Inductor coil
DC
First Claim
Patent Images
1. A high current low profile (IHLP) inductor comprising:
- a conductive coil having an open center, an outside surface, and first and second coil ends;
a dry powdered magnetic conductive material comprising a plurality of powdered conductive particles;
an insulation material surrounding the powdered conductive particles and providing insulation to the powdered conductive particles;
a dry resin comprising dry resin particles;
a mixture comprising the dry powdered conductive particles, the insulation material, and the dry resin particles thoroughly mixed together;
an inductor body comprising the compressed mixture of the conductive particles of conductive material, the insulation material, and the dry resin particles;
the inductor body surrounding the conductive coil and contacting the conductive coil both inside the open center and on the outside surface of the conductive coil while at the same time preventing the conductive particles of conductive material from shorting out against the coil, and causing the conductive particles to shield the coil;
the first and second coil ends being outside the inductor body.
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Abstract
A high current, low profile inductor includes a conductor coil surrounded by magnetic material to form an inductor body. The inductor coil is formed from a flat plate which is cut into a sine-shaped configuration and then is folded in accordion fashion to create a helical coil.
62 Citations
6 Claims
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1. A high current low profile (IHLP) inductor comprising:
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a conductive coil having an open center, an outside surface, and first and second coil ends; a dry powdered magnetic conductive material comprising a plurality of powdered conductive particles; an insulation material surrounding the powdered conductive particles and providing insulation to the powdered conductive particles; a dry resin comprising dry resin particles; a mixture comprising the dry powdered conductive particles, the insulation material, and the dry resin particles thoroughly mixed together; an inductor body comprising the compressed mixture of the conductive particles of conductive material, the insulation material, and the dry resin particles; the inductor body surrounding the conductive coil and contacting the conductive coil both inside the open center and on the outside surface of the conductive coil while at the same time preventing the conductive particles of conductive material from shorting out against the coil, and causing the conductive particles to shield the coil; the first and second coil ends being outside the inductor body. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Litigation Data
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Current AssigneeVishay Dale Electronics (Vishay Intertechnology Incorporated)
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Original AssigneeVishay Dale Electronics (Vishay Intertechnology Incorporated)
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InventorsShafer, Timothy M., Jelkin, Brett W.
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Primary Examiner(s)Nguyen; Tuyen T.
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Application NumberUS11/409,651Publication NumberTime in Patent Office393 DaysField of Search336/65, 336/83, 336/90, 336/96, 336/192, 336220-222, 336/233US Class Current336/83CPC Class CodesH01F 17/04 with magnetic coreH01F 2017/048 with encapsulating core, e....H01F 2027/2861 Coil formed by folding a blankH01F 27/027 specially adapted for combi...H01F 27/2847 Sheets; Strips H01F27/2866 ...H01F 27/292 Surface mounted devicesY10T 29/4902 Electromagnet, transformer ...
