Matsushita Electric Industrial Co., Ltd.

Haruhiko Kuwata

Shinji Nakamura

Yutaka Tsutsumi

Hiroshi Momoi

Makoto Shinada

Shinichi Morimoto

Hitoshi Iwasaki

An inductance device includes terminals ( ) which are mounted to the inductance device from outside of a ring core ( ). A fit-section ( ) of one of each terminal ( ) is bent along an outer wall ( ), an upper face ( ) of a groove ( ), and an inner wall ( ) of the ring core ( ). A mount-section ( ) of one of each terminal ( ) extends from vicinity of an outer perimeter of the ring core ( ) toward inside of a drum core ( ) along a lower brim ( ). When a shock is applied to the drum core ( ) or the ring core ( ), this structure prevents the drum core ( ) and the ring core ( ) from falling away from a board, where they have been mounted, leaving vicinity of the fit-section ( ) of the terminal ( ) on the board. This structure thus improves shock-proofness of the inductance device.

Inductance device

In an inductor including a magnetic core on a top surface of a terminal table, a plurality of L-shaped conductors are inserted into the terminal table so that two ends of each of the L-shaped conductors are projecting from a side surface of the terminal table. The plurality of L-shaped conductors each have at least one stepped portion. One of the two ends which is on a higher level than the stepped portion acts as a winding terminal around which the wire is wound, and the other end which is on a lower level than the stepped portion acts as a mounting terminal used for mounting of the inductor. The winding terminal is projecting from a higher level of the side surface of the terminal table than the mounting terminal.

Method of producing an inductor

Inductor with terminal table

Growing community of inventors

Osaka, Japan

Haruhiko Kuwata