CN101373658A - Conductive winding structure and transformer using same - Google Patents

Abstract

An electrically conductive winding structure for use in a magnetic assembly, the electrically conductive winding structure comprising at least: the conductive unit comprises a main body, a first end part and a second end part, wherein the main body is respectively connected with the first end part and the second end part and is provided with a hollow hole; and at least one connecting part which is provided with a first side end and a second side end and is used for connecting any two adjacent conductive units. The first side end of the connecting part and the first end part of one of the conductive units form a first connecting part, the second side end of the connecting part and the second end part of the adjacent conductive unit form a second connecting part, the conductive units and the connecting part are folded at the first connecting part and the second connecting part, so that the conductive units are arranged opposite to each other, and the hollow holes of the conductive units correspondingly form a through channel.

Description

Conductive winding structure and transformer using the conductive winding structure

technical field

The invention relates to a conductive winding structure and a transformer using the conductive winding structure, in particular to a multi-turn continuous conductive winding structure and a transformer using the conductive winding structure.

Background technique

A transformer is an electronic component that is often used in various electronic devices to adjust different voltages so that it can reach the applicable range of the power receiving device. Please refer to FIG. 1 , which is a schematic structural diagram of a conventional transformer disclosed in US Pat. No. 7,091,817. As shown in FIG. 1 , a conventional transformer 1 includes a winding frame 10 , a primary winding (not shown), a plurality of conductive sheets 12 and a core set 13 . The bobbin frame 10 has a frame-shaped surface 101, which is perpendicular to and connected to two wall-like structures 102, 103. The wall-like structures 102, 103 are parallel to each other and form a winding slot 104 for winding primary windings. Two sides of the wall structures 102 , 103 extend the flaps 105 and 106 to form two side guide grooves 107 for accommodating the corresponding conductive sheets 12 . The magnetic core set 13 is composed of a first magnetic core part 131 and a second magnetic core part 132 . In addition, the conductive sheet 12 is made of copper sheet to serve as the secondary winding of the transformer 1 . The conductive sheet 12 has a single-loop structure, and one side of the conductive sheet 12 has an opening 121, which makes it generally have a "ㄇ"-shaped structure, so that the conductive sheet 12 can be inserted into the guide groove 107 by using the opening 121 to be inserted into the And fixed in the winding frame 10, and directly connected with the system circuit board.

Although using a single-turn conductive piece 12 as the secondary winding can effectively reduce the volume of the transformer 1, when the conductive piece 12 is respectively arranged in the guide groove 107 of the winding frame 10, it will still cause inconvenience and time-consuming assembly. question. In addition, the conductive strips 12 arranged in different guide grooves 107 still need to be connected by other media, such as using lines on the system circuit board or using conductive rods to connect these conductive strips 12. In this way, not only The loss is increased, and the components of the transformer are increased or the circuit design of the system circuit board is complicated, and it is difficult to assemble.

Therefore, how to develop a conductive winding structure that can improve the defects of the prior art and a transformer structure using the conductive winding structure is an urgent problem to be solved at present.

Contents of the invention

The main purpose of the present invention is to provide a conductive winding structure and a transformer structure using the conductive winding structure. The conductive winding structure can be wound in multiple turns without a continuous line, thereby reducing loss, reducing transformer volume, simplifying transformer structure and shortening time. Assembly time.

Another object of the present invention is to provide a conductive winding structure, which can provide an extension portion for fixing the electronic components, so as to facilitate the heat dissipation of the electronic components and increase the available space.

To achieve the above object, a broad embodiment of the present invention provides a conductive winding structure, which is applied in a magnetic assembly, the conductive winding structure at least includes: a plurality of conductive units, each conductive unit has a main body, a first An end portion and a second end portion, the main body is respectively connected to the first end portion and the second end portion, and has a hollow hole; and at least one connection portion has a first side end and a second side end, and the connection portion is used for Connect any two adjacent conductive elements. Wherein, the first side end of the connection part forms a first connection with the first end of one of the plurality of conductive units, and the second side end of the connection part forms a second connection with the second end of the adjacent conductive unit. At the connection part, the plurality of conductive units and the connection part are folded at the first connection part and the second connection part, so that the plurality of conductive units are arranged opposite to each other, and the plurality of hollow holes of the plurality of conductive units correspondingly form through passages.

To achieve the aforementioned objective, another broad embodiment of the present invention provides a transformer, which at least includes: a winding structure, a conductive winding structure and a magnetic core assembly. Wherein, the conductive winding structure at least includes: a plurality of conductive units, each conductive unit has a main body, a first end and a second end, the main body is respectively connected to the first end and the second end, and has a hollow hole and at least one connecting portion having a first side end and a second side end, and the connecting portion is used to connect any two adjacent conductive units. Wherein, the first side end of the connection part forms a first connection with the first end of one of the plurality of conductive units, and the second side end of the connection part forms a second connection with the second end of the adjacent conductive unit. At the connection part, the plurality of conductive units and the connection part are folded at the first connection part and the second connection part, so that the plurality of conductive units are arranged opposite to each other, and the plurality of hollow holes of the plurality of conductive units correspondingly form through passages. In addition, the magnetic core group is at least partially passed through the through channel of the winding structure and the conductive winding structure.

To achieve the aforementioned purpose, another broad embodiment of the present invention provides a transformer, which at least includes: a circuit board, a conductive winding structure, and a magnetic core assembly. Wherein, the circuit board has primary windings and through holes. The conductive winding structure at least includes: a plurality of conductive units, each conductive unit has a main body, a first end and a second end, the main body is respectively connected to the first end and the second end, and has a hollow hole; and at least A connection portion has a first side end and a second side end, and the connection portion is used for connecting any two adjacent conductive units. Wherein, the first side end of the connection part forms a first connection with the first end of one of the plurality of conductive units, and the second side end of the connection part forms a second connection with the second end of the adjacent conductive unit. At the connection part, the plurality of conductive units and the connection part are folded at the first connection part and the second connection part, so that the plurality of conductive units are arranged opposite to each other, and the plurality of hollow holes of the plurality of conductive units correspondingly form through passages. In addition, the magnetic core group is at least partially disposed in the through hole of the circuit board and the through hole of the conductive winding structure.

The invention has the beneficial effects that: the conductive winding structure can be wound in multiple turns without continuous flow, thereby reducing loss, reducing transformer volume, simplifying transformer structure and shortening assembly time.

Description of drawings

FIG. 1 is a schematic structural diagram of a conventional transformer disclosed in US Pat. No. 7,091,817.

FIG. 2( a ) is a schematic diagram of the original pattern structure constituting the conductive winding structure of the first preferred embodiment of the present invention.

Fig. 2(b) is a schematic diagram of the section CC' of the conductive winding structure formed by folding the structure shown in Fig. 2(a).

FIG. 3( a ) is a schematic diagram of a prototype pattern structure constituting a conductive winding structure according to a second preferred embodiment of the present invention.

Fig. 3(b) is a schematic diagram of the folded structure shown in Fig. 3(a).

FIG. 4( a ) is a schematic diagram of a prototype pattern structure constituting a conductive winding structure according to a third preferred embodiment of the present invention.

Fig. 4(b) is a schematic diagram of the folded structure shown in Fig. 4(a).

Fig. 5 is a schematic diagram of a transformer structure using the conductive winding structure shown in Fig. 2(a) and Fig. 2(b).

FIG. 6 is a combined structural schematic diagram of the structure shown in FIG. 5 .

Fig. 7 is a schematic structural diagram of a transformer using the conductive winding structure shown in Fig. 3(b).

Fig. 8 is a structural schematic diagram of another modification example of the structure shown in Fig. 2(a).

FIG. 9 is a schematic structural diagram of a transformer using the folded conductive winding structure shown in FIG. 8 .

FIG. 10 is a combination diagram of the structure shown in FIG. 9 .

Wherein, the reference signs are explained as follows:

1, 2, 3, 4: Transformer 10: Winding frame

12: Conductive sheet 13, 23, 33, 34, 43: Magnetic core group

101: frame surface 102, 103: wall structure

104: Winding groove 105, 106: Folding piece

107: Guide groove 131, 231, 431: The first magnetic core component

132, 232, 432: Second magnetic core part 121, 2151: Opening

22, 32: Conductive winding structure 221, 321: Conductive unit

222, 322: Connection part 223, 323, 3262: Pin

2211, 211: main body 2212, 3212, 3222: first end

2213, 3213, 3223: second end 2214, 3214: hollow hole

2215: gap 216, 2223, 3216, 3263: first surface

2217, 2224: the second surface 2218, 3218: the first through channel

2221, 3221: first side end 222, 3222: second side end

224, 324: the first connection 225, 325: the second connection

326, 416: Extensions 3261: Holes

3264: Locking component 327: Second winding part

328: First winding part 329: Electronic components

3219: Through channel A, B: Folding direction

20, 30, 411: Main stage winding 21, 31: Winding base

213: The first through channel 214: Winding slot

215: Accommodating slot 2231: Free end

41: Circuit board 414: Power contact

44: Wire 412: Signal connection interface

415: Signal contact 413: Through hole

431a, 432a: shaft center part 433: recessed part

46, 47: Adhesive components

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the ensuing description. It should be understood that the invention may have various changes without departing from the scope of the invention, and that the description and illustrations therein are illustrative in nature of the invention rather than limiting the invention.

Please refer to FIG. 2( a ), which is a schematic diagram of the original pattern structure of the conductive winding structure constituting the first preferred embodiment of the present invention. As shown in the figure, the conductive winding structure 22 of the present invention is cut from a single metal conductive sheet, wherein the metal conductive sheet can be copper foil, but not limited thereto. The conductive winding structure 22 mainly includes a plurality of conductive units 221 , a plurality of connecting portions 222 and pins 223 . In this embodiment, the technology of the present invention will be described by taking a conductive winding structure 22 with three conductive units 221 as an example, wherein two adjacent conductive units 221 are connected by a connecting portion 222, and the first conductive The first end portion 2212 of the unit 221 and the second end portion 2213 of the last conductive unit 221 are respectively connected to a pin 223 through the connecting portion 222 or directly.

Each conductive unit 221 mainly includes a main body 2211 , a first end portion 2212 , a second end portion 2213 , a first surface 2216 and a second surface 2217 . In some embodiments, the main body 2211 can be generally circular, rectangular or polygonal (not shown) with a notch 2215 , but not limited thereto, and has a hollow hole 2214 in the center of the main body 2211 . In addition, the second surface 2217 of the conductive unit 221 is located on the back of the metal conductive sheet and is opposite to the first surface 2216 . In addition, the first surface 2216 of each conductive unit 221 is arranged facing the same direction, and the second surface 2217 is also arranged facing the same direction.

The connection portion 222 has a corresponding first side end 2221 and a second side end 2222, wherein the first side end 2221 is connected with the first end portion 2212 of the adjacent conductive unit 221 to form a first connection part 224, and the second side end 2221 The two side ends 2222 are connected to the second end portion 2213 of another adjacent conductive unit 221 to form a second connection 225 . In addition, the connecting portion 222 also has a first surface 2223 and a second surface 2224, and the first surface 2223 is in the same plane as the first surface 2216 of the conductive unit 221, and the second surface 2224 is in the same plane as the second surface of the conductive unit 221. 2217 is the same plane.

Please refer to FIG. 2( b ), which is a schematic diagram of the section CC′ of the conductive winding structure formed by folding the structure shown in FIG. 1( a ). As shown in FIG. 2(a) and FIG. 2(b), the conductive winding structure 22 can generally be folded at the first connection part 224 and the second connection part 225, and the first side end 2221 of the connection part 222 is folded toward the direction A. , so that the second surface 2224 of the connection part 222 is adjacent to the second surface 2217 of the conductive unit 221, and there may be an angle between them, and the second side end 2222 of the connection part 222 is folded toward the B direction, so that the connection part The first surface 2223 of the conductive unit 222 is adjacent to the first surface 2216 of the conductive unit 221, and there may be an included angle therebetween. After folding, the first surface 2216 of each conductive unit 221 is arranged in the same direction, that is, the X direction shown in FIG. The second surface 2217 of each conductive unit 221 is opposite to each other, and the hollow holes 2214 in the center of the main body 2211 of each conductive unit 221 are arranged corresponding to each other to form a first through passage 2218 . In addition, in some embodiments, since the metal conductive sheet has fixed hardness and ductility, after folding, there will be elasticity between each conductive unit 221 and there will be a gap, that is, as shown in FIG. 2( b ). distance h.

Please refer to FIG. 3( a ), which is a schematic diagram of the original pattern structure of the conductive winding structure constituting the second preferred embodiment of the present invention. As shown in the figure, the conductive winding structure 32 of this embodiment is also cut from a single metal conductive sheet, wherein the metal conductive sheet can be copper foil, but not limited thereto. The conductive winding structure 32 mainly includes a first winding portion 328 and at least one extension portion 326 , wherein the first winding portion 328 can serve as, for example, a secondary winding of a transformer. The first winding part 328 also includes a plurality of conductive units 321 and a plurality of connecting parts 322 , and two adjacent conductive units 321 are connected by a connecting part 322 . Since the structure, arrangement and folding manner of the conductive unit 321 and the connecting portion 322 of the first winding portion 328 are similar to those of the conductive unit 221 and the connecting portion 222 shown in the first embodiment, no further description is given.

In addition, an extension portion 326 extends from the first end portion 3222 of the first conductive unit 321 of the first winding portion 328 and the second end portion 3223 of the last conductive unit 321 respectively. In this embodiment, the extension portion 326 can be used for fixing electronic components, such as transistors, as a heat sink. In some embodiments, the extension part 326 has a plurality of holes 3261 and a plurality of pins 3262, so that the electronic components can be fixed on the extension part 326 by using the holes 3261 and a locking component, such as screws and nuts, to assist the electronic components. The components dissipate heat, and the pin 3262 is mainly used for plugging into a system circuit board (not shown).

In some embodiments, as shown in FIG. 3( a ), the conductive winding structure 32 may further include a second winding portion 327 , serving as a conductive winding of an inductor, for example. The second winding part 327 can be extended from the other end of the extension part 326 . The second winding part 327 also includes a plurality of conductive units 321 and a plurality of connecting parts 322 , and two adjacent conductive units 321 are connected by a connecting part 322 . Since the structure, arrangement and folding manner of the conductive unit 321 and the connecting portion 322 of the second winding portion 327 are similar to those of the conductive unit 221 and the connecting portion 222 shown in the first embodiment, no further description is given here. In this embodiment, the first conductive unit 321 in the second winding part 327 is connected to a pin 323 through a connecting part 322 for plugging into a system circuit board (not shown), and the last one The second end portion 3213 of the conductive unit 321 is connected to the extension portion 326 .

Please refer to FIG. 3( b ), which is a schematic diagram of the folded structure shown in FIG. 3( a ). As shown in Fig. 3(a) and Fig. 3(b), when each conductive unit 321 in the first winding part 328 and the second winding part 327 of the conductive winding structure 32 is connected to the first connection part 324 connected to the connecting part 322 And after the second connection part 325 is folded according to the method described in the first embodiment, the first surface 3216 of each conductive unit 321 will be arranged in the same direction as the first surface 3263 of the extension part 326, as shown in FIG. 3( b ) The Y direction shown, and the hollow holes 3214 in each conductive unit 321 of the first winding part 328 are arranged corresponding to each other to form a first through channel 3218, and in each conductive unit 321 of the second winding part 327 The inner hollow holes 3214 are also arranged corresponding to each other to form a second through channel 3219 .

Of course, the conductive winding structure of the present invention can also include a plurality of identical extension sections, that is, more conductive units 321 and connecting parts 322 are provided. Based on the same principle and structure, it is possible to realize a winding with more turns and no continuous wires. The three-dimensional conductive winding structure achieves the advantages of not needing to use other media to connect the turns and reducing the volume of the transformer. In addition, the outline of the conductive winding structure of the present invention is not limited to a ring shape, and may also be rectangular or polygonal, but not limited thereto.

Please refer to FIG. 4( a ), which is a schematic diagram of a prototype pattern structure constituting a conductive winding structure according to a third preferred embodiment of the present invention. As shown in the figure, the conductive winding structure 32 of this embodiment is also cut from a single metal conductive sheet, wherein the metal conductive sheet can be copper foil, but not limited thereto. The conductive winding structure 32 mainly includes a first winding part 328 , an extension part 326 and a pin 323 , wherein the first winding part 328 can be used as a secondary winding of a transformer, for example. The first winding part 328 also includes a plurality of conductive units 321 and a plurality of connecting parts 322 , and two adjacent conductive units 321 are connected by a connecting part 322 . Since the structure, arrangement and folding manner of the conductive unit 321 and the connecting portion 322 of the first winding portion 328 are similar to those of the conductive unit 221 and the connecting portion 222 shown in the first embodiment, no further description is given.

In addition, the first end portion 3212 of the first conductive unit 321 and the second end portion 3213 of the last conductive unit 321 of the first winding portion 328 are respectively connected to the pin 323 through the connection portion 322 and directly extend out of the extension portion 326 . In this embodiment, the extension portion 326 can be fixed by an electronic component (not shown) to serve as a heat dissipation plate. In some embodiments, the extension part 326 has a plurality of holes 3261 and a plurality of pins 3262, the holes 3261 can be locked with a locking component, such as a screw and a nut, so that the electronic components can be fixed on the extension part 326, The pins 3262 of the extension portion 326 are mainly used to plug in a system circuit board (not shown) to assist the electronic components in dissipating heat. In addition, the pin 323 is also used for plugging into a system circuit board.

Please refer to FIG. 4(b), which is a schematic diagram of the folded structure shown in FIG. 4(a). As shown in Figure 4(a) and Figure 4(b), when each conductive unit 321 in the first winding part 328 of the conductive winding structure 32 is connected to the connecting part 322, the first connection part 324 and the second connection part 325 After being folded according to the method described in the first embodiment, the first surface 3216 of each conductive unit 321 will be arranged in the same direction as the first surface 3263 of the extension part 326, such as the Z direction shown in FIG. 4( b ), and The hollow holes 3214 in each conductive unit 321 of the first winding portion 328 are arranged corresponding to each other to form a first through passage 3218 .

Please refer to FIG. 5 , which is a schematic diagram of a transformer using the conductive winding structure shown in FIG. 2( a ) and FIG. 2( b ). As shown in the figure, the transformer 2 mainly includes a winding structure, a winding base 21 , a conductive winding structure 22 and a magnetic core set 23 . In this embodiment, the winding structure may be the primary winding 20, and the conductive winding structure 22 may be the secondary winding, but not limited thereto. The winding base 21 has a main body 211 , a first through passage 213 , a plurality of winding slots 214 and a plurality of accommodating slots 215 . The main body 211 has a first through channel 213 mainly used for accommodating part of the magnetic core set 23 and communicating with the accommodating groove 215 . A plurality of winding slots 214 are used for winding the primary winding 20 . The plurality of hollow accommodating slots 215 have an opening 2151 substantially larger than the diameter of the main body 2211 of the conductive unit 221 of the conductive winding structure 22, such as a semicircular opening, so that the main body 2211 of the conductive unit 221 can be inserted and accommodated through the opening 2151. Inside the groove 215 . In this embodiment, the main body 2211 of the first conductive unit 221 and the last conductive unit 221 can be disposed on two sides of the winding base 21 , but not limited thereto. The distance h of the gap in the conductive winding structure 22 (as shown in FIG. 2( b )) is substantially equal to or greater than the width of each winding slot 214, and the accommodating slot 215 is a channel that can communicate with the first through channel 213 The hollow structure, so when the main body 2211 of the conductive unit 221 of the conductive winding structure 22 is placed in the accommodating groove 215, the hollow hole 2214 on the main body 2211 and the first through channel 213 on the winding base 21 can be mutually connected. correspond and connect.

FIG. 6 is a combined structural schematic diagram of the structure shown in FIG. 5 . As shown in FIG. 5 and FIG. 6 , the magnetic core set 23 can be, for example, an EE type iron core, and has a first magnetic core portion 231 and a second magnetic core portion 232 . The diameter of the hollow hole 2214 of the conductive unit 221 in the conductive winding structure 22 is substantially the same as the diameter of the first through passage 213 of the winding base 21, so when the main body 2211 of the conductive unit 221 of the conductive winding structure 22 passes through the opening When 2151 is inserted into the accommodating groove 215 of the winding base 21, the hollow hole 2214 of the main body 2211 of the conductive unit 221 in the conductive winding structure 22 will communicate with the first through passage 213 on the winding base 21, so The first magnetic core part 231 and the second magnetic core part 232 of the magnetic core group 23 can pass through the first through passage 213 of the winding base 21 and the hollow hole 2214 of the conductive unit 221 in order to assemble the transformer 2 , so that the conductive winding structure 22 as the secondary winding and the primary winding 20 generate an induced voltage by electromagnetic induction, so as to achieve the purpose of voltage conversion. In addition, since the pins 223 can extend outward from one side of the magnetic core assembly 23 after assembly, the transformer 2 can be connected to a connection point on a system circuit board (not shown) through the pins 223 .

The present invention uses a three-dimensional conductive winding structure 22 folded from a single metal plate, which can be applied to magnetic components, such as transformers, to provide multiple turns of continuous conductive windings, so there is no need to use other media, such as conductive rods, to connect each coils, so that the transformer using the continuous conductive winding structure of the present invention has the advantages of fewer components and easy assembly.

Please refer to FIG. 7 again, which is a structural diagram of a transformer using the conductive winding structure shown in FIG. 3( b ). As shown in the figure, the transformer 3 mainly includes a winding structure, a winding base 31 , a conductive winding structure 32 , a first magnetic core set 33 and a second magnetic core set 34 . In this embodiment, the winding structure can be the primary winding 30, and the first winding part 328 of the conductive winding structure 32 is used as the secondary side winding of the transformer 3, but it is not limited thereto. The second winding part 327 acts as the conductive winding of the inductance component. Because the structure and assembly method of the first winding part 328 of the conductive winding structure 32, the winding base 31, the primary winding 30, and the first magnetic core group 33 in this embodiment are the same as those of the embodiment described in Fig. 5 and Fig. 6 are similar, so I won't repeat them here.

In this embodiment, the two extensions 326 can be arranged correspondingly, and the electronic component 329, such as a transistor, can be fixed on the extension 326 by using the hole 3261 and the locking component 3264, such as a screw and a nut, to be locked. The extension part 326 assists the electronic component 329 in dissipating heat and can increase the space utilized. The plurality of pins 3262 of the extension portion 326 can be inserted into a system circuit board (not shown). In addition, the second through channel 3219 of the second winding portion 327 can pass through part of the second magnetic core set 34 to form an inductor component. In addition, the pins 323 of the second winding portion 327 can be plugged into a system circuit board (not shown).

Please refer to FIG. 8 , which is a structural schematic diagram of another modification example of the structure shown in FIG. 2( a ). In this embodiment, the structure, connection method and folding method of the conductive unit 221 and the connecting portion 222 of the conductive winding structure 22 are the same as those of the previous embodiments, the only difference is that the free end portion 2231 of the pin 223 faces the connecting portion 222 extend in opposite directions. Please refer to FIG. 9 and FIG. 10 , which are respectively a structural schematic diagram and an assembly diagram of a transformer using the folded conductive winding structure shown in FIG. 8 . As shown in FIGS. 9 and 10 , the transformer 4 mainly includes a circuit board 41 , at least one conductive winding structure 22 and a magnetic core set 43 . Wherein, a primary winding 411 is buried inside the circuit board 41 , and the primary winding 411 is connected to a power contact 414 , so that the electric wire 44 connected to the power contact 414 can be used to provide power input. In addition, the circuit board 41 has a signal connection interface 412, and the signal connection interface 412 is, for example, a golden finger interface, but not limited thereto. The signal connection interface 412 is connected to the signal contact 415 on the circuit board 41, and the signal connection interface 412 can be inserted into the corresponding slot of the system circuit board (not shown), so that the signal connected to the signal contact 415 can be used. The control signal provided by the line 45 communicates with the control circuit (not shown) of the system circuit board through the signal connection interface 412 . The circuit board 41 also includes a through hole 413 and an extension portion 416 , an end region of the extension portion 416 is provided with a power contact 414 and a signal contact 415 , so that the extension portion 416 can be used to provide a required electrical safety distance.

Please refer to FIG. 9 and FIG. 10 again, the first through channel 2218 formed by the hollow hole 2214 of the conductive unit 221 of the conductive winding structure 22 can be opposite to the through hole 413 of the circuit board 41, and the pin 223 of the conductive winding structure 22 parallel extension. The magnetic core set 43 includes a first magnetic core part 431 and a second magnetic core part 432 , wherein the first magnetic core part 431 and the second magnetic core part 432 can be, for example, EE type magnetic core parts. The core parts 431a, 432a of the first magnetic core part 431 and the second magnetic core part 432 of the magnetic core group 43 at least partially pass through the first through passage 2218 of the conductive winding structure 22 and the through hole 413 of the circuit board 41, so as to be able to cooperate The power flowing through the primary winding 411 of the circuit board 41 utilizes electromagnetic induction to generate an induced voltage in the conductive winding structure 22 as the secondary winding, thereby achieving the purpose of voltage conversion. In some embodiments, the magnetic core set 43 has a concave portion 433 , and the extension portion 416 of the circuit board 41 can extend out of the magnetic core set 43 from the concave portion 423 , thereby providing a sufficient electrical safety distance.

In addition, in order to make the assembly of the transformer 4 stable, an adhesive component 46 , such as glue, can also be selectively formed between the inner surfaces of the first magnetic core part 431 and the second magnetic core part 432 and the conductive winding structure 22 . Of course, an adhesive component 47 , such as glue, can also be formed between the circuit board 41 and the conductive winding structure 22 . By using the adhesive components 46, 47, the assembly of the transformer 4 can be made more stable.

To sum up, the present invention provides a conductive winding structure and a transformer structure using the conductive winding structure. The conductive winding structure can be used as the secondary winding of the transformer, and can be wound continuously without using other media. The turns are connected to reduce losses and reduce the size of the transformer. In addition, the transformer structure of the present invention has a multi-turn three-dimensional conductive winding structure, which can simplify the assembly structure, make the assembly of the transformer easier and save assembly time. In addition, the conductive winding structure of the present invention can also provide extensions for fixing the electronic components, thereby facilitating the heat dissipation of the electronic components and increasing the space used.

Various modifications and variations of the present invention will occur to those skilled in the art, all without departing from the scope of the present invention as defined in the appended claims.

Claims (19)

1. A conductive winding structure applied in a magnetic assembly, the conductive winding structure at least comprising: A plurality of conductive units, each of which has a main body, a first end, and a second end, the main body is respectively connected to the first end and the second end, and has a hollow hole; and At least one connection portion has a first side end and a second side end, and the connection portion is used to connect any two adjacent conductive units; Wherein, the first side end of the connection part forms a first connection with the first end part of one of the plurality of conductive units, and the second side end of the connection part forms a first connection with the adjacent conductive unit. The second end of the second end forms a second connection, the plurality of conductive units and the connection part are folded by the first connection and the second connection, so that the plurality of conductive units are arranged opposite to each other, and the plurality of conductive units The plurality of hollow holes of each conductive unit correspondingly form a through channel. 2. The conductive winding structure of claim 1, wherein the magnetic component is a transformer. 3. The conductive winding structure as claimed in claim 1, wherein the conductive winding structure is made by cutting a single metal conductive sheet, and the metal conductive sheet is formed of copper foil. 4. The conductive winding structure as claimed in claim 1, wherein the main body is substantially annular, rectangular or polygonal with notches. 5. The conductive winding structure according to claim 1, wherein the conductive unit has a first surface and a second surface, and the first surface and the second surface of the plurality of conductive units are respectively arranged in the same direction, And the plurality of conductive units and the connecting portion are folded at the first connection point and the second connection point, so that the first surface of the conductive unit is arranged correspondingly to the second surface of the adjacent conductive unit. 6. The conductive winding structure as claimed in claim 1, further comprising at least one pin connected to one of the plurality of conductive units. 7. The conductive winding structure as claimed in claim 1, further comprising at least one extension part, one end of the extension part is connected to one of the plurality of conductive units, so as to provide an electronic component for heat dissipation. 8. The conductive winding structure as claimed in claim 7, wherein the extension part has at least one pin. 9 . The conductive winding structure as claimed in claim 7 , wherein the plurality of conductive units and the connecting portion constitute a first winding portion, and the end of the extension portion is connected to the first winding portion. 10 . The conductive winding structure according to claim 9 , further comprising a second winding part connected to the other end of the extension part, and the second winding part is composed of a plurality of conductive units and at least one connecting part. 11 . 11. The conductive winding structure of claim 10, wherein the first winding part is a secondary winding of a transformer, and the second winding part is a conductive winding of an inductor. 12. A transformer comprising at least: a winding structure; A conductive winding structure comprising at least: A plurality of conductive units, each of which has a main body, a first end, and a second end, the main body is respectively connected to the first end and the second end, and has a hollow hole; and At least one connection portion has a first side end and a second side end, and the connection portion is used to connect any two adjacent conductive units; Wherein, the first side end of the connection part forms a first connection with the first end part of one of the plurality of conductive units, and the second side end of the connection part forms a first connection with the adjacent conductive unit. The second end of the second end forms a second connection, the plurality of conductive units and the connection part are folded by the first connection and the second connection, so that the plurality of conductive units are arranged opposite to each other, and the plurality of conductive units The plurality of hollow holes of a conductive unit correspondingly form a through channel; and A magnetic core group is at least partially passed through the winding structure and the through channel of the conductive winding structure. 13. The transformer of claim 12, further comprising a winding base comprising: a body having a through passage; an accommodating groove, disposed on the main body, for placing the main body of the conductive unit of the conductive winding structure; and A wire winding groove is arranged on the main body for winding the wire winding structure. 14. The transformer as claimed in claim 13, wherein the accommodating groove has an opening substantially larger in diameter than the main body of the conductive unit, so that the main body of the conductive unit is inserted into the accommodating groove through the opening . 15. The transformer as claimed in claim 14, wherein the magnetic core group comprises a first magnetic core part and a second magnetic core part, and the axial core parts of the first magnetic core part and the second magnetic core part at least partly pass through the The through channel of the winding base and the through channel of the conductive winding structure. 16. A transformer comprising at least: a circuit board having a primary winding and a through hole; A conductive winding structure comprising at least: A plurality of conductive units, each of which has a main body, a first end, and a second end, the main body is respectively connected to the first end and the second end, and has a hollow hole; and At least one connection portion has a first side end and a second side end, and the connection portion is used to connect any two adjacent conductive units; Wherein, the first side end of the connection part forms a first connection with the first end part of one of the plurality of conductive units, and the second side end of the connection part forms a first connection with the adjacent conductive unit. The second end of the second end forms a second connection, the plurality of conductive units and the connection part are folded by the first connection and the second connection, so that the plurality of conductive units are arranged opposite to each other, and the plurality of conductive units The plurality of hollow holes of a conductive unit correspondingly form a through channel; and A magnetic core group is at least partially disposed in the through hole of the circuit board and the through hole of the conductive winding structure. 17. The transformer of claim 16, wherein the circuit board further comprises: a power contact connected to the primary winding; a signal connection interface, the signal connection interface is a golden finger interface; and A signal contact, the signal contact is connected with the signal connection interface. 18. The transformer according to claim 17, wherein the circuit board further has an extension, an end region of the extension is provided with the power contact and the signal contact, and the magnetic core group has a recess, the circuit board The extension part extends out of the magnetic core group from the concave part. 19. The transformer as claimed in claim 16, wherein the magnetic core group comprises a first magnetic core part and a second magnetic core part, the core parts of the first magnetic core part and the second magnetic core part of the magnetic core group are at least partially passing through the through channel of the conductive winding structure and the through hole of the circuit board.

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