COIL

PROBLEM TO BE SOLVED: To provide a coil suppressing the generation of heat in a winding due to a leakage magnetic flux.SOLUTION: A coil includes: cores 110 and 120 which include central magnetic legs 111 and 121 provided with a gap, and two side magnetic legs 112, 113 and 122, 123, respectively; a b...

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Bibliographic Details
Main Authors OGAWA TOMOYA, ONUMA FUMIHIKO
Format Patent
LanguageEnglish
Japanese
Published 25.07.2016
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To provide a coil suppressing the generation of heat in a winding due to a leakage magnetic flux.SOLUTION: A coil includes: cores 110 and 120 which include central magnetic legs 111 and 121 provided with a gap, and two side magnetic legs 112, 113 and 122, 123, respectively; a bobbin 130 at the inside of which the central magnetic legs are fitted and at the outside of which a winding 140 is wound around; and a magnetic body layer 150 arranged between the central magnetic legs and the winding and having high magnetic permeability. In addition, the magnetic body layer is arranged between the central magnetic legs and the bobbin, comprises a component separate from that of the bobbin, and is formed by sintering a powdery magnetic body.SELECTED DRAWING: Figure 2 【課題】漏れ磁束に起因する巻線における発熱を抑制するコイルを提供する。【解決手段】空隙を設けた中央磁脚１１１、１２１と２つの側磁脚１１２、１１３、１２２、１２３とを有するコア１１０、１２０と、内部に中央磁脚を嵌入し、かつ、外部に巻線１４０を巻き付けるボビン１３０と、中央磁脚と巻線との間に配置された透磁率の高い磁性体層１５０と、を備える。さらに、磁性体層は、中央磁脚とボビンとの間に配置され、ボビンとは別個の部品で構成されており、粉末状磁性体を焼結させて構成されている。【選択図】図２
Bibliography:Application Number: JP20150010622