CN-116471717-B - Cooking utensil

CN116471717BCN 116471717 BCN116471717 BCN 116471717BCN-116471717-B

Abstract

The invention provides a cooking utensil which comprises a box body, a microwave assembly and an antenna device, wherein a cooking cavity is formed in the box body, a microwave outlet of the microwave assembly is communicated with the cooking cavity, the antenna device comprises a plate body, the plate body covers the microwave outlet of the microwave assembly, a plurality of gaps are formed in the plate body, and microwaves generated by the microwave assembly penetrate through the gaps and enter the cooking cavity.

Inventors

CHEN JIALIN
LI GUOBAO
YUAN CHONG
LIU JIN

Assignees

广东美的厨房电器制造有限公司

Dates

Publication Date: 20260508
Application Date: 20230414

Claims (6)

1.A cooking appliance, comprising: The box body is internally provided with a cooking cavity; The microwave assembly comprises a microwave outlet, microwaves generated by the microwave assembly are output through the microwave outlet, and the microwave outlet is communicated with the cooking cavity; the antenna device comprises a plate body, the plate body is covered on the microwave outlet, a plurality of gaps are formed in the plate body, and microwaves generated by the microwave assembly penetrate through the gaps and enter the cooking cavity; the plate body includes: A frame; the two ends of each partition board are connected with the two opposite sides of the frame body, the partition boards are distributed at intervals along the second direction, and a gap is formed between two adjacent partition boards; the partition plate is provided with a concave part, the concave parts extend from two sides of the partition plate to the direction of the central line of the partition plate, and hollowed-out parts are formed at two edges of each gap; The width of the gap is 0.07 lambda to 0.08 lambda along the second direction, the depth of the concave part is 0.06 lambda to 0.07 lambda, and the width of the concave part is 0.07 lambda to 0.08 lambda along the first direction, wherein lambda is the wavelength of microwaves emitted by the microwave component; the two sides of the partition board are provided with a plurality of concave parts, the concave parts are arranged at intervals along the first direction, and the first direction is perpendicular to the second direction.
2. The cooking appliance of claim 1, wherein the slit comprises a long hole formed in the plate body, the slit extends in a first direction and is formed in the plate body, and the plurality of slits are arranged on the plate body at intervals in a second direction.
3. The cooking appliance of claim 2, wherein a distance between centerlines of two adjacent slits in the second direction is 0.2λ to 0.3λ, where λ is a wavelength of microwaves emitted by the microwave assembly.
4. The cooking appliance of claim 2, wherein a distance between two adjacent recesses in the first direction is 0.15 λ to 0.2 λ, where λ is a wavelength of microwaves emitted by the microwave assembly.
5. The cooking appliance according to any one of claims 1 to 4, wherein a microwave inlet is opened at one side of the cabinet, the microwave assembly comprising: a magnetron for generating microwaves; the inlet of the waveguide tube is communicated with the magnetron, the outlet of the waveguide tube is the microwave outlet, and the plate body covers the outlet of the waveguide tube.
6. The cooking appliance of any one of claims 1 to 4, wherein the cooking appliance comprises a microwave oven.

Description

Cooking utensil Technical Field The invention relates to the technical field of household appliances, in particular to a cooking appliance. Background In the related art, a microwave oven breaks up microwaves generated from a magnetron by providing a rotary stirring plate, and then feeds the scattered microwaves into a cooking cavity. The structure of the rotary stirring plate is complex, the cost is high, the space in the microwave oven is occupied, and the market competitiveness of the product is affected. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cooking appliance. The invention provides a cooking utensil which comprises a box body, a microwave assembly and an antenna device, wherein a cooking cavity is formed in the box body, a microwave outlet of the microwave assembly is communicated with the cooking cavity, the antenna device comprises a plate body, the plate body covers the microwave outlet of the microwave assembly, a plurality of gaps are formed in the plate body, and microwaves generated by the microwave assembly are input into the cooking cavity through the gaps. The cooking utensil comprises a box body, wherein a cooking cavity is formed in the box body and used for placing food materials to be cooked. Specifically, a holding part may be provided in the cooking cavity, and before cooking the food material, the food material may be placed in the holding part, and then the holding part is placed in the cooking cavity to cook. Further, the cooking utensil further comprises a microwave assembly, and the microwave assembly can be used for generating microwaves, so that the microwaves generated by the microwave assembly are conveyed into the cooking cavity, and the microwave heating of food materials in the cooking cavity is realized. Specifically, the through hole can be formed in the box body of the cooking appliance and is communicated with the cooking cavity, and correspondingly, the microwave outlet of the microwave assembly is communicated with the through hole in the box body, namely, the microwave outlet of the microwave assembly is communicated with the cooking cavity, so that microwaves generated by the microwave assembly can be conveyed into the cooking cavity through the through hole in the box body, and microwave heating of food in the cooking cavity is realized. Further, the cooking appliance can further comprise an antenna device, and microwaves generated by the microwave assembly can be guided in the conduction process by the aid of the antenna device, so that microwaves entering the cooking cavity can generate uniform thermal fields in the cooking cavity, and the uniformity of heating of the microwaves on food in the cooking cavity, namely the heating effect of the microwaves, is guaranteed. Specifically, the antenna device may include a plate body, and a plurality of slots are formed in the plate body, and meanwhile, the plate body is covered on a microwave outlet of the microwave assembly, so that microwaves emitted by the microwave outlet can be refracted through the plurality of slots on the plate body, and a plurality of uniformly distributed microwaves are formed after entering the cooking cavity, so that a uniform thermal field is generated in the cooking cavity. It can be understood that the microwave generated by the microwave assembly is emitted from the microwave outlet to form a larger electromagnetic wave, the energy is concentrated in the central part of the electromagnetic wave, after the interference of a plurality of gaps on the plate body, a larger electromagnetic wave forms smaller electromagnetic waves at each gap at the rear of the plate body, that is, a larger electromagnetic wave is dispersed into a plurality of smaller electromagnetic waves, so that the energy of the microwave is dispersed along the arrangement direction of the gaps, and a more uniform thermal field can be formed in the cooking cavity, thereby achieving the purpose of improving the uniformity of microwave heating. Through setting up antenna device into the plate body and offer a plurality of gaps on the plate body to can make the microwave through antenna device can form even thermal field in the culinary art intracavity, with the homogeneity of guaranteeing the food heating to the culinary art intracavity. Compared with the prior art that the antenna is arranged in the form of the rotary stirring plate, the antenna device does not need to be provided with a driving mechanism for rotary driving of the stirring plate, so that the space occupied by the antenna for the cooking utensil can be reduced, the manufacturing cost of the cooking utensil is reduced, and the market competitiveness is improved. Specifically, the through hole on the box can be seted up on the diapire of box, simultaneously, the microwave subassembly sets up in the below of box, like this, can carr