The present invention relates to a composite cooker having a plurality of heat sources. The cooker, according to one embodiment of the present disclosure, may comprise: a housing having a cavity formed therein; door connected to the housing so as to open/close the cavity; a MW heating module for radiating microwaves to the cavity; an IH heating module for radiating a magnetic field toward the cavity; and a shielding member for enabling the magnetic field generated by the TH heating module to pass through, while blocking the microwaves radiated from the MW heating module. The shielding member may comprise carbon fiber.

The present invention relates to a composite cooker having a plurality of heat sources. The cooker, according to one embodiment of the present disclosure, may comprise: a housing having a cavity formed therein; door connected to the housing so as to open/close the cavity; a MW heating module for radiating microwaves to the cavity; an IH heating module for radiating a magnetic field toward the cavity; and a shielding member for enabling the magnetic field generated by the TH heating module to pass through, while blocking the microwaves radiated from the MW heating module. The shielding member may comprise carbon fiber.

A microwave cooking appliance includes a door which covers a loading opening of a cooking chamber when closed, and has a profiled trap structure to form with an electrically conductive door flange a lambda quarter-wave trap that frames the loading opening. The trap structure includes a metal choke profile with an open face opposite the door flange, inner and outer metal tongues protruding into the open face laterally on an inside and outside, respectively. The metal tongues are connected electrically to the choke profile and separated from one another by a microwave entry slot covered by a microwave-transparent cover. The choke profile is framed laterally on the outside by a parallel overlap region which protrudes from the door flange and has a cover surface facing the door flange at a distance and made of electrically conductive material and having a same shape as a door flange region it covers.

A cooking household appliance includes a magnetron for generating microwaves, a muffle for receiving food to be cooked, a door for closing the muffle, and a microwave trap arranged between a muffle flange of the muffle and an arched base of the door. The microwave trap is flexible to adapt its contour to the arched door base and is fastened to the arched door base.

Methods and apparatus for reducing leakage of microwaves at a slit valve of a process chamber. A multi-frequency resonant choke around the slit valve prevents microwave energy from a band of frequencies from escaping from the slit valve. The multi-frequency resonant choke may have a sloping bottom surface or a serrated bottom surface to enable multiple frequencies to resonant in the choke, canceling a range of microwave frequencies at gaps formed by a slit valve gate.

Methods and apparatus for reducing leakage of microwaves at a slit valve of a process chamber. A multi-frequency resonant choke around the slit valve prevents microwave energy from a band of frequencies from escaping from the slit valve. The multi-frequency resonant choke may have a sloping bottom surface or a serrated bottom surface to enable multiple frequencies to resonant in the choke, canceling a range of microwave frequencies at gaps formed by a slit valve gate.

A microwave oven is provided herein having a cooking cavity, a dividing shelf for dividing the cooking cavity into at least two sub-cavities, and a door movable between an open and closed position for selectively providing and preventing access to the sub-cavities respectively. The door is provided with a choke frame configured to communicate with the dividing shelf in the closed position so as to attenuate microwave transmission between the sub-cavities.

Disclosed herein are a cooking apparatus including a main body including a cooking compartment configured to cook food using microwaves, and a door configured to open or close the cooking compartment, wherein the door includes a door frame in which an opening is formed so that the cooking compartment is visible therethrough, and a shielding plate including a substrate and a multi-shielding layer, with which the substrate is coated to prevent microwaves in the cooking compartment from leaking to an outside, and coupled at the opening. The door of the cooking apparatus allows an inside of the cooking compartment to be better seen from the outside.

An oven door for a microwave oven or an appliance with microwave heating function. The door includes a door frame enclosing the door and glass panels inside and/or in front of the frame. The frame includes a wave choke arranged between a support element and a cover element. The cover element is fixed or fixable at the support element and forms an outer portion of an inner side of the oven door. The cover element is made of a high temperature resistant non-metallic material and covers an outer portion of an inner side of an inner glass panel. The inner glass panel is clamped between the cover element and the support element and/or the wave choke. A sealing element made of a high temperature resistant textile material is arranged between the cover element and the inner glass panel. A corresponding chassis is provided for the oven or the appliance.

A microwave oven (2) with a full glass door (12) for preventing microwave leakage from the cooking cavity (6) of the microwave oven (2) is provided. The front plate (8) of the cooking cavity (6) has a conductive material (10), such as a rubber with conductive filler. The inner glass surface (16) of the door (12) has a conductive coating that creates a ground loop with the conductive material (10) on the front plate (8) of the cooking cavity (6) to prevent microwave leakage from the cooking cavity (6).