Asymmetric magnetic integrated structure planar transformer

Abstract

The utility model relates to the technical field of electronic components, and discloses an asymmetric magnetic integrated structure planar transformer, which is characterized by comprising an upper cover core, a lower cover core, a plurality of insulating sheets, an input side winding, an output side winding and a resonant inductor, the resonant inductor, the insulating sheet, the input side winding and the output side winding are sequentially installed in the middle of the upper cover core and the lower cover core, and the problems that in the prior art, due to the fact that the space of power equipment is limited, discrete components are difficult to assemble, the requirement of compact design cannot be met, the size of used independent components is large, and the cost is low are solved. And flat design cannot be realized by a simple physical magnetic integration mode, so that the optimization of the product in the height direction is limited.

Description

Technical Field

[0001] The utility model patent relates to the technical field of electronic components, and specifically, to an asymmetric magnetic integrated structure planar transformer. Background Art

[0002] A Chinese patent with publication number CN218585776U discloses a planar transformer, which belongs to the field of transformer technology, wherein the planar transformer includes a winding, a magnetic core assembly and a plurality of pins, the winding includes a plurality of stacked and mutually insulated ceramic circuit boards, a through hole is provided in the middle portion of the ceramic circuit board, and a plurality of connection holes are provided on the ceramic circuit board; the magnetic core assembly includes a first magnetic core and a second magnetic core arranged oppositely on both sides of the winding, a magnetic core center column is provided between the first magnetic core and the second magnetic core, and the magnetic core center column is passed through the through hole; the pins are connected to the connection holes one by one, and all the connection holes connected to the same pin are coaxially arranged.

[0003] However, in the prior art, due to the limited space of the power supply equipment, discrete components are difficult to assemble and cannot meet the needs of compact design. The independent components used are large in size, and the simple physical magnetic integration method cannot achieve a flat design, which limits the optimization of the product in the height direction. Utility Model Content

[0004] The purpose of the utility model is to provide an asymmetric magnetic integrated structure planar transformer, aiming to solve the problem in the prior art that due to the limited space of the power supply equipment, discrete components are difficult to assemble, the requirements of compact design cannot be met, the independent components used are large in size, and the simple physical magnetic integration method cannot achieve flat design, which limits the optimization of the product in the height direction.

[0005] The utility model is implemented as follows: an asymmetric magnetic integrated structure planar transformer includes an upper cover core, a lower cover core, a plurality of insulating sheets, an input side winding, an output side winding and a resonant inductor. The upper cover core and the lower cover core are asymmetrically designed, and the resonant inductor, the insulating sheet, the input side winding and the output side winding are sequentially installed in the middle of the upper cover core and the lower cover core.

[0006] The plurality of insulating sheets, input-side windings and output-side windings are distributed alternately.

[0007] The upper cover core and the lower cover core are both provided with a first magnetic column and a second magnetic column, the resonant inductor is wound on the second magnetic column, and the insulating sheet, the input side winding and the output side winding are installed on the first magnetic column.

[0008] A mutual inductor is assembled on the top of the resonant inductor.

[0009] The device also includes a pin, which is connected to the transformer.

[0010] The cover plate is installed on one side of the lower cover core.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The asymmetric design optimizes the magnetic circuit layout, which may improve the electromagnetic performance and space utilization of the transformer. Sequential installation ensures precise alignment between components, improves assembly efficiency and electromagnetic compatibility. The staggered distribution improves space utilization, reduces electromagnetic interference, and optimizes signal stability. The design of two magnetic columns helps to effectively distribute the magnetic flux, reduce magnetic resistance, and improve the efficiency and power density of the transformer. Direct winding on the second magnetic column concentrates the magnetic flux, reduces leakage flux, and improves resonance efficiency. Installing these components on the first magnetic column simplifies the assembly process, maintains electrical isolation, and enhances safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an asymmetric magnetic integrated structure planar transformer of the utility model;

[0014] Figure 2 The utility model is a magnetic circuit schematic diagram of an asymmetric magnetic integrated structure planar transformer.

[0015] Reference numerals:

[0016] Cover plate 1; lower cover core 2; resonant inductor 3; pin 4; input side winding 5; mutual inductor 6; insulating sheet 7; upper cover core 8; first magnetic column 9; second magnetic column 10; output side winding 11. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0019] like Figure 1-2 As shown, the utility model provides an asymmetric magnetic integrated structure planar transformer, including an upper cover core 8, a lower cover core 2, a plurality of insulating sheets 7, an input side winding 5, an output side winding 11 and a resonant inductor 3, wherein the upper cover core 8 and the lower cover core 2 are asymmetrically designed, and the resonant inductor 3, the insulating sheet, the input side winding 5 and the output side winding 11 are sequentially installed in the middle of the upper cover core 8 and the lower cover core 2.

[0020] The asymmetric design optimizes the magnetic circuit layout, which may improve the electromagnetic performance and space utilization of the transformer. Sequential installation ensures precise alignment between components, improving assembly efficiency and electromagnetic compatibility.

[0021] The plurality of insulating sheets 7 , the input-side winding 5 and the output-side winding 11 are distributed alternately.

[0022] The staggered distribution improves space utilization, reduces electromagnetic interference and optimizes signal stability.

[0023] The upper cover core 8 and the lower cover core 2 are both provided with a first magnetic column 9 and a second magnetic column 10 , the resonant inductor 3 is wound on the second magnetic column 10 , and the insulating sheet 7 , the input side winding 5 , and the output side winding 11 are installed on the first magnetic column 9 .

[0024] The two-column design helps to effectively distribute the magnetic flux, reduce magnetic resistance, and improve the efficiency and power density of the transformer. Directly winding on the second column concentrates the magnetic flux, reduces leakage flux, and improves resonance efficiency. Installing these components on the first column simplifies the assembly process, maintains electrical isolation, and enhances safety and reliability.

[0025] A mutual inductor 6 is assembled on the top of the resonant inductor 3 .

[0026] It also includes a pin 4 , which is connected to a transformer 6 .

[0027] The direct assembly of the transformer achieves a compact design, reduces external connections, reduces losses, and improves measurement accuracy. The pin connection simplifies circuit design, facilitates quick assembly and maintenance, and improves circuit stability.

[0028] The cover plate 1 is installed on one side of the lower cover core. The installation of the cover plate enhances the structural stability, protects the internal components, and may improve the heat dissipation and electromagnetic shielding effects.

[0029] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] As shown in the drawings, a preferred embodiment of the present invention is shown.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An asymmetric magnetic integrated structure planar transformer, characterized in that: It includes an upper cover core, a lower cover core, multiple insulating sheets, an input side winding, an output side winding and a resonant inductor. The upper cover core and the lower cover core are asymmetrically designed, and the resonant inductor, the insulating sheet, the input side winding and the output side winding are sequentially installed in the middle of the upper cover core and the lower cover core.

2. The asymmetric magnetic integrated structure planar transformer according to claim 1, characterized in that: The plurality of insulating sheets, input-side windings and output-side windings are distributed alternately.

3. The asymmetric magnetic integrated structure planar transformer according to claim 2, characterized in that: The upper cover core and the lower cover core are both provided with a first magnetic column and a second magnetic column, the resonant inductor is wound on the second magnetic column, and the insulating sheet, the input side winding and the output side winding are installed on the first magnetic column.

4. The asymmetric magnetic integrated structure planar transformer according to claim 3, characterized in that: A mutual inductor is assembled on the top of the resonant inductor.

5. The asymmetric magnetic integrated structure planar transformer according to claim 4, characterized in that: The device also includes a pin, which is connected to the transformer.

6. The asymmetric magnetic integrated structure planar transformer according to claim 5, characterized in that: The invention also comprises a cover plate, wherein the cover plate is installed on one side of the lower cover core.

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