Upper and lower dual-core air fryer with high thermal efficiency

Abstract

The utility model relates to an upper and lower dual-core air fryer with high thermal efficiency, which comprises a machine body, a first cooking cavity and a second cooking cavity, the first cooking cavity and the second cooking cavity are vertically arranged in the machine body at an interval, and a first hot air circulating system and a second hot air circulating system are respectively arranged in the first cooking cavity and the second cooking cavity. The first cooking cavity and the second cooking cavity which are vertically arranged at an interval are formed in the machine body, and the first hot air circulating system and the second hot air circulating system are arranged in the first cooking cavity and the second cooking cavity respectively, so that two kinds of food can be cooked at the same time, and the food cooking efficiency is improved; in addition, the transverse size of the air fryer can be reduced, the space occupation of the air fryer is reduced, the space utilization rate is increased, and the user experience is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of air fryers, in particular to an upper and lower dual-core air fryer with high thermal efficiency. Background Art

[0002] With the improvement of people's living standards, the oil-free cooking method of air fryers is becoming more and more popular. However, most of the existing air fryers are single-pot air fryers, that is, they only have one cooking chamber and one frying basket. This type of air fryer can only cook one type of food at a time, with slow cooking speed, low cooking efficiency, and poor user experience. In order to meet user needs, a type of double-pot air fryer has appeared on the market. This type of air fryer has one cooking chamber and two frying baskets arranged side by side in the cooking chamber, which can cook two types of food at the same time. However, since there is only one frying and baking component in the cooking chamber, the cooking speed is slow and the cooking efficiency is low. Moreover, the parallel arrangement of the two frying baskets will increase the size of the air fryer, occupy a larger desktop area, have a high space occupancy rate, and have a poor user experience. Utility Model Content

[0003] The present application provides an upper and lower dual-core air fryer with high thermal efficiency to solve the technical problems of low cooking efficiency, high space occupancy and poor user experience of existing air fryers.

[0004] In order to solve the above technical problems, the utility model provides an upper and lower dual-core air fryer with high thermal efficiency, including a body, a first cooking cavity and a second cooking cavity are provided in the body, a first circulation fan is provided in the first cooking cavity, a first air outlet corresponding to the first circulation fan is provided on the first cooking cavity, and the first air outlet is connected to the second cooking cavity through a first pipe; a second circulation fan is provided in the second cooking cavity, a second air outlet corresponding to the second circulation fan is provided on the second cooking cavity, and the second air outlet is connected to the first cooking cavity through a second pipe, the internal dimension of the end of the first pipe connected to the first air outlet is larger than the internal dimension of the end connected to the second cooking cavity, and / or the internal dimension of the end of the second pipe connected to the second air outlet is larger than the internal dimension of the end connected to the first cooking cavity. The present application provides the first cooking cavity and the second cooking cavity arranged at an interval in the upper and lower parts of the machine body, which can not only cook multiple foods at the same time and effectively improve cooking efficiency, but also reduce the lateral volume of the air fryer while improving cooking efficiency, reduce the space occupied by the air fryer, improve space utilization, and effectively improve user experience; at the same time, by providing the first pipe and the second pipe in the machine body to connect the first cooking cavity and the second cooking cavity, the circulating heat flow can circulate between the first cooking cavity and the second cooking cavity, which can not only reduce heat loss and improve energy utilization, but also reduce energy consumption while ensuring cooking efficiency, but also achieve the purpose of reducing heat loss and improving energy utilization, and reducing energy consumption while ensuring cooking efficiency, and achieving the purpose of reducing heat loss and improving energy utilization, and achieving the purpose of reducing heat loss and improving energy utilization, and achieving the purpose of reducing heat loss and improving energy utilization, and achieving the purpose of reducing heat loss and improving energy consumption while ensuring cooking efficiency, and achieving the purpose of reducing heat loss and improving energy utilization, and achieving A heating component is provided in each of the second cooking cavities to repeatedly heat the circulating heat flow, thereby improving cooking efficiency. In addition, by setting the internal dimension of the end of the first pipeline connected to the first air outlet to be larger than the internal dimension of the end connected to the second cooking cavity, and / or setting the internal dimension of the end of the second pipeline connected to the second air outlet to be larger than the internal dimension of the end connected to the first cooking cavity, the air intake volume and air intake speed of the first pipeline and the second pipeline can be increased, so that the circulating heat flow in the first cooking cavity and the second cooking cavity can enter the first pipeline and the second pipeline faster and better, thereby effectively improving the heat flow circulation speed between the first cooking cavity and the second cooking cavity, and thus improving cooking efficiency.

[0005] In an optional embodiment, the internal dimensions of the first conduit gradually increase from the end connected to the first air outlet to the end connected to the second cooking cavity, and / or the internal dimensions of the second conduit gradually increase from the end connected to the second air outlet to the end connected to the first cooking cavity. This configuration not only allows for smoother airflow from the first and second conduits, effectively increasing the heat flow circulation rate between the first and second cooking cavities, thereby improving cooking efficiency, but also allows the circulating heat flow within the first and second conduits to be diffused and directed into the first and second cooking cavities, thereby preventing regional concentration of circulating heat flow that could lead to differentiated cooking zones, effectively improving the cooking effect of the air fryer.

[0006] In an optional embodiment, the area of the first duct corresponding to the first circulation fan and the first air outlet is configured as an arc-shaped guide portion facing the second cooking cavity; and / or the area of the second duct corresponding to the second circulation fan and the second air outlet is configured as an arc-shaped guide portion facing the first cooking cavity. By configuring the area of the first duct corresponding to the first circulation fan and the first air outlet as an arc-shaped guide portion facing the second cooking cavity, and / or configuring the area of the second duct corresponding to the second circulation fan and the second air outlet as an arc-shaped guide portion facing the first cooking cavity, the circulating heat flow within the first and second cooking cavities can be better directed into the first and second ducts, thereby effectively increasing the heat flow circulation speed between the first and second cooking cavities and thereby improving cooking efficiency.

[0007] In an optional embodiment, the first cooking cavity is provided with a first air inlet corresponding to the second pipeline, the edge of the first air inlet is provided with a first annular flange, and the second pipeline is sleeved with the first annular flange; and / or the second cooking cavity is provided with a second air inlet corresponding to the first pipeline, the edge of the second air inlet is provided with a second annular flange, and the first pipeline is sleeved with the second annular flange. By sleeved the first pipeline and / or the second pipeline on the first annular flange and / or the second annular flange, not only the structure of the air fryer can be simplified, the production cost and user cost can be reduced, but also the installation difficulty of the first pipeline and / or the second pipeline can be reduced; at the same time, the first annular flange and / or the second annular flange are also suitable for limiting and / or positioning the first pipeline and / or the second pipeline. By positioning and / or limiting the first pipeline and / or the second pipeline through the first annular flange and / or the second annular flange, not only the installation difficulty of the first pipeline and / or the second pipeline can be effectively reduced, but also the first pipeline and / or the second pipeline can be prevented from being misaligned with the first air inlet and / or the second air inlet during use, resulting in the circulating heat flow being unable to normally enter the first cooking cavity and / or the second cooking cavity and flowing out of the first cooking cavity and / or the second cooking cavity, thereby causing damage to electrical components, thereby effectively improving the performance stability and use safety of the air fryer.

[0008] In an optional embodiment, the first cooking cavity has a first, downwardly concave cavity at the bottom, the first circulation fan is disposed within the first cavity, a return air port is disposed on the bottom wall of the first cooking cavity, corresponding to the first circulation fan and communicating with the first cavity, and an air outlet is disposed outside the return air port. A first frying basket with an open top is disposed within the first cooking cavity, a hot air gap is formed between the first frying basket and the inner wall of the first cooking cavity, and a hot air outlet is disposed at the bottom of the first frying basket, corresponding to at least a portion of the return air port. The circulating airflow generated by the first circulation fan is adapted to enter the hot air gap through the air outlet and then flow toward the top opening of the first frying basket. Thereby, the circulating airflow enters the first frying basket through the top opening and then flows back into the first cavity through the hot air outlet and the return air port. A first heating assembly is disposed in the airflow circulation path of the first circulation fan. By disposing the first circulation fan at the bottom of the first cooking cavity and heating the circulating airflow generated by the first circulation fan through the first heating assembly and then directing it to the top of the first cooking cavity, where it enters the first frying basket through the top opening, problems such as food burning caused by the circulating heat flow directly entering the first frying basket can be reduced, thereby effectively improving cooking quality.

[0009] In an optional embodiment, the hot air outlet is provided with an upwardly folded flange around its periphery, a first frying plate with a through hole is suspended in the first frying basket, and a shielding portion corresponding to the hot air outlet and having a sealed structure is provided in the middle of the first frying plate, the shielding portion being suitable for covering the hot air outlet. By providing the upwardly folded flange around the hot air outlet, the oil and / or water generated by cooking food in the first frying basket can be blocked, thereby preventing the oil and / or water from flowing out through the hot air outlet and contaminating the external environment and / or flowing into the first concave cavity, thereby making cleaning difficult, etc., thereby effectively improving the user experience; at the same time, by suspending the first frying plate with a through hole in the first frying basket, the food can be propped up so that the circulating heat flow generated by the first circulation fan and heated by the first heating component can better heat the upper and lower surfaces of the food, thereby effectively improving the cooking efficiency of the food. and cooking effect, and sufficient space can be reserved under the first frying plate for circulating heat flow to pass through and flow out from the hot air outlet, thereby effectively improving the heat flow circulation efficiency in the first cooking cavity and thus improving the cooking efficiency; in addition, by arranging the shielding portion on the first frying plate to cover the hot air outlet, it is also possible to block the oil and / or water generated when cooking food on the first frying plate, so as to prevent the oil and / or water from directly flowing out of the first frying basket through the hot air outlet, thereby preventing the oil and / or water from directly flowing out of the first frying basket through the hot air outlet, thereby polluting the external environment and / or flowing into the first concave cavity, causing difficulty in cleaning, and effectively improving the user experience.

[0010] In an optional embodiment, the first frying basket sidewall is provided with a plurality of air inlet holes connecting the hot air gap and the first frying basket cavity. The air inlet holes are vertically extending strip-shaped holes. After the circulating airflow generated by the first circulation fan enters the hot air gap, at least a portion thereof enters the first frying basket through the air inlet holes. Providing the air inlet holes on the first frying basket sidewall allows the circulating heat flow within the hot air gap to be directed into the first frying basket from multiple directions, thereby heating the food in the first frying basket. This not only effectively improves the cooking effect, but also effectively increases the heat flow circulation efficiency within the first cooking cavity, thereby improving cooking efficiency.

[0011] In an optional embodiment, a first concave cavity is provided at the bottom of the first cooking cavity, the first circulation fan is provided in the first concave cavity, a return air port corresponding to the first circulation fan and connected to the first concave cavity is provided on the bottom wall of the first cooking cavity, and an air outlet is provided on the outer side of the return air port; a first frying basket with an open top is provided in the first cooking cavity, the first frying basket includes an outer pot and an inner pot suspended in the outer pot, a first hot air gap connected to the inner cavity of the inner pot is formed between the side walls of the inner pot and the side walls of the outer pot, a second hot air gap is formed between the bottom wall of the inner pot and the bottom wall of the outer pot, and the bottom of the outer pot is provided with a A hot air outlet is connected to the second hot air gap and corresponds to at least part of the return air port, a hot air inlet is provided on the outside of the hot air outlet, which is connected to the first hot air gap and corresponds to at least part of the air outlet, a ventilation hole is provided at the bottom of the inner pot, and the circulating air flow generated by the first circulation fan is suitable for entering the first hot air gap through the air outlet and the hot air inlet and flowing toward the top opening of the inner pot, entering the inner pot from the top opening of the inner pot and flowing back to the first concave cavity through the ventilation hole, the hot air outlet and the return air port, and a first heating component is provided on the air flow circulation path of the first circulation fan. By arranging the first circulation fan at the bottom of the first cooking cavity, and guiding the circulating heat flow generated by the first circulation fan and the first heating component to the top of the inner pot through the first hot air gap, entering the inner pot from the top opening of the inner pot, and returning to the first concave cavity from the ventilation holes and the second hot air gap at the bottom of the inner pot via the hot air outlet and the return air port, not only can the problem of the circulating heat flow directly blowing into the inner pot and causing the food to burn can be reduced, but the upper and lower surfaces of the food in the inner pot can also be heated, effectively improving the cooking efficiency and cooking effect; at the same time, by arranging the first frying basket into an inner and outer double-layer structure, and arranging the first hot air gap connected to the first concave cavity between the inner pot and the outer pot, the circulating heat flow can be introduced into the inner pot from the top periphery of the inner pot, thereby heating the food in the inner pot and effectively improving the cooking effect.

[0012] In an optional embodiment, the hot air outlet is provided with an upwardly folded flange around its periphery, and the inner pot bottom wall is provided with a sealed shielding portion corresponding to the hot air outlet, the shielding portion being adapted to cover the hot air outlet. The upwardly folded flange provided around the hot air outlet can block oil and / or water from flowing out of the inner pot through the ventilation hole, thereby preventing the oil and / or water from flowing out through the hot air outlet and contaminating the external environment and / or flowing into the first concave cavity, thereby making cleaning difficult, thereby effectively improving the user experience. Furthermore, the sealed shielding portion provided on the inner pot bottom wall, covering the hot air outlet, can block oil and / or water generated during cooking in the inner pot, thereby preventing the oil and / or water from flowing directly out of the outer pot through the hot air outlet and contaminating the external environment and / or flowing into the first concave cavity, thereby making cleaning difficult, thereby effectively improving the user experience.

[0013] In an optional embodiment, the inner pot sidewall is provided with a plurality of air inlet holes connecting the first hot air gap and the inner pot cavity. The air inlet holes are vertically extending strip-shaped holes. The circulating airflow generated by the first circulation fan enters the first hot air gap and at least partially flows through the air inlet holes into the inner pot. Providing these air inlet holes on the inner pot sidewall allows the circulating heat flow within the first hot air gap to be directed into the inner pot from multiple directions, thereby heating the food within the inner pot. This not only effectively improves the cooking effect, but also effectively increases the heat flow circulation efficiency within the first frying basket, thereby improving cooking efficiency.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The present application provides the first cooking cavity and the second cooking cavity arranged at an interval in the upper and lower parts of the machine body, which not only can cook multiple foods at the same time and effectively improve cooking efficiency, but also can reduce the lateral volume of the air fryer while improving cooking efficiency, reduce the space occupied by the air fryer, improve space utilization, and effectively improve user experience; at the same time, by providing the first pipeline and the second pipeline to connect the first cooking cavity and the second cooking cavity, the circulating heat flow can circulate between the first cooking cavity and the second cooking cavity, so as to improve energy utilization and reduce energy consumption while ensuring cooking efficiency; in addition, by setting the internal dimension of the end of the first pipeline connected to the second cooking cavity to be larger than the internal dimension of the end connected to the first air outlet, and / or setting the internal dimension of the end of the second pipeline connected to the first cooking cavity to be larger than the internal dimension of the end connected to the second air outlet, the air intake volume and air intake speed of the first pipeline and the second pipeline can be increased, effectively improving the heat flow circulation speed between the first cooking cavity and the second cooking cavity, thereby improving cooking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a first embodiment of an upper and lower dual-core air fryer with high thermal efficiency according to the present invention.

[0017] Figure 2 It is an overall cross-sectional view of a first embodiment of an upper and lower dual-core air fryer with high thermal efficiency according to the present invention.

[0018] Figure 3 This is a partial structural diagram of a first embodiment of an upper and lower dual-core air fryer with high thermal efficiency according to the present invention.

[0019] Figure 4 This is a partial structural diagram of a first embodiment of an upper and lower dual-core air fryer with high thermal efficiency according to the present invention.

[0020] Figure 5 It is an overall cross-sectional view of a second embodiment of an upper and lower dual-core air fryer with high thermal efficiency according to the present invention.

[0021] Figure 6 This is a schematic diagram of the first frying basket of the second embodiment of the upper and lower dual-core air fryer with high thermal efficiency of the present invention.

[0022] Figure 7 This is a schematic diagram of the structural decomposition of the first frying basket of the second embodiment of the upper and lower dual-core air fryer with high thermal efficiency of the present invention. DETAILED DESCRIPTION

[0023] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0026] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0027] And for ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] Furthermore, it should be noted that the term "a" should be understood as "at least one" or "one or more." That is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be one or more. The term "a" should not be construed as limiting the quantity. The use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0029] Example 1:

[0030] Attachment Figure 1 To the attached Figure 4As shown, this is a schematic diagram of a first embodiment of a top-bottom dual-core air fryer provided by the present invention, the air fryer includes a body 10, a first cooking cavity 11 and a second cooking cavity 12 provided in the body 10, the first cooking cavity 11 and the second cooking cavity 12 are suitable for being arranged in an upper and lower interval; the first cooking cavity 11 and the second cooking cavity 12 are respectively provided with a first hot air circulation system 13 and a second hot air circulation system 14, the first hot air circulation system 13 and the second hot air circulation system 14 are suitable for generating a circulating heat flow to heat the food in the first cooking cavity 11 and the second cooking cavity 12. By arranging the first cooking cavity 11 and the second cooking cavity 12 spaced apart in an upper and lower manner in the body 10, and respectively arranging the first hot air circulation system 13 and the second hot air circulation system 14 in the first cooking cavity 11 and the second cooking cavity 12, not only can the lateral volume of the air fryer be reduced, the space occupied by the air fryer be reduced, and the space utilization rate be improved, but the first hot air circulation system 13 and the second hot air circulation system 14 can also be used to heat the food in the first cooking cavity 11 and the second cooking cavity 12 at the same time, thereby effectively improving the cooking efficiency.

[0031] like Figure 2 As shown, the first hot air circulation system 13 includes a first circulation fan 131 and a first heating component 132, and the second hot air circulation system 14 includes a first circulation fan 141 and a second heating component 142; the first circulation fan 131 and the second circulation fan 141 are suitable for generating a circulating airflow, and the first heating component 132 and the second heating component 142 are suitable for heating the circulating airflow generated by the first circulation fan 131 and the second circulation fan 141 to form a circulating heat flow, thereby heating the food in the first cooking cavity 11 and the second cooking cavity 12.

[0032] like Figure 2As shown, the first cooking cavity 11 is provided with a first air outlet 111 corresponding to the first circulation fan 131, and the second cooking cavity 12 is provided with a second air outlet 121 corresponding to the second circulation fan 141. A first conduit 15 and a second conduit 16 are provided within the cooking body 10. The first conduit 15 is adapted to connect the first air outlet 111 with the second cooking cavity 12, and the second conduit 16 is adapted to connect the second air outlet 121 with the first cooking cavity 11. By providing the first conduit 15 and the second conduit 16 within the cooking body 10 to connect the first cooking cavity 11 and the second cooking cavity 12, a circulating heat flow can circulate between the first cooking cavity 11 and the second cooking cavity 12. This not only reduces heat loss and improves energy utilization, thus reducing energy consumption while ensuring cooking efficiency, but also allows the circulating heat flow within the first cooking cavity 11 and the second cooking cavity 12 to be repeatedly heated by the first heating assembly 132 and the second heating assembly 142 to compensate for heat loss during the circulating heat flow, effectively improving cooking efficiency.

[0033] like Figure 2 As shown, in an optional embodiment, the internal dimensions of the end of the first pipe 15 communicating with the first air outlet 111 are larger than the internal dimensions of the end communicating with the second cooking cavity 12, and the internal dimensions of the end of the second pipe 16 communicating with the second air outlet 121 are larger than the internal dimensions of the end communicating with the first cooking cavity 11. By setting the internal dimensions of the end of the first pipe 15 communicating with the first air outlet 111 to be larger than the internal dimensions of the end communicating with the second cooking cavity 12, and setting the internal dimensions of the end of the second pipe 16 communicating with the second air outlet 121 to be larger than the internal dimensions of the end communicating with the first cooking cavity 11, the air intake volume and air intake speed of the first pipe 15 and the second pipe 16 can be increased, allowing the circulating heat flow within the first cooking cavity 11 and the second cooking cavity 12 to enter the first pipe 15 and the second pipe 16 more quickly and effectively, thereby effectively increasing the heat flow circulation speed between the first cooking cavity 11 and the second cooking cavity 12, and thereby improving cooking efficiency. At the same time, in another optional embodiment, the internal dimension of the end of the first pipe 15 connected to the first air outlet 111 can be set to be larger than the internal dimension of the end connected to the second cooking cavity 12, or the internal dimension of the end of the second pipe 16 connected to the second air outlet 121 can be set to be larger than the internal dimension of the end connected to the first cooking cavity 11. Such a setting can also achieve the above-mentioned effect.

[0034] Furthermore, in an optional embodiment, the internal dimensions of the first conduit 15 are adapted to gradually increase from the end connected to the first air outlet 111 to the end connected to the second cooking cavity 12, and the internal dimensions of the second conduit 16 are adapted to gradually increase from the end connected to the second air outlet 121 to the end connected to the first cooking cavity 11. This arrangement not only allows for smoother air flow from the first and second conduits 15, 16, effectively increasing the heat flow circulation rate between the first and second cooking cavities 11, 12, thereby improving cooking efficiency, but also allows the circulating heat flow within the first and second conduits 15, 16 to be diffused and directed into the first and second cooking cavities 11, 12, thereby preventing regional heat flow accumulation that could lead to differentiated cooking zones, effectively improving the cooking effect of the air fryer. In another optional embodiment, the internal dimensions of the first conduit 15 are adapted to gradually increase from the end communicating with the first air outlet 111 to the end communicating with the second cooking cavity 12, or the internal dimensions of the second conduit 16 are adapted to gradually increase from the end communicating with the second air outlet 121 to the end communicating with the first cooking cavity 11. The aforementioned effects can also be achieved by configuring the internal dimensions of the first conduit 15 to gradually increase from the end communicating with the first air outlet 111 to the end communicating with the second cooking cavity 12, or configuring the internal dimensions of the second conduit 16 to gradually increase from the end communicating with the second air outlet 121 to the end communicating with the first cooking cavity 11.

[0035] like Figure 2As shown, in the air fryer, the area of the first conduit 15 corresponding to the first circulation fan 131 and the first air outlet 111 is adapted to be a curved guide portion facing the second cooking cavity 12, and the area of the second conduit 16 corresponding to the second circulation fan 141 and the second air outlet 121 is adapted to be a curved guide portion facing the first cooking cavity 11. By configuring the area of the first conduit 15 corresponding to the first circulation fan 131 and the first air outlet 111 as a curved guide portion facing the second cooking cavity 12, and configuring the area of the second conduit 16 corresponding to the second circulation fan 141 and the second air outlet 121 as a curved guide portion facing the first cooking cavity 11, the circulating heat flow within the first cooking cavity 11 and the second cooking cavity 12 can be better directed into the first conduit 15 and the second conduit 16, thereby effectively increasing the heat flow circulation speed between the first cooking cavity 11 and the second cooking cavity 12, thereby improving cooking efficiency. At the same time, in another optional embodiment, the area corresponding to the first pipeline 15, the first circulation fan 131 and the first air outlet 111 can be set as an arc-shaped guide portion facing the second cooking cavity 12, or the area corresponding to the second pipeline 16, the second circulation fan 141 and the second air outlet 121 can be set as an arc-shaped guide portion facing the first cooking cavity 11. Such a setting can also achieve the above-mentioned effect.

[0036] like Figure 2As shown, the first cooking cavity 11 is provided with a first air inlet 112 corresponding to the second pipe 16, and the edge of the first air inlet 112 is provided with a first annular flange 113 folded outward from the first cooking cavity 11, and one end of the second pipe 16 is suitable for communicating with the second air outlet 121, and the other end is suitable for being sleeved on the outside of the first annular flange 113; the second cooking cavity 12 is provided with a second air inlet 122 corresponding to the first pipe 15, and the edge of the second air inlet 122 is provided with a second annular flange 123 folded outward from the second cooking cavity 12, and one end of the first pipe 15 is suitable for communicating with the first air outlet 111, and the other end is suitable for being sleeved on the outside of the second annular flange 123. By respectively sleeve-connecting the first pipeline 15 and the second pipeline 16 to the outer sides of the first annular flange 113 and the second annular flange 123, not only can the structure of the air fryer be simplified, the production cost and the user's use cost be reduced, but also the installation difficulty of the first pipeline 15 and the second pipeline 16 can be reduced; at the same time, the first annular flange 113 and the second annular flange 123 are suitable for positioning the first pipeline 15 and the second pipeline 16. By positioning the first pipeline 15 and the second pipeline 16 through the first annular flange 113 and the second annular flange 123, the installation difficulty of the first pipeline 15 and the second pipeline 16 can be effectively reduced, thereby reducing the production cost and the user's use cost. cost; in addition, the first annular flange 113 and the second annular flange 123 are also suitable for limiting the first pipeline 15 and the second pipeline 16. The first annular flange 113 and the second annular flange 123 are used to limit the first pipeline 15 and the second pipeline 16, so as to avoid the first pipeline 15 and the second pipeline 16 from being misaligned with the first air inlet 113 and the second air inlet 123 during use, resulting in the circulating heat flow being unable to normally enter the first cooking cavity 11 and the second cooking cavity 12 and flowing out of the first cooking cavity 11 and the second cooking cavity 12, thereby causing damage to electrical components, thereby effectively improving the performance stability and safety of the air fryer. In another optional embodiment, the first cooking cavity 11 is provided with a first air inlet 112 corresponding to the second pipe 16, and the edge of the first air inlet 112 is provided with a first annular flange 113 folded outward from the first cooking cavity 11, and one end of the second pipe 16 is suitable for communicating with the second air outlet 121, and the other end is suitable for being sleeved on the outside of the first annular flange 113; or the second cooking cavity 12 is provided with a second air inlet 122 corresponding to the first pipe 15, and the edge of the second air inlet 122 is provided with a second annular flange 123 folded outward from the second cooking cavity 12, and one end of the first pipe 15 is suitable for communicating with the first air outlet 111, and the other end is suitable for being sleeved on the outside of the second annular flange 123.The above-mentioned effect can also be achieved by setting the first annular flange 113 or the second annular flange 123 on the edge of the first inlet 112 or the edge of the second air inlet 122, and sleeved the first pipe 15 or the second pipe 16 on the outside of the first annular flange 113 or the second annular flange 123.

[0037] Specifically, if Figures 2 to 4 As shown, the first cooking cavity 11 includes a first air duct plate 17 that constitutes at least part of the inner wall of the first cooking cavity 11, and the middle part of the first air duct plate 17 is suitable for being recessed to form a first concave cavity 171 with an opening facing the middle part of the first cooking cavity 11, and the first circulation fan 131 and the first heating component 132 are provided in the first concave cavity 171, and the first air outlet 111 is provided on the side wall of the first concave cavity 171 opposite to the first circulation fan 131; the second cooking cavity 12 includes a second air duct plate 18 that constitutes at least part of the inner wall of the second cooking cavity 12, and the middle part of the second air duct plate 18 is suitable for being recessed to form a second concave cavity 181 with an opening facing the middle part of the second cooking cavity 12, and the second circulation fan 141 and the second heating component 142 are provided in the second concave cavity 181, and the second air outlet 121 is provided on the side wall of the second concave cavity 12 opposite to the second circulation fan 141. By respectively arranging the first air outlet 111 and the second air outlet 121 on the side walls of the first concave cavity 171 and the second concave cavity 182 corresponding to the first circulation fan 131 and the second circulation fan 141, the hot air thrown out by the first circulation fan 131 and the second circulation fan 141 can better enter the first pipeline 15 and the second pipeline 16 through the first air outlet 111 and the second air outlet 121, thereby quickly circulating between the first cooking cavity and the second cooking cavity, effectively improving the heat flow circulation speed and cooking efficiency in the first cooking cavity 11 and the second cooking cavity 12.

[0038] like Figure 2 and Figure 3As shown, a first extension portion 172 extending outward is provided on the outer side of the opening of the first concave cavity 171. The first extension portion 172 is provided on the first air inlet 112, which communicates with the first cooking cavity 11. A second extension portion 182 extending outward is provided on the outer side of the opening of the second concave cavity 181. The second extension portion 182 is provided on the second air inlet 122, which communicates with the second cooking cavity 12. By arranging the first air inlet 112 and the second air inlet 122 on the first extension portion 172 and the second extension portion 182, respectively, on the outer sides of the openings of the first concave cavity 171 and the second concave cavity 181, mutual interference between the air inlet and the air outlet of the first cooking cavity 11 and the second cooking cavity 12 is avoided, effectively improving the heat flow circulation speed between the first cooking cavity 11 and the second cooking cavity 12, thereby improving cooking efficiency.

[0039] like Figure 2 and Figure 4As shown, a return air port 114 is provided on the bottom wall of the first cooking cavity 11, corresponding to the first circulation fan 131 and connected to the first concave cavity 171, and an air outlet 115 is provided on the outer side of the return air port 114; a first frying basket 20 with an open top is provided in the first cooking cavity 11, and a hot air gap 19 is formed between the first frying basket 20 and the inner wall of the first cooking cavity 11. A hot air outlet 21 is provided at the bottom of the first frying basket 20, corresponding to at least part of the return air port 114. The circulating heat flow generated by the first circulation fan 131 and the first heating assembly 132 is suitable for entering the hot air gap 19 through the air outlet 115 and then flowing toward the top opening of the first frying basket 20, entering the first frying basket 20 from the top opening, and returning to the first concave cavity 171 through the hot air outlet 21 and the return air port 114. By disposing the first circulation fan 131 and the first heating assembly 132 at the bottom of the first cooking cavity 11, and directing the circulating airflow generated by the first circulation fan 131 and the first heating assembly 132 to the top of the first cooking cavity 11 through the hot air gap 19, and then entering the first fryer basket 20 through the top opening of the first fryer basket 20, this can reduce the risk of the circulating heat flowing directly into the first fryer basket 20, causing food to burn, and effectively improve the cooking effect. In another optional embodiment, the first heating assembly 132 can also be disposed at the top of the first cooking cavity 11, with at least a portion of the airflow corresponding to the top opening of the first fryer basket 20. By arranging the first heating component 132 at the top of the first cooking cavity 11 and at least partially corresponding to the top opening of the first frying basket 20, not only can the circulating airflow generated by the first circulation fan 131 and about to enter the first frying basket 20 be heated to reduce heat loss of the circulating heat flow when entering the first frying basket 20, thereby effectively improving cooking efficiency and cooking effects, but the first heating component 132 can also be used to heat the top of the food in the first frying basket 20, thereby effectively improving cooking efficiency and user experience.

[0040] like Figure 2As shown, the hot air outlet 21 is provided with an upwardly folded flange 22 around its periphery. A first frying plate 30 with a through hole is suspended within the first frying basket 20. A shielding portion 31 is provided in the middle of the first frying plate 30, corresponding to the hot air outlet 221 and having a sealed structure. The shielding portion 31 is adapted to cover the hot air outlet 21. The upwardly folded flange 22 provided around the hot air outlet 21 blocks oil and / or water generated by cooking food within the first frying basket 20, preventing the oil and / or water from flowing out through the hot air outlet 21 and contaminating the external environment, or flowing into the first concave cavity 17, thereby making cleaning difficult. This effectively enhances the user experience. Furthermore, the first frying plate 30 with a through hole suspended within the first frying basket 20 not only supports the food, but also allows the circulating heat generated by the first circulation fan 131 and heated by the first heating assembly 132 to better heat the upper and lower surfaces of the food, effectively improving food cooking efficiency. and cooking effect, and sufficient space can be reserved under the first frying plate 30 for circulating heat flow to pass through and flow out from the hot air outlet 21, thereby effectively improving the heat flow circulation efficiency in the first cooking cavity 11 and thus improving the cooking efficiency; in addition, by providing the shielding portion 31 on the first frying plate 30 to cover the hot air outlet 21, it is also possible to block the oil and / or water generated when cooking food on the first frying plate 30, so as to prevent the oil and / or water from directly flowing out of the first frying basket 20 through the hot air outlet 21, thereby preventing the oil and / or water from directly flowing out of the first frying basket 20 through the hot air outlet 21, thereby polluting the external environment and flowing into the first concave cavity 17, making cleaning difficult, etc., thereby effectively improving the user experience.

[0041] like Figure 2 and Figure 4 As shown, the sidewall of the first frying basket 20 is provided with a plurality of air inlet holes 23 that connect the hot air gap 19 with the interior of the first frying basket 20. The air inlet holes 23 are preferably vertically extending strip-shaped holes. The circulating heat flow generated by the first circulation fan 131 and the first heating assembly 132 enters the hot air gap 19 and at least partially passes through the air inlet holes 23 into the first frying basket 20. By providing the air inlet holes 23 on the sidewall of the first frying basket 20, the circulating heat flow within the hot air gap 19 can be directed into the first frying basket 20 from multiple directions, thereby heating the food in the first frying basket 20. This not only effectively improves the cooking effect, but also effectively increases the heat flow circulation efficiency within the first cooking cavity 11, thereby improving cooking efficiency.

[0042] Example 2:

[0043] Attachment Figure 5 To the attached Figure 72 is a schematic diagram of a second embodiment of an upper and lower dual-core air fryer provided by the present invention. Compared with the air fryer in the first embodiment, the air fryer in the second embodiment has some identical structures and functions, which will not be described in detail here. Compared with the air fryer in the first embodiment, the difference between the air fryer in the second embodiment and the air fryer in the first embodiment lies in the different structure of the first frying basket 20.

[0044] Specifically, if Figure 5 As shown, the air fryer includes a body 10A, a first cooking cavity 11A and a second cooking cavity 12A provided in the body 10A, and the first cooking cavity 11A and the second cooking cavity 12A are suitable for being arranged in an upper and lower interval; the first cooking cavity 11A and the second cooking cavity 12A are respectively provided with a first hot air circulation system 13A and a second hot air circulation system 14A, and the first hot air circulation system 13A and the second hot air circulation system 14A are suitable for generating a circulating heat flow to heat the food in the first cooking cavity 11A and the second cooking cavity 12. The first hot air circulation system 13A includes a first circulation fan 131A and a first heating component 132A, and the second hot air circulation system 14A includes a first circulation fan 141A and a second heating component 142A; the first circulation fan 131A and the second circulation fan 141A are suitable for generating a circulating airflow, and the first heating component 132A and the second heating component 142A are suitable for heating the circulating airflow generated by the first circulation fan 131A and the second circulation fan 141A to form a circulating heat flow, thereby heating the food in the first cooking cavity 11A and the second cooking cavity 12A.

[0045] like Figure 5As shown, a first air duct plate 17A constituting the first cooking cavity 11A is provided at the bottom of the first cooking cavity 11A, and a middle portion of the first air duct plate 17A is suitable for being recessed to form a first concave cavity 171A with an opening facing the middle of the first cooking cavity 11A, and a first circulation fan 131A and a first heating assembly 132A are provided in the first concave cavity 171A, and a return air port 114A corresponding to the first circulation fan 131A and connected to the first concave cavity 171A is provided on the bottom wall of the first cooking cavity 11A, and an air outlet 115 is provided on the outside of the return air port 114A; a first frying basket 20A with an open top is provided in the first cooking cavity 11A, and the first frying basket 20A includes an outer pot 24A and an inner pot 25A suspended in the outer pot 24A, and a first hot air gap 26A communicating with the inner cavity of the inner pot 25A is formed between the side walls of the inner pot 25A and the side walls of the outer pot 24A, and the inner pot 25A is provided with a first hot air gap 26A communicating with the inner cavity of the inner pot 25A. A second hot air gap 27A is formed between the bottom wall of 25A and the bottom wall of the outer pot 24A. A hot air outlet 21A is provided at the bottom of the outer pot 24A, which is connected to the second hot air gap 27A and corresponds to at least part of the return air port 114A. A hot air inlet 28A is provided on the outside of the hot air outlet 21A, which is connected to the first hot air gap 26A and at least partly corresponds to the air outlet 115A. A ventilation hole 251A is provided at the bottom of the inner pot 25A. The circulating heat flow generated by the first circulating fan 131A and the first heating component 132A is suitable for entering the first hot air gap 26A through the air outlet 115A and the hot air inlet 29A and flowing toward the top opening of the inner pot 25A, entering the inner pot 25A from the top opening of the inner pot 25A and flowing back to the first concave cavity 171A through the ventilation hole 251A, the hot air outlet 21A and the return air port 114A. By arranging the first circulation fan 131A at the bottom of the first cooking cavity 11A, and guiding the circulating heat flow generated by the first circulation fan 131A and the first heating component 132A to the top of the inner pot 25A through the first hot air gap 26A, entering the inner pot 25A from the top opening of the inner pot 25A, and returning to the first concave cavity 171A from the ventilation holes 251A and the second hot air gap 26A at the bottom of the inner pot 25A through the hot air outlet 21A and the return air port 114A, it is possible to reduce the circulation heat flow. The heat flow is directly blown into the inner pot 25A, which may cause the food to burn. It can also heat the upper and lower surfaces of the food in the inner pot 25A, effectively improving the cooking efficiency and cooking effect. At the same time, by setting the first frying basket 20A into an inner and outer double-layer structure, and setting the first hot air gap 26A connected to the first concave cavity 17A between the inner pot 25A and the outer pot 24A, it is possible to introduce the circulating heat flow from the top circumference of the inner pot 25A into the inner pot 25A, thereby heating the food in the inner pot 25A and effectively improving the cooking effect.In another optional embodiment, the first heating assembly 132A is further adapted to be located at the top of the first cooking cavity 11A, and at least partially aligned with the top opening of the inner pot 25A. By arranging the first heating assembly 132A at the top of the first cooking cavity 11A, and at least partially aligned with the top opening of the inner pot 25A, not only can the circulating airflow generated by the first circulation fan 131A entering the inner pot 25A be heated, thereby reducing heat loss upon entering the inner pot 25A and effectively improving cooking efficiency and cooking results, but the first heating assembly 132A can also be used to heat the top of the food in the inner pot 25A, effectively improving cooking efficiency and user experience.

[0046] like Figure 5 As shown, the hot air outlet 21A is provided with an upward folded flange 22A around its periphery, and the bottom wall of the inner pot 25A is provided with a shielding portion 252A corresponding to the hot air outlet 21A and having a closed structure, and the shielding portion 252A is suitable for covering the hot air outlet 21A. By providing the upwardly folded flange 22A on the periphery of the hot air outlet 21A, it is possible to block the oil and / or water flowing out of the inner pot 25A through the ventilation hole 252A, so as to prevent the oil and / or water from polluting the external environment after flowing out through the hot air outlet 21A, and from flowing into the first concave cavity 171A, thereby causing cleaning difficulties, and effectively improving the user experience; at the same time, by providing the shielding portion 252A with a sealed structure covering the hot air outlet 21A on the bottom wall of the inner pot 25A, it is possible to block the oil and / or water generated when cooking food in the inner pot 25A, so as to prevent the oil and / or water from directly flowing out of the outer pot 24A through the hot air outlet 21A, thereby causing pollution to the external environment, and from flowing into the first concave cavity 171A, thereby causing cleaning difficulties, and effectively improving the user experience.

[0047] like Figures 5 to 7 As shown, the sidewall of the inner pot 25A is provided with a plurality of air inlet holes 253A that connect the first hot air gap 26A with the inner cavity of the inner pot 25A. The air inlet holes 253A are preferably vertically extending strip-shaped holes. The circulating heat flow generated by the first circulation fan 131A and the first heating assembly 132A enters the first hot air gap 26A and at least partially passes through the air inlet holes 253A into the inner pot 25A. By providing the air inlet holes 253A on the sidewall of the inner pot 25A, the circulating heat flow within the first hot air gap 26A can be directed into the inner pot 25A from multiple directions, thereby heating the food in the inner pot 25A. This not only effectively improves the cooking effect, but also effectively increases the heat flow circulation efficiency within the first frying basket 20A, thereby improving cooking efficiency.

[0048] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the purpose of the present invention has been fully and effectively achieved. Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. For those skilled in the art of the present invention, without departing from the present invention, several simple deductions or substitutions can be made, which should be deemed to fall within the scope of patent protection determined by the claims submitted for the present invention.

Claims

1. A double-core air fryer with high thermal efficiency, comprising a body, a first cooking cavity and a second cooking cavity being provided in the body, a first circulation fan being provided in the first cooking cavity, a first air outlet corresponding to the first circulation fan being provided on the first cooking cavity, the first air outlet being connected to the second cooking cavity through a first pipe; a second circulation fan being provided in the second cooking cavity, a second air outlet corresponding to the second circulation fan being provided on the second cooking cavity, the second air outlet being connected to the first cooking cavity through a second pipe, characterized in that: The internal size of the end of the first pipeline connected to the first air outlet is larger than the internal size of the end connected to the second cooking cavity, and / or the internal size of the end of the second pipeline connected to the second air outlet is larger than the internal size of the end connected to the first cooking cavity.

2. The upper and lower dual-core air fryer with high thermal efficiency according to claim 1, characterized in that: The internal size of the first pipeline gradually increases from the end connected to the first air outlet to the end connected to the second cooking cavity, and / or the internal size of the second pipeline gradually increases from the end connected to the second air outlet to the end connected to the first cooking cavity.

3. The upper and lower dual-core air fryer with high thermal efficiency according to claim 1, characterized in that: The area of the first pipeline corresponding to the first circulation fan and the first air outlet is an arc-shaped guide portion facing the second cooking cavity; And / or the area of the second pipeline corresponding to the second circulation fan and the second air outlet is an arc-shaped guide portion facing the first cooking cavity.

4. The upper and lower dual-core air fryer with high thermal efficiency according to claim 1, characterized in that: The first cooking cavity is provided with a first air inlet corresponding to the second pipeline, the edge of the first air inlet is provided with a first annular flange, and the second pipeline is sleeved with the first annular flange; and / or the second cooking cavity is provided with a second air inlet corresponding to the first pipeline, the edge of the second air inlet is provided with a second annular flange, and the first pipeline is sleeved with the second annular flange.

5. A double-core air fryer with high thermal efficiency according to any one of claims 1 to 4, characterized in that: A first concave cavity is provided downwardly concave at the bottom of the first cooking cavity, the first circulation fan is provided in the first concave cavity, a return air port corresponding to the first circulation fan and connected to the first concave cavity is provided on the bottom wall of the first cooking cavity, and an air outlet is provided outside the return air port; a first frying basket with an open top is provided in the first cooking cavity, a hot air gap is adapted to be formed between the first frying basket and the inner wall of the first cooking cavity, a hot air outlet is provided at the bottom of the first frying basket corresponding to at least part of the return air port, the circulating air flow generated by the first circulation fan is adapted to enter the hot air gap through the air outlet and then flow toward the top opening of the first frying basket, enter the first frying basket from the top opening and flow back to the first concave cavity through the hot air outlet and the return air port, and a first heating component is provided on the air circulation path of the first circulation fan.

6. The upper and lower dual-core air fryer with high thermal efficiency according to claim 5, characterized in that: The periphery of the hot air outlet is provided with an upwardly folded flange, a first frying plate with a through hole is suspended in the first frying basket, and a shielding portion with a closed structure corresponding to the hot air outlet is provided in the middle of the first frying plate, and the shielding portion is suitable for covering the hot air outlet.

7. The upper and lower dual-core air fryer according to claim 5, characterized in that: A plurality of air inlet holes connecting the hot air gap and the inner cavity of the first frying basket are provided on the side wall of the first frying basket. The air inlet holes are vertically extending strip holes. After the circulating airflow generated by the first circulation fan enters the hot air gap, at least part of it enters the first frying basket through the air inlet holes.

8. A double-core air fryer with high thermal efficiency according to any one of claims 1 to 4, characterized in that: The bottom of the first cooking cavity is provided with a first concave cavity which is concave downwards, the first circulation fan is provided in the first concave cavity, the bottom wall of the first cooking cavity is provided with a return air port which corresponds to the first circulation fan and is connected to the first concave cavity, and an air outlet is provided on the outer side of the return air port; a first frying basket with an open top is provided in the first cooking cavity, the first frying basket includes an outer pot and an inner pot suspended in the outer pot, a first hot air gap which is connected to the inner cavity of the inner pot is formed between the side walls of the inner pot and the side walls of the outer pot, a second hot air gap is formed between the bottom wall of the inner pot and the bottom wall of the outer pot, and the bottom of the outer pot is provided with a hot air gap which is connected to the inner cavity of the inner pot A second hot air gap and a hot air outlet corresponding to at least part of the return air port, a hot air inlet is provided on the outside of the hot air outlet, which is connected to the first hot air gap and at least partly corresponds to the air outlet, and a ventilation hole is provided at the bottom of the inner pot. The circulating airflow generated by the first circulation fan is suitable for entering the first hot air gap through the air outlet and the hot air inlet and flowing toward the top opening of the inner pot, entering the inner pot from the top opening of the inner pot and flowing back to the first concave cavity through the ventilation hole, the hot air outlet and the return air port, and a first heating component is provided on the airflow circulation path of the first circulation fan.

9. The upper and lower dual-core air fryer with high thermal efficiency according to claim 8, characterized in that: The periphery of the hot air outlet is provided with an upwardly folded flange, and the bottom wall of the inner pot is provided with a shielding portion corresponding to the hot air outlet and having a closed structure, and the shielding portion is suitable for covering the hot air outlet.

10. The upper and lower dual-core air fryer with high thermal efficiency according to claim 8, characterized in that: The side wall of the inner pot is provided with a plurality of air inlet holes connecting the first hot air gap and the inner cavity of the inner pot. The air inlet holes are vertically extending strip holes. The circulating airflow generated by the first circulation fan enters the first hot air gap and at least partially enters the inner pot through the air inlet holes.

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