Air fryer with heat preservation function

Abstract

The air fryer with the heat preservation function comprises a machine body, a first inner cavity arranged in the machine body and a first hot air circulation system communicated with the first inner cavity, an air channel plate is arranged at the top of the first inner cavity, a second inner cavity is arranged above the air channel plate, and the first hot air circulation system is communicated with the second inner cavity. The bottom wall of the second inner cavity is the air duct plate forming at least part of the first inner cavity, an object containing piece with a containing cavity is detachably arranged in the second inner cavity, the top of the object containing piece is provided with a top opening, and the bottom of the object containing piece is suitable for being matched with the air duct plate in a heat transfer mode. When the air fryer is used for cooking food, high temperature in the first inner cavity can be transferred into the second inner cavity and the object placing piece through the air duct plate, and therefore heat preservation of the food which is cooked in advance can be achieved by putting the food which is cooked in advance into the object placing piece. The problem of poor taste caused by cooling of the previously cooked food in the cooking process is avoided, 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 air fryer with a heat preservation function. Background Art

[0002] With the improvement of people's living standards, the oil-free cooking method of air fryers has become more and more popular. However, most of the existing air fryers have a single-cavity structure, that is, there is only one cooking cavity and one frying basket. Users can only cook one kind of food at a time, which has low cooking efficiency. Moreover, when cooking the next kind of food, the previously cooked food is easy to cool down and needs to be heated repeatedly. Not only is the operation more cumbersome, but it is also easy to cause the food to taste poor, and the user experience is not good. Utility Model Content

[0003] The present application provides an air fryer with a heat preservation function to solve the technical problems of low cooking efficiency of existing air fryers, easy cooling of previously cooked food, the need for repeated heating, cumbersome operation, poor food taste, and poor user experience.

[0004] In order to solve the above technical problems, the utility model provides an air fryer with a heat preservation function, comprising a body, a cooking cavity arranged in the body, and a hot air circulation system connected to the cooking cavity, the cooking cavity comprising a first inner cavity, a duct plate being provided on the top of the first inner cavity, a second inner cavity being provided above the duct plate, the bottom wall of the second inner cavity being the duct plate constituting at least part of the first inner cavity, a placement piece with a accommodating cavity being detachably provided in the second inner cavity, the top of the placement piece having a top opening, and the bottom being suitable for heat transfer cooperation with the duct plate. The air fryer is provided with the second inner cavity above the first inner cavity, and the placement member that cooperates with the air duct plate for heat transfer is provided in the second inner cavity. Therefore, when the air fryer is cooking food, the high temperature in the first inner cavity can be heat-transferred to the second inner cavity and the placement member through the air duct plate. At this time, the previously cooked food can be placed in the placement member to keep the previously cooked food warm. This not only effectively prevents the previously cooked food from cooling or being repeatedly heated, resulting in a poor taste, but also effectively improves the heat utilization rate of the air fryer. While ensuring the heat preservation function of the air fryer, the energy consumption and user cost of the air fryer are reduced, thereby effectively improving the user experience.

[0005] In an optional embodiment, the hot air circulation system includes a first hot air circulation system disposed at the bottom of the first inner cavity and connected to the first inner cavity. A first frying basket with an open top is disposed within the first inner cavity. A hot air gap is defined between the first frying basket and an inner wall of the first inner cavity. A hot air hole is defined at the bottom of the first frying basket and connected to the hot air gap. The circulating heat flow generated by the first hot air circulation system is adapted to flow upward through the hot air gap, then flow into the first frying basket from the top opening of the first frying basket, and then flow out from the hot air hole at the bottom of the first frying basket and return to the first hot air circulation system through the hot air gap. By disposing the first hot air circulation system at the bottom of the first inner cavity and directing the circulating heat flow generated by the first hot air circulation system into the first frying basket through the top opening of the first frying basket, not only can the problem of the circulating heat flow being blown directly into the first frying basket, thereby causing the food in the first frying basket to burn, be reduced, but also the upper and lower surfaces of the food in the first frying basket can be heated simultaneously, effectively improving the cooking efficiency and cooking effect.

[0006] In an optional embodiment, a heating pipe is provided on the heat flow circulation path of the first inner cavity, and the heating pipe is adapted to be positioned adjacent to the air duct plate. By positioning the heating pipe on the heat flow circulation path of the first inner cavity and adjacent to the air duct plate, not only can the circulating heat flow within the first inner cavity be reheated to compensate for heat loss during the cooking process, effectively improving cooking efficiency and cooking results, but the heating pipe can also be used to heat the air duct plate, thereby enhancing the thermal insulation of the second inner cavity and the storage device, effectively improving the user experience.

[0007] In an optional embodiment, an annular air guide portion formed by a downward depression of the air duct plate is provided at a position at the top of the first inner cavity corresponding to the opening at the top of the first frying basket. The air guide portion is adapted to be positioned toward the middle of the bottom wall of the first frying basket. The air guide portion is adapted to function as a guide. Providing the air guide portion at the top of the first inner cavity not only better directs the circulating heat flow within the hot air gap into the first frying basket, thereby effectively improving the heat flow circulation efficiency within the first inner cavity and, in turn, improving cooking efficiency, but also disperses the circulating heat flow within the hot air gap into the first frying basket, thereby avoiding regional concentration of the circulating heat flow upon entering the first frying basket, which results in differentiated cooking areas for the food. This effectively improves the cooking efficiency and cooking results of the air fryer.

[0008] In an optional embodiment, the air duct plate is recessed downward to form an upwardly opening groove at the bottom of the second inner cavity. The bottom of the storage element is recessed downward to form a protrusion that matches the groove. When the storage element is placed in the second inner cavity, the protrusion is adapted to releasably engage with the groove. The groove is adapted to position and / or limit the protrusion. Positioning and / or limiting the protrusion by the groove not only effectively reduces the difficulty of installing the storage element, but also prevents the storage element from sliding freely, allowing the storage element to better cooperate with the air duct plate in heat transfer, thereby ensuring the storage element's thermal insulation effect.

[0009] In an optional embodiment, the air duct plate is suitable for being made of a high-temperature resistant metal material with good thermal conductivity, and a heating tube is provided around the outside of the guide portion of the air duct plate, and at least a portion of the heating tube corresponds to the top opening of the first frying basket. By surrounding the heating tube corresponding to the top opening of the first frying basket on the outside of the air guide portion, not only can the top of the food in the first frying basket and the circulating heat flow about to enter the first frying basket be heated, effectively improving the cooking efficiency and cooking effect of the air fryer, but more heat can also be transferred to the second inner cavity through the air duct plate to improve the thermal insulation effect of the second inner cavity; at the same time, by using a high-temperature resistant metal material with good thermal conductivity to make the air duct plate, not only the thermal conductivity of the air duct plate can be guaranteed, so that the heat generated in the first inner cavity and the heating tube can be better transferred to the second inner cavity, so as to keep the food in the second inner cavity warm and heat it, effectively improving the thermal insulation effect of the second inner cavity, but also the influence of the high temperature of the heating tube and the first inner cavity on the air duct plate itself can be reduced while conducting heat, effectively ensuring the performance stability of the air duct plate and improving the user experience.

[0010] In an optional embodiment, the body is provided with a temperature sensor that at least partially extends into the first inner cavity, and a control system electrically connected to the temperature sensor, the hot air circulation system, and the heating tube. When the temperature sensor detects that the temperature in the first inner cavity exceeds a maximum preset temperature, the control system is adapted to control the hot air circulation system and / or the heating tube to stop operating. By providing the body with a temperature sensor that extends into the first inner cavity, and a control system electrically connected to the temperature sensor, the hot air circulation system, and the heating tube, the temperature in the first inner cavity can be controlled. When the temperature in the first inner cavity is too high, the hot air circulation system and / or the heating tube are automatically shut down to lower the temperature in the first inner cavity, thereby avoiding problems such as food burning or component damage caused by the excessively high temperature in the first inner cavity, and effectively improving the performance stability and safety of the air fryer.

[0011] In an optional embodiment, the top of the second inner cavity is provided with a top opening, and a top cover is provided at the top opening to cover the top opening of the storage unit and match the top opening. The top cover is adapted to detachably fit with the top opening. Providing the top opening at the top of the second inner cavity not only facilitates the removal and placement of food, but also facilitates the removal, cleaning, replacement, and installation of the storage unit, effectively improving user convenience. Furthermore, by detachably providing the top opening to cover the top opening of the storage unit and match the top opening, not only can the top opening of the storage unit be closed, reducing heat leakage from the storage unit and improving the insulation effect of the storage unit, but the second inner cavity and the storage unit can also be concealed, thereby improving the overall aesthetics of the air fryer.

[0012] In an optional embodiment, the storage element is suitably made of a high-temperature resistant material with good thermal conductivity. Using such a material not only reduces the impact of high-temperature heat transfer within the cooking cavity on the storage element, thereby ensuring the stability of the storage element, but also effectively transfers high-temperature heat from the first inner cavity to the storage element, thereby keeping the food inside the storage element warm and effectively improving the insulation performance of the storage element.

[0013] In an optional embodiment, a flow channel is provided within the housing, one end of which is adapted to communicate with the first inner cavity and the other end of which is adapted to communicate with the storage chamber of the storage element. By providing the flow channel within the housing, which connects the first inner cavity and the storage chamber, circulating heat from the first inner cavity can be directed into the storage chamber, thereby heating and maintaining the warmth of food within the storage chamber, effectively enhancing the thermal insulation performance of the storage element.

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

[0015] The present application provides the second inner cavity above the first inner cavity, and provides the placement member that cooperates with the air duct plate for heat transfer in the second inner cavity. Therefore, when the air fryer is cooking food, the high temperature in the first inner cavity can be heat-transferred to the second inner cavity and the placement member through the air duct plate. At this time, placing the previously cooked food in the placement member can keep the previously cooked food warm. This not only effectively avoids the problem of previously cooked food cooling down or repeatedly heating up, resulting in poor food taste, but also effectively improves the heat utilization rate of the air fryer. While ensuring the heat preservation function of the air fryer, it reduces the energy consumption and user cost of the air fryer, effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The utility model is a schematic diagram of the overall structure of an air fryer with a heat preservation function.

[0017] Figure 2 This is a partial structural exploded schematic diagram of an air fryer with heat preservation function of the present invention.

[0018] Figure 3 This is a partial structural sectional view of an air fryer with heat preservation function according to the present invention. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Attachment Figure 1 To the attached Figure 3 2 is a schematic diagram of an air fryer with a heat preservation function provided by the present invention. The air fryer includes a body 10, an open cooking cavity 11 provided on the inner side of the body 10, and a hot air circulation system 20 connected to the cooking cavity 11. The hot air circulation system 20 is suitable for generating a circulating heat flow and passing it into the cooking cavity 11 to cook the food in the cooking cavity 11.

[0026] like Figure 3As shown, the cooking cavity 11 includes a first inner cavity 111 and a third inner cavity 112, and the first inner cavity 111 and the third inner cavity 112 are suitable for being arranged in an upper and lower interval, specifically, the first inner cavity 111 is located above the third inner cavity 112; the hot air circulation system 20 includes a first hot air circulation system 21 and a second hot air circulation system 22, and the first hot air circulation system 21 and the second hot air circulation system 22 are suitable for connecting the first inner cavity 111 and the third inner cavity 112 respectively, so as to transport circulating heat flow to the first inner cavity 111 and the third inner cavity 112 respectively, thereby cooking the food in the first inner cavity 111 and the third inner cavity 112. The air fryer is capable of cooking a variety of foods simultaneously by providing the first inner cavity 111 and the third inner cavity 112 in the body 10, and providing the first hot air circulation system 21 and the second hot air circulation system 22 respectively connected to the first inner cavity 111 and the third inner cavity 112, thereby effectively improving the cooking efficiency and user experience of the air fryer; at the same time, by arranging the first inner cavity 111 and the third inner cavity 112 in an upper and lower interval, the space occupied by the air fryer can be effectively reduced, thereby improving the user experience.

[0027] like Figure 3 As shown, in an optional embodiment, the first hot air circulation system 21 is adapted to be installed at the bottom of the first inner cavity 111, and the second hot air circulation system 22 is adapted to be installed at the top of the third inner cavity 112. A mounting cavity 12 is provided between the first inner cavity 111 and the third inner cavity 112. A drive system 30 is provided in the mounting cavity 13. The drive system 30 includes a drive motor 31 and a circuit board electrically connected to the drive motor 31. The drive motor 31 is adapted to be a dual-shaft motor. The rotating shafts at both ends of the drive motor 31 are adapted to extend upward and downward into the first inner cavity 111 and the third inner cavity 112, respectively, to drive and connect with the first hot air circulation system 21 and the second hot air circulation system 22. By using the same drive motor 31 to drive the first and second hot air circulation systems 21 and 22, the air fryer can not only simplify the overall structure of the air fryer, reduce energy consumption, and reduce production and use costs, but also further reduce the overall volume of the air fryer, reduce space occupation, and improve the user experience.

[0028] like Figure 3As shown, an air duct plate 13 is provided on the top of the first inner cavity 111, and a second inner cavity 113 is provided above the air duct plate 13. The bottom wall of the second inner cavity 113 is suitable for constituting the air duct plate 13 of at least part of the first inner cavity 111. A storage piece 14 with a accommodating cavity 141 is detachably provided in the second inner cavity 113. The top of the storage piece 14 has a top opening, and food to be kept warm can be placed in or taken out of the accommodating cavity 141 through the top opening. The bottom of the storage piece 14 is suitable for heat transfer cooperation with the air duct plate 13. The air fryer is provided with the second inner cavity 113 above the first inner cavity 111, and the placement member 14 is provided in the second inner cavity 113 for heat transfer with the air duct plate 13. Therefore, when the air fryer is cooking food, the high temperature in the first inner cavity 111 can be heat-transferred to the second inner cavity 113 and the placement member 14 through the air duct plate 13. At this time, the previously cooked food can be placed in the placement member 14 to keep the previously cooked food warm. This not only effectively prevents the previously cooked food from cooling or being repeatedly heated, resulting in a poor taste, but also effectively improves the heat utilization rate of the air fryer. While ensuring the heat preservation function of the air fryer, the energy consumption and user cost of the air fryer are reduced, thereby effectively improving the user experience.

[0029] like Figure 3As shown, a first hot air cavity communicating with the first inner cavity 111 is provided at the bottom of the first inner cavity 111, and the first hot air circulation system 21 is provided in the first hot air cavity 111. The first hot air circulation system 21 includes a first heating component and a first hot air circulation fan. The first heating component is suitable for heating the air in the first hot air cavity and the first inner cavity 111, and the first hot air circulation fan is suitable for driving the heated air to circulate to form a circulating heat flow. A first frying basket 40 with an open top is provided in the first inner cavity 111, and a hot air gap 114 is provided between the first frying basket 40 and the inner wall of the first inner cavity 111. A hot air hole 41 communicating with the hot air gap 114 is provided at the bottom of the first frying basket 40. The circulating heat flow generated by the first hot air circulation system 21 is suitable for flowing upward through the hot air gap 114, then flowing into the first frying basket 40 from the top opening of the first frying basket 40, and then flowing out from the hot air hole 41 at the bottom of the first frying basket 40, and then flowing back to the first hot air circulation system 21 through the hot air gap 114. By arranging the first hot air circulation system 21 at the bottom of the first inner cavity 111 and introducing the circulating heat flow generated by the first hot air circulation system 21 into the first frying basket 40 through the top opening of the first frying basket 40, not only can the problem of the circulating heat flow directly blowing into the first frying basket 40, thereby reducing the problem of the food in the first frying basket 40 being burnt, but also the upper and lower surfaces of the food in the first frying basket 40 can be heated simultaneously by the circulating heat flow and the first heating component, thereby effectively improving the cooking efficiency and cooking effect of the food.

[0030] In an optional embodiment, a heating pipe 15 is further provided on the heat flow circulation path of the first inner cavity 111, and the heating pipe 15 is adapted to be positioned adjacent to the air duct plate 13. By positioning the heating pipe 15 on the heat flow circulation path of the first inner cavity 111 and adjacent to the air duct plate 13, not only can the heating pipe 15 be used to reheat the circulating heat flow within the first inner cavity 111 to compensate for heat loss during the cooking process, effectively improving cooking efficiency and cooking results, but the heating pipe 15 can also be used to heat the air duct plate 13 to enhance the thermal insulation of the second inner cavity 113 and the storage element 14, effectively improving the user experience.

[0031] like Figure 2 and Figure 3As shown, in an optional embodiment, a circular air guide portion 131 formed by a downward depression of the air duct plate 13 is provided at the top of the first inner cavity 111, corresponding to the open top of the first frying basket 40. The air guide portion 131 is preferably in the shape of a boss and faces toward the middle of the bottom wall of the first frying basket 40. The air guide portion 131 is adapted to serve as a guide. Providing the air guide portion 131 at the top of the first inner cavity 111 not only better directs the circulating heat flow within the hot air gap 114 into the first frying basket 40, thereby effectively improving the heat flow circulation efficiency within the first inner cavity 111 and thus improving cooking efficiency, but also disperses the circulating heat flow within the hot air gap 114 into the first frying basket 40, avoiding regional concentration of the circulating heat flow upon entering the first frying basket 40, which results in differentiated cooking areas for the food. This effectively improves the cooking efficiency and cooking effect of the air fryer.

[0032] like Figure 2 and Figure 3 As shown, in an optional embodiment, the air duct plate 13 is recessed downward to form an upwardly opening groove 132 at the bottom of the second inner cavity 113. The bottom of the storage element 14 is recessed downward to form a protrusion 142 that matches the groove 132. When the storage element 14 is positioned in the second inner cavity 113, the protrusion 142 is adapted to releasably engage with the groove 132. The groove 132 is adapted to position the protrusion 142. By positioning the protrusion 142 through the groove 132, the installation difficulty of the storage element 14 is effectively reduced, and the user experience is improved. At the same time, the groove 132 is adapted to limit the protrusion 142. By limiting the protrusion 142 through the groove 132, the storage element 14 is prevented from sliding freely, allowing the storage element 14 to better cooperate with the air duct plate 13 in heat transfer, thereby ensuring the heat preservation effect of the storage element 14.

[0033] like Figure 3As shown, in an optional embodiment, the air duct plate 13 is suitable for being made of a high-temperature resistant metal material with good thermal conductivity, such as stainless steel, copper-iron alloy, or aluminum. The heating pipe 15 is suitable for being arranged around the outside of the guide portion 131 of the air duct plate 13, and at least partially corresponding to the top opening of the first frying basket 40. By surrounding the heat pipe 15 on the outside of the air guide portion 131 and corresponding to the top opening of the first frying basket 40, not only can the top of the food in the first frying basket 40 and the circulating heat flow about to enter the first frying basket 40 be heated, effectively improving the cooking efficiency and cooking effect of the air fryer, but more heat can also be transferred to the second inner cavity 113 through the air duct plate 13 to improve the thermal insulation effect of the second inner cavity. At the same time, by using a high-temperature resistant metal material with good thermal conductivity to make the air duct plate 13, not only can the thermal conductivity of the air duct plate 13 be ensured, so that the heat generated in the first inner cavity 111 and the heat pipe 15 can be better transferred to the second inner cavity 113 to keep the food in the second inner cavity 113 warm and heat it, effectively improving the thermal insulation effect of the second inner cavity 113, but also the influence of the high temperature in the heat pipe 15 and the first inner cavity 111 on the air duct plate 13 itself can be reduced while conducting heat, effectively ensuring the performance stability of the air duct plate 13 and improving the user experience.

[0034] like Figure 3As shown, in an optional embodiment, the body 10 is provided with a temperature sensor 16 that at least partially extends into the first inner cavity 111 and a control system electrically connected to the temperature sensor 16, the hot air circulation system 20 and the heating pipe 15. The control system is provided with a maximum preset temperature and a minimum preset temperature. When the temperature sensor 16 detects that the temperature in the first inner cavity 111 exceeds the maximum preset temperature, the control system is suitable for controlling the hot air circulation system 20 and the heating pipe 15 to stop running to reduce the temperature in the first inner cavity 111; when the temperature sensor 16 detects that the temperature in the first inner cavity 111 is lower than the minimum preset temperature, the control system is suitable for controlling the hot air circulation system 20 and the heating pipe 15 to operate to increase the temperature in the first inner cavity 111. By disposing a temperature sensor 16 extending into the first inner cavity 111 and a control system electrically connected to the temperature sensor 16, the hot air circulation system 20, and the heating pipe 15 in the body 10, the temperature in the first inner cavity 111 can be controlled. When the temperature in the first inner cavity 111 is too high, the hot air circulation system 20 and the heating pipe 15 are automatically turned off to quickly reduce the temperature in the first inner cavity 111, thereby avoiding problems such as burning of food or damage to components due to the excessive temperature in the first inner cavity 111, thereby effectively improving the performance stability and safety of the air fryer. At the same time, when the temperature in the first inner cavity 111 is too low, the hot air circulation system 20 and the heating pipe 15 are automatically turned on to quickly increase the temperature in the first inner cavity 111, thereby ensuring normal cooking and effectively improving the cooking effect of the air fryer. In another optional embodiment, when the temperature sensor 16 detects that the temperature within the first inner cavity 111 exceeds a maximum preset temperature, the control system is adapted to control the hot air circulation system 20 or the heating pipe 15 to stop operating; and when the temperature sensor 16 detects that the temperature within the first inner cavity 111 is less than a minimum preset temperature, the control system is adapted to control the hot air circulation system 20 or the heating pipe 15 to operate. When the temperature within the first inner cavity 111 is too high or too low, only controlling the hot air circulation system 20 or the heating pipe 15 to stop or operate can also lower or raise the temperature within the first inner cavity 111, ensuring normal cooking and improving the performance and stability of the air fryer.

[0035] like Figure 1 and Figure 2As shown, in an optional embodiment, the top of the second inner cavity 113 is provided with a top opening 1131. A top cover 17 is provided at the top opening 1131 to cover the top opening of the storage element 14 and to match the top opening 1131. The top cover 17 is adapted to detachably fit with the top opening 1131. Providing the top opening 1131 at the top of the second inner cavity 113 not only facilitates the removal and placement of food, but also facilitates the removal, cleaning, replacement, and installation of the storage element 14, effectively improving user convenience. Furthermore, by detachably providing the top opening 1131 to cover the top opening of the storage element 14 and to match the top opening 1131, the top opening of the storage element 14 is closed, reducing heat leakage from the storage element 14 and improving the heat preservation effect of the storage element 14. Furthermore, the second inner cavity 113 and the storage element 14 are concealed, thereby improving the overall aesthetics of the air fryer.

[0036] In an optional embodiment, the storage member 14 is preferably made of a high-temperature resistant material with good thermal conductivity, such as stainless steel, a copper-iron alloy, or aluminum. Using such a material not only reduces the impact of high-temperature heat transfer within the cooking cavity 11 on the storage member 14, thereby ensuring the stability of the storage member 14's performance, but also effectively transfers high-temperature heat from the first inner cavity 113 to the storage member 14, thereby keeping the food inside the storage member 14 warm and effectively improving the insulation performance of the storage member 14.

[0037] In an optional embodiment, a flow channel is provided within the housing 10, one end of which is adapted to communicate with the first inner cavity 111 and the other end of which is adapted to communicate with the accommodating cavity 141 of the storage element 14. By providing the flow channel within the housing 10, which connects the first inner cavity 111 and the accommodating cavity 141, circulating heat from the first inner cavity 111 can be directed into the accommodating cavity 141, thereby heating and maintaining the heat of food within the accommodating cavity 141 and effectively enhancing the heat preservation effect of the storage element 14.

[0038] 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. An air fryer with heat preservation function, comprising a body, a cooking cavity provided in the body, and a hot air circulation system connected to the cooking cavity, characterized in that: The cooking cavity includes a first inner cavity, a duct plate is provided on the top of the first inner cavity, a second inner cavity is provided above the duct plate, the bottom wall of the second inner cavity is the duct plate that constitutes at least part of the first inner cavity, and a storage member with a accommodating cavity is detachably provided in the second inner cavity, the top of the storage member has a top opening, and the bottom is suitable for heat transfer cooperation with the duct plate.

2. The air fryer with heat preservation function according to claim 1, characterized in that: The hot air circulation system includes a first hot air circulation system arranged at the bottom of the first inner cavity and connected to the first inner cavity, a first frying basket with an open top is provided in the first inner cavity, a hot air gap is provided between the first frying basket and the inner wall of the first inner cavity, and a hot air hole connected to the hot air gap is provided at the bottom of the first frying basket. The circulating heat flow generated by the first hot air circulation system is suitable for flowing upward through the hot air gap, then flowing into the first frying basket from the top opening of the first frying basket, and then flowing out from the hot air hole at the bottom of the first frying basket and returning to the first hot air circulation system through the hot air gap.

3. The air fryer with heat preservation function according to claim 2, characterized in that: A heating pipe is provided on the heat flow circulation path of the first inner cavity, and the heating pipe is suitable for being arranged adjacent to the air duct plate.

4. The air fryer with heat preservation function according to claim 2, characterized in that: An annular air guide portion formed by the downward depression of the air duct plate is provided at a position on the top of the first inner cavity corresponding to the opening on the top of the first frying basket. The air guide portion is adapted to be arranged toward the middle of the bottom wall of the first frying basket.

5. The air fryer with heat preservation function according to claim 4, characterized in that: After the air duct plate is recessed downward, it is suitable for forming a groove with an upward opening at the bottom of the second inner cavity. The bottom of the storage piece is suitable for recessing downward to form a protrusion matching the groove. When the storage piece is arranged in the second inner cavity, the protrusion is suitable for being detachably engaged with the groove.

6. The air fryer with heat preservation function according to claim 4, characterized in that: The air duct plate is suitably made of a high-temperature resistant metal material with good thermal conductivity. A heating tube is provided around the guide portion of the air duct plate. At least a portion of the heating tube corresponds to the top opening of the first frying basket.

7. An air fryer with heat preservation function according to claim 3 or 6, characterized in that: A temperature sensor is provided within the machine body, at least partially extending into the first inner cavity, and a control system electrically connected to the temperature sensor, the hot air circulation system, and the heating pipe. When the temperature sensor detects that the temperature in the first inner cavity exceeds a maximum preset temperature, the control system is adapted to control the hot air circulation system and / or the heating pipe to stop operating.

8. The air fryer with heat preservation function according to claim 1, characterized in that: A top opening is provided at the top of the second inner cavity. A top cover is provided at the top opening for covering the top opening of the storage element and matching the top opening. The top cover is suitable for detachably matching with the top opening.

9. An air fryer with heat preservation function according to any one of claims 1 to 6, characterized in that: The storage piece is suitably made of a high-temperature resistant material with good thermal conductivity.

10. An air fryer with heat preservation function according to any one of claims 1 to 6, characterized in that: A guide channel is provided in the body, one end of the guide channel is adapted to be connected to the first inner cavity, and the other end of the guide channel is connected to the accommodating cavity of the storage element.

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