COIL DEVICE

PROBLEM TO BE SOLVED: To improve heat radiation effect of divided cores of a transformer or choke coil to a metallic base substrate. SOLUTION: A core member wound with coils 1 and 2 is divided into an upper core member 3 and a lower core member 4, and the lower core member 4 is brought into contact...

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Bibliographic Details
Main Authors SEZAI YUJI, MAEYAMA SHIGETAKA, GAMO MASAHIRO
Format Patent
LanguageEnglish
Published 19.01.2001
Edition7
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 improve heat radiation effect of divided cores of a transformer or choke coil to a metallic base substrate. SOLUTION: A core member wound with coils 1 and 2 is divided into an upper core member 3 and a lower core member 4, and the lower core member 4 is brought into contact with the metallic base substrate 5. This coil device is so constituted that h1>h2, where h1 is the distance from the metallic base substrate 5 to the joining surface between the lower core member 4 and upper core member 3, and h2 is the distance from the joining surface to the top part of the upper core member 3.
Bibliography:Application Number: JP19990141151