INDUCTANCE ELEMENT

Japanese Patent JP3693557

B2

PROBLEM TO BE SOLVED: To provide an inductance element, in which a drum core and a ring core are not slipped off from a mounting substrate, leaving sections in the vicinity of the mounting section of a terminal even when an impact is applied to the drum core and the ring core and reliability on the impact is improved.
SOLUTION: The inductance element has the drum core 4 in which an upper- end collar 2 is formed at one end of a winding shaft section 1 and a lower-end collar 3 at the other end, a coil 5 wound on the winding shaft section 1, the annular core 7 arranged on the outer circumference of the winding shaft section 1 for the drum core 4 while being bonded by the drum core 4 and an adhesive 6, and the terminal 9 secured to the ring core 7 while being electrically connected by the winding 5 and solder 8. The terminal 9 is installed from the outside of the ring core 7 while being formed in a U shape bent towards a top face 15 from the outer circumferential surface 14 of the ring core 7 and towards an inner circumferential surface 13 from the top face 15, and a mounting section 11 is mounted from the outer periphery of at least the ring core 7 to the winding-shaft opposed surface 16 of the lower-end collar 16 of the drum core 4.

Haruhiko Kuwata
Shinichi Morimoto
Iwasaki Hitoshi

JP2000157769A

September 07, 2005

May 29, 2000

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Matsushita Electric Industrial Co., Ltd

H01F37/00; H01F17/04; H01F27/29; (IPC1-7): H01F27/29; H01F17/04; H01F37/00

JP56141412U
JP1022137A
JP10321446A
JP3498677B1

Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito

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