Magnetic assembly

Abstract

The utility model provides a magnetic assembly. The magnetic assembly comprises a magnetic core, at least one first winding and at least one second winding, the magnetic core is arranged on the substrate and comprises a first magnetic column and a second magnetic column, the first magnetic column and the second magnetic column are located on the two opposite sides of the magnetic core, the at least one first winding is wound on the first magnetic column of the magnetic core and comprises a first wire inlet end and a first wire outlet end, and the at least one second winding is wound on the second magnetic column of the magnetic core and comprises a second wire outlet end. Wherein the first wire inlet end and the first wire outlet end are inserted on the substrate, the at least one second winding is wound on the second magnetic column of the magnetic core and comprises a second wire inlet end and a second wire outlet end, the second wire inlet end and the second wire outlet end are inserted on the substrate, and the winding directions of the first winding and the second winding are opposite. And the first magnetic column and the second magnetic column form a closed structure.

Description

Technical Field

[0001] The utility model relates to a magnetic component, in particular to a magnetic component with windings wound around different magnetic posts. Background Art

[0002] A magnetic component includes a magnetic core and a plurality of windings. The plurality of windings are wound around the same magnetic post of the magnetic core in the same direction, and each winding includes a corresponding incoming line end and an outgoing line end. Since the currents on the plurality of windings are all different, each winding of the traditional magnetic component cannot contact another winding. Therefore, a relatively large distance is required between each winding and another winding of the traditional magnetic component. However, such a structure will cause the overall magnetic component to have a large volume and a small inductance.

[0003] Therefore, how to develop a magnetic component that overcomes the above disadvantages is an urgent need at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic component. The first winding is wound around the first magnetic post in a clockwise manner, and the second winding is wound around the second magnetic post in a counterclockwise manner, so that the first incoming line end of the first winding is not directly adjacent to the second incoming line end of the adjacent second winding, and the first outgoing line end of the first winding is not directly adjacent to the second outgoing line end of the adjacent second winding. Therefore, no excessive isolation distance is required between the first body of the first winding and the second body of the second winding, so that the overall distance between the first winding and the second winding is shortened. Therefore, the overall magnetic component has a small volume and a large inductance.

[0005] To achieve the above object, a broader embodiment of the utility model provides a magnetic component, including a magnetic core, at least one first winding and at least one second winding. The magnetic core is disposed on a substrate and includes a first magnetic post and a second magnetic post, and the first magnetic post and the second magnetic post are located on opposite sides of the magnetic core. At least one first winding is wound around the first magnetic post of the magnetic core and includes a first incoming line end and a first outgoing line end, wherein the first incoming line end and the first outgoing line end are inserted into the substrate. At least one second winding is wound around the second magnetic post of the magnetic core and includes a second incoming line end and a second outgoing line end, wherein the second incoming line end and the second outgoing line end are inserted into the substrate, wherein the winding directions of the first winding and the second winding are opposite, and the first magnetic post and the second magnetic post form a closed structure.

[0006] According to one embodiment of the utility model, the first magnetic post and the second magnetic post of the magnetic core are respectively arc-shaped.

[0007] According to one embodiment of the utility model, the number of turns of the at least one first winding wound around the first magnetic post is equal to the number of turns of the at least one second winding wound around the second magnetic post.

[0008] According to one embodiment of the present utility model, each of the first windings includes a first body, and the first body includes a first sub-winding and a second sub-winding. The sum of the number of turns of the first sub-winding wound around the first magnetic post and the number of turns of the second sub-winding wound around the first magnetic post is equal to the number of turns of each of the second windings wound around the second magnetic post.

[0009] According to one embodiment of the present utility model, each of the second windings includes a second body, and the second body includes a third sub-winding and a fourth sub-winding. The sum of the number of turns of the third sub-winding wound around the second magnetic post and the number of turns of the fourth sub-winding wound around the second magnetic post is equal to the sum of the number of turns of the first sub-winding wound around the first magnetic post and the number of turns of the second sub-winding wound around the first magnetic post.

[0010] According to one embodiment of the present utility model, the number of turns of the first sub-winding wound around the first magnetic post, the number of turns of the second sub-winding wound around the first magnetic post, the number of turns of the third sub-winding wound around the second magnetic post, and the number of turns of the fourth sub-winding wound around the second magnetic post are all equal.

[0011] The beneficial effect of the present utility model is that the first winding of the magnetic component of the present utility model is wound around the first magnetic post in a clockwise manner, and the second winding is wound around the second magnetic post in a counterclockwise manner, so that the first lead-in end of the first winding and the second lead-in end of the adjacent second winding are not directly adjacent, and the first lead-out end of the first winding and the second lead-out end of the adjacent second winding are not directly adjacent either. Therefore, there is no need for a too large isolation distance between the first body of the first winding and the second body of the second winding, which shortens the overall distance between the first winding and the second winding. As a result, the overall volume of the magnetic component is small and the inductance is large. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the magnetic component according to the first embodiment of the present utility model;

[0013] Figure 2 is Figure 1 an exploded structural diagram of the magnetic component shown;

[0014] Figure 3 is Figure 1 a top view of the magnetic component shown;

[0015] Figure 4 is Figure 1 a bottom view of the magnetic component shown;

[0016] Figure 5 is Figure 1 an equivalent circuit structure diagram of the magnetic component shown;

[0017] Figure 6 Structural schematic diagram of the magnetic component according to the second embodiment of the present utility model;

[0018] Figure 7 is Figure 6 exploded structural schematic diagram of the magnetic component shown;

[0019] Figure 8 is Figure 6 top view of the magnetic component shown;

[0020] Figure 9 is Figure 6 bottom view of the magnetic component shown;

[0021] Figure 10 top view of the magnetic component according to the third embodiment of the present utility model; and

[0022] Figure 11 top view of the magnetic component according to the fourth embodiment of the present utility model.

[0023] Reference numerals are as follows:

[0024] 1, 1a, 1b, 1c: magnetic component

[0025] 2: substrate

[0026] 3: magnetic core

[0027] 31: first magnetic post

[0028] 32: second magnetic post

[0029] 33: third magnetic post

[0030] 34: fourth magnetic post

[0031] 4: first winding

[0032] 41: first body

[0033] 42: first lead-in end

[0034] 43: first lead-out end

[0035] 44: first sub-winding

[0036] 45: second sub-winding

[0037] 5: second winding

[0038] 51: second body

[0039] 52: second lead-in end

[0040] 53: second lead-out end

[0041] 54: third sub-winding

[0042] 55: Fourth sub-winding

[0043] 6: Insulating component

[0044] 61: First insulator component

[0045] 62: Second insulator component

[0046] 63: Third insulator component

[0047] 71: First inductor

[0048] 71a: First end

[0049] 71b: Second end

[0050] 72: Second inductor

[0051] 72a: First end

[0052] 72b: Second end

[0053] 73: Third inductor

[0054] 73a: First end

[0055] 73b: Second end Detailed implementation manners

[0056] Some typical embodiments reflecting the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various changes in different ways, all of which do not depart from the scope of the present utility model, and the descriptions and drawings therein are essentially for illustrative purposes and not for limiting the present utility model.

[0057] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 wherein Figure 1 is a schematic structural diagram of the magnetic component according to the first embodiment of the present utility model, Figure 2 is Figure 1 the exploded structural diagram of the magnetic component shown in Figure 3 is Figure 1 the top view of the magnetic component shown in Figure 4 is Figure 1 the bottom view of the magnetic component shown in. As shown in the figure, the magnetic component 1 of this embodiment is disposed on a main circuit board (not shown), and includes a substrate 2, a magnetic core 3, a first winding 4, and two second windings 5.

[0058] The magnetic core 3 is disposed on the substrate 2 and includes a first magnetic column 31, a second magnetic column 32, a third magnetic column 33, and a fourth magnetic column 34. The first magnetic column 31 and the second magnetic column 32 are located on opposite sides of the magnetic core 3. The third magnetic column 33 and the fourth magnetic column 34 are located on opposite sides of the magnetic core 3 and are respectively connected between the first magnetic column 31 and the second magnetic column 32. In this embodiment, the two ends of the first magnetic column 31 of the magnetic core 3 are respectively connected to the first ends of the third magnetic column 33 and the fourth magnetic column 34, and the two ends of the second magnetic column 32 of the magnetic core 3 are respectively connected to the second ends of the third magnetic column 33 and the fourth magnetic column 34, so that the magnetic core 3 forms a closed structure, where the closed structure is composed of the first magnetic column 31, the second magnetic column 32, the third magnetic column 33, and the fourth magnetic column 34 of the magnetic core 3 or is an integrally formed structure. In this embodiment, the length of the first magnetic column 31 of the magnetic core 3 and the length of the second magnetic column 32 are greater than the length of the third magnetic column 33 and the length of the fourth magnetic column 34.

[0059] In this embodiment, the first winding 4 is located between two second windings 5. As Figure 1 , Figure 3 and Figure 4 shown, the first winding 4 is wound around the first magnetic column 31 of the magnetic core 3 in a first direction and includes a first body 41, a first lead-in end 42, and a first lead-out end 43. The first body 41 is wound around the first magnetic column 31 of the magnetic core 3. The first lead-in end 42 is formed by the first end of the first winding 4 and is inserted into the substrate 2. The first lead-out end 43 is formed by the second end of the first winding 4 relative to the first end and is inserted into the substrate 2. The first winding 4 receives electrical energy provided by the main circuit board via the first lead-in end 42 and provides electrical energy to the main circuit board via the first lead-out end 43. The first direction is taken as an example in the clockwise direction here, but it is not limited thereto. In this embodiment, as Figure 4 shown, the first lead-in end 42 and the first lead-out end 43 of the first winding 4 are respectively located on opposite sides of the position where the first magnetic column 31 is mapped onto the substrate 2, where the first lead-out end 43 of the first winding 4 is located between the position where the first magnetic column 31 is mapped onto the substrate 2 and the position where the second magnetic column 32 is mapped onto the substrate 2.

[0060] Each second winding 5 is wound around the second magnetic column 32 of the magnetic core 3 in a second direction and includes a second body 51, a second lead-in end 52, and a second lead-out end 53. The second body 51 is wound around the second magnetic column 32 of the magnetic core 3. The second lead-in end 52 is formed by the first end of the second winding 5 and is inserted into the substrate 2. The second lead-out end 53 is formed by the second end of the second winding 5 relative to the first end and is inserted into the substrate. The second winding 5 receives electrical energy provided by the main circuit board via the second lead-in end 52 and provides electrical energy to the main circuit board via the second lead-out end 53. The second direction is opposite to the winding direction of the first direction. Here, it is taken as an example in the counterclockwise direction, but it is not limited thereto. In this embodiment, asFigure 4 As shown, the second lead-in end 52 and the second lead-out end 53 of each second winding 5 are respectively located on opposite sides of the position where the second magnetic post 32 is mapped onto the substrate 2, and the second lead-in end 52 of the second winding 5 is located between the position where the first magnetic post 31 is mapped onto the substrate 2 and the position where the second magnetic post 32 is mapped onto the substrate 2. And in this embodiment, the number of turns of the first body 41 of the first winding 4 wound around the first magnetic post 31 is equal to the number of turns of the second body 51 of each second winding 5 wound around the second magnetic post 32, for example, five turns.

[0061] Please continue to refer to Figure 3 and Figure 4 , in this embodiment, since the first winding 4 is wound around the first magnetic post 31 in a clockwise manner, and the second winding 5 is wound around the second magnetic post 32 in a counterclockwise manner, the first lead-in end 42 of the first winding 4 and the second lead-in end 52 of the adjacent second winding 5 are respectively located on opposite sides of the first magnetic post 31, and the first lead-out end 43 of the first winding 4 and the second lead-out end 53 of the adjacent second winding 5 are respectively located on opposite sides of the second magnetic post 32.

[0062] As can be seen from the above, the first winding 4 of the magnetic component 1 of the present utility model is wound around the first magnetic post 31 in a clockwise manner, and the second winding 5 is wound around the second magnetic post 32 in a counterclockwise manner, so that the first lead-in end 42 of the first winding 4 and the second lead-in end 52 of the adjacent second winding 5 are not directly adjacent, and the first lead-out end 43 of the first winding 4 and the second lead-out end 53 of the adjacent second winding 5 are not directly adjacent either. Therefore, there is no need for a large isolation distance between the first body 41 of the first winding 4 and the second body 51 of the second winding 5, so that the overall distance between the first winding 4 and the second winding 5 is shortened. Therefore, the overall volume of the magnetic component 1 is small and the inductance is large.

[0063] Please continue to refer to Figures 1 to 4 , in this embodiment, the magnetic component 1 further includes an insulating member 6 for isolating the first winding 4 and the two second windings 5. The insulating member 6 includes a first insulator member 61, two second insulator members 62 and two third insulator members 63. The first insulator member 61 is located between the first body 41 of the first winding 4 and the second magnetic post 32. The two second insulator members 62 are respectively disposed on opposite sides of the first insulator member 61, and each second insulator member 62 is located between the first body 41 of the first winding 4 and the second body 51 of the corresponding second winding 5. The two third insulator members 63 are respectively disposed on the side of the corresponding second insulator member 62 away from the first insulator member 61, and each third insulator member 63 is located between the second body 51 of the second winding 5 and the first magnetic post 31.

[0064] Please refer to Figure 5 and cooperate withFigures 1 to 4 , wherein Figure 5 is Figure 1 the equivalent circuit structure diagram of the magnetic component shown. As Figure 5 shown, in terms of the circuit structure, the magnetic component 1 forms three inductors, namely the first inductor 71, the second inductor 72, and the third inductor 73. The first inductor 71 is formed by winding the first winding 4 around the first magnetic post 31, wherein the first end 71a of the first inductor 71 is formed by the first incoming line end 42 of the first winding 4, and the second end 71b of the first inductor 71 is formed by the first outgoing line end 43 of the first winding 4. The second inductor 72 is formed by winding one of the second windings 5 around the second magnetic post 32, wherein the first end 72a of the second inductor 72 is formed by the second outgoing line end 53 of the corresponding second winding 5, and the second end 72b of the second inductor 72 is formed by the second incoming line end 52 of the corresponding second winding 5. The third inductor 73 is formed by winding the other second winding 5 around the second magnetic post 32, wherein the first end 73a of the third inductor 73 is formed by the second outgoing line end 53 of the corresponding second winding 5, and the second end 73b of the third inductor 73 is formed by the second incoming line end 52 of the corresponding second winding 5. In this embodiment, the second end 72b of the second inductor 72, the first end 71a of the first inductor 71, and the second end 73b of the third inductor 73 are the same-named ends.

[0065] Please refer to Figure 6 , Figure 7 , Figure 8 and Figure 9 , wherein Figure 6 is the structural schematic diagram of the magnetic component of the second embodiment of the present invention, Figure 7 is Figure 6 the exploded structural schematic diagram of the magnetic component shown, Figure 8 is Figure 6 the top view of the magnetic component shown, Figure 9 is Figure 6 the bottom view of the magnetic component shown. As shown in the figure, compared with Figures 1 to 4 the magnetic component 1 shown, the number of the first windings 4 of the magnetic component 1a in this embodiment is one, and the number of the second windings 5 is two. One of the two second windings 5 is located between the other second winding 5 and the first winding 4, and the structures of the first winding 4 and the second winding 5 in this embodiment are similar to Figures 1 to 4The structures of the first winding 4 and the second winding 5 will not be elaborated here. In this embodiment, the insulating component 6 of the magnetic component 1a only includes a first insulator component 61, a single second insulator component 62, and a single third insulator component 63 to isolate the first winding 4 and the adjacent second winding 5. The setting method is similar to that of the insulating component 6 of the magnetic component 1 in the first embodiment, so it will not be elaborated here. In this embodiment, the magnetic core 3 only includes a first magnetic column 31 and a second magnetic column 32. The first magnetic column 31 and the second magnetic column 32 are respectively arc-shaped, and the two ends of the first magnetic column 31 are respectively connected to the two ends of the second magnetic column 32 so that the magnetic core 3 forms a closed structure. The first magnetic column 31 and the second magnetic column 32 of the magnetic core 3 are integrally formed structures.

[0066] Please refer to Figure 10 , which is a top view of the magnetic component of the third embodiment of the present utility model. As shown in the figure, compared with the Figure 3 magnetic component 1, the first body 41 of the first winding 4 of the magnetic component 1b in this embodiment includes a first sub-winding 44 and a second sub-winding 45. The first sub-winding 44 and the second sub-winding 45 are wound around the first magnetic column 31 at intervals, and the first sub-winding 44 and the second sub-winding 45 are connected to each other in series or in parallel through the wiring in the substrate 2. In this embodiment, the sum of the number of turns of the first sub-winding 44 wound around the first magnetic column 31 and the number of turns of the second sub-winding 45 wound around the first magnetic column 31 is equal to the number of turns of each second winding 5 wound around the second magnetic column 32. For example, the first sub-winding 44 and the second sub-winding 45 are respectively two turns, or the first sub-winding 44 is one turn and the second sub-winding 45 is three turns. And in this embodiment, the number of turns of the second winding 5 is four turns.

[0067] Please refer to Figure 11 , which is a top view of the magnetic component of the fourth embodiment of the present utility model. As shown in the figure, compared with the Figure 10 magnetic component 1b shown, the second body 51 of each second winding 5 of the magnetic component 1c in this embodiment includes a third sub-winding 54 and a fourth sub-winding 55. The third sub-winding 54 and the fourth sub-winding 55 are wound around the second magnetic column 32 at intervals, and the third sub-winding 54 and the fourth sub-winding 55 are connected to each other in series or in parallel through the wiring in the substrate 2. In this embodiment, the sum of the number of turns of the first sub-winding 44 wound around the first magnetic column 31 and the number of turns of the second sub-winding 45 wound around the first magnetic column 31 is equal to the sum of the number of turns of the third sub-winding 54 wound around the second magnetic column 32 and the number of turns of the fourth sub-winding 55 wound around the second magnetic column 32. For example, the first sub-winding 44 and the second sub-winding 45 are respectively two turns, or the first sub-winding 44 is one turn and the second sub-winding 45 is three turns.

[0068] In summary, the first winding of the magnetic component of the present utility model is wound around the first magnetic post in a clockwise manner, and the second winding is wound around the second magnetic post in a counterclockwise manner, so that the first lead-in end of the first winding is not directly adjacent to the second lead-in end of the adjacent second winding, and the first lead-out end of the first winding is not directly adjacent to the second lead-out end of the adjacent second winding. Therefore, there is no need for a large isolation distance between the first body of the first winding and the second body of the second winding, which shortens the overall distance between the first winding and the second winding. As a result, the overall volume of the magnetic component is small and the inductance is large.

Claims

1. A magnetic component, characterized in that: Include: A magnetic core is disposed on a substrate and comprises a first magnetic column and a second magnetic column, wherein the first magnetic column and the second magnetic column are located at two opposite sides of the magnetic core; At least one first winding is wound on the first magnetic column of the magnetic core and comprises a first input terminal and a first output terminal, wherein the first input terminal and the first output terminal are inserted on the substrate; and At least one second winding is wound on the second magnetic column of the magnetic core and includes a second input terminal and a second output terminal, wherein the second input terminal and the second output terminal are inserted on the substrate, wherein the winding directions of the first winding and the second winding are opposite, and the first magnetic column and the second magnetic column form a closed structure.

2. The magnetic assembly according to claim 1, characterized in that: The first magnetic column and the second magnetic column of the magnetic core are respectively in arc shape.

3. The magnetic assembly according to claim 1, characterized in that: The number of turns of the at least one first winding wound around the first magnetic column is equal to the number of turns of the at least one second winding wound around the second magnetic column.

4. The magnetic assembly according to claim 1, wherein: Each of the first windings includes a first body, which includes a first sub-winding and a second sub-winding, wherein the sum of the number of turns of the first sub-winding wound on the first magnetic column and the number of turns of the second sub-winding wound on the first magnetic column is equal to the number of turns of each of the second windings wound on the second magnetic column.

5. The magnetic assembly according to claim 4, characterized in that: Each of the second windings includes a second body, and the second body includes a third sub-winding and a fourth sub-winding, wherein the sum of the number of turns of the third sub-winding wound on the second magnetic column and the number of turns of the fourth sub-winding wound on the second magnetic column is equal to the sum of the number of turns of the first sub-winding wound on the first magnetic column and the number of turns of the second sub-winding wound on the first magnetic column.

6. The magnetic assembly according to claim 5, characterized in that: The number of turns of the first sub-winding wound on the first magnetic column, the number of turns of the second sub-winding wound on the first magnetic column, the number of turns of the third sub-winding wound on the second magnetic column and the number of turns of the fourth sub-winding wound on the second magnetic column are all equal.

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