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US 4,060,783 AGranted
Magnetic circuit and method of making
AssigneeGeneral Electric Company
InventorJohn D. Harnden, Jr.
Life of this patent
Estimating the term…
Abstract
A low cost magnetic circuit and method of making the same are disclosed. The magnetic circuit comprises an integral magnetic core having at least four legs in a closed magnetic path, at least one leg thereof with a circular cross section and a bobbin rotatably disposed about the circular portion for containing a coil winding. The coil is formed by rotating the bobbin while holding the core stationary.
Claims13
An electromagnetic circuit comprising:
- a closed magnetic core having at least four substantially orthoganally interconnecting side members forming a generally rectangular structure of integral nonlaminar construction wherein at least one side of said core structure is of circular cross section;
- a bobbin rotatably disposed about said circular side and in tight fitting engagement therewith, said bobbin comprising cylindrical complementary sections, said sections including flanges having drive means for forming a winding on said bobbin and interlocking means for locking said sections about said circular side;
- and
- at least one conductive winding on said bobbin for providing highly efficient electromagnetic coupling between said core and said winding.
1 more element
An electromagnetic circuit comprising:
- a closed magnetic core having at least four substantially orthoganally interconnecting side members forming a generally rectangular structure of integral nonlaminar construction wherein at least one side of said core structure is of circular cross section;
- a bobbin rotatably disposed about said circular side and in tight fitting engagement therewith;
- at least one conductive winding on said bobbin for providing highly efficient electromagnetic coupling between said core and said winding;
- and
- cooling means including a high thermal conduction path in contacting relation with said core for removing heat thereform.
2 more elements
An electromagnetic circuit comprising:
- a closed magnetic core having at least four substantially orthoganally interconnecting side members forming a generally rectangular structure of integral nonlaminar construction wherein at least one side of said core structure is of circular cross section;
- a bobbin rotatably disposed about said circular side and in tight fitting engagement therewith;
- and
- at least one conductive winding on said bobbin for providing highly efficient electromagnetic coupling between said core and said winding, said bobbin including first and second regions spatially separated from each other and wherein said one conductive winding is wound in said first region.
1 more element
Dependencies are inferred from the claim text.