CN115054134A - Cooking utensil - Google Patents

Abstract

The application provides a cooking appliance, includes: a pot assembly including a container body having a cooking cavity; the air duct is arranged around the container body and provided with a first air outlet and a second air outlet which are circumferentially distributed, the first air outlet and the second air outlet face the side wall direction of the container body, and the first air outlet is positioned below the second air outlet; the side wall of the container body is provided with first container air inlets and second container air inlets, the first container air inlets and the second container air inlets are circumferentially distributed, the first air outlets are arranged opposite to the first container air inlets, and the second air outlets are arranged opposite to the second 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. First air outlet and second air outlet are upper and lower distribution, can make this internal flow of hot-air in the container, distribute more evenly for eat material maturity unanimously.

Description

cooking utensils

technical field

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

Background technique

The existing air fryer includes a housing with a built-in cooking cavity, a hot air cavity is arranged on the top of the cooking cavity, a hot air assembly is arranged in the hot air cavity, the hot air assembly includes a fan and a heating element, and the hot air generated by the hot air assembly is input into the cooking cavity to heat the pot food. However, since the entire wind direction is directly downward, under the influence of the fan, there is a rotating wind flow in the circumferential direction, which makes it difficult for the food at the center of the frying board to be fully heated, resulting in uneven coloring of the food. , there is a phenomenon that some ingredients are overheated and some ingredients are not fully heated, thus affecting the overall baking effect.

SUMMARY OF THE INVENTION

The present application aims to at least solve the above-mentioned problems in the prior art or related technologies that the wind generated by the fan blows vertically downwards, resulting in a rotating wind flow in the circumferential direction, and the wind flow entering the pot is uneven, which affects the overall baking effect.

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 utensil, comprising: a pot assembly including a container body having a cooking cavity; an air duct surrounding the outer periphery of the container body, and the air duct has a circumferentially distributed first An air outlet and a circumferentially distributed second air outlet, the first air outlet and the second air outlet face the side wall of the container body, and the first air outlet is located below the second air outlet; wherein, on the side wall of the container body A circumferentially distributed first container air inlet and a circumferentially distributed second container air inlet are provided, the first air outlet is arranged opposite to the first container air inlet, and the second air outlet is arranged opposite to the second container air inlet; the hot air assembly , including an air supply part and a heating part, the hot air component is arranged in the air duct, and the air supply part can blow the air heated by the heating part in the air duct into the cooking cavity.

The cooking utensil proposed in the embodiments of this aspect includes a pot assembly, an air duct, and a hot air assembly. The pot assembly can be used to hold food, etc. The hot air assembly releases the hot air from the first air outlet and the second air outlet located in the inner ring of the air duct. Blowing out, the first air outlet and the second air outlet are distributed in the circumferential direction, and the first air outlet and the second air outlet are respectively arranged on the side wall of the container body. Correspondingly, the air intake can be realized along the circumferential direction of the container body, and the circumferential air intake can make the air flow blow toward the inner center of the container body, and the air flow in the container body is evenly distributed; and the first air outlet is located below the second air outlet. That is, the first air outlet and the second air outlet form two air outlets that are distributed one above the other, which can make the flow and distribution of hot air in the container body more uniform, so that the ingredients are heated evenly, the maturity is consistent, and the cooking effect is good. And it can realize multi-sided heating of ingredients, thereby improving heating efficiency and shortening cooking time.

In addition, the cooking utensils provided by the above embodiments of the present application may also have the following additional technical features:

In some embodiments, the pan assembly further includes: a fryer plate detachably disposed in the cooking cavity, the fryer plate is located above the air inlet of the first container and below the air inlet of the second container.

In these embodiments, by arranging the first container air inlet and the second container air inlet on the container body, the hot air can simultaneously heat the ingredients placed on the frying board from the upper and lower sides, so that the upper and lower surfaces of the ingredients are heated simultaneously, Therefore, the ingredients are heated more evenly, the maturity is consistent, and the cooking effect is good; and because the air inlet of the first container and the air inlet of the second container are not facing the frying board, it can prevent the hot air from blowing directly to the ingredients placed on the frying board. Burnt to further enhance the cooking effect.

In some embodiments, the second air outlet is inclined downward, and the inclination angle of the second air outlet is 30° to 60°.

In these embodiments, setting the second air outlet as an inclined structure can play the role of guiding the air flow inside the air cavity, so that the annular rotating air flow in the air cavity can be guided obliquely downward into the container body, so that the air flow can flow to the air flow in the air cavity. The ingredients on the frying board of the container body. Further, the inclination angle of the second air outlet is defined to be in the range of 30° to 60°, within this range, the hot air blown into the container body through the first air outlet can reach the center of the distribution position of the ingredients, And overcome the upward resistance of the hot air entering the air inlet of the first container, so that the interior of the container body is heated evenly; specifically, if the inclination angle is too small, the wind will reach the surface of the food material in advance, and will not reach the food material in the container body. The center range will form a rotation inside the container body, which will then be thrown to the side wall of the container body, resulting in uneven heating, resulting in a lower central temperature than the outer circumference; and if the inclination angle is too large, the wind will delay reaching the center range of the food, which will exceed The center range of the ingredients in the container body is then rotated inside the container body, and then thrown to the side wall of the container body, resulting in uneven heating, resulting in a lower central temperature than the outer circumference.

In some embodiments, the distance between the first air outlet and the second air outlet in the vertical direction is 40 mm to 80 mm. Within this range, it can be ensured that the distance between the first air outlet and the second air outlet is appropriate, and the distance between the first air outlet and the second air outlet will not be too close to the ingredients, which will cause problems such as burnt ingredients, and will not be too far away. As a result, the heating efficiency is low, the cooking time is long, and the ingredients are difficult to cook.

In some embodiments, the length of the first air outlet in the vertical direction is smaller than the length of the second air outlet in the vertical direction. Since the hot air rises upward, the second air outlet needs to blow downward obliquely, and the required pressure is higher, so the length of the second air outlet in the vertical direction is larger.

In some embodiments, the length of the first air outlet in the vertical direction is 1.5 mm to 5 mm. Within this range, the air volume can be ensured, and the wind speed through the first air outlet can be made larger, so that the air flow can be distributed to most of the space in the container body and the heating efficiency can be guaranteed; If the length in the vertical direction is too large, the flow rate of the wind will increase, the wind speed will decrease, and the hot air will not be able to blow to the surface of the ingredients; if the opening height is too small, the flow rate will become smaller, the wind speed will increase, and the heating efficiency will be low.

In some embodiments, the length of the second air outlet in the vertical direction is 2 mm to 6 mm. Within this range, the air volume can be ensured, and the wind speed through the second air outlet can be made larger, so that the air flow can be distributed to most of the space in the container body, and the heating efficiency can be guaranteed; If the length in the vertical direction is too large, the flow rate of the wind will increase, the wind speed will decrease, and the hot air will not be able to blow to the surface of the ingredients; if the opening height is too small, the flow rate will become smaller, the wind speed will increase, and the heating efficiency will be low.

In some embodiments, an annular air cavity and an installation cavity located at the outer periphery of the air cavity are formed in the air duct, one end of the installation cavity is communicated with the outside, and the other end is communicated with the air cavity, and the air supply member is arranged in the installation cavity for supplying The air outlet surface of the air piece faces the air cavity.

In these embodiments, the air supply member blows fresh air from the outside into the annular air cavity, and under the action of wind pressure, the air will rotate clockwise or counterclockwise in the air cavity (clockwise or counterclockwise and the fan setting position related), and is blown out from the first air outlet and the second air outlet located in the inner ring of the air duct, and then enters the container body through the first container air inlet and the second container air inlet respectively, and blows toward the inner center of the container body , so that the air distribution in the container body is more uniform.

In some embodiments, the air duct includes: an upper air duct housing and a lower air duct housing, the upper air duct housing and the lower air duct housing are enclosed to form an air cavity and an installation cavity; a side of the upper air duct housing facing the cookware assembly has Two circles of air vents distributed up and down, the vents are connected with the air cavity, the bottom circle of vents forms the first air outlet, and the upper circle of vents forms the second air outlet.

In these embodiments, the upper air duct housing and the lower air duct housing are enclosed to form an air cavity and an installation cavity, a heating element is installed in the air cavity, and an air supply element is installed in the installation cavity; further, the upper air duct case faces the container One side of the main body has two circles of air vents, which form the first air outlet and the second air outlet respectively. The processing of the air outlet and the second air outlet is simple, the components of the air duct are reduced, and the structure of the air duct is simplified, which is beneficial to the production of the air duct in terms of assembly and processing.

In some embodiments, the top wall and the bottom wall of the second air outlet are gradually inclined downward toward the direction of the container body, so as to guide the annularly rotating air obliquely downward into the cookware assembly. By arranging the top wall and bottom wall of the second air outlet to gradually slope downward toward the container body, an air outlet facing obliquely downward is formed. Such a processing structure is simple and easy to implement, and the second air outlet facing obliquely downward can be Better direct the direction of the airflow so that it flows towards the fryer plate in the vessel body.

In some embodiments, the length of the first container air inlet in the vertical direction is greater than the length of the first air outlet in the vertical direction, and the first air outlet is located within the range of the length of the first container air inlet in the vertical direction . In this way, the air inlet of the first container can be aligned with the first air outlet, and the air flowing out of the first air outlet can directly enter the air inlet of the first container, thereby reducing hot air leakage as much as possible and improving thermal efficiency.

In some embodiments, the length of the second container air inlet in the vertical direction is greater than the length of the second air outlet in the vertical direction, and the second air outlet is located within the range of the vertical length of the second container air inlet . In this way, the air inlet of the second container can be aligned with the second air outlet, and the air flowing out of the second air outlet can directly enter the air inlet of the second container, thereby reducing hot air leakage as much as possible and improving thermal efficiency.

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

In some embodiments, the heating element includes an annular heat pipe and a plurality of heat transfer fins surrounding the outer periphery of the annular heat pipe, and the extension direction of the heat transfer fins is toward the center of the air duct. With this arrangement, the heat transfer sheet can play the role of guiding the hot air, guide the hot air to the center of the container body, and can also effectively increase the heating area and improve the heating efficiency.

In some embodiments, when the heating element includes heat transfer fins, the heat transfer fins are circular sheets, and a plurality of heat transfer fins are arranged on the outer periphery of the annular heating pipe at intervals along the circumferential direction of the annular heating pipe. The wafer has a simple structure and is easy to process.

In some embodiments, the heat transfer sheet is spirally wound around the outer circumference of the annular heating pipe along the circumferential direction of the annular heating pipe. The helical heat transfer fins can be tightly wound around the outer circumference of the annular heating pipe, which is more conducive to the assembly with the annular heating pipe.

In some embodiments, the included angle between the extension direction of one of the plurality of heat transfer fins that can be tangent to the axis extension of the air supply member and the axis of the air supply member is an obtuse angle. With this arrangement, the guiding resistance of the airflow blown by the air supply member can be reduced, so that the airflow can flow more smoothly.

In some embodiments, the diameter of the annular heating pipe is 5 mm to 8 mm. If the pipe diameter is too large, the air duct needs to be enlarged at the same time, which makes the whole machine bloated and the cost increases; if the pipe diameter is too small, the heat dissipation area is small, the heat is concentrated, and the annular heating pipe is easily damaged.

In some embodiments, the heat transfer fins are 10 mm to 25 mm in diameter. If the diameter of the heat transfer fin is too large, the air duct needs to be enlarged at the same time, which makes the whole machine bloated and the cost increases; if the diameter of the heat transfer fin is too small, the heat dissipation area is small, the heat is concentrated, and the annular heating tube is easily damaged.

In some embodiments, the cooking utensil further includes: a thermal insulation cover installed below the air duct, the thermal insulation cover is used for heat insulation; a heating plate assembly, disposed on the thermal insulation cover, the air duct is annular, and the heating plate assembly is located at the bottom of the air duct In the middle, the container body can be heated.

In these embodiments, the thermal insulation cover can isolate heat, prevent heat from overflowing, and improve heating efficiency; further, a heating plate assembly is arranged in the middle of the air duct, so that the heating plate assembly can be used to heat the container body installed above it, Double heating is achieved for the ingredients in the container body. Alternatively, after the container body is removed, the heating plate assembly can be used to heat a small pot placed on it for cooking, steaming, frying, etc., so that one machine can be used for multiple purposes.

In some embodiments, the cookware assembly further includes: a cooker cover that can be closed on the container body, the cooker cover includes a handle provided on the cover body by the cover body, and the handle is provided with an exhaust that communicates with the interior of the container body hole. The hot air after cooking can be exhausted through the exhaust holes on the handle to form an external circulation air duct, so that every time the inside of the container body is blown fresh air, the ingredients do not smell.

In some embodiments, the cooking appliance further includes a base assembly, the base assembly includes a base and an upper cover, the upper cover is closed on the base and enclosed with the base to form a accommodating cavity, an air duct is arranged in the accommodating cavity, and a middle part of the upper cover has A through hole for accommodating the cookware assembly, the cookware assembly passing through the through hole and being detachably mounted on the base assembly.

In these embodiments, the air duct is provided in the base assembly, and the cookware assembly is placed on the base assembly to form a structure that can be separated from the top and bottom. During cooking, the heating element and/or the heating plate assembly in the base assembly can interact with the cookware. When the component is formed and heated, the hot air will rise, making the heating effect more uniform.

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

Description of drawings

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

1 is a schematic structural diagram of a cooking utensil provided according to an embodiment of the present invention;

2 is a schematic cross-sectional structure diagram of a cooking appliance provided according to an embodiment of the present invention;

3 is another schematic cross-sectional structure diagram of a cooking appliance provided according to an embodiment of the present invention;

Fig. 4 is a partial enlarged view at I place in Fig. 3;

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

Fig. 6 is the sectional structure schematic diagram of the structure in Fig. 5;

Figure 7 is a top view of the structure in Figure 5;

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

Fig. 9 is the exploded structure schematic diagram of the structure in Fig. 5;

10 is a schematic structural diagram of an upper air duct housing of a cooking appliance provided according to an embodiment of the present invention;

11 is another schematic structural diagram of an upper air duct housing of a cooking appliance provided according to an embodiment of the present invention;

12 is a schematic cross-sectional structural diagram of an upper air duct housing of a cooking appliance provided according to an embodiment of the present invention;

13 is a schematic structural diagram of a heating element of a cooking appliance provided according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a down-air duct housing of a cooking appliance provided according to an embodiment of the present invention;

Fig. 15 is another schematic structural diagram of a down-air duct housing of a cooking appliance provided according to an embodiment of the present invention;

16 is a schematic structural diagram of a heating plate assembly of a cooking appliance provided according to an embodiment of the present invention;

17 is another schematic structural diagram of a heating plate assembly of a cooking appliance provided according to an embodiment of the present invention;

18 is a schematic structural diagram of a heat preservation cover of a cooking appliance provided according to an embodiment of the present invention;

Fig. 19 is a schematic structural diagram of a pan assembly of a cooking appliance provided according to an embodiment of the present invention;

Fig. 20 is a schematic cross-sectional structural view of the structure in Fig. 19, and shows the flow path of the airflow;

Figure 21 is a cross-sectional structural schematic diagram of the structure in Figure 19;

22 is a schematic structural diagram of a container body of a cooking appliance provided according to an embodiment of the present invention;

Figure 23 is a cross-sectional structural schematic diagram of the structure in Figure 22;

24 is a schematic diagram of air flow in an air duct of a cooking appliance provided according to an embodiment of the present invention;

Fig. 25 is a schematic diagram of air flow at a heating element of a cooking appliance according to an embodiment of the present invention.

Figure 1 to Figure 25 description of the reference numerals:

10 Cookware assembly, 110 Container body, 1101 Air inlet of the first container, 1102 Air inlet of the second container, 111 Cooking cavity, 113 Reduction part, 120 Pot lid, 121 Cover body, 122 Handle, 1221 Air vent, 140 Fryer plate,

20 air duct, 210 upper air duct housing, 211 escape opening, 220 lower air duct housing, 240 first air outlet, 250 second air outlet, 260 air cavity, 270 installation cavity,

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

40 thermal insulation cover, 50 heating plate assembly, 510 heating plate, 520 thermostat,

60 base assembly, 610 base, 620 cover.

Detailed ways

The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatus and/or systems described herein. However, various changes, modifications and equivalents of the methods, apparatus and/or systems described herein will be apparent upon understanding of the disclosure of the present application. For example, the orders of operations described herein are examples only, and are not limited to those orders set forth herein, except that operations must occur in a particular order, as will be apparent upon understanding the disclosure of this application That was changed. Furthermore, descriptions of features known in the art may be omitted for increased clarity and conciseness.

The features described herein may be implemented 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 but a few of the many possible ways of implementing the methods, devices and/or systems described herein, which would be after an understanding of the disclosure of the present application. clearly.

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

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 restricted 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, reference to a first member, first component, first region, first layer or first portion in the examples described herein could also be termed a second member, second member, first layer or first portion without departing from the teachings of the examples. Component, second area, second layer or second section.

In the specification, when an element such as a layer, region or substrate is described as being "on", "connected to" or "coupled to" another element, the element can be directly "on" the other element, "Connected to" or "coupled to" another element directly, or one or more intervening other elements may be present. In contrast, when an element is described 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 used to describe various examples only and is not to be used to limit the disclosure. The singular forms are also intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "including" and "having" indicate the presence of the recited features, quantities, operations, components, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, components , elements and/or combinations thereof. The term "plurality" refers to any number of two and more.

The definitions of orientation words such as "upper", "bottom", "top" and "bottom" in this application are all based on the orientation definitions of the cooking utensils when they are placed upright under normal use.

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 invention. Unless explicitly so defined herein, terms such as those defined in general dictionaries should be construed to have meanings consistent with their meanings in the context of the relevant art and the present invention, and should not be idealized or overly formalized explained figuratively.

Also, in the description of the examples, when it is deemed that a detailed description of a well-known related structure or function would cause an obscure explanation of the present invention, such detailed description will be omitted.

The cooking appliances of some embodiments of the present application will be described below with reference to FIGS. 1 to 25 .

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 20, Fig. 21, Fig. 22 and Fig. 23, a first aspect of the present invention provides a cooking utensil, comprising: a pot assembly 10, The cookware assembly 10 includes a container body 110 having a cooking cavity 111; an air duct 20 is arranged around the outer periphery of the container body 110, and the air duct 20 has a circumferentially distributed first air outlet 240 and a circumferentially distributed second air outlet 250, The first air outlet 240 and the second air outlet 250 face the side wall of the container body 110, and the first air outlet 240 is located below the second air outlet 250; A container air inlet 1101 and a circumferentially distributed second container air inlet 1102, the first air outlet 240 is arranged opposite to the first container air inlet 1101, and the second air outlet 250 is arranged opposite to the second container air inlet 1102; the hot air assembly, It includes an air supply member 310 and a heating member 320 , the hot air assembly is disposed in the air duct 20 , and the air supply member 310 can blow the air heated by the heating member 320 in the air duct 20 into the cooking cavity 111 .

The cooking utensil proposed in the embodiment of this aspect includes a pot assembly 10 , an air duct 20 and a hot air assembly. The pot assembly 10 can be used to hold food and the like. 240 and the second air outlet 250 are blown out, the first air outlet 240 and the second air outlet 250 are distributed in the circumferential direction, and the first air outlet 240 and the second air outlet 250 are respectively connected to the side walls of the container body 110. The first container air inlet 1101 and the second container air inlet 1102 correspond to each other, so that the circumferential air intake can be realized along the container body 110, and the circumferential air intake can make the air flow toward the inner center of the container body 110. The distribution is uniform; and the first air outlet 240 is located below the second air outlet 250, that is, the first air outlet 240 and the second air outlet 250 form two air outlets that are distributed up and down, which can make the hot air in the container body. The flow and distribution in 110 are more uniform, so that the ingredients are heated evenly, the maturity is consistent, the cooking effect is good, and the multi-sided heating of the ingredients can be realized, thereby improving the heating efficiency and shortening the cooking time.

In some embodiments, optionally, the first air outlet 240 and/or the second air outlet 250 may be openings continuously distributed in the circumferential direction. In this case, the first air outlet 240 and/or the second air outlet 250 are annular The air outlet can also be an opening distributed at intervals in the circumferential direction, and the number of openings is multiple; similarly, the air inlet 1101 of the first container and/or the air inlet 1102 of the second container can be continuously distributed openings in the circumferential direction. At this time, The first container air inlet 1101 and/or the second container air inlet 1102 are annular air inlets; the first container air inlet 1101 and/or the second container air inlet 1102 may also be circumferentially spaced openings, and the number of openings is large. indivual.

Regarding the specific structure of the cookware assembly 10 , in some embodiments, as shown in FIGS. 2 , 3 , 4 , and 20 , the cookware assembly 10 further includes: a frying plate 140 , and the frying plate 140 is detachably arranged on the In the cooking cavity 111 , the frying plate 140 is located above the air inlet 1101 of the first container and below the air inlet 1102 of the second container.

In these embodiments, by arranging the first container air inlet 1101 and the second container air inlet 1102 on the container body 110, the hot air can simultaneously heat the food material placed on the frying board 140 from the upper and lower sides, so that the upper and lower surfaces of the food material can be heated simultaneously. are heated, so that the ingredients are heated more evenly, the maturity is consistent, and the cooking effect is good; and because the air inlet 1101 of the first container and the air inlet 1102 of the second container are not directly facing the frying board 140, it can prevent the hot air from directly blowing to the The ingredients on the frying plate 140 are scorched, which further improves the cooking effect.

Specifically, as an example, the frying plate 140 is provided with a plurality of oil leakage holes, which can filter oil and prevent oil from accumulating at the bottom of the food, which is too greasy.

Further, in order to enable the hot air blown from the second air outlet 250 located above to blow on the food, in some embodiments, as shown in FIG. 4 and FIG. 12 , the second air outlet 250 is inclined downward, and the first The inclination angle α8 of the second air outlet 250 is 30° to 60°.

In these embodiments, setting the second air outlet 250 as an inclined structure can play the role of guiding the air flow inside the air cavity 260, so that the annularly rotating air flow in the air cavity 260 can be guided obliquely downward into the container body 110, so that the air flow can be It can flow to the food on the frying board 140 of the container body 110 . Further, the inclination angle α8 of the second air outlet 250 is defined to be in the range of 30° to 60°, and within this range, the hot air blown into the container body 110 through the first air outlet 240 can reach the food distribution position, and overcome the upward resistance of the hot air entering the air inlet 1101 of the first container, so that the interior of the container body 110 is heated evenly; When the food reaches the center of the container body 110, a rotation will be formed inside the container body 110, and then it will be thrown to the side wall of the container body 110, resulting in uneven heating, resulting in the central temperature being lower than the outer circumference; and if the inclination angle is too large, the wind will Delayed reaching the center of the food will exceed the center of the container body 110 , and then rotate inside the container body 110 , and then fling to the side wall of the container body 110 , resulting in uneven heating, resulting in a lower central temperature than the outer circumference.

For specific settings of the first air outlet 240 and the second air outlet 250 , in some embodiments, as shown in FIG. 12 , the distance H3 between the first air outlet 240 and the second air outlet 250 along the vertical direction is 40 mm to 80mm. Within this range, it can be ensured that the distance H3 between the first air outlet 240 and the second air outlet 250 is appropriate, and the distance to the ingredients will not be too close due to being too close, thereby causing problems such as burning of the ingredients. Because it is too far, the heating efficiency is low, resulting in long cooking time and difficult to cook the ingredients.

In some embodiments, as shown in FIG. 12 , the length W1 of the first air outlet 240 in the vertical direction is smaller than the length W2 of the second air outlet 250 in the vertical direction. Since the hot air rises upward, the second air outlet 250 needs to blow downward obliquely, and the required pressure is higher, so the length W2 of the second air outlet 250 in the vertical direction is set to be larger.

As shown in FIG. 12 , in some embodiments, the length W1 of the first air outlet 240 in the vertical direction is 1.5 mm to 5 mm. Within this range, the air volume can be guaranteed, and the wind speed through the first air outlet 240 can be made larger, so that the air can be distributed to most of the space in the container body 110 to ensure the heating efficiency; If the length W1 of the tuyere 240 in the vertical direction is too large, the flow of the wind increases, the wind speed decreases, and the hot air cannot blow to the surface of the food; if the height is too small, the flow decreases, the wind speed increases, and the heating efficiency is low.

In some embodiments, the length of the first container air inlet 1101 in the vertical direction is 2 mm to 7 mm. Within this range, it can better match the size of the first air outlet 240 and be slightly larger than the first air outlet 240, so as to reduce the leakage of hot air as much as possible.

As shown in FIG. 12 , in some embodiments, the length W2 of the second air outlet 250 in the vertical direction is 2 mm to 6 mm. Within this range, the air volume can be ensured, and the wind speed through the second air outlet 250 can be made larger, so that the air flow can be distributed to most of the space in the container body 110 to ensure the heating efficiency; If the length W2 of the tuyere 250 in the vertical direction is too large, the flow rate of the wind increases, the wind speed decreases, and the hot air cannot be blown to the surface of the food; if the height is too small, the flow rate decreases, the wind speed increases, and the heating efficiency is low.

In some embodiments, the length of the second container air inlet 1102 in the vertical direction is 2 mm to 7 mm. Within this range, it can better match the size of the second air outlet 250 and be slightly larger than the second air outlet 250, so as to reduce the leakage of hot air as much as possible.

Regarding the specific structure of the air duct 20 , in some embodiments, as shown in FIGS. 5 and 6 , the air duct 20 is formed with an annular air cavity 260 and an installation cavity 270 located on the outer periphery of the air cavity 260 . One end is communicated with the outside, and the other end is communicated with the air cavity 260 .

In these embodiments, the air supply member 310 blows fresh air from the outside into the annular air cavity 260, and under the action of wind pressure, the air will rotate clockwise or counterclockwise in the air cavity 260 and the fan The setting position is related, and is blown out from the first air outlet 240 and the second air outlet 250 located in the inner circle of the air duct 20, and then enters the inside of the container body 110 through the first container air inlet 1101 and the second container air inlet 1102 respectively, and Blowing toward the inner center of the container body 110 makes the distribution of the airflow in the container body 110 more uniform.

In some embodiments, the air outlet direction of the air supply member 310 is tangent to the inner wall of the air cavity 260 . This arrangement makes the air blown by the air supply member 310 flow more smoothly in the annular air cavity 260 and reduces wind resistance.

In some embodiments, as shown in FIG. 24 , in the cross section in the horizontal direction, the minimum distance L7 between the air supply member 310 and the annular centerline of the air cavity 260 ranges from 5 mm to 25 mm. Within this range, a certain safety distance can be kept between the air supply member 310 and the heating member 320, so as to prevent the air supply member 310 from being too close to the heating member 320 and the temperature of the air supply member 310 from being damaged due to excessive temperature.

It should be noted that since the air cavity 260 is annular, any cross section of the air cavity 260 is circular, and the annular centerline of the air cavity 260 is a circle formed by the centers of any cross sections of the air cavity 260 .

For the specific structure of the air duct 20, in some embodiments, as shown in FIGS. 5, 6, 7, 8, 9, 10, 11, 12, 14 and 15, the air duct 20 It includes: an upper air duct housing 210 and a lower air duct housing 220, and the upper air duct housing 210 and the lower air duct housing 220 enclose an air cavity 260 and an installation cavity 270; the upper air duct housing 210 has a side facing the cookware assembly 10. The two upper and lower circles of air vents are in communication with the air cavity 260 , the bottom circle of vents forms the first air outlet 240 , and the upper circle of vents forms the second air outlet 250 .

In these embodiments, the upper air duct housing 210 and the lower air duct housing 220 are enclosed to form an air cavity 260 and an installation cavity 270, the heating element 320 is installed in the air cavity 260, and the air supply element 310 is installed in the installation cavity 270; further The upper air duct housing 210 has two circles of air vents on the side facing the container body 110, respectively forming the first air outlet 240 and the second air outlet 250. The first air outlet 240 is formed by directly processing the upper air duct housing 210. And the second air outlet 250, no other structure needs to be provided, which makes the processing of the first air outlet 240 and the second air outlet 250 simple, reduces the components of the air duct 20, and simplifies the structure of the air duct 20, whether it is assembly or processing. All aspects are beneficial to the production of the air duct 20 .

In some embodiments, there is a space between two adjacent air vents, which can strengthen the structural strength of the upper air duct housing 210 and prevent the upper air duct housing 210 from being separated from the first air outlet 240 and/or the second air outlet 250 fracture.

In order to form the oblique downward second air outlet 250, in some embodiments, as shown in FIG. 4 and FIG. 12 , the top and bottom walls of the second air outlet 250 are gradually inclined downward toward the direction of the container body 110, so as to The annular rotating wind is guided obliquely downward into the cookware assembly 10 . By arranging the top wall and bottom wall of the second air outlet 250 to gradually slope downward toward the container body 110, the air outlet facing obliquely downward is formed. Such a processing structure is simple and easy to implement, and the second outlet obliquely downward is formed. The tuyere 250 can better guide the direction of the airflow, so that the airflow flows toward the frying plate 140 in the container body 110 .

In some embodiments, as shown in FIG. 19 to FIG. 23 , the lower part of the container body 110 shrinks inward to form a constriction portion 113 , and the first container air inlet 1101 and the second container air inlet 1102 are disposed on the constricted portion 113 . Since the air duct 20 is arranged around the outer periphery of the container body 110, the lower part of the container body 110 is arranged to form a constricted portion 113 with a smaller diameter, so that the air duct 20 can occupy a smaller space around the outer periphery of the constricted portion 113, so that the air The volume of the channel 20 is smaller, which is beneficial to the miniaturization of the product.

In some embodiments, as shown in FIG. 23 , the length W3 of the first container air inlet 1101 in the vertical direction is greater than the length W1 of the first air outlet 240 in the vertical direction, and the first air outlet in the vertical direction 240 is located within the range of the first container air inlet 1101 . In this way, the first container air inlet 1101 can be aligned with the first air outlet 240, and the air flowing out of the first air outlet 240 can directly enter the first container air inlet 1101, thereby reducing hot air leakage as much as possible and improving thermal efficiency.

In some embodiments, the vertical length W4 of the second container air inlet 1102 is greater than the vertical length W2 of the second air outlet 250, and the second air outlet 250 is located at the second container inlet in the vertical direction. within the range of the tuyere 1102 . In this way, the second container air inlet 1102 can be aligned with the second air outlet 250, and the air flowing out of the second air outlet 250 can directly enter the second container air inlet 1102, thereby reducing hot air leakage as much as possible and improving thermal efficiency.

In some embodiments, the heating element 320 includes an annular heat pipe 321 . The annular heating tube 321 can better match with the annular air cavity 260, so as to increase the heating area as much as possible, so that the heating efficiency is fast and the heating is uniform.

In some embodiments, as shown in FIGS. 13 and 25 , the heating element 320 includes an annular heat pipe 321 and a plurality of heat transfer fins 322 surrounding the annular heat pipe 321 , and the extension direction of the heat transfer fins 322 faces the air duct 20 center. In this way, the heat transfer sheet 322 can play the role of guiding the hot air, guide the hot air to the center of the container body 110, and can also effectively increase the heating area and improve the heating efficiency.

In some embodiments, as shown in FIGS. 13 and 25 , when the heating element 320 includes the heat transfer sheet 322 , the heat transfer sheet 322 is a circular sheet, and the plurality of heat transfer sheets 322 are along the circumference of the annular heat pipe 321 Directional intervals are provided on the outer circumference of the annular heat pipe 321 . The wafer has a simple structure and is easy to process.

In some embodiments, as shown in FIGS. 13 and 25 , the heat transfer sheet 322 is spirally wound on the outer periphery of the annular heat pipe 321 along the circumferential direction of the annular heat pipe 321 . The helical heat transfer fins 322 can be tightly wound around the outer circumference of the annular heat pipe 321 , which is more convenient for assembling with the annular heat pipe 321 .

In some embodiments, as shown in FIG. 9 , FIG. 10 , FIG. 13 and FIG. 25 , the annular heat pipe 321 includes a cold end 3214 and a wiring part 3215 , an escape port 211 is provided on the upper air duct housing 210 , and the wiring part 3215 The escape port 211 protrudes to the outside of the upper air duct housing 210 for connecting to the power supply.

In some embodiments, as shown in FIG. 25 , one of the plurality of heat transfer fins 322 that can be tangent to the extension line of the axis of the air supply member 310 is between the extension direction of the heat transfer fin 322 and the axis of the air supply member 310 . The included angle α9 is an obtuse angle. In this way, the guiding resistance of the airflow blown by the air supply member 310 can be reduced, so that the airflow can flow more smoothly.

In some embodiments, the diameter of the annular heating pipe 321 is 5 mm to 8 mm. If the pipe diameter is too large, the air duct 20 needs to be enlarged at the same time, which makes the whole machine bulky and the cost increases; and 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 are 10 mm to 25 mm in diameter. If the diameter of the heat transfer fins 322 is too large, the air duct 20 needs to be enlarged at the same time, which makes the whole machine bulky and the cost increases; and if the diameter of the heat transfer fins 322 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, as shown in FIG. 3 , FIG. 6 , FIG. 7 , FIG. 8 , FIG. 9 , FIG. 16 , FIG. 17 and FIG. 18 , the cooking appliance further includes: a heat preservation cover 40 installed under the air duct 20 , The thermal insulation cover 40 is used for heat insulation; the heating plate assembly 50 is arranged on the thermal insulation cover 40 , the air duct 20 is annular, and the heating plate assembly 50 is located in the middle of the air duct 20 and can heat the container body 110 .

In these embodiments, the thermal insulation cover 40 can isolate heat, prevent heat from overflowing, and improve heating efficiency; further, a heating plate assembly 50 is arranged in the middle of the air duct 20, so that the heating plate assembly 50 can be used for heating and installed above it The container body 110 of the container body 110 realizes double heating of the ingredients in the container body 110 . Alternatively, after the container body 110 is removed, the heating plate assembly can be used to heat a small pot placed thereon for cooking, steaming, frying, etc., so that one machine can be used for multiple purposes.

It is worth noting that the heating plate assembly 50 and the heating element 320 can work simultaneously or independently, and the user can choose according to specific needs to expand the scope of application of the product.

In some embodiments, optionally, the thermal insulation cover 40 is provided with a flange and a fixing portion, and the flange is used to expand the cavity volume formed by the lower air duct housing 220 and the thermal insulation cover 40 , so as to provide sufficient space for the heating plate assembly 50 The fixing part is used for fixed connection with the lower air duct housing 220, and specifically, it can be locked on the lower air duct housing 220 through the fixing part by means of fasteners such as screws.

In some embodiments, as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 19 , FIG. 20 and FIG. 21 , the cookware assembly 10 further includes: a cooker cover 120 , which can be closed on the container body 110 , and the cooker cover 120 The cover body 121 includes a handle 122 provided on the cover body 121 , and the handle 122 is provided with an exhaust hole 1221 communicating with the interior of the container body 110 . The hot air after cooking can be exhausted through the exhaust holes 1221 on the handle 122, thereby forming the outer circulation air duct 20, so that every time the inside of the container body 110 is blown fresh air, the food does not smell.

In some embodiments, as shown in FIGS. 1 to 3 and FIGS. 19 , 20 , and 21 , the exhaust holes 1221 are arranged on the side walls of the handle 122 , so that the hot air can be exhausted toward the side, avoiding straight upward exhaust. In addition, the user can choose the direction of the exhaust hole 1221, which is more conducive to the cooking operation.

In some embodiments, as shown in FIG. 1 , FIG. 2 and FIG. 3 , the cooking appliance further includes a base assembly 60 , the base assembly 60 includes a base 610 and an upper cover 620 , and the upper cover 620 is covered on the base 610 and is connected with the base 610 An accommodating cavity is formed by enclosing, the air duct 20 is arranged in the accommodating cavity, the middle of the upper cover 620 has a through hole for accommodating the cookware assembly 10, and the cookware assembly 10 is detachably installed on the base assembly 60 through the through hole.

In these embodiments, the air duct 20 is provided in the base assembly 60, and the pot assembly 10 is placed on the base assembly 60 to form a structure that can be separated from top to bottom. During cooking, the heating element 320 and/or the heating element in the base assembly 60 generates heat. The pan assembly 50 can heat the cookware assembly 10, and the hot air will rise, so that the heating effect is more uniform.

Here, the air flow path strength of the cooking utensil in the embodiment of the present application will be specifically described. The air supply member 310 blows the fresh air from the outside into the air duct 20 equipped with the heating member 320, and the air will rotate clockwise with the annular air duct 20. (viewed from top to bottom); the heated air is blown into the container body 110 through the first air outlet 240 and the second air outlet 250, and the hot air blown in by the first air outlet 240 is located below the frying plate 140; The hot air blown in by the tuyere 250 is located above the frying plate 140; the hot air rotates in the container body 110, and the upper and lower surfaces of the hot air heat the ingredients on the frying plate 140 at the same time; since the upper and lower surfaces of the ingredients are heated at the same time, uniform heating is achieved .

Optionally, the air supply member 310 may be a fan, preferably an axial flow fan.

It can be understood that the outside of the container body 110 may have a shell for preventing heat diffusion, preventing scalding, etc.; the inside of the container body 110 forms a cooking cavity 111 . In addition, a handle can be provided on the housing for easy access and placement.

Further, optionally, the upper cover 620 and the base 610 are connected 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 above in detail, various modifications and variations can be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the invention. It should be understood that such modifications and variations will still fall within the spirit and scope of the embodiments of the invention as defined by the claims, as would appear to those skilled in the art.

Claims (15)

1. A cooking appliance, comprising:

a pot assembly (10), the pot assembly (10) comprising a container body (110) having a cooking cavity (111);

the air duct (20) is arranged around the container body (110) in an enclosing manner, the air duct (20) is provided with a first air outlet (240) and a second air outlet (250), the first air outlet (240) and the second air outlet (250) are distributed in the circumferential direction, the first air outlet (240) and the second air outlet (250) face the direction of the side wall of the container body (110), and the first air outlet (240) is located below the second air outlet (250);

the side wall of the container body (110) is provided with a first container air inlet (1101) and a second container air inlet (1102), wherein the first container air inlet (1101) and the second container air inlet (1102) are circumferentially distributed, the first air outlet (240) is arranged opposite to the first container air inlet (1101), and the second air outlet (250) is arranged opposite to the second container air inlet (1102);

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 according to claim 1, characterized in that the pot assembly (10) further comprises:

a frying plate (140), the frying plate (140) being detachably disposed in the cooking chamber (111), the frying plate (140) being located above the first container intake vent (1101) and below the second container intake vent (1102).

3. The cooking appliance of claim 1,

the second air outlet (250) inclines downwards, and the inclination angle of the second air outlet (250) is 30-60 degrees.

4. The cooking appliance of claim 1,

the distance between the first air outlet (240) and the second air outlet (250) along the vertical direction is 40mm to 80 mm.

5. The cooking appliance of claim 1,

the length of the first air outlet (240) in the vertical direction is smaller than that of the second air outlet (250); and/or

The length of the first air outlet (240) in the vertical direction is 1.5mm to 5 mm; and/or

The length of the second air outlet (250) in the vertical direction is 2mm to 6 mm.

6. The cooking appliance according to any one of claims 1 to 5,

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).

7. The cooking appliance according to claim 6, wherein the air duct (20) comprises:

the air duct structure 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 an air cavity (260) and an installation cavity (270);

go up wind channel casing (210) orientation two rings of blow vents that distribute about having one side of pan subassembly (10), the blow vent with wind chamber (260) are linked together, and the round blow vent that is located the below forms first air outlet (240), the round blow vent that is located the top forms second air outlet (250).

8. The cooking appliance of claim 7,

the top wall and the bottom wall of the second air outlet (250) are gradually inclined downwards towards the direction of the container body (110) so as to guide the annularly rotating air into the cooker component (10) in a downward inclined mode.

9. The cooking appliance according to any one of claims 1 to 5,

the length of the first container air inlet (1101) in the vertical direction is greater than the length of the first air outlet (240) in the vertical direction, and the first air outlet (240) is located within the range of the first container air inlet (1101) in the vertical direction;

the length of the second container air inlet (1102) in the vertical direction is greater than the length of the second air outlet (250) in the vertical direction, and the second air outlet (250) is located within the range of the second container air inlet (1102) in the vertical direction.

10. The cooking appliance according to any one of claims 1 to 5,

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 arranged around the periphery of the annular heating pipe (321), and the extending direction of the heat transfer sheets faces to the center of the air duct (20).

11. The cooking appliance of claim 10,

under the condition that the heating element (320) comprises heat transfer sheets, the heat transfer sheets are round sheets, and a plurality of heat transfer sheets 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 is spirally coiled on the periphery of the annular heating tube (321) along the circumferential direction of the annular heating tube (321).

12. The cooking appliance of claim 11,

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

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

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

13. The cooking appliance according to any one of claims 1 to 5, further comprising:

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).

14. The cooking appliance according to any one of claims 1 to 5, 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 5, further comprising a base assembly (60), wherein 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 middle part of the upper cover (620) is provided with a through hole 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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