A microwave appliance includes a microwave facility which generates microwaves and introduces the microwaves into a cooking compartment and which is operable with at least two configurations to generate different field distributions of the microwaves in the cooking compartment. A temperature acquisition facility contactlessly acquires a heat distribution in the cooking compartment, and a data processing facility identifies a non-food to be cooked region in the cooking compartment from the acquired heat distribution. A control facility sets a current configuration of the microwave facility and operates the microwave facility The control facility selects or sets at least one of the configurations of the microwave facility with regard to reducing a power of the microwaves in the identified non-food to be cooked region.

Disclosed are a heating device (100) and a refrigerator. The heating device (100) includes a cylinder body (110), a door body (120), an electromagnetic generating module (161) and a radiating antenna (150). A heating chamber (111) having a pick-and-place opening is defined in the cylinder body (110), and the heating chamber (111) is configured to place an object to be processed. The door body (120) is disposed at the pick-and-place opening and configured to open and close the pick-and-place opening. The electromagnetic generating module (161) is configured to generate an electromagnetic wave signal. The radiating antenna (150) is disposed in the cylinder body (110) and electrically connected with the electromagnetic generating module (161) to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. Since the peripheral edge of the radiating antenna (150) is formed by smooth curves, the distribution area of the electromagnetic waves in a plane parallel to the radiating antenna (150) may be increased, and the electromagnetic waves may be prevented from being too concentrated, thereby avoiding the problems of local overheating and uneven temperature of food.

Disclosed are a heating device (100) and a refrigerator. The heating device (100) includes a cylinder body (110), a door body (120), an electromagnetic generating module (161) and a radiating antenna (150). A heating chamber (111) having a pick-and-place opening is defined in the cylinder body (110), and the heating chamber (111) is configured to place an object to be processed. The door body (120) is disposed at the pick-and-place opening and configured to open and close the pick-and-place opening. The electromagnetic generating module (161) is configured to generate an electromagnetic wave signal. The radiating antenna (150) is disposed in the cylinder body (110) and electrically connected with the electromagnetic generating module (161) to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. Since the peripheral edge of the radiating antenna (150) is formed by smooth curves, the distribution area of the electromagnetic waves in a plane parallel to the radiating antenna (150) may be increased, and the electromagnetic waves may be prevented from being too concentrated, thereby avoiding the problems of local overheating and uneven temperature of food.

The present invention discloses an electromagnetic wave generating system, including an electromagnetic generating module, a radiating assembly and a matching unit connected in series between the electromagnetic generating module and the radiating assembly. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating assembly includes one or more radiating units and is configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The matching unit includes a first matching module, a second matching module and a fixed value inductor. The input end of the first matching module is configured to be electrically connected with the electromagnetic generating module. The fixed value inductor is connected in series between the output end of the first matching module and the radiating assembly. The input end of the second matching module is connected in series between the output end of the first matching module and the inductor, and the output end of the second matching module is configured to be grounded. The first matching module and the second matching module respectively include a plurality of parallel branches to realize a load combination that is several times the sum of the number of the parallel branches of the two matching modules.

The present invention discloses an electromagnetic wave generating system, including an electromagnetic generating module, a radiating assembly and a matching unit connected in series between the electromagnetic generating module and the radiating assembly. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating assembly includes one or more radiating units and is configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The matching unit includes a first matching module, a second matching module and a fixed value inductor. The input end of the first matching module is configured to be electrically connected with the electromagnetic generating module. The fixed value inductor is connected in series between the output end of the first matching module and the radiating assembly. The input end of the second matching module is connected in series between the output end of the first matching module and the inductor, and the output end of the second matching module is configured to be grounded. The first matching module and the second matching module respectively include a plurality of parallel branches to realize a load combination that is several times the sum of the number of the parallel branches of the two matching modules.

Disclosed is a heating device (100), including a cylinder body (110) provided with a pick-and-place opening, a door body (120) configured to open and close the pick-and-place opening, and an electromagnetic generating system. At least a part of the electromagnetic generating system is disposed in the cylinder body (110) or accessed into the cylinder body (110), so as to generate electromagnetic waves in the cylinder body (110) to heat an object to be processed. The heating device (100) further includes plastic components (130, 140) disposed on a propagation path of the electromagnetic waves. The plastic components (130, 140) are made of a non-transparent PP material to reduce the electromagnetic loss of the electromagnetic waves on the plastic components (130, 140) so as to indirectly increase the ratio of the electromagnetic waves acting on the object to be processed, thereby increasing the heating rate of the object to be processed.

Disclosed is a heating device (100), including a cylinder body (110) provided with a pick-and-place opening, a door body (120) configured to open and close the pick-and-place opening, and an electromagnetic generating system. At least a part of the electromagnetic generating system is disposed in the cylinder body (110) or accessed into the cylinder body (110), so as to generate electromagnetic waves in the cylinder body (110) to heat an object to be processed. The heating device (100) further includes plastic components (130, 140) disposed on a propagation path of the electromagnetic waves. The plastic components (130, 140) are made of a non-transparent PP material to reduce the electromagnetic loss of the electromagnetic waves on the plastic components (130, 140) so as to indirectly increase the ratio of the electromagnetic waves acting on the object to be processed, thereby increasing the heating rate of the object to be processed.

Disclosed are an electromagnetic wave generating system and a heating device. The electromagnetic wave generating system includes an electromagnetic generating module, a radiating assembly and a matching unit connected in series between the electromagnetic generating module and the radiating assembly. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating assembly includes one or more radiating units and is configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The matching unit includes a first matching module. The first matching module includes a plurality of fixed value inductors connected in series between the electromagnetic generating module and the radiating assembly, and a plurality of parallel branches, wherein each parallel branch of the first matching module includes a fixed value capacitor and a switch connected in series. The input ends of the plurality of parallel branches of the first matching module are respectively connected in series between two adjacent inductors and between an end inductor and the radiating assembly, and the output ends thereof are all configured to be grounded, so as to match a load more accurately after receiving an adjusting command

Disclosed are an electromagnetic wave generating system and a heating device. The electromagnetic wave generating system includes an electromagnetic generating module, a radiating assembly and a matching unit connected in series between the electromagnetic generating module and the radiating assembly. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating assembly includes one or more radiating units and is configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The matching unit includes a first matching module. The first matching module includes a plurality of fixed value inductors connected in series between the electromagnetic generating module and the radiating assembly, and a plurality of parallel branches, wherein each parallel branch of the first matching module includes a fixed value capacitor and a switch connected in series. The input ends of the plurality of parallel branches of the first matching module are respectively connected in series between two adjacent inductors and between an end inductor and the radiating assembly, and the output ends thereof are all configured to be grounded, so as to match a load more accurately after receiving an adjusting command

Provided is a heating device. The heating device includes a cylinder body, a door body, an electromagnetic generating module and a radiating antenna. A heating chamber having a pick-and-place opening is defined in the cylinder body, and the heating chamber is configured to place an object to be processed. The door body is disposed at the pick-and-place opening and configured to open and close the pick-and-place opening. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating antenna is disposed in the cylinder body and electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The radiating antenna is configured to arch in a direction close to the object to be processed so as to eliminate the influence of an edge effect on the distribution uniformity of the electromagnetic waves in the heating chamber, and increase the energy density and distribution range of the electromagnetic waves while solving the problem of the production cost and improving the distribution uniformity of the electromagnetic waves.