Inductor devices – With supporting and/or spacing means between coil and core – Preformed insulation between coil and core
Patent
1995-05-30
2000-04-04
Kozma, Thomas J.
Inductor devices
With supporting and/or spacing means between coil and core
Preformed insulation between coil and core
336213, H01F 2726, H01F 2730
Patent
active
060466634
ABSTRACT:
A transformer comprising: a coil bobbin which includes a pair of core winding portions and a pair of coupling portions for coupling the core winding portions so as to space the core winding portions a predetermined distance from each other and is formed, on its whole outer periphery, with a groove; a winding which is obtained by winding a conductor around the groove of the coil bobbin a predetermined number of times; and a pair of wound cores each of which is obtained by winding an electromagnetic steel plate around each of the core winding portions of the coil bobbin a predetermined number of times; wherein an outer peripheral surface of each of opposite side walls of the groove at the core winding portions is curved so as to have an arcuate cross-sectional shape.
REFERENCES:
patent: 4366520 (1982-12-01), Finke et al.
patent: 5506559 (1996-04-01), Yamaguchi
Kokura Shiro
Kubomura Tokutaro
Kawatetsu Electric Engineering Co., Ltd.
Kozma Thomas J.
Nishimoto Gosei Hanbai Co., Ltd.
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