An electric kettle includes a container in which water is received, and a base on which the container is seated, wherein the container includes a handle, a body defining space in which water is received, a lid configured to open and close an open upper surface of the body, a heating module mounted on the lower surface of the body and configured to heat water contained in the body, a capacitor; a memory; and a controller configured to detect a voltage of the capacitor according to a preset period and to perform a keep-warm operation based on voltage difference between a currently detected first voltage of the capacitor and a previously detected second voltage of the capacitor, and when the body is seated on the base, commercial power is supplied to the base, and the capacitor is charged by the power transmitted through the base.

This application provides a temperature control apparatus and a fermented tea manufacturing method. The temperature control apparatus includes: a base housing, a controller, a heating component, an air supply component, and a temperature sensing component, where the controller, the heating component, and the air supply component are disposed in an inner cavity of the base housing; the controller is electrically connected to the heating component; the controller is electrically connected to the air supply component; and the controller is electrically connected to the temperature sensing component; and the controller is configured to perform temperature control, and is specifically configured to: control, based on a temperature detected by the temperature sensing component, the heating component to start or stop working, so that a controlled temperature detected by the temperature sensing component is maintained in a first temperature interval; and control, based on a temperature detected by the temperature sensing component, the air supply component to start or stop working, so that a controlled temperature detected by the temperature sensing component is maintained in a second temperature interval. The temperature control apparatus in this application features a small volume, applicability to household purposes, easy operations, and low costs.

An electric pot may have an improved relay installation position. The electric pot may include a supporter and a pot main body provided with a heater driven to provide heat through an electric connection with connection terminals. The supporter may include a relay part that optionally switches between a connection of the power supply to a third connection terminal and a disconnection of the power supply to the third connection terminal.

A liquid heating device, for use with an induction hob, comprises a liquid heating vessel and a ferromagnetic heating plate (5) arranged to be located inside the vessel adjacent to the base (3) of the vessel. The ferromagnetic heating plate (5) is arranged to be movable vertically in a substantially perpendicular direction away from the base (3) of the vessel and return. An arrangement to lift the ferromagnetic heating plate comprises a thermally sensitive actuator (11, 12, 14, 15, 16), wherein the ferromagnetic heating plate (5) is mechanically coupled to the thermally sensitive actuator. The thermally sensitive actuator comprises a means to store energy (11), a steam chamber (13) fluidly connected to the vessel, and a releasable latching mechanism (15) for the actuator which incorporates a thermally sensitive device (14) set to operate at a predetermined temperature when influenced by the proximity of steam entering the steam chamber (13) from boiling water in the vessel. The thermally sensitive actuator further comprises means to facilitate a manual intervention of the actuator's operation and permitting a user to set or reset the actuator's position.

A solid-state radio frequency (SSRF) water heating apparatus is disclosed. In embodiments, the SSRF water heater includes a water tank, SSRF generator array and RF sensors enclosed within an RF-shielded cage. The SSRF array synthesizes RF signals in the microwave range and transmits the RF energy through the water tank, exciting and heating the water molecules without direct contact. The RF sensors at the opposite end of the tank sense residual RF energy not absorbed by the water. Control processors regulate the generation and transmission of the RF energy based on the sensed residual energy. The heated water and/or generated steam is piped to hot water dispensers, beverage makers, or steam ovens.

An electric kettle may include a body made of a metal material and configured to form a space in which fluid, such as water is contained, a heating module provided in the body to heat the space, a handle mounted to protrude from an outer surface of the body, a handle cover made of a metal material and configured to form a protruding upper surface of the handle, and a handle printed circuit board (PCB) provided inside of the handle and including a touch sensor in close contact with a rear surface of the handle cover to sense a touch operation of the handle cover. An operation of the heating module may be controlled by the handle PCB.

The present disclosure relates to sous-vide cooking in an oven of a cooking appliance. A temperature probe senses a temperature of a water bath or the food in the water bath, which is placed in the oven cavity. The sensed temperature is used as a feedback input for a controller that controls a heating element of the appliance in a manner that causes the water and food to reach a desired final temperature of the food in equilibrium with the water bath, which in turn is in equilibrium with the air in the cavity.

An electric pot may have an improved relay installation position. The electric pot may include a supporter and a pot main body provided with a heater driven to provide heat through an electric connection with connection terminals. The supporter may include a relay part that optionally switches between a connection of the power supply to a third connection terminal and a disconnection of the power supply to the third connection terminal.

A solid-state radio frequency (SSRF) water heating apparatus is disclosed. In embodiments, the SSRF water heater includes a water tank, SSRF generator array and RF sensors enclosed within an RF-shielded cage. The SSRF array synthesizes RF signals in the microwave range and transmits the RF energy through the water tank, exciting and heating the water molecules without direct contact. The RF sensors at the opposite end of the tank sense residual RF energy not absorbed by the water. Control processors regulate the generation and transmission of the RF energy based on the sensed residual energy. The heated water and/or generated steam is piped to hot water dispensers, beverage makers, or steam ovens.

A kettle includes a receptacle, a handle, a cover and a spout, an electrical heating device configured to heat liquid in the receptacle, a switch for operating the electrical heating device, and a controller in electrical communication with the electrical heating device and the switch. The controller cooperates with a temperature sensor to control a temperature of the liquid. An electric base includes electrical components that are in electrical connection with the electrical heating device for providing electrical power to the electrical heating device for heating the liquid. A locking device is located on the receptacle and is movable between an unlocked position and a locked position to lock and unlock the receptacle to and from the base.