Device for induction heating of a cooking vessel
First Claim
1. An arrangement for a heating device adapted to be placed on a table for heating a cooking vessel, for keeping hot the hot foods contained in said vessel, the arrangement comprising:
- a mobile vessel support having laterally separated first and second portions, the mobile vessel support adapted to rest on a table;
a power supply module in the first portion of the mobile vessel support, the power supply module comprising a rechargeable source of electric energy live with a safe direct current;
at least one flat inductor in the second portion of the mobile vessel support the flat inductor being supplied with electric current by a high frequency current chopper connected to the source of electric energy in the power supply module, the flat inductor generating an electromagnetic field which is perpendicular to a horizontal plane of the table upon which the heating device is adapted to rest; and
a field armature of minimal thickness comprised of completely closed turns, the field armature being integral with the vessel to provide a mobile assembly therewith separate from the flat inductor and the armature cooperating with the vessel and flat inductor to heat food within the vessel by heat generated in the armature due to eddy currents flowing therein induced by magnetic coupling with the flat inductor; and
the mobile vessel support being configured to cooperate with similar mobile vessel supports when stacked in an alternating array therewith in which first portions of every other vessel support are aligned in the stack so that the power supply modules of every other mobile vessel support are aligned.
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Accused Products
Abstract
A device for heating a cooling vessel for keeping warm the food contained in the vessel. A mobile support is provided for the vessel in which are arranged a supply module comprising a source of live electric energy including a high frequency voltage selector supplied by the source and at least a flat inductor of fine thickness supplied by the voltage selector. The source of electric energy generating an electromagnetic field perpendicular to the support plane and a flat armature of fine thickness made up of completely closed spires and placed under the vessel parallel to the supporting table.
25 Citations
29 Claims
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1. An arrangement for a heating device adapted to be placed on a table for heating a cooking vessel, for keeping hot the hot foods contained in said vessel, the arrangement comprising:
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a mobile vessel support having laterally separated first and second portions, the mobile vessel support adapted to rest on a table;
a power supply module in the first portion of the mobile vessel support, the power supply module comprising a rechargeable source of electric energy live with a safe direct current;
at least one flat inductor in the second portion of the mobile vessel support the flat inductor being supplied with electric current by a high frequency current chopper connected to the source of electric energy in the power supply module, the flat inductor generating an electromagnetic field which is perpendicular to a horizontal plane of the table upon which the heating device is adapted to rest; and
a field armature of minimal thickness comprised of completely closed turns, the field armature being integral with the vessel to provide a mobile assembly therewith separate from the flat inductor and the armature cooperating with the vessel and flat inductor to heat food within the vessel by heat generated in the armature due to eddy currents flowing therein induced by magnetic coupling with the flat inductor; and
the mobile vessel support being configured to cooperate with similar mobile vessel supports when stacked in an alternating array therewith in which first portions of every other vessel support are aligned in the stack so that the power supply modules of every other mobile vessel support are aligned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification