An electric kettle includes: a body unit having a liquid container and a heating part; a lid unit configured to seal the liquid container via a sealing member; a spout; a liquid passage; an opening/closing valve; and a filter part. The liquid passage is configured such that an inside of the liquid container communicates with the spout via the lid unit. The opening/closing valve is configured to separate from the lid unit by being moved downward, thereby providing communication between the liquid container and the liquid passage, and to abut on the lid unit by being moved upward, thereby blocking the communication between the liquid container and the liquid passage. The filter part is provided in the liquid passage.

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.

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.

A kettle includes a kettle body, a top cap, a heating base, a filter cup and a filter cup lifting arrangement. The kettle body includes a water reservoir having a receiving cavity. The filter cup is adapted for storing food or beverage items and communicating with the receiving cavity. The filter cup lifting arrangement includes a supporting member supported in the water reservoir, a stopper and a lifting member movably extended between the supporting member and the stopper through the top cap. The lifting member is arranged to drive the filter cup to move between an immersion position and a lifted-up position, wherein in the immersion position, the filter cup is moved to immerse under the hot water stored in the receiving cavity, wherein in the lifted-up position, the filter cup is moved to lift up from the hot water.

The invention relates to food preparation methods. The technical result of implementing the invention consists in reducing the amount of energy and time necessary for heating water. The technical result is achieved by dividing water located in kitchenware after a certain a period of time into a portion to be heated and other water.

A filter assembly includes a vent system. The vent system includes an inner standpipe, a check valve, an outer standpipe and a cover. A sidewall of the check valve extends around the inner standpipe, and an end wall of the check valve is positioned over the inner standpipe. A sidewall of the cover extends around the outer standpipe, and an end wall of the cover is positioned over the outer standpipe.

A kettle includes a kettle body, a top cap, a heating base, a filter cup and a filter cup lifting arrangement. The kettle body includes a water reservoir having a receiving cavity. The filter cup is adapted for storing food or beverage items and communicating with the receiving cavity. The filter cup lifting arrangement includes a supporting member supported in the water reservoir, a stopper and a lifting member movably extended between the supporting member and the stopper through the top cap. The lifting member is arranged to drive the filter cup to move between an immersion position and a lifted-up position, wherein in the immersion position, the filter cup is moved to immerse under the hot water stored in the receiving cavity, wherein in the lifted-up position, the filter cup is moved to lift up from the hot water.

A filter assembly includes a vent system. The vent system includes an inner standpipe, a check valve, an outer standpipe and a cover. A sidewall of the check valve extends around the inner standpipe, and an end wall of the check valve is positioned over the inner standpipe. A sidewall of the cover extends around the outer standpipe, and an end wall of the cover is positioned over the outer standpipe.

A proportion-integration-derivation (PID) kettle structure includes: a kettle upper cover; a water filling cap, embedded into kettle upper cover; and a PID element, fixed onto inner side of water filling cap, to indicate usage time of a filter core in a kettle. The PID element includes: a guiding axis, disposed at an end inside the water filling cap; a pushing rack, sleeved around the guiding axis; a reset spring, disposed between pushing rack and guiding axis; an arc-shape rack pushing boss, disposed symmetrically on both sides of the pushing rack, used to push the pushing rack to move, when water filling cap is opened or closed; a driving gear, disposed at front end of the pushing rack, to act in cooperation with the pushing rack; and a driven gear, disposed below the driving gear, and connected to rotate along with the driving gear.