A bladeless air fryer

Abstract

The present invention discloses a bladeless air fryer, which relates to the technical field of food cooking equipment. The present invention includes an air guiding system, a shell, a cooking cavity arranged in the shell, a heating component, and a heat insulation component arranged between the cooking cavity and the shell. The air guiding system includes: an air inlet arranged at the upper part and / or the lower part of the shell and / or located between the upper part and the lower part; an exhaust port; a fan; a first air duct formed between the shell and the heat insulation component, which is used to connect the air inlet with the fan fluid; a second air duct for fluidly connecting the fan and the cooking cavity; a third air duct for fluidly connecting the cooking cavity and the exhaust port; wherein an annular air guide is provided in the second air duct for guiding air into the cooking cavity. The present invention has the advantages of air heat balance, simple and clean overall device, compact structure, and more convenient miniaturization design of the product through reasonable design of the structure.

Description

Technical Field

[0001] The invention belongs to the technical field of food cooking equipment, and in particular relates to a bladeless air fryer. Background Art

[0002] An air fryer is a machine that can use air to "fry". It mainly uses air to replace the hot oil in the frying pan to cook the food. At the same time, the hot air blows away the moisture on the surface of the food, making the ingredients achieve an effect similar to frying. However, existing air fryers use fan blades to stir the air and send air into the air fryer. The air temperature is unstable, and it is inconvenient to clean the entire air fryer. The structure is loose, which is not conducive to the miniaturization design of the product. Summary of the invention

[0003] The purpose of the present invention is to provide a bladeless air fryer to solve the existing problem: the existing air fryers use fan blades to stir the air and send the air into the air fryer, the air temperature is unstable, and it is inconvenient to clean the air fryer as a whole. The structure is loose, which is not conducive to the miniaturization design of the product.

[0004] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a bladeless air fryer, the air fryer comprising:

[0005] An air guiding system, a shell, a cooking cavity arranged in the shell, a heating component for heating the cooking cavity, and a heat insulating component arranged between the cooking cavity and the shell, wherein the air guiding system comprises:

[0006] An air inlet disposed at the upper portion and / or the lower portion of the housing and / or located between the upper portion and the lower portion;

[0007] Exhaust port;

[0008] Annular air guide;

[0009] Fan;

[0010] There is a gap between the shell and the heat insulation assembly to form a first air duct;

[0011] Used to connect the air inlet with the annular air guide fluid under the action of the fan;

[0012] a first air duct for fluidly connecting the air inlet and the annular air guide;

[0013] a second air duct for fluidly connecting the annular air guide member and the cooking cavity;

[0014] a third air duct for fluidly connecting the cooking cavity and the exhaust port;

[0015] The fan is configured to transport air between the air inlet and the annular air guide through a first air duct, transport air between the annular air guide and the cooking cavity through a second air duct, and transport air between the cooking cavity and the exhaust port through a third air duct.

[0016] Further preferably, the annular air guide member is a circular tubular structure, an air passage is formed inside the annular air guide member, and an upper portion and / or a lower portion of the annular air guide member is provided with air guide holes opening toward the cooking cavity.

[0017] Further preferably, outside air enters the first air duct through at least one of the air inlets.

[0018] Further preferably, the exhaust port extends to the shell and passes through the outer shell to communicate with the outside.

[0019] Further preferably, the heat insulation assembly includes heat insulation plates arranged around and at the bottom of the cooking cavity, and a heat insulation reflective plate arranged on the top of the cooking cavity, and the heat insulation plates and the heat insulation reflective plate enclose the cooking cavity.

[0020] Further preferably, it also includes a control component for controlling the bladeless air fryer, and the control component is arranged in the first air duct.

[0021] Further preferably, the heating assembly is arranged below the air guide hole of the annular air guide member.

[0022] Further preferably, it also includes an openable and closable door assembly, which includes a door body, a handle, and a fryer.

[0023] Further preferably, through holes are provided on the top and bottom of the door body, and a hollow cavity is provided inside the door body, and the hollow cavity is connected with the through holes to form a heat dissipation duct for the door body.

[0024] Further preferably, at least one air guide inlet communicating with the first air duct is provided on the outer side wall of the annular air guide member.

[0025] The present invention has the following beneficial effects:

[0026] The present invention has the advantages of air heat balance, simple and clean overall device, compact structure and more convenient miniaturization design of the product through reasonable design of the structure.

[0027] After the air enters the air inlet of the present invention and before reaching the fan, it can be considered to be dissipating heat for the shell and components, and further heating the air through the heater of the cooking cavity, thereby cooking food. The airflow drive for dissipating heat for the body and heating the cooking cavity can be achieved through a fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of the air fryer with the air inlet at the top;

[0030] Figure 2 This is a schematic diagram of the structure of the air fryer with the air inlet at the bottom;

[0031] Figure 3 This is a schematic diagram of the structure of the air fryer with the air inlet in the middle;

[0032] Figure 4 It is a structural schematic diagram of the heating component of the present invention;

[0033] Figure 5 It is an overall expanded view of the present invention;

[0034] Figure 6 It is a schematic structural diagram of the heat insulation assembly of the present invention;

[0035] Figure 7 It is a structural diagram of the door body assembly of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Shell; 2. Cooking cavity; 3. Door assembly; 4. Heating assembly; 5. Annular air guide; 5.1. Air inlet; 5.2. Central through hole; 5.3. Air guide hole; 6. Heat insulation assembly; 6.1. Heat insulation board; 6.2. Heat insulation reflective board; 7. Fan; 1.1. Air inlet; 1.2. Exhaust port; 3.1. Through hole. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The air fryer comprises: an air guiding system, a housing 1, a cooking cavity 2 arranged in the housing 1, a heating component 4 for heating the cooking cavity 2, and a heat insulating component 6 arranged between the cooking cavity 2 and the housing 1. The air guiding system comprises:

[0040] An air inlet 1.1 arranged at the upper part and / or the lower part of the housing 1 and / or at a position between the upper part and the lower part;

[0041] Exhaust port 1.2;

[0042] Annular air guide 5;

[0043] Fan 7;

[0044] There is a gap between the shell 1 and the heat insulation assembly 6 to form a first air duct;

[0045] Used to connect the air inlet 1.1 with the annular air guide 5 under the action of the fan 7;

[0046] A first air duct for fluidly connecting the air inlet 1.1 and the annular air guide 5;

[0047] a second air duct for fluidly connecting the annular air guide member 5 and the cooking cavity 2;

[0048] A third air duct for fluidly connecting the cooking cavity 2 and the exhaust port 1.2;

[0049] The fan 7 is configured to transport air between the air inlet 1.1 and the annular air guide 5 through a first air duct, transport air between the annular air guide 5 and the cooking cavity 2 through a second air duct, and transport air between the cooking cavity 2 and the exhaust port 1.2 through a third air duct.

[0050] In this embodiment, the air inlet 1.1 is at one end of the first air duct, the air outlet 1.2 is at one end of the third air duct, and the other end of the first air duct, the second air duct and the other end of the third air duct are connected end to end in sequence. External air enters the first air duct of the air fryer from the air inlet 1.1, passes through the second air duct and the third air duct respectively, and is then discharged to the outside from the air outlet 1.2. The fan 7 can transport the air in the first air duct to the annular air guide 5, then transport the air in the annular air guide 5 to the cooking cavity 2, and finally transport the air in the cooking cavity 2 to the outside.

[0051] like Figure 6 The bladeless air fryer also includes a control component for controlling the bladeless air fryer, and the control component is arranged in the first air duct. The control component is an electronic component. The electronic component is arranged in the first air duct.

[0052] like Figure 1In one embodiment, the air inlet 1.1 (a1, a2) is arranged on the upper part of the shell 1. The upper part of the shell 1 here can be the top of the shell 1, or it can be the side wall of the shell 1 close to the top surface. Driven by the fan 7, the outside air is discharged to the outside through the first air duct, the annular air guide 5, the second air duct, the cooking cavity 2, the third air duct and the exhaust port 1.2. Since the upper structure of the air fryer may contain a large number of self-heating electronic components such as circuit boards and motors, the aforementioned self-heating electronic components may be considered to be arranged in the first air duct. When the cold air from the outside is sucked into the shell 1 of the fryer through the air inlet 1.1, the cold air will take away the heat of the electronic components in the first air duct, thereby realizing the heat dissipation function of the electronic components.

[0053] like Figure 2 In another embodiment, the air inlet 1.1 (b1, b2) is arranged at the lower part of the shell 1. The lower part of the shell 1 here can be the bottom of the shell 1, or it can be the side wall of the shell 1 close to the bottom surface. Driven by the fan 7, the outside air is discharged to the outside through the first air duct, the annular air guide 5, the second air duct, the cooking cavity 2, the third air duct and the exhaust port 1.2. Since the cooking cavity 2 is included in the middle and lower structure of the air fryer, and the cooking cavity 2 will generate a higher temperature when actually cooking food, a gap is provided between the shell 1 and the cooking cavity 2, and the first air duct is formed by this gap. When the outside cold air near the bottom of the fryer is sucked into the shell 1 of the fryer through the air inlet 1.1, the cold air will take away the heat around the cooking cavity 2 from bottom to top in the first air duct, thereby realizing the heat dissipation of the middle and lower shell 1.

[0054] like Figure 3 In another embodiment, the air inlet 1.1 (c1) is arranged between the upper and lower parts of the housing 1. The air inlet 1.1 here may be at the rear or side wall of the middle part of the housing 1. Driven by the fan 7, the outside air is respectively discharged to the outside through the first air duct, the annular air guide 5, the second air duct, the cooking cavity 2, the third air duct and the exhaust port 1.2. In this embodiment, the fan 7 is arranged in the middle and upper part of the fryer, and the distance between the fan 7 and the air inlet 1.1 is short, so the fan 7 can suck the cold air from the outside into the fryer in a shorter time.

[0055] The paths of air entering the bomber at different air inlets 1.1 are respectively Figure 1-3 In addition, since the cooking cavity 2 needs to be provided with a heating component 4 to heat the food in the cooking cavity 2, the fan 7 transports the hot air in the first air duct to the cooking cavity 2, that is, the setting of the first air duct also realizes heat exchange. While the heat is dissipated to the housing 1, the cold air is also preheated, so that the air can be quickly heated by the heating component 4 of the cooking cavity 2.

[0056] The annular air guide member 5 is in a hollow annular structure, an air passage is formed in the annular air guide member 5 , and an upper portion and / or a lower portion of the annular air guide member 5 is provided with an air guide hole 5 . 3 opening toward the cooking cavity 2 .

[0057] like Figure 4 In this embodiment, the annular air guide 5 is a circular tubular structure. The inner cavity of the annular air guide 5 forms an air passage for air flow, and the outer wall of the annular air guide 5 is provided with at least one air guide inlet 5.1 connected to the first air passage. The fan 7 conveys the air of the first air passage to the air guide inlet 5.1, and then conveys the air to the air passage of the inner cavity of the annular air guide 5. In this way, the blades of the fan 7 are prevented from being directly exposed above the cooking cavity 2, so that the blades are prevented from being attached to the oil smoke of the cooking cavity 2, thereby reducing the inconvenience of the user in cleaning the blades of the fan 7.

[0058] In one embodiment, the upper portion of the annular air guide 5 is provided with an air guide hole 5.3 opening toward the cooking cavity 2. The fan 7 conveys the air in the inner cavity of the annular air guide 5 to the cooking cavity 2. The air moves in a circle around the center of the annular air guide 5 in the inner cavity of the annular air guide 5 and is gradually discharged from the air guide hole 5.3 to the cooking cavity 2, so that the air discharged from the air guide hole 5.3 can be discharged to the cooking cavity 2 in a substantially swirling form, thereby forming a swirling airflow in the cooking cavity 2.

[0059] In another embodiment, the lower part of the annular air guide 5 is provided with an air guide hole 5.3 opening toward the cooking cavity 2. The air flow path is reduced so that the air in the inner cavity of the annular air guide 5 can be discharged to the cooking cavity 2 more directly.

[0060] A central through hole 5.2 is provided in the middle of the annular air guide 5, and the central through hole 5.2 is respectively connected to the first air duct and the cooking cavity 2. When the air guide hole 5.3 sprays air into the cooking cavity 2, the central through hole 5.2 will also form an airflow, and part of the air in the first air duct will flow to the cooking cavity 2 along the aforementioned airflow.

[0061] Furthermore, an exhaust grille can be provided at the air guide hole 5.3, and the ribs of the exhaust grille can be tilted and arranged perpendicular to the direction of the cooking cavity 2, so that the air in the inner cavity of the annular air guide 5 can be discharged to the cooking cavity 2 in a more orderly manner in a swirling manner.

[0062] like Figure 5 , outside air enters the first air duct through at least one air inlet 1.1.

[0063] In this embodiment, the air inlet 1.1 may be arranged only on the upper part of the housing 1, the lower part of the housing 1, or the housing 1 between the upper part and the lower part, or may be arranged on the upper part of the housing 1, the lower part of the housing 1, and the housing 1 between the upper part and the lower part in combination of two, or may be arranged on the upper part of the housing 1, the lower part of the housing 1, and the housing 1 between the upper part and the lower part at the same time. The purpose of such arrangement is to more effectively remove the heat from the housing 1 and the electronic components.

[0064] like Figure 5 The exhaust port 1.2 extends to the housing 1 and passes through the housing to communicate with the outside.

[0065] In this embodiment, the exhaust port 1.2 is arranged on the housing 1 and connected to the cooking cavity 2, so as to realize the connection between the outside and the cooking cavity 2. Since the fryer will generate oil smoke, steam and other substances when actually working, the cooking cavity 2 will form a high pressure under the action of the fan 7, and the oil smoke, steam and other substances after the food is heated will be discharged from the exhaust port 1.2 to the outside through the third air duct.

[0066] Furthermore, the exhaust port 1.2 can be arranged on the housing 1 on one side of the upper portion of the cooking cavity 2. Since the oil smoke and steam in the heated cooking cavity 2 tend to rise when the fryer is working, the exhaust port 1.2 is arranged on the upper portion of the cooking cavity 2 to facilitate the discharge of oil smoke, steam and other substances.

[0067] like Figure 6 The heat insulation assembly 6 includes a heat insulation board 6.1 arranged around and at the bottom of the cooking cavity 2, and a heat insulation reflective board 6.2 arranged on the top of the cooking cavity 2. The heat insulation board 6.1 and the heat insulation reflective board 6.2 enclose the cooking cavity 2.

[0068] In this embodiment, the surrounding wall and bottom of the cooking cavity 2 are provided with a heat insulation board 6.1 and a heat insulation reflective board 6.2 on the top. The heat insulation board 6.1 is used to reduce the heat in the cooking cavity 2 from being transferred to the housing 1, and the heat insulation reflective board 6.2 is used to reduce the heat in the cooking cavity 2 from being transferred to the other side of the heat insulation reflective board 6.2. The above two arrangements enable the cooking cavity 2 to maintain a certain cooking temperature.

[0069] like Figure 6 The heating assembly 4 is arranged below the air guide hole 5.3 of the annular air guide member 5.

[0070] In this embodiment, the heating component 4 can be a conventional electric heating device such as an electric heating wire, an electric heating tube, an infrared heating tube, etc. The fan 7 transports air from the air guide hole 5.3 of the annular air guide member 5 through the heating component 4 to the cooking cavity 2. The air discharged from the air guide hole 5.3 takes away the heat on the heating component 4 and then enters the cooking cavity 2, thereby heating the air and then transferring the heat to the food in the cooking cavity 2 to achieve the function of cooking food.

[0071] like Figure 7 The bladeless air fryer also includes an openable and closable door assembly 3, which includes a door body, a handle, and a frying pan. Through holes 3.1 are provided on the top and bottom of the door body, and a hollow cavity is provided in the door body. The hollow cavity is connected to the through hole 3.1 to form a door body heat dissipation duct.

[0072] In this embodiment, the fryer for placing food is placed in the cooking cavity 2. To have a more beautiful appearance, the outer wall of the door body is flush with the housing 1. The door body assembly 3 can be separated from the fryer body, so that the cooked food can be separated from the fryer body together with the door body assembly 3, so that the user can directly take out the food in the fryer.

[0073] The shell 1 is also provided with a hole matching the through hole on the top of the door body, so that the high-temperature air in the door body can enter the shell 1 through the fan 7 and finally be discharged after passing through the cooking cavity 2.

[0074] In one embodiment, the through hole 3.1 at the bottom of the door body is connected to the first air duct at the bottom of the shell 1. When the shell 1 is provided with an air inlet 1.1 at the bottom, the cold air can sequentially pass through the air inlet 1.1, the through hole 3.1 at the bottom of the door body, the through hole 3.1 at the top of the door body, the holes on the shell 1, etc., thereby taking away the heat in the door body and cooling the door body structure.

[0075] In another embodiment, the through hole 3.1 at the bottom of the door body is directly connected to the outside, and the cold air from the outside can directly enter the door body through the through hole 3.1 at the bottom of the door body, that is, the cold air sequentially passes through the through hole 3.1 at the bottom of the door body, the through hole 3.1 at the top of the door body, the holes on the shell 1, etc., and then takes away the heat in the door body, thereby cooling the door body structure.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bladeless air fryer, characterized in that: The air fryer comprises: An air guiding system, a shell, a cooking cavity arranged in the shell, a heating component for heating the cooking cavity, and a heat insulating component arranged between the cooking cavity and the shell, wherein the air guiding system comprises: An air inlet disposed at the upper portion and / or the lower portion of the housing and / or located between the upper portion and the lower portion; Exhaust port; Annular air guide; Fan; There is a gap between the shell and the heat insulation assembly to form a first air duct; Used to connect the air inlet with the annular air guide fluid under the action of the fan; a first air duct for fluidly connecting the air inlet and the annular air guide; a second air duct for fluidly connecting the annular air guide member and the cooking cavity; a third air duct for fluidly connecting the cooking cavity and the exhaust port; The fan is configured to: convey air between the air inlet and the annular air guide member through a first air duct, convey air between the annular air guide member and the cooking cavity through a second air duct, and convey air between the cooking cavity and the exhaust port through a third air duct; The annular air guide member is a circular tubular structure, an air passage is formed in the annular air guide member, and an upper part and / or a lower part of the annular air guide member is provided with an air guide hole opening toward the cooking cavity; The heat insulation assembly comprises heat insulation plates arranged around and at the bottom of the cooking cavity, and a heat insulation reflective plate arranged at the top of the cooking cavity. The heat insulation plates and the heat insulation reflective plate enclose the cooking cavity.

2. A bladeless air fryer according to claim 1, characterized in that: External air enters the first air duct through at least one of the air inlets.

3. The bladeless air fryer according to claim 1, characterized in that: The exhaust port extends to the shell and passes through the outer shell to communicate with the outside.

4. The bladeless air fryer according to claim 1, characterized in that: It also includes a control component for controlling the bladeless air fryer, and the control component is arranged in the first air duct.

5. The bladeless air fryer according to claim 1, characterized in that: The heating component is arranged below the air guide hole of the annular air guide member.

6. The bladeless air fryer according to claim 1, characterized in that: The utility model also comprises an openable and closable door body assembly, which comprises a door body, a handle and a frying pan.

7. A bladeless air fryer according to claim 6, characterized in that: The top and bottom of the door body are provided with through holes, and the door body has a hollow cavity, which is connected with the through holes to form a door body heat dissipation duct.

8. The bladeless air fryer according to claim 1, characterized in that: At least one air guide inlet communicating with the first air duct is provided on the outer side wall of the annular air guide member.

Images