Method of fabricating a magnetic flux concentrating core
AssigneeSundstrand Corporation
InventorsEdward W. Smith, Arthur A. Pershall
Life of this patent
Estimating the term…
Abstract
A current sensor operable over a selected operating frequency range includes a flux concentrating core. The core is fabricated by forming a series of tape-wound laminations into a desired closed shape, securing the laminations together at a point and removing material at the point to create a gap.
Claims9
A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers;
- securing the layers together at a first point while leaving the layers unsecured at a second point spaced from the first point;
- and
- removing magnetic laminate material at the first point to form a gap wherein the layers can be separated to permit flexing at the second point.
A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers;
- securing the layers together at a point wherein the step of securing comprises the steps of wrapping an epoxy-impregnated fiber around the layers and curing the epoxy-impregnated fiber;
- and
- removing magnetic laminate material at the point to form a gap.
A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers;
- securing the layers together at a point;
- and
- removing magnetic laminate material at the point to form a gap, wherein the gap is defined by core ends separated by a gap width and further in combination with the steps of flexing the core to increase the gap width and inserting the core ends into a bobbin.
A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material to form a plurality of layers;
- securing the layers together at a first area adjacent a point while leaving the layers unsecured at a second area spaced from the point;
- and
- removing magnetic laminate material at the point to form a gap, wherein the layers can be separated at the second area to permit flexing at the second area.
A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material to form a plurality of layers;
- securing the layers together at an area adjacent a point, wherein the step of securing comprises the steps of wrapping an epoxy-impregnated fiber around the layers and curing the epoxy-impregnated fiber;
- and
- removing magnetic laminate material at the point to form a gap.
Dependencies are inferred from the claim text.