Choke coil

Details Choke coil Choke coil

1997-09-02

1998-11-03

Gellner, Michael L.

Inductor devices

Core forms casing

336212, 336198, 336233, H01F 2702, H01F 2724, H01F 2730

Patent

active

058315055

ABSTRACT:
A choke coil equipped with a bobbin which is easy to form, which is resistant to mechanical impacts and which is light in weight and inexpensive. A bobbin 2 is formed, for example, by fitting or gluing together a bobbin member 21 formed of a magnetic substance and a bobbin member 22 formed of a non-magnetic substance. The magnetic substance bobbin member 21 is equipped with a core portion 23a with flange members 24a and 25a at the ends thereof and a flange member 26a provided in the central section thereof. The non-magnetic substance bobbin member 22 is equipped with a tubular portion 23b with flange members 24b and 25b provided at the ends thereof and a flange member 26b provided in the central section thereof. A tubular body portion 23 of the bobbin 2 is formed by the core portion 23a and the tubular portion 23b, and flange portions 24, 25 and 26 of the bobbin 2 are respectively formed by flange members 24a/24b, 25a/25b and 26a/26b.

REFERENCES:
patent: 4394636 (1983-07-01), Hiraku et al.
patent: 4916424 (1990-04-01), Kijima
patent: 5028904 (1991-07-01), Kurano
patent: 5506559 (1996-04-01), Yamaguchi
patent: 5629661 (1997-05-01), Ooi et al.

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