure CN224400193U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of switching power supply technology, and in particular to a magnetic integrated structure. Background Technology
[0002] In server power supply development, air cooling is a commonly used heat dissipation method. Its advantages include low cost, simple maintenance, wide applicability, and convenient installation. However, air cooling is prone to localized overheating during the cooling process. Furthermore, as server power supplies increase in wattage, the power density of magnetic components also increases, further raising the requirements for air cooling performance.
[0003] Therefore, how to improve the heat dissipation of magnetic components by designing airflow channels is one of the problems that the industry is eager to address by investing research and development resources. Summary of the Invention
[0004] In view of this, one object of this disclosure is to propose a magnetic integrated structure that can solve the above problems.
[0005] To achieve the above objectives, according to one embodiment of this disclosure, a magnetic integrated structure is provided, comprising a magnetic core, a first frame, a transformer winding, and an inductor winding. The magnetic core includes a magnetic cover and a central post and an inductor post disposed on the magnetic cover. The magnetic core also includes an air gap located on the central post. The first frame is disposed on the central post. The central post passes through a first hollow portion of the first frame. Along a second direction, the first frame includes two opposing first openings. The transformer winding is at least partially wound on the first frame. The inductor winding is wound on the inductor post. Along a third direction, the two first openings and the air gap are at the same height. The two first openings and the air gap form a first heat dissipation channel along the second direction. Along the first direction, a gap exists between the transformer winding and the inductor winding. Along the second direction, the gap forms a second heat dissipation channel. Along the second direction, opposite sides of the magnetic cover are the air inlets and outlets of the first and second heat dissipation channels. This disclosure optimizes the heat dissipation channel design of the magnetic integrated structure by opening two first openings at the position of the air gap in the core corresponding to the first skeleton to form a first heat dissipation channel, and reserving a certain gap between the transformer winding and the inductor winding to form a second heat dissipation channel, thereby enabling the magnetic core and winding of the magnetic integrated structure to dissipate heat better and enhancing the overall heat dissipation capacity of the magnetic integrated structure.
[0006] In one or more embodiments of this disclosure, the first frame further includes a plurality of second openings. The plurality of second openings are disposed on two surfaces of the first frame that are disposed opposite to each other along a first direction.
[0007] In one or more embodiments of this disclosure, two first openings are exposed relative to the transformer windings.
[0008] In one or more embodiments of this disclosure, the transformer winding includes a first winding and a second winding, the first winding being wound on a first frame, and the second winding being wound on the first winding or the first frame.
[0009] In one or more embodiments of this disclosure, the first frame further includes at least two first partitions spaced apart along a third direction, and the first winding and the second winding are located between the at least two first partitions.
[0010] In one or more embodiments of this disclosure, two first openings disposed opposite each other along a second direction constitute a first opening group, and in every three adjacent first partitions, the middle first partition is at the same height as a first opening group.
[0011] In one or more embodiments of this disclosure, two first openings disposed opposite each other along a second direction constitute a first opening group, and the first opening group is located between two adjacent first partitions.
[0012] In one or more embodiments of this disclosure, the number of first opening groups is the same as the number of air gaps.
[0013] In one or more embodiments of this disclosure, two side posts are respectively provided on opposite sides of the central post along a first direction. A window is formed between the two side posts on each side. The inductor post is disposed in one of the windows. The lead-out portion of the second winding extends from the other window.
[0014] In one or more embodiments of this disclosure, along the first direction, the distance between the second winding and any side post is greater than or equal to 2 mm.
[0015] In one or more embodiments of this disclosure, the magnetic core includes a first magnetic core and a second magnetic core. The first magnetic core includes a first magnetic cover and a first central post and a first inductor post disposed on the first magnetic cover. The second magnetic core includes a second magnetic cover and a second central post and a second inductor post disposed on the second magnetic cover. The first central post and the second central post constitute a central post. The first inductor post and the second inductor post constitute an inductor post. An air gap is formed between the first central post and the second central post.
[0016] In one or more embodiments of this disclosure, the gap is greater than or equal to 2 mm.
[0017] In one or more embodiments of this disclosure, the magnetically integrated structure further includes a second frame disposed on an inductor post. The inductor post passes through a second hollow portion of the second frame. An inductor winding is wound around the second frame.
[0018] In one or more embodiments of this disclosure, the second frame further includes at least two second partitions. An inductor winding is located between at least two of the second partitions of the second frame.
[0019] In summary, in the magnetic integrated structure disclosed herein, since the resonant inductor, transformer core, and windings are integrated together, the overall volume and weight of the magnetic integrated structure can be reduced. Furthermore, in this magnetic integrated structure, because the first frame includes two first openings, there is a gap between the transformer winding and the inductor winding, and an air gap is provided on the core column, with the two first openings and the air gap having the same height, at least two heat dissipation channels can be formed. This allows airflow to carry away the heat generated by the magnetic integrated structure along the air inlet to the air outlet, and also allows more airflow to flow into the components located behind the magnetic integrated structure. Therefore, the magnetic integrated structure of this disclosure not only reduces the volume and weight of the magnetic components but also increases the effective airflow channels, thereby improving the overall heat dissipation capacity.
[0020] The above description is only used to illustrate the problem to be solved by this disclosure, the technical means to solve the problem, and the effects produced, etc. The specific details of this disclosure will be described in detail in the following embodiments and related drawings. Attached Figure Description
[0021] To make the above and other objects, features, advantages and embodiments of this disclosure more apparent and understandable, the accompanying drawings are described below:
[0022] Figure 1 A schematic diagram illustrating a magnetic integration structure according to one embodiment of the present disclosure is shown.
[0023] Figure 2 An exploded view of a magnetic integrated structure according to one embodiment of the present disclosure is shown.
[0024] Figure 3 A schematic diagram of a first magnetic core and a second magnetic core according to an embodiment of the present disclosure is shown.
[0025] Figure 4A A schematic diagram of a first skeleton according to an embodiment of the present disclosure is shown.
[0026] Figure 4B A schematic diagram of a first skeleton according to another embodiment of the present disclosure is shown.
[0027] Figure 4C A schematic diagram illustrating a first skeleton according to another embodiment of the present disclosure is shown.
[0028] Figure 5 A schematic diagram of a second skeleton according to one embodiment of the present disclosure is shown.
[0029] Figure 6 A schematic diagram illustrating a magnetic integration structure according to one embodiment of the present disclosure is shown.
[0030] Figure 7A side view of a magnetic integration structure according to an embodiment of the present disclosure is shown.
[0031] Figure 8 A top view of a magnetic integration structure according to one embodiment of the present disclosure is shown.
[0032] The reference numerals in the attached figures are explained as follows:
[0033] 100: Magnetic integrated structure
[0034] 110: Magnetic core
[0035] 110a: First magnetic core
[0036] 110b: Second magnetic core
[0037] 112: Magnetic cover
[0038] 112a: First magnetic cover
[0039] 112b: Second magnetic cover
[0040] 113: Central Pillar
[0041] 113a: First central column
[0042] 113b: Second Central Column
[0043] 114: Inductor column
[0044] 114a: First inductor post
[0045] 114b: Second inductor post
[0046] 115: Side Post
[0047] 115a: First side column
[0048] 115b: Second side pillar
[0049] 120: First Skeleton
[0050] 122: First dividing section
[0051] 130: First winding
[0052] 140: Second winding
[0053] 140A: First outgoing line section
[0054] 140B: Second exit section
[0055] 150: Transformer winding
[0056] 160: Side panel
[0057] 170: Second skeleton
[0058] 172: Second Divider
[0059] 180: Inductor winding
[0060] AF: Romantic
[0061] D1: Gap
[0062] D2: Distance
[0063] G: Air gap
[0064] H 160 :perforation
[0065] HP1: First Hollow Section
[0066] HP2: Second Hollow Section
[0067] IL: Air Inlet
[0068] OL: Air vent
[0069] OP1: First opening
[0070] OP2: Second opening
[0071] OP3: Third opening
[0072] OP4: Fourth opening
[0073] WD1, WD2: Windows
[0074] X, Y, Z: Direction Detailed Implementation
[0075] The following describes several embodiments of this disclosure with reference to the accompanying drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this disclosure. That is, these practical details are not essential in some embodiments of this disclosure. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner. The same reference numerals will be used to denote the same or similar components in all the drawings.
[0076] The structure, function, and connection relationship between the components included in the magnetic integrated structure 100 of this embodiment will be described in detail below.
[0077] Please refer to Figure 1 . Figure 1 This is a schematic diagram of a magnetic integration structure 100 according to one embodiment of the present disclosure. Figure 1As shown, in this embodiment, the magnetic integrated structure 100 includes a magnetic core 110, a first frame 120, a transformer winding 150, and a side plate 160. The transformer winding 150 includes a first winding 130 and a second winding 140. A cavity is formed inside the magnetic core 110. An air inlet IL and an air outlet OL are formed on opposite sides of the magnetic core 110 along a second direction (e.g., direction Y), communicating with the cavity. Airflow AF flows through the cavity of the magnetic core 110 from the air inlet IL to the air outlet OL. The first frame 120 is disposed in the cavity of the magnetic core 110. The transformer winding 150 is at least partially wound on the first frame 120. Specifically, the first winding 130 is wound on the first frame 120, and the second winding 140 is wound on either the first frame 120 or the first winding 130. It should be noted that when the second winding 140 is also wound on the first frame 120, the first winding 130 and the second winding 140 can be arranged alternately, such as in the form of first winding-second winding, first winding-second winding-first winding, or second winding-first winding-second winding, etc. When the second winding 140 is wound on the first winding 130, the first winding 130 and the second winding 140 are in a stacked winding form with inner and outer covering. The side plate 160 is disposed on the side of the magnetic core 110 that is different from the air inlet IL and the air outlet OL. Figure 1 As shown, the second winding 140 includes a first lead-out portion 140A and a second lead-out portion 140B. The first lead-out portion 140A and the second lead-out portion 140B of the second winding 140 pass through a side plate 160, which is used to fix and position the first lead-out portion 140A and the second lead-out portion 140B of the second winding 140.
[0078] Please refer to Figure 2 . Figure 2 This is an exploded view of a magnetic integrated structure 100 according to one embodiment of the present disclosure. Figure 2As shown, in this embodiment, the magnetic core 110 includes a first magnetic core 110a and a second magnetic core 110b. Specifically, the magnetic core 110 is formed by splicing the first magnetic core 110a and the second magnetic core 110b. The magnetic core 110 includes a magnetic cover 112, a central post 113, an inductor post 114, and side posts 115. The central post 113, the inductor post 114, and the side posts 115 are disposed on the magnetic cover 112. The central post 113 and the inductor post 114 are spaced apart along a first direction (e.g., direction X). Along the first direction (e.g., direction X), two side posts 115 are disposed on each of the opposite sides of the central post 113. Specifically, two side posts 115 are disposed on the first side of the central post 113, and another two side posts 115 are disposed on the second side of the central post 113. The inductor post 114 is located between the two side posts 115 on the first side of the central post 113. In some embodiments, two side posts 115 and an inductor post 114 located on the first side of the central post 113 are disposed on the edge of the magnetic cover 112, and two side posts 115 located on the second side of the central post 113 are disposed on the other edge of the magnetic cover 112. In some embodiments, four side posts 115 are disposed at the four corners of the magnetic cover 112.
[0079] Please continue to refer to this. Figure 2 .like Figure 2 As shown, in this embodiment, a first frame 120 is disposed on a central column 113. The first frame 120 has a first hollow portion HP1. The first hollow portion HP1 is a cavity defined by the first frame 120. The central column 113 passes through the first hollow portion HP1 of the first frame 120. The first hollow portion HP1 extends along a third direction (e.g., direction Z). The first frame 120 further includes at least two first partitions 122. The at least two first partitions 122 are spaced apart along a third direction (e.g., direction Z). Figure 2 As shown, the first frame 120 includes three first partitions 122, and two first windings 130 and two second windings 140 are separated from each other by the first partitions 122. Specifically, each first winding 130 and each second winding 140 is located between two first partitions 122. The side plate 160 has a plurality of through holes H. 160 The first lead-out portion 140A and the second lead-out portion 140B of the second winding 140 are configured to pass through a plurality of through holes H. 160 This is used to fix and position the first lead-out portion 140A and the second lead-out portion 140B of the second winding 140. For example... Figure 2 As shown, each first partition 122 may also have multiple notches to facilitate the flow of adhesive after subsequent glue application. It should be noted that... Figure 2The two first windings 130 and two second windings 140 shown are separated from each other by a first separator 122. In other embodiments of this invention, a plurality of first windings 130 and a plurality of second windings 140 may also be provided between the two first separators 122. Furthermore, although Figure 2 The image does not show only two first partitions 122, but it is understood that if there are only two first partitions 122, then the first winding 130 and the second winding 140 are both disposed between the two first partitions 122.
[0080] Please continue to refer to this. Figure 2 In this embodiment, the magnetic integrated structure 100 further includes a second frame 170 and an inductor winding 180. The second frame 170 is disposed on the inductor post 114. The second frame 170 has a second hollow portion HP2. The second hollow portion HP2 is a cavity defined by the second frame 170. The inductor post 114 passes through the second hollow portion HP2 of the second frame 170. The second hollow portion HP2 extends in a third direction (e.g., direction Z). The second frame 170 further includes at least two second partitions 172. The at least two second partitions 172 are spaced apart in a third direction (e.g., direction Z). The inductor winding 180 is wound around the second frame 170. The inductor winding 180 is located between the at least two second partitions 172.
[0081] Please refer to Figure 3 . Figure 3 This is a schematic diagram of a first magnetic core 110a and a second magnetic core 110b according to an embodiment of the present disclosure. Figure 3 As shown, in this embodiment, the first magnetic core 110a includes a first magnetic cover 112a and a first central post 113a, a first inductor post 114a, and a first side post 115a disposed on the first magnetic cover 112a. The second magnetic core 110b includes a second magnetic cover 112b and a second central post 113b, a second inductor post 114b, and a second side post 115b disposed on the second magnetic cover 112b. The first central post 113a and the second central post 113b constitute a central post 113. The first inductor post 114a and the second inductor post 114b constitute an inductor post 114. The first side post 115a and the second side post 115b constitute a side post 115. An air gap G is formed between the first central post 113a and the second central post 113b, disposed on the central post 113. In some embodiments, the air gap G is located in the middle section of the central post 113. A window is formed between the two side posts 115 on each side. Specifically, a window WD1 is formed between two side posts 115 on one side, and a window WD2 is formed between two side posts 115 on the other side. An inductor post 114 is disposed in window WD1.
[0082] Please refer to Figures 4A to 4C . Figure 4AThis is a schematic diagram of a first skeleton 120 according to an embodiment of the present disclosure. Figure 4B This is a schematic diagram of a first skeleton 120 according to another embodiment of the present disclosure.
[0083] Figure 4C This is a schematic diagram of a first skeleton 120 according to another embodiment of the present disclosure. Figure 4A As shown, in this embodiment, the first frame 120 further has two first openings OP1 (one of which is located at the rear) and a plurality of second openings OP2. The two first openings OP1 are arranged along a second direction (e.g., direction Y) to form a first opening group. The height of the two first openings OP1 along a third direction (e.g., direction Z) is the same as the height of the air gap G on the central column 113. It should be noted that, considering manufacturing errors and the actual size difference between the first openings OP1 and the air gap G, the same height referred to herein means that they can form a heat dissipation channel in the second direction (e.g., direction Y). The plurality of second openings OP2 are disposed on two surfaces of the first frame 120 that are opposite to each other along a first direction (e.g., direction X). Specifically, the two first openings OP1 are respectively disposed on two opposite surfaces of the first frame 120, and the plurality of second openings OP2 are disposed on another pair of opposite surfaces of the first frame 120. The two first openings OP1 and the plurality of second openings OP2 are all connected to the first hollow portion HP1.
[0084] like Figure 4B As shown, in some embodiments of this case, the first frame 120 includes three or more first partitions 122. Two first openings OP1 arranged along a second direction (e.g., direction Y) form a first opening group. In every three adjacent first partitions 122, the middle first partition 122 is at the same height as a first opening group. Further, as... Figure 4B As shown, the first skeleton 120 includes N first partitions 122 arranged sequentially at intervals along a third direction (e.g., direction Z), where N is an integer greater than or equal to 3. The number of first opening groups is N-2, which are located at the same height as the 2nd to N-1th first partitions 122.
[0085] like Figure 4C As shown, in some other embodiments of this case, the first opening group may also be located between two adjacent first partitions 122.
[0086] Please refer to Figure 5 . Figure 5 This is a schematic diagram of a second skeleton 170 according to one embodiment of the present disclosure. Different from... Figure 2The second frame 170 shown in this embodiment includes three or more second partitions 172 spaced apart along a third direction (e.g., direction Z). And similarly... Figure 4C The first partition 122 and the second frame 170 may also be provided with multiple third openings OP3 and multiple fourth openings OP4. Specifically, the multiple third openings OP3 are respectively provided on two opposite surfaces of the second frame 170 (the multiple third openings OP3 provided on one of the two opposite surfaces are different due to the viewing angle). Figure 5 (Not visible in the middle), and multiple fourth openings OP4 are set on another pair of opposite surfaces of the second frame 170 (multiple third openings OP3 set on one of the other pair of opposite surfaces are visible due to viewing angle). Figure 5 (Not visible in the middle).
[0087] Please refer to Figure 6 . Figure 6 This is a schematic diagram of a magnetic integration structure 100 according to one embodiment of the present disclosure. For simplicity, Figure 6 The second magnetic core 110b is omitted. For example... Figure 5 As shown, in this embodiment, both the first winding 130 and the second winding 140 are located between the plurality of first partitions 122 of the first frame 120. In some embodiments, the magnetic integration structure 100 may include two first windings 130 and two second windings 140, but this disclosure is not intended to limit the number of first windings 130 and second windings 140. The first lead-out portion 140A and the second lead-out portion 140B of the second winding 140 extend from the window WD2. Figure 2 as well as Figure 6 As shown, the side plate 160 is disposed around the window WD2, and the first lead-out portion 140A and the second lead-out portion 140B of the second winding 140 pass through multiple through holes H of the side plate 160. 160 .
[0088] Please refer to Figure 7 . Figure 7 This is a side view of a magnetic integration structure 100 according to an embodiment of the present disclosure. Figure 7As shown, in this embodiment, two first openings OP1 are exposed relative to the first winding 130 and the second winding 140. The two first openings OP1 and the air gap G form a first heat dissipation channel along a second direction (e.g., direction Y), allowing airflow AF to flow into the first frame 120 and carry away heat near the first winding 130, the second winding 140, and the first magnetic core 110a and the second magnetic core 110b. Furthermore, a plurality of second openings OP2 can also carry away heat near the first magnetic core 110a and the second magnetic core 110b to a relatively small extent. In some embodiments, along a third direction (e.g., direction Z), the height of the two first openings OP1 is the same as the height of the air gap G. Specifically, the height of the two first openings OP1 is the same as the height of the air gap G. Figure 7 As shown, in some embodiments, along a second direction (e.g., direction Y), the two first openings OP1 overlap with the air gap G.
[0089] Please refer to Figure 8 . Figure 8 This is a top view of a magnetic integration structure 100 according to one embodiment of the present disclosure. For simplicity, Figure 8 The second magnetic core 110b is also omitted. For example... Figure 8 As shown, in this embodiment, a gap D1 exists between the second winding 140 and the inductor winding 180 along a first direction (e.g., direction X). Specifically, the gap D1 is located between the second winding 140 and the inductor winding 180 and is a distance measured in the first direction. A distance D2 exists between the second winding 140 and any one of the side posts 115 (e.g., either of the two first side posts 115a near the lead-out portions 140A and 140B) along a first direction (e.g., direction X). Specifically, the distance D2 is located between the second winding 140 and any one of the side posts 115 (e.g., either of the two first side posts 115a near the lead-out portions 140A and 140B) and is a distance measured in the first direction. Along a second direction (e.g., direction Y), the gap D1 forms a second heat dissipation channel, and the distance D2 forms a third heat dissipation channel. In this way, the airflow AF can carry away the heat generated by the magnetic integrated structure 100 along the air inlet IL to the air outlet OL through at least the first heat dissipation channel, the second heat dissipation channel, and the third heat dissipation channel, and allow more airflow AF to flow into the components located behind the magnetic integrated structure 100, such as... Figure 7 as well as Figure 8 As shown. Specifically, an output capacitor and an output inductor are further arranged behind the magnetic integrated structure 100, which greatly improves the overall heat dissipation efficiency.
[0090] In some embodiments, the gap D1 is greater than or equal to 2 mm. In some embodiments, the distance D2 is greater than or equal to 2 mm. However, this disclosure is not intended to limit the size of the gap D1 and the distance D2.
[0091] In some embodiments, the first direction, the second direction, and the third direction are mutually perpendicular. In other embodiments, the first direction, the second direction, and the third direction form acute angles with each other.
[0092] From the detailed description of the specific embodiments of this disclosure above, it is evident that in the magnetic integrated structure of this disclosure, since the resonant inductor, the transformer core, and the windings are integrated together, the overall volume and weight of the magnetic integrated structure can be reduced. Simultaneously, in the magnetic integrated structure of this disclosure, since the first frame includes two first openings, there is a gap between the transformer windings and the inductor windings, and an air gap is provided on the core column, and the two first openings and the air gap are at the same height, at least two heat dissipation channels can be formed to allow airflow along the air inlet to the air outlet to carry away the heat generated by the magnetic integrated structure, and to allow more airflow to flow into the components located behind the magnetic integrated structure. Therefore, the magnetic integrated structure of this disclosure not only reduces the volume and weight of the magnetic components but also increases the effective airflow channels, thereby improving the overall heat dissipation capacity.
[0093] Although this disclosure has been described above with reference to embodiments, it is not intended to limit this disclosure. Any person skilled in the art may make various modifications and refinements without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of this disclosure shall be determined by the appended claims.
Claims
1. A magnetic integrated structure, characterized in that, Include: A magnetic core includes a magnetic cover and a central post and an inductor post disposed on the magnetic cover. The central post is provided with an air gap, and the central post and the inductor post are spaced apart along a first direction. A first frame is disposed on the central column, and the central column passes through the first hollow portion of the first frame, wherein along the second direction, the first frame includes two oppositely disposed first openings; The transformer windings, at least partially wound on the first frame; and An inductor winding is wound around the inductor post; Wherein, along the third direction, the two first openings and the air gap are at the same height, and the two first openings and the air gap form a first heat dissipation channel along the second direction. Along the first direction, there is a gap between the transformer winding and the inductor winding. Along the second direction, the gap forms a second heat dissipation channel. Along the second direction, the opposite sides of the magnetic cover are the air inlets and outlets of the first heat dissipation channel and the second heat dissipation channel, respectively. The first direction, the second direction, and the third direction are perpendicular to each other.
2. The magnetic integrated structure according to claim 1, characterized in that, The first frame further includes a plurality of second openings, which are disposed on two surfaces of the first frame that are disposed opposite to each other along the first direction.
3. The magnetic integrated structure according to claim 1, characterized in that, The two first openings are exposed relative to the transformer windings.
4. The magnetic integrated structure according to claim 3, characterized in that, The transformer winding includes a first winding and a second winding. The first winding is wound on the first frame, and the second winding is wound on the first winding or the first frame.
5. The magnetic integrated structure according to claim 4, characterized in that, The first frame further includes at least two first partitions spaced apart along the third direction, and the first winding and the second winding are located between the at least two first partitions.
6. The magnetic integrated structure according to claim 5, characterized in that, The two first openings arranged opposite each other along the second direction constitute a first opening group, and in every three adjacent at least two first partitions, the middle at least two first partitions are at the same height as a first opening group.
7. The magnetic integrated structure according to claim 5, characterized in that, The two first openings arranged opposite each other along the second direction constitute a first opening group, and the first opening group is located between two adjacent first partitions.
8. The magnetic integrated structure according to claim 6 or 7, characterized in that, The number of the first set of openings is the same as the number of the air gaps.
9. The magnetic integrated structure according to claim 4, characterized in that, Along the first direction, two side posts are respectively provided on opposite sides of the central post, and a window is formed between the two side posts on each side. The inductor post is disposed in one of the windows, and the lead-out portion of the second winding extends out from the other window.
10. The magnetic integrated structure according to claim 9, characterized in that, Along the first direction, the distance between the second winding and any of the side posts is greater than or equal to 2 mm.
11. The magnetic integrated structure according to claim 1, characterized in that, The magnetic core includes a first magnetic core and a second magnetic core. The first magnetic core includes a first magnetic cover and a first central post and a first inductor post disposed on the first magnetic cover. The second magnetic core includes a second magnetic cover and a second central post and a second inductor post disposed on the second magnetic cover. The first central post and the second central post constitute the central post, and the first inductor post and the second inductor post constitute the inductor post. The air gap is formed between the first central post and the second central post.
12. The magnetic integrated structure according to claim 1, characterized in that, The gap is greater than or equal to 2 mm.
13. The magnetic integrated structure according to claim 1, characterized in that, The magnetic integrated structure further includes a second frame disposed on the inductor post, and the inductor post passes through the second hollow portion of the second frame, and the inductor winding is wound around the second frame.
14. The magnetic integrated structure according to claim 13, characterized in that, The second frame further includes at least two second partitions, and the inductor winding is located between the at least two second partitions.