公开(公告)号：US20250113413A1

公开(公告)日：2025-04-03

申请号：US18374431

申请日：2023-09-28

Applicant: WHIRLPOOL CORPORATION

Inventor： Nicoletta Sinelli ,  Andrea Gallivanoni ,  Maira Carline Schu ,  Luca Minetto ,  Annalisa Pacioni ,  Keila Mara Borsari Luiz De Araujo

IPC: H05B6/06

Abstract: A cooktop including: (a) a heating element; and (b) a controller in communication with the heating element, the controller configured (i) to determine a target cooking temperature for a cooking operation of one or more food items within a cooking vessel that additionally calls for one or more usable fats, (ii) to determine the one or more usable fats having a smoke point that is greater than the target cooking temperature from a predetermined list of fats, and (iii) to cause a human-machine interface in communication with the controller to issue a notification of the one or more usable fats for the cooking operation.

公开(公告)号：US12058797B2

公开(公告)日：2024-08-06

申请号：US16946098

申请日：2020-06-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Federica Inderst

IPC: H05B6/06 ,  F24C7/08 ,  G01B7/02 ,  G01D5/20 ,  H05B6/12

CPC classification number: H05B6/065 ,  F24C7/083 ,  G01B7/02 ,  G01D5/20 ,  H05B6/1272 ,  H05B2213/03 ,  H05B2213/05

Abstract: A method is provided for identifying cookware items placed on top of an induction cooktop having a plurality of coils. The method includes the following steps: acquire coverage factor information for each coil and collect it into a matrix; identify all local maxima in the matrix; find the coordinates of each of the local maxima as follows: when the local maxima is a single coil, the coordinates are those of the coil center, and when the local maxima is a region of contiguous coils, the coordinates are those of a centroid of the region; calculate distances from each coil to each of the coordinates of the identified local maxima; determine a minimum among the distances; classify the coils in clusters, based on the distances from the local maxima; and use the identified coil clustering to estimate the position, shape, size, and orientation of the cookware items.

公开(公告)号：US20240167694A1

公开(公告)日：2024-05-23

申请号：US18515825

申请日：2023-11-21

Applicant: WHIRLPOOL CORPORATION

Inventor： Mario Barbati ,  Margherita Basso ,  Andrea Gallivanoni ,  Annalisa Pacioni

IPC: F24C15/10

CPC classification number: F24C15/107 ,  F24C15/102

Abstract: A cooktop assembly includes a cooking panel. A heating element is operably coupled to the cooking panel. The heating element forms a heating zone for said cooktop assembly. A support surface extends over the heating element for supporting a cooking vessel thereon. The support surface includes a heating zone surface in the heating zone, a surrounding surface outside the heating zone, and a surface discontinuity defining a kinesthetic feature providing feedback for demarcating the heating zone relative to the surrounding surface and positioning the cooking vessel relative to the heating zone and, consequently, the heating element.

公开(公告)号：US11140751B2

公开(公告)日：2021-10-05

申请号：US15959943

申请日：2018-04-23

Applicant: WHIRLPOOL CORPORATION

Inventor： Salvatore Baldo ,  Andrea Gallivanoni ,  Davide Parachini ,  Cristiano Vito Pastore

IPC: H05B6/06 ,  H05B41/28 ,  H02J1/10 ,  H05B6/12 ,  H02M7/06

Abstract: A control circuit for an induction heating device includes a D.C. power supply, referenced to a ground connection and configured to supply power to the induction heating device. A switching device is configured to be selectively activated to control the induction heating device. The switching device is connected on one end to the ground connection. A resonant load is disposed between the D.C. power supply and the switching device, the resonant load including a capacitor and an inductor connected in a parallel configuration. At least one rectifying device is disposed in series with the resonant load and the switching device. The switching device is configured to control current from the D.C. power supply through the resonant load.

公开(公告)号：US10911051B2

公开(公告)日：2021-02-02

申请号：US16311271

申请日：2016-12-21

Applicant: WHIRLPOOL CORPORATION ,  Panasonic Corporation

Inventor： Franco Brindani ,  Andrea Gallivanoni

IPC: H03L5/02 ,  H02J50/20 ,  H03L7/07 ,  H05B6/68 ,  H05B6/70

Abstract: An electromagnetic energy delivery system includes a set of radio frequency channels; each channel configured to receive a set of reference signals. Each channel further includes a compensation component and a phase-locked loop component. The compensation component can be configured to determine a phase difference between at least a subset of the reference signals; compare the phase difference with a predetermined reference phase difference; and determine a reference signal compensation offset value based on the comparison of the phase difference and the predetermined reference phase difference. The phase-locked loop component can be configured to generate a phase-shifted signal wherein the phase shift is based on at least the reference signal compensation offset value.

公开(公告)号：US20250126685A1

公开(公告)日：2025-04-17

申请号：US18378762

申请日：2023-10-11

Applicant: WHIRLPOOL CORPORATION

Inventor： Salvatore Baldo ,  Mario D. Barbati ,  Marco Casucci ,  Marco Di Caprio ,  Andrea Gallivanoni

IPC: H05B6/06 ,  G08B3/00 ,  G08B21/18

Abstract: A cooktop includes a burner, a power delivery module including a burner, an actuator for selectively heating the burner, and an audible alert module. The cooktop further includes a control system configured to detect a presence of a cooking vessel with a detection signal from the power delivery module and determine if a location of the cooking vessel is centered on the burner within a first threshold distance. The control system is further configured to, if the location of the cooking vessel is not centered within the first threshold distance, prevent the actuator from selectively heating the burner and generate a first audible alert with the audible alert module.

公开(公告)号：US12245348B2

公开(公告)日：2025-03-04

申请号：US17387143

申请日：2021-07-28

Applicant: WHIRLPOOL CORPORATION

Inventor： Salvatore Baldo ,  Andrea Gallivanoni ,  Davide Parachini ,  Cristiano Vito Pastore

IPC: H05B6/06 ,  H05B6/12 ,  H02M7/06

Abstract: A method for controlling an induction heating device includes supplying current from a D.C. power supply into a resonant load and emitting the current from the resonant load. The current is directionally conducted from the output node of the resonant load to a switching node downstream from the output node. The current conducted through the resonant load is controlled with a switching device.

公开(公告)号：US20220104315A1

公开(公告)日：2022-03-31

申请号：US17089878

申请日：2020-11-05

Applicant: Whirlpool Corporation

Inventor： Salvatore Baldo ,  Andrea Gallivanoni ,  Ajit Manohar ,  Davide Parachini ,  Cristiano Vito Pastore

IPC: H05B6/06 ,  G01K1/14 ,  G01K7/22 ,  H05B6/12

Abstract: An induction cooking apparatus including a cooktop panel, induction coil, controller, and temperature sensor assembly. A temperature sensor and guiding support are positioned in sliding engagement in an opening in the center of the induction coil where an upper end of the temperature sensor sits above a top surface of the induction coil. The controller includes a first circuit board that supplies electricity to the induction coil. A second circuit board, separate from the first circuit board, is electrically connected to the temperature sensor and includes a cantilevered leaf-spring structure that supports the temperature sensor. The guiding support is a load bearing structure that transmits a biasing force created by deflection of the cantilevered leaf-spring structure to the temperature sensor, which operates to hold the temperature sensor in contact with a lower surface of the cooktop panel.

公开(公告)号：US20210360750A1

公开(公告)日：2021-11-18

申请号：US17387143

申请日：2021-07-28

Applicant: WHIRLPOOL CORPORATION

Inventor： Salvatore Baldo ,  Andrea Gallivanoni ,  Davide Parachini ,  Cristiano Vito Pastore

IPC: H05B6/06 ,  H05B6/12

Abstract: A method for controlling an induction heating device includes supplying current from a D.C. power supply into a resonant load and emitting the current from the resonant load. The current is directionally conducted from the output node of the resonant load to a switching node downstream from the output node. The current conducted through the resonant load is controlled with a switching device.

公开(公告)号：US11057969B2

公开(公告)日：2021-07-06

申请号：US16308015

申请日：2016-12-27

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Matteo Rinaldi ,  Natalia Roumpedaki

IPC: H05B6/70 ,  H05B6/06 ,  H05B6/68 ,  H05B6/72 ,  H02M1/15

Abstract: A solid state radio frequency generation system is provided for an electromagnetic cooking device having an enclosed cavity. The radio frequency generation system includes: an RF feed for introducing electromagnetic radiation into the cavity to heat a food load; a high-power RF amplifier coupled to the RF feed, the amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input RF signal; a small signal generator for supplying the input RF signal to the amplifier; and a switching power supply unit including a single DC-DC converter that converts AC mains power to low voltage DC for supply to the amplifier, and a controller configured to adapt an input current from the AC mains power to form a predefined periodic waveform with the same frequency as the AC mains power for supply to the small signal generator.