Title:
PLANAR TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2020/034730
Kind Code:
A1
Abstract:
Disclosed in the present application is a planar transformer. The planar transformer comprises: a power source PCB; a magnetic core, the magnetic core being fixed to the power source PCB and being used for forming a closed magnetic path; a secondary printed coil which is used to electrically connect to an output circuit, the secondary printed coil being printed on the power source PCB and being provided surrounding the magnetic core; a primary flat coil, which is used to electrically connect to an input circuit, the primary flat coil being close to the secondary printed coil and being provided surrounding the magnetic core. According to the technical solution of the present application, a secondary printed coil is printed and formed on a power source PCB, thereby simplifying the processing procedure and improving production efficiency; at the same time, the potential risk of a connection pin coming loose is reduced; since the secondary printed coil is built-in on the power source PCB, the number of elements of a separate transformer is reduced and costs are lowered.
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Inventors:
WU JUNHUI (CN)
Application Number:
PCT/CN2019/089827
Publication Date:
February 20, 2020
Filing Date:
June 03, 2019
Export Citation:
Assignee:
SHENZHEN TCL NEW TECH CO LTD (CN)
International Classes:
H01F27/40; H01F27/24; H01F27/28; H01F30/06
Foreign References:
| CN208444728U | 2019-01-29 | |||
| CN108335879A | 2018-07-27 | |||
| CN106449042A | 2017-02-22 | |||
| CN101017730A | 2007-08-15 | |||
| CN203134536U | 2013-08-14 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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