INDUCTANCE ELEMENT AND MANUFACTURE THEREOF

Japanese Patent JP3497276

B2

PURPOSE: To improve the dimensional precision of a terminal shape by a method wherein a drum type magnetic core is arranged on the surface of a terminal base while the periphery of a lower side flange is held by the protrusions at the four corners, on the other hand, the lead wires at the winding start and the winding end are connected to a winding terminal part.
CONSTITUTION: The rectangular inductance element is composed of a terminal base 4 having protrusions at the four corners on the surface as well as a plurality of L type terminals 10 insertion-molded so as to protrude one end winding terminal part 16 from the surface part of the terminal base 14 while the other end fitting terminal part 15 from the rear surface part; a drum type magnetic core 12 holding the periphery of lower side flange arranged on the surface of the terminal base 14 by the four corner protrusions of said, core 12; a winding 13 wound up around this drum type magnetic core 12 while the lead wires at the winding start and the winding end are connected to said winding terminal 16. Through these procedures, the mechanical stress can be prevented from being imposed on the terminal of the terminal base 14 thereby enabling the dimensional precision of the terminal to be improved.

Yutaka Tsutsumi
Haruhiko Kuwata
Makoto Shinada
Hiroshi Momoi
Shinji Nakamura

JP10924695A

February 16, 2004

May 08, 1995

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Matsushita Electric Industrial Co., Ltd

H01F17/04; H01F27/29; H01F41/10; (IPC1-7): H01F17/04; H01F27/29

JP5315176A
JP3278505A
JP499808U
JP573915U
JP3113833U
JP550706U
JP2137008U
JP69103U
JP6226007U
JP5649115U
JP585316U

Fumio Iwahashi (2 others)

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