Air fryer

Abstract

The utility model provides an air fryer which comprises a cooking drawer suitable for containing food, a containing cavity suitable for containing the cooking drawer and a machine head assembly suitable for providing circulating hot air for the cooking drawer to heat the food, and the machine head assembly comprises a machine head shell, a heat insulation cover shell and a heat gathering cover shell. A machine head cavity, a main air inlet and a main air outlet are formed in the machine head shell, the heat insulation cover shell is arranged in the machine head shell, the interior of the machine head cavity is divided into a cold air cavity, a first draught fan is arranged in the cold air cavity, the heat insulation cover shell comprises a first air inlet, and the heat collection cover shell is arranged below a cage cover of the heat insulation cover shell. A heat insulation cavity is formed between the heat gathering housing and the heat insulation housing, a hot air cavity is defined by the heat gathering housing and the cooking drawer, and a second fan and a heating element are arranged in the hot air cavity. The cold air cavity and the heat insulation cavity are separated through the heat insulation cover shell, the surface temperature of the machine head assembly can be reduced, and the scalding risk of a user is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchenware, and in particular relates to an air fryer. Background Art

[0002] There is a lack of heat insulation structure between the cold air chamber and the hot air chamber of the air fryers currently on the market. The upper surface of the air guide plate participates in the enclosure to form the cold air chamber. During the heating process, the hot air will be thrown out from the air outlet provided by the air guide plate. The air guide plate continuously and directly radiates a large amount of heat to the cold air chamber, resulting in a higher temperature in the cold air chamber, which in turn leads to the problem of higher surface temperature of the product. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide an air fryer to meet the needs of users.

[0004] To achieve the above object, the utility model provides an air fryer, comprising a cooking drawer suitable for holding food, a receiving cavity suitable for accommodating the cooking drawer, and a head assembly suitable for providing circulating hot air to the cooking drawer for heating food, the head assembly comprising

[0005] The head housing forms a head cavity, a main air inlet and a main air outlet.

[0006] The heat-insulating cover is arranged in the head housing and is separated into a cold air cavity in the head cavity. The cold air cavity is provided with a first fan. The heat-insulating cover includes a first air inlet.

[0007] A heat collecting cover is arranged under the cover of the heat insulating cover, a heat insulating cavity is provided between the heat collecting cover and the heat insulating cover, the heat collecting cover and the cooking drawer are enclosed to form a hot air cavity, a second fan and a heating element are arranged in the hot air cavity,

[0008] The main air outlet includes a first air outlet suitable for connecting to the cold air chamber and a second air outlet suitable for connecting to the insulation cavity, and / or the cold air chamber includes a first air duct suitable for connecting to the main air outlet, and the insulation cover includes a second air duct suitable for connecting to the insulation cavity and the main air outlet.

[0009] As a preferred embodiment: the first air outlet and the second air outlet are not connected to each other, the cold air chamber is directly connected to the first air outlet or the cold air chamber is connected to the first air outlet through the first air duct, and the hot air chamber is directly connected to the second air outlet or the insulation cavity is connected to the second air outlet through the second air duct.

[0010] The first fan is suitable for introducing cold air in the environment into the cold air chamber through the main air inlet, and part of the cold air flows out through the first air outlet. The second fan is suitable for introducing part of the cold air in the cold air chamber into the hot air chamber through the first air inlet and being heated into hot air by the heating element. The hot air circulates in the hot air chamber and flows out through the second air outlet.

[0011] Preferably, the second air duct is arranged parallel to the first air duct.

[0012] Preferably, a first fan cover suitable for installing the first fan is arranged in the cold air chamber, and a heat insulating gap is provided between the first fan cover and the heat insulating cover shell.

[0013] Preferably, the first fan cover comprises a first fan cavity suitable for installing and accommodating the first fan and a first air duct suitable for guiding cold air to the main air outlet, and the first air duct is connected to the first air outlet.

[0014] Preferably, the first fan cavity and the first air duct are suitable for forming a horizontally arranged volute structure, and the first fan is a centrifugal fan.

[0015] Preferably, the first fan cover comprises a first top plate and a first bottom plate, the first top plate is suitable for installing a motor device and comprises a plurality of first vents, the motor device is suitable for driving the first fan and the second fan simultaneously, and there is the insulation gap between the insulation cover shell and the first bottom plate.

[0016] Preferably, the heat-insulating cover shell comprises a mounting plate arranged corresponding to the first bottom plate, a plurality of pillars extend downward from the first bottom plate, the pillars are detachably connected to the mounting plate, and the pillars are suitable for limiting the distance of the heat-insulating gap.

[0017] Preferably, the first bottom plate includes a plurality of second vents, and the main air outlet is connected to the thermal insulation gap.

[0018] Preferably, the heat collecting shell includes a boss suitable for accommodating the second fan, the boss includes a second top plate and a second peripheral wall, the second top plate includes a plurality of second air inlets suitable for connecting to the heat insulation cavity, and the second peripheral wall includes an inner air outlet arranged facing the second air duct.

[0019] The beneficial effects of the utility model are:

[0020] (1) A heat-insulating cover is provided to separate the cold air chamber and the heat-insulating chamber. The heat-insulating chamber and the heat-insulating cover are suitable for blocking the heat radiated from the heat-collecting cover to the cold air chamber, thereby reducing the heat radiation received by the cold air. The temperature of the exhausted air is lower, which can reduce the surface temperature of the head assembly and reduce the risk of scalding for the user.

[0021] (2) By setting a heat-insulating gap between the first fan cover and the heat-insulating cover shell, and the first fan cover being detachable, it is helpful to reduce the heat radiation received by the cold air chamber and the first fan cover, so that the structural strength capable of supporting the motor device can be maintained for a long time.

[0022] (3) By setting a first air outlet and a second air outlet that are not connected, the heat integration of cold air and hot air during the air outlet process is avoided, or by setting a first air duct and a second air duct to guide the cold air and hot air to the main air outlet respectively, thereby reducing the time for the heat integration of cold air and hot air during the air outlet process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a structural schematic diagram of an air fryer provided by the utility model.

[0024] Figure 2 The utility model provides an explosion schematic diagram of an air fryer.

[0025] Figure 3 This is a cross-sectional schematic diagram of the head assembly provided by the utility model.

[0026] Figure 4 This is an internal schematic diagram of the head assembly provided by the utility model.

[0027] Figure 5 This is a schematic structural diagram of the heat insulation cover provided by the utility model.

[0028] Figure 6 The utility model provides a schematic structural diagram of the heat collection cover.

[0029] Figure 7 This is an exploded schematic diagram of the first fan cover provided by the utility model.

[0030] In the figure, a cooking drawer 101, a accommodating cavity 102, a head assembly 103, a head shell 104, a main air inlet 105, a main air outlet 106, a heat-insulating cover 107, a heat-collecting cover 108, a cold air cavity 109, a heat-insulating cavity 110, a first fan cover 111, a heat-insulating gap 112, a first fan cavity 113, a first air duct 114, a first fan 115, a first top plate 116, a first bottom plate 117, a first vent 118, a second vent 119, a pillar 120, a mounting plate 121, a second fan 122, a second air duct 123, a first air inlet 124, a boss 125, a second top plate 126, a second air inlet 127, an inner air outlet 128, a motor device 129, and a second peripheral wall 130. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] like Figure 1-7 The air fryer comprises a cooking drawer 101 suitable for holding food, a receiving cavity 102 suitable for accommodating the cooking drawer 101, and a head assembly 103 suitable for providing circulating hot air to the cooking drawer 101 for heating food. The head assembly 103 comprises a head shell 104, a heat-insulating cover 107, and a heat-collecting cover 108. The head shell 104 forms a head cavity, a main air inlet 105, and a main air outlet 106. The main air inlet 105 is formed on the upper surface of the head shell, and the main air outlet 106 is embedded in the back of the head shell. The heat-insulating cover 107 is arranged in the head shell 104 and is separated into a cold air cavity 109 in the head cavity. A first fan cover 111 is arranged in the cold air cavity 109, and a heat-insulating gap 112 is provided between the first fan cover 111 and the heat-insulating cover 107. The first fan cover 111 includes a first fan 115 cavity 113 and a first air duct 114 suitable for forming a horizontally arranged volute structure. The first fan 115 is built in the first fan cover 111. The first fan 115 is a centrifugal fan. The heat collecting cover 108 is arranged under the cover of the heat insulating cover 107 and separated to form a heat insulating cavity 110. The heat collecting cover 108 and the cooking drawer 101 are enclosed to form a hot air cavity. The second fan 122 and the heating element are arranged in the hot air cavity.

[0035] In this embodiment, the first fan cover 111 includes a first top plate 116 and a first bottom plate 117. The first top plate 116 is suitable for installing a motor device 129 and includes a plurality of first vents 118. The motor device 129 is suitable for driving the first fan 115 and the second fan 122 at the same time. There is a heat insulation gap 112 between the heat insulation cover 107 and the first bottom plate 117. Further, the heat insulation cover 107 includes a mounting plate 121 corresponding to the first bottom plate 117. The first bottom plate 117 extends downwardly from a plurality of pillars 120. The pillars 120 are detachably connected to the mounting plate 121. The pillars 120 are suitable for defining the distance of the heat insulation gap 112. The first bottom plate 117 includes a plurality of second vents 119. The main air outlet 106 is connected to the heat insulation gap 112. The first fan 115 is adapted to introduce cold air in the environment into the cold air chamber 109 through the main air inlet 105 , and part of the cold air further enters the first fan 115 chamber 113 and is guided to the main air outlet 106 through the first air duct 114 .

[0036] In this embodiment, the heat-insulating housing 107 includes a first air inlet 124 and a second air duct 123 connecting the heat-insulating cavity 110 and the main air outlet 106, and the second air duct 123 is arranged parallel to the first air duct 114. The heat-collecting housing 108 includes a boss 125 suitable for accommodating the second fan 122, the boss 125 includes a second top plate 126 and a second peripheral wall 130, the second top plate 126 includes a plurality of second air inlets 127 suitable for connecting the heat-insulating cavity 110, and the second peripheral wall 130 includes an inner air outlet 128 arranged facing the second air duct 123. Further, the boss 125 also has a spiral trend, and the inner air outlet 128 is arranged near the inlet end of the second air duct 123. The second fan 122 is suitable for introducing part of the cold air in the cold air cavity 109 into the insulation cavity 110 through the first air inlet 124, and then introduced into the hot air cavity through the second air inlet 127 and heated into hot air by the heating element. After the hot air circulates in the hot air cavity, it flows into the second air duct 123 through the inner air outlet 128 and finally guides it to flow out from the main air outlet 106.

[0037] In some other embodiments, the main air outlet 106 includes a first air outlet and a second air outlet, the first air outlet and the second air outlet are not connected to each other, the cold air chamber 109 is directly connected to the first air outlet, and the hot air chamber is directly connected to the second air outlet, or, the cold air chamber 109 is connected to the first air outlet through the first air duct 114, and the insulation cavity 110 is connected to the second air outlet through the second air duct 123.

[0038] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. An air fryer, comprising a cooking drawer for holding food, a receiving cavity for accommodating the cooking drawer, and a head assembly for providing circulating hot air to the cooking drawer for heating food, characterized in that: The head assembly includes The head housing forms a head cavity, a main air inlet and a main air outlet. The heat-insulating cover is arranged in the head housing and is separated into a cold air cavity in the head cavity. The cold air cavity is provided with a first fan. The heat-insulating cover includes a first air inlet. A heat collecting cover is arranged under the cover of the heat insulating cover, a heat insulating cavity is provided between the heat collecting cover and the heat insulating cover, the heat collecting cover and the cooking drawer are enclosed to form a hot air cavity, a second fan and a heating element are arranged in the hot air cavity, The main air outlet includes a first air outlet suitable for connecting to the cold air chamber and a second air outlet suitable for connecting to the insulation cavity, and / or the cold air chamber includes a first air duct suitable for connecting to the main air outlet, and the insulation cover includes a second air duct suitable for connecting to the insulation cavity and the main air outlet.

2. An air fryer according to claim 1, characterized in that: The first air outlet is not connected to the second air outlet, the cold air cavity is directly connected to the first air outlet or the cold air cavity is connected to the first air outlet through the first air duct, and the hot air cavity is directly connected to the second air outlet or the heat insulation cavity is connected to the second air outlet through the second air duct; The first fan is suitable for introducing cold air in the environment into the cold air chamber through the main air inlet, and part of the cold air flows out through the first air outlet. The second fan is suitable for introducing part of the cold air in the cold air chamber into the hot air chamber through the first air inlet and being heated into hot air by the heating element. The hot air circulates in the hot air chamber and flows out through the second air outlet.

3. An air fryer according to claim 1 or 2, characterized in that: The second air duct is arranged parallel to the first air duct.

4. An air fryer according to claim 3, characterized in that: The cold air chamber is provided with a first fan cover suitable for installing the first fan, and a heat insulating gap is provided between the first fan cover and the heat insulating cover shell.

5. An air fryer according to claim 4, characterized in that: The first fan cover includes a first fan cavity suitable for installing and accommodating the first fan and a first air duct suitable for guiding cold air to the main air outlet, and the first air duct is connected to the first air outlet.

6. An air fryer according to claim 5, characterized in that: The first fan cavity and the first air duct are suitable for forming a horizontally arranged volute structure, and the first fan is a centrifugal fan.

7. An air fryer according to claim 6, characterized in that: The first fan cover includes a first top plate and a first bottom plate, the first top plate is suitable for installing a motor device and includes a plurality of first vents, the motor device is suitable for driving the first fan and the second fan simultaneously, and the insulation gap is provided between the insulation cover shell and the first bottom plate.

8. An air fryer according to claim 7, characterized in that: The heat-insulating cover shell includes a mounting plate arranged corresponding to the first bottom plate, and a plurality of pillars extend downward from the first bottom plate. The pillars are detachably connected to the mounting plate, and the pillars are suitable for limiting the distance of the heat-insulating gap.

9. An air fryer according to claim 8, characterized in that: The first bottom plate includes a plurality of second vents, and the main air outlet is communicated with the thermal insulation gap.

10. An air fryer according to claim 3, characterized in that: The heat collecting housing includes a boss suitable for accommodating the second fan, the boss includes a second top plate and a second peripheral wall, the second top plate includes a plurality of second air inlets suitable for communicating with the heat insulation cavity, and the second peripheral wall includes an inner air outlet arranged facing the second air duct.

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