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Flat panel transformer and switching power adapter

A technology of flat-panel transformers and power boards, applied in the field of transformers, can solve the problems of complex processing procedures and high costs, achieve the effects of simplifying processing procedures, increasing insulation distances, and realizing fully automatic processing

Active Publication Date: 2018-03-16
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present application provides a flat-panel transformer and a switching power supply adapter to solve the technical problems of complex processing procedures and high cost of the current flat-panel transformer

Method used

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  • Flat panel transformer and switching power adapter
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  • Flat panel transformer and switching power adapter

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Embodiment Construction

[0022] In order to solve the above-mentioned problems, the present application provides a flat-panel transformer, which is directly provided with a first set of welding points on the primary side of the PCB winding and a second set of welding points on the secondary side. ; Directly welded to the power supply board in the switching power adapter through the first set of welding points and the second set of welding points, no need to weld PIN pins on the PCB windings, which simplifies the processing procedures of flat transformers and realizes fully automated processing. The processing time cost is reduced and the processing efficiency is improved. Moreover, when the flat-panel transformer is used in the switching power supply adapter, the flat-panel transformer can be vertically installed on the power board in the switching power supply adapter through the first set of welding points and the second set of welding points, that is, the plane with the largest area of ​​the flat-pan...

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Abstract

The present application provides a flat panel transformer and a switching power adapter. The flat panel transformer includes a PCB winding and two magnetic cores. The two magnetic cores are respectively wrapped on both sides of the winding body of the PCB winding to form a closed magnetic circuit. A first set of welding points is arranged on the side of the primary winding of the PCB winding, anda second set of welding points is arranged on the side of the side of the secondary winding. The flat panel transformer is welded directly to an external circuit board through the first set of weldingpoints and the second set of welding points. In this way, the welding of PIN pins on the PCB winding board is not needed. Therefore, the processing order of the flat panel transformer is simplified,the fully automated processing is achieved, the processing time cost is educed, and the processing efficiency is improved. Moreover, the flat panel transformer can be installed vertically on the external circuit board through the first set of welding points and the second set of welding points. Compared with a horizontal flat panel transformer, the vertical installation mode reduces the space required for occupying the external circuit board and improves the space utilization rate of the external circuit board.

Description

Technical field [0001] The present invention relates to the technical field of transformers, in particular to a flat transformer and a switching power supply adapter applying the flat transformer. Background technique [0002] The switching power adapter is a rechargeable battery in a terminal (for example, a mobile phone, a tablet computer, a camera, etc.) after converting AC power into a low-voltage DC power, and realizes charging of the rechargeable battery. [0003] Flat-panel transformer (or, flat-panel transformer) is a kind of transformer and is the core device for power conversion. Flat-plate transformers use small-size E-type, RM-type or toroidal ferrite cores, which are usually made of high-frequency power ferrite materials, which have lower core losses at high frequencies; windings are printed in multiple layers The circuit board is stacked, and the winding or copper sheet is stacked on the flat high-frequency iron core to form the magnetic circuit of the transformer. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/28H01F27/30H01F27/24H01F3/14H01F30/06H02M1/00
CPCH01F3/14H01F27/24H01F27/2804H01F27/306H01F2017/048H01F2027/2819H01F2027/2809H02M1/00H01F27/02H01F27/324H01F2027/065H01F27/29H01F27/245H01F27/2866H05K1/0298H05K3/328
Inventor 胡艳军苗尊庆王春富赵为阳
Owner HUAWEI DIGITAL POWER TECH CO LTD
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