A microwave cooking appliance for increasing visibility into the cooking cavity. The microwave cooking appliance may include a door. The door may include a conductive mesh layer. The door may include a frame supporting the conductive mesh layer. The door may include a conductive and/or sealing engagement between the conductive mesh layer and the frame. The door may include a leak detection device. The leak detection device may be adjacent the conductive and/or sealing engagement. The door may include a user interface display and/or a touch screen.

A cooking pot for pressure cooking or frying is disclosed, comprising a housing 122 accommodating a pan 112 to hold food items to be cooked, and one or more heating devices to heat the pan. A lid 102 covers the top side of the housing 122 and creates an enclosure 124 above the pan 112. The one or more heating devices include a microwaves generating device 202 located remote from the airtight enclosure 124. A microwave guide 210 is provided to transfer microwaves generated by the remotely located microwaves generating device 202 to the pan 112. A window 110 is provided for passage of the microwaves to the pan 112, and includes a microwave transparent material, which can withstand pressure in the enclosure 124 when the cooking pot is configured for pressure cooking. A flame stove 204 is provided below the pan 112 for direct heating of the pan 112.

A household microwave appliance includes a cooking chamber exposable to microwaves. A mode variation apparatus modifies a field distribution of the microwaves in the cooking chamber, and a microwave leakage sensor detects a microwave leakage radiation exiting from the cooking chamber. The household microwave appliance is designed to vary setting values of the mode variation apparatus, and to set an operating point of the mode variation apparatus based on a quantity of measurement data of the detected microwave leakage radiation resulting from a variation.

The present invention provides a microwave leakage detection device for use in an explosion-proof area. A microwave leakage detection device 1 includes an explosion-proof sensor 10a with an explosion-proof structure capable of detecting an increase in at least one of an electric field and a magnetic field, and a detection unit 20 configured to detect a microwave leakage in accordance with detection of an increase in at least one of an electric field and a magnetic field by the explosion-proof sensor 10a. The explosion-proof sensor 10 is an inductive explosion-proof proximity sensor, and includes a detection coil 11 and an internal circuit 12.

In a method for detecting spark-overs in a treatment compartment of a household microwave appliance during a microwave treatment process, a setting value of a microwave operating parameter can be varied during the microwave treatment process. During the microwave treatment process, measurement values of a leakage radiation are measured several times in succession under same setting values of the microwave operating parameter, and a spark-over is detected when a fluctuation range of the measurement values achieves or exceeds a predetermined fluctuation range.

In a method for detecting a standstill of a rotatable microwave distribution apparatus of a household microwave appliance, while microwaves are being supplied into a cooking compartment of the household microwave appliance, a microwave leakage radiation for angle-dependent recurring fluctuations is monitored and an action in the absence of such fluctuations being detected.

An intelligent cooking machine is disclosed including a sealed cavity housing a cooking pot assembly which consists of a cooking pot, a stove core for heating the cooking pot, and a lid capable of covering the pot opening of the cooking pot. When the cooking pot containing ingredients rotates and is hermetically covered by the lid above it, at least one set of microwave generators installed on the lid feeds microwaves into the ingredients within the pot. Based on the original heating method, the invention incorporates a microwave heating component installed on the lid, which does not require daily removal. The microwaves generated by the microwave heating component are directly or through at least one waveguide tube fed into the ingredients that are being stirred and rotating with the pot.