A cooking device with roasting function and strong exhaust function and a cooking integrated machine

Abstract

The application relates to a cooking device with a baking function and a strong exhaust function and a cooking integrated machine, wherein the fan blade of the hot air machine comprises a supporting plate, first blades, second blades, a first elastic reset member and a second elastic reset member; under the wind resistance generated by the clockwise rotation of the fan blade, each first blade is kept at an initial height, the first elastic reset member is kept in a non-stressed state, and the height of each second blade is synchronously adjusted to the maximum; under the wind resistance generated by the counterclockwise rotation of the fan blade, the height of each first blade is synchronously adjusted to the maximum, the height of each second blade is kept at an initial state, and the second elastic reset member is kept in a non-stressed state. By adjusting the rotating direction of the fan blade, the height of each first blade and the height of each second blade can be simultaneously adjusted by using the wind resistance generated by rotation, so that the hot air internal circulation air volume and the air induction volume of the inner cavity of the inner container can be adjusted according to the humidity of the inner cavity of the inner container, the exhaust speed of the inner container is further adjusted, and the cooking effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cooking devices, in particular to a cooking device with baking function and strong exhaust function and a cooking all-in-one machine. BACKGROUND

[0002] The cooking device with baking function such as oven utilizes heat radiation combined with hot air circulation to realize the baking of food, such as the Chinese utility model patent with patent number ZL202123188610.3 (authorized publication number CN216776756U) and the Chinese utility model patent with patent number ZL202220402969.1 (authorized publication number CN217852507U). Specifically, the back of the inner container of the cooking device is provided with a hot air fan, and the rear side of the inner cavity of the inner container is provided with a hot air baffle, which surrounds the hot air chamber with the back plate of the inner container. The fan blade of the above-mentioned hot air fan is located in the hot air chamber, and the outer periphery of the fan blade is provided with a heating pipe. In the cooking state, the fan blade of the hot air fan rotates, and the gas in the inner cavity of the inner container enters the hot air chamber through the air inlet on the hot air baffle. The gas is heated in the hot air chamber and flows back to the inner cavity of the inner container under the action of the centrifugal force of the fan blade, thereby forming a hot air circulation in the inner cavity of the inner container and realizing the heating of the food in the inner container. Among them, the air volume of the fan blade of the hot air fan affects the speed of the hot air circulation, and further affects the cooking efficiency. The air volume of the fan blade is related to the height of the blade (i.e. the width of the blade along the axial direction), and the greater the height of the blade, the greater the air volume of the fan blade.

[0003] In addition, when baking food with high moisture content, in order to avoid excessive humidity inside the inner container, a blowing method is generally used to realize the strong exhaust of moisture in the inner container, for example, the Chinese utility model patent with patent number ZL202120251000.4 (authorized publication number CN215502452U) discloses a steaming and baking cooking device, which includes an inner container with an air inlet and a heating element for heating the inner container. The inner container is also provided with an air blowing port, and the air blowing port is provided with an air blowing assembly for blowing air into the inner container through the air blowing port. The above-mentioned heating element can generate a first heating heat and a second heating heat with a temperature higher than the first heating heat, and the above-mentioned air blowing assembly works intermittently and has at least two states: in the first state, the air blowing assembly works during the cooking process, and the above-mentioned heating element works at the second heating heat; in the second state, the air blowing assembly works at the end of the cooking process, and the above-mentioned heating element works at the first heating heat.

[0004] However, the existing air blowing strong exhaust method needs to additionally set an air blowing device (generally an air blower), and needs to additionally set a control device (generally a control valve) to control the air blowing amount and start-stop of the air blowing strong exhaust, thereby increasing the production cost of the cooking device. SUMMARY

[0005] The first technical problem to be solved by the present application is to provide a roasting cooking device with a strong exhaust function, which can control the air volume without an additional control device.

[0006] The second technical problem to be solved by the present application is to provide a roasting cooking device with a strong exhaust function, which can control the air volume without an additional control device and has good cooking effect.

[0007] The third technical problem to be solved by the present application is to provide a cooking integrated machine with the above cooking device.

[0008] The technical solution adopted by the present application to solve at least one of the above technical problems is a roasting cooking device with a strong exhaust function, comprising an inner container, a hot air chamber is arranged on the side wall of the inner container, and a hot air fan is installed on the hot air chamber, the fan blades of the hot air fan are located in the hot air chamber, and the hot air chamber has an air inlet and an air outlet in addition to an air guide opening that communicates with the outside, wherein the air inlet and the air outlet are located in the inner cavity of the inner container, the air inlet is arranged on one side of the fan blades and opposite to the fan blades, and the air outlet is arranged around the air inlet, the air guide opening is arranged on the other side of the fan blades and opposite to the fan blades, and characterized in that,

[0009] The fan blades of the hot air fan comprise a support plate, first blades and second blades, wherein the first blades are arranged on the front surface of the support plate in a circumferential direction at intervals with the rotating shaft of the fan blades as the center, and the second blades are arranged on the back surface of the support plate in a circumferential direction at intervals with the rotating shaft of the fan blades as the center, and the height of each first blade and each second blade relative to the surface of the support plate is adjustable,

[0010] Further comprising first elastic return members and second elastic return members, in the initial state, the height of each first blade and each second blade is the smallest, and each elastic return member is in an unforced state,

[0011] Under the wind resistance generated by the clockwise rotation of the fan blades, each first blade is kept at the initial height, the first elastic return member is kept in the unforced state, and the height of each second blade is adjusted synchronously to the maximum, and the second elastic return member is deformed to make each second blade have a tendency to return to the initial state,

[0012] Under the wind resistance generated by the counterclockwise rotation of the fan blades, the height of each first blade is adjusted synchronously to the maximum, the first elastic return member is deformed to make each first blade have a tendency to return to the initial state, and the height of each second blade is kept at the initial state, and the second elastic return member is kept in the unforced state.

[0013] Further, each of the first blades is arranged along a radial direction of the fan blade, and each of the first blades comprises a first piece and a second piece arranged along a circumferential direction on one side of the first piece, the first piece and the second piece each extend along a length direction of the first blade where the first piece and the second piece are arranged, each of the first piece and the second piece is a straight plate, and a width of the first piece is smaller than a width of the second piece,

[0014] In a state where the height of each of the first blades is the smallest, the first piece of each of the first blades is perpendicular to the front surface of the support plate, and the second piece of each of the first blades is attached to the front surface of the support plate, at this time, the actual height of each of the first blades is the height of the corresponding first piece;

[0015] In a state where the height of each of the first blades is the largest, the first piece of each of the first blades is attached to the front surface of the support plate, and the second piece of each of the first blades is perpendicular to the front surface of the support plate, at this time, the actual height of each of the first blades is the height of the corresponding second piece.

[0016] Further, the first piece of each of the first blades is arranged perpendicularly to the second piece of each of the first blades. In this way, the height of each of the first blades can be adjusted by the movement of the first piece and the second piece of each of the first blades.

[0017] Further, one side edge of the first piece of each of the first blades and a corresponding side edge of the second piece of each of the first blades each extend along the radial direction of the fan blade, and the one side edge of the first piece and the corresponding side edge of the second piece are fixed to each other along the length direction to form a first swing shaft, and each of the first blades is arranged on the front surface of the support plate by swinging around the corresponding first swing shaft. In this way, the actual height of each of the first blades can be adjusted by swinging each of the first blades so that one of the pieces of each of the first blades is perpendicular to the front surface of the support plate, and in an initial state, the wind resistance generated by the clockwise rotation of the fan blade acts on the outer side surface of each of the first pieces (relative to the first blade where the first piece is arranged), at this time, each of the first pieces is kept in the initial state (i.e. the state where the height of each of the first blades is the smallest) due to the mutual limiting action between each of the second pieces and the front surface of the support plate; the wind resistance generated by the counterclockwise rotation of the fan blade acts on the inner side surface of each of the first pieces, at this time, each of the first blades swings around the first swing shaft as the center, the first piece of each of the first blades is attached to the front surface of the support plate, and the second piece of each of the first blades is perpendicular to the front surface of the support plate, at this time, the width of each of the first pieces is the height of the corresponding first blade, i.e. the height of each of the first blades is adjusted to the largest.

[0018] Further, each of the first blades is an integral piece, so that the structure of each of the first blades is firm.

[0019] Furthermore, each second blade is a straight plate, and one side edge of each second blade extends radially along the fan blade to form a second swing axis. Each second blade is swingably mounted on the back of the support plate via the corresponding second swing axis. This allows the actual height of each second blade to be adjusted by swinging the second blade. Furthermore, the minimum height of each second blade is zero. When the height of each second blade is zero, the air intake of the air vent is zero. This allows the opening and closing of the air vent to be controlled without the need for a separate control device for controlling the opening and closing of the air vent.

[0020] Furthermore, a first guide shaft is fixed to one end of each of the first blades, and a first guide groove corresponding to each of the first guide shafts is provided on the fan blades. Each of the first guide grooves is arc-shaped, and each of the first guide shafts is inserted into the corresponding first guide groove and can move back and forth along the corresponding first guide groove.

[0021] When each first blade is at its maximum height, each first guide shaft abuts against one end of the corresponding first guide groove, while when each first blade is at its minimum height, each first guide shaft abuts against the other end of the corresponding first guide groove. The cooperation between each first guide shaft and the corresponding first guide groove guides the swinging of each first blade relative to the front face of the support plate, thereby enabling each first blade to swing smoothly and synchronously. At the same time, each first blade can be stably limited to its maximum and minimum heights, thereby improving the reliability of height adjustment of each first blade.

[0022] Furthermore, the first elastic return member is a coil spring disposed at the center of the front surface of the support plate, and each first guide shaft is fixed to the inner end of each first blade. The inner mounting end of the first elastic return member is fixed to the front surface of the support plate, while the outer output end is linked to each first guide shaft via a first transmission mechanism. In this way, the first elastic return member can act synchronously on each first blade, so that the first blade at the maximum height state can be synchronously restored to the initial state.

[0023] Furthermore, a circular first annular groove centered on the rotation axis of the fan blade is axially protruded at the center of the front side of the support plate, and the first elastic reset member is accommodated inside the first annular groove.

[0024] The first transmission mechanism includes the first annular groove and a first annular block circumferentially embedded in the first annular groove and capable of sliding along the first annular groove, and the first guide grooves are circumferentially spaced apart on the outer annular wall of the first annular groove, and the inner annular wall of the first annular groove is provided with a first sliding groove for the output end of the first elastic return member to be inserted and move back and forth.

[0025] The outer side of the first annular block is provided with a first outer guide groove corresponding to each first guide groove and allowing the end of the corresponding first guide shaft to be inserted and move back and forth, and the inner side of the first annular block is provided with a first inner guide groove corresponding to the first sliding groove and allowing the output end of the first elastic reset member to be inserted and move back and forth. Under the wind resistance generated by the clockwise rotation of the fan blade, the first guide shaft of each first blade abuts against the corresponding end of the first guide groove in which it is located, and simultaneously abuts against the corresponding end of the first outer guide groove in which it is located. In addition, the output end of the first elastic reset member abuts against the corresponding end of the first inner guide groove, and the first elastic reset member is in an unforced state. Under the wind resistance generated by the counterclockwise rotation of the fan blade, the first guide shaft of each first blade moves along the first guide groove in which it is located until it abuts against the other end of the first guide groove, and simultaneously moves along the first outer guide groove in which it is located until it abuts against the other end of the first outer guide groove. Under the transmission of the first annular block, the output end of the first elastic reset member moves along the first inner guide groove synchronously until it abuts against the other end of the first inner guide groove, thereby achieving the synchronous adjustment of the height of each first blade from the minimum state to the maximum state.

[0026] Further, each of the first guide grooves is formed on the outer ring wall of the first ring groove, and each of the first outer guide grooves is formed by radially recessing the outer circumferential surface of the first annular block and extending axially,

[0027] The first sliding groove extends along the inner ring wall of the first ring groove, and the first inner guide groove is formed by radially recessing the inner circumferential surface of the first annular block. Thus, the first annular block can better transmit the movement of each first guide shaft to the first elastic reset member, or better transmit the elastic force of the first elastic reset member to each first guide shaft.

[0028] Further, one end of each of the second blades is fixed with a second guide shaft, and the fan blade is further provided with a second guide groove corresponding to each second guide shaft, each second guide groove is in the shape of a circular arc, and each second guide shaft is inserted into the corresponding second guide groove and can move back and forth along the corresponding second guide groove,

[0029] In the state of maximum height of each second blade, each second guide shaft abuts against one end of the corresponding second guide groove, and in the state of minimum height of each second blade, each second guide shaft abuts against the other end of the corresponding second guide groove. Through the cooperation of each second guide shaft and the corresponding second guide groove, the swing of each second blade relative to the back of the support plate can be guided, so that each second blade can stably and synchronously swing, and each second blade can be stably positioned to the state of maximum height and the state of minimum height, thereby improving the reliability of the height adjustment of each second blade.

[0030] Further, the second elastic return member is a coil spring arranged at the center of the back surface of the support plate, and each second guide shaft is fixed to the inner side end of each second vane. The mounting end of the inner side of the second elastic return member is fixed to the back surface of the support plate, and the output end of the outer side is connected to each second guide shaft through a second transmission mechanism.

[0031] Further, the back surface of the support plate is provided with a second circular groove in the center of the back surface in the axial direction, and the second elastic return member is arranged in the inner side of the second circular groove.

[0032] The second transmission mechanism includes the second circular groove and a second ring block embedded in the second circular groove in the circumferential direction and capable of sliding in the second circular groove. Each second guide groove is arranged on the outer ring wall of the second circular groove in the circumferential direction, and the inner ring wall of the second circular groove is provided with a second sliding groove for inserting and moving back and forth the output end of the second elastic return member.

[0033] The outer side of the second ring block is provided with a second outer guide groove corresponding to each second guide groove for inserting and moving back and forth the end of the corresponding second guide shaft, and the inner side of the second ring block is provided with a second inner guide groove corresponding to the second sliding groove for inserting and moving back and forth the end of the output end of the second elastic return member. In the clockwise rotation state of the fan blade, under the action of wind resistance, the second guide shaft of each second vane moves along the second guide groove until the other end of the second guide groove (relative to the initial state) is abutted, and moves along the second outer guide groove until the other end of the second outer guide groove (relative to the initial state) is abutted. Under the transmission of the second ring block, the output end of the second elastic return member moves synchronously along the second inner guide groove until the other end of the second inner guide groove (relative to the initial state) is abutted, realizing the synchronous adjustment of the height of each second vane from the minimum state to the maximum state. Under the action of wind resistance generated by the counterclockwise rotation of the fan blade, each second vane oscillates, and the second guide shaft is abutted with the corresponding end of the second guide groove and the corresponding end of the second outer guide groove. In addition, the output end of the second elastic return member is abutted with the corresponding end of the second inner guide groove, and the second elastic return member is in an unforced state.

[0034] Further, each second guide groove is arranged on the outer ring wall of the second circular groove in the up-down direction, and each second outer guide groove is radially concave on the outer circumferential surface of the second ring block and extends axially,

[0035] The second sliding groove extends along the inner ring wall of the second circular groove, and the second inner guide groove is radially concave on the inner circumferential surface of the second ring block. Thus, the second ring block can better transmit the action of each second guide shaft to the second elastic return member, or better transmit the elastic force of the second elastic return member to each second guide shaft.

[0036] The technical solution adopted to further solve the third technical problem mentioned above is: an all-in-one cooking machine, including a cooking device, characterized in that the cooking device adopts the grilling function cooking device with strong exhaust function as described above.

[0037] Furthermore, the cooking device includes a stove mounted on top of the cooking device, the stove having a heat dissipation channel installed therein for dissipating heat from the heat-generating electrical components therein, and the air inlet of the inner container is fluidly connected to the air outlet of the heat dissipation channel. Thus, the outside air introduced into the inner container through the air inlet has a certain temperature, which can reduce the impact on the uniformity of the temperature field inside the inner container compared to directly introducing cold air.

[0038] Compared with the prior art, the advantages of the present invention are: in the state where the fan blades of the present invention rotate clockwise, under the action of wind resistance, each first blade is maintained at its initial height, the first elastic reset member is maintained in an unstressed state, and the height of each second blade is at its maximum, and the second elastic reset member is deformed so that each second blade has a tendency to return to its initial state. At this time, the amount of air entering the hot air chamber from the inner cavity of the liner is small, while the amount of air entering the hot air chamber from the air inlet is large. In this way, the proportion of external air in the gas flowing back to the inner cavity of the liner from the return air inlet is greater than the original gas in the inner cavity of the liner. The amount of hot air circulating in the inner cavity of the liner is small, while the amount of induced air is large, and the moisture in the inner cavity of the liner is squeezed and quickly discharged.

[0039] When the fan blades rotate counterclockwise, under the action of wind resistance, the height of each first blade is at its maximum. The first elastic return member deforms, causing each first blade to tend to return to its initial state, while the height of each second blade remains at its initial state, and the second elastic return member remains unstressed. At this time, the air volume entering the hot air chamber from the inner cavity of the liner is large, while the air volume entering the hot air chamber from the air inlet is small. As a result, the proportion of gas originally in the inner cavity of the liner in the gas flowing back into the inner cavity of the liner from the return air inlet is greater than that of the outside air. The volume of hot air circulating in the inner cavity of the liner is large, while the volume of induced air is small, and the moisture in the inner cavity of the liner is slowly discharged.

[0040] It can be seen that the present invention can adjust the height of each first blade and the height of each second blade at the same time by adjusting the rotation direction of the fan blades and utilizing the wind resistance generated by the rotation, thereby adjusting the hot air circulation volume and the air intake volume in the inner cavity of the inner tank according to the humidity in the inner cavity of the inner tank, and then adjusting the dehumidification speed of the inner tank, while achieving both cooking efficiency and dehumidification efficiency, thereby improving the cooking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of a cooking machine according to an embodiment of the present invention;

[0042] Figure 2 is a cross-sectional view of a cooking machine according to an embodiment of the present invention;

[0043] Figure 3 is a schematic view of the structure of the fan in another direction of the embodiment of the present application; Figure 2 is a schematic view of the structure of the fan in another direction of the embodiment of the present application;

[0044] Figure 4 is a schematic view of the structure of the fan in another direction of the embodiment of the present application;

[0045] Figure 5 is a schematic view of the structure of the fan in another direction of the embodiment of the present application; Figure 4

[0046] Figure 6 is a schematic view of the structure of the fan in another direction of the embodiment of the present application;

[0047] Figure 7 is a schematic view of the structure of the fan in another direction of the embodiment of the present application; Figure 6

[0048] is a schematic view of the structure of the fan in another direction of the embodiment of the present application; Figure 8

[0049] Figure 9 is a schematic view of the structure of the fan in another direction of the embodiment of the present application. Figure 8 DETAILED DESCRIPTION

[0050] The present application will be further described below in conjunction with the embodiments of the drawings.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the present application can be arranged in different directions, so these directional terms are only illustrative and should not be regarded as limiting, such as "upper", "lower" do not necessarily mean the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more of the features.

[0052] As Figures 1 to 9 ​​​As shown in the drawings, a cooking machine comprises a cooking device 2 and a stove 1 arranged above the cooking device 2. The cooking device 2 is a baking function cooking device with strong exhaust function, which comprises an inner container 20, a hot air chamber 30 arranged on the rear side wall of the inner container 20, and a hot air fan 8 installed on the hot air chamber 30, wherein the fan blade 4 of the hot air fan 8 is located in the hot air chamber 30, and the outer periphery of the fan blade 4 is provided with a back heating pipe 33. Moreover, the hot air chamber 30 is respectively provided with an air inlet 21, an air inlet 31 and an air outlet 32 which are communicated with the outside, wherein the air inlet 31 and the air outlet 32 are respectively arranged in the inner cavity of the inner container 20, the air inlet 31 is arranged on one side of the fan blade 4 and faces the fan blade 4, the air outlet 32 is arranged around the outer periphery of the air inlet 31, and the air inlet 21 is arranged on the other side of the fan blade 4 and faces the fan blade 4. Specifically, the hot air baffle 3 is arranged on the rear inner surface of the inner container 20 to form the hot air chamber 30, the air inlet 31 and the air outlet 32 are respectively arranged on the hot air baffle 3, and the air inlet 21 is arranged on the rear side wall of the inner container 20.

[0053] Further, the fan blade 4 of the hot air fan 8 comprises a support plate 40, first blades 41 and second blades 42, wherein the support plate 40 is a circular plate, the first blades 41 are arranged on the front surface of the support plate 40 in a circumferential direction and are spaced apart from each other around the rotation shaft 81 of the fan blade 4, and the second blades 42 are arranged on the rear surface of the support plate 40 in a circumferential direction and are spaced apart from each other around the rotation shaft 81 of the fan blade 4, and the height of each first blade 41 and each second blade 42 relative to the surface of the support plate 40 can be adjusted.

[0054] Further, the fan blade 4 further comprises first elastic return members 71 and second elastic return members 72. In the initial state, the height of each first blade 41 and each second blade 42 is the smallest, and each elastic return member is in an unforced state. As shown in Figure 2 Figure 4 and Figure 5 As shown in the drawings, under the wind resistance generated by the clockwise rotation (seen from the front) of the fan blade 4, each first blade 41 is kept at the initial height, the first elastic return member 71 is kept in the unforced state, the height of each second blade 42 is synchronously adjusted to the maximum, and the second elastic return member 72 is deformed so that each second blade 42 has a tendency to return to the initial state; as shown in Figure 8 9 and 9 As shown in the drawings, under the wind resistance generated by the clockwise rotation (seen from the front) of the fan blade 4, each first blade 41 is kept at the initial height, the first elastic return member 71 is kept in the unforced state, the height of each second blade 42 is synchronously adjusted to the maximum, and the second elastic return member 72 is deformed so that each second blade 42 has a tendency to return to the initial state; as shown in

[0055] In the state that the fan blades 4 rotate clockwise in the application, under the action of wind resistance, each first blade 41 is kept at the initial height, the first elastic reset member 71 is kept in the state of not being stressed, the height of each second blade 42 is maximum, and the second elastic reset member 72 is deformed to make each second blade 42 have the tendency to restore to the initial state. At this time, the air volume entering the hot air chamber 30 from the inner cavity of the inner container 20 is small, and the air volume entering the hot air chamber 30 from the air inlet 21 is large, so that the proportion of the external air in the gas flowing back to the inner cavity of the inner container 20 from the air return port 32 is greater than that of the original gas in the inner cavity of the inner container 20, the hot air internal circulation air volume in the inner cavity of the inner container 20 is small, and the air induction volume is large, so that the moisture in the inner cavity of the inner container 20 is quickly discharged. In the state that the fan blades 4 rotate counterclockwise, under the action of wind resistance, the height of each first blade 41 is maximum, the first elastic reset member 71 is deformed to make each first blade 41 have the tendency to restore to the initial state, and the height of each second blade 42 is kept at the initial height, and the second elastic reset member 72 is kept in the state of not being stressed. At this time, the air volume entering the hot air chamber 30 from the inner cavity of the inner container 20 is large, and the air volume entering the hot air chamber 30 from the air inlet 21 is small, so that the proportion of the original gas in the inner cavity of the inner container 20 in the gas flowing back to the inner cavity of the inner container 20 from the air return port 32 is greater than that of the external air, the hot air internal circulation air volume in the inner cavity of the inner container 20 is large, and the air induction volume is small, so that the moisture in the inner cavity of the inner container 20 is slowly discharged. It can be seen that by adjusting the rotating direction of the fan blades 4, the height of each first blade 41 and the height of each second blade 42 can be adjusted simultaneously by using the wind resistance generated by rotation, so that the hot air internal circulation air volume and the air induction volume in the inner cavity of the inner container 20 can be adjusted according to the humidity in the inner cavity of the inner container 20, and then the moisture discharge speed of the inner container 20 is adjusted, and the cooking efficiency and the moisture discharge efficiency are simultaneously achieved, and the cooking effect is improved. In the embodiment, the height of each first blade 41 refers to the distance between the front side edge of each first blade 41 and the front surface of the support plate 40, and the height of each second blade 42 refers to the distance between the rear side edge of each second blade 42 and the rear surface of the support plate 40.

[0056] Specifically, in the embodiment, each of the first blades 41 is arranged along the radial direction of the fan blade 4, and each of the first blades 41 comprises a first piece 411 and a second piece 412 located on one side of the first piece 411 in the circumferential direction, the first piece 411 and the second piece 412 extend along the length direction of the first blade 41 in which they are located, each of the first pieces 411 and the second pieces 412 is a straight plate, and the width of the first piece 411 is smaller than that of the second piece 412. In the state that the height of each of the first blades 41 is the smallest, the first piece 411 in each of the first blades 41 is perpendicular to the front surface of the support plate 40, and the second piece 412 is attached to the front surface of the support plate 40, at this time, the actual height of each of the first blades 41 is the height of the corresponding first piece 411; in the state that the height of each of the first blades 41 is the largest, the first piece 411 in each of the first blades 41 is attached to the front surface of the support plate 40, and the second piece 412 is perpendicular to the front surface of the support plate 40, at this time, the actual height of each of the first blades 41 is the height of the corresponding second piece 412. Preferably, further, the first piece 411 and the second piece 412 of each of the first blades 41 are arranged perpendicularly. In this way, the height of each of the first blades 41 can be adjusted by the action of the first piece 411 and the second piece 412 of each of the first blades 41.

[0057] Further, one side edge of the first piece 411 and the corresponding side edge of the second piece 412 of each of the first blades 41 extend along the radial direction of the fan blade 4, and are fixed to each other along the length direction to form a first swing shaft (not shown), each of the first blades 41 is swingably arranged on the front surface of the support plate 40 through the corresponding first swing shaft. In this way, the actual height of each of the first blades 41 can be adjusted by swinging one of the pieces to be perpendicular to the front surface of the support plate 40. Moreover, in the initial state, the wind resistance generated by the clockwise rotation of the fan blade 4 acts on the outer side surface of each of the first pieces 411 (relative to the first blade 41 in which it is located), at this time, due to the mutual limiting action between each of the second pieces 412 and the front surface of the support plate 40, each of the first pieces 411 remains in the initial state (i.e. the state that the height is the smallest); the wind resistance generated by the counterclockwise rotation of the fan blade 4 acts on the inner side surface of each of the first pieces 411, at this time, the wind resistance pushes each of the first blades 41 to swing around the first swing shaft, the first piece 411 of each of the first blades 41 is attached to the front surface of the support plate 40, and the second piece 412 is perpendicular to the front surface of the support plate 40, at this time, the width of each of the second pieces 412 is the height of the corresponding first blade 41, i.e. the height of each of the first blades 41 is adjusted to the largest. Preferably, each of the first blades 41 is an integral piece, so that the structure of each of the first blades 41 is firm. For example, Figure 2As shown, the wind resistance generated by the rotation of the fan blade 4 directly acts on the first piece 411 of each first blade 41. In order to make the wind resistance generated by the rotation of the fan blade 4 better act on each first blade 41, in the embodiment, the inner side edges of the first piece 411 and the second piece 412 of each first blade 41 are respectively inclined outward from back to front relative to the front surface of the support plate 40, and the included angles of the two with the first swing axis are equal.

[0058] Further, each of the above-mentioned second blades 42 is a straight plate, and one side edge of each second blade 42 extends along the radial direction of the fan blade 4 to form a second swing axis (not shown), and each second blade 42 is arranged on the back surface of the support plate 40 by swinging through the corresponding second swing axis. In this way, the actual height of each second blade 42 can be adjusted by swinging each second blade 42, and the minimum height of each second blade 42 is zero, and when the height of each second blade 42 is zero, the air inlet amount of the air inlet 21 is zero, so that the opening and closing control of the air inlet 21 can be realized without another control device for controlling the opening and closing of the air inlet 21. As shown in the figure, Figure 2 As shown, the wind resistance generated by the rotation of the fan blade 4 directly acts on each second blade 42. In order to make the wind resistance generated by the rotation of the fan blade 4 better act on each second blade 42, in the embodiment, the inner side edges of each second blade 42 are respectively inclined outward from back to front relative to the front surface of the support plate 40.

[0059] Further, the inner ends of each of the first blades 41 are respectively fixed with a first guide shaft 41a (in this embodiment, the inner ends of the first swing shafts are fixed), and the fan blade 4 is further provided with a first guide groove 511 corresponding to each of the first guide shafts 41a, each of the first guide grooves 511 is in the shape of a circular arc, and each of the first guide shafts 41a is respectively inserted into the corresponding first guide groove 511 and can move back and forth along the corresponding first guide groove 511. In the state that each of the first blades 41 is at the maximum height, each of the first guide shafts 41a abuts against one end of the corresponding first guide groove 511, and in the state that each of the first blades 41 is at the minimum height, each of the first guide shafts 41a abuts against the other end of the corresponding first guide groove 511. Through the cooperation of each of the first guide shafts 41a and the corresponding first guide groove 511, the swing of each of the first blades 41 relative to the front of the support plate 40 can be guided, so that each of the first blades 41 can stably and synchronously swing, and each of the first blades 41 can be stably positioned to the state of maximum height or minimum height, thereby improving the reliability of the height adjustment of each of the first blades 41. Preferably, the first elastic return member 71 is a coil spring arranged at the center of the front of the support plate 40, each of the first guide shafts 41a is respectively fixed to the inner end of each of the first blades 41, the mounting end inside the first elastic return member 71 is fixed to the front of the support plate 40, and the output end outside is connected to each of the first guide shafts 41a through the first transmission mechanism 5. In this way, the first elastic return member 71 can act on each of the first blades 41 synchronously, so that the first blade 41 in the state of maximum height can be reset to the initial state synchronously. In this embodiment, the central angle of each of the first guide grooves 511 is 90°.

[0060] Further, the central part of the front surface of the support plate 40 is axially provided with a circular first ring groove 51 centered on the rotating shaft 81 of the fan blade 4, and the first elastic return member 71 is accommodated inside the first ring groove 51. The first transmission mechanism 5 includes the first ring groove 51 and a first ring block 52 embedded in the first ring groove 51 in the circumferential direction and capable of sliding along the first ring groove 51, and each first guide groove 511 is provided on the outer ring wall of the first ring groove 51 in the circumferential direction, and the inner ring wall of the first ring groove 51 is provided with a first sliding groove 512 for inserting and moving back and forth the output end of the first elastic return member 71. The outer side of the first ring block 52 is respectively provided with a first outer guide groove 521 corresponding to each first guide groove 511 and for inserting and moving back and forth the end of the corresponding first guide shaft 41a, and the inner side of the first ring block 52 is provided with a first inner guide groove 522 corresponding to the first sliding groove 512 and for inserting and moving back and forth the output end of the first elastic return member 71. Under the wind resistance generated by the clockwise rotation of the fan blade 4, the first guide shaft 41a of each first blade 41 respectively abuts against the corresponding end of the first guide groove 511 where it is located, at the same time abuts against the corresponding end of the first outer guide groove 521 where it is located, in addition, the output end of the first elastic return member 71 abuts against the corresponding end of the first inner guide groove 522, and the first elastic return member 71 is in an unforced state; under the wind resistance generated by the counterclockwise rotation of the fan blade 4, the first guide shaft 41a of each first blade 41 respectively moves along the first guide groove 511 where it is located until it abuts against the other end of the first guide groove 511, at the same time moves along the first outer guide groove 521 where it is located until it abuts against the other end of the first outer guide groove 521, under the transmission of the first ring block 52, the output end of the first elastic return member 71 moves synchronously along the first inner guide groove 522 until it abuts against the other end of the first inner guide groove 522, realizing the synchronous adjustment of the height of each first blade 41 from the minimum state to the maximum state. Preferably, each first guide groove 511 is respectively provided on the outer ring wall of the first ring groove 51 in the up-down direction, and each first outer guide groove 521 is respectively radially concave from the outer circumferential surface of the first ring block 52 and extends axially. The first sliding groove 512 extends along the circumferential direction of the inner ring wall of the first ring groove 51, and the first inner guide groove 522 is radially concave from the inner circumferential surface of the first ring block 52. Thus, the first ring block 52 can better transmit the action of each first guide shaft 41a to the first elastic return member 71, or better transmit the elastic force of the first elastic return member 71 to each first guide shaft 41a.

[0061] Further, in the embodiment, the outer ends of each first vane 41 are respectively provided with a first rotating shaft 41b (in the embodiment, fixed to the outer end of the first swing shaft) extending radially, and the front surface of the support plate 40 is respectively provided with a first shaft seat 43 corresponding to each first rotating shaft 41b, and each first rotating shaft 41b is rotatably connected to the corresponding first shaft seat 43. Thus, each first vane 41 can swing more stably relative to the corresponding first swing shaft.

[0062] Further, the inner end of each second vane 42 is respectively fixed with a second guide shaft 42a (in the embodiment, fixed to the inner end of the second swing shaft), and the fan blade 4 is further provided with a second guide groove 611 corresponding to each second guide shaft 42a, each second guide groove 611 is in the shape of a circular arc, and each second guide shaft 42a is respectively inserted into the corresponding second guide groove 611 and can move back and forth along the corresponding second guide groove 611. In the state that each second vane 42 has the maximum height, each second guide shaft 42a abuts against one end of the corresponding second guide groove 611, and in the state that each second vane 42 has the minimum height, each second guide shaft 42a abuts against the other end of the corresponding second guide groove 611. Through the cooperation of each second guide shaft 42a and the corresponding second guide groove 611, the swing of each second vane 42 relative to the back of the support plate 40 can be guided, so that each second vane 42 can swing stably and synchronously, and each second vane 42 can be stably positioned to the state of maximum height and minimum height, thereby improving the reliability of the height adjustment of each second vane 42. Preferably, the second elastic return member 72 is a coil spring arranged at the center of the back of the support plate 40, each second guide shaft 42a is respectively fixed to the inner end of each second vane 42, the mounting end inside the second elastic return member 72 is fixed to the back of the support plate 40, and the output end outside the second elastic return member 72 is respectively connected to each second guide shaft 42a through the second transmission mechanism 6. In the embodiment, the central angle of each second guide groove 611 is 90°.

[0063] Further, the back surface of the support plate 40 is provided with a second annular groove 61 in the middle of the axial direction, which is circular and centered on the rotating shaft 81 of the fan blade 4, and the second elastic return member 72 is accommodated in the inner side of the second annular groove 61. The second transmission mechanism 6 includes the second annular groove 61 and a second annular block 62 embedded in the second annular groove 61 in the circumferential direction and capable of sliding along the second annular groove 61, and each second guide groove 611 is provided on the outer ring wall of the second annular groove 61 in the circumferential direction, and the inner ring wall of the second annular groove 61 is provided with a second sliding groove 612 for inserting and moving back and forth the output end of the second elastic return member 72. The outer side of the second annular block 62 is respectively provided with a second outer guide groove 621 corresponding to each second guide groove 611 and for inserting and moving back and forth the end of the corresponding second guide shaft 42a, and the inner side of the second annular block 62 is provided with a second inner guide groove 622 corresponding to the second sliding groove 612 and for inserting and moving back and forth the output end of the second elastic return member 72. In the clockwise rotating state of the fan blade 4, under the action of wind resistance, the second guide shaft 42a of each second blade 42 moves along the second guide groove 611 where it is located until it abuts against the other end (relative to the initial state) of the second guide groove 611, and moves along the second outer guide groove 621 where it is located until it abuts against the other end (relative to the initial state) of the second outer guide groove 621, under the transmission of the second annular block 62, the output end of the second elastic return member 72 moves synchronously along the second inner guide groove 622 until it abuts against the other end (relative to the initial state) of the second inner guide groove 622, realizing the synchronous adjustment of the height of each second blade 42 from the minimum state to the maximum state; under the action of wind resistance generated by the counterclockwise rotation of the fan blade 4, the second guide shaft 42a of each second blade 42 abuts against the corresponding end of the second guide groove 611 where it is located, and abuts against the corresponding end of the second outer guide groove 621 where it is located, in addition, the output end of the second elastic return member 72 abuts against the corresponding end of the second inner guide groove 622, and the second elastic return member 72 is in the state of not being stressed. Preferably, each second guide groove 611 is respectively provided on the outer ring wall of the second annular groove 61 in the up-down direction, and each second outer guide groove 621 is respectively radially concave from the outer circumferential surface of the second annular block 62 and extends axially. The second sliding groove 612 extends along the inner ring wall of the second annular groove 61 in the circumferential direction, and the second inner guide groove 622 is radially concave from the inner circumferential surface of the second annular block 62. Thus, the second annular block 62 can better transmit the action of each second guide shaft 42a to the second elastic return member 72, or better transmit the elastic force of the second elastic return member 72 to each second guide shaft 42a.In addition, in the embodiment, the outer end of each second vane 42 has a second rotating shaft 42b (in the embodiment, the inner end of the second rotating shaft is fixed) extending radially, and the rear surface of the support plate 40 is provided with a second shaft seat 44 corresponding to each second rotating shaft 42b, and each second rotating shaft 42b is rotatably connected to the corresponding second shaft seat 44. Thus, each second vane 42 can be more stably swung relative to the corresponding second swing shaft.

[0064] Further, in the embodiment, the stove 1 is provided with a heat dissipation channel 11 for dissipating heat from the heating electrical elements (such as power supply board, display board, etc.) in the stove 1, and the air inlet 21 of the inner container 20 is in fluid communication with the air outlet of the heat dissipation channel 11. In this way, the external air introduced into the inner container 20 through the air inlet 21 has a certain temperature, which can reduce the influence on the uniformity of the temperature field inside the inner container 20 compared with the direct introduction of cold air. Specifically, the stove 1 is provided with an exhaust box 12, and the air outlet of the heat dissipation channel 11 is introduced into the exhaust box 12, and then introduced into the air inlet 21 through the air inlet pipe 22.

[0065] The "fluid communication" referred to in the present application refers to the spatial relationship between two components or parts (hereinafter referred to as first part and second part respectively), i.e. the fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part as mentioned above, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow, or a combination thereof.

Claims

1. A cooking device with a grilling function and a forced exhaust function, comprising an inner pot (20), a hot air chamber (30) provided on the side wall of the inner pot (20) and a hot air blower (8) installed thereon, a fan blade (4) of the hot air blower (8) being located in the hot air chamber (30), and the hot air chamber (30) having an air inlet (21) communicating with the outside, an air inlet (31) and an air return port (32), the air inlet (31) and the air return port (32) being respectively located in the inner cavity of the inner pot (20), wherein: The air inlet (31) is arranged on one side of the fan blade (4) and is opposite to the fan blade (4), and the return air outlet (32) is arranged around the outer periphery of the air inlet (31), and the air inlet (21) is arranged on the other side of the fan blade (4) and is opposite to the fan blade (4), characterized in that: The fan blade (4) of the hot air blower (8) comprises a support plate (40), a first blade (41) and a second blade (42), wherein the first blade (41) is movably arranged on the front side of the support plate (40) with the rotation axis (81) of the fan blade (4) as the center and at intervals along the circumferential direction; similarly, the second blade (42) is movably arranged on the back side of the support plate (40) with the rotation axis (81) of the fan blade (4) as the center and at intervals along the circumferential direction; and the height of each first blade (41) and each second blade (42) relative to the surface of the support plate (40) on which it is located is adjustable. It also includes a first elastic reset member (71) and a second elastic reset member (72). In the initial state, the height of each first blade (41) and each second blade (42) is the smallest, and each elastic reset member is in a non-stressed state. Under the effect of wind resistance generated by the clockwise rotation of the fan blade (4), each first blade (41) is maintained at an initial height, the first elastic reset member (71) remains in an unstressed state, and the height of each second blade (42) is synchronously adjusted to the maximum, and the second elastic reset member (72) is deformed so that each second blade (42) has a tendency to return to its initial state. Under the effect of wind resistance generated by the counterclockwise rotation of the fan blades (4), the height of each first blade (41) is synchronously adjusted to the maximum, and the first elastic reset member (71) is deformed so that each first blade (41) has a tendency to return to its initial state, while the height of each second blade (42) remains in the initial state, and the second elastic reset member (72) remains in an unstressed state.

2. The cooking device with grilling function and strong exhaust function according to claim 1, characterized in that: Each of the first blades (41) is respectively arranged along the radial direction of the fan blade (4), and each of the first blades (41) comprises a first sheet (411) and a second sheet (412) located on one side of the first sheet (411) in the circumferential direction. The first sheet (411) and the second sheet (412) extend respectively along the length direction of the first blade (41) where they are located. Each of the first sheet (411) and each of the second sheet (412) are straight plates, and the width of each of the first sheets (411) is smaller than that of each of the second sheets (412). When the height of each first blade (41) is at its minimum, the first blade (411) in each first blade (41) is perpendicular to the front surface of the support plate (40), and the second blade (412) is in contact with the front surface of the support plate (40). When the height of each first blade (41) is at its maximum, the first blade (411) in each first blade (41) is in contact with the front surface of the support plate (40), while the second blade (412) is perpendicular to the front surface of the support plate (40).

3. The cooking device with grilling function and strong exhaust function according to claim 2, characterized in that: The first body (411) and the second body (412) of each of the first blades (41) are arranged perpendicularly.

4. The cooking device with grilling function and strong exhaust function according to claim 3, characterized in that: A side edge of the first sheet (411) of each first blade (41) and a corresponding side edge of the second sheet (412) extend radially of the fan blade (4), and the two are fixed to each other along the length direction to form a first swing axis. Each first blade (41) is swingably arranged on the front surface of the support plate (40) via the corresponding first swing axis.

5. The cooking device with grilling function and strong exhaust function according to claim 4, characterized in that: Each of the first blades (41) is an integral piece.

6. The cooking device with grilling function and strong exhaust function according to any one of claims 2 to 5, characterized in that: Each of the second blades (42) is a straight plate, and a side edge of each second blade (42) extends along the radial direction of the fan blade (4) to form a second swing axis. Each second blade (42) is swingably arranged on the back side of the support plate (40) via the corresponding second swing axis.

7. The cooking device with grilling function and strong exhaust function according to any one of claims 2 to 5, characterized in that: A first guide shaft (41a) is fixed to one end of each of the first blades (41), and the fan blade (4) is further provided with a first guide groove (511) corresponding to each of the first guide shafts (41a). Each of the first guide grooves (511) is in an arc shape. Each of the first guide shafts (41a) is inserted into the corresponding first guide groove (511) and can move back and forth along the corresponding first guide groove (511). When the height of each first blade (41) is at its maximum, each first guide shaft (41a) abuts against one end of the corresponding first guide groove (511), and when the height of each first blade (41) is at its minimum, each first guide shaft (41a) abuts against the other end of the corresponding first guide groove (511).

8. The cooking device with grilling function and strong exhaust function according to claim 7, characterized in that: The first elastic reset member (71) is a coil spring arranged at the center of the front surface of the support plate (40), and each first guide shaft (41a) is respectively fixed to the inner end of each first blade (41). The inner mounting end of the first elastic reset member (71) is fixed to the front surface of the support plate (40), and the outer output end is respectively linked to each first guide shaft (41a) through the first transmission mechanism (5).

9. The cooking device with grilling function and strong exhaust function according to claim 8, characterized in that: A circular first annular groove (51) centered on the rotation axis (81) of the fan blade (4) is axially protruded at the center of the front side of the support plate (40), and the first elastic reset member (71) is accommodated inside the first annular groove (51). The first transmission mechanism (5) comprises the first annular groove (51) and a first annular block (52) circumferentially embedded in the first annular groove (51) and capable of sliding along the first annular groove (51), and each first guide groove (511) is circumferentially spaced apart on the outer annular wall of the first annular groove (51), and the inner annular wall of the first annular groove (51) is provided with a first sliding groove (512) for the output end of the first elastic reset member (71) to be inserted and move back and forth. The outer side of the first annular block (52) is provided with first outer guide grooves (521) corresponding to the first guide grooves (511) and for the end of the corresponding first guide shaft (41a) to be inserted and move back and forth, and the inner side of the first annular block (52) is provided with first inner guide grooves (522) corresponding to the first sliding grooves (512) and for the output end of the first elastic reset member (71) to be inserted and move back and forth.

10. The cooking device with grilling function and strong exhaust function according to claim 9, characterized in that: Each of the first guide grooves (511) is respectively opened on the outer ring wall of the first annular groove (51) in the upper and lower parts, and each of the first outer guide grooves (521) is respectively formed by being radially concave and axially extending from the outer peripheral surface of the first annular block (52). The first sliding groove (512) extends along the circumferential direction of the inner ring wall of the first annular groove (51), and the first inner guide groove (522) is formed by the radial inward concave of the inner circumferential surface of the first annular block (52).

11. The cooking device with grilling function and strong exhaust function according to claim 6, characterized in that: A second guide shaft (42a) is fixed to one end of each second blade (42), and the fan blade (4) is further provided with a second guide groove (611) corresponding to each second guide shaft (42a). Each second guide groove (611) is in an arc shape. Each second guide shaft (42a) is inserted into the corresponding second guide groove (611) and can move back and forth along the corresponding second guide groove (611). When the height of each second blade (42) is at its maximum, each second guide shaft (42a) abuts against one end of the corresponding second guide groove (611), and when the height of each second blade (42) is at its minimum, each second guide shaft (42a) abuts against the other end of the corresponding second guide groove (611).

12. The cooking device with grilling function and strong exhaust function according to claim 11, characterized in that: The second elastic reset member (72) is a coil spring arranged at the center of the back side of the support plate (40), and each second guide shaft (42a) is respectively fixed to the inner side end of each second blade (42). The inner mounting end of the second elastic reset member (72) is fixed to the back side of the support plate (40), and the outer output end is respectively linked to each second guide shaft (42a) through the second transmission mechanism (6).

13. The cooking device with grilling function and strong exhaust function according to claim 12, characterized in that: A circular second annular groove (61) centered on the rotation axis (81) of the fan blade (4) is axially protruded at the center of the back side of the support plate (40), and the second elastic reset member (72) is accommodated inside the second annular groove (61). The second transmission mechanism (6) comprises the second annular groove (61) and a second annular block (62) circumferentially embedded in the second annular groove (61) and capable of sliding along the second annular groove (61), and each second guide groove (611) is circumferentially spaced apart on the outer annular wall of the second annular groove (61), and a second sliding groove (612) is provided on the inner annular wall of the second annular groove (61) for the output end of the second elastic reset member (72) to be inserted and move back and forth. The outer side of the second annular block (62) is provided with second outer guide grooves (621) corresponding to the second guide grooves (611) and for the end of the corresponding second guide shaft (42a) to be inserted and move back and forth, and the inner side of the second annular block (62) is provided with a second inner guide groove (622) corresponding to the second sliding groove (612) and for the output end of the second elastic reset member (72) to be inserted and move back and forth.

14. The cooking device with grilling function and strong exhaust function according to claim 13, characterized in that: Each of the second guide grooves (611) is respectively opened on the outer ring wall of the second annular groove (61) in the upper and lower parts, and each of the second outer guide grooves (621) is respectively formed by being radially concave and axially extending from the outer peripheral surface of the second annular block (62). The second sliding groove (612) extends along the circumferential direction of the inner ring wall of the second annular groove (61), and the second inner guide groove (622) is formed by the radial inward concave of the inner circumferential surface of the second annular block (62).

15. A cooking machine comprising a cooking device (2), characterized in that: The cooking device (2) adopts a grilling function cooking device with a strong exhaust function as described in any one of claims 1 to 14.

16. The all-in-one cooking machine according to claim 15, wherein: The invention also includes a stove (1) arranged on the cooking device (2), wherein the stove (1) is provided with a heat dissipation channel (11) for dissipating heat from heating electrical components in the stove (1), and the air inlet (21) of the inner pot (20) is fluidically connected to the air outlet of the heat dissipation channel (11).

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