CN113808813A

CN113808813A - A transformer mounted on a circuit board

Info

Publication number: CN113808813A
Application number: CN202111228048.4A
Authority: CN
Inventors: 杨东平; 余刚; 罗志鹏; 姜岳辉
Original assignee: Shenzhen Dongzhun Electronic Technology Co ltd
Current assignee: Shenzhen Dongzhun Electronic Technology Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2021-12-17

Abstract

The invention discloses a transformer assembled on a circuit board, which comprises a PCB (printed circuit board) and a transformer magnetic core, wherein secondary windings of the transformer are arranged on the upper end surface and the lower end surface of the PCB, the secondary windings of the transformer are connected and led out through copper foils on the PCB, a primary side skeleton coil of the transformer is inserted into the upper end surface of the PCB, and the transformer magnetic core penetrates through the PCB and the primary side skeleton coil of the transformer to form a complete transformer. Compared with the prior art, the invention has the advantages that: the secondary winding of the transformer does not need to be installed by a framework, the transformer magnetic core can sink deeper, and the height of a welding point of a welding surface of a PCB (printed circuit board) is utilized, so that the height of a power supply is lower, and the existing technical requirement is met.

Description

Transformer assembled on circuit board

Technical Field

The invention relates to the technical field of transformers, in particular to a transformer assembled on a circuit board.

Background

When the power supply is required to be thinner and thinner, the height of the transformer is a serious problem, the secondary coil winding of the existing transformer structure needs to be installed through a framework, so that the height of the magnetic core of the transformer extends upwards more, the height of the whole power supply is increased, and the production requirement on the thinner power supply cannot be met.

Disclosure of Invention

The invention aims to overcome the technical defects and provides a transformer assembled on a circuit board, wherein a secondary winding of the transformer does not need to be installed in a framework, a magnetic core of the transformer can sink deeper, and the height of a welding point of a welding surface of a PCB is utilized to enable the height of a power supply to be lower, so that the prior technical requirements are met.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a transformer assembled on a circuit board comprises a PCB and a transformer magnetic core, wherein secondary transformer windings are arranged on the upper end face and the lower end face of the PCB and are connected and led out through copper foils on the PCB, a primary transformer side skeleton coil is inserted into the upper end face of the PCB, and the transformer magnetic core penetrates through the PCB and the primary transformer side skeleton coil to form a complete transformer.

Preferably, the secondary winding of the transformer is connected with the PCB in a welding mode.

Preferably, the upper end face of the PCB is an element face, and the lower end face of the PCB is a welding face.

Compared with the prior art, the invention has the advantages that: the secondary winding of the transformer is arranged on the front side and the back side of the PCB, so that the framework installation is not needed, the transformer magnetic core can sink deeper, the height of a welding point of a welding surface of the PCB is utilized, the height of a power supply is lower, and the existing technical requirements are met.

Drawings

Fig. 1 is a schematic diagram of a transformer mounted on a circuit board according to the present invention.

As shown in the figure: 1. a PCB board; 2. a secondary winding of the transformer; 3. a primary side skeleton coil of the transformer; 4. a transformer core.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A transformer assembled on a circuit board comprises a PCB (printed circuit board) 1 and a transformer magnetic core 4, secondary transformer windings 2 are arranged on the upper end face and the lower end face of the PCB 1, the secondary transformer windings 2 are connected and led out through copper foils on the PCB 1, a primary transformer side skeleton coil 3 is inserted into the upper end face of the PCB 1, and the transformer magnetic core 4 penetrates through the PCB 1 and the primary transformer side skeleton coil 3 to form a complete transformer.

And the secondary winding 2 of the transformer is connected with the PCB 1 in a welding manner.

The upper end face of the PCB 1 is an element face, and the lower end face of the PCB is a welding face.

When the transformer is specifically implemented, the secondary winding of the transformer is arranged on the front side and the back side of the PCB, the welding surface of the PCB is provided with one turn of coil, the component surface of the PCB is provided with one turn of coil, the two coils are connected and led out through copper foil on the PCB, so that the framework installation is not needed, the magnetic core of the transformer can sink deeper, the height of a welding point of the welding surface of the PCB is utilized, the height of a power supply is lower, and the existing technical requirements are met.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A transformer assembled on a circuit board is characterized in that: comprising a PCB board (1) and a transformer magnetic core (4), and the upper and lower ends of the PCB board (1) are provided with transformer secondary windings (2). ), the transformer secondary winding (2) is connected and drawn out through the copper foil on the PCB board (1), and the upper end surface of the PCB board (1) is plugged with the transformer primary skeleton wire package (3), so The transformer magnetic core (4) passes through the PCB board (1) and the transformer primary bobbin wire package (3) to form a complete transformer.

2 . A transformer mounted on a circuit board according to claim 1 , wherein the transformer secondary winding ( 2 ) and the PCB board ( 1 ) are connected by welding. 3 .

3. A transformer mounted on a circuit board according to claim 1, characterized in that: the upper end surface of the PCB board (1) is a component surface, and the lower end surface is a welding surface.