Condensation heat dissipation device and cooking equipment

Abstract

The invention belongs to the technical field of electric appliances, and discloses a condensation heat dissipation device and cooking equipment. The condensation heat dissipation device comprises a fan cover, a fan assembly and a condensation assembly. The fan cover is provided with a heat dissipation air inlet, a heat dissipation air cavity and a heat dissipation air outlet which are sequentially communicated. The fan assembly comprises a heat dissipation impeller, a turbulent flow impeller and a driving motor installed on the fan cover, the heat dissipation impeller and the turbulent flow impeller are coaxially installed on an output shaft of the driving motor at intervals, the turbulent flow impeller is located on the outer side of the fan cover, and the heat dissipation air inlet is formed in the side, away from the turbulent flow impeller, of the fan cover. The heat dissipation impeller is located in the heat dissipation air cavity and right faces the heat dissipation air inlet, and the heat dissipation air outlet is located on the side of the heat dissipation impeller in the radial direction. And the condensation assembly is mounted at the heat dissipation air outlet and is provided with a condensation channel for introducing steam. The cooking equipment comprises the condensation heat dissipation device. The structure compactness of the condensation heat dissipation device can be improved, the structure compactness of the cooking equipment is improved, and the cost of the cooking equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and in particular to a condensation and heat dissipation device and a cooking device. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, cooking appliances such as electric steamers, steam ovens, and ovens are increasingly used in home life, enriching users' choices of cooking methods and improving users' cooking experience.

[0003] In cooking equipment with steaming and baking functions, an electric heating tube and a spoiler fan are usually provided in the inner pot. The electric heating tube is used to heat the air in the cooking cavity, and the spoiler fan is used to promote the air flow in the cooking cavity, thereby improving the temperature uniformity in the cooking cavity to better ensure the cooking effect; a condenser and a heat dissipation fan are provided outside the cooking cavity, and one end of the condenser is connected to the cooking cavity so that during steam cooking, the steam discharged from the cooking cavity can enter the condenser for cooling and condensation, and the heat dissipation fan guides the external airflow to flow to the condenser to dissipate heat from the condenser and improve the condensation effect of the condenser.

[0004] The cooking equipment provided by the prior art needs to realize the steaming function and the baking function, and thus needs to install a turbulent fan and a heat dissipation fan respectively, which leads to a high degree of overall structural complexity of the cooking equipment and occupies a large volume, which is not conducive to realizing the cost reduction and miniaturization design of the cooking equipment. Summary of the invention

[0005] The object of the present invention is to provide a condensing and cooling device and a cooking device, which can reduce the structural complexity of the cooking device, improve the structural compactness, and facilitate the cost reduction and miniaturization of the cooking device.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A condensation heat dissipation device, comprising:

[0008] The fan cover has a heat dissipation air inlet, a heat dissipation air cavity and a heat dissipation air outlet which are connected in sequence;

[0009] A fan assembly, comprising a heat dissipation impeller, a spoiler impeller and a driving motor installed on the fan cover, the heat dissipation impeller and the spoiler impeller are coaxial and installed at intervals on the output shaft of the driving motor, the spoiler impeller is located outside the fan cover, the heat dissipation air inlet is arranged on a side of the fan cover away from the spoiler impeller, the heat dissipation impeller is located in the heat dissipation air cavity and is arranged directly opposite to the heat dissipation air inlet, and the heat dissipation air outlet is located on the side of the heat dissipation impeller in the radial direction;

[0010] A condensation component is installed at the heat dissipation outlet and has a condensation channel for passing steam.

[0011] As an optional technical solution of the condensation heat dissipation device, the fan cover has a partition cavity, and the spoiler impeller, the partition cavity and the heat dissipation impeller are arranged in sequence along the axial direction of the output shaft;

[0012] And / or, a shaft through hole is formed on a side of the fan cover away from the heat dissipation air inlet, the output shaft passes through the shaft through hole, and a sealing structure is provided between the hole wall of the shaft through hole and the outer side wall of the output shaft.

[0013] As an optional technical solution for a condensation heat dissipation device, the sealing structure includes a sleeve mounted on the output shaft and a sealing ring mounted between the outer side of the sleeve and the hole wall of the shaft through-hole, and the sleeve and the sealing ring are rotatably sealed.

[0014] As an optional technical solution for a condensation and heat dissipation device, the sealing ring includes a mounting ring portion and a sealing ring portion coaxially connected to the inner side of the mounting ring portion, the thickness of the mounting ring portion is greater than the thickness of the sealing ring portion, an annular slot is provided on the outer wall of the mounting ring portion, the edge of the shaft through-hole is inserted into the annular slot, and the shaft sleeve rotates through the sealing ring portion.

[0015] As an optional technical solution for a condensing heat dissipation device, a side of the fan cover away from the heat dissipation air inlet is recessed in a direction toward the partition cavity to form a cavity, and the spoiler impeller is located in the cavity.

[0016] As an optional technical solution for a condensing and cooling device, the fan cover includes a separately arranged fan cover, an outer air duct plate and an inner air duct plate, the fan cover is connected to the outer air duct plate and together form the heat dissipation air cavity, the fan cover is provided with the heat dissipation air inlet, the outer air duct plate and the inner air duct plate are connected and together form the partition cavity, and the drive motor is installed on the fan cover.

[0017] As an optional technical solution for a condensation heat dissipation device, the motor housing of the driving motor extends out of the outside of the fan cover through the heat dissipation air inlet;

[0018] And / or, the height of the heat dissipation air cavity in the vertical direction tends to gradually increase from the heat dissipation impeller to the heat dissipation air outlet.

[0019] As an optional technical solution for a condensing and cooling device, the fan cover includes an outer air duct plate and a fan cover which enclose the cooling air cavity. On a projection plane perpendicular to the output shaft, the projection of the fan cover is located within the projection range of the outer air duct plate. The cooling air inlet is provided on a side of the fan cover away from the outer air duct plate. The condensing assembly is installed on the outer air duct plate and is located outside the fan cover.

[0020] As an optional technical solution for a condensation heat dissipation device, the condensation component includes:

[0021] A radiator, the radiator comprising a plurality of heat dissipation fins arranged in sequence and spaced apart along the axial direction of the output shaft, a vertical ventilation channel being formed between two adjacent heat dissipation fins, the ventilation channel being directly connected to the heat dissipation air outlet, and the radiator being mounted on the fan cover;

[0022] The condenser comprises a plurality of condenser sections which are arranged in sequence from top to bottom. Two adjacent condenser sections are connected by a curved pipe section so that the condenser forms a serpentine structure. Each condenser section passes through all the heat dissipation fins, and a steam inlet is formed at the upper end of the condenser.

[0023] As an optional technical solution for a condensation heat dissipation device, the radiator also includes a first mounting plate and a second mounting plate which are arranged opposite to each other along the axial direction of the output shaft, all the heat dissipation fins are located between the first mounting plate and the second mounting plate, the condensation section passes through the first mounting plate and the second mounting plate, the first mounting plate is detachably connected to the fan cover, and the second mounting plate is detachably connected to the external air duct plate.

[0024] As an optional technical solution for a condensing and cooling device, a positioning groove is provided on the side of the fan cover facing away from the outer air duct plate, and one side of the first mounting plate is accommodated in the positioning groove and fastened to the bottom of the positioning groove.

[0025] As an optional technical solution of the condensation heat dissipation device, the second mounting plate is a U-shaped structure with an opening facing away from the first mounting plate, the heat dissipation fins are located between the bottom of the U-shaped structure and the first mounting plate, and both ends of the U-shaped structure are connected to the outer air duct plate;

[0026] And / or, the curved pipe section is located at the outer side of the radiator, the outer air duct plate is provided with a first avoidance hole, and the curved pipe section facing the side of the outer air duct plate is located in the first avoidance hole.

[0027] As an optional technical solution for a condensation heat dissipation device, at least two condensation tubes are arranged side by side along the width direction of the radiator.

[0028] As an optional technical solution for the condensation heat dissipation device, a water collecting box is arranged below the condensation component, the water collecting box has a water collecting cavity, and the lower end of the condensation channel is connected to the water collecting cavity.

[0029] A cooking device comprises an inner pot with a cooking cavity, and also comprises the condensation and heat dissipation device as described above, wherein the fan cover is installed on the outside of the inner pot, and the spoiler impeller is located between the fan cover and the outer wall of the inner pot, and a plurality of air flow holes are opened on the cavity wall of the cooking cavity facing the spoiler impeller.

[0030] Beneficial effects of the present invention:

[0031] The condensation heat dissipation device provided by the present invention has a heat dissipation impeller and a spoiler impeller coaxially and spaced apart on the output shaft of the driving motor, and the spoiler impeller is located on a side of the heat dissipation impeller away from the motor housing of the driving motor. When the condensation heat dissipation device is applied to a cooking device, the spoiler impeller is located on the inner pot and the fan cover and realizes the disturbance of the airflow in the cooking cavity through the airflow holes arranged on the inner pot, and the heat dissipation impeller guides the cooling airflow outside the cooking cavity to flow to the condensation component on the side of the heat dissipation impeller to realize the heat dissipation of the condensation component, which can simultaneously meet the requirements of the turbulence in the cooking cavity and the condensation heat dissipation outside the cooking cavity; at the same time, it can be realized that one driving motor can drive the heat dissipation impeller and the spoiler impeller to rotate simultaneously, The driving components required for the rotation of the heat dissipation impeller and the spoiler impeller are reduced, the driving cost is reduced, and the structural compactness of the condensing heat dissipation device is improved; moreover, since the heat dissipation outlet is arranged on the side of the fan cover and the condensing assembly is arranged opposite the heat dissipation outlet, the condensing assembly and the fan assembly are arranged in a direction perpendicular to the axis of the output shaft, which is beneficial to reducing the size of the condensing heat dissipation device in the axial direction of the output shaft, improving the structural compactness of the condensing heat dissipation device, and improving the condensing and heat dissipation effect of the condensing assembly; since the fan assembly and the condensing assembly are both installed on the fan cover, it is beneficial to realize the modular setting of the condensing heat dissipation device, thereby facilitating the assembly and disassembly of the condensing heat dissipation device on the cooking equipment.

[0032] The cooking device provided by the present invention, by adopting the above-mentioned condensation and heat dissipation device, can improve the structural compactness of the cooking device, reduce the structural complexity and cost of the cooking device, and is conducive to achieving cost reduction and miniaturization design of the cooking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a partial structural schematic diagram of a cooking device provided by an embodiment of the present invention;

[0034] Figure 2 is a schematic structural diagram of a condensation and heat dissipation device provided by an embodiment of the present invention at a certain viewing angle;

[0035] Figure 3 is a schematic structural diagram of a condensation and heat dissipation device provided by an embodiment of the present invention from another perspective;

[0036] Figure 4 It is a schematic diagram of the disassembled structure of the condensation and heat dissipation device provided in an embodiment of the present invention;

[0037] Figure 5 is a cross-sectional view of a condensation and heat dissipation device provided by an embodiment of the present invention;

[0038] Figure 6 yes Figure 5 A partial enlarged view of point I in the middle;

[0039] Figure 7 is a structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0040] Figure 8 It is a schematic diagram of the disassembled structure of the fan assembly provided in an embodiment of the present invention.

[0041] In the figure:

[0042] 100, condensation and heat dissipation device; 200, inner tank; 300, water tank; 400, base; 500, electric heating element;

[0043] 1. Fan assembly; 11. Driving motor; 111. Output shaft; 112. Motor housing; 12. Cooling impeller; 13. Turbine impeller; 14. Bushing;

[0044] 2. Fan cover; 21. Fan cover; 211. Cover top plate; 2111. Heat dissipation air inlet; 2112. Positioning groove; 212. Cover side plate; 213. Fixing plate; 22. External air duct plate; 221. Air duct bottom plate; 2211. First avoidance hole; 222. Air duct side plate; 223. Connecting plate; 23. Internal air duct plate; 231. Concave portion; 2311. Concave cavity; 232. Mounting plate; 233. Extended edge; 234. Fastening edge; 24. Heat dissipation air cavity; 25. Partition cavity;

[0045] 3. Condensation assembly; 31. Radiator; 311. Heat dissipation fins; 312. First mounting plate; 313. Second mounting plate; 32. Condensation tube;

[0046] 4. Sealing ring; 41. Mounting ring; 42. Sealing ring;

[0047] 5. Water collection box; 6. Drain pipe. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] The present embodiment provides a cooking device, which can achieve steaming and baking of food while simplifying the structure of the cooking device, reducing the difficulty of processing and assembling the cooking device, and facilitating miniaturization of the cooking device. The cooking device can be, but is not limited to, a steam-bake all-in-one machine, a microwave steam-bake all-in-one machine, etc.

[0053] like Figure 1 As shown, the cooking device provided in this embodiment includes a machine body, a steam module, an electric heating element 500 and a control module. The machine body includes an inner pot 200, a housing surrounding the outer side of the inner pot 200 and a base 400 installed at the bottom of the inner pot 200, and the inner pot 200 has a cooking cavity with an open front side; the steam module is installed between the inner pot 200 and the housing, and is used to provide hot steam to the inside of the cooking cavity to meet the needs of food steaming; the electric heating element 500 is installed in the inner pot 200, and is used to heat the air in the cooking cavity to meet the functions of baking and heating food; the control module is connected to the steam module and the electric heating element 500 in communication to control the operation of the steam module and the electric heating element 500.

[0054] like Figures 1 to 5 As shown, in this embodiment, the cooking device further includes a condensation heat dissipation device 100 , and the condensation heat dissipation device 100 includes a fan cover 2 , a fan assembly 1 and a condensation assembly 3 . Among them, the fan cover 2 is installed on the outside of the inner pot 200 and has a heat dissipation air inlet 2111, a heat dissipation air cavity 24 and a heat dissipation air outlet which are connected in sequence; the fan assembly 1 includes a heat dissipation impeller 12, a spoiler impeller 13 and a driving motor 11 installed on the fan cover 2, the heat dissipation impeller 12 and the spoiler impeller 13 are coaxial and installed at intervals on the output shaft 111 of the driving motor 11; the spoiler impeller 13 is located on the outside of the fan cover 2 and between the fan cover 2 and the inner pot 200, and the inner pot 200 is provided with a plurality of air flow holes on the side where the spoiler impeller 13 is located; the heat dissipation air inlet 2111 is arranged on the side of the fan cover 2 away from the spoiler impeller 13, and the heat dissipation impeller 12 is located in the heat dissipation air cavity 24 and is arranged opposite to the heat dissipation air inlet 2111, and the heat dissipation air outlet is located on the side of the heat dissipation impeller 12 in the radial direction; the condensation assembly 3 is installed at the heat dissipation air outlet and has a condensation channel for introducing steam, and the air inlet of the condensation channel is connected to the cooking cavity.

[0055] The condensation heat dissipation device 100 provided in this embodiment has a heat dissipation impeller 12 and a spoiler impeller 13 coaxially and spaced apart on the output shaft 111 of the driving motor 11, and the spoiler impeller 13 is located at a motor housing 112 (such as the heat dissipation impeller 12) away from the driving motor 11. Figure 6 ) on one side, so that when the condensation heat dissipation device 100 is applied to cooking equipment, the turbulent impeller 13 is located between the inner pot 200 and the fan cover 2 and realizes the disturbance of the airflow in the cooking cavity through the airflow holes arranged on the inner pot 200, and the heat dissipation impeller 12 guides the cooling airflow outside the cooking cavity to flow to the condensation component 3 on the side of the heat dissipation impeller 12 to realize the heat dissipation of the condensation component 3, which can simultaneously meet the needs of turbulence in the cooking cavity and condensation heat dissipation outside the cooking cavity; at the same time, it can be realized that a driving motor 11 drives the heat dissipation impeller 12 and the turbulent impeller 13 to rotate at the same time, reducing the driving components required for the rotation of the heat dissipation impeller 12 and the turbulent impeller 13, reducing the driving cost, and improving the cooling The condensing and cooling device 100 has a compact structure; moreover, since the heat dissipation outlet is arranged on the side of the fan cover 2 and the condensing component 3 is arranged opposite to the heat dissipation outlet, the condensing component 3 and the fan component 1 are arranged in a direction perpendicular to the axis of the output shaft 111, which is beneficial to reducing the size of the condensing and cooling device 100 in the axial direction of the output shaft 111, improving the compact structure of the condensing and cooling device 100, and improving the condensing and cooling effect of the condensing component 3; since the fan component 1 and the condensing component 3 are both installed on the fan cover 2, it is beneficial to realize the modular setting of the condensing and cooling device 100, thereby facilitating the assembly and disassembly of the condensing and cooling device 100 on the cooking equipment.

[0056] The cooking device provided in this embodiment, by adopting the above-mentioned condensation and heat dissipation device 100, can improve the structural compactness of the cooking device, reduce the structural complexity and cost of the cooking device, and facilitate the cost reduction and miniaturization design of the cooking device.

[0057] Specifically, the heat dissipation impeller 12 is a centrifugal impeller to guide the cooling airflow entering the heat dissipation air chamber 24 to flow along the radial direction of the centrifugal impeller. The turbulent impeller 13 is an axial flow impeller to ensure the stirring effect of the air in the cooking chamber. The specific structures of the centrifugal impeller and the axial flow impeller can be set with reference to the prior art, which is not the focus of this embodiment and is not limited or elaborated in this embodiment.

[0058] It is worth noting that, in this embodiment, the structural settings of the inner tank 200, the base 400, the casing, the steam module and the control device can be set with reference to the prior art. This is not the focus of the present invention and will not be described in detail here.

[0059] In this embodiment, the condensation heat dissipation device 100 is installed on the rear side of the inner pot 200, that is, a plurality of air flow holes are provided on the rear side wall of the inner pot 200, so as to reduce the size of the cooking device in the left-right direction while ensuring sufficient installation space between the inner pot 200 and the housing. In other embodiments, the condensation heat dissipation device 100 can also be installed on one side of the inner pot 200 along the left-right direction.

[0060] In this embodiment, the electric heating element 500 is installed on the side of the fan cover 2 away from the heat dissipation air inlet 2111, and the electric heating element 500 is arranged around the spoiler impeller 13, thereby further improving the spoiler effect of the spoiler impeller 13 on the hot air, and avoiding heat accumulation at the installation position of the electric heating element 500. Furthermore, the electrical connection end of the electric heating element 500 passes through the fan cover 2, so as to facilitate the setting of the power connection structure of the electric heating element 500.

[0061] In order to improve the convenience of installing the spoiler impeller 13 and the electric heating element 500, in the present embodiment, the side of the fan cover 2 away from the heat dissipation air inlet 2111 is recessed in the direction toward the heat dissipation air inlet 2111 to form a concave portion 231 having a concave cavity 2311, and the spoiler impeller 13 and the electric heating element 500 are both located in the concave cavity 2311 on the projection plane perpendicular to the output shaft 111. The concave cavity 2311 is provided to facilitate the installation of the fan cover 2 on the inner liner 200, and to facilitate the cavity wall of the concave cavity 2311 and the outer wall of the inner liner 200 to form an installation space, thereby improving the convenience of matching the condensation heat dissipation device 100 and the inner liner 200.

[0062] Furthermore, the bottom of the cavity 2311 is recessed in the direction toward the heat dissipation air cavity 24 to form a recessed groove, the output shaft 111 is passed through the bottom of the recessed groove, and the spoiler impeller 13 is arranged corresponding to the recessed groove to provide more space for the arrangement of the spoiler impeller 13.

[0063] In this embodiment, the fan cover 2 has a partition cavity 25, and the spoiler impeller 13, the partition cavity 25 and the heat dissipation impeller 12 are sequentially arranged along the axial direction of the output shaft 111, that is, the partition cavity 25 and the heat dissipation air cavity 24 are separated and arranged in the axial direction of the output shaft 111, and the spoiler impeller 13 is located outside the partition cavity 25 on a side away from the heat dissipation air cavity 24. By providing the partition cavity 25, the heat of the hot air flow guided by the spoiler impeller 13 can be reduced from being conducted to the heat dissipation air cavity 24, thereby reducing the influence of the heat in the cooking cavity on the driving motor 11, improving the reliability of the condensation heat dissipation device 100, and also ensuring the cooling effect of the cooling air flow guided by the heat dissipation impeller 12.

[0064] like Figures 2 to 5 As shown, in order to reduce the processing difficulty of the fan cover 2, the fan cover 2 includes a fan cover 21, an outer air duct plate 22 and an inner air duct plate 23. The fan cover 21 and one side of the outer air duct plate 22 together form a heat dissipation air cavity 24. A heat dissipation air inlet 2111 is provided on the fan cover 21. The other opposite side of the outer air duct plate 22 and the inner air duct plate 23 together form a partition cavity 25. The drive motor 11 is installed on the fan cover 21, and the outer air duct plate 22, the fan cover 21 and the inner air duct plate 23 can be detachably connected.

[0065] The inner air duct plate 23 is recessed in the direction toward the fan cover 2 to form a concave cavity 2311, and the inner air duct plate 23 has a mounting plate portion 232 arranged around the concave cavity 2311, and the mounting plate portion 232 is in contact with the outer wall of the inner liner 200 to improve the convenience of matching the fan cover 2 and the inner liner 200. Further, the left and right sides and the top edge of the mounting plate portion 232 are bent in the direction away from the inner liner 200 to form an extended edge portion 233, and the end of the extended edge portion 233 is bent to form a fastening edge portion 234, and the fastening edge portion 234 is detachably connected to the casing, so that the fan cover 2 is fixed to the casing, avoiding or reducing the problem of needing to open a hole in the inner liner 200 due to the installation of the fan cover 2 and the inner liner 200.

[0066] The outer duct plate 22 includes a duct bottom plate portion 221, the edge of which is bent to form a duct side plate portion 222 in a direction away from the fan cover 21, and the end of the duct side plate portion 222 is folded to form a connecting plate portion 223, which is fitted and fastened to the inner duct plate 23 to improve the convenience of connecting the outer duct plate 22 and the inner duct plate 23. The duct bottom plate portion 221 is preferably a rectangular plate structure, and the electrical connection end of the electric heating element 500 passes through the inner duct plate 23 and the duct bottom plate portion 221.

[0067] In the projection plane perpendicular to the output shaft 111, the projection of the fan cover 21 is located within the projection range of the outer air duct plate 22, that is, the size of the fan cover 21 is smaller than the size of the outer air duct plate 22, so as to reduce the overall footprint of the fan cover 2 while ensuring the installation space of the heat dissipation impeller 12, thereby improving the compactness of the structure. The condensation assembly 3 is installed on the outer air duct plate 22 and is located outside the fan cover 21, so as to further reduce the size requirement of the fan cover 21 and improve the convenience of disassembly and assembly of the condensation assembly 3.

[0068] The fan cover 21 includes a cover top plate portion 211 and a cover side plate portion 212 arranged around the periphery of the cover top plate portion 211. The edge of the cover side plate portion 212 is folded outward to form a fixed plate portion 213. The fixed plate portion 213 is fitted and fastened to the air duct bottom plate portion 221 of the outer air duct plate 22 to form a heat dissipation air cavity 24 between the cover top plate portion 211 and the air duct bottom plate portion 221.

[0069] The above-mentioned heat dissipation air inlet 2111 is provided on the cover top plate portion 211. The drive motor 11 is installed at the heat dissipation air inlet 2111, and the motor housing 112 of the drive motor 11 extends out of the outside of the fan cover 2 through the heat dissipation air inlet 2111, so as to facilitate the heat dissipation of the drive motor 11. Specifically, the fan cover 21 includes a mounting ring portion 41 that is coaxial with the heat dissipation air inlet 2111 and is arranged at intervals, and a connecting portion connected between the mounting ring portion 41 and the cover top plate portion 211, and a plurality of connecting portions are arranged at intervals along the circumference of the mounting ring portion 41, the motor housing 112 is penetrated by the mounting ring portion 41, and the motor housing 112 is protrudingly provided with mounting ears, and the mounting ears are detachably connected to the mounting ring portion 41.

[0070] like Figures 5 to 8 As shown, in order to further reduce the conduction of heat from the cooking cavity to the heat dissipation air cavity 24, in this embodiment, a shaft through-hole is provided on the side of the fan cover 2 away from the heat dissipation air inlet 2111, the output shaft 111 is passed through the shaft through-hole, and a sealing structure is provided between the hole wall of the shaft through-hole and the outer side wall of the output shaft 111. The provision of the sealing structure can reduce or prevent the conduction of heat from the turbulent impeller 13 to the heat dissipation air cavity 24 through the shaft through-hole, which is more conducive to ensuring the heat dissipation effect of the cooling airflow.

[0071] In this embodiment, the sealing structure includes a sleeve 14 sleeved on the output shaft 111 and a sealing ring 4 sleeved between the outer side of the sleeve 14 and the hole wall of the shaft through hole, and the sleeve 14 and the sealing ring 4 are rotatably sealed. By arranging the sleeve 14 on the output shaft 111, it is possible to avoid wear caused by direct rotational cooperation between the output shaft 111 and the sealing ring 4, thereby improving the service life of the sealing structure and ensuring the sealing effect.

[0072] The sealing ring 4 includes a mounting ring portion 41 and a sealing ring portion 42 coaxially connected to the inner side of the mounting ring portion 41. The thickness of the mounting ring portion 41 is greater than that of the sealing ring portion 42. The outer wall of the mounting ring portion 41 is provided with an annular slot, the edge of the shaft through-hole is inserted into the annular slot, and the shaft sleeve 14 rotates through the sealing ring portion 42. The arrangement of the mounting ring portion 41 enables the edge of the sealing ring 4 to have sufficient thickness to be plugged and matched with the edge of the shaft through-hole, so that when the fan assembly 1 is disassembled and assembled, the sealing ring 4 can be stably installed at the edge of the shaft through-hole, reducing the difficulty of disassembly and assembly of the fan assembly 1; at the same time, since the thickness of the sealing ring portion 42 is less than that of the mounting ring portion 41, the sealing ring portion 42 has good deformation performance, thereby reducing the resistance when the shaft sleeve 14 rotates relative to the sealing ring portion 42, while ensuring the sealing effect, ensuring the smoothness of the rotation of the output shaft 111.

[0073] Furthermore, a first limiting structure and a second limiting structure are provided on the output shaft 111, and the spoiler impeller 13 is limited between the first limiting structure and one end of the shaft sleeve 14 to limit the axial movement of the spoiler impeller 13 along the output shaft 111, and the heat dissipation impeller 12 is limited between the second limiting structure and the other end of the shaft sleeve 14 to limit the axial movement of the heat dissipation impeller 12 along the output shaft 111.

[0074] In the present embodiment, the height of the heat dissipation air cavity 24 in the vertical direction tends to gradually increase from the heat dissipation impeller 12 to the heat dissipation air outlet, thereby enabling the cooling air flow to enter the heat dissipation air cavity 24 from the heat dissipation air inlet 2111. The cooling air flow flows in the heat dissipation air cavity 24 in a diffused state, which is beneficial to slow down the flow rate of the cooling air flow flowing out of the heat dissipation air outlet, thereby increasing the contact area between the cooling air flow and the condensation component 3 at the heat dissipation air outlet, and improving the condensation effect; at the same time, this arrangement can reduce the overall size of the heat dissipation air cavity 24 while ensuring the vertical length of the heat dissipation air outlet to ensure the setting size of the condensation component 3, thereby reducing the overall size of the fan cover 21 and reducing the cost and weight.

[0075] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the condensation assembly 3 includes a radiator 31 and a condensation tube 32. The radiator 31 includes a plurality of heat dissipation fins 311 arranged in sequence along the axial direction of the output shaft 111, and a vertical ventilation channel is formed between two adjacent heat dissipation fins 311. The ventilation channel is directly connected to the heat dissipation outlet. The radiator 31 is installed on the fan cover 2; the condensation tube 32 includes a plurality of condensation sections arranged in sequence from top to bottom, and two adjacent condensation sections are connected by an outer tube section, so that the condensation tube 32 forms a serpentine bending structure. Each condensation section passes through the heat dissipation fin 311, and a steam inlet is formed at the upper end of the condensation section. The steam inlet is connected to the cooking cavity, and the curved tube section is located on the outer side of the radiator 31.

[0076] The above-mentioned arrangement makes the arrangement direction of the cooling fins 311 of the radiator 31 the same as the axial direction of the output shaft 111, which is beneficial to realize the connection between the heat dissipation outlet and the ventilation channel, and is beneficial to further reduce the axial size of the condensation component 3 on the output shaft 111, thereby improving the overall structural compactness of the condensation heat dissipation device 100; at the same time, since the condenser tube 32 is bent from top to bottom, the condensed water formed by the condensation of hot steam in the condenser tube 32 can drip downward under the action of gravity, which is beneficial to realize the discharge and recovery of the condensed water, and also avoids the accumulation of condensed water in the condenser tube 32.

[0077] To achieve the installation of the radiator 31, the radiator 31 also includes a first mounting plate 312 and a second mounting plate 313 which are relatively arranged along the axial direction of the output shaft 111, all the heat dissipation fins 311 are located between the first mounting plate 312 and the second mounting plate 313, the condensation section passes through the first mounting plate 312 and the second mounting plate 313, and the first mounting plate 312 is detachably connected to the fan cover 21, and the second mounting plate 313 is detachably connected to the outer air duct plate 22, thereby ensuring that the radiator 31 is effectively fastened at both ends of the axial direction of the output shaft 111, ensuring the installation stability and reliability of the radiator 31 in the fan cover 2.

[0078] A positioning groove 2112 is provided on the side of the fan cover 21 facing away from the outer air duct plate 22, and one side of the first mounting plate 312 is accommodated in the positioning groove 2112 and fastened to the bottom of the positioning groove 2112, thereby enabling the first mounting plate 312 to be installed and positioned on the fan cover 21, thereby enabling the radiator 31 to be installed and positioned on the fan cover 2, thereby ensuring the relative position accuracy of the fan assembly 1 and the condensation assembly 3, thereby better ensuring the condensation effect.

[0079] The second mounting plate 313 is a U-shaped structure with an opening facing away from the first mounting plate 312. The heat dissipation fins 311 are located between the bottom of the U-shaped structure and the first mounting plate 312. Both ends of the U-shaped structure are connected to the outer air duct plate 22. Since the second mounting plate 313 is a U-shaped structure, the second mounting plate 313 can be fastened to the outer air duct plate 22. A space is formed between the second mounting plate 313 and the outer air duct plate 22, which can be used to avoid the curved section of the condensing pipe 32, thereby further reducing the axial dimension of the condensing heat dissipation device 100 in the output shaft 111 and avoiding interference between structures. Furthermore, both ends of the second mounting plate 313 are fastened to the outer air duct plate 22 using screws to ensure the installation stability of the radiator 31.

[0080] Furthermore, a first avoidance hole 2211 is provided on the outer air duct plate 22, and the curved pipe section facing the side of the outer air duct plate 22 is located in the first avoidance hole 2211, thereby avoiding interference between the condensation pipe 32 and the fan cover 2, thereby improving the compactness of the structure.

[0081] In order to further improve the condensation effect of the condensation assembly 3, at least two condensation tubes 32 are arranged side by side along the width direction of the radiator 31, and both condensation tubes 32 are connected to the cooking cavity, so that the steam volume of a single condensation tube 32 can be reduced, thereby improving the effect of steam condensation. The number of condensation tubes 32 can be 2, 3 or 4.

[0082] In order to collect condensed water, a water collecting box 5 is provided below the condensation assembly 3, a water collecting chamber is provided in the water collecting box 5, and the lower end of the condensation channel is connected to the water collecting chamber. Thus, the condensed water condensed in the condensation tube 32 flows along the condensation tube 32 into the water collecting chamber under the action of gravity, so that the condensed water is recovered and cleaned.

[0083] Furthermore, the lower end of the condenser tube 32 is inserted into the water collecting box 5 to ensure that the water in the condenser tube 32 can flow smoothly into the water collecting box 5. The upper end of the water collecting box 5 is provided with an overflow port, so that the gas in the condenser tube 32 can enter the water collecting box 5 and then overflow outward through the overflow port, thereby preventing the air pressure in the water collecting box 5 from being too high and affecting the safety of use.

[0084] In this embodiment, the evaporation module includes a steam generator and a water tank 300. The water tank 300 is provided with a separate water supply chamber and a waste water chamber. The water supply chamber is used to supply water to the steam generating device. The water collecting box 5 is connected to the waste water chamber through a drain pipe 6, so as to collect and clean the condensed water without disassembling the water collecting box 5. The arrangement of the water tank 300 and the steam generator can refer to the prior art, and will not be limited or elaborated on this time.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A condensation heat dissipation device, characterized in that: include: The fan cover (2) has a heat dissipation air inlet (2111), a heat dissipation air cavity (24) and a heat dissipation air outlet which are connected in sequence; A fan assembly (1), comprising a heat dissipation impeller (12), a spoiler impeller (13) and a driving motor (11) mounted on the fan cover (2), the heat dissipation impeller (12) and the spoiler impeller (13) being coaxially and spaced apart from each other on an output shaft (111) of the driving motor (11), the spoiler impeller (13) being located outside the fan cover (2), the heat dissipation air inlet (2111) being arranged on a side of the fan cover (2) away from the spoiler impeller (13), the heat dissipation impeller (12) being located in the heat dissipation air cavity (24) and being arranged opposite to the heat dissipation air inlet (2111), and the heat dissipation air outlet being located on the side of the heat dissipation impeller (12) in the radial direction; A condensation component (3) is installed at the heat dissipation outlet and has a condensation channel for passing steam.

2. The condensation and heat dissipation device according to claim 1, characterized in that: The fan cover (2) has a partition cavity (25), and the spoiler impeller (13), the partition cavity (25) and the heat dissipation impeller (12) are arranged in sequence along the axial direction of the output shaft (111); And / or, a shaft through hole is provided on a side of the fan cover (2) away from the heat dissipation air inlet (2111), the output shaft (111) passes through the shaft through hole, and a sealing structure is provided between the hole wall of the shaft through hole and the outer side wall of the output shaft (111).

3. The condensation and heat dissipation device according to claim 2, characterized in that: The sealing structure comprises a shaft sleeve (14) sleeved on the output shaft (111) and a sealing ring (4) sleeved between the outer side of the shaft sleeve (14) and the wall of the hole through which the shaft is penetrated, wherein the shaft sleeve (14) and the sealing ring (4) are rotatably sealed.

4. The condensation and heat dissipation device according to claim 3, characterized in that: The sealing ring (4) comprises a mounting ring portion (41) and a sealing ring portion (42) coaxially connected to the inner side of the mounting ring portion (41); the thickness of the mounting ring portion (41) is greater than the thickness of the sealing ring portion (42); an annular slot is provided on the outer side wall of the mounting ring portion (41); the edge of the shaft through-hole is inserted into the annular slot; and the shaft sleeve (14) rotates through the sealing ring portion (42).

5. The condensation and heat dissipation device according to claim 2, characterized in that: A side of the fan cover (2) away from the heat dissipation air inlet (2111) is recessed in a direction toward the partition cavity (25) to form a concave cavity (2311), and the spoiler impeller (13) is located in the concave cavity (2311).

6. The condensation and heat dissipation device according to claim 2, characterized in that: The fan cover (2) comprises a fan cover (21), an outer air duct plate (22) and an inner air duct plate (23) which are separately arranged; the fan cover (21) is connected to the outer air duct plate (22) and together form the heat dissipation air cavity (24); the fan cover (21) is provided with the heat dissipation air inlet (2111); the outer air duct plate (22) and the inner air duct plate (23) are connected and together form the partition cavity (25); and the drive motor (11) is mounted on the fan cover (21).

7. The condensation and heat dissipation device according to any one of claims 1 to 6, characterized in that: The motor housing (112) of the driving motor (11) extends out of the outside of the fan cover (2) through the heat dissipation air inlet (2111); And / or, the height of the heat dissipation air cavity (24) in the vertical direction tends to gradually increase from the heat dissipation impeller (12) to the heat dissipation air outlet.

8. The condensation and heat dissipation device according to any one of claims 1 to 6, characterized in that: The fan hood (2) comprises an outer air duct plate (22) and a fan cover (21) which enclose the heat dissipation air cavity (24); on a projection plane perpendicular to the output shaft (111), the projection of the fan cover (21) is located within the projection range of the outer air duct plate (22); the heat dissipation air inlet (2111) is provided on a side of the fan cover (21) away from the outer air duct plate (22); and the condensation component (3) is mounted on the outer air duct plate (22) and is located outside the fan cover (21).

9. The condensation and heat dissipation device according to claim 8, characterized in that: The condensation component (3) comprises: A radiator (31), the radiator (31) comprising a plurality of heat dissipation fins (311) arranged in sequence and at intervals along the axial direction of the output shaft (111), a vertically penetrating ventilation channel being formed between two adjacent heat dissipation fins (311), the ventilation channel being directly connected to the heat dissipation air outlet, and the radiator (31) being mounted on the fan cover (2); The condenser (32) comprises a plurality of condenser sections which are arranged in sequence from top to bottom, and two adjacent condenser sections are connected by a curved pipe section so that the condenser (32) forms a serpentine structure, and each of the condenser sections passes through all of the heat dissipation fins (311), and a steam inlet is formed at the upper end of the condenser (32).

10. The condensation and heat dissipation device according to claim 9, characterized in that: The radiator (31) further comprises a first mounting plate (312) and a second mounting plate (313) which are arranged opposite to each other along the axial direction of the output shaft (111); all the heat dissipation fins (311) are located between the first mounting plate (312) and the second mounting plate (313); the condensation section passes through the first mounting plate (312) and the second mounting plate (313); the first mounting plate (312) is detachably connected to the fan cover (21); and the second mounting plate (313) is detachably connected to the outer air duct plate (22).

11. The condensation and heat dissipation device according to claim 10, characterized in that: A positioning groove (2112) is provided on the side of the fan cover (21) facing away from the outer air duct plate (22), and one side of the first mounting plate (312) is accommodated in the positioning groove (2112) and is fastened to the bottom of the positioning groove (2112).

12. The condensation and heat dissipation device according to claim 10, characterized in that: The second mounting plate (313) is in a U-shaped structure with an opening facing away from the first mounting plate (312); the heat dissipation fins (311) are located between the bottom of the U-shaped structure and the first mounting plate (312); and both ends of the U-shaped structure are connected to the outer air duct plate (22); And / or, the curved pipe section is located outside the radiator (31), the outer air duct plate (22) is provided with a first avoidance hole (2211), and the curved pipe section facing the side of the outer air duct plate (22) is located in the first avoidance hole (2211).

13. The condensation heat dissipation device according to claim 9, characterized in that: At least two condensing tubes (32) are arranged side by side along the width direction of the radiator (31).

14. The condensation heat dissipation device according to any one of claims 1 to 6, characterized in that: A water collecting box (5) is arranged below the condensation component (3), the water collecting box (5) having a water collecting cavity, and the lower end of the condensation channel is in communication with the water collecting cavity.

15. A cooking device, comprising an inner pot (200) having a cooking cavity, characterized in that: It also includes a condensation and heat dissipation device as described in any one of claims 1 to 14, wherein the fan cover (2) is installed on the outside of the inner pot (200), and the spoiler impeller (13) is located between the fan cover (2) and the outer wall of the inner pot (200), and a plurality of air flow holes are provided on the side wall of the cooking cavity facing the spoiler impeller (13).

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