Air inlet structure and combined cooking equipment

Abstract

The present invention discloses an air inlet structure and a combined cooking device. The air inlet structure is used for the combined cooking device. The air inlet structure includes an air inlet net and a peripheral wall. The peripheral wall is arranged on the lower surface of the air inlet net. The air inlet net is provided with an air inlet of the air inlet net. A mesh structure is arranged in the air inlet of the air inlet net. The mesh structure includes a plurality of circumferential ribs. The plurality of circumferential ribs are annular and concentrically spaced. The circumferential ribs are in an arc shape convex upward toward the center of the air inlet of the air inlet net. In the air inlet structure according to the embodiment of the present invention, since the plurality of circumferential ribs are concentrically arranged and the circumferential ribs are in an arc shape convex upward toward the center of the air inlet structure, when the air flow enters the air inlet structure from the air inlet of the air inlet net, the incoming air flow can flow from the periphery to the center, and further makes the negative pressure area more inclined to be short and wide, improving the smoking effect of the range hood under the same air volume.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to an air inlet structure and a combined cooking device. Background Art

[0002] In the related art, for a combined stove with a blower located below the cooking range, its air inlet is near the height of the cabinet plane. Generally, there is a mesh structure at the air inlet. On the one hand, it serves as a partition between the inside and outside of the range hood, making the range hood more beautiful; on the other hand, it prevents users from contacting the internal components of the range hood to avoid the risk of possible mechanical damage. The design of the air inlet net will affect the external flow field of the range hood, thus affecting the smoking effect of the range hood. Therefore, it is necessary to provide an air inlet structure that can reduce the intake resistance and optimize the smoking effect under the conditions of meeting safety regulations and aesthetics. Summary of the Invention

[0003] An embodiment of the present invention provides an air inlet structure and a combined cooking device.

[0004] The air inlet structure of the embodiment of the present invention is used for a combined cooking device. The air inlet structure includes an air inlet net and a peripheral wall. The peripheral wall is arranged on the lower surface of the air inlet net. The air inlet net is provided with an air inlet of the air inlet net, and a mesh structure is arranged in the air inlet of the air inlet net. The mesh structure includes a plurality of circumferential ribs. The plurality of circumferential ribs are annular and concentrically spaced. The circumferential ribs are in an arc shape convex upward toward the center of the air inlet of the air inlet net.

[0005] In the air inlet structure of the embodiment of the present invention, since the plurality of circumferential ribs are concentrically arranged and the circumferential ribs are in an arc shape convex upward toward the center of the air inlet structure, when the air flow enters the air inlet structure from the air inlet of the air inlet net, the intake air flow can flow from the periphery to the center, and further make the negative pressure area layout more biased toward short and wide, improving the smoking effect of the range hood under the same air volume.

[0006] In some embodiments, the air inlet of the air inlet net is circular, and the scanning line of the circumferential rib is a circle and concentric with the projection circle of the air inlet of the air inlet net; or

[0007] The air inlet of the air inlet net is elliptical, and the scanning line of the circumferential rib is an ellipse and concentric with the projection ellipse of the air inlet of the air inlet net.

[0008] In this way, the negative pressure area is made as uniform as possible along the center of the air inlet of the air inlet net to ensure the smoking effect of cooking utensils at different positions and meet the aesthetic requirements at the same time.

[0009] In some embodiments, the mesh structure includes a plurality of radial ribs, and each radial rib connects the plurality of circumferential ribs.

[0010] In this way, the plurality of circumferential ribs are supported and connected by the radial ribs.

[0011] In some embodiments, the inlet of the air inlet net is circular, and the scanning line of the radial rib is a straight line and coincides with the radius of the projection circle of the air inlet of the air inlet net; or

[0012] the inlet of the air inlet net is elliptical, and the scanning line of the radial rib is a straight line and coincides with the major axis or minor axis of the projected ellipse of the air inlet of the air inlet net.

[0013] In this way, the circumferential ribs are supported by the radial ribs, while meeting the aesthetic requirements.

[0014] In some embodiments, the circumferential ribs are rounded at the front end direction of the flow field; and / or,

[0015] the radial ribs are rounded at the front end direction of the flow field.

[0016] In this way, it can adapt to the changes in different air volume gears and the incoming flow direction of the back pressure to reduce the flow separation in the front end direction of the flow field, thereby reducing the resistance of the oil fume flow and reducing the generation of local noise.

[0017] In some embodiments, the circumferential ribs are chamfered obliquely at the rear end direction of the flow field; and / or,

[0018] the radial ribs are chamfered obliquely at the rear end direction of the flow field.

[0019] In this way, chamfering obliquely at the rear end direction of the flow field can reduce the cross-sectional area at the end, reduce the scale of the shedding vortex generated by the fluid, thereby reducing the resistance of the oil fume flow and reducing the generation of local noise.

[0020] In some embodiments, a plurality of circumferential wall air inlet groups are provided on the circumferential wall, and each circumferential wall air inlet group includes a plurality of circumferential wall air inlets arranged in a honeycomb shape.

[0021] In this way, the intake resistance of the oil fume is further reduced, and the effect of assisting in gathering the oil fume is achieved.

[0022] In some embodiments, the air inlet axis of the air inlet net points to the range of the cooking appliance within the angular region formed by the range of the circumferential wall air inlet group.

[0023] In this way, the circumferential wall air inlet group can better achieve the effect of assisting in gathering the oil fume.

[0024] In some embodiments, the angular region covers the range of the cooking appliance and is not less than a preset degree of the edge of the cooking utensil placed on the cooking appliance.

[0025] In this way, it is avoided that the opening range of the circumferential wall air inlet group is too small, thereby ensuring the effect of the circumferential wall in assisting in gathering the oil fume.

[0026] In some embodiments, the air inlet net is installed on the peripheral wall by a rotary buckle.

[0027] In this way, the installation of the air inlet net and the peripheral wall is simple and convenient.

[0028] In some embodiments, a buckle is provided at the lower end of the peripheral wall so that the air inlet structure is installed on the combined cooking device through the buckle.

[0029] In this way, the installation of the air inlet structure and the combined cooking device is simple and convenient.

[0030] The combined cooking device according to an embodiment of the present invention includes a panel and the air inlet structure according to any one of the above embodiments. A through hole is formed in the panel, and the air inlet structure is disposed at the through hole in a liftable manner.

[0031] In the combined cooking device according to an embodiment of the present invention, since a plurality of circumferential ribs are concentrically arranged and the circumferential ribs are in an arc shape protruding upward toward the center of the air inlet structure, when the air flow enters the air inlet structure from the air inlet of the air inlet net, the intake air flow can flow from the periphery to the center, and further the negative pressure area is arranged more toward the short and wide, improving the smoking effect of the range hood under the same air volume.

[0032] In some embodiments, the combined cooking device includes a cooking appliance and a range hood. The cooking appliance and the range hood are installed on the panel. The range hood includes a fan unit and the air inlet structure, and the fan unit is connected to the air inlet structure.

[0033] In this way, the combined cooking device has both a heating function and a smoke exhaust function at the same time.

[0034] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 is a three-dimensional structure diagram of the air inlet structure of the combined cooking device according to an embodiment of the present invention in the first position;

[0037] Figure 2 is a three-dimensional structure diagram of the air inlet structure of the combined cooking device according to an embodiment of the present invention in the second position;

[0038] Figure 3 is a cross-sectional view of the combined cooking device according to an embodiment of the present invention;

[0039] Figure 4It is an exploded view structure diagram of the combined cooking device according to an embodiment of the present invention;

[0040] Figure 5 It is a three-dimensional structure diagram of the air inlet structure according to an embodiment of the present invention;

[0041] Figure 6 It is a cross-sectional view of the air inlet structure according to an embodiment of the present invention;

[0042] Figure 7 It is another cross-sectional view of the air inlet structure according to an embodiment of the present invention;

[0043] Figure 8 It is a module schematic diagram of the combined cooking device according to an embodiment of the present invention.

[0044] Description of main element symbols:

[0045] Combined cooking device 1000, range hood 100, air inlet structure 10, air inlet net 12, air inlet of air inlet net 122, mesh structure 124, circumferential rib 1242, radial rib 1244, peripheral wall 14, peripheral wall air inlet group 142, peripheral wall air inlet 1422, screw buckle 16, snap 18, fan unit 20, volute 22, motor 24, impeller 26, connection channel 30, smoke pipe 40, cooking utensil 200, panel 300, through hole 310. Detailed implementation manners

[0046] The following details the embodiments of the present invention. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Please refer to Figures 1-4 , the air inlet structure 10 of the embodiment of the present invention is used for the combined cooking device 1000. The combined cooking device 1000 includes a panel 300, a cooking appliance (not shown in the figure), and a range hood 100. The cooking appliance and the range hood 100 are installed on the panel 300, and the range hood 100 is located below the panel 300. The range hood 100 includes a blower unit 20 and an air inlet structure 10, and the blower unit 20 is connected to the air inlet structure 10. The panel 300 is provided with a through hole 310, and the air inlet structure 10 is disposed at the through hole 310 in a liftable manner.

[0050] In this way, the oil fume generated during the cooking process can enter the blower unit 20 through the air inlet structure 10 and then be discharged outdoors. It can be understood that on a stove where the range hood 100 cannot be installed, the untimely discharge of oil fume will affect the indoor environment. The combined cooking device 1000 with heating and smoke exhaust functions can effectively reduce the oil fume indoors, avoid indoor environmental pollution, be beneficial to the health of users, and expand the range of the use environment of the combined cooking device 1000.

[0051] Specifically, please refer to Figure 3, the blower unit 20 includes a volute 22, a motor 24 and an impeller 26, and the motor 24 and the impeller 26 are located inside the volute 22. The range hood 100 includes an air inlet structure 10 and a connecting passage 30, and the air inlet structure 10 is connected to the air inlet of the volute 22 through the connecting passage 30. The range hood 100 further includes a smoke pipe 40, and the smoke pipe 40 is connected to the air outlet of the volute 22. The air inlet structure 10 is capable of lifting at the through hole 310 of the panel 300, that is, the position of the air inlet structure 10 is adjustable. The air inlet structure 10 includes a first position and a second position. It can be understood that when the user uses the combined cooking device 1000 and needs to exhaust smoke, the air inlet structure 10 is in the first position, and the air inlet structure 10 can rise above the panel 300 by a certain height to achieve the effect of gathering smoke; when there is no need to exhaust smoke, the air inlet structure 10 is in the second position, and the air inlet structure 10 can descend to the same plane as the panel 300 to reduce the occupied space of the combined cooking device 1000 and improve the aesthetics and user comfort of the combined cooking device 1000. When the air inlet structure 10 is in the second position, the air inlet structure 10 sleevingly connects the connecting passage 30. The lifting of the air inlet structure 10 can be adjusted manually or by a driving member. Preferably, the lifting of the air inlet structure 10 is adjusted by a driving member, which is convenient for the user to operate. It should be noted that the connecting passage 30 is fixed.

[0052] Please refer to Figures 1-5 , the air inlet structure 10 includes an air inlet net 12 and a peripheral wall 14. The peripheral wall 14 is provided on the lower surface of the air inlet net 12. The air inlet net 12 is provided with an air inlet of the air inlet net 122. A mesh structure 124 is provided in the air inlet of the air inlet net 122. The mesh structure 124 includes a plurality of circumferential ribs 1242. The plurality of circumferential ribs 1242 are annular and concentrically spaced. The circumferential rib 1242 is in an arc shape convex upward toward the center of the air inlet of the air inlet net 122 (please refer to Figure 5 ) specifically.

[0053] In the air inlet structure 10 of the embodiment of the present invention, since the plurality of circumferential ribs 1242 are concentrically arranged and the circumferential rib 1242 is in an arc shape convex upward toward the center of the air inlet structure 10, when the air flow enters the air inlet structure 10 from the air inlet of the air inlet net 122, the intake air flow can be made to flow from the periphery to the center, and further the negative pressure area is arranged more toward the short and wide shape, improving the smoke suction effect of the range hood 100 at the same air volume.

[0054] It can be understood that the distribution of the negative pressure area of the air inlet structure 10 will affect the smoke exhaust effect of the range hood 100. When the negative pressure area is arranged more toward the short and wide shape, the oil fume on the periphery is more easily sucked into the air inlet of the air inlet net 122, thereby improving the smoke suction effect of the range hood 100 at the same air volume. At the same time, the mesh structure 124 in the air inlet of the air inlet net 122 separates the inside and outside of the range hood 100. On the one hand, it makes the range hood 100 more beautiful, and on the other hand, it can prevent the user from contacting the internal components of the range hood 100 to avoid the risk of possible mechanical damage.

[0055] It should be noted that the circumferential rib 1242 is in an arc shape that protrudes upward toward the center of the air inlet 122 of the air inlet net. It can be understood that one tangent line of the circumferential rib 1242 at one end in the air inlet direction of the air inlet 122 of the air inlet net forms a first angle with the vertical direction, and the tangent line of the circumferential rib 1242 at one end in the air outlet direction of the air inlet 122 of the air inlet net forms a second angle with the vertical direction, and the first angle is greater than the second angle.

[0056] In some embodiments, the air inlet 122 of the air inlet net is circular, and the scanning line of the circumferential rib 1242 is a circle and is concentric with the projection circle of the air inlet 122 of the air inlet net.

[0057] In this way, the negative pressure area is made as uniform as possible along the center of the air inlet 122 of the air inlet net to ensure the smoke suction effect of cooking appliances at different positions and meet the aesthetic requirements at the same time. In the illustrated embodiment, the scanning lines of the circumferential ribs 1242 are all circular, and the scanning projection plane of the circumferential rib 1242 remains unchanged along the scanning line of the circumferential rib 1242. It can be understood that the cross-section of the circumferential rib 1242 in the horizontal direction is a circle. The circumferential ribs 1242 are uniformly distributed in the radial direction and the starting points are in the same plane. In other embodiments, the circumferential rib 1242 can be designed into other shapes, such as oval, square, rectangle, etc. Multiple circumferential ribs 1242 can be of the same shape or can include different shapes. The area and shape of its scanning projection plane along the scanning line can be variable. The circumferential ribs 1242 can be non-uniformly distributed in the radial direction, and their starting points can be not in the same plane and there is a height difference, such as adopting a design method to ensure that the area between every two circumferential ribs 1242 is equal. It should be noted that the scanning projection plane of the circumferential rib 1242 is perpendicular to the scanning line of the circumferential rib 1242.

[0058] In another embodiment, the air inlet 122 of the air inlet net is oval, and the scanning line of the circumferential rib 1242 is an ellipse and is concentric with the projection ellipse of the air inlet 122 of the air inlet net. In this way, it is ensured that the negative pressure area is symmetric about the major axis and the minor axis of the projection ellipse of the air inlet 122 of the air inlet net and meets the aesthetic requirements at the same time. The beneficial effects and explanations of the above embodiment in which the scanning line of the circumferential rib 1242 is a circle and is concentric with the projection circle of the air inlet 122 of the air inlet net also apply to this embodiment and will not be repeated here.

[0059] In some embodiments, the mesh structure 124 includes a plurality of radial ribs 1244, and each radial rib 1244 connects a plurality of circumferential ribs 1242.

[0060] In this way, a plurality of circumferential ribs 1242 are supported and connected by the radial ribs 1244. It can be understood that the circumferential ribs 1242 are arranged along the circumference of the air inlet 122 of the air inlet net. A plurality of circumferential ribs 1242 need to be connected together. In this embodiment, by providing a plurality of radial ribs 1244, each radial rib 1244 connects a plurality of circumferential ribs 1242, thereby ensuring the stability of the mesh structure 124.

[0061] In some embodiments, the air inlet 122 of the air inlet net is circular, and the scan line of the radial rib 1244 is a straight line and coincides with the radius of the projection circle of the air inlet 122 of the air inlet net.

[0062] In this way, the circumferential ribs 1242 are supported by the radial ribs 1244, while meeting the aesthetic requirements. In the illustrated embodiment, the scan lines of the radial ribs 1244 are all straight lines, and the scan projection plane of the radial ribs 1244 remains unchanged along the scan line of the radial ribs 1244. It can be understood that the cross-sections of the radial ribs 1244 along the vertical direction are all rectangles. The long axis of the cross-section is parallel to the air inlet axis A, and the air inlet axis A refers to the central axis of the air inlet 122 of the air inlet net. The cross-section of the radial rib 1244 is an axisymmetric figure. In other embodiments, the cross-section of the radial rib 1244 can be a non-axisymmetric figure, and the area and shape of its scan projection plane along the scan line can be variable. It should be noted that the scan projection plane of the radial rib 1244 is perpendicular to the scan line of the circumferential rib 1242. The radial rib 1244 can prevent the circumferential rib 1242 from deforming and increase the structural stability of the air inlet 122 of the air inlet net.

[0063] In another embodiment, the air inlet 122 of the air inlet net is elliptical, and the scan line of the radial rib 1244 is a straight line and coincides with the major semi-axis or minor semi-axis of the projection ellipse of the air inlet 122 of the air inlet net. In this way, the circumferential ribs 1242 are supported by the radial ribs 1244, while meeting the aesthetic requirements. The beneficial effects and explanations of the above embodiment in which the scan line of the radial rib 1244 is a straight line and coincides with the radius of the projection circle of the air inlet 122 of the air inlet net also apply to this embodiment and will not be repeated here.

[0064] Please refer to Figure 6 and Figure 7 , in some embodiments, the circumferential rib 1242 is rounded at the front end direction E of the flow field; and / or the radial rib 1244 is rounded at the front end direction E of the flow field.

[0065] In this way, it is possible to adapt to changes in different air volume gears and the oncoming direction D of the back pressure, reduce the flow separation in the front direction E of the flow field, thereby reducing the resistance of the oil fume flow and the generation of local noise. It can be understood that when the range hood 100 operates, an oil fume flow field is formed, and the flow direction of the oil fume is from the front direction E of the flow field to the rear direction F of the flow field. Rounding the ends of the circumferential ribs 1242 and / or the radial ribs 1244 in the front direction E of the flow field can reduce the resistance of the oil fume flow and the generation of local noise. Preferably, the circumferential ribs 1242 are rounded in the front direction E of the flow field, and the radial ribs 1244 are also rounded in the front direction E of the flow field. Of course, in other embodiments, it may be that the circumferential ribs 1242 are rounded in the front direction E of the flow field, or the radial ribs 1244 are rounded in the front direction E of the flow field.

[0066] Please refer to Figure 6 and Figure 7 , in some embodiments, the circumferential ribs 1242 are chamfered obliquely in the rear direction F of the flow field; and / or the radial ribs 1244 are chamfered obliquely in the rear direction F of the flow field.

[0067] In this way, chamfering obliquely in the rear direction F of the flow field can reduce the cross-sectional area at the end, reduce the scale of the shedding vortex generated by the fluid, thereby reducing the resistance of the oil fume flow and the generation of local noise. It can be understood that chamfering the ends of the circumferential ribs 1242 and / or the radial ribs 1244 in the rear direction F of the flow field can reduce the resistance of the oil fume flow and the generation of local noise. Preferably, the circumferential ribs 1242 are chamfered obliquely in the rear direction F of the flow field, and the radial ribs 1244 are also chamfered obliquely in the rear direction F of the flow field. Of course, in other embodiments, it may be that the circumferential ribs 1242 are chamfered obliquely in the rear direction F of the flow field, or the radial ribs 1244 are chamfered obliquely in the rear direction F of the flow field.

[0068] Furthermore, the angle m between the chamfered edge line X of the circumferential rib 1242 and the midline Y of the projection plane is not greater than 45 degrees, which can ensure that the oil fume flows along the edge of the circumferential rib 1242. The midline Y of the projection plane refers to the midline of the scanning projection plane of the circumferential rib 1242. The angle between the chamfered edge line of the radial rib 1244 and the midline of the projection plane is not greater than 45 degrees, which can ensure that the oil fume flows along the edge of the radial rib 1244. The projection plane midline refers to the midline of the scanning projection plane of the radial rib 1244.

[0069] In a specific embodiment, the ends of the circumferential ribs 1242 and the radial ribs 1244 in the front direction E of the flow field are rounded, and the other ends of the circumferential ribs 1242 and the radial ribs 1244 in the rear direction F of the flow field are chamfered obliquely. In this way, the resistance of the oil fume flow can be reduced and the generation of local noise can be reduced, so that the entire combined cooking device 1000 can operate in a better state.

[0070] Please refer to FIG. 4 and Figure 5 , in some embodiments, a plurality of circumferential wall air inlet groups 142 are formed in the circumferential wall 14, and each circumferential wall air inlet group 142 includes a plurality of circumferential wall air inlets 1422 arranged in a honeycomb pattern.

[0071] In this way, the intake resistance of the cooking fume is further reduced, and the effect of assisting in gathering the fume is achieved. It can be understood that in the embodiment of the present invention, the air inlet structure 10 is arranged at the through hole 310 of the panel 300 in a liftable manner. When the user uses the combined cooking device 1000 and needs to exhaust the fume, the air inlet structure 10 can rise above the panel 300 by a certain height to expose a plurality of circumferential wall air inlet groups 142, so as to achieve the effect of assisting in gathering the fume. When the fume exhaust is not required, the air inlet structure 10 can be lowered to the same plane as the panel 300 so that a plurality of circumferential wall air inlet groups 142 are located below the panel 300.

[0072] In the illustrated embodiment, the circumferential wall air inlet 1422 is a hexagonal hole. In other embodiments, the circumferential wall air inlet 1422 can be a round hole. Of course, the circumferential wall air inlet group 142 can also adopt a plurality of circumferential wall air inlets 1422 arranged in an array, or a plurality of single air inlets are formed in the circumferential wall 14.

[0073] Please refer to Figure 8 , in some embodiments, the angle region n formed by the air inlet axis A of the air inlet net air inlet 122 and the range of the circumferential wall air inlet group 142 points to the range of the cooking appliance.

[0074] In this way, the circumferential wall air inlet group 142 can better play the role of assisting in gathering the fume. It can be understood that the position of the circumferential wall air inlet group 142 can be determined according to the setting position of the cooking appliance on the panel 300. In the illustrated embodiment, there are four cooking appliances, which are evenly distributed on the circumferential side of the air inlet structure 10. Correspondingly, four circumferential wall air inlet groups 142 are formed in the circumferential wall 14, corresponding to the cooking appliances one by one. In other embodiments, there may be two cooking appliances. The two cooking appliances can be connected in a straight line and are respectively located on opposite sides of the air inlet structure 10. Correspondingly, two circumferential wall air inlet groups 142 are formed in the circumferential wall 14, corresponding to the cooking appliances one by one.

[0075] Specifically, the angular region n covers the range of the cooking appliance and is not less than the preset degree r of the edge of the cooking utensil 200 placed on the cooking appliance. In this way, it is avoided that the opening range of the air inlet group 142 on the peripheral wall is too small, thereby ensuring the auxiliary smoke gathering effect of the peripheral wall 14. It can be understood that the cooking utensil 200 referred to in this embodiment is a cooking utensil 200 of a specific specification that matches the cooking appliance, and the size of the cooking utensil 200 is fixed. Therefore, it can be designed such that the angular region formed by the air inlet axis A of the air inlet of the air inlet net 122 and the range of the air inlet group 142 on the peripheral wall is not less than the preset degree r of the edge of the cooking utensil 200 placed on the cooking appliance. In one embodiment, the preset degree r is 20 degrees.

[0076] Please refer to Figure 4 , in some embodiments, the air inlet net 12 is installed on the peripheral wall 14 through a rotary buckle 16.

[0077] In this way, the installation of the air inlet net 12 and the peripheral wall 14 is simple and convenient. In other embodiments, the air inlet net 12 can be installed on the peripheral wall 14 through screws, buckles 18 or other fixing methods.

[0078] Please refer to Figure 6 , in some embodiments, a buckle 18 is provided at the lower end of the peripheral wall 14 so that the air inlet structure 10 is installed on the combined cooking device 1000 through the buckle 18.

[0079] In this way, the installation of the air inlet structure 10 and the combined cooking device 1000 is simple and convenient. It can be understood that the air inlet structure 10 is installed on the panel 300 through the buckle 18 and thus installed on the combined cooking device 1000. In other embodiments, the air inlet structure 10 can be installed on the panel 300 through screws or other fixing methods.

[0080] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0081] The disclosure herein provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Further, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air inlet structure for a combined cooking device, characterized in that, The air inlet structure includes an air inlet net and a peripheral wall. The peripheral wall is provided on the lower surface of the air inlet net. The air inlet net is provided with an air inlet of the air inlet net, and a mesh structure is provided in the air inlet of the air inlet net. The mesh structure includes a plurality of circumferential ribs. The plurality of circumferential ribs are arranged in a ring shape and concentrically spaced apart. The circumferential ribs are in an arc shape protruding upward toward the center of the air inlet of the air inlet net. The air inlet of the air inlet net is circular, and the scanning line of the circumferential rib is a circle and concentric with the projection circle of the air inlet of the air inlet net; or The air inlet of the air inlet net is elliptical, and the scanning line of the circumferential rib is an ellipse and concentric with the projection ellipse of the air inlet of the air inlet net. The peripheral wall is provided with a plurality of groups of peripheral wall air inlets. Each group of peripheral wall air inlets includes a plurality of peripheral wall air inlets arranged in a honeycomb shape, so that the flowing direction of the intake air flow is from the periphery to the center.

2. The air inlet structure according to claim 1, wherein, The mesh structure includes a plurality of radial ribs, and each radial rib connects the plurality of circumferential ribs.

3. The air inlet structure according to claim 2, characterized in that The air inlet of the air inlet net is circular, and the scanning line of the radial rib is a straight line and coincides with the radius of the projection circle of the air inlet of the air inlet net; or The air inlet of the air inlet net is elliptical, and the scanning line of the radial rib is a straight line and coincides with the major axis or the minor axis of the projection ellipse of the air inlet of the air inlet net.

4. The air inlet structure according to claim 2, characterized in that, The circumferential rib is rounded at the front end direction of the flow field; and / or, The radial rib is rounded at the front end direction of the flow field.

5. The air inlet structure according to claim 2, characterized in that, The circumferential rib is chamfered obliquely at the rear end direction of the flow field; and / or, The radial rib is chamfered obliquely at the rear end direction of the flow field.

6. The air inlet structure according to claim 1, characterized in that, The air inlet axis of the air inlet of the air inlet net forms an angular area with the range of the peripheral wall air inlet group, and this angular area points to the range of the cooking appliance.

7. The air inlet structure according to claim 6, wherein The angular area covers the range of the cooking appliance and is not less than a preset degree of the edge of the cooking utensil placed on the cooking appliance.

8. The air inlet structure according to claim 1, characterized in that, The air inlet net is installed on the peripheral wall through a rotary buckle.

9. The air inlet structure according to claim 1, characterized in that, A buckle is provided at the lower end of the peripheral wall so that the air inlet structure is installed on the combined cooking device through the buckle.

10. A combined cooking device, characterized in that, It includes a panel and the air inlet structure according to any one of claims 1-9. The panel is provided with a through hole, and the air inlet structure is arranged at the through hole in a liftable manner.

11. The combined cooking device according to claim 10, characterized in that, The combined cooking device includes a cooking appliance and a range hood. The cooking appliance and the range hood are installed on the panel. The range hood includes a fan unit and the air inlet structure, and the fan unit is connected to the air inlet structure.

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