US-12616336-B2 - Cooking device

US12616336B2US 12616336 B2US12616336 B2US 12616336B2US-12616336-B2

Abstract

A cooking device is provided. The cooking device includes: a housing having a cooking cavity; a gas circulation apparatus disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate; and a heating apparatus disposed in the cooking cavity and adjacent to air holes. The gas circulation apparatus includes a gas driving part. The gas driving part includes a driving cover body and a fan blade part rotatably disposed in the driving cover body. The driving cover body has air holes provided on the side surface of the driving cover body facing towards the cooking cavity. The heating apparatus includes an outer peripheral heating apparatus, and the area enclosed by the outer peripheral heating apparatus accounts for at least half of the cross-sectional area of the cooking cavity.

Inventors

Jaeman Cho
Wei Li
Qihong Ling
Gang Liu

Assignees

GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD.
MIDEA GROUP CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20220517
Priority Date: 20210517

Claims (20)

1 . A cooking device, comprising: a housing having a cooking cavity; a gas circulation apparatus disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate, wherein the gas circulation apparatus comprises a gas driving part, wherein the gas driving part comprises a driving cover body and a fan blade part rotatably disposed in the driving cover body, the driving cover body having a plurality of air holes being provided on a side surface of the driving cover body facing towards the cooking cavity; and a heating apparatus disposed in the cooking cavity and adjacent to the plurality of air holes, wherein the heating apparatus comprises an outer peripheral heating apparatus, an area enclosed by the outer peripheral heating apparatus accounting for at least half of a cross-sectional area of the cooking cavity, wherein the plurality of air holes comprise return air holes and outlet air holes disposed around the return air holes, wherein the outlet air holes comprise: a first ring of outlet air holes; a second ring of outlet air holes, the first ring of outlet air holes being disposed around the second ring of outlet air holes; and a third ring of outlet air holes, the second ring of outlet air holes being disposed around the third ring of outlet air holes, wherein: an area of each air hole in the first ring of outlet air holes is smaller than an area of each air hole in the second ring of outlet air holes; and/or an area of each air hole in the third ring of outlet air holes is smaller than the area of each air hole in the second ring of outlet air holes.
2 . The cooking device according to claim 1 , wherein the area enclosed by the outer peripheral heating apparatus accounts for one-half to three-quarters of the cross-sectional area of the cooking cavity.
3 . The cooking device according to claim 2 , wherein the heating apparatus further comprises an inner peripheral heating apparatus surrounded by the outer peripheral heating apparatus, the inner peripheral heating apparatus being connected in series or in parallel with the outer peripheral heating apparatus.
4 . The cooking device according to claim 3 , wherein each of the outer peripheral heating apparatus and the inner peripheral heating apparatus is arranged around a central axis of the cooking cavity.
5 . The cooking device according to claim 1 , wherein a total area of the plurality of air holes accounts for at least half of the cross-sectional area of the cooking cavity.
6 . The cooking device according to claim 5 , wherein the total area of the plurality of air holes accounts for one-half to two-thirds of the cross-sectional area of the cooking cavity.
7 . The cooking device according to claim 1 , wherein an area of each air hole in the return air holes is smaller than the area of each air hole in the second ring of outlet air holes.
8 . The cooking device according to claim 1 , wherein the driving cover body comprises a driving cover body bottom wall, wherein the driving cover body bottom wall comprises a driving cover body central bottom wall and a driving cover body peripheral bottom wall disposed around the driving cover body central bottom wall, at least a part air holes of the first ring of outlet air holes and the second ring of outlet air holes being disposed at the driving cover body peripheral bottom wall, and at least a part air holes of the third ring of outlet air holes and the return air holes being disposed at the driving cover body central bottom wall.
9 . The cooking device according to claim 8 , wherein: the driving cover body central bottom wall is a flat bottom wall; the driving cover body peripheral bottom wall is a divergent bottom wall; and a small diameter end of the driving cover body peripheral bottom wall is connected to the driving cover body central bottom wall.
10 . The cooking device according to claim 9 , wherein the heating apparatus further comprises an inner peripheral heating apparatus surrounded by the outer peripheral heating apparatus, an interface between the second ring of outlet air holes and the third ring of outlet air holes corresponding to the inner peripheral heating apparatus.
11 . The cooking device according to claim 1 , wherein a ratio of a total area of the outlet air holes and a total area of the return air holes ranges from three to one-quarter.
12 . The cooking device according to claim 1 , wherein the driving cover body comprises a driving cover body top wall and a driving cover body side wall, wherein: the driving cover body side wall is a divergent side wall; a small diameter end of the driving cover body side wall is connected to the driving cover body top wall; and a large diameter end of the driving cover body side wall faces away from the driving cover body top wall.
13 . The cooking device according to claim 12 , wherein the driving cover body side wall has a virtual extension surface extending towards the cooking cavity, wherein a range formed by deflecting a predetermined small angle β towards two sides of the virtual extension surface with the large diameter end of the driving cover body side wall as a fulcrum is a preset range, and wherein a peripheral edge of the heating apparatus does not exceed the preset range.
14 . The cooking device according to claim 13 , wherein the small angle β satisfies a relationship: 0°<β≤10°.
15 . The cooking device according to claim 12 , wherein an included angle γ between the driving cover body side wall and a cross-section of the cooking cavity ranges from 15° to 75°.
16 . The cooking device according to claim 1 , wherein when driven by the gas driving part, gas has a first part flowing in a first direction and a second part flowing in a second direction, one of the first direction and the second direction being a circumferential direction of the gas driving part, and another of the first direction and the second direction being a radial direction of the gas driving part.
17 . The cooking device according to claim 1 , wherein an area of each air hole in the third ring of outlet air holes is smaller than the area of each air hole in the second ring of outlet air holes.
18 . A cooking device, comprising: a housing having a cooking cavity; a gas circulation apparatus disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate, wherein the gas circulation apparatus comprises a gas driving part, wherein the gas driving part comprises a driving cover body and a fan blade part rotatably disposed in the driving cover body, the driving cover body having a plurality of air holes being provided on a side surface of the driving cover body facing towards the cooking cavity; and a heating apparatus disposed in the cooking cavity and adjacent to the plurality of air holes, wherein the heating apparatus comprises an outer peripheral heating apparatus, an area enclosed by the outer peripheral heating apparatus accounting for at least half of a cross-sectional area of the cooking cavity, wherein the plurality of air holes comprise return air holes and outlet air holes disposed around the return air holes, wherein the outlet air holes comprise: a first ring of outlet air holes; a second ring of outlet air holes, the first ring of outlet air holes being disposed around the second ring of outlet air holes; and a third ring of outlet air holes, the second ring of outlet air holes being disposed around the third ring of outlet air holes, wherein an air pressure of gas blown out through the first ring of outlet air holes is greater than an air pressure of gas blown out through the second ring of outlet air holes.
19 . The cooking device according to claim 18 , wherein the area enclosed by the outer peripheral heating apparatus accounts for one-half to three-quarters of the cross-sectional area of the cooking cavity.
20 . The cooking device according to claim 18 , wherein a total area of the plurality of air holes accounts for at least half of the cross-sectional area of the cooking cavity.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS The present disclosure is a national phase application of International Application No. PCT/CN2022/093387, filed on May 17, 2022, which claims priority to Chinese Patent Application No. “202110535223.8” filed on May 17, 2021, the entire contents of which are incorporated herein by reference. FIELD The present application relates to the field of kitchen appliances, and more particularly to a cooking device. BACKGROUND In the related art, in a microwave oven with an air frying function, the structural layout is unreasonable, resulting in uneven heat distribution, poor heat circulation, and poor food cooking coloring effect. SUMMARY The present application aims to solve at least one of the problems existing in the prior art. To this end, one object of the present application is to provide a cooking device capable of forming a large area of heating in a cooking cavity, improving heating evenness. A cooking device according to an embodiment of the present application includes a housing, a gas circulation apparatus and a heating apparatus. The housing has a cooking cavity. The gas circulation apparatus is disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate. The gas circulation apparatus includes a gas driving part. The gas driving part includes a driving cover body and a fan blade part rotatably disposed in the driving cover body, and the driving cover body has air holes being provided on a side surface of the driving cover body facing towards the cooking cavity. The heating apparatus is disposed in the cooking cavity and adjacent to air holes. The heating apparatus includes an outer peripheral heating apparatus, and an area enclosed by the outer peripheral heating apparatus accounts for at least half of a cross-sectional area of the cooking cavity. A cooking device according to an embodiment of the present application, by forming air holes at the driving cover body, and accounting the area enclosed by the outer peripheral heating apparatus for at least half of the cross-sectional area of the cooking cavity, a large area of heating may be formed in the cooking cavity, food can be cooked in a greater range, and hot air evenness can be improved; and the air holes cooperate with the heating apparatus to make hot air and barbecue better. In addition, the above cooking device according to the embodiments of the present application may further have the following additional embodiments: According to some embodiments of the present application, the area enclosed by the outer peripheral heating apparatus accounts for one-half to three-quarters of the cross-sectional area of the cooking cavity. According to some embodiments of the present application, the heating apparatus further includes an inner peripheral heating apparatus surrounded by the outer peripheral heating apparatus, and the inner peripheral heating apparatus is connected in series or in parallel with the outer peripheral heating apparatus. According to some embodiments of the present application, each of the outer peripheral heating apparatus and the inner peripheral heating apparatus is arranged around a central axis of the cooking cavity. According to some embodiments of the present application, a total area of air holes accounts for at least half of the cross-sectional area of the cooking cavity. According to some embodiments of the present application, the total area of air holes accounts for one-half to two-thirds of the cross-sectional area of the cooking cavity. According to some embodiments of the present application, air holes include return air holes and outlet air holes disposed around the return air holes. According to some embodiments of the present application, the outlet air holes include a first ring of outlet air holes, a second ring of outlet air holes and a third ring of outlet air holes. The first ring of outlet air holes is disposed around the second ring of outlet air holes, and the second ring of outlet air holes is disposed around the third ring of outlet air holes. An area of each air hole in the first ring of outlet air holes is smaller than an area of each air hole in the second ring of outlet air holes, and/or an area of each air hole in the third ring of outlet air holes is smaller than the area of each air hole in the second ring of outlet air holes. According to some embodiments of the present application, the outlet air holes include a first ring of outlet air holes, a second ring of outlet air holes and a third ring of outlet air holes. The first ring of outlet air holes is disposed around the second ring of outlet air holes, and the second ring of outlet air holes is disposed around the third ring of outlet air holes. An air pressure of gas blown out through the first ring of outlet air holes is greater than an air pressure of gas blown out through the second ring of outlet air holes. According to some embodiments of the present application,