CN217907421U - Cooking utensil - Google Patents

Abstract

The application provides a cooking utensil, includes: the cooker assembly comprises a container body and a frying plate, wherein a cooking cavity is formed in the container body, and the frying plate is detachably arranged in the cooking cavity; the air duct is arranged around the container body and provided with air outlets distributed circumferentially, container air inlets distributed circumferentially are arranged on the side wall of the container body, the air outlets and the container air inlets are arranged oppositely, and the frying plate is positioned above the container air inlets; the hot air assembly comprises an air supply part and a heating part, the hot air assembly is arranged in the air channel, and the air heated by the heating part in the air channel can be blown to the cooking cavity by the air supply part. The container air inlet is located below the frying plate, hot air can be prevented from directly blowing to food materials placed on the frying plate to cause scorching, and the hot air can rotate in the container body and flow upwards to penetrate through the frying plate to cook the food materials due to rising of the hot air, so that the food materials are heated more uniformly, the maturity is consistent, and the cooking effect is good.

Description

Cooking utensil

Technical Field

The application relates to the technical field of household appliances, in particular to a cooking appliance.

Background

With the improvement of living standard of people, kitchen appliances are more and more widely used, and an air fryer is one of the kitchen appliances; the existing air fryer is generally provided with a fan blade, a heating pipe, a cavity, a baking tray and the like from top to bottom, and the heat emitted by the heating pipe is blown into the cavity of the cooking utensil by the air blown out by the fan blade, so that the food is heated. However, because the whole wind direction is directly vertical downward, under the influence of the fan, the wind current in the circumferential direction exists, so that the food positioned at the center of the frying plate is difficult to be sufficiently heated, the food is not uniformly colored, the phenomena that part of the food is excessively heated and part of the food is insufficiently heated exist, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve at least that exist among the above-mentioned prior art or the correlation technique because the vertical downdraught of wind that the fan produced leads to having the ascending rotatory distinguished and admirable of circumference, it is inhomogeneous to get into the interior distinguished and admirable of pot body, influences the problem of holistic effect of toasting.

To this end, a first aspect of the present application is to provide a cooking appliance.

According to a first aspect of the present invention, there is provided a cooking appliance, comprising: the cooker assembly comprises a container body and a frying plate, wherein a cooking cavity is formed in the container body, and the frying plate is detachably arranged in the cooking cavity; the air duct is arranged around the container body and provided with air outlets distributed circumferentially, container air inlets distributed circumferentially are formed in the side wall of the container body, the air outlets are arranged opposite to the container air inlets, and the frying plate is positioned above the container air inlets; the hot air assembly comprises an air supply part and a heating part, the hot air assembly is arranged in the air channel, and the air heated by the heating part in the air channel can be blown into the cooking cavity by the air supply part.

The cooking appliance provided by the embodiment of the invention comprises a pot component, an air duct and a hot air component, wherein the pot component can be used for containing food materials and the like, and particularly the food materials to be cooked are placed on a frying plate; the hot-blast subassembly blows off hot-air by the air outlet that is located the circumference distribution of wind channel inner circle, the air outlet in wind channel is relative with the round container air intake of setting on the lateral wall of container body, and, the container air intake is located the below of deep-fry board, make the air current that the air feed spare blew off can be via the air outlet, the container air intake enters into inside the container body, on the one hand, circumference air inlet makes the air current blow off towards the inside center of container body, the air current is at this internal distribution of container even, on the other hand, the container air intake is located the below of deep-fry board, both can prevent hot-blast direct blow to cause the burnt paste on placing the edible material on the deep-fry board, again because hot-air rises, hot-air is at container body internal rotation and upwards flow and then passes the deep-fry board and cook the edible material, make the edible material be heated more evenly, the maturity is unanimous, it is effectual to cook.

Specifically, as an example, a plurality of oil leakage holes are formed in the frying plate, so that grease can be filtered, and the phenomenon that grease is accumulated at the bottom of food materials and is too greasy is avoided.

Specifically describing the flow path of the cooking appliance in the embodiment of the present application, the air heated by the heating element is generally divided into two paths, the first path: the hot air passes through the heating element, most of the hot air is guided by the heat transfer sheet under the condition that the heating element comprises the heat transfer sheet, so that the hot air enters the cooking cavity of the container body through the air outlet and the air inlet of the container, and the air can blow off the center of the container body; a second path: hot air passes through the lower part of the heating element, part of the air can rotate clockwise along with the annular air duct, the other part of the air can enter the container body from the air outlets distributed in the circumferential direction, and the air can obliquely rotate to blow away the air from the center of the container body; the hot air rotates in the container body and the hot air upwards passes through the frying plate to cook the food material, so that the food material is heated more uniformly.

In addition, the cooking utensil provided by the above embodiment of the present application may further have the following additional technical features:

in some embodiments, the container body comprises a main side wall, a contraction part and a connecting section connected between the main side wall and the contraction part, the contraction part is positioned below the main side wall, the outer diameter of the contraction part is smaller than that of the main side wall, and the container air inlet is arranged on the contraction part; the frying plate can be supported on the connecting section; or a plurality of support columns are arranged on the connecting section at intervals, and the frying plate can be supported on the support columns.

In the embodiments, the air duct is arranged around the periphery of the container body, the diameter of the lower part of the container body is smaller, and the air duct is arranged around the periphery of the contraction part to occupy smaller space, so that the volume of the air duct is smaller, and the miniaturization of a product is facilitated; furthermore, the frying plate can be directly supported on the connecting section, so that an independent supporting structure does not need to be arranged for the frying plate, the structure of the container body is simplified, the processing and the production of products are convenient, the distance between the frying plate and the air inlet of the container is short, hot air can flow to the frying plate as soon as possible, the food materials are further heated, and the heating efficiency is improved; or, the frying plate can be supported on a plurality of support columns that are located the linkage segment, can make placing of frying plate more stable through setting up the support column, be difficult for crooked or rock, certainly, because the support column sets up in linkage segment department, also can make the distance of frying plate and container air intake near, hot-air can flow frying plate department as early as possible, and then heats eating the material, promotes heating efficiency.

In some embodiments, the length of the container inlet in the vertical direction is greater than the length of the outlet in the vertical direction, in which the outlet is within the range of the container inlet. So set up for the container air intake can align with the air outlet, and the wind that the air outlet flows can directly enter into the container air intake, thereby reduces hot-blast spilling as far as possible, the increasing the heat efficiency.

In some embodiments, be formed with annular wind chamber and the installation cavity that is located the wind chamber periphery in the wind channel, the one end intercommunication of installation cavity is to the outside, and the other end is linked together with the wind chamber, and the air feed spare sets up in the installation cavity, and the air-out face of air feed spare is towards the wind chamber.

In the embodiments, the air supply member blows external fresh air into the annular air cavity, and under the action of air pressure, the air can rotate clockwise or counterclockwise (clockwise or counterclockwise relative to the setting position of the fan) in the air cavity and is blown out by the air outlet located at the inner ring of the air duct, and then enters the container body through the air inlet of the container and blows towards the inner center of the container body, so that the distribution of the air flow in the container body is more uniform.

In some embodiments, the air outlet direction of the air supply member is tangential to the inner wall of the air cavity. So set up for the air that the air feed spare blew off flows more smoothly in annular wind chamber, reduces the windage.

In some embodiments, the minimum distance between the air feed and the annular centre line of the air cavity ranges from 5mm to 25mm. In this within range, can be so that keep having certain safe distance between air feed spare and the heating member, prevent that air feed spare from being too close to heating member high temperature and leading to air feed spare to damage.

It is worth to be noted that, because the wind cavity is annular, any cross section of the wind cavity is circular, and the annular center line of the wind cavity is: the centers of the cross sections of the wind cavities are connected to form a circle.

In some embodiments, the heating element comprises an annular heat pipe. The annular heating tube can be better matched with the annular air cavity, the heating area is increased as much as possible, the heating efficiency is high, and the heating is uniform.

In some embodiments, the heating element includes an annular heating tube and a plurality of heat transfer fins arranged around the annular heating tube, and the extending direction of the heat transfer fins faces the center of the air duct. So set up, the heat transfer piece can play the effect to hot-blast direction, with the center of hot-blast direction container body, can also effectual increase heating area improve heating efficiency.

In some embodiments, in the case where the heating member includes a heat transfer sheet, the heat transfer sheet is a circular sheet, and a plurality of heat transfer sheets are disposed at intervals on the outer periphery of the annular heat generating pipe in the circumferential direction of the annular heat generating pipe. The wafer has simple structure and is easy to process.

In some embodiments, the heat transfer sheet is spirally wound around the outer circumference of the annular heat generating tube along the circumferential direction of the annular heat generating tube. The spiral heat transfer sheet can be tightly coiled on the periphery of the annular heating tube, and is more favorable for assembly with the annular heating tube.

In some embodiments, the heat transfer sheet of one of the plurality of heat transfer sheets, which can be tangent to an extension of the axis of the air supply member, extends at an obtuse angle to the axis of the air supply member. So set up, can reduce the direction resistance of the air current that the air feed spare blew, make the air current flow more smooth and easy.

In some embodiments, the pipe diameter of the annular heating pipe is 5mm to 8mm. If the pipe diameter is too large, the air duct needs to be enlarged at the same time, so that the whole machine is overstaffed and the cost is increased; and if the pipe diameter is too small, the heat dissipation area is small, the heat is concentrated, and the annular heating pipe is easy to damage.

In some embodiments, the heat transfer fins have a diameter of 10mm to 25mm. If the diameter of the heat transfer sheet is too large, the air duct needs to be enlarged at the same time, so that the whole machine is too bulky and the cost is increased; if the diameter of the heat transfer sheet is too small, the heat dissipation area is small, the heat is concentrated, and the annular heating tube is easy to damage.

In some embodiments, the air duct comprises: the cooker comprises an upper air duct shell and a lower air duct shell, wherein the upper air duct shell and the lower air duct shell are enclosed to form a cavity; the air guide sheet is arranged in the upper air duct shell and comprises an air guide part, the air guide part gradually inclines downwards towards the opening and extends into the opening, and the air guide part is used for guiding the circularly rotating air into the cookware assembly obliquely downwards.

In the embodiments, the upper duct shell and the lower duct shell enclose to form a cavity, and one side of the upper duct shell and the lower duct shell facing the container body are provided with a circle of openings, and the air guiding part of the air guiding sheet gradually inclines downwards from the inside of the cavity to the direction of the openings and extends into the openings to play a role in guiding air flow inside the air cavity, so that the air flow rotating in the air cavity is obliquely downwards guided into the container body, and the air flow can flow to food materials at the bottom of the container body.

In some embodiments, the air duct further comprises: the air guide ring is positioned at the opening, the lower end of the air guide ring is abutted with the lower air duct shell, the air guide ring comprises a ring body, a top wall of the ring body and a plurality of supporting blocks which are convexly arranged on the top wall of the ring body, and the supporting blocks are abutted with the lower surface of the air guide part to form an air outlet between the air guide part and the air guide ring.

In the embodiments, the air guide ring is arranged at the opening to shield a part of the opening, and the supporting block of the air guide ring is abutted against the lower surface of the air guide part, so that a circle of gap is formed between the air guide part and the air guide ring, the gap forms an air outlet, the air duct is integrally split into the upper air duct shell, the lower air duct shell, the air guide sheet and the air guide ring, and each part can be independently processed and produced, so that the air duct is simpler to process.

In some embodiments, the top wall of the ring body extends obliquely downwards from outside to inside, and forms an air outlet facing obliquely downwards by matching with the air guiding part; the lower surface of the air guide part is approximately parallel to the top wall of the ring body, and the distance between the lower surface of the air guide part and the top wall of the ring body is 1.5mm to 5mm; the length H2 of the air inlet of the container in the vertical direction is 2mm to 7mm.

In these embodiments, the top wall of the ring body extends obliquely downward toward the container body, and forms an obliquely downward air outlet in cooperation with the air guiding portion, so that the obliquely downward air outlet can better guide the direction of the air flow, and the air flow flows toward the bottom wall of the container body. Furtherly, the distance between the lower surface of wind-guiding portion and the roof of ring body is 1.5mm to 5mm, and in this within range, can enough guarantee the air output, makes the wind speed via the air outlet great again to make the air current can distribute this internal most space of container, specifically, oversize can reduce the wind speed of air outlet department, and undersize can reduce the air output. The length H2 of the air inlet of the container in the vertical direction is 2mm to 7mm, and in the range, the air inlet can be better matched with the size of the air outlet and is slightly larger than the air outlet, so that the leakage of hot air is reduced as much as possible.

In some embodiments, the angle between the lower surface of the wind guiding part and the vertical direction is 20-45 °. In the range, the interior of the container body can be uniformly heated, specifically, if the inclination angle is too small, the wind can reach the bottom wall of the container body in advance, and the wind can not reach the central range of the bottom wall of the container body, can rotate in the container body, and then is thrown to the side wall of the container body, so that uneven heating is caused; and if inclination is too big, wind can postpone reaching the bottom of a boiler, can exceed the central scope of container body diapire, then at the inside rotation of container body, and then get rid of the lateral wall to container body, cause the heating inhomogeneous.

In some embodiments, the top end of the ring body is higher than the bottom end of the air guiding part, so that the ring body and the air guiding part are partially structurally staggered; the staggered size of the ring body and the air guide part is 0.5mm to 5mm.

In the embodiments, the ring body and the air guide part are arranged in a staggered manner from inside to outside to form a structure similar to a shutter, and the top end of the ring body positioned inside is higher than the bottom end of the air guide part, so that oil drops and the like splashed from the inside of the container body through the air inlet of the container can be shielded, the risk of splashing flying oil into an air duct is avoided, and tainting odor is formed; furthermore, the staggered size of the ring body and the air guide part is 0.5mm to 5mm, if the staggered size is too large, the air outlet can be shielded, the blowing-in air speed is influenced, the cooking efficiency is reduced, and if the staggered size is too small, the effect of shielding oil drops cannot be achieved.

In some embodiments, the number of support blocks is 3 or greater. 3 and more than 3 supporting blocks can realize the stable support between wind-guiding portion and the ring body.

In some embodiments, the distance between two adjacent support blocks is greater than or equal to 20mm. If the distance between two adjacent supporting blocks is too close, wind is easy to be blocked, and the wind outlet efficiency is influenced.

In some embodiments, the ratio of the projected area of the outlet vent in the horizontal plane to the projected area of the support block in the horizontal plane is 10 to 200. In this scope, the area of air outlet is greater than the area of supporting shoe far more, and the supporting shoe is little to the influence of air-out, and the air-out effect is more smooth and easy.

In some embodiments, the cookware assembly further comprises: the pot cover can be covered on the container body, and the pot cover comprises a handle arranged on the container body and provided with an exhaust hole communicated with the inside of the container body. The hot air after cooking can be discharged through the exhaust holes on the lifting handle, so that an external circulation air duct is formed, fresh air is blown into the container body every time, and food materials are not tainted with smell.

In some embodiments, the cooking utensil further comprises a base assembly, the base assembly comprises a base and an upper cover, the upper cover is covered on the base and is enclosed with the base to form an accommodating cavity, the air duct is arranged in the accommodating cavity, a through hole for accommodating the pot assembly is formed in the middle of the upper cover, and the pot assembly penetrates through the through hole and is detachably mounted on the base assembly.

In these embodiments, the wind channel sets up in the base subassembly, and the pan subassembly is placed on the base subassembly, forms the structure that can separate from top to bottom, and when cooking, heating member and/or the heating dish subassembly in the base subassembly can form down the heating to the pan subassembly, and hot-air can rise for the heating effect is more even.

Additional aspects and/or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of a cooking appliance provided according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a cooking device according to an embodiment of the present invention;

fig. 3 is another schematic sectional view of a cooking appliance according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

fig. 5 is a partial schematic structural view of a base assembly of a cooking appliance provided according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional structure of the structure of FIG. 5;

FIG. 7 is a top view of the structure of FIG. 5;

FIG. 8 is a schematic structural view of the structure of FIG. 5 in an inverted state;

FIG. 9 is an exploded view of the structure of FIG. 5;

fig. 10 is a schematic structural view of an upper duct housing of a cooking appliance according to an embodiment of the present invention;

fig. 11 is another schematic structural view of an upper duct housing of a cooking appliance according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a heating element of a cooking appliance according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a wind deflector of a cooking appliance according to an embodiment of the present invention;

fig. 14 is another schematic structural view of a wind deflector of a cooking appliance according to an embodiment of the present invention;

fig. 15 is a schematic structural view of a lower duct housing of a cooking appliance according to an embodiment of the present invention;

fig. 16 is another structural schematic diagram of a lower air duct shell of a cooking appliance according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a wind guide ring of a cooking appliance according to an embodiment of the present invention;

fig. 18 is another schematic structural view of a wind guide ring of a cooking appliance according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a pot assembly of a cooking appliance according to an embodiment of the present invention;

FIG. 20 is a schematic cross-sectional view of the structure of FIG. 19 and showing the flow path of the gas flow;

FIG. 21 is a schematic cross-sectional structure view of the structure of FIG. 19;

fig. 22 is a schematic structural view of a container body of a cooking appliance according to an embodiment of the present invention;

FIG. 23 is a schematic cross-sectional structure of the structure of FIG. 22;

fig. 24 is a schematic view of a projected area of the annular air outlet and the support block of the cooking appliance provided according to an embodiment of the present invention;

fig. 25 is a schematic view of air flow in the air duct of a cooking appliance provided in accordance with an embodiment of the present invention;

fig. 26 is a schematic view of air flowing at a heating element of a cooking appliance according to an embodiment of the present invention.

Fig. 1-26 reference numbers illustrate:

10 pan assemblies, 110 container bodies, 111 cooking chambers, 112 container intakes, 113 constrictions, 114 major side walls, 115 connecting sections, 116 support columns, 120 pan covers, 121 cover bodies, 122 handles, 1221 exhaust holes, 140 frying plates,

20 air ducts, 210 an upper air duct shell, 211 an avoidance port, 220 a lower air duct shell, 230 an air guide sheet, 231 an air guide part, 232 mounting columns, 240 an air guide ring, 241 a ring body, 242 supporting blocks, 243 the top wall of the ring body, 250 an air outlet, 260 an air cavity, 270 an installation cavity,

310 air supply parts, 320 heating parts, 321 annular heating pipes, 3214 cold ends, 3215 wiring parts and 322 heat transfer sheets,

40 of heat preservation cover, 50 of heating disc component,

60 base assembly, 610 base, 620 cover.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art upon reading the disclosure of the present application. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but may be changed as will become apparent after understanding the present disclosure, in addition to operations that must occur in a particular order. Moreover, descriptions of features known in the art may be omitted for greater clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and/or systems described herein, which will be apparent after understanding the disclosure of the present application.

As used herein, the term "and/or" includes any one of the associated listed items as well as any combination of any two or more.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein could also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

In the specification, when an element such as a layer, region or substrate is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected to or coupled to the other element or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there may be no intervening elements present.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular is also intended to include the plural unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof. The term "plurality" represents any number of two or more.

The definitions of the directional words such as "upper", "lower", "top" and "bottom" in the present application are all defined based on the orientation of the cooking utensil when the cooking utensil is in a normal use state and is placed upright.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs after understanding the present invention. Unless explicitly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense.

Further, in the description of the examples, when it is considered that detailed description of well-known related structures or functions will cause a vague explanation of the present invention, such detailed description will be omitted.

A cooking appliance of some embodiments of the present application will be described below with reference to fig. 1 to 26.

As shown in fig. 2 to 4, 20, 21 and 22, a first aspect of the present invention provides a cooking appliance, including: the cookware assembly 10 comprises a container body 110 and a frying plate 140, wherein the container body 110 is internally provided with a cooking cavity 111, and the frying plate 140 is detachably arranged in the cooking cavity 111; the air duct 20 is arranged around the container body 110, the air duct 20 is provided with air outlets 250 distributed circumferentially, container air inlets 112 distributed circumferentially are arranged on the side wall of the container body 110, the air outlets 250 are arranged opposite to the container air inlets 112, and the frying plate 140 is positioned above the container air inlets 112; and a hot air assembly including an air supply member 310 and a heating member 320, the hot air assembly being disposed in the air duct 20, the air supply member 310 being capable of blowing air heated by the heating member 320 in the air duct 20 into the cooking chamber 111.

The cooking appliance provided by the embodiment of the present aspect includes a pot assembly 10, an air duct 20 and a hot air assembly, the pot assembly 10 can be used for containing food materials and the like, and specifically, the food materials to be cooked are placed on the frying plate 140; the hot air component blows out hot air from the circumferentially distributed air outlets 250 located at the inner ring of the air duct 20, the air outlets 250 of the air duct 20 are opposite to a circle of container air inlets 112 arranged on the side wall of the container body 110, and the container air inlets 112 are located below the frying plate 140, so that air flow blown out by the air supply component 310 can enter the container body 110 through the air outlets 250 and the container air inlets 112.

In some embodiments, the air outlet 250 may be an opening that is circumferentially and continuously distributed, in which case, the air outlet 250 is an annular air outlet; the air outlets 250 may also be through openings circumferentially spaced, and the number of the through openings is plural; similarly, the container inlet 112 may be a circumferentially continuous opening, in which case the container inlet 112 is a circular inlet; the container inlet 112 may also be a plurality of circumferentially spaced openings.

Specifically, as shown in fig. 2 and 20, the frying plate 140 is provided with a plurality of oil leakage holes, so as to filter grease and prevent grease from accumulating at the bottom of the food material and being too greasy.

To explain the flow path of the cooking appliance in the embodiment of the present application, the air heated by the heating element 320 is divided into two paths, the first path: the hot wind passes through the heating member 320, and based on the condition that the heating member 320 includes the heat transfer sheet 322, most of the hot wind is guided by the heat transfer sheet 322, so that the hot wind enters the cooking cavity 111 of the container body 110 through the air outlet 250 and the container air inlet 112, and the wind blows towards the center of the container body 110; a second path: the hot air passes through the lower part of the heating element 320, part of the air rotates clockwise along with the annular air duct 20, the other part of the air enters the container body 110 from the air outlets 250 distributed in the circumferential direction, and the air obliquely rotates to blow away from the center of the container body 110; the hot air rotates within the container body 110 and the hot air passes upwardly through the frying plate 140 to cook the food material so that the food material is heated more uniformly.

With respect to the specific configuration of the container body 110 and the location of the fryer plate 140, in some embodiments, as shown in fig. 2, 3, 4, 20, 21, 22, 23, the container body 110 includes a main sidewall 114, a constriction 113 and a connecting section 115 connected between the main sidewall 114 and the constriction 113, the constriction 113 is located below the main sidewall 114, the constriction 113 has an outer diameter smaller than that of the main sidewall 114, and the container intake 112 is located on the constriction 113; fryer plate 140 can be supported on connecting section 115; or a plurality of support posts 116 are spaced apart on the connecting section 115, and the frying plate 140 can be supported on the support posts 116.

In these embodiments, since the air duct 20 is disposed around the outer periphery of the container body 110, the diameter of the lower portion of the container body 110 is smaller, and the air duct 20 is disposed around the outer periphery of the contraction portion 113 to occupy a smaller space, so that the volume of the air duct 20 is smaller, which is beneficial to miniaturization of the product; furthermore, the frying plate 140 can be directly supported on the connecting section 115, so that a separate supporting structure does not need to be arranged for the frying plate 140, the structure of the container body 110 is simplified, the processing and the production of products are facilitated, the distance between the frying plate 140 and the container air inlet 112 can be short, hot air can flow to the frying plate 140 as soon as possible, food materials are further heated, and the heating efficiency is improved; or, as shown in fig. 21 and 23, the frying plate 140 can be supported on a plurality of supporting columns 116 on the connecting section 115, and the arrangement of the supporting columns 116 can make the placing of the frying plate 140 more stable and not prone to skew or shake, and certainly, because the supporting columns 116 are arranged at the connecting section 115, the distance between the frying plate 140 and the container air inlet 112 can also be made to be short, so that the hot air can flow to the frying plate 140 as soon as possible, and further, the food material is heated, and the heating efficiency is improved.

In some embodiments, as shown in fig. 3 and 4, the length of the container inlet 112 in the vertical direction is greater than the length of the outlet 250 in the vertical direction, and the outlet 250 in the vertical direction is located within the range of the container inlet 112. So set up for container air intake 112 can align with air outlet 250, and the wind energy that air outlet 250 flows out can directly enter into container air intake 112 to reduce hot-blast to spill as far as possible, improve the thermal efficiency.

In some embodiments, as an example, optionally, as shown in fig. 23, the length H2 of the container inlet 112 in the vertical direction is 2mm to 7mm, and in this range, it can be better matched with the size of the outlet 250 and is slightly larger than the outlet 250, so as to reduce the leakage of the hot air as much as possible.

Regarding the specific structure of the air duct 20 and the installation position of the air supply member 310, in some embodiments, as shown in fig. 5 to 8, 10, 11, 15 and 16, an annular air cavity 260 and an installation cavity 270 located at the periphery of the air cavity 260 are formed in the air duct 20, one end of the installation cavity 270 is communicated to the outside, the other end is communicated with the air cavity 260, the air supply member 310 is disposed in the installation cavity 270, and an air outlet surface of the air supply member 310 faces the air cavity 260.

In these embodiments, the air supply member 310 blows fresh air from the outside into the annular air chamber 260, and under the action of the wind pressure, the air will rotate clockwise or counterclockwise in the air chamber 260 (clockwise or counterclockwise is related to the position where the fan is disposed), and is blown out from the air outlet 250 located at the inner ring of the air duct 20, and then enters the interior of the container body 110 through the container inlet 112, and is blown towards the inner center of the container body 110, so that the distribution of the air flow in the container body 110 is more uniform.

Alternatively, the air supply 310 may be a fan, preferably an axial fan.

In some embodiments, as shown in fig. 25 and 26, the air outlet direction of the air supply member 310 is tangential to the inner wall of the air cavity 260. By the arrangement, the air blown out by the air supply member 310 flows more smoothly in the annular air cavity 260, and the wind resistance is reduced.

Further, in some embodiments, as shown in fig. 25, the minimum distance L7 between the air supply member 310 and the annular center line of the air cavity 260 is in a range of 5mm to 25mm, so as to prevent the air supply member 310 from being damaged due to too high temperature of the air supply member 310 when the air supply member 310 is too close to the heating member 320.

It should be noted that, because the wind cavity 260 is annular, any cross section of the wind cavity 260 is circular, and the annular center line of the wind cavity 260 is: the centers of the cross sections of the wind cavities 260 are connected to form a circle.

With respect to the specific structure of the air chute 20, in some embodiments, as shown in fig. 4, 5, 6, and 9, the air chute 20 further comprises: the container comprises an upper air duct shell 210 and a lower air duct shell 220, wherein the upper air duct shell 210 and the lower air duct shell 220 enclose to form a cavity, and one side, facing the container body 110, of the enclosed upper air duct shell 210 and the enclosed lower air duct shell 220 is provided with a circle of openings; the air guide sheet 230 is disposed in the upper duct shell 210, and the air guide sheet 230 includes an air guide portion 231, and the air guide portion 231 gradually inclines downward toward the opening and extends into the opening.

In these embodiments, the upper duct shell 210 and the lower duct shell 220 enclose to form a cavity, and one side of the cavity facing the container body 110 has a circle of openings, and the air guiding portion 231 of the air guiding plate 230 gradually inclines downwards from the inside of the cavity towards the direction of the openings and extends into the openings, so as to guide the airflow inside the air cavity 260, thereby guiding the airflow rotating in the annular shape in the air cavity 260 downwards into the container body 110, so that the airflow can flow to the food material at the bottom of the container body 110.

It is worth noting that the cavities include a mounting cavity 270 and a plenum 260.

As to the specific structure of the wind-guiding sheet 230, in some embodiments, as shown in fig. 13 and fig. 14, optionally, as an example, the wind-guiding sheet 230 further includes a mounting column 232 for being fixedly connected to the upper duct casing 210, for example, a plurality of through holes or threaded holes may be provided on the upper duct casing 210, through holes or threaded holes may be provided in the mounting column 232, and the assembly of the wind-guiding sheet 230 and the upper duct casing 210 is achieved by a connector such as a screw or a bolt.

With respect to the specific structure of the air chute 20, in some embodiments, as shown in fig. 4, 5, 6, and 9, the air chute 20 further comprises: as shown in fig. 18 and 19, the air guide ring 240 includes a ring body 241, a top wall 243 of the ring body, and a plurality of supporting blocks 242 protruding from the top wall 243 of the ring body, and the supporting blocks 242 abut against the lower surface of the air guide portion 231 to form an air outlet 250 between the air guide portion 231 and the air guide ring 240.

In these embodiments, the wind-guiding ring 240 is disposed at the opening to shield a portion of the opening, and the supporting block 242 of the wind-guiding ring 240 abuts against the lower surface of the wind-guiding portion 231, so as to form a circle of gap between the wind-guiding portion 231 and the wind-guiding ring 240, the gap forms the wind outlet 250, and the wind duct 20 is integrally split into the upper wind duct shell 210, the lower wind duct shell 220, the wind-guiding sheet 230 and the wind-guiding ring 240, which can be processed and produced separately for each component, so that the processing of the wind duct 20 is simpler. It can be understood that, in the embodiment, the air outlet 250 formed by a circle of gap between the air guiding portion 231 and the air guiding ring 240 is an annular air outlet.

In some embodiments, as shown in fig. 5, the top wall 243 of the ring body extends obliquely downward from outside to inside, and forms an air outlet 250 facing obliquely downward in cooperation with the air guiding portion 231; the lower surface of the air guiding portion 231 is substantially parallel to the top wall 243 of the ring body, as shown in fig. 5, and the distance H1 between the lower surface of the air guiding portion 231 and the top wall 243 of the ring body is 1.5mm to 5mm.

In these embodiments, the top wall 243 of the ring body extends obliquely downward toward the container body 110, and cooperates with the air guiding portion 231 to form the air outlet 250 facing obliquely downward, so that the air outlet 250 facing obliquely downward can better guide the direction of the air flow, so that the air flow flows toward the bottom wall of the container body 110. Further, the distance H1 between the lower surface of the air guiding portion 231 and the top wall 243 of the ring body is 1.5mm to 5mm, and within this range, the air outlet volume can be ensured, and the air speed through the air outlet 250 is relatively large, so that the airflow can be distributed to most of the space in the container body 110, specifically, if the air outlet 250 is too large, the air speed at the air outlet 250 is reduced, and if the air outlet volume is too small, the air outlet volume is reduced.

In some embodiments, as shown in fig. 5, the angle α 1 between the lower surface of the wind guiding portion 231 and the vertical direction is 20 ° to 45 °. In this range, the interior of the container body 110 can be uniformly heated, specifically, if the inclination angle is too small, the wind may reach the bottom wall of the container body 110 in advance, and the wind may not reach the central range of the bottom wall of the container body 110, and may rotate inside the container body 110, and then throw the wind toward the side wall of the container body 110, thereby causing uneven heating; and if the inclination is too big, wind can postpone to reach the bottom of a boiler, can exceed the central range of container body 110 diapire, then rotate in container body 110 is inside, and then get rid of to container body 110's lateral wall, cause the heating inhomogeneous.

In some embodiments, as shown in fig. 5, the top end of the ring body 241 is higher than the bottom end of the wind guiding portion 231, so that the ring body 241 and the wind guiding portion 231 are partially staggered; the staggered size H3 of the ring body 241 and the air guiding portion 231 is 0.5mm to 5mm.

In these embodiments, the ring body 241 and the air guiding portion 231 are arranged in a staggered manner from inside to outside to form a structure similar to a louver, and the top end of the ring body 241 inside is higher than the bottom end of the air guiding portion 231, so as to shield oil drops and the like splashed from the inside of the container body 110 through the container air inlet 112, thereby avoiding the risk of splashing of the oil into the air duct 20 and forming tainted odor; further, as shown in fig. 5, the cross dimension H3 of the ring body 241 and the air guiding portion 231 is 0.5mm to 5mm, if the cross dimension is too large, the air outlet 250 is blocked, the blowing-in air speed is affected, the cooking efficiency is reduced, and if the cross dimension is too small, the oil drop blocking effect cannot be achieved.

In some embodiments, as shown in fig. 17 and 18, the number of support blocks 242 is equal to or greater than 3. The 3 and 3 or more support blocks 242 can stably support the air guide portion 231 and the ring body 241.

Alternatively, the number of support blocks 242 is preferably 3, and 3 support blocks 242 can both stably support and facilitate the wind to blow through due to the minimum occupied area of the wind outlet 250.

In some embodiments, as shown in fig. 17, the distance L8 between two adjacent support blocks 242 is greater than or equal to 20mm. If the distance L8 between two adjacent supporting blocks 242 is too close, wind is easily blocked, which affects the wind outlet efficiency.

In some embodiments, as shown in fig. 24, the ratio of the projected area of the outlet 250 to the projected area of the support blocks 242 is 10 to 200. In this range, the area of the air outlet 250 is much larger than that of the supporting blocks 242, the supporting blocks 242 have little influence on the air outlet, and the air outlet effect is smoother.

In some embodiments, the heating element 320 includes an annular heating tube 321. The annular heating pipe 321 can be better matched with the annular air cavity 260, and the heating area is increased as much as possible, so that the heating efficiency is high, and the heating is uniform.

In some embodiments, as shown in fig. 12 and 26, the heating member 320 includes an annular heating pipe 321 and a plurality of heat transfer fins 322 surrounding the annular heating pipe 321, and the extending direction of the heat transfer fins 322 is toward the center of the air duct 20. So set up, heat transfer piece 322 can play the effect to hot-blast direction, with the center of hot-blast direction container body 110, can also effectual increase heating area improve heating efficiency.

In some embodiments, as shown in fig. 12 and 26, in the case where the heating member 320 includes the heat transfer sheet 322, the heat transfer sheet 322 is a circular sheet, and a plurality of heat transfer sheets 322 are disposed at intervals on the outer circumference of the annular heat generating pipe 321 along the circumferential direction of the annular heat generating pipe 321. The wafer has simple structure and is easy to process.

In some embodiments, as shown in fig. 12 and 26, the heat transfer fins 322 are spirally wound around the outer circumference of the annular heat-generating pipe 321 along the circumferential direction of the annular heat-generating pipe 321. The spiral heat transfer fins 322 can be tightly wound around the periphery of the annular heating tube 321, which is more favorable for assembly with the annular heating tube 321.

In some embodiments, as shown in fig. 7, 10, 11 and 12, the annular heating tube 321 includes a cold end 3214 and a wiring portion 3215, an avoidance port 211 is provided on the upper duct housing 210, and the wiring portion 3215 extends from the avoidance port 211 to the outside of the upper duct housing 210 for connecting a power supply.

In some embodiments, as shown in fig. 1 to 3 and 19, 20, 21, the cooking appliance further includes: the lid 120 can be covered on the container body 110, the lid 120 includes a handle 122 disposed on the lid body 121, and the handle 122 is provided with an air vent 1221 communicated with the inside of the container body 110. The hot air after cooking can be exhausted through the air outlet 1221 of the handle 122, so as to form the external circulation air duct 20, so that fresh air is blown into the container body 110 every time, and the food materials are not tainted.

In some embodiments, as shown in fig. 1 to 3 and 19, 20 and 21, the vent hole 1221 is formed in the side wall of the handle 122 to allow hot air to be discharged toward the side, so that the user is prevented from being easily scalded by exhausting air straight upward, and the user can select the orientation of the vent hole 1221 to facilitate the cooking operation.

In some embodiments, as shown in fig. 6, 7, 8, 9, the cooking appliance further comprises: the heat preservation cover 40 is arranged below the air duct 20, and the heat preservation cover 40 is used for heat insulation; the heating disc assembly 50 is arranged on the heat preservation cover 40, the air duct 20 is annular, and the heating disc assembly 50 is located in the middle of the air duct 20 and can heat the container body 110.

In the embodiments, the heat-insulating cover 40 can insulate heat, prevent heat from overflowing and improve heating efficiency; further, the heating disc assembly 50 is disposed in the middle of the air duct 20, so that the heating disc assembly 50 can be used for heating the container body 110 mounted above the heating disc assembly, and double heating of the food material in the container body 110 is achieved. Or, after the container body 110 is taken down, the heating disc assembly can be used for heating the small pot placed on the heating disc assembly, and is used for cooking, steaming, frying food materials and the like, so that the multifunctional container is multifunctional.

It should be noted that the heating plate assembly 50 and the heating member 320 may work simultaneously or separately, and the user may select the heating plate assembly according to specific requirements, so as to expand the application range of the product.

In some embodiments, optionally, the heat insulation cover 40 is provided with a flange and a fixing portion, the flange is used for expanding a volume of a cavity formed by the lower air duct shell 220 and the heat insulation cover 40, and provides an enough accommodating space for the heating plate assembly 50, and the fixing portion is used for being fixedly connected with the lower air duct shell 220, and specifically can be fastened on the lower air duct shell 220 by a fastening member such as a screw passing through the fixing portion.

In some embodiments, as shown in fig. 26, an included angle α 9 between an extending direction of one of the heat transfer sheets 322, which can be tangential to an extension line of the axis of the wind-supplying member 310, and the axis of the wind-supplying member 310 is an obtuse angle. With such an arrangement, the guiding resistance of the airflow blown by the air supply member 310 can be reduced, and the airflow can flow more smoothly.

In some embodiments, the diameter of the ring-shaped heat-generating pipe 321 is 5mm to 8mm. If the pipe diameter is too large, the air duct 20 needs to be enlarged at the same time, so that the whole machine is overstaffed and the cost is increased; if the pipe diameter is too small, the heat dissipation area is small, the heat is concentrated, and the annular heating pipe 321 is easily damaged.

In some embodiments, the heat transfer fins 322 have a diameter of 10mm to 25mm. If the diameter of the heat transfer sheet 322 is too large, the air duct 20 needs to be enlarged at the same time, so that the whole machine is too bulky and the cost is increased; however, if the diameter of the heat transfer fin 322 is too small, the heat dissipation area is small, the heat is concentrated, and the annular heat pipe 321 is easily damaged.

In some embodiments, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the cooking appliance further includes a base assembly 60, the base assembly 60 includes a base 610 and an upper cover 620, the upper cover 620 covers the base 610 and encloses with the base 610 to form a containing cavity, the air duct 20 is disposed in the containing cavity, a through hole for containing the pot assembly 10 is formed in the middle of the upper cover 620, and the pot assembly 10 is detachably mounted on the base assembly 60 through the through hole.

In these embodiments, the air duct 20 is disposed in the base assembly 60, the pot assembly 10 is placed on the base assembly 60, and the upper and lower parts can be separated, so that when cooking, the heating element 320 and/or the heating plate assembly 50 in the base assembly 60 can heat the container body 110, and the hot air can rise, so that the heating effect is more uniform.

It is understood that the exterior of the container body 110 may have an outer shell for preventing heat from being diffused, preventing burn, etc.; the container body 110 internally forms a cooking cavity 111. In addition, the shell can be provided with a handle, so that the shell is convenient to take and place.

Further, optionally, the upper cover 620 is connected to the base 610 by fasteners such as screws.

In some embodiments, optionally, the cooking appliance is an air fryer.

Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that such modifications and variations would still fall within the spirit and scope of the embodiments of the present invention, as defined by the appended claims, as seen by those skilled in the art.

Claims (15)

1. A cooking appliance, comprising:

the cookware assembly (10), the cookware assembly (10) comprises a container body (110) and a frying plate (140), a cooking cavity (111) is arranged in the container body (110), and the frying plate (140) is detachably arranged in the cooking cavity (111);

the air duct (20) is arranged around the container body (110), the air duct (20) is provided with air outlets (250) distributed circumferentially, container air inlets (112) distributed circumferentially are arranged on the side wall of the container body (110), the air outlets (250) are arranged opposite to the container air inlets (112), and the frying plate (140) is positioned above the container air inlets (112);

a hot air assembly including an air supply member (310) and a heating member (320), the hot air assembly being provided in the air duct (20), the air supply member (310) being capable of blowing air heated by the heating member (320) in the air duct (20) into the cooking chamber (111).

2. The cooking appliance of claim 1,

the container body (110) comprises a main side wall (114), a contraction part (113) and a connecting section (115) connected between the main side wall (114) and the contraction part (113), the contraction part (113) is positioned below the main side wall (114), the outer diameter of the contraction part (113) is smaller than that of the main side wall (114), and the container air inlet (112) is arranged on the contraction part (113);

the frying plate (140) is supportable on the connecting section (115); or a plurality of supporting columns (116) are arranged on the connecting section (115) at intervals, and the frying plate (140) can be supported on the supporting columns (116).

3. The cooking appliance of claim 1,

the length of the container air inlet (112) in the vertical direction is greater than the length of the air outlet (250) in the vertical direction, and the air outlet (250) is located in the range of the container air inlet (112) in the vertical direction.

4. The cooking appliance of claim 1,

an annular air cavity (260) and a mounting cavity (270) located on the periphery of the air cavity (260) are formed in the air duct (20), one end of the mounting cavity (270) is communicated to the outside, the other end of the mounting cavity is communicated with the air cavity (260), the air supply piece (310) is arranged in the mounting cavity (270), and the air outlet surface of the air supply piece (310) faces the air cavity (260).

5. The cooking appliance according to claim 4, wherein the minimum distance between the air supply member (310) and the annular center line of the air cavity (260) has a value in the range of 5mm to 25mm.

6. The cooking appliance of claim 1,

the heating member (320) includes an annular heat generating pipe (321); or

The heating element (320) comprises an annular heating pipe (321) and a plurality of heat transfer sheets (322) arranged around the annular heating pipe (321), and the extending direction of the heat transfer sheets (322) faces to the center of the air duct (20).

7. The cooking appliance of claim 6,

under the condition that the heating element (320) comprises a heat transfer sheet (322), the heat transfer sheet (322) is a circular sheet, and a plurality of heat transfer sheets (322) are arranged on the periphery of the annular heating pipe (321) at intervals along the circumferential direction of the annular heating pipe (321); or

The heat transfer sheet (322) is spirally wound on the periphery of the annular heating tube (321) along the circumferential direction of the annular heating tube (321).

8. The cooking appliance of claim 7,

the included angle between the extending direction of one heat transfer sheet (322) which can be tangent to the extension line of the axis of the air supply part (310) in the plurality of heat transfer sheets (322) and the axis of the air supply part (310) is an obtuse angle; and/or

The pipe diameter of the heating pipe is 5mm to 8mm; and/or

The heat transfer sheet (322) has a diameter of 10mm to 25mm.

9. The cooking appliance according to any one of the claims 1 to 8, wherein the air duct (20) comprises:

the cookware comprises an upper air duct shell (210) and a lower air duct shell (220), wherein the upper air duct shell (210) and the lower air duct shell (220) enclose to form a cavity, and one side, facing the cookware assembly (10), of the enclosed upper air duct shell (210) and the enclosed lower air duct shell (220) is provided with a circle of openings;

the air guide sheet (230) is arranged in the upper air duct shell (210), the air guide sheet (230) comprises an air guide part (231), the air guide part (231) gradually inclines downwards towards the direction of the opening and extends into the opening, and the air guide part (231) is used for guiding the annularly rotating air downwards and obliquely into the cooker assembly (10).

10. The cooking appliance according to claim 9, wherein the air duct (20) further comprises:

the air guide ring (240) is located at the opening, the lower end of the air guide ring (240) is abutted against the lower air duct shell (220), the air guide ring (240) comprises a ring body (241), a top wall (243) of the ring body and a plurality of supporting blocks (242) which are convexly arranged on the top wall (243) of the ring body, and the supporting blocks (242) are abutted against the lower surface of the air guide part (231) so as to form the air outlet (250) between the air guide part (231) and the air guide ring (240).

11. The cooking appliance of claim 10,

the top wall (243) of the ring body extends downwards from outside to inside in an inclined manner and is matched with the air guide part (231) to form the air outlet (250) facing downwards in an inclined manner;

the lower surface of the air guide part (231) is substantially parallel to the top wall (243) of the ring body, and the distance between the lower surface of the air guide part (231) and the top wall (243) of the ring body is 1.5-5 mm;

the length H2 of the container air inlet (112) in the vertical direction is 2mm to 7mm;

the included angle between the lower surface of the air guide part (231) and the vertical direction is 20-45 degrees.

12. The cooking appliance of claim 11,

the top end of the ring body (241) is higher than the bottom end of the air guide part (231) so that the ring body (241) and the air guide part (231) are partially structurally staggered;

the staggered size of the ring body (241) and the air guide part (231) is 0.5mm to 5mm.

13. The cooking appliance of claim 10,

the number of the supporting blocks (242) is more than or equal to 3; and/or

The distance between two adjacent supporting blocks (242) is more than or equal to 20mm; and/or

The ratio of the projection area of the air outlet (250) on the horizontal plane to the projection area of the supporting block (242) on the horizontal plane is 10-200.

14. The cooking appliance according to any one of claims 1 to 8, wherein the pot assembly (10) further comprises:

the pot cover (120) can be covered on the container body (110), the pot cover (120) comprises a cover body (121), a lifting handle (122) is arranged on the cover body (121), and an exhaust hole (1221) communicated with the inside of the container body (110) is formed in the lifting handle (122).

15. The cooking appliance according to any one of claims 1 to 8, wherein the cooking appliance further comprises a base assembly (60), the base assembly (60) comprises a base (610) and an upper cover (620), the upper cover (620) covers the base (610) and encloses with the base (610) to form a containing cavity, the air duct (20) is arranged in the containing cavity, the upper cover (620) has a through hole in the middle for containing the pot assembly (10), and the pot assembly (10) is detachably mounted on the base assembly (60) through the through hole.

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