TWI530970B - Manufacturing Method of Coil Module, Coil Module and Magnetic Element - Google Patents

Description

Coil module manufacturing method, coil module and magnetic component

The invention relates to a method for manufacturing a coil module, a coil module and a magnetic component.

With the advancement of technology, electronic products are also developing towards a light and thin trend. Therefore, the parts inside the electronic product should also be reduced as much as possible. For example, components such as inductors, capacitors, and resistors can reduce the size of these components in electronic products. In addition to reducing the size of electronic products, more electronic zeros can be accommodated in the same space inside the electronic products. Components, more space utilization.

For example, the inductor is a component composed of a coil-wound iron core, wherein the coil itself often needs to be wound with a plurality of turns, and the coil wire has a certain wire diameter. If the number of turns of the coil is larger, the size of the inductor also follows The bigger the number, the more obstacles to the downsizing of electronic products.

One aspect of the present invention provides a method of manufacturing a coil module, The method comprises the steps of: a. winding the linear conductor out of the first outer ring; b. winding the linear conductor along the inner diameter of the first outer ring to form the first inner ring, wherein the first outer ring and the first inner ring The ring forms a first coil layer; c. the wire conductor is wound from one end of the first inner ring to the second inner ring, and the second inner ring and the first inner ring face each other; and d. the linear conductor is along The outer diameter of the second inner ring is wound to form a second outer ring, wherein the second inner ring and the second outer ring form a second coil layer adjacent to the first coil layer.

Another aspect of the present invention provides a method of manufacturing a coil module, comprising the steps of: f. winding a linear conductor in a first winding direction to form a first inner ring; and g. An outer diameter of an inner ring and a first outer ring wound in a first winding direction, wherein the first inner ring forms a first coil layer with the first outer ring; h. the linear conductor is from one end of the first inner ring a second winding direction, wherein the first inner ring faces the second inner ring, and the first winding direction is opposite to the second winding direction; and i. bonding the linear conductor to the second inner ring An outer diameter, and a second outer ring is wound in the second winding direction, wherein the second inner ring and the second outer ring form a second coil layer of the adjacent first coil layer.

In addition, the present invention further provides a coil module including a plurality of coil layers, each coil layer including an outer ring and an inner ring, and the inner ring is wound along an inner diameter of the outer ring, wherein one end of the inner ring of the partial coil layer Connecting adjacent coils One end of the inner ring of the layer.

The present invention also provides a magnetic shaped component comprising the coil module and the iron core described above, wherein the iron core is disposed in an inner ring of each coil layer.

In summary, the manufacturing method of the coil module of the present invention provides two different coil winding methods, so that each coil layer in the coil module has at least two coils, so that the same number of turns can be used. Reduce the length of the coil module in the axial direction. As a result, the magnetic components of the coil module are correspondingly smaller in size, which is in line with the trend that the electronic products will become smaller and smaller in the future.

10‧‧‧Magnetic components

20, 21, 22, 23, 24‧‧‧ coil modules

30‧‧‧ iron core

200‧‧‧Line conductor

201‧‧‧ first end

202‧‧‧ second end

211‧‧‧ first outer ring

212‧‧‧Second outer ring

213‧‧‧ Third outer ring

214‧‧‧fourth outer ring

221‧‧‧First inner circle

222‧‧‧Second inner circle

223‧‧‧ Third inner ring

224‧‧‧ fourth inner ring

D‧‧‧ winding direction

D1‧‧‧First winding direction

D2‧‧‧second winding direction

A‧‧‧Axial direction

L1‧‧‧ first coil layer

L2‧‧‧second coil layer

L3‧‧‧ third coil layer

L4‧‧‧fourth coil layer

K1‧‧‧ first group

K2‧‧‧Group 2

In order to make the invention and its advantages more apparent, the description of the drawings is as follows:

Fig. 1 is an exploded view of a magnetic element according to a first embodiment of the present invention.

Fig. 2 is a perspective view of a coil module according to a first embodiment of the present invention.

3A to 3D are views showing a state of the manufacturing process of the coil module according to the first embodiment of the present invention.

Figure 4 is a side view of a coil module in accordance with a second embodiment of the present invention.

Fig. 5A is a side view of the coil module of the third embodiment of the present invention.

Fig. 5B is a front elevational view showing the coil module of the third embodiment of the present invention.

6A to 6D are views showing another aspect of the manufacturing process of the coil module according to the first embodiment of the present invention.

Figure 7 is a side view of a coil module in accordance with a fourth embodiment of the present invention.

Figure 8 is a side view of a coil module in accordance with a fifth embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of illustration However, it should be understood that these practical details are not intended to limit the invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions.

The terms "first", "second", etc., used herein are not intended to refer to the order or order, nor are they intended to limit the invention, only to distinguish between elements or operations described in the same technical terms. Only. In the following description, the same components will be denoted by the same reference numerals for the sake of understanding.

1 and 2, FIG. 1 is an exploded view of a magnetic element 10 according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a coil module 20 according to a first embodiment of the present invention. As shown, the magnetic element 10 includes a coil module 20 and a core 30. The coil module 20 includes a plurality of coil layers, and each coil layer is wound by an outer ring and an inner ring. More specifically, taking the embodiment of FIG. 2 as an example, the coil module 20 may include a first coil layer L1 and a second coil layer L2, wherein the first coil layer L1 includes a first inner ring 221 and a first outer layer The second coil layer L2 includes a second inner ring 222 and a second outer ring 212.

Referring to FIGS. 1 and 2 , the core 30 is disposed through the first inner ring 221 of the first coil layer L1 and the second inner ring 222 of the second coil layer L2 . In this way, when the current passes through the first coil layer L1 and the second coil layer L2, the iron core 30 can strengthen the first coil layer L1 and the second coil layer. The strength of the magnetic field generated around L2. In an embodiment, the magnetic component 10 can be an inductor, but is not limited thereto. In practical applications, the wires in the first coil layer L1 and the second coil layer L2 can transmit a current of about 40 amps. In addition, the wires in the first coil layer L1 and the second coil layer L2 may include a conductive metal, such as an alloy containing copper or copper, and the wire diameters of the first coil layer L1 and the second coil layer L2 may be 0.0001 mm to Between 5 mm. More specifically, the wires in the first coil layer L1 and the second coil layer L2 may be motor wires, and the types thereof may include, but are not limited to, Enamelled Copper Wire, Enamelled Wire, and Copper Wire ( Copper Wire), Enamelled Flat Copper Wire, Enamelled Flat Wire, Flat Copper Wire or Flat Wire.

Please refer to FIG. 1 and FIG. 2 together. The coil module 20 can include a first end 201 and a second end 202. The first end 201 and the second end 202 may be exposed outside the core 30 of the magnetic component 10. More specifically, in this embodiment, the first end 201 can extend from the first outer ring 211 of the first coil layer L1, and the second end 202 can extend from the second outer ring 212 of the second coil layer L2. And out. The first end 201 and the second end 202 can be used to connect to an external current source.

Referring to FIG. 2 , in the embodiment, the first inner ring 221 is wound along the inner diameter of the first outer ring 211 , and the first inner ring 221 and the first outer ring 211 are integrally formed into a line shape. The conductor is wound. Similarly, the second inner ring 222 can be wound along the inner diameter of the second outer ring 212, and the second inner ring 222 and the second outer ring 212 are integrally formed by linear conductor winding. this In addition, in this embodiment, one end of the first inner ring 221 is coupled to one end of the second inner ring 222. That is, the first inner ring 221 of the first coil layer L1 is connected to the second inner ring 222 of the second coil layer L2. Furthermore, the coil module 20 of the present embodiment can wind the first coil layer L1 and the second coil layer L2 by the same linear conductor, and each layer of the coil layer has a number of turns of at least two turns. In detail, if each coil layer has only one turn, then a coil module with 4 turns requires at least four layers of coil layers to be wound by a linear conductor. In this embodiment, each layer of the coil layer has two turns of turns, so that only two layers of coil layers (ie, the first coil layer L1 and the second coil layer L2) are required to wind the coil module 20 having a number of turns of four. Therefore, the size of the coil module 20 and the magnetic element 10 can be reduced.

Next, please refer to FIGS. 3A to 3D, which are one aspect of the manufacturing process diagram of the coil module 20 according to the first embodiment of the present invention. First, the method of manufacturing the coil module 20 includes the following steps:

a. The first outer ring 211 is wound around the linear conductor 200.

b. The first inner ring 221 is wound around the inner diameter of the first outer ring 211, wherein the first outer ring 211 and the first inner ring 221 form a first coil layer L1.

c. The wire conductor 200 is wound from one end of the first inner ring 221 to the second inner ring 222, and the first inner ring 221 and the second inner ring 222 face each other.

d. winding the linear conductor 200 along the outer diameter of the second inner ring 222 to form the second outer ring 212, wherein the second inner ring 222 and the second outer ring 212 form a second coil adjacent to the first coil layer L1 Layer L2.

Please refer to FIG. 3A. In step a, the linear conductor 200 is substantially The first outer ring 211 is wound in a circular manner and in a counterclockwise winding direction D, but the invention is not limited thereto. In other embodiments, the linear conductor 200 may be wound in a counterclockwise direction to form the first outer ring 211, and the first outer ring 211 is not limited to a ring shape, and may be rectangular, prismatic or polygonal. In addition, in the embodiment, the linear conductor 200 may first wind the first outer ring 211 from a first end 201. The first end 201 extends from the first outer ring 211 and serves as a contact for an external current source. In this embodiment, the first end 201 is located in the same plane layer as the first coil layer L1. That is, the position of the first end 201 is located in the plane of the first coil layer L1 to prevent the first end 201 from increasing the length of the coil module 20 in the axial direction A (shown on FIG. 3B).

Please refer to FIG. 3B, which shows both a front view and a side view. In the step b, the linear conductor 200 is wound around the inner diameter of the first outer ring 211 to form the first inner ring 221, wherein the linear conductor 200 is wound around the winding direction D of the first inner ring 221 and the linear conductor 200. The first outer ring 211 is identical, that is, it is counterclockwise. At this time, the first inner ring 221 and the first outer ring 211 form the first coil layer L1.

Referring to FIG. 3C, in step c, the linear conductor 200 is wound from one end of the first inner ring 221 to the second inner ring 222, wherein the linear conductor 200 is wound in the winding direction D of the second inner ring 222. When the first inner ring 221 is wound, it is uniform, that is, it is counterclockwise. In the present embodiment, the second inner ring 222 is not in the first coil layer L1 but in the axial direction A of the first coil layer L1. More specifically, there is at least one turning point P between the second inner ring 222 and the first inner ring 221, so that the linear conductor 200 is bent away from the first coil layer L1 in the axial direction A, and is wound out. Two inner rings 222. In addition, After the second inner ring 222 is wound, the linear conductor 200 can face the first inner ring 221 and overlap one side of the first inner ring 221 to minimize the length of the coil module 20 in the axial direction A. .

Referring to FIG. 3D, in step d, the linear conductor 200 is wound along the outer diameter of the second inner ring 222 to form a second outer ring 212, wherein the linear conductor 200 is wound in the winding direction of the second outer ring 212. D coincides with the winding of the second inner ring 222, that is, counterclockwise. Further, after the second outer ring 212 is wound, the linear conductor 200 may face the first outer ring 211 and be superposed on one side of the first outer ring 211. At this time, the second inner ring 222 and the second outer ring 212 may form a second coil layer L2 adjacent to the first coil layer L1. In this embodiment, after the linear conductor 200 sequentially winds out the first outer ring 211, the first inner ring 221, the second inner ring 222, and the second outer ring 212 from the first end 201, the remaining lines can be The conductor 200 is cut away to form the second end 202 of the coil module 20. As shown in FIG. 3D, the second end 202 protrudes beyond the second outer ring 212 and serves as a contact for an external current source. In this embodiment, the second end 202 and the second coil layer L2 may be located in the same plane layer to prevent the second end 202 from increasing the length of the coil module 20 in the axial direction A.

In this way, the coil module 20 of the embodiment only needs two layers of coil layers (ie, the first coil layer L1 and the second coil layer L2) to have a number of coils of four turns, so that the coil module 20 can be applied. The magnetic element 10 maintains a certain magnetic induction capability during the miniaturization process.

Please refer to FIG. 4, which is a side view of the coil module 21 according to the second embodiment of the present invention. As shown in the figure, in the embodiment, the coil module 21 includes a plurality of first coil layers L1 and a plurality of second coil layers L2, wherein A coil layer L1 and a second coil layer L2 are alternately stacked. Taking the embodiment of FIG. 4 as an example, the total number of the plurality of first coil layers L1 and the plurality of second coil layers L2 is an even number.

As shown in FIG. 4, in the present embodiment, the number of coil turns of the coil module 21 can be increased by using a plurality of first coil layers L1 and a plurality of second coil layers L2 stacked on each other. At the same time, each coil layer of the embodiment includes at least two coils, that is, an outer ring and an inner ring. Therefore, the coil module 21 of the present embodiment can prevent the length of the coil module 21 in the axial direction A from being excessively long when the number of turns is increased. In addition, it should be understood that although the embodiment has two coils per coil layer as an example, in other embodiments, each coil layer may include three or more coils, so that the number of turns of the coil is improved. The length of the coil module in the axial direction A is reduced.

Please refer to FIG. 4 again. In the present embodiment, the manufacturing method of the coil module 21 can be completed by repeating the above steps a to d. That is, after the step d is completed, after the first coil layer L1 and the second coil layer L2 of the first group K1 are wound, the steps a to d may be continued to wind the first coil layer of the second group K2. L1 and the second coil layer L2. That is, after completing the first steps a~d, returning to step a, the first coil of the second group K2 is wound by one end of the second outer ring 212 of the second coil layer L2 of the first group K1. The first outer ring 211 of layer L1. That is, in the embodiment of FIG. 4, one end of the second outer ring 212 of the second coil layer L2 of the first group K1 is coupled to the first outer ring 211 of the first coil layer L1 of the adjacent second group K2. One end.

Referring to FIG. 4, the coil module 21 can be wound around the first outer ring 211 of the first coil layer L1 by the first end 201, so the coil The first end 201 of the module 21 and the outermost first coil layer L1 belong to the same planar layer. Similarly, since the number of coil layers of the coil module 21 of the embodiment of FIG. 4 is an even layer, the second end 202 of the coil module 21 may be the second outer ring 212 of the outermost second coil layer L2. Extending out, the second end 202 and the second coil layer L2 can be located in the same planar layer. In other words, in the embodiment, the step a may further include: a1. The first end 201 of the linear conductor 200 is wound from the first outer ring 211 of the outermost first coil layer L1.

In addition, after the step d described above, the second outer end 212 of the linear conductor 200 is formed from the second outer ring 212 of the outermost second coil layer L2.

In this way, the coil layers of the coil module 21 of the present embodiment have two or more turns, so that the length of the coil module 21 in the axial direction A can be reduced under the same number of turns. In addition, since the first end 201 and the second end 202 respectively extend from the first outer ring 211 and the second outer ring 212, the first end 201 and the second end 202 do not additionally increase the coil module 21 on the axis. The length in the direction A.

Please refer to FIG. 5A and FIG. 5B together, which are respectively a side view and a front view of the coil module 22 of the third embodiment of the present invention. As shown in the figure, in the embodiment, the coil module 22 includes a plurality of first coil layers L1 and at least one second coil layer L2, wherein the first coil layer L1 and the second coil layer L2 are alternately stacked. Taking the embodiment of FIG. 5A and FIG. 5B as an example, the total number of the plurality of first coil layers L1 and the at least one second coil layer L2 is an odd number.

Please refer to FIG. 5A and FIG. 5B. In this embodiment, the manufacturing method of the coil module 22 can be completed by repeating at least some of the above steps a to d. For example, in the embodiment of FIG. 5A and FIG. 5B, only step a~b is repeated, so in this embodiment, there are two first coil layers L1 and one second coil layer L2, wherein the second coil layer L2 is interposed. Between the two first coil layers L1. At this time, the first end 201 of the coil module 22 and the outermost first coil layer L1 belong to the same plane layer. Since the coil module 22 has a total number of coil layers, the outermost two coil layers of the coil module 22 are the first coil layer L1. Moreover, since the first coil layer L1 first forms the first outer ring 211 and then the first inner ring 221 is formed, the second end 202 of the coil module 22 needs to be from the first inner ring 221 of the other first coil layer L1. Pulling out, the second end 202 of the coil module 22 is located outside the outermost other first coil layer L1. In other words, in the embodiment, the step a may further include: a1. The first end 201 of the linear conductor 200 is wound from the first outer ring 211 of the outermost first coil layer L1.

In addition, after repeating the above step b, the method further includes: e2. forming the second end 202 of the linear conductor 200 from the first inner ring 221 of the other outermost first coil layer L1.

In this way, the coil layers of the coil module 22 of the present embodiment have two or more turns, so that the length of the coil module 22 in the axial direction A can be reduced under the same number of turns.

Please refer to FIGS. 6A to 6D, which are another aspect of the manufacturing process diagram of the coil module 20 according to the first embodiment of the present invention. First of all, The manufacturing method of the coil module 20 includes the following steps:

f. The first inner ring 221 is wound around the linear conductor 200 in the first winding direction D1.

g. The linear conductor 200 is wound around the outer diameter of the first inner ring 221 and along the first winding direction D1 to form the first outer ring 211, wherein the first inner ring 221 and the first outer ring 211 form a first coil Layer L1.

h. The second inner ring 222 is wound from the one end of the first inner ring 221 in the second winding direction D2, wherein the first inner ring 221 faces the second inner ring 222, and the first winding direction D1 Contrary to the second winding direction D2.

i. The linear conductor 200 is attached to the outer diameter of the second inner ring 222, and the second outer ring 212 is wound in the second winding direction D2, wherein the second inner ring 222 and the second outer ring 212 are adjacent to each other. The second coil layer L2 of the first coil layer L1.

Referring to FIG. 6A, in step f, the linear conductor 200 is first wound around the first inner ring 221 in a clockwise first winding direction D1. It should be understood that in other embodiments, the first winding direction D1 of the linear conductor 200 may also be a counterclockwise direction. In addition, the first inner ring 221 is not limited to a ring shape, and may be a rectangle, a prism, a polygon, or the like.

Referring to FIG. 6B, in step g, the linear conductor 200 is wound around the outer diameter of the first inner ring 221 to form a first outer ring 211, wherein the linear conductor 200 is wound around the first outer ring 211. Direction D1 is also clockwise. At this time, the first inner ring 221 and the first outer ring 211 form the first coil layer L1. Further, in the present embodiment, after the step g is performed, the first end 201 may be formed from one end of the first outer ring 211 of the first coil layer L1. And, since the first end 201 can be formed to extend from the first outer ring 211, the first end 201 It can be located in the same plane layer as the first coil layer L1 without increasing the length of the coil module 20 in the axial direction A.

Referring to FIG. 6C, in step h, the linear conductor 200 is wound from the one end of the first inner ring 221 in the second winding direction D2 to the second inner ring 222, wherein the linear conductor 200 is wound around the second inner ring. The second winding direction D2 of 222 is opposite to the first winding direction D1. That is, the second winding direction D2 is a counterclockwise direction. More specifically, in the present embodiment, there is a turning point P between the first inner ring 221 and the second inner ring 222. Before proceeding to step f, it is necessary to determine the position of the P at the turning point of the linear conductor 200. In step f, the linear conductor 200 is wound from the turning point P in the first winding direction D1 (ie, clockwise direction) to form the first inner ring 221, and in step h, the linear conductor 200 is turned from the turning point P The second inner ring 222 is wound in the second winding direction D2 (ie, counterclockwise), wherein the first inner ring 221 faces the second inner ring 222.

Referring to FIG. 6D, in step i, the linear conductor 200 is wound along the outer diameter of the second inner ring 222, and the second outer ring is wound along the second winding direction D2 (shown in FIG. 6C). 212. At this time, the second inner ring 222 and the second outer ring 212 form a second coil layer L2 adjacent to the first coil layer L1. Further, in the present embodiment, after step i is performed, the second end 202 may be formed from the second outer ring 212 of the second coil layer L2. Moreover, since the second end 202 can be formed from the second outer ring 212, the second end 202 and the second coil layer L2 can be located in the same planar layer without increasing the thickness of the coil module 20.

It should be understood that the order described in the above steps f, g, step h, and step i does not represent the order of actual execution. For example, in this embodiment, after the step f of winding the first inner ring 221 is performed, The step h of winding the second inner ring 222 is performed, and then step g and step i are performed simultaneously or separately.

In addition, in the manufacturing process using the steps f~i, since the first inner ring 221 and/or the second inner ring 222 can be fabricated first, the length of the linear conductor 200 used to manufacture the coil module 20 must first be Decided. Taking the embodiment as an example, the length of the linear conductor 200 must be at least greater than the total length required to fabricate the first inner ring 221, the first outer ring 211, the second inner ring 222, and the second outer ring 212. In contrast, in the manufacturing process of steps a to d, since the first outer ring 211 is first produced, the first inner ring 221, the second inner ring 222, and the second outer ring 212 may be sequentially formed, so steps a to d The fabrication process may directly trim the linear conductor 200 after step d to form the second end 202. When the product is produced, the method of steps a~d or the method of step f~i can be selected depending on the actual situation. For example, if the method of steps a~d is selected, since the coil module is wound along the same winding direction, the mechanical device can be used to assist the winding operation, and if the method of step f~i is selected, Because there are two different winding directions, it is convenient to use manual winding.

Please refer to FIG. 7, which is a side view of the coil module 23 of the fourth embodiment of the present invention. As shown, the coil module 23 includes a third coil layer L3 that is immediately adjacent to one side of the first coil layer L1. That is, the first coil layer L1 is located between the third coil layer L3 and the second coil layer L2. The third coil layer L3 includes a third inner ring 223 and a third outer ring 213, wherein the third outer ring 213 can be formed from one end of the first outer ring 211 of the first coil layer L1, and the third inner ring 223 can be along The inner diameter of the third outer ring 213 is wound. In short, after the completion of the fabrication of the first coil layer L1 (ie, completed) After the step f and the step g), the coil module 23 can be manufactured in the step k: k. The linear conductor 200 is wound from one end of the first outer ring 211 and sequentially wound along the first winding direction D1. The third outer ring 213 and the third inner ring 223.

Referring to FIG. 7 , the coil module 23 may further include a first end 201 and a second end 202. More specifically, after step k, the method may further include: k1. The third inner ring from the third coil layer L3. 223 forming a first end 201 of the linear conductor 200, and the first end 201 is located outside the third coil layer L3; and k2. forming a second end 202 from the second outer ring 212 of the second coil layer L2, and second The end 202 and the second coil layer L2 are located in the same plane layer.

Furthermore, in the embodiment of FIG. 7, the first end 201 extends from the third inner ring 223 of the third coil layer L3, so it needs to be from the one end of the third inner ring 223 to the axial direction A. Bend to form the first end 201. Therefore, the first end 201 is located outside the third coil layer L3. The second end 202 can be located in the same planar layer as the second coil layer L2 because the second end 202 extends from the second outer ring 212 of the second coil layer L2. In this way, in the coil module 23 of the embodiment, each layer of the coil layer has a number of turns of at least two turns, and the length of the coil module 23 in the axial direction A can be reduced with the same number of turns.

It should be understood that, in some embodiments, after forming the third coil layer L3, step f and step g may be repeated, so that one side of the third coil layer L3 may be further formed with another first coil layer L1 (Fig. Not shown). At this time, the total number of coil layers of the coil module is an even number, and the first end 201 can be from the outermost side. The first outer ring 211 of the first coil layer L1 is formed to extend without additionally increasing the length of the coil module in the axial direction A.

Please refer to FIG. 8, which is a side view of a coil module 24 according to a fifth embodiment of the present invention. As shown, the coil module 24 includes a fourth coil layer L4 that is immediately adjacent to one side of the second coil layer L2. That is, the second coil layer L2 is located between the fourth coil layer L4 and the first coil layer L1. The fourth coil layer L4 includes a fourth inner ring 224 and a fourth outer ring 214, wherein the fourth outer ring 214 can be formed from one end of the second outer ring 212 of the second coil layer L2, and the fourth inner ring 224 can be along The inner diameter of the fourth outer ring 214 is wound. In short, after the fabrication of the second coil layer L2 is completed (ie, after step h and step i are completed), the method of fabricating the coil module 24 can be performed in step 1: l. The linear conductor 200 is removed from the second outer ring 212. One end, and the fourth outer ring 214 and the fourth inner ring 224 are sequentially wound in the second winding direction D2.

Continuing to refer to FIG. 8 , the coil module 24 may further include a first end 201 and a second end 202. More specifically, after step 1, the method further includes: m. the first outer ring from the first coil layer L1. 211 forms a first end 201 of the linear conductor 200, and the first end 201 is in the same plane layer as the first coil layer L1; and n. the fourth inner ring 224 from the fourth coil layer L4 forms a linear conductor 200 The second end 202 and the second end 202 are outside the fourth coil layer L4.

It should be understood that, in some embodiments, after forming the fourth coil layer L4, step h and step i may be repeated such that one side of the fourth coil layer L4 may be further formed with another second coil layer L2. At this time, the coil layer of the coil module The total number is even, and the second end 202 can be formed from the outer circumference of the outermost coil layer without additionally increasing the length of the coil module in the axial direction A.

In summary, the manufacturing method of the coil module of the present invention provides two different coil winding methods, so that each coil layer in the coil module has at least two coils, so that the same number of turns can be used. The length of the coil module in the axial direction is reduced, so that the magnetic component to which the coil module is applied has a small volume to conform to the trend that the future electronic products are getting smaller and smaller.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

20‧‧‧ coil module

201‧‧‧ first end

202‧‧‧ second end

211‧‧‧ first outer ring

212‧‧‧Second outer ring

221‧‧‧First inner circle

222‧‧‧Second inner circle

L1‧‧‧ first coil layer

L2‧‧‧second coil layer

Claims (23)

A method for manufacturing a coil module, comprising: a. winding a linear conductor to form a first outer ring; b. winding the linear conductor along a inner diameter of the first outer ring to form a first inner ring The first outer ring and the first inner ring form a first coil layer; c. the wire conductor is wound from one end of the first inner ring to form a second inner ring, and the second inner ring Facing the first inner ring facing each other; and d. winding the linear conductor along the outer diameter of the second inner ring to form a second outer ring, wherein the second inner ring and the second outer ring form Adjacent to the second coil layer of one of the first coil layers. The method of manufacturing the coil module of claim 1, wherein the linear conductor sequentially winds the first outer ring, the first inner ring, the second inner ring, and the second from a first end The outer ring, and after step d, cuts the linear conductor to form a second end. The method for manufacturing a coil module according to claim 1, further comprising repeating steps a to d to form a plurality of the first coil layers and the plurality of second coil layers alternately stacked, and the first coils The sum of the layers and the second coil layers is an even number. The method for manufacturing a coil module according to claim 3, wherein the step The step a further includes: a1. winding the first outer ring of the outermost first coil layer from one of the first ends of the linear conductor, and the first end is located at the outermost first coil layer The same planar layer, wherein, after the step d, further comprising: e1. the second outer ring of the second coil layer from the outermost side forms a second end of the linear conductor, and the second end and the outermost side The second coil layer is located in the same planar layer. The method for manufacturing a coil module according to claim 1, further comprising at least repeating steps a to b to wind at least one of the first coil layers. The method for manufacturing a coil module according to claim 5, further comprising at least repeating steps a to d to wind a plurality of the first coil layers and at least one of the second coil layers, wherein the first coils The layer is interleaved with the at least one second coil layer, and the number of the first coil layers and the at least one second coil layer is an odd number. The method for manufacturing a coil module according to any one of the preceding claims, wherein the step a further comprises: a1. winding the outermost one of the first coils from a first end of the linear conductor The first outer ring of the layer, and the first end is located in the same plane layer as the outermost first coil layer, wherein after step d, the method further comprises: E2. The first inner ring of the other outer coil layer of the outermost side forms a second end of the linear conductor, and the second end is located outside the other outermost first coil layer. A method for manufacturing a coil module, comprising: f. winding a linear conductor in a first winding direction to form a first inner ring; g. the linear conductor along an outer diameter of the first inner ring and Winding a first outer ring along the first winding direction, wherein the first inner ring and the first outer ring form a first coil layer; h. the linear conductor from one end of the first inner ring a second inner ring is wound in a second winding direction, wherein the first inner ring faces the second inner ring, and the first winding direction is opposite to the second winding direction; and i. the linear conductor Fitting an outer diameter of the second inner ring, and winding a second outer ring along the second winding direction, wherein the second inner ring and the second outer ring form a first one of the first coil layers Two coil layers. The method for manufacturing the coil module of claim 8, further comprising: j. determining a corner of the linear conductor; wherein the step f further comprises: f1. from the corner along the first Winding direction An inner ring; wherein the step h further comprises: h1. The second inner ring is wound from the second winding direction at the turning point. The method of manufacturing the coil module of claim 8, wherein the step g further comprises: g1. forming a first end from the first outer ring of the first coil layer, and the first end and the first end a coil layer is located in the same plane layer, wherein, after step i, further comprising: i1. the second outer ring from the second coil layer forms a second end, and the second end is in the same state as the second coil layer Plane layer. The method for manufacturing a coil module according to claim 8, further comprising: k. winding the linear conductor from one end of the first outer ring, and sequentially winding a third outer ring along the first winding direction And a third inner ring, wherein the third outer ring and the third inner ring form a third coil layer adjacent to one side of the first coil layer. The method of manufacturing the coil module of claim 11, wherein the step k further comprises: k1. forming a first end of the linear conductor from the third inner ring of the third coil layer, and the first The end is located outside the third coil layer; K2. forming a second end from the second outer ring of the second coil layer, and the second end is in the same plane layer as the second coil layer. The method for manufacturing a coil module according to claim 8, further comprising: l. winding the linear conductor from one end of the second outer ring, and sequentially winding a fourth outer ring along the second winding direction And a fourth inner ring, wherein the fourth outer ring and the fourth inner ring form a fourth coil layer adjacent to one side of the second coil layer. The method of manufacturing the coil module of claim 13, wherein the step 1 further comprises: m. forming a first end of the linear conductor from the first outer ring of the first coil layer, and the first The end is in the same plane layer as the first coil layer; and n. the fourth inner ring of the fourth coil layer forms a second end of the linear conductor, and the second end is the fourth coil layer outer. A coil module comprising a plurality of coil layers, each coil layer comprising: an outer ring; and an inner ring wound along an inner diameter of the outer ring; wherein a portion of the inner layer of the coil layer One end is connected to one end of the inner ring of the adjacent coil layer; wherein the coil module further comprises a first end, from the outermost side The outer ring of the coil layer extends out, and the first end is located in the same plane layer as the outermost layer of the coil. The coil module of claim 15, wherein the number of the coil layers is an even number. The coil module of claim 15, wherein the number of the coil layers is an odd number, and a portion of the outer circumference of the coil layer is connected to one end of the outer ring of the adjacent coil layer. The coil module of claim 15, wherein the first end extends from the inner ring of the outermost coil layer, and the first end is located outside the outermost coil layer. The coil module of claim 15 further comprising a second end extending from the outermost outer coil layer and the second end being in the same planar layer as the outermost coil layer. The coil module of claim 15 further comprising a second end extending from the outermost outer coil layer and the second end being located outside the outermost coil layer. The coil module of claim 15, wherein the wires of the coil layers comprise a conductive metal, and the wire diameters of the coil layers are Between 0.0001 mm and 5 mm. The coil module of claim 15 wherein the wires of the coil layers are capable of transmitting a current of about 40 amps. A magnetic component comprising: the coil module of any one of claims 15 to 22; and an iron core disposed in the inner ring of each of the coil layers.