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US 11,310,874 B2Granted
Induction cooktop with improved magnetic flux concentrating foil
AssigneeWhirlpool Corporation
InventorsDavide Parachini, Cristiano Vito Pastore
Life of this patent
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Abstract
An induction cooking apparatus includes a plurality of induction coils arranged in an array. The induction coils include conductive windings and at least one foil. The at least one foil includes magnetically permeable material extending beneath the plurality of induction coils.
Claims20
An induction cooking apparatus comprising:
- a plurality of induction coils arranged in an array, the induction coils comprising conductive windings;
- at least one foil comprising magnetically permeable material extending beneath the plurality of induction coils, wherein the at least one foil defines at least one foil aperture extending through the at least one foil;
- and
- an electrical circuit in communication with each of the plurality of induction coils via at least one conductor disposed in the at least one foil aperture.
1 more element
An induction cooking apparatus comprising:
- a housing forming an enclosure comprising a first side and a second side, opposite the first side;
- a plurality of coil beam assemblies each comprising:
- an array of induction coils, the induction coils comprising conductive windings disposed around a coil former;
- at least one magnetic foil extending beneath the plurality of induction coils;
- a beam structure comprising a first end portion and a second end portion extending across the housing of the cooking apparatus from the first side to the second side, wherein the beam structure is configured to support the array of induction coils;
- and
- an electrical circuit in communication with each of the plurality of induction coils, wherein the magnetic foil extends under at least a portion of each of the induction coils in the array;
- and
- wherein the coil beam assemblies extend from the first side to the second side forming an induction coil matrix.
6 more elements
An induction coil assembly fora cooking apparatus comprising:
- a plurality of induction coils arranged in a linear array, each induction coil comprising conductive windings disposed around a coil former, wherein a length of the linear array corresponds to the number of induction coils arranged in the linear array;
- at least one magnetically permeable foil extending beneath the linear array formed by the induction coils, wherein the magnetically permeable foil forms a mat having a substantially uniform thickness, wherein the magnetically permeable foil extends beneath each of the induction coils forming the linear array;
- a beam structure configured to extend across a housing of the cooking apparatus from a first side to a second side, opposite the first side, wherein the beam structure is configured to support the magnetically permeable foils and the array of induction coils;
- and
- an electrical circuit in connection with the beam structure and in communication with each of the plurality of induction coils forming the linear array, wherein the at least one magnetically permeable foil extends the length of the linear array, and wherein a width of the at least one magnetically permeable foil corresponds to a single induction coil forming the linear array.
2 more elements
Dependencies are inferred from the claim text.