An electric cooker is configured to cook in a pressure state and a non-pressure state of an inner pot, thereby improving the cooking quality and convenience of use. The electric cooker includes a main body configured to accommodate an inner pot; a lid coupled to an upper portion of the main body and having a handle portion provided at one side of an upper portion of the lid to interwork with an inner pot locking unit configured to lock the inner pot; a pressure switching unit arranged to pass through the lid and configured to switch or maintain an opened or closed state to discharge internal steam from the inner pot according to a rotation of the handle portion; and a pressure-responsive operating unit which is selectively opened or closed according to a pressure inside the inner pot in a pressure cooking mode in which the pressure switching unit is closed.

A cooking device according to an exemplary embodiment of the present disclosure includes: a main body in which an inner pot is accommodated; a top plate provided in a lid cover coupled to the main body; a rotation cover coupled to the top plate to be rotatable along an edge of the top plate; a locking structure comprising a locking structure comprising an engagement protrusion configured to be engaged with a flange of the inner pot, wherein the locking structure is configured to linearly move, depending on a rotation angle of the rotation cover, between a locking position at which the engagement protrusion is located to overlap the flange of the inner pot in a vertical direction and an unlocking position spaced apart outward from the locking position in a radial direction.

Disclosed is a pressure cooker having a negative pressure vacuum state, including a body having an accommodating space, a cover, and a control structure. The control structure includes a sealing elastic member, a pressure relief valve, and a stop valve. The accommodating space includes a high pressure state, a micro-positive pressure state, and a negative pressure vacuum state, and when the accommodating space is in the high pressure state, the pressure relief valve is lifted upward by a high pressure thrust, to discharge high pressure gas in the accommodating space, and the stop valve is lifted upward under pressure to limit opening of the cover and is in a sealed state; and when the accommodating space is in the micro-positive pressure state or the negative pressure vacuum state, the pressure relief valve, the stop valve, the body, and the cover each are in the sealed state.

Disclosed is a pressure cooker having a negative pressure vacuum state, including a body having an accommodating space, a cover, and a control structure. The control structure includes a sealing elastic member, a pressure relief valve, and a stop valve. The accommodating space includes a high pressure state, a micro-positive pressure state, and a negative pressure vacuum state, and when the accommodating space is in the high pressure state, the pressure relief valve is lifted upward by a high pressure thrust, to discharge high pressure gas in the accommodating space, and the stop valve is lifted upward under pressure to limit opening of the cover and is in a sealed state; and when the accommodating space is in the micro-positive pressure state or the negative pressure vacuum state, the pressure relief valve, the stop valve, the body, and the cover each are in the sealed state.

A cooking device according to an exemplary embodiment of the present disclosure includes: a top plate covering an inner pot; and a steam discharge structure including a post including a steam discharge passage connected to interior of the inner pot, a moving member disposed on the post to surround at least a portion of a side surface of the post, and configured to move in a first direction which is perpendicular to a direction in which a top surface of the top plate extends, a steam blocking member disposed within the steam discharge passage through a portion of the moving member, and configured to open/close the steam discharge passage based on a movement of the steam blocking member in the first direction, and an elastic member configured to provide an elastic force to the steam blocking member based on a movement of the moving member in the first direction.

A cooking device according to an embodiment of the present disclosure includes: a first pressure control device including: a first lower cylinder including a first lower flow path communicating with an accommodation space in the inner pot; a first upper cylinder disposed on the first lower cylinder and comprising a first upper flow path; and a first weight disposed on the first upper cylinder and configured to open/close the first upper flow path, and a shutter structure configured to switch between an opening position for opening the first lower flow path and a closing position for closing the first lower flow path; and a second pressure control device including a second cylinder which includes a second flow path communicating with the accommodation space, and a second weight which is disposed on the second cylinder and configured to open/close the second flow path.

A cooking device according to an embodiment of the present disclosure includes: a first pressure control device including: a first lower cylinder including a first lower flow path communicating with an accommodation space in the inner pot; a first upper cylinder disposed on the first lower cylinder and comprising a first upper flow path; and a first weight disposed on the first upper cylinder and configured to open/close the first upper flow path, and a shutter structure configured to switch between an opening position for opening the first lower flow path and a closing position for closing the first lower flow path; and a second pressure control device including a second cylinder which includes a second flow path communicating with the accommodation space, and a second weight which is disposed on the second cylinder and configured to open/close the second flow path.

A safety cap assembly to be installed in the lid of a cooking appliance such as a pressure cooker and comprising a pressure release tube having a flange portion at its lower end, a cap securing nut with its outer diameter gradually increasing from the top end to the lower end and provided on the flange portion of the cap securing nut, and a safety cap unit which includes a mesh casing and a supporting bridge in a shallow reversed V-shape and is mounted to the lower portion of the pressure release tube. The safety cap assembly can be installed along with a vacuum adapter including a clogging ball inside to create a vacuum environment inside the pressure cooker.

A safety cap assembly to be installed in the lid of a cooking appliance such as a pressure cooker and comprising a pressure release tube having a flange portion at its lower end, a cap securing nut with its outer diameter gradually increasing from the top end to the lower end and provided on the flange portion of the cap securing nut, and a safety cap unit which includes a mesh casing and a supporting bridge in a shallow reversed V-shape and is mounted to the lower portion of the pressure release tube. The safety cap assembly can be installed along with a vacuum adapter including a clogging ball inside to create a vacuum environment inside the pressure cooker.

A cooking device includes a base, a housing, partition walls, a lid, a control module, an exhaust module, a connecting electrode and a heating module. The exhaust module includes an air-filled element, an air-extraction element, an inlet passage and an exhaust passage. The air-extraction element is used to exhaust fog or oil fume generated in the plurality of inner pots. The connecting electrode is arranged in a middle position of the base. The heating module includes: bottom heating units disposed different locations inside a storage compartment of the housing respectively and connected with the processor individually; second heating units arranged on the partition walls and connected with the connecting electrode by wires inside the partition walls; and third heating units arranged on the inner wall of the housing.