Double-layer air fryer

By designing independent hot air circulation components and air guiding structures in the double-layer air fryer, the problem of uneven hot air supply in the frying basket is solved, achieving uniform heating and efficient cooking of food.

CN223787529UActive Publication Date: 2026-01-13NINGBO DINGYI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202520419264.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-13
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

In existing double-layer air fryers, it is difficult for the frying baskets located on different layers to receive a uniform supply of hot air at the same time, resulting in uneven heating of the food.

Method used

It adopts a double-layer air fryer design, including two independent cooking chambers. Each chamber is equipped with a set of hot air circulation components. Through the cooperation of drive motor, first fan, second fan and heating element, the hot air path is optimized by the air guide plate and air guide components, so that the hot air is evenly distributed in the frying basket.

Benefits of technology

It improves the uniformity of food heating and cooking speed, enhances the hot air circulation capability, ensures that food is heated evenly, and improves heating efficiency and cooking quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a double-layer air fryer, which belongs to the field of kitchen appliances, and comprises a fryer main body, two frying baskets arranged in the fryer main body and a hot air circulation assembly arranged on the fryer main body, the hot air circulation assembly comprises a driving motor, a first fan arranged on an output shaft of the driving motor, a second fan arranged on the side, facing the frying basket, of the first fan and a heating piece arranged between the second fan and the frying basket. An air inlet is formed in one side, opposite to the frying basket, of the hot air circulation assembly of the frying pan main body, and a ventilation opening is formed in one side, facing the hot air circulation assembly, of the frying basket; the fryer body is further provided with a blocking plate between the first fan and the second fan, the top of the blocking plate is connected with an air guide top plate which extends towards the frying basket and is located on the top of the frying basket, and an air guide assembly is arranged on the bottom face of the air guide part. The device has the effect of improving the heating uniformity of food.
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Description

Technical Field

[0001] This application relates to the field of kitchen appliances, and in particular to a double-layer air fryer. Background Technology

[0002] An air fryer is a cooking appliance that uses rapidly circulating hot air to heat and bake food.

[0003] An air fryer mainly consists of a fryer body and frying baskets arranged inside the fryer body. The fryer body has cooking chambers for arranging the frying baskets. In order to improve the flexibility of air fryers, air fryers with two or even more cooking chambers have appeared on the market. However, the problem that comes with this is that the frying baskets located on different levels often cannot receive a uniform supply of hot air at the same time, which makes it difficult for some food to be heated evenly.

[0004] In response to the aforementioned technologies, the inventor provides a new double-layer air fryer. Utility Model Content

[0005] To improve the evenness of food heating, this application provides a double-layer air fryer.

[0006] The double-layer air fryer provided in this application adopts the following technical solution:

[0007] A double-layer air fryer includes an air fryer body, two frying baskets arranged inside the air fryer body, and a hot air circulation assembly installed in the air fryer body. The hot air circulation assembly includes a drive motor, a first fan arranged on the output shaft of the drive motor, a second fan arranged on the side of the first fan facing the frying baskets, and a heating element arranged between the second fan and the frying baskets. The air fryer body has an air inlet on the side of the hot air circulation assembly facing away from the frying baskets, and the frying baskets have vents on the side facing the hot air circulation assembly. The air fryer body also has a baffle plate between the first fan and the second fan. The top of the baffle plate is connected to an air guide plate extending towards the frying baskets and located at the top of the frying baskets, and the bottom surface of the air guide plate is provided with an air guide assembly.

[0008] By adopting the above technical solution, during the operation of the air fryer, the first fan is driven by the drive motor to rotate, thereby transporting the air from the outer cavity of the air fryer body to the inner cavity of the air fryer body. Then, the air is heated by the cooperation between the second fan and the heating element and transported to the cooking chamber. The air guide plate and air guide assembly are set so that some of the air located on the top surface of the cooking chamber is blocked and transported downwards, so that the food in the frying basket can be heated evenly. The vent on the side of the frying basket facing the hot air circulation assembly allows the hot air in the frying basket to be transported out of the frying basket for circulation again, thereby accelerating the heating speed of the food.

[0009] Optionally, the second fan is configured as a centrifugal fan, and the top of the baffle plate has a guide portion that curves toward the frying basket, and the guide portion is provided with a guide plate for guiding hot air into the inner cavity of the frying basket. The guide plate is arranged obliquely in the vertical direction of the baffle plate.

[0010] By adopting the above technical solution, the centrifugal fan design of the second fan effectively improves the flow efficiency of hot air and enhances the hot air circulation capacity, thereby improving the heating uniformity and cooking speed of food. The baffle plate on the baffle plate can further optimize the hot airflow path, allowing the hot air to enter the inner cavity of the frying basket more concentratedly, thus contributing to the even heating of the food.

[0011] Optionally, the air guiding assembly includes a first air guiding plate group arranged in a trumpet shape on the bottom surface of the air guiding top plate, a second air guiding plate group arranged parallel to the barrier plate, and a third air guiding plate assembly arranged obliquely on the second air guiding plate group, wherein the first air guiding plate group and the third air guiding plate assembly are arranged on both sides of the air guiding plate.

[0012] By adopting the above technical solution, the specific structure of the air guide structure is disclosed. The first air guide plate group and the third air guide plate group are arranged on both sides of the guide plate, so that after the hot air is heated by the heating element, it can be promoted by the second fan to flow in the body of the fryer. When the hot air diffuses to the top surface, it is first guided by the guide plate to the first air guide plate group and the third air guide plate group. Then, the second air guide plate group is set so that some of the hot air is blocked and diffuses downward, so that the hot air continuously accumulates in the frying basket, thereby heating the food in the frying basket, which helps to improve the heating efficiency and heating uniformity of the food.

[0013] Optionally, the bottom surface of the air guide assembly is higher than the top surface of the frying basket.

[0014] By adopting the above technical solution, the setting of the bottom surface of the air guide structure being higher than the top surface of the frying basket helps to reduce the probability of the air guide structure interfering with the placement of the frying basket inside the fryer body.

[0015] Optionally, the fryer body includes a fryer back plate, the air inlet penetrates the inner and outer chambers of the fryer body and is arranged on the fryer back plate, the opening of the air inlet is provided with a guide groove recessed towards the hot air circulation component, and the opening of the air inlet is arranged on the top surface of the guide groove.

[0016] By adopting the above technical solution, the air inlet opening is equipped with a recessed guide channel facing the hot air circulation component. This guide channel directs external cold air into the fryer body, improving airflow efficiency and uniformity, thereby enhancing the heating effect and cooking quality of the food. Simultaneously, the guide channel design also helps reduce the probability of external dust and other impurities entering the fryer body, thus keeping the equipment clean.

[0017] Optionally, the fryer body has a cooking chamber for arranging the frying baskets, one frying basket is arranged in one cooking chamber, two frying baskets are arranged vertically in the fryer body and the two cooking chambers are independent of each other, and a set of hot air circulation components is arranged in one cooking chamber.

[0018] By adopting the above technical solution, the setting of two cooking chambers in the fryer body, and the corresponding arrangement of a set of hot air circulation components in each cooking chamber, helps to control the food in the two cooking chambers and helps to make the temperature distribution in the frying basket more uniform, so that the food can be heated more evenly.

[0019] Optionally, the baffle plate divides the inner cavity of the fryer body into a hot air channel between the frying basket and the baffle plate and a cold air channel between the fryer body and the baffle plate, wherein the first fan is arranged in the cold air channel and the second fan is arranged in the hot air channel.

[0020] By adopting the above technical solution, the baffle plate divides the inner cavity of the fryer body into a hot air channel and a cold air channel, achieving effective separation of hot and cold air. The first fan is arranged in the cold air channel, which can effectively draw in external cold air and deliver it to the hot air channel for heating by the heating element; the second fan is arranged in the hot air channel, which can ensure that the heated hot airflow is evenly distributed in each frying basket, thereby improving heating efficiency and the uniformity of food heating.

[0021] Optionally, the back panel of the fryer is provided with an exhaust channel on one side of the air inlet, which connects the hot air channel, the cold air channel and the outer cavity of the fryer body, and one hot air channel connects to one exhaust channel.

[0022] By adopting the above technical solution, the exhaust structure is located on one side of the air inlet structure, and the exhaust duct connects the hot air duct, the cold air duct, and the outer cavity of the fryer body. This allows some hot air to be cooled by the cold air duct before being delivered to the outer cavity of the fryer body, thereby reducing the probability of the output hot air scalding the user. At the same time, the exhaust duct can effectively remove excess heat and exhaust gas, prevent the equipment from overheating, and extend the service life of the double-layer air fryer.

[0023] Optionally, a cooling gap is provided between the bottom surface of the fryer body and the bottom surface of the cooking chamber, and the cooling gap is connected to the cold air channel. An air outlet penetrating the inner and outer chambers of the fryer body is also provided on the bottom surface of the fryer body, and mounting feet are provided on the outer bottom of the fryer body.

[0024] By adopting the above technical solution, a cooling gap is set between the bottom surface of the fryer body and the bottom surface of the cooking chamber, and this cooling gap is connected to the cold air channel. This effectively reduces the impact of heat generated during cooking on the bottom of the fryer, improving the safety and service life of the equipment. Simultaneously, an air vent penetrating the inner and outer chambers is provided on the bottom surface of the fryer body, ensuring smooth airflow within the cold air channel and further enhancing heat dissipation. Furthermore, the mounting feet on the outer bottom not only increase the product's stability but also help keep the air vent unobstructed, enhancing the overall user experience.

[0025] Optionally, the frying basket is equipped with a shelf, and the shelf has circulation holes that extend through the upper and lower sides of the shelf.

[0026] By adopting the above technical solution, a shelf is installed inside the frying basket, and the shelf has circulation holes running through both the top and bottom sides. This allows air to form a good circulation path inside the frying basket, thereby improving the evenness of food heating, reducing cooking time, and increasing cooking efficiency. At the same time, the design of the circulation holes also helps to better transfer heat to the surface of the food, further enhancing the cooking effect.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. A double-layer air fryer, wherein the air in the outer cavity of the fryer body is transported to the cooking chamber to heat the food by means of a hot air circulation component, and the hot air output from the hot air circulation component is blocked and driven to the frying basket by means of an air guide plate and an air guide component on the air guide plate, thereby accelerating the heating efficiency of the food and helping to promote the even heating of the food.

[0029] 2. The air inlet and guide groove on the back panel of the fryer can guide external cold air into the fryer body, improve the flow efficiency and uniformity of airflow, thereby improving the heating effect and cooking quality of food, and also helping to reduce the entry of dust and impurities into the cooking chamber.

[0030] 3. The cooling gap at the bottom of the fryer body, the air outlet, and the support feet installed at the bottom of the fryer body ensure smooth airflow in the cold air channel, improving the heat dissipation effect of the double-layer air fryer. Attached Figure Description

[0031] Figure 1This is a cross-sectional schematic diagram of the double-layer air fryer in the embodiments of this application.

[0032] Figure 2 This is a schematic diagram of the exploding basket in an embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the back plate of the fryer in an embodiment of this application.

[0034] Figure 4 yes Figure 1 A magnified view of a portion of point A in the middle.

[0035] Figure 5 This is a partially enlarged schematic diagram of the exhaust component and the fryer body in an embodiment of this application.

[0036] Figure 6 This is a schematic diagram of the cooperation between the air guide top plate and the air guide assembly and the hot air circulation assembly in the embodiments of this application.

[0037] Figure 7 yes Figure 1 A magnified view of a portion of point B in the middle.

[0038] Explanation of reference numerals in the attached drawings: 1. Fryer body; 11. Cooking chamber; 12. Main shell; 121. Air outlet; 122. Mounting feet; 13. Fryer back panel; 131. Air inlet; 132. Air guide channel; 133. Air outlet; 1331. Air exhaust component; 13311. Air exhaust duct; 14. Motor frame; 15. Baffle plate; 151. Guide section; 1511. Air guide plate; 16. Hot air duct; 17. Cold air duct; 18. Top of air guide. 19. Cooling gap; 2. Frying basket; 21. Handle; 22. Shelf; 221. Circulation hole; 222. Support rod; 23. Mounting base; 231. Mounting slot; 24. Support groove; 25. Ventilation opening; 3. Hot air circulation assembly; 31. Drive motor; 32. First fan; 33. Second fan; 34. Heating element; 4. Air guide assembly; 41. First air guide plate group; 42. Second air guide plate group; 43. Third air guide plate group. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] This application discloses a double-layer air fryer. (Refer to...) Figure 1 and Figure 2A double-layer air fryer includes an air fryer body 1, two frying baskets 2 arranged within the air fryer body 1, and a hot air circulation assembly 3 installed within the air fryer body 1. The air fryer body 1 has cooking chambers 11 for arranging the frying baskets 2, with one frying basket 2 arranged in each cooking chamber 11. The two frying baskets 2 are arranged vertically within the air fryer body 1, and the two cooking chambers 11 are independent of each other. Each cooking chamber 11 has a corresponding set of hot air circulation assemblies 3. A vent 25 is provided on the side of the frying basket 2 facing the hot air circulation assembly 3, allowing air heated by the hot air circulation assembly 3 to enter the inner cavity of the frying basket 2. For easy handling by the user, a handle 21 is provided on the side of the frying basket 2 away from the hot air circulation assembly 3.

[0041] Reference Figure 1 and Figure 3 The fryer body 1 includes a main shell 12 and a fryer back plate 13 for covering the rear opening of the main shell 12 and located on the side of the hot air assembly facing away from the frying basket 2. The main shell 12 and the fryer back plate 13 are connected and fixed by screws. The fryer back plate 13 has a trapezoidal cross-section and an air inlet 131. The air inlet 131 penetrates the inner and outer cavities of the fryer body 1 and is arranged longitudinally on the fryer back plate 13. The opening of the air inlet 131 is provided with a guide groove 132 that is recessed towards the hot air circulation assembly 3. The opening of the air inlet 131 is arranged on the top surface of the guide groove 132, so that the air from the outer cavity of the fryer body 1 can enter the inner cavity of the fryer body 1 along the direction of the guide groove 132.

[0042] Reference Figure 1 and Figure 4 The hot air circulation assembly 3 includes a drive motor 31, a first fan 32 arranged on the output shaft of the drive motor 31, a second fan 33 arranged on the output shaft of the drive motor 31 and located on the side of the first fan 32 facing the frying basket 2, and a heating element 34 arranged between the second fan 33 and the frying basket 2. The fryer body 1 has a motor bracket 14 for mounting the drive motor 31, and a baffle plate 15 is also provided between the first fan 32 and the second fan 33. The baffle plate 15 divides the inner cavity of the fryer body 1 into a hot air channel 16 located between the frying basket 2 and the baffle plate 15, and a cold air channel 17 located between the fryer body 1 and the baffle plate 15. The first fan 32 is arranged in the cold air channel 17, and the second fan 33 is arranged in the hot air channel 16. The cold air channel 17 connects two vertically arranged cooking chambers 11, and each cooking chamber 11 corresponds to one hot air channel 16, so as to achieve different temperature control for the food in different chambers.

[0043] Reference Figure 3 and Figure 4The back panel 13 of the fryer is provided with an exhaust port 133 on one side of the air inlet 131, and an exhaust component 1331 is provided at the exhaust port 133. The exhaust component 1331 has an exhaust channel 13311 that connects the hot air channel 16, the cold air channel 17, and the outer cavity of the fryer body 1, so that some of the hot air in the hot air channel 16 can be cooled by the cold air channel 17 and then output to the outer cavity of the fryer body 1, thereby reducing the probability of the hot air inside the fryer body 1 scalding the user. There are two exhaust components 1331, and the exhaust components 1331 are arranged corresponding to the hot air circulation component 3.

[0044] Reference Figure 1 and Figure 6 The top surface of the baffle plate 15 has a guide portion 151 that curves toward the frying basket 2. The second fan 33 is a centrifugal fan, and the guide portion 151 of the baffle plate 15 is provided with a guide plate 1511 for guiding hot air to the inner cavity of the frying basket 2. The guide plate 1511 is inclined in the vertical direction of the baffle plate 15, and the inclination direction of the guide plate 1511 is consistent with the inclination direction of the fan blades of the second fan 33. The top of the baffle plate 15 is connected to a top air guide plate 18 that extends toward the frying basket 2 and is located at the top of the frying basket 2, and the bottom surface of the top air guide plate 18 is provided with an air guide assembly 4. The air guide assembly 4 includes two first air guide plate groups 41 arranged in a trumpet shape on the bottom surface of the top air guide plate 18, a second air guide plate group 42 connected to the side of the first air guide plate group 41 away from the baffle plate 15 and arranged parallel to the baffle plate 15, and a third air guide plate group 43 inclinedly arranged on the second air guide plate group 42. The first air guide plate group 41 and the third air guide plate group 43 are arranged on both sides of the guide plate 1511. The first air guide plate group 41 is inclined towards both sides of the fryer body 1 in a direction away from the baffle plate 15, and the side of the first air guide plate group 41 closest to the baffle plate 15 is located on the side of the inclined opening of the guide plate 1511, and is arranged opposite to the guide plate 1511. In order to reduce the interference of the air guide assembly 4 on the arrangement of the frying basket 2 in the cooking chamber 11, the top surface of the air guide assembly 4 is higher than the top surface of the frying basket 2. In this embodiment, the first air guide plate group 41 includes two opposing first air guide plates, the second air guide plate group 42 includes two parallel second air guide plates, and the third air guide plate group 43 includes two opposing third air guide plates.

[0045] Reference Figure 1 , Figure 2 and Figure 7To further improve the uniform heating effect of the food in the frying basket 2, a shelf 22 is installed in the frying basket 2. The shelf 22 has circulation holes 221 that penetrate through the upper and lower sides of the shelf 22, and the shelf 22 is arranged correspondingly to the ventilation opening 25 of the frying basket 2. This allows the hot air generated by the hot air circulation component 3 to be delivered to the inner cavity of the frying basket 2, and the upper and lower sides of the food can be heated through the circulation holes 221 on the shelf 22, resulting in a more ideal heating effect. A mounting base 23 for installing the shelf 22 is provided on the inner cavity side wall of the frying basket 2. The mounting base 23 has a mounting slot 231 for inserting the shelf 22. To improve the stability of the shelf 22 in the frying basket 2, the frying basket 2 has a support groove 24 at the bottom of the mounting base 23 for the bottom surface of the mounting base 23 to abut. In this embodiment, the frying basket 2 also has a shelf 22 composed of multiple support rods 222.

[0046] Reference Figure 1 To further improve the exhaust efficiency of the double-layer air fryer, a cooling gap 19 is provided between the bottom surface of the fryer body 1 and the bottom surface of the cooking chamber 11, and the cooling gap 19 is connected to the cold air channel 17. The bottom surface of the main shell 12 of the fryer body 1 is also provided with an air outlet 121 that penetrates the inner and outer chambers of the fryer body 1. The bottom of the outer side of the fryer body 1 is also provided with mounting feet 122, so that the heat generated by the fryer body 1 can be cooled and discharged smoothly through the cold air channel 17.

[0047] The implementation principle of a double-layer air fryer according to an embodiment of this application is as follows: During the use of the double-layer air fryer, the first fan 32 is driven by the drive motor 31 to rotate, allowing outside air to enter the inner cavity of the fryer body 1. Then, the cold air entering from the outside is heated by the cooperation between the second fan 33 and the heating element 34, and the hot air is circulated in the fryer body 1. Then, through the setting of the air guide plate 18 and the air guide assembly 4, part of the air delivered from the second fan 33 can be intercepted and delivered to the inner cavity of the frying basket 2. Then, through the setting of the circulation hole 221 on the shelf 22 in the inner cavity of the frying basket 2, the hot air can reach the bottom of the inner cavity of the frying basket 2 through the shelf 22, thereby heating the food on the shelf 22 from both the top and bottom sides, which helps to improve the heating uniformity of the food.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double layer air fryer characterized in that, The air fryer comprises an air fryer body (1), two air fryer baskets (2) arranged in the air fryer body (1), and an air circulation assembly (3) mounted on the air fryer body (1); the air circulation assembly (3) comprises a driving motor (31), a first fan (32) arranged on an output shaft of the driving motor (31), a second fan (33) arranged on a side of the first fan (32) facing the air fryer basket (2), and a heating element (34) arranged between the second fan (33) and the air fryer basket (2); the air fryer body (1) is provided with an air inlet (131) on a side of the air circulation assembly (3) away from the air fryer basket (2), and the air fryer basket (2) is provided with a ventilation opening (25) on a side facing the air circulation assembly (3); the air fryer body (1) is further provided with a blocking plate (15) between the first fan (32) and the second fan (33), and a top of the blocking plate (15) is connected with a wind guide top plate (18) extending towards the air fryer basket (2) and located on a top of the air fryer basket (2), and a bottom surface of the wind guide top plate (18) is provided with a wind guide assembly (4).

2. A twin air-oven according to claim 1, characterized in that, The second fan (33) is a centrifugal fan, the top of the blocking plate (15) has a guide portion (151) curved towards the air fryer basket (2), and the guide portion (151) is provided with a guide plate (1511) for guiding hot air into the air fryer basket (2), and the guide plate (1511) is arranged obliquely to a vertical direction of the blocking plate (15).

3. A twin air-oven according to claim 2, characterized in that, The wind guide assembly (4) comprises a first wind guide plate group (41) arranged on a bottom surface of the wind guide top plate (18) and arranged in a trumpet shape, a second wind guide plate group (42) arranged parallel to the blocking plate (15), and a third wind guide plate group (43) arranged obliquely to the second wind guide plate group (42), and the first wind guide plate group (41) and the third wind guide plate group (43) are arranged on both sides of the guide plate (1511).

4. A twin air-oven according to claim 3, characterized in that, The bottom surface of the wind guide assembly (4) is higher than the top surface of the air fryer basket (2).

5. The dual layer air fryer of claim 1, wherein, The air fryer body (1) comprises an air fryer back plate (13), the air inlet (131) penetrates the inner and outer chambers of the air fryer body (1) and is arranged on the air fryer back plate (13), the air inlet (131) is provided with a guide groove (132) recessed towards the air circulation assembly (3) at an opening thereof, and the opening of the air inlet (131) is arranged on a top surface of the guide groove (132).

6. A twin air-oven according to claim 5, characterized in that, The air fryer body (1) has cooking chambers (11) for arranging the air fryer baskets (2), one of the cooking chambers (11) is arranged with one of the air fryer baskets (2), two of the air fryer baskets (2) are arranged in the air fryer body (1) in an up-down manner, two of the cooking chambers (11) are independent of each other, and one of the cooking chambers (11) is arranged with a set of air circulation assemblies (3).

7. A twin air-oven according to claim 6, characterized in that, The barrier plate (15) divides the inner cavity of the fryer body (1) into a hot air passage (16) between the fry basket (2) and the barrier plate (15) and a cold air passage (17) between the fryer body (1) and the barrier plate (15), the first fan (32) is arranged in the cold air passage (17) and the second fan (33) is arranged in the hot air passage (16).

8. A twin air-oven according to claim 7, characterized in that, The fryer back plate (13) is provided with an exhaust passage (13311) on one side of the air inlet (131) which communicates with the hot air passage (16), the cold air passage (17) and the outer cavity of the fryer body (1), one hot air passage (16) communicates with one exhaust passage (13311).

9. A twin air-oven according to claim 8, characterized in that, The bottom surface of the fryer body (1) has a cooling gap (19) with the bottom surface of the cooking chamber (11) and the cooling gap (19) communicates with the cold air passage (17), the bottom surface of the fryer body (1) is also provided with an air outlet (121) which penetrates the inner and outer cavities of the fryer body (1), and the outer bottom of the fryer body (1) is provided with a mounting leg (122).

10. The dual layer air fryer of claim 1, wherein, The fry basket (2) is provided with a storage rack (22) and the storage rack (22) is provided with circulation holes (221) which penetrate the upper and lower sides of the storage rack (22).