A cooking device, a cooking all-in-one machine and an integrated stove

Abstract

The application relates to a cooking device, a cooking integrated machine and an integrated stove, which comprise an inner container, a gas exhaust port is arranged on a first side wall of the inner container, an air inlet port is also arranged on the first side wall of the inner container, an air chamber is arranged on the side of the first side wall in the inner cavity of the inner container, the air chamber is communicated with the inner cavity of the inner container through a ventilation port, the gas exhaust port and the air inlet port are both located in the air chamber, air inlet fan blades are arranged in the air chamber, the air inlet fan blades are used for driving external air to enter the air chamber through the air inlet port, the air inlet fan blades are oppositely arranged with the first side wall, and the gas exhaust port and the air inlet port are located in different quadrants of a rectangular coordinate system with the center of the horizontal projection of the air inlet fan blades on the first side wall as the center. The positions of the gas exhaust port and the air inlet port are designed, the air flow short circuit phenomenon is avoided, and the air inlet and moisture removal effects of the inner container are ensured.

Description

Technical Field

[0001] This invention relates to the field of cooking appliances, and more particularly to a cooking appliance, a cooking all-in-one machine, and an integrated stove. Background Technology

[0002] Ovens, steam ovens, and other cooking appliances with baking functions have a hot air blower installed at the back of their inner cavity. A hot air baffle is located on the rear side of the inner cavity, forming a hot air chamber with the back panel of the inner cavity. The fan blades of the hot air blower are located within this hot air chamber, and heating elements are arranged around the outer periphery of the fan blades. During operation, under the action of the fan blades, gas in the inner cavity enters the hot air chamber through the air inlet on the hot air baffle. After being heated in the hot air chamber, the gas flows back into the inner cavity under the centrifugal force of the fan blades, thus creating a hot air circulation within the inner cavity and heating the food inside.

[0003] Furthermore, existing cooking appliances with baking functions typically only have one vent on the inner pot. When the air pressure at the vent is greater than the external atmospheric pressure, excess gas in the inner pot is expelled through the vent. However, when baking foods with high moisture content (such as cakes and egg tarts), the humidity inside the inner pot is high, and the above-mentioned venting method cannot remove the moisture in time, thus affecting the cooking effect.

[0004] Therefore, currently, excess steam in the inner liner during baking is generally removed by blowing air. Examples include Chinese utility model patents ZL 202122405399.X (authorization announcement number CN216307871U) entitled "An Integrated Stove with a Cooking Device" and ZL 202221059853.9 (authorization announcement number CN218074470U) entitled "A Blower Structure for a Cooking Device and a Steam-Grill Combination Oven." However, using a blower method requires adding a blower device (such as a blower fan) outside the inner liner, which not only increases the production cost of the cooking device but also occupies additional installation space inside the device. Furthermore, directly blowing gas into the inner liner disrupts the flow field inside, affecting the uniformity of the temperature distribution and thus the cooking effect. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a cooking device that can achieve strong and effective dehumidification of the inner pot, in contrast to the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cooking device that can achieve strong moisture removal from the inner pot and has little impact on the flow field inside the inner pot, in contrast to the prior art.

[0007] The third technical problem to be solved by the present invention is to provide a cooking device that can achieve strong moisture removal from the inner pot and facilitates pipeline layout, in contrast to the prior art.

[0008] The fourth technical problem to be solved by the present invention is to provide a cooking device that can achieve strong moisture removal from the inner pot without occupying additional internal installation space, in contrast to the prior art.

[0009] The fifth technical problem to be solved by the present invention is to provide a cooking appliance that uses the above-mentioned cooking device, in contrast to the prior art.

[0010] The sixth technical problem to be solved by the present invention is to provide an integrated stove that applies the above-mentioned integrated cooking appliance, in contrast to the prior art. The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is as follows: a cooking device, including an inner pot, with an exhaust port on the first side wall of the inner pot, characterized in that an air intake port is also provided on the first side wall of the inner pot, and a wind chamber is provided in the inner cavity of the inner pot on the side where the first side wall is located. The wind chamber communicates with the inner cavity of the inner pot through a ventilation port. The exhaust port and the air intake port are both located in the wind chamber, and an air intake fan blade is installed in the wind chamber. The air intake fan blade is used to drive outside air through the air intake port into the wind chamber. Furthermore, the air intake fan blade is arranged opposite to the first side wall, and in a rectangular coordinate system with the center of the horizontal projection of the air intake fan blade onto the first side wall as the center, the air intake port and the exhaust port are respectively located in different quadrants of the rectangular coordinate system.

[0011] Furthermore, given that the diameter of the air inlet is De1, the diameter of the exhaust outlet is De2, the diameter of the exhaust fan blade is D, the width of the air chamber in the horizontal direction is W, and the height in the vertical direction is H, the distance L2 between the center of the exhaust outlet and the center of the air inlet satisfies the following formula: This allows for further definition of the relative positions between the exhaust port and the air inlet, ensuring the negative pressure intensity (relative to atmospheric pressure) at the air inlet and the positive pressure intensity (relative to atmospheric pressure) at the exhaust port, thus better improving the airflow and moisture removal effect on the inner liner.

[0012] Furthermore, the exhaust fan blades are disposed opposite to the first sidewall, the exhaust port is located within a 1.2D range of the horizontal projection of the exhaust fan blades onto the first sidewall, while the exhaust port is located outside this horizontal projection. The distance L1 between the center of the horizontal projection of the exhaust fan blades onto the first sidewall and the center of the exhaust port satisfies the following formula: This allows the air inlet to be located in a stable and strong negative pressure zone within the negative pressure area of ​​the exhaust fan blades, enabling outside air to be smoothly drawn in through the air inlet. Simultaneously, the pressure at the exhaust port is greater than atmospheric pressure, ensuring smooth exhaust of gas. Furthermore, since a motor driving the exhaust fan blades is typically installed outside the first side wall of the inner liner, limiting L1 provides more space for the piping design at the exhaust port.

[0013] Furthermore, the air inlet is located on the plane of the horizontal central axis of the aforementioned exhaust fan blade. This facilitates the installation of the exhaust fan blade shaft and allows for a better sealing design of the shaft hole. On the other hand, the linear velocity and negative pressure are greater in the area of ​​the exhaust fan blade offset from its central axis, thereby increasing the airflow velocity at the air inlet opposite this area, thus increasing the exhaust speed and improving the dehumidification rate. In addition, it reduces the kinetic energy loss of the airflow entering the exhaust fan blade at the air inlet and allows the airflow to enter the exhaust fan blade at a certain angular velocity, further increasing the exhaust speed and consequently further improving the forced exhaust speed.

[0014] Furthermore, a baffle is provided on the side wall of the inner liner to form the air chamber. The air vents include a first air vent located at the center of the baffle and second air vents spaced around the baffle. A circulating fan blade is also installed in the air chamber, and a heating pipe is provided around the circulating fan blade.

[0015] Furthermore, the central axis of the circulating fan blade coincides with the central axis of the exhaust fan blade, and the circulating fan blade is opposite to the first vent of the baffle, forming a hot air circulation between the air chamber and the inner cavity of the liner. By setting the circulating fan blade to form a hot air circulation between the air chamber and the inner cavity of the liner, cooking efficiency and cooking effect are improved. In addition, the heating tube can preheat the air introduced into the air chamber, and at the same time premix it with the original gas in the inner cavity of the liner. The combination of preheating and premixing can prevent cold air from directly entering the inner cavity of the liner and affecting the uniformity of the temperature field. In addition, the centrifugal force of the exhaust fan blade and the centrifugal force of the circulating fan blade are combined to drive the introduced air into the inner cavity of the liner, accelerating the driving and guiding of the exhaust airflow, thereby increasing the exhaust speed and improving the exhaust and dehumidification efficiency.

[0016] Furthermore, a second ventilation opening is provided at the location opposite the aforementioned air inlet on the baffle. This accelerates the speed at which air enters the inner cavity of the air chamber, thereby increasing the air intake speed at the air inlet.

[0017] Furthermore, in each of the second ventilation openings, the opening area of ​​the second ventilation opening opposite to the aforementioned air intake opening is at least not less than the opening area of ​​the other second ventilation openings. This further ensures the air intake velocity at the air intake opening.

[0018] Furthermore, the area A2 of the exhaust port and the area A of the first vent satisfy the following relationship: 0.02A ≤ A2 ≤ 0.1A. With a constant rotational speed of the exhaust fan blades and the circulating fan blades, the exhaust volume of the exhaust port is directly proportional to its opening area, while the airflow of the exhaust vent is directly proportional to its opening area. The exhaust volume of the exhaust port directly affects the dehumidification effect of the inner liner, and under certain conditions, the two are directly proportional. However, excessive exhaust volume will cause heat loss in the inner liner, affecting cooking efficiency, and will also affect the thermal balance and temperature accuracy of the inner liner cavity.

[0019] Furthermore, an air duct is connected to the air inlet. The minimum cross-sectional area of ​​the air duct is A0, and the area of ​​the air inlet is A1. Therefore, A1 > A0, and A1 ≥ A2. This ensures the smoothness of the airflow path and guarantees the dehumidification effect on the inner liner.

[0020] Furthermore, the area A1 of the air inlet satisfies the following formula: A0≤A1≤0.225πD 2 This ensures smooth airflow, adequate air volume, and ultimately, better ventilation and dehumidification of the inner liner.

[0021] Furthermore, the induced draft fan blades and the circulating fan blades are mounted on the same fan shaft. This enables synchronous driving of the induced draft fan blades and the circulating fan blades, which not only simplifies their structure but also ensures the stability of airflow in the air chamber and the inner cavity of the liner.

[0022] Furthermore, the exhaust fan blade and the circulation fan blade are integrated into one piece. This integrated piece includes a base plate centered on the central axis of each fan blade. First blades are spaced circumferentially on one side surface of the base plate to form the exhaust fan blade, while second blades are spaced circumferentially on the other side surface to form the circulation fan blade. This simplifies the structure of the exhaust fan blade and the circulation fan blade, facilitating better driving, control, and installation in the cooking device.

[0023] The technical solution adopted to further solve the fourth technical problem mentioned above is: a cooking appliance, characterized in that it uses the cooking device described above.

[0024] The technical solution adopted to further solve the fifth technical problem mentioned above is: an integrated stove that uses the cooking appliance as described above, characterized in that a stove is provided on the cooking appliance.

[0025] Compared with the prior art, the advantages of the present invention are as follows: The present invention uses a forced draft method to exhaust excess steam in the inner cavity during the baking process. Compared with the existing forced draft method (which requires an additional blower device in the cooking device), the present invention uses the fan blades installed in the inner cavity to introduce outside air into the inner cavity, so it does not occupy additional internal installation space of the cooking device.

[0026] Furthermore, an air chamber is installed inside the inner liner. Air introduced from the air inlet first enters the air chamber, and then, driven by the centrifugal force of the exhaust fan blades and guided by the air chamber, enters the inner liner cavity through the vent, reducing the interference of the exhaust airflow on the flow field within the inner liner cavity. Additionally, the positions of the exhaust port and air inlet are limited based on the geometric dimensions of the air chamber and the dimensions of the exhaust fan blades to avoid airflow short-circuiting (i.e., the introduced air is not fully mixed with the existing gas in the inner liner cavity and is directly discharged from the exhaust port), ensuring effective airflow and dehumidification of the inner liner. Moreover, limiting the relative positions of the exhaust port and air inlet provides ample space for the arrangement of piping at both locations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the integrated stove in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;

[0029] Figure 3 This is a schematic diagram of the inner liner structure in an embodiment of the present invention (including an impeller, a baffle, and a heating element);

[0030] Figure 4 This is a partial structural diagram of the inner liner in an embodiment of the present invention (with the baffle hidden);

[0031] Figure 5 This is a schematic diagram of another partial structure of the inner liner in an embodiment of the present invention (with the baffle and impeller hidden);

[0032] Figure 6 This is a cross-sectional view of the inner liner in an embodiment of the present invention;

[0033] Figure 7 This is a cross-sectional view of the inner liner in another direction according to an embodiment of the present invention;

[0034] Figure 8 This is a simulation diagram of the relative pressure distribution on the first sidewall of the inner liner in an embodiment of the present invention. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0037] like Figure 1 and Figure 2 As shown, an integrated stove includes a cooking device 1 and a cooktop 2 mounted on the cooking device 1, wherein the cooking device 1 includes an inner pot 10, such as... Figures 2-7 As shown, an exhaust port 101 is provided on the first sidewall of the inner liner 10. Furthermore, an air intake port 102 is also provided on the first sidewall of the inner liner 10, and an air chamber 50 is provided inside the inner liner 10 on the side where the first sidewall is located. The air chamber 50 communicates with the inner cavity of the inner liner 10 (i.e., the space inside the inner liner 10 outside the air chamber 50, hereinafter the same) through a ventilation opening. Both the exhaust port 101 and the air intake port 102 are located within the air chamber 50, and an air intake fan blade 41 is installed in the air chamber 50. The air intake fan blade 41 is used to drive outside air through the air intake port 102 into the air chamber 50. Moreover, the air intake fan blade 41 is arranged opposite to the first sidewall. In a rectangular coordinate system with the center of the horizontal projection of the air intake fan blade 41 onto the first sidewall as the center O, the air intake port 102 and the exhaust port 101 are located in different quadrants of the rectangular coordinate system, such as... Figure 5 As shown.

[0038] As can be seen from the above, the present invention uses a forced draft method to remove excess steam from the inner liner 10 during the baking process. Compared with the existing forced draft method, the present invention uses the forced draft fan blades 41 installed in the inner liner 10 to introduce outside air into the inner liner 10, thus not occupying additional internal installation space of the cooking device 1. Furthermore, the inner liner 10 is provided with a wind chamber 50. The air introduced from the air inlet 102 first enters the wind chamber 50, and then, driven by the centrifugal force of the forced draft fan blades 41 and guided by the wind chamber 50, enters the inner cavity of the inner liner 10 through the vent, reducing the interference of the forced draft airflow on the flow field in the inner cavity of the inner liner 10. In addition, based on the geometric dimensions of the wind chamber 50 and the dimensions of the forced draft fan blades 41, the positions of the exhaust port 101 and the air inlet 102 are defined to avoid airflow short-circuiting (i.e., the introduced air is not fully mixed with the original gas in the inner cavity of the inner liner 10 and is directly discharged from the inner liner 10 through the exhaust port 101), ensuring the forced draft and dehumidification effect of the inner liner 10. Furthermore, defining the relative positions of the exhaust port 101 and the air inlet 102 provides ample space for the arrangement of piping at the air inlet 102 and the exhaust port 101. Specifically, such as Figure 2 As shown, in this embodiment, an exhaust pipe 7 is connected to the exhaust port 101, and an exhaust pipe 3 is connected to the air inlet 102.

[0039] Furthermore, the diameter of the aforementioned air inlet 102 is De1, the diameter of the exhaust outlet 101 is De2, the diameter of the air fan blade 41 is D, the width of the air chamber 50 in the horizontal direction is W, and the height in the vertical direction is H (e.g., ...). Figure 3 As shown), the distance L2 between the center of the exhaust port 101 and the center of the air inlet 102 (as shown) Figure 5 (As shown) satisfies the following formula: This allows for further definition of the relative positions between the exhaust port 101 and the air inlet 102, ensuring the negative pressure intensity (relative to atmospheric pressure) at the air inlet 102 and the positive pressure intensity (relative to atmospheric pressure) at the exhaust port 101, thereby better improving the airflow and dehumidification effect on the inner liner 10.

[0040] Furthermore, such as Figure 4 As shown, the aforementioned exhaust fan blade 41 is disposed opposite to the first sidewall, the aforementioned air inlet 102 is located within a 1.2D range of the horizontal projection of the exhaust fan blade 41 onto the first sidewall, while the exhaust outlet 101 is located outside this horizontal projection, and the distance L1 between the center of the horizontal projection of the exhaust fan blade 41 onto the first sidewall and the center of the exhaust outlet 101 (as shown in the figure) is... Figure 5 (As shown) satisfies the following formula This allows the air inlet 102 to be located in a region with stable and strong negative pressure within the negative pressure zone of the exhaust fan blades 41, enabling outside air to be smoothly introduced through the air inlet 102. Simultaneously, the pressure at the exhaust port 101 is greater than atmospheric pressure, ensuring smooth exhaust of gas through the exhaust port 101. Furthermore, since a motor 43 to drive the exhaust fan blades 41 is typically installed outside the first sidewall of the inner liner 10, limiting L1 provides more space for the piping design at the exhaust port 101. Figure 2 As shown.

[0041] Furthermore, the aforementioned air inlet 102 is located on the plane of the horizontal central axis of the aforementioned induced draft fan blade 41. This facilitates the installation of the fan blade shaft of the induced draft fan blade 41 and allows for a better sealing design of the shaft hole. On the other hand, the linear velocity and negative pressure are greater in the area of ​​the induced draft fan blade 41 that is off-axis, thereby increasing the airflow velocity at the air inlet 102 opposite to this area, thus increasing the induced draft speed and improving the dehumidification rate. In addition, it reduces the kinetic energy loss of the airflow entering the induced draft fan blade 41 at the air inlet 102 and allows the airflow to enter the induced draft fan blade 41 with a certain angular velocity, further increasing the induced draft speed and consequently further improving the forced exhaust speed.

[0042] Furthermore, such as Figure 3 , Figure 6 as well as Figure 7 As shown, a baffle 5 is provided on the side wall of the inner liner 10 to form a wind chamber 50. The ventilation openings include a first ventilation opening 51 located at the center of the baffle 5 and second ventilation openings 52 spaced around the baffle 5. A circulating fan blade 42 is also installed in the wind chamber 50, and a heating pipe 6 is provided around the circulating fan blade 42. The central axis of the circulating fan blade 42 coincides with the central axis of the exhaust fan blade 41, and the circulating fan blade 42 is opposite to the first ventilation opening 51 of the baffle 5, forming a hot air circulation between the wind chamber 50 and the inner cavity of the inner liner 10. By setting the circulating fan blade 42 to form a hot air circulation between the wind chamber 50 and the inner cavity of the inner liner 10, the cooking efficiency is improved and the cooking effect is enhanced. Furthermore, the heating tube 6 preheats the air entering the air chamber 50, while simultaneously premixing it with the existing gas in the inner cavity of the inner liner 10. This combination of preheating and premixing prevents cold air from directly entering the inner cavity of the inner liner 10 and affecting the uniformity of the temperature field. In addition, the centrifugal force of the induced draft fan blade 41 and the centrifugal force of the circulating fan blade 42 combine to drive the introduced air into the inner cavity of the inner liner 10, accelerating the driving and guiding of the induced draft airflow, thereby increasing the induced draft speed and improving the induced draft dehumidification efficiency.

[0043] Preferably, the induced draft fan blade 41 and the circulating fan blade 42 are mounted on the same fan shaft, thereby enabling synchronous driving of the induced draft fan blade 41 and the circulating fan blade 42. This not only simplifies their structure but also ensures the stability of the airflow in the wind chamber 50 and the inner cavity of the inner liner 10. More preferably, the induced draft fan blade 41 and the circulating fan blade 42 are a single piece (in this embodiment, this single piece is an impeller 4, such as...). Figure 6 and Figure 7 As shown, the integral component includes a base plate 40 centered on the central axis of each fan blade. First blades 411 are circumferentially spaced on one side surface of the base plate 40 to form the aforementioned induced draft fan blade 41, while second blades 421 are circumferentially spaced on the other side surface to form the aforementioned circulating fan blade 42. This simplifies the structure of the induced draft fan blade 41 and the circulating fan blade 42, facilitating better driving, control, and installation of both in the cooking device 1.

[0044] Furthermore, the baffle 5 is provided with a second ventilation opening 52 opposite to the air inlet 102, which can accelerate the speed at which air from the air chamber 50 enters the inner cavity of the inner liner 10, thereby increasing the air intake speed at the air inlet 102. Preferably, among the second ventilation openings 52, the opening area of ​​the second ventilation opening 52 opposite to the air inlet 102 is at least not less than the opening area of ​​the other second ventilation openings 52, thereby further ensuring the air intake speed at the air inlet 102.

[0045] Furthermore, the area A2 of the exhaust port 101 and the area A of the first vent 51 satisfy the following relationship: 0.02A≤A2≤0.1A. When the rotational speed of the exhaust fan blade 41 and the circulating fan blade 42 is constant, the exhaust volume of the exhaust port 101 is directly proportional to the opening area of ​​the exhaust port 101, while the airflow of the air intake vent 102 is directly proportional to the opening area of ​​the air intake vent 102. The exhaust volume of the exhaust port 101 directly affects the dehumidification effect of the inner liner 10, and under certain conditions, the two are directly proportional. However, excessive exhaust volume of the exhaust port 101 will cause heat loss in the inner liner 10, affecting cooking efficiency, and will also affect the thermal balance and temperature accuracy of the inner cavity of the inner liner 10. Furthermore, an air intake pipe 3 is connected to the air intake vent 102. The minimum cross-sectional area of ​​the air intake pipe 3 is A0, and the area of ​​the air intake vent 102 is A1. Therefore: A1>A0, A1≥A2. This ensures the smoothness of the airflow path and the dehumidification effect on the inner liner 10. Furthermore, the area A1 of the air inlet 102 satisfies the following formula: A0≤A1≤0.225πD2, which better ensures the smoothness of the airflow path, better ensures the airflow volume, and thus better ensures the dehumidification effect on the inner liner 10.

[0046] In this embodiment, specifically, the first sidewall is the rear sidewall of the inner liner 10. In a Cartesian coordinate system established with the center of the horizontal projection of the exhaust fan blade 41 onto the first sidewall as the center O, the exhaust port 102 is located in the first quadrant, while the exhaust port 101 is located in the second quadrant. Figure 5 As shown. Furthermore, in this embodiment, there are two second ventilation openings 52, wherein the opening area of ​​the second ventilation opening 52 opposite to the air inlet 102 is larger than that of the other second ventilation opening 52.

[0047] Furthermore, given D = 150 mm, W = 444.5 mm, H = 236.5 mm, D e1 =20.2mm, D e2 =20.2mm, then L2 satisfies: 97.5mm≤L2≤306.55mm, specifically, L2=203.5mm; at the same time, 97.5mm≤L1≤241.65mm, specifically, L1=160.5mm.

[0048] Furthermore, A = 8594 mm 2 A2 = 320mm 2 Therefore, A2 = 0.036A; simultaneously, in this embodiment, 0.225πD 2 =15904mm 2 Then A0 = 320mm 2 A1 = 320mm 2 .

[0049] Furthermore, in this embodiment, the simulation diagram of the relative pressure distribution on the rear sidewall of the inner liner 10 is as follows: Figure 8 As shown (the left side is the air intake vent 102, and the right side is the exhaust vent 101), by Figure 8 It is evident that the distribution of the air intake vents 102 is within a relatively strong and stable negative pressure zone, meeting the design requirements for negative pressure induced airflow. The exhaust vents 101 are located in a relatively strong and stable positive pressure zone, which is beneficial for smooth exhaust flow and also meets the design requirements. The numerical simulation shows that the negative pressure induced airflow volume m... 3＝ 1.4g / s, meeting the performance requirements of the design target.

[0050] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber that allows fluid to flow through, or a combination of the above.

Claims

1. A cooking device comprising an inner container (10), a vent (101) being formed on a first side wall of the inner container (10), characterized in that, The first side wall of the inner container (10) is further provided with an air inlet (102), and the inner cavity of the inner container (10) is provided with an air chamber (50) on the side where the first side wall is located. The air chamber (50) is communicated with the inner cavity of the inner container (10) through the air vent, the air exhaust port (101) and the air inlet (102) are both located in the air chamber (50), and an air inlet fan blade (41) is installed in the air chamber (50). The air inlet fan blade (41) is used to drive external air to enter the air chamber (50) through the air inlet (102), The air inlet fan blade (41) is arranged opposite to the first side wall, and in a rectangular coordinate system with the center of the horizontal projection of the air inlet fan blade (41) on the first side wall as the center, the air inlet (102) and the air exhaust port (101) are located in different quadrants of the rectangular coordinate system, The diameter of the air inlet (102) is De1, the diameter of the air exhaust port (101) is De2, the diameter of the air inlet fan blade (41) is D, the width of the air chamber (50) in the horizontal direction is W, and the height of the air chamber (50) in the vertical direction is H, The distance L2 between the center of the exhaust port (101) and the center of the air intake port (102) satisfies the following equation:

2. The cooking apparatus of claim 1, wherein, The air inlet (102) is located in a range of 1.2D of the horizontal projection of the air inlet fan blade (41) on the first side wall, and the air exhaust port (101) is located outside the horizontal projection, Also, the distance L1 between the center of the horizontal projection of the air intake fan blade (41) on the first side wall and the center of the exhaust port (101) satisfies the following equation:

3. The cooking apparatus of claim 2, wherein, The air inlet (102) is located on the plane where the central axis surface of the air inlet fan blade (41) in the horizontal direction is located.

4. The cooking apparatus according to any one of claims 1 to 3, characterized in that, The inner cavity of the inner container (10) is provided with a baffle (5) on the side where the first side wall is located to form the air chamber (50). The air vent includes a first air vent (51) arranged at the center of the baffle (5) and a second air vent (52) arranged at intervals around the baffle (5). A circulating fan blade (42) is further installed in the air chamber (50). The circulating fan blade (42) is provided with a heating pipe (6) around the circulating fan blade (42), The central axis of the circulating fan blade (42) coincides with the central axis of the air inlet fan blade (41), and the circulating fan blade (42) is opposite to the first air vent (51) of the baffle (5) to form a hot air circulation between the air chamber (50) and the inner cavity of the inner container (10).

5. The cooking apparatus of claim 4, wherein The second air vent (52) is arranged opposite to the air inlet (102) at the baffle (5).

6. The cooking apparatus of claim 5, wherein The opening area of the second air vent (52) opposite to the air inlet (102) is at least not smaller than the opening area of the other second air vents (52).

7. The cooking apparatus of claim 4, wherein, The opening area A2 of the air exhaust port (101) and the opening area A of the first air vent (51) satisfy the following relationship: 0.02A≤A2≤0.1A.

8. The cooking apparatus of claim 7, wherein, The air inlet (102) is connected with an air inlet pipe (3). The minimum cross-sectional area of the air inlet pipe (3) is A0, the area of the air inlet (102) is A1, and A1>A0 and A1≥A2.

9. The cooking apparatus of claim 8, wherein, The area A1 of the air inlet (102) satisfies the following formula: A0≤A1≤0.225πD 2 where D is the diameter of the aforementioned air inlet fan blade (41).

10. The cooking apparatus of claim 4, wherein, The air inlet fan blade (41) and the circulating fan blade (42) are installed on the same fan shaft.

11. The cooking apparatus of claim 10, wherein, The air-inducing fan blade (41) and the circulating fan blade (42) are an integral piece, which includes a base plate (40) centered on the central axis of each fan blade, one side surface of the base plate (40) is uniformly provided with first blades (411) along the circumference to form the air-inducing fan blade (41), and the other side surface is uniformly provided with second blades (421) along the circumference to form the circulating fan blade (42).

12. A cooking all-in-one machine, characterized in that, The cooking device (1) according to any one of claims 1 to 11 is used.

13. An integrated stove to which the cooking all-in-one machine according to claim 12 is applied, characterized in that, A stove (2) is arranged above the cooking device (1). A stove (2) is arranged above the cooking device (1).

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