An article of manufacture includes a wall portion having a wall inner surface and a wall outer surface, a base portion having a base inner surface and a base outer surface, at least a portion of the wall portion and the base portion forming a vessel to retain fluid therein, at least part of the base portion configured to receive heat, and a plurality of shaped portions with at least three sides extending above, each shaped portion of the base inner surface including at least three sides and polygonal shaped tops, each of the plurality of shaped portions capable of supplying heat from the sides to fluid adjacent to the sides, the plurality of shaped portions including the polygonal shaped tops to induce creation of a plurality of hexagonal convection cells in contact with a surface of the fluid which increases heat transfer from the heating source to the fluid.

Provided is a cooking appliance. The cooking appliance includes a cooking body, an inner pot, and a separation device. The cooking body defines an accommodation cavity. The inner pot defines a cooking cavity. The separation device has a liquid storage cavity and a backflow channel. The backflow channel has a first liquid flowing portion and a second liquid flowing portion. The liquid storage cavity is in communication with the backflow channel through the first liquid flowing portion. The cooking cavity is in communication with the backflow channel through the second liquid flowing portion. The separation device has a liquid inlet portion, and the liquid storage cavity is in communication with the cooking cavity through the liquid inlet portion. The separation device is provided with a flow guide portion at a bottom of the separation device.

A vacuum electric kettle includes a vacuum layer disposed between a liner and an outer shell with a heating disc component disposed inside. A matched electrical connector is disposed between the heating disc component and the base that includes a disc body compounded with a heating body. A seal ring clamping platform is arranged at the edge of the disc body. At least two elastic supporting legs are integrated with the disc body and disposed below the clamping platform. A supporting leg locating ring and a seal ring limiting rib are disposed on the liner with a seal ring between the limiting rib and the clamping platform. The heating disc component and the kettle body are positioned in a matched mode through the elastic supporting legs and the supporting leg locating ring. No welding is required between the heating disc component and the kettle body of the vacuum electric kettle.

An article of manufacture that includes a wall portion having a wall inner surface and a wall outer surface. The article of manufacture also includes a base portion having a base inner surface and a base outer surface. At least a portion of the wall portion and the base portion form a vessel to retain a fluid therein. The article of manufacture also has a shaped portion of the base inner surface and/or a shaped portion of the wall inner surface. A first section of the shaped portion may have a first surface area in thermal contact with the fluid. A second section of the shaped portion may have a second surface area in thermal contact with the fluid. The first and second surface areas may be different thereby inducing convection within the fluid that increases heat transfer from the heat source to the fluid.

The present invention provides a kettle that has a plurally of chambers and which is configured to boil water in one chamber and condense the steam therefrom in another chamber or other part of the kettle. The kettle may have a heating element in one of the chambers that raises the temperature of the water in that chamber to boiling point and the heating of the water is carried out in stages, each stage elevating the temperature farther and being carried out in a successive one of the chambers. The kettle allows water to be boiled far more efficiently than in conventional kettles and can have a significant impact not only in reducing house-hold carbon footprint but also in reducing demand spikes in electricity usage.

There is disclosed herein an appliance to heat a liquid, the appliance including: a vessel to receive the liquid to be heated, the vessel having a base, and a side wall extending upwardly from the base, with the base and side wall at least partly enclosing a chamber within which the liquid is heated; and a heating element for conductive heating of the base and the liquid in the chamber, wherein the base includes a floor and a raised portion extending from the floor into the chamber, the floor having a major surface to contact the liquid, and the raised portion having at least one minor surface to contact the liquid, the at least one minor surface being inclined relative to the major surface to promote movement of one or more bubbles, formed by heating of the liquid, away from the floor and into the chamber.

A stockpot has an outer pot and an inner pot. The outer pot has an outer pot body and an insulating pot bottom. The insulating pot bottom is connected to the outer pot body and has a connecting base, a flame guiding block, and multiple insulating mounts. The flame guiding block is mounted on the connecting base. The insulating mounts are mounted on the connecting base around the flame guiding block. The inner pot is mounted in the outer pot and has an inner pot body, two handles, and an inner pot bottom. The inner pot body is mounted in the outer pot body and has an abutting ring abutting a top of the outer pot body. The handles are securely connected to the abutting ring. The inner pot bottom is securely connected to the inner pot body above the insulating pot bottom of the outer pot.

A device for use in the preparation of beverages, for managing the draw-off of water from a source of hot water comprises a chamber having a base, a cylindrical wall mounted on the base and a top section. An inlet and a return outlet are mounted in the base, and both the inlet and the return outlet are connectable to a source of hot water. Three draw-off outlets are also mounted in the base. The return outlet consists of a hollow tube section, which passes through the base to form a stand pipe. In use, hot water is introduced into the chamber through inlet and the chamber is orientated such that return outlet is positioned above the inlet. The inlet flow rate is equal to or greater than the draw-off flow rate, and any excess volume of hot water in the chamber is returnable, to the source of hot water, through the return outlet, thereby creating a constant head of water above the draw-off outlets.

An electric kettle having a handle coupled to one end of a body is proposed. The electric kettle includes: a body receiving water or food therein; a lid configured to shield an open upper side of the body; a base provided at a lower side of the body and configured to support the body; a spout provided on an upper end of the body and guiding a discharge of the water or food contained inside the body; and a handle fastened to the upper end of the body and configured to be held by hand. According to the configuration of the electric kettle, there are advantages of providing a compact and aesthetic appearance and improving assemblability.

Disclosed are a heating control circuit and a heating equipment. The control module is respectively connected with the zero-crossing detection circuit, the thyristor switch circuit and the temperature control circuit. The time is preset in the control module. If the heating control circuit is powered off, it will be powered on again within the preset time as the signal collected by the zero-crossing detection circuit triggers the conduction of the thyristor switch circuit to start the heating component, and resume the heat preservation mode, by which the body memory function is implemented; even if the heating control circuit is not powered on again within the preset time after the heating control circuit is powered off, the water temperature is detected through the temperature control circuit to realize the water temperature memory function.