Cooking device with secondary mixing exhaust structure

Abstract

A cooking device with a secondary mixing exhaust structure is characterized in that a first air outlet and a first air inlet are formed in an outer shell, a second air outlet and a second air inlet are formed in an inner shell, and a hot air outlet is formed in a reflecting cover; a first separation net is arranged at the end, close to the first air outlet, of the exhaust channel, a second separation net is arranged at the end, close to the second air outlet, of the exhaust channel, and the second separation net and the hot air outlet are arranged at intervals to form a first mixing space. The first separation net and the second separation net are also arranged at an interval to form a second mixing space; when a motor drives a first fan blade and a second fan blade to rotate, hot air in a reflecting cover can enter a first mixing space through a hot air outlet under the driving of the first fan blade, and external cold air can enter the first mixing space through a first air inlet and a second air inlet under the driving of the second fan blade; cold air and hot air are mixed for the first time in the first mixing space, then enter the second mixing space through the second separation net and are mixed for the second time, and the air mixed twice is finally discharged outwards through the first separation net.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking devices, in particular to a cooking device with a secondary mixing exhaust structure. BACKGROUND

[0002] An air fryer is a commonly used cooking device, which works on the principle of using high-speed circulating hot air to heat and cook food, and can achieve a similar fried taste without or with a small amount of oil. However, during the use of the air fryer, due to the evaporation of water caused by heating and the expansion of cold air caused by heating, part of the hot air in the cooking cavity needs to be discharged to the outside of the air fryer through the exhaust channel. For example, a Chinese utility model patent with publication number CN220988542U discloses an air fryer, which includes a top cover, a reflector and an inner pot. The top cover and the reflector form a cold air cavity for heat dissipation. The top cover is provided with an exhaust port. The top cover is formed with an air outlet cavity near the side of the exhaust port. The air outlet cavity is connected to the exhaust port and the cold air cavity. The reflector and the inner pot form a hot air cavity for cooking food. The reflector is provided with a hot air outlet. The hot air cavity is connected to the air outlet cavity through the hot air outlet. In this way, the hot air and the cold air first enter the air outlet cavity, mix and cool down, and then are discharged through the exhaust port. Although this prior art reduces the temperature of the discharged hot air by mixing cold and hot air, this simple mixing method has the following problems. Part of the hot air is directly discharged through the exhaust port without being cooled by the cold air. In addition, since the mixing distance is very short, the cold air and the hot air are not fully mixed. As a result, the temperature of the air discharged from different positions of the exhaust port differs greatly, which may cause local temperature rise. SUMMARY

[0003] In order to overcome at least one of the above problems existing in the exhaust structure of the air fryer in the prior art, the application provides a cooking device with a secondary mixing exhaust structure, which comprises a pot main body and a pot cover, the pot cover is movably connected to the pot main body, the pot cover comprises an outer shell, an inner shell, a reflecting cover, a heating body, a motor, a first fan blade and a second fan blade arranged in the outer shell, the heating body and the first fan blade are arranged in the reflecting cover, the second fan blade is arranged in the inner cavity between the inner shell and the reflecting cover, the motor is arranged in the outer cavity between the outer shell and the inner shell, the output shaft of the motor is connected to the first fan blade and the second fan blade through the inner shell and the reflecting cover, the first air outlet and the first air inlet are arranged on the outer shell, the second air outlet and the second air inlet are arranged on the inner shell, and the hot air outlet is arranged on the reflecting cover; the exhaust channel is further provided, and the two ends of the exhaust channel are connected to the first air outlet and the second air outlet respectively, the first separation net is arranged at one end of the exhaust channel close to the first air outlet, and the second separation net is arranged at one end of the exhaust channel close to the second air outlet, wherein the second separation net is arranged in the first mixing space with the hot air outlet, and the first separation net and the second separation net are also arranged in the second mixing space; when the motor drives the first fan blade and the second fan blade to rotate, the hot air in the reflecting cover can enter the first mixing space through the hot air outlet under the driving of the first fan blade, and the external cold air can enter the first mixing space through the first air inlet and the second air inlet under the driving of the second fan blade, the cold air and the hot air are mixed for the first time in the first mixing space, then enter the second mixing space through the second separation net and are mixed for the second time, and the air after two times of mixing is finally discharged outward through the first separation net.

[0004] Wherein, the pot main body is the base part of the cooking device, the pot main body comprises a main body shell and an inner container, the pot cover is movably connected to the pot main body, and the reflecting cover and the inner container form a cooking space.

[0005] Wherein, the heating body is a component arranged in the reflecting cover for heating the air in the cooking space, under the driving of the first fan blade, the hot air flows rapidly to form hot air to heat the food placed in the cooking space.

[0006] Wherein, the first air outlet is an opening arranged on the outer shell for letting the internal airflow flow outward; the second air outlet is an opening arranged on the inner shell for letting the internal airflow flow outward, since the outer shell and the inner shell are arranged in a spaced manner, the first air outlet and the second air outlet are arranged in a spaced manner, under the connection of the exhaust channel, the first air outlet and the second air outlet serve as the support structure of the exhaust channel.

[0007] The hot air outlet is an opening for discharging hot air in the cooking space. Since the inner shell and the reflecting cover are arranged in a spaced manner, the hot air outlet and the second air outlet are also arranged in a spaced manner. Generally, the air outlet area of the hot air outlet is smaller than that of the second air outlet. The hot air outlet is arranged at a middle part or a position below the middle part of the second air outlet. The axis direction of the hot air outlet is non-parallel to the axis direction of the second air outlet.

[0008] The exhaust passage is a wind guide member connected to the outer shell and the inner shell. The exhaust passage includes a tube body and a tube cover. The tube body is in a cylindrical shape and includes a side wall and a bottom wall. The side wall is connected to the first air outlet and the second air outlet. The second partition net is arranged on the bottom wall. The tube cover is detachably connected to the opening part of the tube body. The first partition net is arranged on the tube cover.

[0009] The first partition net and the second partition net are net structures arranged at two ends of the exhaust passage, respectively. The first partition net is provided with a plurality of first mesh holes allowing air to pass through. The second partition net is provided with a plurality of second mesh holes allowing air to pass through. The sum of the air passing areas of the second mesh holes is greater than the sum of the air passing areas of the first mesh holes. Further, the second partition net is provided with a plurality of second mesh holes of different sizes. The second mesh holes are arranged in descending order of air passing area from top to bottom. The second mesh holes are arranged in at least two columns. The mesh holes in adjacent two columns are arranged in a staggered manner. The second partition net is arranged on the side close to the hot air outlet. The second partition net blocks the flow path of cold air and hot air to allow part of the air to reflect or bypass. Part of the reflected cold air and hot air is mixed for the first time. The first partition net is arranged on the outer side to block the cold air and hot air that has not been mixed or has been mixed for the first time, so that more cold air and hot air are mixed.

[0010] According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present application are as follows: first, by setting the first and second separation nets, the channel for airflow circulation is divided into a first mixing space and a second mixing space, cold air and hot air can be mixed twice when flowing through the first and second mixing spaces, and the heat energy of the cold air absorption and the diffused hot air is fully utilized, so that the temperature of the air discharged from the first separation net can be effectively reduced, and the air temperature discharged from each position of the first separation net is basically consistent, solving the problem of local temperature rise; second, the mesh of the second separation net can not only reflect part of the hot air and cold air, but also preliminarily disperse or disturb the air, so that the fine cold air and hot air can be quickly mixed in the second mixing space, which not only helps to improve the mixing completeness of cold and hot air, but also improves the mixing efficiency and speed of cold and hot air.

[0011] Further technical solutions can also be that the first mesh is in a transverse strip shape, and the first mesh is arranged upwardly and outwardly from the inside.

[0012] Further technical solutions can also be that the first mesh is in a transverse strip shape, and the first mesh is arranged upwardly and outwardly from the inside.

[0013] Further technical solutions can also be that the first mesh is in a transverse strip shape, and the first mesh is arranged upwardly and outwardly from the inside.

[0014] Further technical solutions can also be that the first mesh is in a transverse strip shape, and the first mesh is arranged upwardly and outwardly from the inside.

[0015] Further technical solutions can also be that the first mesh is in a transverse strip shape, and the first mesh is arranged upwardly and outwardly from the inside.

[0016] Due to the above characteristics and advantages of the present application, it can be applied to a cooking device with a secondary mixing exhaust structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the axial side direction structure of the cooking device with a secondary mixing exhaust structure;

[0018] Figure 2 is an exploded structural schematic diagram of the cooking device with a secondary mixing exhaust structure;

[0019] Figure 3 is a sectional structural schematic diagram of the cooking device with a secondary mixing exhaust structure;

[0020] Figure 4 is Figure 3A partial enlarged view of the structure at M;

[0021] Figure 5 is a schematic view of the structure in the axial direction of the inner housing;

[0022] Figure 6 is a schematic view of the structure in the axial direction of the reflector;

[0023] Figure 7 is a schematic view of the structure in the axial direction of the exhaust passage;

[0024] Figure 8 is a schematic view of the structure in the axial direction of the exhaust passage. DETAILED DESCRIPTION

[0025] The structure of the cooking device with a secondary mixing exhaust structure according to the technical solution of the present application will be further described below in conjunction with the accompanying drawings. Except for explicitly described equivalent or alternative embodiments, the various embodiments disclosed below can be selectively applied or combined in one embodiment even if there is no direct functional connection or synergistic relationship.

[0026] As Figures 1-8As shown, the application provides a cooking device with a secondary mixing exhaust structure, which comprises a pot main body 1 and a pot cover 2, the pot cover 2 is movably covered on the pot main body 1, the pot cover 2 comprises an outer shell 3, an inner shell 4, a reflecting cover 5, a heating body 61, a motor 62, a first fan blade 63 and a second fan blade 64 arranged in the outer shell 3, wherein the heating body 61 and the first fan blade 63 are arranged in the reflecting cover 5, the second fan blade 64 is arranged in the inner shell cavity 40 between the inner shell 4 and the reflecting cover 5, the motor 62 is arranged in the outer shell cavity 30 between the outer shell 3 and the inner shell 4, the output shaft of the motor 62 is transmission connected with the first fan blade 63 and the second fan blade 64 through the inner shell 4 and the reflecting cover 5; the outer shell 3 is provided with a first air outlet 31 and a first air inlet 32, the inner shell 4 is provided with a second air outlet 41 and a second air inlet 42, and the reflecting cover 5 is provided with a hot air outlet 51; further comprising an exhaust channel 7, both ends of the exhaust channel 7 are connected with the first air outlet 31 and the second air outlet 41 respectively, the exhaust channel 7 is provided with a first separation net 71 at one end close to the first air outlet 31 and a second separation net 72 at one end close to the second air outlet 41, wherein the second separation net 72 is arranged in interval with the hot air outlet 51 to form a first mixing space 201, and the first separation net 71 and the second separation net 72 are also arranged in interval to form a second mixing space 202; when the motor 62 drives the first fan blade 63 and the second fan blade 64 to rotate, the hot air in the reflecting cover 5 can enter the first mixing space 201 through the hot air outlet 51 under the driving of the first fan blade 63, and the external cold air can enter the first mixing space 201 through the first air inlet 32 and the second air inlet 42 under the driving of the second fan blade 64, the cold air and the hot air are mixed for the first time in the first mixing space 201, then enter the second mixing space 202 through the second separation net 72 and are mixed for the second time, and the air after two times of mixing is finally discharged outward through the first separation net 71.

[0027] The pot main body 1 is the base part of the cooking device, which comprises a main body shell 11 and an inner container 12, in this embodiment, one end of the pot cover 2 is hinged on the pot main body 1 to perform opening and closing action, when the pot cover 2 is covered on the pot main body 1, the reflecting cover 5 and the inner container 12 form a cooking space, the heating body 61 is arranged in the reflecting cover 5 to heat the air in the cooking space, under the driving of the first fan blade 63, the hot air flows rapidly to form hot wind to heat the food placed in the cooking space.

[0028] Since the outer shell 3 and the inner shell 4 are arranged in a spaced manner, the first air outlet 31 and the second air outlet 41 are arranged in a spaced manner, and under the connection of the exhaust passage 7, the first air outlet 31 and the second air outlet 41 serve as the support structure of the exhaust passage 7. The hot air outlet 51 is an opening for the hot air in the cooking space to be discharged. Since the inner shell 4 and the reflector 5 are arranged in a spaced manner, the hot air outlet 51 and the second air outlet 41 are also arranged in a spaced manner. Generally, the air outlet area of the hot air outlet 51 is smaller than that of the second air outlet 41. The hot air outlet 51 is arranged at the middle or lower middle position of the second air outlet 41, and the axis direction of the hot air outlet 51 and the axis direction of the second air outlet 41 are arranged in a non-parallel manner. In this way, the hot air is blown to the second air outlet in an inclined manner, so that the hot air can directly intersect with the cold air, and the hot air reflected by the wall body around the second air outlet can also intersect with the cold air.

[0029] As shown in Figure 8 The exhaust passage 7 includes a pipe body 73 and a pipe cover 74. The pipe body 73 is in a cylindrical shape and includes a side wall 731 and a bottom wall 732. The side wall 731 connects the first air outlet 31 and the second air outlet 41. The second partition net 72 is arranged on the bottom wall 732. The pipe cover 74 is detachably connected to the opening part of the pipe body 73. The first partition net 71 is arranged on the pipe cover 74. The second partition net 72 is arranged on the bottom wall 732 close to the hot air outlet 51. The second partition net 72 blocks the flow path of the cold air and the hot air to make part of the air reflect or flow around to perform the first mixing. The first partition net 71 is arranged on the outside to block the cold air and the hot air that have not been mixed or have been mixed for the first time, so that more cold air and hot air are mixed. The advantages of this arrangement are that by arranging the first partition net 71 and the second partition net 72, the air flow passage is divided into a first mixing space 201 and a second mixing space 202. The cold air and the hot air can be mixed twice when flowing through the first mixing space 201 and the second mixing space 202, so that the cold air can absorb and diffuse the heat energy of the hot air. In this way, the temperature of the air discharged from the first partition net 71 can be effectively reduced, and the temperature of the air discharged from each position of the first partition net 71 can be basically consistent, so that the problem of local temperature rise is solved

[0030] The first and second partitioning nets 71 and 72 are mesh structures arranged at both ends of the exhaust passage 7, the first partitioning net 71 is provided with a plurality of first mesh holes 711 allowing air to pass through, and the second partitioning net 72 is provided with a plurality of second mesh holes 721 allowing air to pass through. In order to allow cold and hot air to be gradually mixed, the sum of the air passing areas of the second mesh holes 721 is greater than the sum of the air passing areas of the first mesh holes 711. Further, the second partitioning net 72 is provided with a plurality of second mesh holes 721 of different sizes, the second mesh holes 721 are arranged from top to bottom in descending order of air passing area, and the second mesh holes 721 are arranged in at least two columns, and the mesh holes in adjacent two columns are arranged in an up-down staggered manner. In this way, the cold and hot air divided into strands by the mesh holes of the second partitioning net 72 can be quickly mixed after the second mixing space 202, which not only helps to improve the mixing completeness of cold and hot air, but also improves the mixing efficiency and speed of cold and hot air.

[0031] Further technical solutions can also be that the first mesh holes 711 are in a transverse strip shape, and the first mesh holes 711 are arranged obliquely upward from inside to outside. In this way, the hot air output from the first mesh holes 711 will also be blown obliquely upward, and the cold air outside the product will be carried, especially the cold air below the first mesh holes 711 will flow upward along the outer shell 3 to the first mesh holes 711, which helps to reduce the surface temperature of the pipe cover 74.

[0032] Further technical solutions can also be that the first mesh holes 711 are in a transverse strip shape, and the first mesh holes 711 are arranged obliquely upward from inside to outside. In this way, the hot air output from the first mesh holes 711 will also be blown obliquely upward, and the cold air outside the product will be carried, especially the cold air below the first mesh holes 711 will flow upward along the outer shell 3 to the first mesh holes 711, which helps to reduce the surface temperature of the pipe cover 74.

[0033] Further technical solutions can also be that the first mesh holes 711 are in a transverse strip shape, and the first mesh holes 711 are arranged obliquely upward from inside to outside. In this way, the hot air output from the first mesh holes 711 will also be blown obliquely upward, and the cold air outside the product will be carried, especially the cold air below the first mesh holes 711 will flow upward along the outer shell 3 to the first mesh holes 711, which helps to reduce the surface temperature of the pipe cover 74.

[0034] Further technical solutions can also be that the first mesh holes 711 are in a transverse strip shape, and the first mesh holes 711 are arranged obliquely upward from inside to outside. In this way, the hot air output from the first mesh holes 711 will also be blown obliquely upward, and the cold air outside the product will be carried, especially the cold air below the first mesh holes 711 will flow upward along the outer shell 3 to the first mesh holes 711, which helps to reduce the surface temperature of the pipe cover 74.

Claims

1. A cooking device with a secondary mixing exhaust structure, comprising a pot main body and a pot cover, the pot cover being movably covered on the pot main body, the pot cover comprising an outer shell, an inner shell, a reflecting cover, a heating body, a motor, a first fan blade and a second fan blade arranged in the outer shell, wherein, The heating body and the first fan blade are arranged in the reflecting cover, the second fan blade is arranged in the inner shell cavity between the inner shell and the reflecting cover, the motor is arranged in the outer shell cavity between the outer shell and the inner shell, and the output shaft of the motor is in transmission connection with the first fan blade and the second fan blade through the inner shell and the reflecting cover. The outer shell is provided with a first air outlet and a first air inlet, the inner shell is provided with a second air outlet and a second air inlet, and the reflecting cover is provided with a hot air outlet.

2. The cooking apparatus with a secondary mixing exhaust structure according to claim 1, characterized in that, When the motor drives the first fan blade and the second fan blade to rotate, hot air in the reflecting cover can enter the first mixing space through the hot air outlet under the driving of the first fan blade, and external cold air can enter the first mixing space through the first air inlet and the second air inlet under the driving of the second fan blade.

3. The cooking apparatus with a secondary mixing exhaust structure according to claim 1, characterized in that, The first separation net is provided with a plurality of first mesh holes capable of allowing air to pass through, and the second separation net is provided with a plurality of second mesh holes capable of allowing air to pass through.

4. The cooking apparatus with a secondary mixing exhaust structure according to claim 3, characterized in that, The second separation net is provided with a plurality of second mesh holes of different sizes, and the second mesh holes are arranged from top to bottom in descending order of air passing area.

5. The cooking apparatus with a secondary mixing exhaust structure according to claim 2, wherein The second mesh holes are arranged in at least two columns, and the mesh holes in adjacent two columns are arranged in an up-down staggered manner.

6. The cooking apparatus with a secondary mixing exhaust structure according to any one of claims 1 to 5, characterized in that, The first mesh holes are in a horizontal strip shape, and the first mesh holes are arranged in an inclined upward manner from inside to outside.

7. The cooking apparatus with a secondary mixing exhaust structure according to claim 6, wherein The exhaust channel comprises a pipe body and a pipe cover, the pipe body is in a cylindrical shape and comprises a side wall and a bottom wall, the side wall is connected to the first air outlet and the second air outlet, the second separation net is arranged on the bottom wall, the pipe cover is detachably connected to the opening portion of the pipe body, and the first separation net is arranged on the pipe cover.

8. The cooking apparatus according to any one of claims 1 to 5, wherein Further comprising an oil absorption layer, the oil absorption layer is arranged in the second mixing space and is arranged in close contact with the side wall.

9. The cooking apparatus with a secondary mixing exhaust structure according to claim 6, wherein Further comprising a dust separation net, the dust separation net is arranged at the first air inlet or the second air inlet.

10. The cooking apparatus with a secondary mixing exhaust structure according to claim 9, wherein Further comprising an outer baffle, the outer baffle is arranged above the first air outlet and extends in the left-right direction. The two ends of the outer baffle are provided with side baffles extending downward, and the side baffles and the outer baffle are arranged in an inverted U shape.

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