CN-122025346-A - Transformer structure

Abstract

The invention relates to a transformer structure which is arranged on a circuit board, wherein the circuit board is provided with an opening, and the transformer structure comprises a frame unit, a coil unit, an iron core unit and at least one U-shaped conductive piece. The frame unit is arranged on the circuit board, wherein the frame unit is provided with an accommodating space for accommodating the coil unit and the iron core unit, and at least a part of the accommodating space is positioned in the opening. The conductive member is disposed on the frame unit and electrically connects the coil unit and the circuit board.

Inventors

• FANG RONGZHAN
• ZHANG SHAODONG
• LI MINGCHENG

Assignees

• 台达电子工业股份有限公司

Dates

Publication Date

20260512

Application Date

20241112

Claims (10)

1. 1. A transformer structure disposed on a circuit board, wherein the circuit board has an opening, the transformer structure comprising: the frame unit is arranged on the circuit board, wherein the frame unit is provided with an accommodating space, and at least a part of the accommodating space is positioned in the opening; a coil unit disposed in the accommodating space, wherein at least a portion of the coil unit is disposed in the opening; An iron core unit disposed in the accommodating space and passing through the coil unit, wherein at least a portion of the iron core unit is disposed in the opening At least one conductive piece is arranged on the frame unit and is electrically connected with the coil unit and the circuit board.
2. 2. The transformer structure of claim 1, wherein the conductive member has a first end and a second end, the first end is electrically connected to the coil unit, the second end is electrically connected to the circuit board, and the first end is located in the opening and the second end is located outside the opening when viewed along a central axis direction of the core unit.
3. 3. The transformer structure of claim 2, wherein the first end is located higher in the central axis direction than the second end.
4. 4. The transformer structure of claim 2, wherein the second end passes through the circuit board.
5. 5. The transformer structure of claim 2, wherein the second end is connected to the circuit board by way of surface mount technology.
6. 6. The transformer structure of claim 2, further comprising a plurality of conductive members, and the frame unit has a first bracket and a second bracket, wherein the plurality of conductive members are disposed on the first bracket and the second bracket, respectively.
7. 7. The transformer structure of claim 6, wherein the frame unit further has two connection portions connecting the first bracket and the second bracket, and the first bracket, the second bracket and the plurality of connection portions surround the accommodating space.
8. 8. The transformer structure of claim 7, wherein the receiving space has a cross shape.
9. 9. The transformer structure of claim 6, wherein the first bracket and the second bracket are spaced apart from each other by a distance.
10. 10. The transformer structure of claim 2, wherein the coil unit comprises a plurality of circuit board coils, flat copper wires, enamel wires, or a combination thereof arranged along the central axis direction.

Description

Transformer structure Technical Field The invention relates to a transformer structure. More particularly, the present invention relates to a transformer structure having a frame unit. Background With the progress of electronic materials and process technologies, the transformer structure has gradually advanced toward thinning and lightening. However, since the conventional transformer structure is mostly stacked on a circuit board along the vertical direction, how to reduce the thickness dimension of the transformer structure and the circuit board along the vertical direction has become an important challenge for the research and development of the present invention. Disclosure of Invention In view of the foregoing conventional problems, an embodiment of the present invention provides a transformer structure disposed on a circuit board, wherein the circuit board has an opening, and the transformer structure includes a frame unit, a coil unit, an iron core unit, and at least one conductive member having a shape of a "n". The frame unit is arranged on the circuit board, wherein the frame unit is provided with an accommodating space, and at least a part of the accommodating space is positioned in the opening. The coil unit is arranged in the accommodating space, wherein at least a part of the coil unit is positioned in the opening. The iron core unit is arranged in the accommodating space and penetrates through the coil unit, wherein at least part of the iron core unit is positioned in the opening. The U-shaped conductive piece is arranged on the frame unit and is electrically connected with the coil unit and the circuit board. In an embodiment, the conductive member has a first end and a second end, the first end is electrically connected to the coil unit, the second end is electrically connected to the circuit board, and the first end is located in the opening and the second end is located outside the opening when viewed along a central axis direction of the core unit. In an embodiment, the position of the first end in the central axis direction is higher than the position of the second end in the central axis direction. In an embodiment, the second end passes through the circuit board. In an embodiment, the second end is connected to the circuit board by a surface mount technology. In an embodiment, the transformer structure further includes a plurality of conductive members, and the frame unit has a first bracket and a second bracket, wherein the conductive members are respectively disposed on the first bracket and the second bracket. In an embodiment, the frame unit further has two connection portions connected to the first bracket and the second bracket, and the first bracket, the second bracket and the connection portions surround the accommodating space. In an embodiment, the accommodating space is cross-shaped. In an embodiment, the first support and the second support are spaced apart from each other by a distance. In an embodiment, the coil unit includes a plurality of circuit board coils, flat copper wires, enameled wires, or a combination thereof, which are arranged along the central axis direction. Drawings Fig. 1 shows an exploded view of a transformer structure 100 and a circuit board B prior to being combined in accordance with an embodiment of the present invention. Fig. 2 shows an exploded view of the transformer structure 100 of fig. 1 and a circuit board B from another perspective before they are combined. Fig. 3 is a perspective view showing the transformer structure 100 and the circuit board B in fig. 1 and 2 after being combined. Fig. 4 shows another perspective view of the transformer structure 100 and the circuit board B of fig. 1 and 2 after being combined. Fig. 5 shows a perspective view of the frame unit F of the transformer structure 100. Fig. 6 is a cross-sectional view of the transformer structure 100 and the circuit board B shown in fig. 1 to 4 after being combined. Fig. 7 shows another cross-sectional view of the transformer structure 100 and the circuit board B of fig. 1-4 after being combined. Fig. 8 is a perspective view showing a transformer structure 200 and a circuit board B according to another embodiment of the present invention. Fig. 9 shows an exploded view of a transformer structure 300 and a circuit board B before being combined in accordance with another embodiment of the present invention. Fig. 10 shows a side view of the transformer structure 300 and the circuit board B after being combined. Description of the reference numerals 100, Transformer structure, 200 Transformer structure, 300 A transformer structure, A is a central shaft, B is a circuit board, B0 is an open pore, A coil unit, F is a frame unit, F0 is a containing space, F1 is a first bracket, F2 is a second bracket, F3 is a connecting part, M is an iron core unit, M1 is an upper iron core, M2 is a lower iron core, P is a conductive member, P1 is a first end, And P2, the second end. Detailed Descripti