Air duct heat dissipation system and cooking equipment

Abstract

The embodiment of the invention provides an air duct heat dissipation system and cooking equipment, and relates to the technical field of kitchen equipment. The air duct heat dissipation system comprises an air duct structure used for being connected with an inner container of the cooking equipment, and the air duct structure is provided with an air inlet and an air outlet; the heat dissipation fan blades are arranged in the air duct structure; the heating fan blades are arranged in the inner container; the driving device is used for driving one of the cooling fan blades and the heating fan blades to rotate; the linkage device is arranged between the heat dissipation fan blades and the heating fan blades, and the linkage device is used for driving one of the heat dissipation fan blades and the heating fan blades to rotate when the other one of the heat dissipation fan blades and the heating fan blades rotates; the air outlet section is arranged between the heat dissipation fan blades and the air outlet, the linkage device is arranged in the air outlet section, and the air duct heat dissipation system and the cooking equipment can prevent the linkage device from being damaged due to overheating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen equipment, and in particular to an air duct heat dissipation system and a cooking device. BACKGROUND

[0002] A cooking device refers to various devices used for processing, making and cooking food in a kitchen. The cooking device includes an oven, a steam oven, an integrated stove, a stove-steam-baking all-in-one machine, a steam-baking all-in-one machine, a micro-steam all-in-one machine, a micro-baking all-in-one machine, a steam-baking-frying all-in-one machine, or a micro-steam-baking all-in-one machine. Different types of cooking devices can meet the needs of different scenarios. The micro-steam-baking all-in-one machine is a kitchen appliance that integrates microwave, steam and baking functions. The micro-steam-baking all-in-one machine can perform multiple cooking methods such as steam cooking and baking.

[0003] A cooking device such as a micro-steam-baking all-in-one machine includes an inner container. The inner container has a heating fan blade inside. A driving device is arranged on the outer wall of the inner container for driving the heating fan blade to rotate. When the heating fan blade rotates, it can form a diffused convection hot air in the inner container, thereby improving the heating efficiency.

[0004] However, when the internal temperature of the inner container rises, it may indirectly cause the temperature of the driving device to rise. When the temperature of the driving device is too high, the driving device may be damaged, thereby causing the micro-steam-baking all-in-one machine to lose the heating function. SUMMARY

[0005] Embodiments of the present application provide an air duct heat dissipation system and a cooking device to solve the technical problem that the temperature of the driving device rises due to the rising internal temperature of the inner container in related technologies, thereby causing the driving device to be damaged.

[0006] In a first aspect, an air duct heat dissipation system is provided, comprising:

[0007] An air duct structure is arranged to be connected with an inner container of a cooking device. The air duct structure is provided with an air inlet and an air outlet.

[0008] A heat dissipation fan blade is arranged inside the air duct structure.

[0009] A heating fan blade is arranged inside the inner container.

[0010] A driving device is arranged to drive one of the heat dissipation fan blade and the heating fan blade to rotate.

[0011] A linkage device is arranged between the heat dissipation fan blade and the heating fan blade. The linkage device is arranged to drive the other of the heat dissipation fan blade and the heating fan blade to rotate when one of the heat dissipation fan blade and the heating fan blade rotates.

[0012] The heat dissipation fan blade and the air outlet are provided with an air outlet section, and the linkage device is arranged in the air outlet section.

[0013] In some embodiments, the air outlet section includes a steam passage and a heat dissipation passage, the steam passage and the heat dissipation passage are arranged along a vertical direction, the steam passage is communicated with the inner container, at least part of the steam passage and at least part of the heat dissipation passage are separated, the steam passage and the heat dissipation passage are both communicated between the air inlet and the air outlet, and the linkage device is arranged in the part of the heat dissipation passage separated from the steam passage.

[0014] In some embodiments, the heat dissipation passage includes a first containing part and a first communicating part communicated in sequence along a flow direction from the air inlet to the air outlet, the steam passage includes a second containing part and a second communicating part communicated in sequence along a flow direction from the air inlet to the air outlet, the first containing part is separated from the second containing part, the linkage device is arranged in the first containing part, and the first communicating part is communicated with the second communicating part.

[0015] In some embodiments, the air duct heat dissipation system further includes a first baffle, the first baffle has a notch arranged towards an inner top wall of the air duct structure, the first baffle is connected with the inner top wall of the air duct structure, the notch and the inner top wall of the air duct structure form the second containing part, and the first baffle and an inner bottom wall of the air duct structure form the first containing part.

[0016] In some embodiments, the steam passage and the heat dissipation passage are completely separated along a direction from the air inlet to the air outlet.

[0017] In some embodiments, the heat dissipation passage includes a third containing part and a third communicating part communicated in sequence along a flow direction from the air inlet to the air outlet, the steam passage includes a fourth containing part and a fourth communicating part communicated in sequence along a flow direction from the air inlet to the air outlet, the third containing part and the fourth containing part are arranged in a vertical direction, the third communicating part and the fourth communicating part are arranged in a horizontal direction, and the linkage device is arranged in the third containing part.

[0018] In some embodiments, the air duct heat dissipation system further comprises a second baffle, the second baffle comprises a bottom plate and a side plate, the bottom plate is connected to the inner bottom wall of the air duct structure near the edge of the air outlet, the side plate comprises a first connecting part and a second connecting part connected in sequence by the airflow direction from the air inlet to the air outlet, the first connecting part is connected between the bottom plate and the inner top wall of the air duct structure, the third accommodating part is formed between the bottom plate and the inner bottom wall of the air duct structure, the third communication part is formed between the side plate and the inner wall of the air duct structure, the fourth accommodating part is formed between the bottom plate, the first connecting part and the inner top wall of the air duct structure, and the fourth communication part is formed between the second connecting part and the inner wall of the air duct structure.

[0019] In some embodiments, the air duct heat dissipation system further comprises an auxiliary fan blade, the auxiliary fan blade is used to assist the airflow of air from the air inlet to the air outlet, the auxiliary fan blade is connected with the heat dissipation fan blade and rotates synchronously with the heat dissipation fan blade.

[0020] In some embodiments, the heat dissipation fan blade is arranged in the steam passage, and the auxiliary fan blade is arranged in the heat dissipation passage.

[0021] In the second aspect, the embodiments of the present application provide a cooking device, comprising an inner container and the air duct heat dissipation system as described arranged on the inner container.

[0022] The air duct heat dissipation system and the cooking device are provided in the present application. When the driving device drives the heat dissipation fan blade to rotate, the heat dissipation fan blade can suck air from the air inlet into the air duct structure. Because the linkage device is arranged in the air outlet section, the heat generated by the linkage device can be blown out from the air outlet along the air outlet section, thereby dissipating heat from the linkage device and preventing the linkage device from overheating and being damaged. At the same time, because the air duct structure is connected to the inner container, the heat generated by the inner container can be transmitted to the air duct structure, and the heat dissipation fan blade can also blow out the heat generated by the inner container along the air outlet, thereby dissipating heat from the inner container by the heat dissipation fan blade and preventing the inner container from being overheated to affect the user. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0024] Figure 1 The cross-sectional structure diagram of the air duct heat dissipation system provided in the present application in the assembled state Figure 1 ;

[0025] Figure 2 The exploded structure diagram of the air duct structure, the first baffle and the linkage device of the air duct heat dissipation system provided in the present application Figure 1 ;

[0026] Figure 3 A cross-sectional view of the assembled air duct cooling system provided in this application. Figure 2 ;

[0027] Figure 4 Exploded view of the air duct structure, first baffle, and linkage device of the air duct heat dissipation system provided in this application. Figure 2 ;

[0028] Figure 5 A cross-sectional schematic diagram of the air duct structure and partition plate of the air duct heat dissipation system provided in this application;

[0029] Figure 6 A schematic diagram of the air duct structure of the air duct heat dissipation system provided in this application;

[0030] Figure 7 A schematic diagram of the structure of the second baffle of the air duct heat dissipation system provided in this application;

[0031] Figure 8 A schematic diagram of the bottom wall and the second baffle of the air duct structure of the air duct heat dissipation system provided in this application;

[0032] Figure 9 A schematic diagram of the structure of the second pulley, pawl, and ratchet of the air duct cooling system provided in this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Air duct structure; 110. Air inlet; 120. Air outlet; 121. First air outlet; 122. Second air outlet; 123. Third air outlet; 124. Fourth air outlet;

[0035] 200. Drive unit;

[0036] 300. Linkage device; 310. First pulley; 320. Belt; 330. Second pulley; 340. Pawl; 350. Ratchet;

[0037] 400. Air outlet section; 410. Steam passage; 411. Second receiving section; 412. Second connecting section; 413. Fourth receiving section; 414. Fourth connecting section; 420. Heat dissipation passage; 421. First receiving section; 422. First connecting section; 423. Third receiving section; 424. Third connecting section;

[0038] 500. Cooling fan blades;

[0039] 600. Heating the fan blades;

[0040] 700, First baffle; 710, Notch; 720, First vertical section; 730, First horizontal section; 740, Separating ring; 750, Second horizontal section; 760, Second vertical section;

[0041] 800. Second baffle; 810. Base plate; 820. Side plate; 821. First connecting part; 822. Second connecting part;

[0042] 900, Inner liner; 910, First air outlet pipe; 920, Second air outlet pipe; 930, Auxiliary fan blade; 940, Partition plate; 941, Connecting hole.

[0043] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0044] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0045] In related technologies, a microwave-steam-grill combo includes an inner cavity containing rotatable heating fan blades. The heating fan blades are driven by an independent drive device located on the outer wall of the inner cavity. The drive device is a motor that can continuously drive the heating fan blades to rotate at a constant or variable speed. The rotating heating fan blades will push the hot air inside the inner cavity to form a three-dimensional circulating diffusion convection hot air, so that the heat can be evenly penetrated to all surfaces of the food.

[0046] However, when the inner cavity of the microwave-steam-grill combo is running in high-temperature mode for an extended period of time, the large amount of heat accumulated inside will be continuously transferred to the closely connected drive unit through heat conduction and heat radiation. Since the drive unit itself also generates a certain amount of heat during operation, the combination of the two can easily cause the internal temperature of the drive unit to exceed the designed safety threshold. Excessive temperature will first affect the insulation performance of the motor windings, accelerate the demagnetization of the permanent magnet, and may cause the lubricating grease to fail and the bearings to wear more, ultimately causing the drive unit to stop or burn out. Once the drive unit fails, the heating fan blades will not be able to operate, the necessary circulating hot air cannot be formed in the inner cavity, the cooking equipment will lose its heating function, and the cooking equipment will stop working.

[0047] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0048] like Figure 1 As shown, this application embodiment provides a duct cooling system, including:

[0049] The air duct structure 100 is used to connect with the inner pot 900 of the cooking equipment. The air duct structure 100 is provided with an air inlet 110 and an air outlet 120.

[0050] Cooling fan blade 500 is installed inside the air duct structure 100;

[0051] Heated fan blade 600 is located inside the inner liner 900;

[0052] Drive unit 200, drive unit 200 is used to drive one of the cooling fan blades 500 and the heating fan blades 600 to rotate;

[0053] A linkage device 300 is disposed between the cooling fan blade 500 and the heating fan blade 600. The linkage device 300 is used to drive the other fan blade to rotate when one of the cooling fan blade 500 and the heating fan blade 600 rotates.

[0054] An air outlet section 400 is provided between the cooling fan blades 500 and the air outlet 120, and the linkage device 300 is located in the air outlet section 400.

[0055] By adopting the above technical solution, when the drive device 200 drives the cooling fan blades 500 to rotate, the cooling fan blades 500 can draw air from the air inlet 110 into the air duct structure 100. Since the linkage device 300 is set in the air outlet section 400, the heat generated by the linkage device 300 can be blown out from the air outlet 120 along the air outlet section 400, thereby dissipating heat from the linkage device 300 and preventing the linkage device 300 from overheating and being damaged. At the same time, since the air duct structure 100 is connected to the inner liner 900, the heat generated by the inner liner 900 can be transferred to the air duct structure 100. The cooling fan blades 500 can also blow the heat generated by the inner liner 900 out along the air outlet 120, thereby dissipating heat from the inner liner 900 and preventing the inner liner 900 from overheating and affecting the user.

[0056] In this embodiment, the driving device 200 is used to drive the cooling fan blade 500 to rotate, and the linkage device 300 is used to drive the heating fan blade 600 to rotate when the cooling fan blade 500 rotates; in other embodiments, the driving device 200 can also drive the heating fan blade 600 to rotate, and the linkage device 300 can be used to drive the cooling fan blade 500 to rotate when the heating fan blade 600 rotates.

[0057] In this embodiment, the air outlet 120 is disposed on the side wall of the air duct structure 100, and the air inlet 110 is disposed on the top wall of the air duct structure 100. Along the horizontal direction, the heating fan blade 600 is disposed between the air inlet 110 and the air outlet 120. In other embodiments, the air inlet 110 can be disposed on the side wall of the air duct structure 100, and the air inlet 110 and the air outlet 120 can be opposite each other.

[0058] In this embodiment, the drive device 200 is a motor, which is connected to the outer top wall of the air duct structure 100. The air inlet is located below the drive device 200. The output shaft of the motor is connected to the shaft of the cooling fan blade 500 through a coupling, so that the output shaft of the motor can drive the cooling fan blade 500 to rotate synchronously when it rotates.

[0059] In this embodiment, the heating fan blade 600 includes ten first blades, each of which has an "L"-shaped cross section. The "L"-shaped first blade includes interconnected horizontal and vertical sections, with the horizontal section perpendicular to the vertical section. In other embodiments, the number and shape of the first blades can be adaptively adjusted as needed, for example, by adjusting the number of first blades to eight or by setting the first blades to a spiral shape.

[0060] In this embodiment, the cooling fan blade 500 includes fifteen second blades, and the width of some of the second blades gradually increases in the direction away from the axis of the cooling fan blade 500; in other embodiments, the number and shape of the second blades can be adaptively adjusted as needed, for example, the number of second blades can be adjusted to eight, or the second blades can be set to a spiral shape.

[0061] Combination Figure 1 and Figure 2 The air outlet section 400 includes a steam channel 410 and a heat dissipation channel 420. The steam channel 410 and the heat dissipation channel 420 are arranged in a vertical direction. The steam channel 410 is connected to the inner liner 900. At least a portion of the steam channel 410 and at least a portion of the heat dissipation channel 420 are separated. The steam channel 410 and the heat dissipation channel 420 are both connected between the air inlet 110 and the air outlet 120. The linkage device 300 is set in the portion of the heat dissipation channel 420 that is separated from the steam channel 410.

[0062] In this embodiment, the steam channel 410 is disposed above the heat dissipation channel 420; in other embodiments, the steam channel 410 may also be disposed below the heat dissipation channel 420.

[0063] By adopting the above technical solution, since the steam channel 410 is connected to the inner liner 900 and the linkage device 300 is set in the heat dissipation channel 420, the steam generated by the inner liner 900 can be blown out along the steam channel 410, and the heat generated by the heat dissipation device can be blown out along the heat dissipation channel 420. This prevents the steam generated by the inner liner 900 from affecting the linkage device 300 when passing through it, thereby indirectly improving the heat dissipation efficiency of the linkage device 300. Since both the steam channel 410 and the heat dissipation channel 420 are connected between the air inlet 110 and the air outlet 120, when the cooling fan blades 500 rotate, the steam channel 410 and the heat dissipation channel 420 can simultaneously draw in air, so that the air does not need to pass through the linkage device 300 before carrying the steam generated by the inner liner 900 out. This shortens the air flow path, optimizes the airflow distribution, and reduces flow resistance and energy loss.

[0064] Combination Figure 1 and Figure 2 The heat dissipation channel 420 includes a first receiving portion 421 and a first connecting portion 422 connected sequentially along the air inlet 110 toward the air outlet 120. The steam channel 410 includes a second receiving portion 411 and a second connecting portion 412 connected sequentially along the air inlet 110 toward the air outlet 120. The first receiving portion 421 and the second receiving portion 411 are separated. The linkage device 300 is disposed in the first receiving portion 421. The first connecting portion 422 is connected to the second connecting portion 412.

[0065] In this embodiment, a first vent pipe 910 is provided between the inner liner 900 and the second receiving portion 411. There are two first vent pipes 910. One end of the first vent pipe 910 is connected to the inner liner 900, and the other end of the first vent pipe 910 is connected to the second receiving portion 411 of the steam passage 410. The two first vent pipes 910 are respectively provided on opposite sides of the second receiving portion 411. The inner liner 900 is connected to the second receiving portion 411 through the first vent pipes 910.

[0066] By adopting the above technical solution, the cooling fan blades 500 rotate, and air blows the steam inside the inner liner 900 out through the second connecting part 412 through the second receiving part 411. At the same time, air blows the heat generated by the linkage device 300 out through the first connecting part 422 through the first receiving part 421. Since the first receiving part 421 and the second receiving part 411 are separated, the heat generated by the inner liner 900 can be further prevented from affecting the linkage device 300. By connecting the first connecting part 422 and the second connecting part 412, the steam generated by the inner liner 900 and the heat of the linkage device 300 can be combined in the first connecting part 422 and the second connecting part 412 and blown out along the air outlet 120 at the same time, reducing the number of air outlets 120, simplifying the processing technology, and making the structure of the air duct structure 100 simpler.

[0067] Combination Figure 1 and Figure 2 The air duct heat dissipation system also includes a first baffle 700, which has a notch 710 facing the inner top wall of the air duct structure 100. The first baffle 700 is connected to the inner top wall of the air duct structure 100, and a second receiving portion 411 is formed between the notch 710 and the inner top wall of the air duct structure 100. A first receiving portion 421 is formed between the first baffle 700 and the inner bottom wall of the air duct structure 100.

[0068] Combination Figure 1 and Figure 2 In some embodiments, the first baffle 700 includes a first horizontal section 730 and first vertical sections 720 disposed on opposite sides of the first horizontal section 730. The first vertical sections 720 are perpendicular to the first horizontal section 730. The side of the two first vertical sections 720 away from the bottom wall of the air duct structure 100 is connected to the inner top wall of the air duct structure 100. A notch 710 is formed between the first horizontal section 730 and the two first vertical sections 720. A second receiving portion 411 is formed between the first horizontal section 730, the two first vertical sections 720 and the inner top wall of the air duct structure 100. The first baffle 700 can completely separate the end of the first air outlet pipe 910 from the linkage device 300, thereby further preventing steam from affecting the linkage device 300.

[0069] Combination Figure 3 and Figure 4In some embodiments, the first baffle 700 includes a second horizontal section 750, a second vertical section 760, and a partition ring 740. The second vertical section 760 is provided on both sides of the second horizontal section 750. The second vertical section 760 is perpendicular to the second horizontal section 750. The side of the two second vertical sections 760 away from the bottom wall of the air duct structure 100 is connected to the inner top wall of the air duct structure 100. The notch 710 is formed between the second horizontal section 750 and the two second vertical sections 760. The second receiving part 411 is formed between the second horizontal section 750, the two second vertical sections 760, and the inner top wall of the air duct structure 100. The partition ring 740 is provided on the side of the second horizontal section 750 near the air inlet 110. The partition ring 740 is circular. The cooling fan blade 500 is rotatably positioned above the partition ring 740.

[0070] By adopting the above technical solution, and by setting the partition ring 740, when air enters through the air inlet 110, the air is divided into two streams and enters the first receiving part 421 and the second receiving part 411 respectively, thereby further preventing steam from affecting the linkage device 300.

[0071] like Figure 5 As shown, in some embodiments, the steam passage 410 and the heat dissipation passage 420 are completely separated along the direction from the air inlet 110 toward the air outlet 120.

[0072] In this embodiment, the air duct heat dissipation system further includes a partition plate 940, which spans the interior of the air duct structure 100. The circumferential edge of the partition plate 940 is connected to the inner sidewall of the air duct structure 100, so that the partition plate 940 completely separates the steam channel 410 and the heat dissipation channel 420 along the direction from the air inlet 110 to the air outlet 120. A connecting hole 941 is provided on the partition plate 940 and directly below the air inlet 110. The connecting hole 941 is used to connect the steam channel 410 and the heat dissipation channel 420. The partition plate 940 extends to the location of the air outlet 120 to divide the air outlet 120 into a first air outlet 121 and a second air outlet 122. The first air outlet 121 is connected to the steam channel 410, and the second air outlet 122 is connected to the heat dissipation channel 420.

[0073] By adopting the above technical solution, when the cooling fan blades 500 rotate, air is drawn into the interior of the air duct structure 100 from the air inlet 110. Part of the air carries away the heat generated by the inner liner 900 through the steam channel 410 and is discharged from the first air outlet 121. Another part of the air enters the heat dissipation channel 420 through the connecting hole 941, carries away the heat generated by the linkage device 300, and is discharged from the second air outlet 122. By using the partition plate 940, the steam channel 410 and the heat dissipation channel 420 are completely separated along the direction from the air inlet 110 to the air outlet 120, so that the steam flow is completely separated from the hot air flow in the heat dissipation channel 420, further preventing steam from entering the heat dissipation channel 420 and causing damage to the linkage device 300, thereby indirectly improving the heat dissipation efficiency of the linkage device 300.

[0074] Combination Figure 6 to Figure 8 In some embodiments, the heat dissipation channel 420 includes a third receiving portion 423 and a third connecting portion 424 that are sequentially connected along the flow direction from the air inlet 110 to the air outlet 120, and the steam channel 410 includes a fourth receiving portion 413 and a fourth connecting portion 414 that are sequentially connected along the flow direction from the air inlet 110 to the air outlet 120. The third receiving portion 423 and the fourth receiving portion 413 are arranged separately in the vertical direction, and the third connecting portion 424 and the fourth connecting portion 414 are arranged separately in the horizontal direction. The linkage device 300 is disposed in the third receiving portion 423.

[0075] In this embodiment, a second vent pipe 920 is provided between the inner liner 900 and the fourth receiving portion 413. There are two second vent pipes 920. One end of the second vent pipe 920 is connected to the inner liner 900, and the other end of the second vent pipe 920 is connected to the fourth receiving portion 413 of the steam passage 410. The two second vent pipes 920 are respectively provided on opposite sides of the fourth receiving portion 413. The inner liner 900 is connected to the fourth receiving portion 413 through the second vent pipes 920.

[0076] In this embodiment, the third receiving portion 423 is disposed at the lower part of the fourth receiving portion 413, and two third connecting portions 424 are provided. The two third connecting portions 424 are respectively disposed on opposite sides of the fourth connecting portion 414. The third connecting portions 424 and the fourth connecting portions 414 extend to the location of the air outlet 120 to divide the air outlet 120 into the third air outlet portion 123 and the fourth air outlet portion 124. The third air outlet portion 123 is connected to the third connecting portion 424, and the fourth air outlet portion 124 is connected to the fourth connecting portion 414.

[0077] By adopting the above technical solution, when the cooling fan blade 500 rotates, air can simultaneously enter the third receiving part 423 and the fourth receiving part 413. The air entering the third receiving part 423 dissipates heat from the linkage device 300 and can then enter the third air outlet 123 along the third connecting part 424 and be discharged. The air entering the fourth receiving part 413 carries the steam discharged from the inner liner 900 and can enter the fourth air outlet 124 along the fourth connecting part 414 and be discharged. This allows the steam discharged from the inner liner 900 and the hot air after dissipating heat from the linkage device 300 to be discharged at different positions along the air outlet 120, preventing the mixture of steam and hot air from causing excessive temperature and thus preventing the excessively hot air from harming the user. Furthermore, the temperature of the hot air after dissipating heat from the linkage device 300 is lower than the temperature of the steam, allowing the hot air to exchange heat with the steam in the fourth connecting part 414 when flowing in the third connecting part 424, preventing the discharged steam from being too hot and harming the user.

[0078] The air duct cooling system also includes a second baffle 800, which includes a base plate 810 and a side plate 820. The edge of the base plate 810 near the air outlet 120 is connected to the inner bottom wall of the air duct structure 100. The side plate 820 includes a first connecting part 821 and a second connecting part 822 connected sequentially from the air inlet 110 toward the air outlet 120. The first connecting part 821 is connected between the base plate 810 and the inner top wall of the air duct structure 100. A third receiving part 423 is formed between the base plate 810 and the inner bottom wall of the air duct structure 100. A third communicating part 424 is formed between the side plate 820 and the inner wall of the air duct structure 100. A fourth receiving part 413 is formed between the base plate 810, the first connecting part 821 and the inner top wall of the air duct structure 100. A fourth communicating part 414 is formed between the second connecting part 822 and the inner wall of the air duct structure 100.

[0079] In this embodiment, the distance between the base plate 810 and the inner bottom wall of the air duct structure 100 gradually decreases along the flow direction from the air inlet 110 to the air outlet 120. Two side plates 820 are provided, which are respectively provided on opposite sides of the base plate 810. One side of the side plate 820 is connected to the base plate 810, and the other side of the side plate 820 is connected to the inner top wall of the air duct structure 100. The side of the side plate 820 away from the air outlet 120 is flush with the side of the base plate 810 away from the air outlet 120. The side of the side plate 820 near the air outlet 120 extends into the interior of the air outlet 120 to divide the air outlet 120 into a third air outlet 123 and a fourth air outlet 124.

[0080] In this embodiment, a third connecting portion 424 is formed between the two side plates 820 and the inner sidewall of the air duct structure 100, a fourth receiving portion 413 is formed between the bottom plate 810, the two first connecting portions 821 and the inner top wall of the air duct structure 100, and a fourth connecting portion 414 is formed between the two second connecting portions 822, the inner bottom wall of the air duct structure 100 and the inner top wall of the air duct structure 100.

[0081] By adopting the above technical solution, the cooling fan blades 500 rotate to draw air into the interior of the air duct structure 100. The air enters the third receiving part 423, carrying away the heat from the linkage device 300 and is discharged from the third air outlet 123 through the third connecting part 424. At the same time, the air passes through the fourth receiving part 413 to discharge the steam from the inner liner 900 through the fourth connecting part 414 and from the fourth air outlet 124. By adopting the setting of the second baffle 800, the internal space of the air duct structure 100 is rationally planned, making the entire air duct structure 100 more compact. At the same time, the interior of the entire air duct structure 100 forms a layout with a steam channel 410 in the middle and heat dissipation channels 420 on both sides. When the air flows in the heat dissipation channels 420 on both sides, it can simultaneously carry away the heat on the second connecting part 822 of the two side plates 820, thereby further improving the heat dissipation efficiency.

[0082] like Figure 3 As shown, the air duct cooling system also includes an auxiliary fan blade 930, which is used to assist airflow from the air inlet 110 to the air outlet 120. The auxiliary fan blade 930 is connected to the cooling fan blade 500 and rotates synchronously with the cooling fan blade 500.

[0083] In this embodiment, the auxiliary fan blade 930 is sleeved and fixedly connected to the shaft of the heat dissipation fan blade 500, and the auxiliary fan blade 930 is located directly below the heat dissipation fan blade 500.

[0084] By adopting the above technical solution, when the drive device 200 drives the cooling fan blade 500 to rotate, air is drawn into the interior of the air duct structure 100 from the air inlet 110, while the auxiliary fan blade 930 rotates synchronously with the cooling fan blade 500. Under the synergistic effect of the cooling fan blade 500 and the auxiliary fan blade 930, the disturbance area of ​​the air entering the air duct structure 100 is increased, so that some air carries away the heat generated by the inner liner 900 through the steam channel 410 and is discharged from the air outlet 120, and some air carries away the heat generated by the linkage device 300 through the heat dissipation channel 420 and is discharged from the air outlet 120, thereby improving the heat dissipation efficiency of the inner liner 900 and the linkage device 300. By connecting the auxiliary fan blade 930 to the cooling fan blade 500, the cooling fan blade 500 can synchronously drive the auxiliary fan blade 930 to rotate when it rotates, without the need for a separate control device to control the rotation of the auxiliary fan blade 930.

[0085] In this embodiment, the auxiliary fan blade 930 includes sixteen third blades, the cross-section of which is rectangular; in other embodiments, the number and shape of the third blades can be adaptively adjusted as needed, for example, the number of third blades can be adjusted to twelve, or the third blades can be set to a fan shape.

[0086] like Figure 3 As shown, the cooling fan blade 500 is installed in the steam channel 410, and the auxiliary fan blade 930 is installed in the cooling channel 420.

[0087] By adopting the above technical solution, when the cooling fan blade 500 rotates, the air blows the heat generated by the inner liner 900 out of the air outlet 120 along the steam channel 410. Since the auxiliary fan blade 930 is set in the heat dissipation channel 420, when the auxiliary fan blade 930 rotates with the cooling fan blade 500, the cooling fan blade 500 can carry away the heat generated by the linkage device 300. The rotation of the auxiliary fan blade 930 accelerates the air flow in the heat dissipation channel 420, so that more air comes into contact with the linkage device 300, thereby improving the heat dissipation efficiency of the linkage device 300.

[0088] Combination Figure 1 , Figure 2 and Figure 9 In this embodiment, the linkage device 300 includes a first pulley 310, a second pulley 330, a belt 320, a pawl 340, a torsion spring, and a ratchet 350. The shaft of the cooling fan blade 500 extends into the interior of the cooling channel 420. The first pulley 310 is sleeved and fixedly connected to the shaft of the cooling fan blade 500 and is located directly below the auxiliary fan blade 930. The second pulley 330 is rotatably connected to the inner wall of the air duct structure 100. A bracket can be provided on the inner wall of the air duct structure 100 to allow the second pulley 330 to... The 0 is rotatably connected to the inner wall of the air duct structure 100 via a bracket. The belt 320 is wound around the first pulley 310 and the second pulley 330. The pawl 340 is rotatably mounted on the second pulley 330. The torsion spring is sleeved on the rotating shaft of the pawl 340. One end of the torsion spring is connected to the pawl 340, and the other end of the torsion spring is connected to the second pulley 330. The ratchet 350 is sleeved and fixedly connected to the shaft of the heating fan blade 600. The ratchet 350 is located directly above the heating fan blade 600 and inside the second pulley 330.

[0089] By adopting the above technical solution, when cooking food, the drive device 200 drives the cooling fan blades 500 to rotate forward, which in turn drives the auxiliary fan blades 930 to rotate forward. Simultaneously, the first pulley 310 also rotates forward synchronously with the cooling fan blades 500. The first pulley 310 drives the second pulley 330 to rotate forward via the belt 320, which in turn drives the pawl 340 to rotate forward. The pawl 340 engages with the ratchet 350 to drive the ratchet 350 to rotate forward, thereby driving the heating fan blades 600 to rotate forward. The heating fan blades 600 blow hot air onto the food inside the inner pot 900, thus heating the food. When the drive device 200 drives the cooling fan blades 500 to rotate in the opposite direction, the auxiliary fan blades 930 rotate forward. The 0 also rotates in the opposite direction, and at the same time, the cooling fan blade 500 drives the first pulley 310 to rotate in the opposite direction. The first pulley 310 drives the second pulley 330 to rotate through the belt 320, thereby causing the second pulley 330 to drive the pawl 340 to rotate in the opposite direction. The pawl 340 disengages from the ratchet 350 to stop driving the ratchet 350 to rotate, thereby stopping the rotation of the heating fan blade 600 and stopping the food from heating. When air passes through the linkage device 300 in the heat dissipation channel 420, it can dissipate heat from the first pulley 310, the second pulley 330, the belt 320, the pawl 340, the torsion spring and the ratchet 350, preventing the first pulley 310, the second pulley 330, the belt 320, the pawl 340, the torsion spring and the ratchet 350 from overheating and being damaged.

[0090] This application provides a cooking device, including an inner pot 900 and a heat dissipation system disposed on the inner pot 900.

[0091] The specific structure of the air duct heat dissipation system has been described in detail in the above embodiments, and will not be repeated here.

[0092] In this embodiment, the cooking device is a microwave-steam-grill combination machine. In other embodiments, the cooking device may also be an oven, a steam oven, an integrated stove, a stove-steam-grill combination machine, a steam-grill combination machine, a microwave-steam combination machine, a microwave-grill combination machine, or a steam-grill-fry combination machine, etc.

[0093] The cooking equipment provided in this application, through the setting of an air duct heat dissipation system, allows the heat dissipation fan blades 500 to be drawn in through the air inlet 110 when the drive device 200 drives them to rotate. This allows the air to enter the steam channel 410, carrying steam generated by the inner pot 900, and is then discharged through the air outlet 120 along the second connecting part 412, preventing the steam inside the inner pot 900 from harming the user. Meanwhile, the auxiliary fan blades 930 rotate synchronously with the heat dissipation fan blades 500, drawing in air... The air is moved into the heat dissipation channel 420, where it passes through and carries away the heat generated by the first pulley 310, belt 320, second pulley 330, pawl 340, torsion spring, and ratchet 350 in sequence. This dissipates the heat from the first pulley 310, belt 320, second pulley 330, pawl 340, torsion spring, and ratchet 350 before being discharged through the air outlet 120. This prevents the first pulley 310, belt 320, second pulley 330, pawl 340, torsion spring, and ratchet 350 from overheating and being damaged.

[0094] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A duct cooling system, characterized in that, include: A duct structure (100) is provided for connecting to the inner pot (900) of the cooking equipment. The duct structure (100) is provided with an air inlet (110) and an air outlet (120). Cooling fan blades (500) are disposed inside the air duct structure (100); Heated fan blades (600) are disposed inside the inner liner (900); A drive device (200) for driving one of the cooling fan blades (500) and the heating fan blades (600) to rotate; A linkage device (300) is disposed between the heat dissipation fan blade (500) and the heating fan blade (600). The linkage device (300) is used to drive the other of the heat dissipation fan blade (500) and the heating fan blade (600) to rotate when one of them rotates. An air outlet section (400) is provided between the cooling fan blades (500) and the air outlet (120), and the linkage device (300) is located within the air outlet section (400).

2. The air duct heat dissipation system according to claim 1, characterized in that, The air outlet section (400) includes a steam channel (410) and a heat dissipation channel (420), which are arranged vertically. The steam channel (410) is connected to the inner liner (900). At least a portion of the steam channel (410) and at least a portion of the heat dissipation channel (420) are separated. Both the steam channel (410) and the heat dissipation channel (420) are connected between the air inlet (110) and the air outlet (120). The linkage device (300) is disposed in the portion of the heat dissipation channel (420) separated from the steam channel (410).

3. The air duct heat dissipation system according to claim 2, characterized in that, The heat dissipation channel (420) includes a first receiving portion (421) and a first connecting portion (422) connected sequentially along the air inlet (110) toward the air outlet (120). The steam channel (410) includes a second receiving portion (411) and a second connecting portion (412) connected sequentially along the air inlet (110) toward the air outlet (120). The first receiving portion (421) is separated from the second receiving portion (411). The linkage device (300) is disposed in the first receiving portion (421). The first connecting portion (422) is connected to the second connecting portion (412).

4. The air duct heat dissipation system according to claim 3, characterized in that, It also includes a first baffle (700) having a notch (710) facing the inner top wall of the air duct structure (100), the first baffle (700) being connected to the inner top wall of the air duct structure (100), a second receiving portion (411) being formed between the notch (710) and the inner top wall of the air duct structure (100), and a first receiving portion (421) being formed between the first baffle (700) and the inner bottom wall of the air duct structure (100).

5. The air duct heat dissipation system according to claim 2, characterized in that, The steam passage (410) and the heat dissipation passage (420) are completely separated along the direction from the air inlet (110) toward the air outlet (120).

6. The air duct heat dissipation system according to claim 5, characterized in that, The heat dissipation channel (420) includes a third receiving portion (423) and a third connecting portion (424) that are connected sequentially along the air inlet (110) toward the air outlet (120). The steam channel (410) includes a fourth receiving portion (413) and a fourth connecting portion (414) that are connected sequentially along the air inlet (110) toward the air outlet (120). The third receiving portion (423) and the fourth receiving portion (413) are arranged vertically, and the third connecting portion (424) and the fourth connecting portion (414) are arranged horizontally. The linkage device (300) is disposed in the third receiving portion (423).

7. The air duct heat dissipation system according to claim 6, characterized in that, It also includes a second baffle (800), which includes a base plate (810) and a side plate (820). The base plate (810) is connected to the inner bottom wall of the duct structure (100) near the edge of the air outlet (120). The side plate (820) includes a first connecting part (821) and a second connecting part (822) connected sequentially from the air inlet (110) toward the air outlet (120). The first connecting part (821) connects the base plate (810) and the inner wall of the duct structure (100). Between the top walls, the third receiving portion (423) is formed between the bottom plate (810) and the inner bottom wall of the air duct structure (100), the third connecting portion (424) is formed between the side plate (820) and the inner wall of the air duct structure (100), the fourth receiving portion (413) is formed between the bottom plate (810), the first connecting portion (821) and the inner top wall of the air duct structure (100), and the fourth connecting portion (414) is formed between the second connecting portion (822) and the inner wall of the air duct structure (100).

8. The air duct heat dissipation system according to any one of claims 2-7, characterized in that, It also includes an auxiliary fan blade (930) for assisting air to flow from the air inlet (110) toward the air outlet (120). The auxiliary fan blade (930) is connected to the heat dissipation fan blade (500) and rotates synchronously with the heat dissipation fan blade (500).

9. The air duct heat dissipation system according to claim 8, characterized in that, The heat dissipation fan blades (500) are disposed in the steam channel (410), and the auxiliary fan blades (930) are disposed in the heat dissipation channel (420).

10. A cooking device, characterized in that, It includes an inner liner (900) and a duct cooling system as described in any one of claims 1-9 disposed on the inner liner (900).

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