Method for the production of an inductive component element
First Claim
1. A method for the production of an inductive component element, comprising the steps of applying a non-magnetic layer to and at least partially covering a magnetic core of rectangular, ring-shaped configuration having generally oppositely disposed faces connected by respective edge portions, and impacting the layer with a laser beam, incident at an angle of less than 90*, to partially sever selected portions of the layer from other portions thereof on both the faces and adjoining edge portions, and thereby define a generally helically shaped inductive coil.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for producing an inductive component element in which a magnetic core is covered at least partially with a non-magnetic, metallic layer which is thereafter impacted with a laser beam to partially sever selected portions of the metallic layer from other portions thereof to the finally generally helically shaped inductive coil, a layer of insulating material being interposed between the metallic layer and the magnetic core if the latter is constructed of a magnetic material having insufficient insulating properties.
-
Citations
6 Claims
-
1. A method for the production of an inductive component element, comprising the steps of applying a non-magnetic layer to and at least partially covering a magnetic core of rectangular, ring-shaped configuration having generally oppositely disposed faces connected by respective edge portions, and impacting the layer with a laser beam, incident at an angle of less than 90*, to partially sever selected portions of the layer from other portions thereof on both the faces and adjoining edge portions, and thereby define a generally helically shaped inductive coil.
-
2. A method according to claim 1, comprising the further step of applying an insulating intermediate layer directly upon the magnetic core prior to the application of said metallic layer.
-
3. A method according to claim 1, wherein a selected base and edge portions are initially impacted, the core rotated through 180* about an axis operative to correspondingly dispose the other face of the core and corresponding edge portions for beam impact, and thereafter impacting the last-mentioned face and edge portions with said laser beam.
-
4. A method for the production of an inductive component element, comprising the steps of applying a non-magnetic metallic layer to and at least partially covering a magnetic core of ring-like configuration, comprising a pair of spaced longitudinally extending side portions connected at their ends by respective transversely extending side portions, impacting the layer with a laser beam to partially sever selected portions of the layer from other portions thereof, while advancing the core in the direction of the longitudinal side portions (Y-direction) by an amount to provide a desired spiral pitch, and reciprocating back and forth in the direction of its transverse side portions (X-direction) by an amount which is greater than the width of the longitudinal side portions, subsequently rotating the ring core 180* about an axis in the X-Y plane, and repeating such advancing and reciprocating steps while impacting the core, whereby the metallic layer is divided into a generally helically shaped inductive coil by the action of said laser beam.
-
5. A method according to claim 4, comprising impacting the metallic layer with such laser beam at an angle of approximately 45* with respect to the XY-plane and at an angle with respect to the X- or Y-axis, respectively, at an angle determined by the ring core thickness and the desired spiral pitch.
-
6. A method according to claim 5, comprising the further step of applying an insulating intermediate layer directly upon the magnetic core piror to the application of said metallic layer.
Specification