Induction Cooking
First Claim
1. An induction cooking appliance comprising:
- a module comprising power electronics;
one or more electrical coils operatively connected to the power electronics;
a cooktop having an upper surface and a lower surface;
a cooling chamber, separate from the power electronics module, wherein the lower surface of the cooktop forms a boundary of the cooling chamber; and
a cooling system that flows cooling fluid through the cooling chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
An induction cooking system with an induction heating system, a cooktop, and cool touch cookware that has a target layer that is heated by induction. An absolute cookware temperature is directly sensed at one or more locations of the cookware, for example at the target layer. A relative cookware temperature can be determined based on the value of an electrical variable of a circuit that includes the target layer. The cookware can include a layer of thermal insulation directly below and spaced from the target layer by a gap. The insulation and gap act as the major heat insulating elements to keep the outer surface of the cookware cool. This allows the induction coil to be placed just below the cooktop, without any insulation between the coil and the cooktop. The cooktop can be cooled by placing a cooling chamber just below the cooktop and drawing air through the cooling chamber. The induction coil can be located in the cooling chamber.
261 Citations
20 Claims
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1. An induction cooking appliance comprising:
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a module comprising power electronics; one or more electrical coils operatively connected to the power electronics; a cooktop having an upper surface and a lower surface; a cooling chamber, separate from the power electronics module, wherein the lower surface of the cooktop forms a boundary of the cooling chamber; and a cooling system that flows cooling fluid through the cooling chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An induction cooking appliance comprising:
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a module comprising power electronics; one or more electrical coils operatively connected to the power electronics; a generally planar, relatively thin cooktop that has an upper surface and a lower surface and an edge along its perimeter; a chamber, separate from the power electronics module, wherein the chamber has an upper boundary and a lower boundary and the upper boundary of the chamber is defined by the lower surface of the cooktop, wherein the electrical coils are located in the chamber and spaced from both the lower boundary and the upper boundary of the chamber, wherein the electrical coils are spaced from one another and the chamber further comprises baffles located in spaces between the coils, the baffles extending essentially from the lower boundary of the chamber to the lower surface of the cooktop, and wherein the chamber further includes air inlet openings near the edge of the cooktop; and one or more fans that draw air from outside the induction cooking appliance through the air inlet openings and into the chamber along the lower surface of the cooktop and above and below the electrical coils. - View Dependent Claims (17, 18, 19, 20)
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Specification