Device and method for heating using RF energy
AssigneeGoji Limited
InventorsAlexander Bilchinsky, Eran Ben-Shmuel, Daniella Atzmony
Life of this patent
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Abstract
A method of heating and/or thawing using an RF heater is described. In some cases the heating differentially heats portions according to their dissipation ratios. Optionally, this avoids dissipating large amounts of energy into thawed portions while frozen portions are still extant and heat slowly. Optionally, this prevents overheating of thawed portions.
Claims25
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load a different power application protocol is applied at frequencies that dissipate at a first dissipation ratio and at frequencies that dissipate at a second dissipation ratio;
- and
- (b) applying said frequency/power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein associating comprises associating into at least three sets.
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load a different power application protocol is applied at frequencies that dissipate at a first dissipation ratio and at frequencies that dissipate at a second dissipation ratio;
- and
- (b) applying said frequency/power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein at least one set includes a plurality of non-continuous frequency ranges with at least one frequency belonging to another set between said ranges.
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load a different power application protocol is applied at frequencies that dissipate at a first dissipation ratio and at frequencies that dissipate at a second dissipation ratio;
- and
- (b) applying said frequency/power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein associating comprises associating into at least two sets each having a significant amount of dissipated energy or power assigned to a plurality of frequencies therein, said significant amount being at least 7% of a total dissipated power in a heating cycle being assigned to a set.
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load a different power application protocol is applied at frequencies that dissipate at a first dissipation ratio and at frequencies that dissipate at a second dissipation ratio;
- and
- (b) applying said frequency/power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein a set or sets for which power is transmitted cover at least 5% of working frequencies.
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load a different power application protocol is applied at frequencies that dissipate at a first dissipation ratio and at frequencies that dissipate at a second dissipation ratio;
- and
- (b) applying said frequency/power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein at least two of said sets each correspond to a dissipation ratio range of values of at least 10%.
A method of heating a load having different dissipation ratios at different frequencies using RF energy, comprising:
- (a) setting frequency/power pairs such that in heating the load less power per unit volume of portions is transmitted at frequencies that correspond to portions with a high heating per power applied (h/p) rate than at frequencies corresponding to portions with a low heating per power applied (h/p) rate;
- and
- (b) applying said frequency power pairs to heat said load;
- wherein said setting comprises:
- associating frequencies into sets associated with dissipation ratios;
- and
- selecting frequency/power pairs according to said sets;
- and
- wherein associating comprises associating into at least three sets.
Dependencies are inferred from the claim text.