Air fryer

Abstract

The utility model relates to an air fryer which comprises a machine shell and a bottom heating assembly, a cooking cavity is formed in the machine shell, the machine shell is provided with a bottom plate, the bottom plate is arranged below the cooking cavity, and the bottom heating assembly comprises a fixing support, a heating piece and a heat transfer cover plate. The heat transfer cover plate is arranged on the upper end face of the bottom plate, an installation cavity is defined by the heat transfer cover plate and the bottom plate, the fixing support and the heating piece are both arranged in the installation cavity, and the heating piece is connected with the fixing support. The bottom heating assembly of the air fryer needs fewer parts, so that the bottom heating assembly is convenient to disassemble and assemble, and the production cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking appliances, and particularly to an air fryer. Background Art

[0002] An air fryer is a fryer that uses rapidly circulating hot air to heat food materials, so that the cooked food materials achieve the effect and taste of deep-fried food materials. In order to make up for the problem that the lower part of the food materials is insufficiently heated due to the stacking of food materials blocking the original hot air circulation, manufacturers usually set a heating component at the bottom of the air fryer. However, in the related art, the heating component at the bottom of the air fryer is stacked by multiple layers of plates and heating tubes, and the number of required components is large, which is not convenient for operators to disassemble and assemble the heating component, and the cost is high. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0004] Therefore, the utility model provides an air fryer which is convenient for disassembling and assembling the bottom heating component and has a relatively low production cost.

[0005] The air fryer of the utility model comprises: a housing, a cooking cavity is arranged inside the housing, the housing has a bottom plate, and the bottom plate is arranged below the cooking cavity; a bottom heating component, the bottom heating component includes a fixed bracket, a heating element and a heat transfer cover plate, the heat transfer cover plate is arranged on the upper end surface of the bottom plate and defines an installation cavity with the bottom plate, the fixed bracket and the heating element are both arranged in the installation cavity, and the heating element is connected with the fixed bracket.

[0006] According to the air fryer of the utility model, by installing the heating element in the installation cavity surrounded by the heat transfer cover plate and the bottom plate, and fixing the heating element through the fixed bracket, the structure of the bottom heating component can be made simple, the number of required components is small, the heat transfer effect of the bottom heating component can be ensured, the bottom heating component can be conveniently disassembled and assembled, and the production cost is low.

[0007] Optionally, the fixed bracket and the bottom plate are integrally formed. By designing the fixed bracket and the bottom plate as an integrally formed part, the air fryer of the utility model can reduce the number of component assemblies and is convenient for processing and manufacturing.

[0008] Optionally, the bottom heating component further includes a first fastener, and the fixed bracket and the bottom plate are connected through the first fastener. By connecting the fixed bracket and the bottom plate through the first fastener, the air fryer of the utility model can select different types of fixed brackets for installation according to different forms of heating elements, thereby improving the flexibility of the fixed bracket arrangement.

[0009] Optionally, there are a plurality of the fixing brackets, and the plurality of fixing brackets are arranged at intervals on the bottom plate. By installing a plurality of fixing brackets arranged at intervals, the air fryer of the present utility model can improve the firmness of the installation of the fixing brackets and the heating element, reduce the problem of the heating element shaking relative to the bottom plate, and improve the reliability during the operation of the air fryer.

[0010] Optionally, the fixing bracket is arranged on the bottom plate, and the heating element is snap-connected to the fixing bracket. This can improve the convenience of disassembly and assembly of the fixing bracket and the heating element.

[0011] Optionally, the fixing bracket includes a connected fixing section, a snap-connection section, and a plug-in section. The bottom heating assembly further includes a first fastener. The fixing section and the bottom plate are connected by the first fastener. A card slot is provided on the snap-connection section, and the heating element is installed in the card slot. A matching hole is provided on the bottom plate, and the plug-in section is plugged into the matching hole. Since the plug-in section is plugged into the matching hole, the plug-in section can be fixed relative to the bottom plate to prevent the problem of the fixing bracket shaking relative to the bottom plate. In addition, the plug-in section can pre-position the fixing bracket, which is convenient for the operator to pass the first fastener through the fixing section and the bottom plate, improving the convenience of installing the fixing bracket.

[0012] Optionally, the fixing bracket is bent along a preset direction to form the fixing section, the snap-connection section, and the plug-in section. There are at least two plug-in sections. One plug-in section is connected to the fixing section, and the other plug-in section is connected to the snap-connection section. Since the fixing bracket is bent along a preset direction to form the fixing section, the snap-connection section, and the plug-in section, the convenience of processing the fixing bracket is improved. In addition, since one plug-in section is connected to the fixing section and the other plug-in section is connected to the snap-connection section, the problem of the fixing bracket shaking relative to the bottom plate and the heating element can be further restricted, improving the reliability of installing the fixing bracket.

[0013] Optionally, a receiving groove is provided on the upper end surface of the bottom plate. The receiving groove and the heat transfer cover plate enclose the installation cavity, and at least part of the heating element is arranged in the receiving groove. By providing a receiving groove on the upper end surface of the bottom plate, the air fryer of the present utility model can reduce the occupation of the space of the cooking cavity by the heating element and the heat transfer cover plate, and make the overall structure of the bottom heating assembly compact and have better integrity.

[0014] Optionally, the heating element is a heating tube, and the outer peripheral contour of the heating tube is arranged in a "concave" shape. By setting the heating tube in the above structure, the air fryer of the present utility model can extend the heating path of the heating tube and has a higher heat transfer efficiency.

[0015] Optionally, the lower end surface of the heat transfer cover plate abuts against the heating element, and the upper end surface of the bottom plate is spaced apart from the heating element. By abutting the lower end surface of the heat transfer cover plate against the heating element, the air fryer of the present utility model can increase the heat transferred from the heating element to the heat transfer cover plate. By spacing apart the upper end surface of the bottom plate from the heating element, the heat transferred from the heating element to the bottom plate can be reduced, thereby improving the overall heat transfer efficiency of the bottom heating assembly.

[0016] Optionally, the bottom heating assembly further includes a temperature control element disposed in the installation cavity and electrically connected to the heating element. The temperature control element is used to control the heating power and heating time of the heating element. By providing the temperature control element, the air fryer of the present utility model can control the heating temperature and heating period of the bottom heating assembly, thereby improving the cooking effect of the air fryer. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the air fryer according to an embodiment of the present utility model.

[0018] Figure 2 is a schematic diagram of the inner pot of the air fryer according to an embodiment of the present utility model being pulled out of the cooking cavity.

[0019] Figure 3 is an exploded view of the bottom plate, the bottom heating assembly of the air fryer according to an embodiment of the present utility model.

[0020] Figure 4 is an exploded view of the bottom plate, the bottom heating assembly of the air fryer according to another embodiment of the present utility model.

[0021] Figure 5 is an installation schematic diagram of the bottom plate and the bottom heating assembly of the air fryer according to an embodiment of the present utility model.

[0022] Figure 6 is an installation schematic diagram of the bottom plate and the bottom heating assembly (removing the heat transfer cover plate) of the air fryer according to an embodiment of the present utility model.

[0023] Figure 7 is an installation schematic diagram of the bottom plate and the fixing bracket of the air fryer according to an embodiment of the present utility model.

[0024] Figure 8 is Figure 7 an enlarged view of A in

[0025] Figure 9 is a schematic diagram of the bottom plate of the air fryer according to an embodiment of the present utility model.

[0026] Reference Signs:

[0027] 1. Housing; 11. Cooking cavity; 12. Bottom plate; 121. Receiving groove; 122. Fitting hole; 13. Installation cavity;

[0028] 2. Bottom heating assembly; 21. Fixed bracket; 211. Fixed section; 212. Clamping section; 2121. Card slot; 213. Insertion section; 22. Heating element; 23. Heat transfer cover plate; 24. Temperature control element;

[0029] 3. Inner pot. Detailed implementation manner

[0030] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0031] Reference will be made below to the attached Figures 1 to 9 to describe the air fryer according to the embodiments of the present utility model.

[0032] As Figures 1 to 4 shown, the air fryer according to the embodiments of the present utility model includes a housing 1 and a bottom heating assembly 2. A cooking cavity 11 is provided inside the housing 1. The housing 1 has a bottom plate 12, and the bottom plate 12 is provided below the cooking cavity 11. The bottom heating assembly 2 includes a fixed bracket 21, a heating element 22 and a heat transfer cover plate 23. The heat transfer cover plate 23 is provided on the upper end surface of the bottom plate 12 and defines an installation cavity 13 with the bottom plate 12. The fixed bracket 21 and the heating element 22 are both provided in the installation cavity 13, and the heating element 22 is connected to the fixed bracket 21.

[0033] According to the air fryer of the embodiments of the present utility model, by installing the heating element 22 in the installation cavity 13 surrounded by the heat transfer cover plate 23 and the bottom plate 12, and fixing the heating element 22 through the fixed bracket 21, the structure of the bottom heating assembly 2 can be made simple, the number of required components is small, the heat transfer effect of the bottom heating assembly 2 can be ensured, the disassembly and assembly of the bottom heating assembly 2 can be facilitated, and the production cost is low.

[0034] Specifically, the air fryer further includes a top heating assembly (not shown). The top heating assembly is provided inside the housing 1 and is located above the cooking cavity 11. The top heating assembly and the bottom heating assembly 2 can jointly heat to enable the air fryer to form a three-dimensional heating structure, which can improve the cooking effect of the air fryer, thereby compensating for the problem that the original hot air circulation is blocked by the stacked food materials, resulting in insufficient heating of the lower part of the food materials and insufficient coloring effect.

[0035] In the related art, structures such as clamping plates and heat insulation plates are usually arranged below the bottom heating assembly 2, resulting in a large number of components of the bottom heating assembly 2, complex assembly processes, and high costs. However, in the air fryer according to the embodiment of the present utility model, the heat transfer cover plate 23 and the bottom plate 12 jointly clamp and fix the heating element 22, which can save the number of component assemblies, reduce the assembly processes of the bottom heating assembly 2, and reduce production costs.

[0036] On the other hand, through experimental research, the inventors of the present application found that since the core function of the bottom heating assembly 2 is to solve the problems of poor coloring at the bottom of the food ingredients and insufficient water loss rate, the bottom heating assembly 2 does not need to work for a long time. For example, when cooking food ingredients such as egg tarts, French fries, and chicken wings, the working time of the bottom heating assembly 2 is short, so heat insulation parts can be omitted, thereby reducing the number of component assemblies.

[0037] Optionally, as Figure 3 shown, the bottom heating assembly 2 further includes a temperature control element 24. The temperature control element 24 is arranged in the installation cavity 13 and is electrically connected to the heating element 22. The temperature control element 24 is used to control the heating power and heating time of the heating element 22. By setting the temperature control element 24 in the air fryer according to the embodiment of the present utility model, the heating temperature and heating period of the bottom heating assembly 2 can be controlled, thereby improving the cooking effect of the air fryer.

[0038] In one example, as Figure 4 shown, the fixing bracket 21 and the bottom plate 12 are integrally formed. By designing the fixing bracket 21 and the bottom plate 12 as an integrally formed part in the air fryer according to the embodiment of the present utility model, the number of component assemblies can be reduced, and the processing and manufacturing are convenient. For example, the bottom plate 12 and the fixing bracket 21 are an integral stamping sheet metal part.

[0039] In another example, as Figure 6 and Figure 7 shown, the bottom heating assembly 2 further includes a first fastener (not shown). The fixing bracket 21 and the bottom plate 12 are connected by the first fastener. By connecting the fixing bracket 21 and the bottom plate 12 with the first fastener in the air fryer according to the embodiment of the present utility model, different types of fixing brackets 21 can be selected for installation according to different forms of the heating element 22, thereby improving the flexibility of the arrangement of the fixing bracket 21. For example, the first fastener can be a threaded part or a rivet.

[0040] Optionally, as Figure 6 and Figure 7As shown, there are multiple fixing brackets 21, and the multiple fixing brackets 21 are arranged at intervals on the bottom plate 12. By installing multiple fixing brackets 21 arranged at intervals, the air fryer according to the embodiment of the present utility model can improve the firmness of the installation of the fixing brackets 21 and the heating element 22, reduce the problem of the heating element 22 shaking relative to the bottom plate 12, and improve the reliability during the operation of the air fryer.

[0041] For example, there are four fixing brackets 21, and the four fixing brackets 21 are arranged at intervals along the circumferential direction of the bottom plate 12, and the four fixing brackets 21 are all connected to the bottom plate 12 through corresponding first fasteners.

[0042] Optionally, as Figures 6 to 8 shown, the fixing bracket 21 is arranged on the bottom plate 12, and the heating element 22 is snap-connected to the fixing bracket 21, thereby improving the convenience of disassembly and assembly of the fixing bracket 21 and the heating element 22. For example, the fixing bracket 21 is a metal elastic sheet structure, and the heating element 22 can be fixed to the fixing bracket 21 by using the metal card slot on the fixing bracket 21.

[0043] In one example, as Figure 8 and Figure 9 shown, the fixing bracket 21 includes a connected fixing section 211, a snap connection section 212 and a plug-in section 213. The bottom heating assembly 2 further includes a first fastener (not shown). The fixing section 211 and the bottom plate 12 are connected by the first fastener. A card slot 2121 is provided on the snap connection section 212, the heating element 22 is installed in the card slot 2121, and a mating hole 122 is provided on the bottom plate 12. The plug-in section 213 is plugged into the mating hole 122. Since the plug-in section 213 is plugged into the mating hole 122, the plug-in section 213 can be fixed relative to the bottom plate 12 to prevent the fixing bracket 21 from shaking relative to the bottom plate 12. In addition, the plug-in section 213 can pre-position the fixing bracket 21, which is convenient for the operator to pass the first fastener through the fixing section 211 and the bottom plate 12, improving the convenience of installing the fixing bracket 21.

[0044] As Figure 8 shown, the fixing bracket 21 is bent along a preset direction to form a fixing section 211, a snap connection section 212 and a plug-in section 213. For example, the fixing bracket 21 is a sheet metal structural part, and the fixing section 211, the snap connection section 212 and the plug-in section 213 can be formed by stamping, thereby reducing the manufacturing difficulty of the fixing bracket 21 and having a simple processing technology.

[0045] As Figure 8 shown, there are at least two plug-in sections 213. One plug-in section 213 is connected to the fixing section 211, and the other plug-in section 213 is connected to the snap connection section 212. Thereby, the problem of the fixing bracket 21 shaking relative to the bottom plate 12 and the heating element 22 can be further restricted, improving the reliability of the installation of the fixing bracket 21.

[0046] Optionally, as Figure 6 and Figure 7 shown, a receiving groove 121 is provided on the upper end surface of the bottom plate 12. The receiving groove 121 and the heat transfer cover plate 23 enclose an installation cavity 13, and at least part of the heating element 22 is arranged in the receiving groove 121. By providing the receiving groove 121 on the upper end surface of the bottom plate 12, the air fryer according to the embodiment of the present invention can reduce the occupation of the space of the cooking cavity 11 by the heating element 22 and the heat transfer cover plate 23, and make the overall structure of the bottom heating assembly 2 compact and have good integrity.

[0047] After the heat transfer cover plate 23 is installed on the bottom plate 12, since the receiving groove 121 is provided on the bottom plate 12, the upper end surface of the heat transfer cover plate 23 can be substantially flush with the upper end surface of the bottom plate 12, thereby reducing the occupation of the space below the cooking cavity 11 by the bottom heating assembly 2. In addition, since the upper end surface of the bottom heating assembly 2 is relatively flat, it is convenient to install the inner pot 3 on the upper end surface of the bottom heating assembly 2, and the inner pot 3 is slidably installed in the cooking cavity 11.

[0048] For example, as Figure 3 and Figure 4 shown, the heating element 22 is a heating tube, and the outer peripheral contour of the heating tube is arranged in a "concave" shape. By setting the heating tube in the above structure, the air fryer according to the embodiment of the present invention can extend the heating path of the heating tube and has a high heat transfer efficiency.

[0049] For another example, the heating element 22 can be spirally wound in the installation cavity 13 to further improve the heating efficiency of the bottom heating assembly 2.

[0050] Further, the lower end surface of the heat transfer cover plate 23 abuts against the heating element 22, and the upper end surface of the bottom plate 12 is spaced apart from the heating element 22. By abutting the lower end surface of the heat transfer cover plate 23 against the heating element 22, the air fryer according to the embodiment of the present invention can increase the heat transferred from the heating element 22 to the heat transfer cover plate 23. By spacing apart the upper end surface of the bottom plate 12 from the heating element 22, the heat transferred from the heating element 22 to the bottom plate 12 can be reduced. Thus, the overall heat transfer efficiency of the bottom heating assembly 2 can be improved.

[0051] For example, the heat transfer cover plate 23 can be made of a material with a high thermal conductivity to further improve the heat transfer efficiency of the heat transfer cover plate 23. The heat transfer cover plate 23 and the bottom plate 12 can be connected by riveting studs. For example, there are three riveting studs and they are equally spaced along the circumference of the heat transfer cover plate 23.

[0052] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0053] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0054] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0056] In the present utility model, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0057] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Variations, modifications, substitutions and variations made by those of ordinary skill in the art to the above embodiments are all within the protection scope of the present utility model.

Claims

1. An air fryer, characterized in that: include: A casing (1), wherein a cooking cavity (11) is provided in the casing (1), and the casing (1) has a bottom plate (12), wherein the bottom plate (12) is provided below the cooking cavity (11); A bottom heating component (2), the bottom heating component (2) comprising a fixed bracket (21), a heating element (22) and a heat transfer cover plate (23), the heat transfer cover plate (23) being arranged on the upper end surface of the bottom plate (12) and defining a mounting cavity (13) with the bottom plate (12), the fixed bracket (21) and the heating element (22) being both arranged in the mounting cavity (13), and the heating element (22) being connected to the fixed bracket (21).

2. The air fryer according to claim 1, characterized in that: The fixing bracket (21) and the bottom plate (12) are integrally formed; Alternatively, the bottom heating assembly (2) further comprises a first fastener, and the fixing bracket (21) and the bottom plate (12) are connected via the first fastener.

3. The air fryer according to claim 2, characterized in that: There are a plurality of fixing brackets (21), and the plurality of fixing brackets (21) are arranged at intervals on the bottom plate (12).

4. The air fryer according to claim 1, characterized in that: The fixing bracket (21) is arranged on the bottom plate (12), and the heating element (22) is clamped with the fixing bracket (21).

5. The air fryer according to claim 4, characterized in that: The fixing bracket (21) comprises a connected fixing section (211), a clamping section (212) and an inserting section (213); the bottom heating assembly (2) further comprises a first fastener; the fixing section (211) and the bottom plate (12) are connected via the first fastener; a clamping groove (2121) is provided on the clamping section (212); the heating element (22) is installed in the clamping groove (2121); a matching hole (122) is provided on the bottom plate (12); the inserting section (213) is inserted into the matching hole (122).

6. The air fryer according to claim 5, characterized in that: The fixing bracket (21) is bent along a preset direction to form the fixing section (211), the clamping section (212) and the plug-in section (213), and there are at least two plug-in sections (213), one of the plug-in sections (213) is connected to the fixing section (211), and the other of the plug-in sections (213) is connected to the clamping section (212).

7. The air fryer according to claim 1, characterized in that: The upper end surface of the bottom plate (12) is provided with a receiving groove (121), and the receiving groove (121) and the heat transfer cover plate (23) together enclose the installation cavity (13), and at least part of the heating element (22) is arranged in the receiving groove (121).

8. The air fryer according to claim 7, characterized in that: The heating element (22) is a heating tube, and the outer peripheral contour of the heating tube is arranged in a "concave" shape.

9. The air fryer according to claim 1, characterized in that: The lower end surface of the heat transfer cover plate (23) is in contact with the heating element (22), and the upper end surface of the bottom plate (12) is spaced apart from the heating element (22).

10. The air fryer according to any one of claims 1 to 9, characterized in that: The bottom heating assembly (2) further comprises a temperature control element (24), wherein the temperature control element (24) is disposed in the installation cavity (13) and is electrically connected to the heating element (22), and the temperature control element (24) is used to control the heating power and heating time of the heating element (22).

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