Magnetic assembly

Abstract

The present invention provides a magnetic assembly. The magnetic assembly comprises a substrate, 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 cylinder and a second magnetic cylinder; the first magnetic cylinder and the second magnetic cylinder are located on two opposite sides of the magnetic core; the at least one first winding is wound on the first magnetic cylinder of the magnetic core in a clockwise direction, and comprises a first wire inlet end and a first wire outlet end, wherein the first wire inlet end and the first wire outlet end are inserted into the substrate; and the at least one second winding is wound on the second magnetic cylinder of the magnetic core in an anticlockwise direction, and comprises a second wire inlet end and a second wire outlet end, wherein the second wire inlet end and the second wire outlet end are inserted into the substrate.

Description

Magnetic assembly TECHNICAL FIELD

[0001] The present invention relates to a magnetic assembly, and more particularly, to a magnetic assembly with windings wound on different magnetic columns. BACKGROUND

[0002] The magnetic assembly includes a magnetic core and a plurality of windings. The plurality of windings are wound on the same magnetic column of the magnetic core in the same direction. Each winding includes a corresponding input terminal and an output terminal. Since the currents on the plurality of windings are not the same, each winding of the conventional magnetic assembly cannot be in contact with another winding. Therefore, a large distance is required between each winding and another winding of the conventional magnetic assembly. However, such a structure results in a large volume and a small inductance of the overall magnetic assembly.

[0003] Therefore, it is an urgent need to develop a magnetic assembly that overcomes the above-mentioned drawbacks.

[0004] SUMMARY

[0005] The present invention aims to provide a magnetic assembly. A first winding is wound on a first magnetic column in a clockwise manner, and a second winding is wound on a second magnetic column in a counterclockwise manner. The first input terminal of the first winding and the second input terminal of the adjacent second winding are not directly adjacent, and the first output terminal of the first winding and the second output terminal of the adjacent second winding are also not directly adjacent. Therefore, a large separation distance is not required between the first body of the first winding and the second body of the second winding. The overall distance between the first winding and the second winding is shortened. Therefore, the volume of the overall magnetic assembly is small, and the inductance is large.

[0006] To achieve the above-mentioned purpose, a broad embodiment of the present invention provides a magnetic assembly. The magnetic assembly includes a substrate, a magnetic core, at least one first winding, and at least one second winding. The magnetic core is disposed on the substrate and includes a first magnetic column and a second magnetic column. The first magnetic column and the second magnetic column are located on opposite sides of the magnetic core. The at least one first winding is wound on the first magnetic column of the magnetic core in a clockwise direction and includes a first input terminal and a first output terminal. The first input terminal and the first output terminal are inserted into the substrate. The at least one second winding is wound on the second magnetic column of the magnetic core in a counterclockwise direction and includes a second input terminal and a second output terminal. The second input terminal and the second output terminal are inserted into the substrate.

[0007] The magnetic assembly of the present application has the beneficial effect that the first winding of the magnetic assembly is wound on the first magnetic column in a clockwise manner, and the second winding is wound on the second magnetic column in an anticlockwise manner, so that the first incoming terminal of the first winding is not directly adjacent to the second incoming terminal of the adjacent second winding, and the first outgoing terminal of the first winding is also not directly adjacent to the second outgoing terminal of the adjacent second winding, thus the isolation distance between the first body of the first winding and the second body of the second winding is not too large, so that the overall distance between the first winding and the second winding is shortened, thus the volume of the overall magnetic assembly is smaller, and the inductance is larger. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 is a structural schematic diagram of a magnetic assembly according to a first embodiment of the present application;

[0009] Fig. 2 is an exploded structural schematic diagram of the magnetic assembly shown in Fig. 1;

[0010] Fig. 3 is a top view of the magnetic assembly shown in Fig. 1;

[0011] Fig. 4 is a bottom view of the magnetic assembly shown in Fig. 1;

[0012] Fig. 5 is an equivalent circuit structural diagram of the magnetic assembly shown in Fig. 1;

[0013] Fig. 6 is a structural schematic diagram of a magnetic assembly according to a second embodiment of the present application;

[0014] Fig. 7 is an exploded structural schematic diagram of the magnetic assembly shown in Fig. 6;

[0015] Fig. 8 is a top view of the magnetic assembly shown in Fig. 6;

[0016] Fig. 9 is a bottom view of the magnetic assembly shown in Fig. 6;

[0017] Fig. 10 is a top view of a magnetic assembly according to a third embodiment of the present application; and

[0018] Fig. 11 is a top view of a magnetic assembly according to a fourth embodiment of the present application.

[0019] Reference signs are as follows:

[0020] 1, 1a, 1b, 1c: magnetic assembly

[0021] 2: substrate

[0022] 3: magnetic core

[0023] 31: first magnetic column

[0024] 32: second magnetic column

[0025] 33: third magnetic column

[0026] 34: fourth magnetic column

[0027] 4: first winding

[0028] 41: first body

[0029] 42: first entry terminal

[0030] 43: first exit terminal

[0031] 44: first sub-winding

[0032] 45: second sub-winding

[0033] 5: second winding

[0034] 51: second body

[0035] 52: second entry terminal

[0036] 53: second exit terminal

[0037] 54: third sub-winding

[0038] 55: fourth sub-winding

[0039] 6: insulating component

[0040] 61: first insulating sub-component

[0041] 62: second insulating sub-component

[0042] 63: third insulating sub-component

[0043] 71: first inductor

[0044] 71a: first terminal

[0045] 71b: second terminal

[0046] 72: second inductor

[0047] 72a: first terminal

[0048] 72b: second terminal

[0049] 73: third inductor

[0050] 73a: first terminal

[0051] 73b: second terminal DETAILED DESCRIPTION

[0052] Some exemplary embodiments embodying features and advantages of the present application are described in detail below. It should be appreciated that the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0053] Please refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, wherein FIG. 1 is a structural schematic diagram of a magnetic assembly of a first embodiment of the present application, FIG. 2 is an exploded structural schematic diagram of the magnetic assembly shown in FIG. 1, FIG. 3 is a top view of the magnetic assembly shown in FIG. 1, and FIG. 4 is a bottom view of the magnetic assembly shown in FIG. 1. As shown in the figures, the magnetic assembly 1 of the present embodiment is arranged on a main circuit board (not shown) and comprises a substrate 2, a magnetic core 3, a first winding 4 and two second windings 5.

[0054] The magnetic core 3 is arranged on the substrate 2 and comprises a first magnetic column 31, a second magnetic column 32, a third magnetic column 33 and a fourth magnetic column 34, wherein the first magnetic column 31 and the second magnetic column 32 are located at opposite sides of the magnetic core 3, the third magnetic column 33 and the fourth magnetic column 34 are located at opposite sides of the magnetic core 3 and are respectively connected between the first magnetic column 31 and the second magnetic column 32. In the present embodiment, the two ends of the first magnetic column 31 of the magnetic core 3 are respectively connected with the first end of the third magnetic column 33 and the first end of the fourth magnetic column 34, and the two ends of the second magnetic column 32 of the magnetic core 3 are respectively connected with the second end of the third magnetic column 33 and the second end of the fourth magnetic column 34, so that the magnetic core 3 forms a closed structure, wherein 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 the present embodiment, the length of the first magnetic column 31 and the length of the second magnetic column 32 of the magnetic core 3 are greater than the length of the third magnetic column 33 and the length of the fourth magnetic column 34.

[0055] In the present embodiment, the first winding 4 is located between the two second windings 5. As shown in FIG. 1, FIG. 3 and FIG. 4, the first winding 4 is arranged on the first magnetic column 31 of the magnetic core 3 in a clockwise direction and comprises a first body 41, a first wire inlet end 42 and a first wire outlet end 43, the first body 41 is arranged on the first magnetic column 31 of the magnetic core 3, the first wire inlet end 42 is composed of the first end of the first winding 4 and is inserted into the substrate 2, and the first wire outlet end 43 is composed of 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 the electric energy provided by the main circuit board through the first wire inlet end 42 and provides the electric energy to the main circuit board through the first wire outlet end 43. In the present embodiment, as shown in FIG. 4, the first wire inlet end 42 and the first wire outlet end 43 of the first winding 4 are respectively located at opposite sides of the position where the first magnetic column 31 is mapped on the substrate 2, wherein the first wire outlet end 43 of the first winding 4 is located between the position where the first magnetic column 31 is mapped on the substrate 2 and the position where the second magnetic column 32 is mapped on the substrate 2.

[0056] Each second winding 5 is wound on the second magnetic leg 32 of the magnetic core 3 in a counterclockwise direction, and includes a second body 51, a second input terminal 52 and a second output terminal 53, the second body 51 is wound on the second magnetic leg 32 of the magnetic core 3, the second input terminal 52 is formed by a first end of the second winding 5 and is inserted into the substrate 2, and the second output terminal 53 is formed by a second end of the second winding 5 opposite to the first end and is inserted into the substrate 2, the second winding 5 receives the power provided by the main circuit board through the second input terminal 52 and provides the power to the main circuit board through the second output terminal 53. In the embodiment, as shown in FIG. 4, the second input terminal 52 and the second output terminal 53 of each second winding 5 are respectively located on opposite sides of the position where the second magnetic leg 32 is mapped on the substrate 2, and the second input terminal 52 of the second winding 5 is located between the position where the first magnetic leg 31 is mapped on the substrate 2 and the position where the second magnetic leg 32 is mapped on the substrate 2. In the embodiment, the number of turns of the first body 41 of the first winding 4 wound on the first magnetic leg 31 is equal to the number of turns of the second body 51 of each second winding 5 wound on the second magnetic leg 32, for example, five turns.

[0057] As shown in FIG. 3 and FIG. 4, in the embodiment, since the first winding 4 is wound on the first magnetic leg 31 in a clockwise direction and the second winding 5 is wound on the second magnetic leg 32 in a counterclockwise direction, the first input terminal 42 of the first winding 4 and the second input terminal 52 of the adjacent second winding 5 are respectively located on opposite sides of the first magnetic leg 31, and the first output terminal 43 of the first winding 4 and the second output terminal 53 of the adjacent second winding 5 are respectively located on opposite sides of the second magnetic leg 32.

[0058] As shown in FIG. 3 and FIG. 4, in the embodiment, since the first winding 4 is wound on the first magnetic leg 31 in a clockwise direction and the second winding 5 is wound on the second magnetic leg 32 in a counterclockwise direction, the first input terminal 42 of the first winding 4 and the second input terminal 52 of the adjacent second winding 5 are respectively located on opposite sides of the first magnetic leg 31, and the first output terminal 43 of the first winding 4 and the second output terminal 53 of the adjacent second winding 5 are respectively located on opposite sides of the second magnetic leg 32.

[0059] Please continue to refer to FIG. 1 to FIG. 4, in the embodiment, the magnetic assembly 1 further comprises an insulation component 6 for insulating the first winding 4 and the two second windings 5. The insulation component 6 comprises a first insulation sub-component 61, two second insulation sub-components 62 and two third insulation sub-components 63. The first insulation sub-component 61 is located between the first body 41 of the first winding 4 and the second magnetic column 32. The two second insulation sub-components 62 are respectively arranged on opposite sides of the first insulation sub-component 61, wherein each second insulation sub-component 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 insulation sub-components 63 are respectively arranged on the side of the corresponding second insulation sub-component 62 away from the first insulation sub-component 61, wherein each third insulation sub-component 63 is located between the second body 51 of the second winding 5 and the first magnetic column 31.

[0060] Please refer to FIG. 5 in combination with FIG. 1 to FIG. 4, wherein FIG. 5 is an equivalent circuit structure diagram of the magnetic assembly shown in FIG. 1. As shown in FIG. 5, in terms of circuit structure, the magnetic assembly 1 constitutes three inductances, which are respectively a first inductance 71, a second inductance 72 and a third inductance 73. The first inductance 71 is constituted by the first winding 4 wound on the first magnetic column 31, wherein the first end 71a of the first inductance 71 is constituted by the first wire-in end 42 of the first winding 4, and the second end 71b of the first inductance 71 is constituted by the first wire-out end 43 of the first winding 4. The second inductance 72 is constituted by one of the second windings 5 wound on the second magnetic column 32, wherein the first end 72a of the second inductance 72 is constituted by the second wire-out end 53 of the corresponding second winding 5, and the second end 72b of the second inductance 72 is constituted by the second wire-in end 52 of the corresponding second winding 5. The third inductance 73 is constituted by the other second winding 5 wound on the second magnetic column 32, wherein the first end 73a of the third inductance 73 is constituted by the second wire-out end 53 of the corresponding second winding 5, and the second end 73b of the third inductance 73 is constituted by the second wire-in end 52 of the corresponding second winding 5. In the embodiment, the second end 72b of the second inductance 72, the first end 71a of the first inductance 71 and the second end 73b of the third inductance 73 are the same-named ends.

[0061] Please refer to FIG. 6, FIG. 7, FIG. 8 and FIG. 9, wherein FIG. 6 is a structural schematic diagram of the magnetic assembly of the second embodiment of the present application, FIG. 7 is an exploded structural schematic diagram of the magnetic assembly shown in FIG. 6, FIG. 8 is a top view of the magnetic assembly shown in FIG. 6, and FIG. 9 is a bottom view of the magnetic assembly shown in FIG. 6. As shown in the figures, compared with the magnetic assembly 1 shown in FIG. 1 to FIG. 4, the number of the first windings 4 of the magnetic assembly 1a of the present embodiment is one, and the number of the second windings 5 is two, wherein 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 of the present embodiment are similar to those of the first winding 4 and the second winding 5 of FIG. 1 to FIG. 4, and thus will not be described herein again. In the present embodiment, the insulating component 6 of the magnetic assembly 1a only comprises a first insulating sub-component 61, a single second insulating sub-component 62 and a single third insulating sub-component 63, so as to isolate the first winding 4 and the adjacent second winding 5, and the arrangement manner thereof is similar to that of the insulating component 6 of the magnetic assembly 1 of the first embodiment, and thus will not be described herein again. In the present embodiment, the magnetic core 3 only comprises a first magnetic column 31 and a second magnetic column 32, the first magnetic column 31 and the second magnetic column 32 are respectively in the shape of a circular arc, 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, wherein the first magnetic column 31 and the second magnetic column 32 of the magnetic core 3 are integrally formed.

[0062] Please refer to FIG. 10, which is a top view of the magnetic assembly of the third embodiment of the present application. As shown in the figure, compared with the magnetic assembly 1 of FIG. 3, the first body 41 of the first winding 4 of the magnetic assembly 1b of the present embodiment comprises a first sub-winding 44 and a second sub-winding 45, the first sub-winding 44 and the second sub-winding 45 are arranged on the first magnetic column 31 in a spaced manner, 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 the present embodiment, the number of turns of the first sub-winding 44 arranged on the first magnetic column 31 and the number of turns of the second sub-winding 45 arranged on the first magnetic column 31 are equal to the number of turns of each second winding 5 arranged on 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 the present embodiment, the number of turns of the second winding 5 is four turns.

[0063] Referring to FIG. 11, it is a top view of the magnetic assembly of the fourth embodiment of the present application. As shown, compared with the magnetic assembly lb shown in FIG. 10, the second body 51 of each second winding 5 of the magnetic assembly lc of the present embodiment comprises a third sub-winding 54 and a fourth sub-winding 55, the third sub-winding 54 and the fourth sub-winding 55 are disposed on the second magnetic column 32 in a spaced manner, 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 the present embodiment, the number of turns of the first sub-winding 44 disposed on the first magnetic column 31 and the number of turns of the second sub-winding 45 disposed on the first magnetic column 31 are equal to the number of turns of the third sub-winding 54 disposed on the second magnetic column 32 and the number of turns of the fourth sub-winding 55 disposed on the second magnetic column 32, for example, the first sub-winding 44 and the second sub-winding 45 are two turns respectively, or the first sub-winding 44 is one turn and the second sub-winding 45 is three turns.

[0064] In summary, the first winding of the magnetic assembly of the present application is disposed on the first magnetic column in a clockwise manner, and the second winding is disposed on the second magnetic column in a counterclockwise manner, so that the first incoming line end of the first winding and the second incoming line end of the adjacent second winding are not directly adjacent, and the first outgoing line end of the first winding and the second outgoing line end of the adjacent second winding are also not directly adjacent, so that the isolation distance between the first body of the first winding and the second body of the second winding does not need to be too large, the overall distance between the first winding and the second winding is shortened, so that the volume of the overall magnetic assembly is smaller, and the inductance is larger.

Claims

1. A magnetic component comprising: a substrate; A magnetic core is disposed on the substrate and includes a first magnetic column and a second magnetic column, wherein the first magnetic column and the second magnetic column are located on opposite sides of the magnetic core; At least one first winding is wound on the first magnetic column of the magnetic core in a clockwise direction and includes a first input terminal and a first output terminal, wherein the first input terminal and the first output terminal are inserted into the substrate; and At least one second winding is wound on the second magnetic column of the magnetic core in a counterclockwise direction 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.

2. The magnetic component as described in claim 1, wherein the first input terminal and the first output terminal of each first winding are respectively located on opposite sides of the position where the first magnetic column is mapped on the substrate, and the second input terminal and the second output terminal of each second winding are respectively located on opposite sides of the position where the second magnetic column is mapped on the substrate.

3. The magnetic component as described in claim 1, wherein the first input end of each first winding and the second input end of the adjacent second winding are respectively located on opposite sides of the position where the first magnetic column is mapped on the substrate, and the first output end of each first winding and the second output end of the adjacent second winding are respectively located on opposite sides of the position where the second magnetic column is mapped on the substrate. 4 . The magnetic component as claimed in claim 1 , wherein the magnetic component comprises an insulating component, wherein at least a portion of the insulating component is located between any two windings of the at least one first winding and the at least one second winding. 5 . The magnetic component as claimed in claim 1 , wherein the at least one first winding comprises a single first winding, the at least one second winding comprises two second windings, and the first winding is located between the two second windings. 6 . The magnetic component of claim 1 , wherein the at least one first winding comprises a single first winding, the at least one second winding comprises two second windings, and one of the two second windings is located between the other second winding and the first winding.

7. The magnetic assembly as described in claim 1, wherein the magnetic core further includes a third magnetic column and a fourth magnetic column, the third magnetic column and the fourth magnetic column are located on opposite sides of the magnetic core, wherein two ends of the first magnetic column are respectively connected to a first end of the third magnetic column and a first end of the fourth magnetic column, and two ends of the second magnetic column are respectively connected to a second end of the third magnetic column and a second end of the fourth magnetic column, so that the magnetic core forms a closed structure, wherein the closed structure is composed of the first magnetic column, the second magnetic column, the third magnetic column and the fourth magnetic column or is an integrally formed structure.

8. The magnetic component as described in claim 1, wherein the first magnetic column and the second magnetic column of the magnetic core are respectively arc-shaped, and the two ends of the first magnetic column are respectively connected to the two ends of the second magnetic column, so that the magnetic core forms a closed structure, wherein the first magnetic column and the second magnetic column of the magnetic core are an integrally formed structure. 9 . The magnetic assembly as claimed in claim 1 , wherein 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.

10. The magnetic component of claim 1 , wherein each of the first windings comprises a first body, the first body comprises a first sub-winding and a second sub-winding, the first sub-winding and the second sub-winding are connected in series or in parallel, and 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.

11. The magnetic component of claim 10 , wherein each of the second windings comprises a second body, the second body comprises a third sub-winding and a fourth sub-winding, the third sub-winding and the fourth sub-winding are connected in series or in parallel, and 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.

12. The magnetic component as claimed in claim 11, wherein 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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