A double-layer air fryer

Abstract

The utility model discloses a double -deck air fryer, including the casing and two fryer assemblies, and the casing is separated with the cooking cavity in advance and the heat dissipation cavity behind through the first baffle, is equipped with two heating cavities of up and down in the cooking cavity, and one fryer assembly is set up in one heating cavity and is pulled, and the heat dissipation cavity is equipped with centrifugal heat dissipation device respectively in correspondence with two heating cavities, and the first baffle is equipped with the first heat dissipation hole of intercommunication heating cavity, and the heating cavity top is equipped with the reflector and heating device, and heating device is placed in the recess of reflector bottom surface, and the clearance is left between reflector top surface and heating cavity top, and the fryer assembly is set up in the corresponding heating cavity and is pulled, and the air inlet clearance is left between the front top of fryer assembly and the front top of corresponding heating cavity, and the reflector side surface blocks the first heat dissipation hole, and the centrifugal heat dissipation device draws away the airflow in the clearance through the first heat dissipation hole, and the outside air enters the clearance through the air inlet clearance. The utility model realizes the effect of no blade. Meanwhile, the overall structure is more compact.

Description

Technical Field

[0001] This utility model relates to the field of air fryer technology, specifically to a double-layer air fryer. Background Technology

[0002] Current air fryers have a heating element and hot air fan inside the cooking chamber. The rotating hot air fan circulates the heat from the heating element within the cooking chamber with the airflow. The hot air fan is usually exposed or covered by a mesh screen, but it is still visible from the fryer inlet. Because air fryers need to run for extended periods, the motor driving the hot air fan is significantly affected by heat. Therefore, air fryers also have a cooling fan to dissipate heat from the motor. To reduce costs, the hot and cooling fan are separate components, but both are mounted on the same motor shaft. Furthermore, the hot and cooling fan need to be housed in separate chambers. This design limits the size of the air fryer due to the hot and cooling fan, and the motor. For double-layer air fryers, the two sets of hot and cooling fan, and motor result in a taller overall unit and a larger size. Utility Model Content

[0003] The purpose of this invention is to provide a double-layer air fryer with a bladeless design.

[0004] The purpose of this utility model is achieved as follows.

[0005] A double-layer air fryer includes a shell and two fryer assemblies. The shell is divided into a front cooking chamber and a rear heat dissipation chamber by a first partition. The cooking chamber has two heating chambers, one upper and one lower. One fryer assembly is pulled out and installed in one of the heating chambers. The heat dissipation chamber has centrifugal heat dissipation devices corresponding to the two heating chambers. The first partition has a first heat dissipation hole connecting the heating chambers. The top of the heating chamber has a reflector and a heating device. The heating device is placed in a recess on the bottom surface of the reflector. A gap is left between the top surface of the reflector and the top of the heating chamber. The fryer assembly is pulled out and installed in the corresponding heating chamber. An air inlet gap is left between the top front of the fryer assembly and the top front of the corresponding heating chamber. The side of the reflector blocks the first heat dissipation hole. The centrifugal heat dissipation device draws away the airflow in the gap through the first heat dissipation hole. Outside air enters the gap through the air inlet gap.

[0006] Furthermore, each centrifugal cooling device includes a mounting cover, a motor, and a centrifugal impeller. The mounting cover has a mounting cavity and is located on the back of the first partition. The motor is fixed to the side of the mounting cover away from the cooking cavity, and the motor shaft extends into the mounting cavity to drive the centrifugal impeller to rotate within the mounting cavity. An exhaust duct extending rearward from the housing is provided on one side of the mounting cover, and the inner end of the exhaust duct connects to one side of the mounting cavity. A second cooling outlet is provided on the side of the mounting cover facing the motor. The second cooling outlet and the first cooling hole connect to the safety cavity from the front and rear sides of the mounting cavity. The centrifugal impeller includes a baffle plate and fan blades located on the front and rear sides of the baffle plate. The baffle plate is vertically positioned between the second cooling outlet and the first cooling hole. The centrifugal impeller achieves heat dissipation for both the cooking cavity and the cooling cavity, reducing the number of parts and the required installation volume, which is beneficial for reducing the overall size and making the overall structure more compact.

[0007] Furthermore, the exhaust duct includes a front duct and a rear duct. The front duct is arranged in an arc shape along the radial direction of the rotating shaft. The front end of the front duct is connected to the bottom side of the mounting cavity. The length of the rear duct is parallel to the rotating shaft. The front end of the rear duct is connected to the top of the rear end of the front duct.

[0008] Furthermore, the exhaust duct includes an exhaust hood, which is fixed to the rear end of the rear air duct and is connected to it. The exhaust hood extends beyond the rear of the housing, and has air guide holes on its upper and lower opposing surfaces. The rear air duct is angled upwards from its front end to its rear end. The exhaust duct utilizes the rising of hot air to improve heat dissipation. The air guide holes prevent external liquids from easily entering the exhaust duct.

[0009] Furthermore, the mounting cover has a shaft hole and several hollow holes, which connect to the mounting cavity to form the second heat dissipation outlet. The mounting cavity is open on the side away from the motor.

[0010] Furthermore, the first partition has a heat insulation cavity at the rear of each heating cavity, and the first partition has a first through hole that connects the heat dissipation cavity and the heat insulation cavity. The bottom of the shell has a first air inlet that connects to the heat dissipation cavity. Airflow in the heat dissipation cavity enters the heat insulation cavity to facilitate heat dissipation in the heat insulation cavity.

[0011] Furthermore, the first partition plate has a second through hole connecting to the mounting cavity, the first heat dissipation hole is aligned with the center of the centrifugal impeller, and the top of the heat insulation cavity has an independent heat dissipation channel. The mounting cavity, the first heat dissipation hole, the heat dissipation channel, and the heating cavity are connected. The second through hole is located around the first heat dissipation hole and connects to the heat insulation cavity. The centrifugal heat dissipation device dissipates heat for both the heat insulation cavity and the cooking cavity.

[0012] Furthermore, the first partition is provided with a third through hole that connects to the mounting cavity. The two centrifugal heat dissipation devices are arranged vertically, and the mounting cavity of the lower centrifugal heat dissipation device is connected to the upper heat insulation cavity through the third through hole.

[0013] Furthermore, a second partition is provided inside the housing, separating the cooking cavity and the heat dissipation cavity at the top to form an electrical cavity. A second air inlet communicating with the electrical cavity is provided at the top edge of the housing. The second partition has clearance notches corresponding to the first partition and the centrifugal heat dissipation device located above it. The tops of the first partition and the centrifugal heat dissipation device extend into the electrical cavity. The mounting cavity of the centrifugal heat dissipation device located above it communicates with the electrical cavity through a third through hole. The centrifugal heat dissipation device also serves to dissipate heat from the electrical cavity.

[0014] Furthermore, two side-by-side limiting blocks are provided on the back of the housing, with the length of the limiting blocks exceeding the length of the exhaust duct extending out of the housing. The limiting blocks prevent the exhaust hood from colliding with the wall.

[0015] This utility model's centrifugal cooling device is located at the rear of the cooking chamber, and the first heat dissipation hole is blocked by a reflector, so that the user cannot see the blades of the centrifugal cooling device from the cooking chamber, achieving a bladeless effect. At the same time, the rear-positioning of the centrifugal cooling device allows for a lower housing height. The centrifugal cooling device dissipates heat from both the heating and cooling chambers using only a single centrifugal impeller, resulting in a more compact overall structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 1.

[0018] Figure 3 This is a side view of Embodiment 1.

[0019] Figure 4 This is a cross-sectional structural diagram of Example 1 (arrows indicate the direction of airflow).

[0020] Figure 5 This is a schematic diagram of the exploded structure of Example 1.

[0021] Figure 6 This is a schematic diagram of the centrifugal heat dissipation device and the first partition plate installation structure in Embodiment 1.

[0022] Figure 7 for Figure 6 A schematic diagram of its decomposed structure.

[0023] Figure 8 This is a cross-sectional structural diagram of Example 1.

[0024] Figure 9 This is a cross-sectional structural diagram of Example 1. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1, see Figure 1-9 As shown, a double-layer air fryer includes a shell 1, two fryer assemblies 2 and two centrifugal cooling devices 6.

[0027] The housing 1 contains a first partition 3 and a second partition 4. The first partition 3 is vertically arranged, dividing the inner cavity of the housing 1 into a cooking cavity 10 at the front and a heat dissipation cavity 12 at the rear. The second partition 4 is horizontally arranged on top of the first partition 3, separating an electrical cavity 13 above the cooking cavity 10 and the heat dissipation cavity 12. The second partition 4 has a clearance notch 41 corresponding to the top of the heat dissipation cavity 12. The bottom of the housing 1 has a first air inlet 18 connecting to the heat dissipation cavity 12. The top edge of the housing 1 has a second air inlet 19 connecting to the electrical cavity 13. A control device is installed inside the electrical cavity 13. The first partition 3 has a first heat dissipation hole 31 connecting to the heating cavity 11, and the reflector 14 sideways blocks the first heat dissipation hole 31. The first partition 3 has a heat insulation cavity 30 corresponding to the rear of each heating cavity 11, and the first partition 3 has a first through hole 32 connecting the heat dissipation cavity 12 and the heat insulation cavity 30. The top of the heat insulation cavity 30 has an independent heat dissipation channel 35, and the first heat dissipation hole 31 connects to the heating cavity 11 through the heat dissipation channel 35.

[0028] The cooking cavity 10 has two independent heating chambers 11, one above the other. Each heating chamber 11 has a reflector 14 and a heating element 15 on its top. The heating element 15 is placed in a recess on the bottom surface of the reflector 14. A gap 16 is left between the top surface of the reflector 14 and the top of the heating chamber 11. The fryer assembly 2 is pulled out and installed in the corresponding heating chamber 11. An air inlet gap 17 is left between the top front of the fryer assembly 2 and the top front of the corresponding heating chamber 11.

[0029] Two centrifugal heat dissipation devices 6 are arranged vertically within the heat dissipation cavity 12, with one centrifugal heat dissipation device 6 corresponding to one heating cavity 11. Each centrifugal heat dissipation device 6 includes a mounting cover 7, a motor 60, and a centrifugal impeller 61. The mounting cover 7 has a mounting cavity 70 and is located on the back of the first partition 3. The motor 60 is fixed to the side of the mounting cover 7 away from the cooking cavity 10, and the shaft of the motor 60 extends into the mounting cavity 70 to drive the centrifugal impeller 61 to rotate within the mounting cavity 70. One side of the mounting cover 7 has an exhaust duct extending rearward out of the housing 1, and the inner end of the exhaust duct connects to one side of the mounting cavity 70. The mounting cover 7 has a second heat dissipation outlet 71 facing the motor 60. The second heat dissipation outlet 71 and the first heat dissipation hole 31 connect to the safety cavity from the front and rear sides of the mounting cavity 70. The centrifugal impeller 61 includes a wind baffle plate 62 and fan blades 63 located on the front and rear sides of the wind baffle plate 62. The wind baffle plate 62 is vertically positioned between the second heat dissipation outlet 71 and the first heat dissipation hole 31.

[0030] The exhaust duct includes a front duct 72, a rear duct 73, and an exhaust hood 8. The front duct 72 is radially arc-shaped along the rotating shaft, and its front end is connected to the bottom side of the mounting cavity 70. The rear duct 73 is parallel to the rotating shaft in length, and its front end is connected to the top of the rear end of the front duct 72. The exhaust hood 8 is fixed to the rear end of the rear duct 73, and is connected to the rear duct 73. The exhaust hood 8 extends out of the rear part of the housing 1, and has air guide holes 81 on its upper and lower opposing surfaces. The rear duct 73 is inclined upwards from its front end to its rear end.

[0031] In this embodiment, the front air duct 72, the rear air duct 73, and the mounting cover 7 are integrally formed. The front air duct 72 and the rear air duct 73 are open towards the first partition 3, and the top surface of the rear air duct 73 is open and sealed by the cover plate 74. The mounting cover 7 is provided with a shaft hole 710 and several hollow holes 711. The shaft hole 710 and several hollow holes 711 are connected to the mounting cavity 70 to form the second heat dissipation outlet 71. The mounting cavity 70 is open on the side away from the motor 60. The mounting cover 7 is fixed to the back of the first partition 3. The open sides of the front air duct 72, the rear air duct 73, and the mounting cavity 70 abut against the first partition 3. The mounting cavity 70 is aligned and connected to the first heat dissipation hole 31, that is, the mounting cavity 70, the first heat dissipation hole 31, the heat dissipation channel 35, and the heating cavity 11 are connected. The back of the housing 1 is provided with two limiting blocks 9 arranged side by side. The length of the limiting blocks 9 is greater than the length of the exhaust duct extending out of the housing 1.

[0032] The first partition 3 has a second through hole 33 and a third through hole 34 connecting to the mounting cavity 70. The first heat dissipation hole 31 is aligned with the center of the centrifugal impeller 61. The second through hole 33 and the third through hole 34 are both located around the first heat dissipation hole 31. Both the third through hole 34 and the second through hole 33 are arc-shaped holes and are symmetrically arranged vertically around the center of the first heat dissipation hole 31. The second through hole 33 connects to the heat insulation cavity 30. The mounting cavity 70 of the lower centrifugal heat dissipation device 6 is connected to the upper heat insulation cavity 30 through the third through hole 34. The tops of the first partition 3 and the upper centrifugal heat dissipation device 6 extend into the electrical cavity 13, and the mounting cavity 70 of the upper centrifugal heat dissipation device 6 is connected to the electrical cavity 13 through the third through hole 34.

[0033] The centrifugal cooling device 6 draws airflow from the gap 16 through the first heat dissipation hole 31, while outside air enters the gap 16 through the air inlet gap 17. Specifically, the motor 60 drives the centrifugal impeller 61 to rotate, causing the airflow in the mounting cavity 70 to exit through the front air duct 72 and the rear air duct 73 to the exhaust hood 8. The negative pressure within the mounting cavity 70 creates a heat dissipation channel formed by the first heat dissipation hole 31, the heat dissipation channel 35, the gap 16, and the air inlet gap 17. This channel passes through the top surface of the reflector 14, preventing heat from the heating device 15 from being conducted upwards, carrying away the moisture generated inside the fryer assembly 2, and creating a flowing airflow within the fryer assembly 2. The rising hot airflow exits through the top air guide hole 81 of the exhaust hood 8, while outside air enters through the bottom air guide hole 81 of the exhaust hood 8, improving the exhaust cooling effect of the exhaust hood 8.

[0034] Simultaneously, the negative pressure within the mounting cavity 70 creates a heat dissipation channel between the second heat dissipation outlet 71, the heat dissipation cavity 12, and the first air inlet 18. The negative pressure within the mounting cavity 70 also creates a heat dissipation channel between the second through hole 33, the heat insulation cavity 30, the first through hole 32, the heat dissipation cavity 12, and the second air inlet 19. These two heat dissipation channels remove heat from both sides of the mounting cover 7, the motor 60, and the front and rear air ducts 72 and 73. Furthermore, the upper centrifugal cooling device 6, through the negative pressure within the mounting cavity 70, creates a heat dissipation channel between the corresponding third through hole 34, the electrical cavity 13, and the second air inlet 19, which dissipates heat from the control device. The lower centrifugal cooling device 6, through the negative pressure within the mounting cavity 70, dissipates heat from the corresponding third through hole 34 to the upper heat insulation cavity 30, further reducing the impact of heat on the electrical cavity 13.

[0035] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0036] In this utility model, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0037] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0038] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. A double-layer air fryer, comprising a shell (1) and two fryer assemblies (2), wherein the shell (1) is separated by a first partition (3) into a front cooking chamber (10) and a rear heat dissipation chamber (12), wherein the cooking chamber (10) is provided with two heating chambers (11) at the top and bottom, and one fryer assembly (2) is retracted and disposed within one heating chamber (11), characterized in that, Centrifugal heat dissipation devices (6) are provided in the heat dissipation cavity (12) corresponding to the two heating cavities (11). The first partition (3) is provided with a first heat dissipation hole (31) connecting the heating cavity (11). A reflector (14) and a heating device (15) are provided on the top of the heating cavity (11). The heating device (15) is placed in the recess on the bottom surface of the reflector (14). A gap (16) is left between the top surface of the reflector (14) and the top of the heating cavity (11). The fryer assembly (2) is pulled out and placed in the corresponding heating cavity (11). An air inlet gap (17) is left between the top front of the fryer assembly (2) and the top front of the corresponding heating cavity (11). The side of the reflector (14) blocks the first heat dissipation hole (31). The heat dissipation device draws away the airflow in the gap (16) through the first heat dissipation hole (31). Outside air enters the gap (16) through the air inlet gap (17).

2. The double-layer air fryer according to claim 1, characterized in that, Each centrifugal cooling device (6) includes a mounting cover (7), a motor (60), and a centrifugal impeller (61). The mounting cover (7) has a mounting cavity (70) and is located on the back of the first partition (3). The motor (60) is fixed on the side of the mounting cover (7) away from the cooking cavity (10). The shaft of the motor (60) extends into the mounting cavity (70) to drive the centrifugal impeller (61) to rotate in the mounting cavity (70). A drain is provided on one side of the mounting cover (7) that extends rearward out of the housing (1). The air duct and the exhaust duct are connected to one side of the mounting cavity (70). The mounting cover (7) facing the motor (60) is provided with a second heat dissipation outlet (71). The second heat dissipation outlet (71) and the first heat dissipation hole (31) are connected to the safety cavity from the front and rear sides of the mounting cavity (70). The centrifugal impeller (61) includes a wind baffle plate (62) and fan blades (63) on the front and rear sides of the wind baffle plate (62). The wind baffle plate (62) is vertically placed between the second heat dissipation outlet (71) and the first heat dissipation hole (31).

3. The double-layer air fryer according to claim 2, characterized in that, The exhaust duct includes a front duct (72) and a rear duct (73). The front duct (72) is arranged in an arc shape along the radial direction of the rotating shaft. The front end of the front duct (72) is connected to the bottom side of the mounting cavity (70). The length of the rear duct (73) is parallel to the rotating shaft. The front end of the rear duct (73) is connected to the top of the rear end of the front duct (72).

4. The double-layer air fryer according to claim 3, characterized in that, the exhaust... The air duct includes an exhaust hood (8), which is fixed to the rear end of the rear air duct (73). The exhaust hood (8) and the rear air duct (73) are connected. The exhaust hood (8) extends out of the rear part of the housing (1). The exhaust hood (8) has air guide holes (81) on the upper and lower opposite surfaces of the housing (1). The front end of the rear air duct (73) to the rear end of the rear air duct (73) is inclined upward.

5. The double-layer air fryer according to claim 2, characterized in that, The mounting cover (7) is provided with a shaft hole (710) and several hollow holes (711). The shaft hole (710) and several hollow holes (711) are connected to the mounting cavity (70) to form the second heat dissipation outlet (71). The mounting cavity (70) is open on the side away from the motor (60).

6. The double-layer air fryer according to claim 1, characterized in that, The first partition (3) is provided with a heat insulation cavity (30) at the rear of each heating cavity (11). The first partition (3) is provided with a first through hole (32), which connects the heat dissipation cavity (12) and the heat insulation cavity (30). The bottom of the shell (1) is provided with a first air inlet (18) that connects to the heat dissipation cavity (12).

7. The double-layer air fryer according to claim 6, characterized in that, The first partition (3) is provided with a second through hole (33) that connects to the mounting cavity (70), the first heat dissipation hole (31) is aligned with the center of the centrifugal impeller (61), the top of the heat insulation cavity (30) is provided with an independent heat dissipation channel (35), the mounting cavity (70), the first heat dissipation hole (31), the heat dissipation channel (35) and the heating cavity (11) are connected, the second through hole (33) is provided around the first heat dissipation hole (31), and the second through hole (33) connects to the heat insulation cavity (30).

8. The double-layer air fryer according to claim 7, characterized in that, The first partition (3) is provided with a third through hole (34) that connects to the mounting cavity (70). The two centrifugal heat dissipation devices (6) are arranged vertically. The mounting cavity (70) of the lower centrifugal heat dissipation device (6) is connected to the upper heat insulation cavity (30) through the third through hole (34).

9. The double-layer air fryer according to claim 8, characterized in that, The housing (1) is provided with a second partition (4), which separates the cooking cavity (10) and the heat dissipation cavity (12) into an electrical cavity (13). The top edge of the housing (1) is provided with a second air inlet (19) that connects to the electrical cavity (13). The second partition (4) is provided with a clearance notch (41) corresponding to the first partition (3) and the centrifugal heat dissipation device (6) located above. The top of the first partition (3) and the centrifugal heat dissipation device (6) located above extends into the electrical cavity (13). The mounting cavity (70) of the centrifugal heat dissipation device (6) located above is connected to the electrical cavity (13) through a third through hole (34).

10. The double-layer air fryer according to claim 1, characterized in that, The back of the housing (1) is provided with two side-by-side limiting blocks (9), the length of which is greater than the length of the exhaust duct extending out of the housing (1).

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