Condensation structure, upper cover assembly and cooking utensil

Abstract

The utility model discloses a condensation structure, upper cover subassembly and cooking utensil relates to household electrical appliance technical field, condensation structure is applied to the cooking utensil, the cooking utensil is equipped with cooking chamber, condensation structure includes cooling main part and fan, cooling main part is equipped with steam inlet, steam outlet and reflux inlet, steam inlet and reflux inlet are communicated with cooking chamber, and the fan is connected with the fan. The steam outlet is arranged to be communicated with the outside, the cooling main body is further provided with at least one blocking part, the blocking part is at least located between the steam inlet and the backflow port, and the fan is arranged to be used for cooling the cooling main body so as to form condensate water which flows back to the cooking cavity along the backflow port. The utility model aims to increase the condensation area and the condensation time of the condensation structure on the hot steam so as to improve the condensation effect and completely obtain fragrant substances in the hot steam.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a condensation structure, a top cover assembly, and a cooking appliance. Background Technology

[0002] During the cooking process, the steam inside the cooking cavity of cooking appliances is usually released directly into the air. However, research has found that many aromatic substances in ingredients such as rice are also released along with the steam, resulting in the cooked rice lacking aroma.

[0003] To enhance the aroma of rice cooked in a rice cooker, a cooling fan is installed on the lid. By cooling the lid, hot steam condenses on it, producing condensate containing aromatic substances. This condensate is then returned to the cooking cavity to continue cooking the rice.

[0004] However, existing cooking appliances are limited by the size of the lid, resulting in a small contact area between the lid and the steam in the cooking cavity. This also means that the lid has a small condensation area for the hot steam. Furthermore, the small condensation area means that most of the water vapor carrying aroma substances does not have time to condense before being discharged at high speed with the hot steam. This results in a very limited condensation effect on the steam and makes it impossible to completely retain the aroma substances in the hot steam in the form of condensate. Utility Model Content

[0005] The main purpose of this invention is to propose a condensation structure, a top cover assembly, and a cooking appliance, which aims to increase the condensation area and condensation time of the condensation structure for hot steam, thereby improving the condensation effect and completely capturing the aroma substances in the hot steam.

[0006] To achieve the above objectives, this utility model proposes a condensation structure for use in a cooking appliance, wherein the cooking appliance has a cooking cavity, and the condensation structure includes:

[0007] A cooling body is provided with a steam inlet, a steam outlet, and a return outlet. The steam inlet and the return outlet are connected to the cooking cavity. The steam outlet is configured to communicate with the outside. The cooling body also provides at least one blocking part, which is located at least between the steam inlet and the return outlet.

[0008] A fan is configured to cool the cooling unit to form condensate and return it to the cooking chamber via the return port.

[0009] In one embodiment, the steam inlet and the return outlet are spaced apart and located at both ends of the cooling body;

[0010] And / or, the return port is located adjacent to the steam outlet relative to the steam inlet.

[0011] In one embodiment, the cooling body includes a plurality of cooling zones, each of the cooling zones having at least one of the blocking portions to form a cooling channel in each of the cooling zones.

[0012] In one embodiment, each of the cooling zones is located between the steam inlet and the return outlet;

[0013] And / or, each of the cooling zones is located on both sides of the line connecting the steam inlet and the return outlet;

[0014] And / or, the condensation structure includes a plurality of the fans, each fan corresponding to a cooling zone.

[0015] In one embodiment, the cooling body is further provided with a flow guide groove, which is located on the bottom wall of the cooling channel, and the flow guide groove and the return port are located on the same side of the cooling body.

[0016] In one embodiment, the condensation structure further includes a reflux section, wherein the reflux section is provided with a reflux channel;

[0017] One end of the reflux channel is connected to the steam outlet and the reflux port, and the other end of the reflux channel is connected to the cooking chamber.

[0018] In one embodiment, the condensation structure further includes a bubble-breaking section, which is detachably connected to the cooling body;

[0019] And / or, the reflux section is detachably connected to the cooling body.

[0020] In one embodiment, the reflux channel is provided with a reflux inlet and a reflux outlet, the reflux inlet is connected to the steam outlet and the reflux outlet, and the reflux outlet is connected to the cooking cavity;

[0021] The cross-sectional area of ​​the reflux outlet is smaller than the cross-sectional area at the point where the steam inlet channel connects to the cooking cavity.

[0022] In one embodiment, the projections of the reflux port and the steam outlet onto the reflux inlet are spaced apart from each other;

[0023] And / or, the sum of the areas projected from the reflux port and the steam outlet onto the reflux inlet is less than the cross-sectional area of ​​the reflux inlet.

[0024] In one embodiment, the cross-sectional area of ​​at least a portion of the return channel is gradually reduced from the return inlet to the return outlet.

[0025] In one embodiment, at least a portion of the sidewall of the return channel forms an angle greater than or equal to 30 degrees with the horizontal plane;

[0026] And / or, the cooking appliance further includes a one-way valve, the one-way valve being disposed in the reflux channel, the one-way valve being configured to connect the reflux port to the cooking chamber in one direction.

[0027] In one embodiment, the cooling body includes:

[0028] Cover plate; and

[0029] A base, a cover plate is disposed on the base, the cover plate and the base enclose a cooling cavity, and a blocking part is disposed in the cooling cavity.

[0030] In one embodiment, the cooling body further includes a plurality of heat sinks, each of which is arranged in parallel and spaced apart on the side of the base facing away from the cover plate;

[0031] The fan is configured corresponding to the heat sink.

[0032] In one embodiment, the fan is located on the side of the cooling body along the direction of the cover plate surface;

[0033] And / or, the fan is located at the bottom of the cover plate of the cooling body in the thickness direction;

[0034] And / or, the air inlet of the fan is oriented toward the heat sink, and the ratio of the air inlet area of ​​the fan to the projected area of ​​the heat sink onto the base is greater than or equal to one-third.

[0035] In one embodiment, the spacing between adjacent heat sinks is greater than or equal to 4 millimeters;

[0036] And / or, the height of the heat sink protruding from the base is greater than or equal to 5 mm;

[0037] And / or, the blocking part is provided with a cooling channel, the length of which is greater than or equal to 500 mm;

[0038] And / or, the blocking part is provided with a cooling channel, the cross-sectional area of ​​the cooling channel being greater than or equal to 10 square millimeters and less than or equal to 50 square millimeters;

[0039] And / or, the cooling body further includes a sealing shell located between the cover plate and the base, and sealing the opening of the cooling chamber.

[0040] This utility model also proposes a top cover assembly, the top cover assembly comprising:

[0041] Cover; and

[0042] As described above, the condensation structure is detachably connected to the cover.

[0043] This utility model also proposes a cooking utensil, the cooking utensil comprising:

[0044] The pot body; and

[0045] As described above, the top cover assembly is connected to the pot body.

[0046] This utility model discloses a condensing structure applied to a cooking appliance. The cooking appliance has a cooking cavity, and the condensing structure includes a cooling body and a fan. The cooling body has a steam inlet, a steam outlet, and a return outlet. The steam inlet and the return outlet are connected to the cooking cavity. The return outlet is configured to return condensate, and the steam outlet is configured to communicate with the outside. The cooling body also has at least one blocking part, which is located at least between the steam inlet and the steam outlet. The fan is configured to cool the cooling body. By setting the blocking part between the steam inlet and the steam outlet, steam is prevented from flowing directly from the steam inlet to the steam outlet, thereby increasing the steam flow from the steam inlet to the return outlet. The flow path between the steam and the cooling unit is optimized to increase the condensation area and time of the steam, thereby improving the condensation effect and fully capturing the aroma substances in the hot steam. At the same time, the baffle section allows the steam to form condensate in the channel formed by the baffle section, which limits the flow direction of the condensate. This allows the steam to push the condensate along the channel to the return port. On the one hand, the condensate can be quickly returned to the cooking cavity. On the other hand, during the process of the steam pushing the condensate to flow, the uncondensed aroma substances in the steam can continue to dissolve in the condensate, thus improving the ability to capture the aroma substances in the steam. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0048] Figure 1 This is an exploded view of the condensation structure in one embodiment of the present invention;

[0049] Figure 2 This is a cross-sectional schematic diagram of the condensation structure in one embodiment of the present invention;

[0050] Figure 3 This is an exploded view of the cooling body in one embodiment of the present invention;

[0051] Figure 4 This is a cross-sectional schematic diagram of the cooling body in one embodiment of the present invention;

[0052] Figure 5This is a cross-sectional schematic diagram of the cooling body from another perspective in one embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the structure of a cooking utensil in one embodiment of the present invention;

[0054] Figure 7 This is a cross-sectional schematic diagram of a cooking utensil in one embodiment of the present invention;

[0055] Figure 8 This is a partially exploded view of a cooking utensil in one embodiment of the present invention.

[0056] Explanation of icon numbers:

[0057] 100. Condensation structure; 1. Cooling body; 1a. Cooling zone; 11. Cover plate; 12. Base; 13. Cooling chamber; 14. Steam inlet; 15. Steam outlet; 16. Return outlet; 17. Baffle; 171. Cooling channel; 1711. Channel unit; 1712. Straight section; 1713. Curved section; 18. Heat sink; 19. Sealing shell; 3. Fan; 4. Upper shell; 4a. Placement chamber; 5. Lower shell; 6. Bubble breaking section; 61. Steam inlet channel; 7. Return section; 71. Return channel; 711. Return inlet; 712. Return outlet; 800. Top cover assembly; 801. Cover body; 900. Cooking utensil; 901. Pot body; 902. Cooking chamber.

[0058] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0059] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0060] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0061] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0062] Please refer to Figures 1 to 8 As shown, this utility model proposes a condensation structure 100, which is applied to a cooking appliance 900. The cooking appliance 900 is provided with a cooking cavity 902. The condensation structure 100 includes a cooling body 1 and a fan 3. The cooling body 1 is provided with a steam inlet 14, a steam outlet 15 and a return outlet 16. The steam inlet 14 and the return outlet 16 are connected to the cooking cavity 902. The steam outlet 15 is configured to communicate with the outside. The cooling body 1 is also provided with at least one blocking part 17. The blocking part 17 is located at least between the steam inlet 14 and the return outlet 16. The fan 3 is configured to cool the cooling body 1 to form condensate and return it to the cooking cavity 902 along the return outlet 16.

[0063] In this embodiment, as Figures 6 to 8 As shown, the condensing structure 100 is applied in a cooking appliance 900, which includes, but is not limited to, a rice cooker, a pressure rice cooker, an electric soup pot, an electric medicine pot, and an electric clay pot. The cooking appliance 900 is provided with a cooking cavity 902, and the condensing structure 100 is provided at the opening of the cooking cavity 902 or in a channel connected to the cooking cavity 902, so as to condense the steam escaping from the cooking cavity 902 and obtain condensed water containing aromatic substances in the steam.

[0064] In this embodiment, the condensing structure 100 includes a cooling body 1 and a fan 3. The cooling body 1 is the main structure of the condensing structure 100. The cooling body 1 can be a tubular structure, a shell structure, a box structure, or other container or cavity structure with at least partial closure. The cooling body 1 is provided with a steam inlet 14 and a steam outlet 15. The steam inlet 14 is connected to the cooking cavity 902, and the steam outlet 15 is connected to the external space. The steam inlet 14 and the steam outlet 15 can be located on both sides or at both ends of the cooling body 1, so that after the food in the cooking cavity 902 boils due to heating, the generated hot steam can enter from the steam inlet 14 and exit from the steam outlet 15, forming a steam flow path. At the same time, a channel or chamber for steam flow can be formed inside the cooling body 1, so that the steam first enters the channel or chamber formed by the cooling body 1 from the steam inlet 14 and then exits from the steam outlet 15. This is not limited here.

[0065] In this embodiment, the cooling body 1 is further provided with a return port 16 and a fan 3. The return port 16 connects the cooking cavity 902 and the channel or chamber formed inside the cooling body 1. The fan 3 can perform air cooling on the cooling body 1 to cool the hot steam passing through the cooling body 1, causing the hot steam to form condensate containing aromatic substances. The condensate flows back from the return port 16 into the cooking cavity 902 to achieve the condensation of the hot steam. Furthermore, a one-way valve can be provided at the return port 16, and the one-way valve is configured to be one-way. The return port 16 is connected to the cooking chamber 902 to prevent steam from flowing back from the cooking chamber 902 into the cooling body 1. The fan 3 is located outside the cooling body 1, such as at the bottom or side of the cooling body 1 near the cooking chamber 902, to cool the steam flow path from the steam inlet 14 to the steam outlet 15 and to collect condensate. The fan 3 can be integrated with the cooling body 1 or it can be separate from the cooling body 1, such as the fan 3 being installed on the upper cover structure of the cooking appliance 900. This is not limited here.

[0066] At the same time, such as Figures 2 to 5 As shown, the cooling body 1 is also provided with at least one blocking part 17. The blocking part 17 is a physical barrier structure located between the steam inlet 14 and the return port 16. The blocking part 17 can be a fixed baffle, barrier wall, or rib structure, or a mesh structure, etc. It can also be an adjustable baffle, etc., which is not limited here.

[0067] It is understandable that a baffle 17 is provided between the steam inlet 14 and the return port 16 to prevent steam from flowing directly from the steam inlet 14 to the return port 16, thereby allowing the steam to flow within the chamber or channel formed by the cooling body 1. This increases the steam flow path from the steam inlet 14 to the return port 16, thus guiding the steam flow more orderly and increasing the residence time of the steam within the cooling body 1. At the same time, with the increase in the flow path, the steam flow area also increases accordingly, thereby improving the condensation efficiency of the fan 3 on the cooling body 1 and the steam located within the cooling body 1, and enabling more complete acquisition of the aroma substances in the steam, allowing these aroma substances to flow back from the return port 16 to the cooking chamber 902.

[0068] Furthermore, the blocking part 17 can be located between the steam inlet 14 and the return port 16, or it can be located in the area on both sides of the line connecting the steam inlet 14 and the return port 16, thereby further increasing the separation of the internal space of the cooling body 1 by the blocking part 17, so as to further increase and optimize the flow path of hot steam, and maximize the contact area between steam and the inner wall of the cooling body 1, thereby improving the condensation effect.

[0069] The condensing structure 100 of this utility model is applied to a cooking appliance 900, which has a cooking cavity 902. The condensing structure 100 includes a cooling body 1, a one-way valve, and a fan 3. The cooling body 1 has a steam inlet 14, a steam outlet 15, and a return outlet 16. The steam inlet 14 and the return outlet 16 are connected to the cooking cavity 902. The return outlet 16 is configured to return condensate, and the steam outlet 15 is configured to communicate with the outside. The cooling body 1 also has at least one blocking part 17, which is located at least between the steam inlet 14 and the steam outlet 15. The one-way valve is located at the return outlet 16 and is configured to connect the return outlet 16 to the cooking cavity 902 in one direction. The fan 3 is configured to cool the cooling body 1. A baffle 17 is provided to prevent steam from flowing directly from the steam inlet 14 to the steam outlet 15, thereby increasing the flow path of steam from the steam inlet 14 to the return port 16. This increases the condensation area and condensation time of the steam in the cooling body 1 by the fan 3, improving the condensation effect and ensuring complete extraction of aroma substances from the hot steam. At the same time, the baffle 17 allows steam to form condensate in the channel formed by the baffle 17, limiting the flow direction of the condensate. This allows the steam to push the condensate along the channel to the return port, enabling the condensate to quickly return to the cooking cavity 902. Furthermore, during the process of the steam pushing the condensate, uncondensed aroma substances in the steam continue to dissolve in the condensate, enhancing the ability to extract aroma substances from the steam.

[0070] In one embodiment, such as Figure 5 As shown, the steam inlet 14 and the return outlet 16 are spaced apart and located at both ends of the cooling body 1.

[0071] In this embodiment, the steam inlet 14 is located on one side or one end of the cooling body 1, and preferably on the side of the cooling body 1 facing the cooking cavity 902, so that the steam inlet 14 can be connected to the cooking cavity 902 and hot steam can quickly enter the space inside the cooling body 1 through the steam inlet 14. At the same time, the return port 16 and the steam outlet 15 can be arranged at intervals from the steam inlet 14 and located on the side or one end of the cooling body 1 away from the steam inlet 14. Preferably, the steam outlet 15 is located on the side of the cooling body 1 away from the cooking cavity 902, so that the hot steam at a higher temperature can naturally evaporate and be discharged from the steam outlet 15.

[0072] It is understandable that by setting the steam inlet 14 and the return outlet 16 at intervals and at both ends or sides of the cooling body 1, the distance between the steam inlet 14 and the return outlet 16 and the space between them can be increased. This makes it easier to set the blocking part 17 between the steam inlet 14 and the return outlet 16 and extend the flow path of steam from the steam inlet 14 to the return outlet 16. This increases the condensation area and condensation time of the steam in the cooling body 1 by the fan 3, thereby improving the condensation effect and completely capturing the aroma substances in the hot steam.

[0073] Optionally, the return port 16 is positioned adjacent to the steam outlet 15 relative to the steam inlet 14. It is understood that after the fan 3 cools the cooling body 1, some of the steam entering the internal space of the cooling body 1 is condensed to form condensate containing aromatic substances. This condensate flows back to the cooking chamber 902 along the return port 16 to continue cooking, thereby enhancing the aroma of ingredients such as rice. Furthermore, by positioning the return port 16 adjacent to the steam outlet 15, after condensate is formed, the steam can also push the condensate located at the bottom of the internal space of the cooling body towards the return port 16 along the steam flow path from the steam inlet 14 to the steam outlet 15, achieving rapid condensate return and synchronous flow of steam and condensate. Moreover, based on the characteristic that aromatic substances are more soluble in water, uncondensed aromatic molecules in the hot steam can further dissolve in the condensate during the co-flow of steam and condensate, increasing the degree of aromatic substance acquisition and more completely obtaining the aromatic substances in the hot steam.

[0074] In one embodiment, such as Figures 3 to 5 As shown, the blocking part 17 is provided with a cooling channel 171, one end of which is connected to the steam inlet 14, and the other end of which is connected to the return port 16; the fan 3 is configured to cool the cooling channel 171.

[0075] In this embodiment, the blocking part 17 may have a connecting groove, channel or chamber structure inside to form a cooling channel 171. At the same time, the condensation structure 100 includes at least two blocking parts 17. Two adjacent blocking parts 17 can enclose each other to form a cooling channel 171. The two adjacent blocking parts 17 may be arranged in parallel to form a cooling channel 171 with a uniform cross section from the steam inlet 14 to the steam outlet 15, or they may be arranged at an angle to form a cooling channel 171 with a variable cross section from the steam inlet 14 to the steam outlet 15. No limitation is made here.

[0076] One end of the cooling channel 171 is connected to the steam inlet 14, and the other end of the cooling channel 171 is connected to the return outlet 16. Meanwhile, the fan 3 is set at the position of the cooking appliance 900 or the cooling body 1 corresponding to the cooling channel 171, such as the bottom wall of the cooling channel 171, to cool the cooling channel 171 and condense the hot steam in the cooling channel 171.

[0077] It is understandable that the cooling channel 171 formed by the blocking part 17 can be a closed channel or an open channel. The cooling channel 171 can guide the orderly flow of steam and make the hot steam flow from the steam inlet 14 to the steam outlet 15 along the cooling channel 171, effectively improving the steam flow path and extending the condensation time and condensation area of ​​the steam by the fan 3. Furthermore, by setting the cooling channel 171, while condensate has already formed inside the cooling channel 171, the condensate is located at the bottom of the cooling channel 171 (that is, the bottom in the direction of gravity). The aroma substances that are still retained in the steam are easily dissolved in the condensate in this part, further improving the extraction of aroma substances in the steam and improving the effect of obtaining aroma substances.

[0078] In one embodiment, such as Figure 5 As shown, the cooling body 1 includes multiple cooling zones 1a, each cooling zone 1a being located between the steam inlet 14 and the steam outlet 15; each cooling zone 1a is provided with at least one blocking part 17 to form a cooling channel 171 in each cooling zone 1a.

[0079] It is understood that the cooling body 1 has multiple cooling zones 1a on one side of the air outlet of the fan 3. These cooling zones 1a can be located between the steam inlet 14 and the steam outlet 15, or on the side of the steam inlet 14 facing away from the steam outlet 15, or on the side of the steam outlet 15 facing away from the steam inlet 14; there are no specific limitations. Each cooling zone 1a has at least one blocking part 17 to form a cooling channel 171. Multiple cooling zones 1a form multiple cooling channels 171. Each cooling channel 171 connects to the steam inlet 14 and the return port 16, allowing the hot steam entering from the steam inlet 14 to circulate in the multiple cooling channels 171 and, after condensation, to return to the cooking cavity 902 through the return port 16. This allows for a more rational planning of the cooling zones 1a and the positions of the cooling channels 171 within them, maximizing the area occupied by the cooling channels 171 at the air outlet of the fan 3. To increase the cooling area of ​​the cooling channel 171 by fan 3, during the boiling stage of the cooking appliance 900, a large amount of steam will rush into the cooling channel 171 in a short period of time. At this time, the pressure inside the cooling channel 171 increases, which increases the flow rate of the steam. The condensation effect of fan 3 is still limited. Based on this, multiple cooling zones 1a are set up, and cooling channels 171 are set up in multiple cooling zones 1a respectively. This can also improve the diversion capacity of the cooling channel 171 for the instantaneous large amount of steam, ensure the stable flow rate of steam in each cooling channel 171, so as to guide the steam flow more orderly and increase the residence time of steam in the cooling body 1. At the same time, with the increase of the flow path, the flow area of ​​steam also increases accordingly, thereby improving the condensation efficiency of fan 3 on the cooling body 1 and the steam in the cooling body 1, and can more completely capture the aroma substances in the steam, and let these aroma substances flow back to the cooking cavity 902 from the return port 16.

[0080] In one embodiment, such as Figure 8 As shown, the condensation structure 100 includes multiple fans 3, each fan 3 corresponding to a cooling zone 1a. It is understood that a single fan 3 has a poor heat dissipation effect on the large cooling channel 171. Therefore, a fan 3 can be set for each cooling zone 1a so that each fan 3 can cool the cooling channel 171 in each cooling zone 1a, thereby improving the cooling and condensation effect of the steam in each cooling channel 171 and enabling more complete extraction of the aroma substances in the steam.

[0081] Optionally, each cooling zone 1a is located between the steam inlet 14 and the return port 16, and on both sides of the line connecting the steam inlet 14 and the return port 16. It can be understood that the cooling zone 1a can be located in the area between the steam inlet 14 and the return port 16, or it can be located on both sides of the line connecting the steam inlet 14 and the return port 16. This is to increase the flow length of the cooling channel 171 by reasonably increasing and arranging the cooling zone 1a, thereby increasing the residence time of steam in the cooling body 1. At the same time, as the flow path increases, the flow area of ​​steam also increases accordingly, thereby improving the condensation efficiency of the fan 3 on the cooling body 1 and the steam located in the cooling body 1, and being able to more completely obtain the aroma substances in the steam.

[0082] In one embodiment, such as Figures 3 to 5 As shown, the blocking part 17 includes multiple channel units 1711, which are arranged in parallel and adjacent channel units 1711 are interconnected; the multiple channel units 1711 are connected in sequence to form a cooling channel 171.

[0083] In this embodiment, the channel unit 1711 can be a pipe structure, channel structure, cavity structure, or tank structure, etc. Multiple channel units 1711 are interconnected to form a cooling channel 171. The multiple channel units 1711 are arranged in parallel, and adjacent channel units 1711 can be spaced apart or abutted. One end of the channel unit 1711 is connected to an adjacent channel unit 1711, connecting the two channel units 1711; the other end of the channel unit 1711 is connected to another adjacent channel unit 1711, connecting the two channel units 1711. This allows the multiple channel units 1711 to be connected and communicated in sequence, and the entire cooling channel 171 is arranged in a serpentine pattern in the cooling body 1.

[0084] It is understandable that by setting multiple channel units 1711, the structure and extension path of the cooling channel 171 can be reasonably arranged to increase the steam flow path from the steam inlet 14 to the steam outlet 15, thereby guiding the steam flow more orderly and increasing the residence time of the steam in the cooling body 1. At the same time, with the increase of the flow path, the steam flow area also increases accordingly, thereby improving the condensation efficiency of the fan 3 on the cooling body 1 and the steam located in the cooling body 1, and being able to more completely obtain the aroma substances in the steam, and allowing these aroma substances to flow back from the return port 16 to the cooking cavity 902.

[0085] In one embodiment, such as Figure 5 As shown, each channel unit 1711 includes a straight segment 1712 and two arc segments 1713, with the arc segments 1713 located at both ends of the straight segment 1712; the arc segments 1713 of two adjacent channel units 1711 are connected to each other.

[0086] It is understood that the straight segment 1712 is a channel unit 1711 extending along a straight line, and the arc segment 1713 is a channel unit 1711 extending along an arc. The straight segment 1712 and the arc segment 1713 can be a pipe structure, a channel structure, a cavity structure, or a tank structure, etc. Each arc segment 1713 is located at one end of a straight segment 1712, and two arc segments 1713 are located at both ends of a straight segment 1712. The arc segments 1713 of two adjacent channel units 1711 are connected to each other, so that the two channel units 1711 are interconnected. The straight segments 1712 of two adjacent channel units 1711 are arranged in parallel to each other, so that the entire cooling channel 171 is arranged in a meandering manner, which improves the steam flow path and flow area.

[0087] In one embodiment, the cooling body 1 is further provided with a guide channel, which is located on the bottom wall of the cooling channel 171, and the guide channel and the return port 16 are located on the same side of the cooling body 1.

[0088] In this embodiment, a guide groove is provided on the bottom wall of the cooling channel 171, that is, at the bottom of the cooling channel 171 along the direction of gravity. That is, the guide groove can be provided on the cooling body 1 or on the guide groove. At the same time, the guide groove extends along the cooling channel 171. The guide groove can be connected to the return port 16 or isolated from the return port 16, and the distance from the bottom wall of the guide groove to the cooking cavity 902 is less than the distance from the return port 16 to the cooking cavity 902.

[0089] It is understandable that the guide channel and the return port 16 are located on the same side of the cooling body 1, that is, on the side of the cooling body 1 facing the cooking cavity 902. When the guide channel and the return port 16 are connected, the condensate in the guide channel will flow directly back to the cooking cavity 902 through the return port 16. When the guide channel and the return port 16 are isolated, after a certain amount of condensate accumulates in the guide channel and overflows from the guide channel, the condensate flows from the cooling channel 171 to the return port 16 to flow back to the cooking cavity 902. By setting the guide channel, after condensate is formed in the cooling channel 171, a small amount can accumulate in the guide channel, so that the aroma substances still retained in the steam can continue to dissolve in the small amount of condensate accumulated in the guide channel, avoiding the condensate from quickly flowing back to the return port 16 through the cooling channel 171, and further improving the extraction ability of aroma substances in the steam.

[0090] In one embodiment, the condensation structure 100 further includes a bubble-breaking section 6 and a reflux section 7. The bubble-breaking section 6 is provided with a steam inlet channel 61, which connects the cooking chamber 902 and the steam inlet 14. The reflux section 7 is provided with a reflux channel 71, one end of which connects the steam outlet 15 and the reflux outlet 16, and the other end of which connects the cooking chamber 902.

[0091] In this embodiment, the bubble-breaking section 6 is connected to the cooling body 1, and the bubble-breaking section 6 can be disposed between the cooling body 1 and the cooking cavity 902. The bubble-breaking section 6 is provided with a steam inlet channel 61. One end of the steam inlet channel 61 is connected to the steam inlet 14 of the cooling body 1, and the other end of the steam inlet channel 61 is connected to the cooking cavity 902, so that the steam in the cooking cavity 902 can enter the cooling channel 171 of the cooling body 1 through the steam inlet channel 61 of the bubble-breaking section 6. At the same time, the return section 7 is also connected to the cooling body 1, and the return section 7 can also be disposed between the cooling body 1 and the cooking cavity 902. The return section 7 is provided with a return channel 71. One end of the return channel 71 is connected to the steam outlet 15 and the return outlet 16, and the other end of the return channel 71 is connected to the cooking cavity 902, so as to return the condensate with aroma substances obtained in the cooling body 1 to the cooking cavity 902.

[0092] It is understandable that the steam in the cooking cavity 902 will enter the cooling body 1 through the steam inlet channel 61 of the bubble-breaking section 6, so as to cool the steam in the cooling channel 171 by the fan 3 and obtain condensed water with aroma substances. The bubble-breaking section 6 is used to break the foam generated during the cooking process to prevent the food inside the cooking cavity 902 from bringing the foam into the steam inlet channel 61 and the cooling channel 171 during the boiling process. The bubble-breaking section 6 is provided with baffles or fans 3 on the inner wall of the steam inlet channel 61 for breaking the foam and preventing overflow, so as to actively or passively puncture the foam, achieve the purpose of breaking the foam and preventing overflow, and avoid the foam that rushes into the steam inlet channel 61 and the cooling channel 171 with the steam and block the steam inlet channel 61 and the cooling channel 171.

[0093] Meanwhile, one end of the return channel 71 is connected to the steam outlet 15 and the return port 16, so that the condensed water that has been condensed in the cooling channel 171 and has aroma substances falls from the return port 16 and flows into the return channel 71, and then flows back to the cooking cavity 902 through the return channel 71 to participate in cooking again. The uncondensed steam that escapes from the cooling channel 171 flows out from the return port 16 and is discharged from the steam outlet 15, so as to achieve the separation of condensed water and residual steam.

[0094] In one embodiment, the bubble-breaking section 6 is detachably connected to the cooling body 1; optionally, the reflux section 7 is detachably connected to the cooling body 1.

[0095] It is understood that the bubble-breaking section 6 and / or the reflux section 7 are detachably connected to the cooling body 1 to facilitate disassembly, maintenance, replacement, and cleaning of the bubble-breaking section 6 and the reflux section 7. This also facilitates the separation of the cooling body 1 and the cleaning and maintenance of the cooling channel 171, preventing rice paste or food residue from remaining on the cooling body 1, the bubble-breaking section 6, and the reflux section 7, thus ensuring the cleanliness and hygiene of the condensation structure 100 and the overall cooking appliance 900.

[0096] In one embodiment, the reflux channel 71 is provided with a reflux inlet 711 and a reflux outlet 712. The reflux inlet 711 is connected to the steam outlet 15 and the reflux outlet 16, and the reflux outlet 712 is connected to the cooking cavity 902. The cross-sectional area of ​​the reflux outlet 712 is smaller than the cross-sectional area at the connection between the steam inlet channel 61 and the cooking cavity 902.

[0097] Understandably, one end of the reflux channel 71 is the reflux inlet 711, which connects the steam outlet 15 and the reflux port 16. The other end of the reflux channel 71 is the reflux outlet 712, which connects to the cooking cavity 902, so that the condensate flowing out of the reflux port 16 can enter the reflux inlet 711 and flow back into the cooking cavity 902 along the reflux channel 71. The uncondensed steam flowing out of the reflux port 16 is discharged to the external space from the steam outlet 15.

[0098] The cross-sectional area of ​​the return outlet 712 is smaller than the cross-sectional area at the connection between the steam inlet channel 61 and the cooking chamber 902. In other words, the inlet cross-sectional area of ​​steam entering the steam inlet channel 61 from the cooking chamber 902 is larger than the outlet cross-sectional area of ​​condensate returning from the return channel 71 to the cooking chamber 902. This is to ensure that as much steam as possible can enter the steam inlet channel 61 of the bubble breaking section 6 and enter the cooling channel 171, preventing steam from flowing back into the return channel 71 from the return outlet 712. This improves the amount and effect of steam condensation and enhances the effect of condensate returning from the return channel 71 to the cooking chamber 902.

[0099] In one embodiment, the projections of the reflux port 16 and the steam outlet 15 onto the reflux inlet 711 are spaced apart from each other; optionally, the sum of the areas projected onto the reflux inlet 711 by the reflux port 16 and the steam outlet 15 is less than the cross-sectional area of ​​the reflux inlet 711.

[0100] It is understandable that the projections of the return port 16 and the steam outlet 15 onto the return inlet 711 (i.e., the horizontal projections when the cooking appliance 900 is operating) are spaced apart from each other, and both the return port 16 and the steam outlet 15 are located at the end of the cooling channel 171 away from the steam inlet 14. This allows the condensate containing aromatic substances flowing out of the cooling channel 171 to flow out through the return port 16, while the uncondensed steam can simultaneously flow from the return port 16 to the steam outlet 15 and be discharged into the external space. At the same time, the return port 16 and the steam outlet 15 flow back into the return inlet 711. The sum of the projected areas of the inlet 711 should be smaller than the cross-sectional area of ​​the return inlet 711, so that the return inlet 711 can cover or cover the return outlet 16 and the steam outlet 15. This allows the condensed water with aromatic substances and the uncondensed steam to fully enter the return section 7, and reduces the obstruction of steam. This allows the uncondensed steam to be discharged smoothly from the steam outlet 15, and also ensures that the condensed water can smoothly enter the return channel 71 and return to the cooking cavity 902. This avoids the risk of the condensed water being sprayed from the steam outlet 15 to the outside of the cooking appliance 900 under the push of the steam.

[0101] In one embodiment, the cross-sectional area of ​​at least a portion of the return channel 71 is gradually reduced from the return inlet 711 to the return outlet 712.

[0102] Understandably, the cross-sectional area of ​​the return channel 71 gradually decreases in the direction of its extension from the return inlet 711 to the return outlet 712. That is, the cross-sectional area of ​​the return channel 71 gradually decreases from the end connected to the return port 16 and the steam outlet 15 to the end connected to the cooking cavity 902. This allows the condensate to flow quickly along the inclined inner wall of the return channel 71 after entering the return channel 71 from the return port 16 and enter the cooking cavity 902. This not only ensures that the condensate can flow back to the cooking cavity 902 along the return channel 71, reducing the accumulation and residue of condensate, but also increases the return speed of the condensate so that it can quickly re-participate in cooking.

[0103] In one embodiment, at least a portion of the sidewall of the reflux channel 71 has an angle greater than or equal to 30 degrees with the horizontal plane; optionally, the cooking appliance 900 further includes a one-way valve, which is disposed in the reflux channel 71 and is configured to connect the reflux port 16 to the cooking chamber 902 in one direction.

[0104] In one embodiment, such as Figures 1 to 4 As shown, the cooling body 1 includes a cover plate 11 and a base 12. The cover plate 11 is disposed on the base 12, and the cover plate 11 and the base 12 enclose a cooling cavity 13. A blocking part 17 is disposed in the cooling cavity 13.

[0105] It is understood that the cooling body 1 is a shell structure. The cover plate 11 and the base 12 can be integrally formed or separately set and detachably connected, such as the cover plate 11 and the base 12 being snap-fit ​​connected or bolted connected. The base 12 is set on the cover plate 11 structure of the cooking appliance 900. The cover plate 11 and the base 12 enclose a cooling cavity 13. The steam inlet 14 is set on the base 12 and communicates with the cooling cavity 13. The steam outlet 15 is set on the cover plate 11 and communicates with the cooling cavity 13, so that steam can enter the cooling cavity 13 from the steam inlet 14 and be discharged from the steam outlet 15 after being condensed by the fan 3. At the same time, the return port 16 is also set on the base 12 so that after condensation, the condensate can be returned to the cooking cavity 902 through the return port 16. The fan 3 can be set on the side of the base 12 facing away from the cover 801 to cool the base 12.

[0106] Furthermore, the blocking part 17 is provided in the cooling cavity 13. The blocking part 17 may be provided on the cavity wall of the cooling cavity 13 located on the side of the base 12, and the blocking part 17 is spaced apart from the cavity wall of the cover plate 11, so that the cooling channel 171 formed by the blocking part 17 is an open channel; or the blocking part 17 may be provided on the cavity wall of the cooling cavity 13 located on the side of the cover plate 11, and the blocking part 17 is spaced apart from the cavity wall of the base 12, so that the cooling channel 171 formed by the blocking part 17 is an open channel; or the blocking part 17 is provided in the cooling cavity 13 and is simultaneously connected to the cavity wall of the cooling cavity 13 located on the upper cover and the cavity wall of the cooling cavity 13 located on the base 12, so that the blocking part 17 forms a closed cooling channel 171, which is not limited here.

[0107] In one embodiment, such as Figures 1 to 4 As shown, the cooling body 1 also includes multiple heat sinks 18, which are arranged in parallel and spaced apart on the side of the base 12 facing away from the cover plate 11. The fan 3 is arranged corresponding to the heat sinks 18. It can be understood that multiple heat sinks 18 are provided on the side of the base 12 facing away from the cover plate 801. The multiple heat sinks 18 are arranged in parallel and spaced apart. By setting the heat sinks 18, the cooling body 1 can improve its ability to dissipate heat outward, thereby quickly cooling and condensing the hot steam in the cooling chamber 13. In addition, a heat dissipation channel is formed between two parallel and adjacent heat sinks 18, which also facilitates the airflow of the fan 3 to pass quickly along the heat dissipation channel, improving the heat dissipation capacity of the fan 3 on the cooling body 1, thereby improving the condensation effect of the steam and enhancing the ability to obtain the aroma substances in the steam.

[0108] Optionally, the cooling body 1 also includes a sealing shell 19, which is located between the cover plate 11 and the base 12 and seals the opening of the cooling cavity 13. It is understood that the sealing shell 19 is located between the cover plate 11 and the base 12 and is used to seal the connection gap between the cover plate 11 and the base 12 to better seal the cooling cavity 13 and ensure the neat airtightness of the condensation structure 100.

[0109] In one embodiment, the fan 3 is located on the side of the cooling body 1 along the surface direction of the cover plate; optionally, the fan 3 is located at the bottom of the cooling body 1 along the thickness direction of the cover plate; it is understood that the fan 3 can be located on the side of the cooling body 1 along the surface direction of the cover plate to blow airflow into the cooling body 1 from the side and cool and condense the steam in the cooling channel 171, or it can be located at the bottom of the cooling body 1 along the thickness direction of the cover plate to cool and condense the steam in the cooling channel 171 from bottom to top, that is, the specific location of the fan 3 is not limited.

[0110] Optionally, the air inlet of the fan 3 is positioned facing the heat sink 18, and the ratio of the air inlet area of ​​the fan 3 to the projected area of ​​the heat sink 18 onto the base is greater than or equal to one-third. It can be understood that the air inlet of the fan 3 is positioned facing the heat sink 18, and the fan 3 can be positioned in contact with multiple heat sinks 18, so that the airflow first flows through the heat sink 18 before entering the fan 3, carrying away the heat on the heat sink 18 and dissipating it from the air outlet of the fan 3. The ratio of the air inlet area of ​​the fan 3 to the projected area of ​​the heat sink 18 onto the base is greater than or equal to one-third to ensure that the air inlet of the fan 3 occupies a larger portion of the heat sink 18, allowing the fan 3 to carry away more heat from the heat sink 18 and improving the heat dissipation effect on the heat sink 18 and the cooling body 1.

[0111] In one embodiment, the spacing between adjacent heat sinks 18 is greater than or equal to 4 mm; optionally, the height of the heat sink 18 protruding from the base 12 is greater than or equal to 5 mm. It is understood that the spacing between adjacent heat sinks 18 is greater than or equal to 4 mm and the height of the heat sink 18 protruding from the base 12 is greater than or equal to 5 mm, so as to ensure that there is sufficient heat dissipation space between adjacent heat sinks 18, thereby enabling the heat sink 18 to have better heat dissipation capacity, so as to improve the cooperation effect between the fan 3 and the heat sink 18 and improve the condensation effect of steam.

[0112] Optionally, the blocking part 17 is provided with a cooling channel 171, the length of which is greater than or equal to 500 mm; alternatively, the blocking part 17 is provided with a cooling channel 171, the cross-sectional area of ​​which is greater than or equal to 10 square millimeters and less than or equal to 50 square millimeters; it is understood that the cooling channel 171 in the cooling chamber 13 has an extension length of at least 500 mm to ensure the minimum flow length of steam in the cooling channel 171, ensuring that the fan 3 has sufficient time to cool and condense the steam, thereby improving the condensation effect of the steam. At the same time, the cross-sectional area of ​​the cooling channel 171 is greater than or equal to 10 square millimeters and less than or equal to 50 square millimeters. This ensures that the steam flows normally in the cooling channel 171 without being blocked, while also increasing the residence time and area of ​​the steam in the cooling channel 171. This further increases the condensation time and condensation area of ​​the steam by the fan 3, thereby improving the condensation efficiency of the fan 3 on the cooling body 1 and the steam located in the cooling body 1. It also enables the more complete acquisition of the aroma substances in the steam, and allows these aroma substances to flow back from the return port 16 to the cooking cavity 902.

[0113] In one embodiment, such as Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, the condensation structure 100 also includes an upper shell 4, a lower shell 5, and a bubble-breaking section 6. The lower shell 5 and the upper shell 4 are detachably connected. The lower shell 5 and the upper shell 4 enclose a placement cavity 4a. The cooling body 1 is located in the placement cavity 4a. The bubble-breaking section 6 is located in the lower shell 5. The bubble-breaking section 6 is connected to the cooking cavity 902 and the steam inlet 14.

[0114] In this embodiment, the condensing structure 100 also includes an upper shell 4 and a lower shell 5. The upper shell 4 and the lower shell 5 are external support structures of the condensing structure 100. The upper shell 4 and the lower shell 5 enclose a placement cavity 4a for placing the cooling body 1 in the placement cavity 4a. At the same time, the upper shell 4 and / or the lower shell 5 can be installed on the upper cover structure of the cooking appliance 900. The upper shell 4 and the lower shell 5 are detachably connected to facilitate the removal and installation of the cooling body 1 located inside the placement cavity 4a, so as to facilitate the cleaning and replacement of the cooling body 1. Meanwhile, the aforementioned one-way valve is provided in the lower shell 5. The liquid inlet of the one-way valve is connected to the return port 16. Part of the one-way valve can extend into the cooking cavity 902 to guide the condensate water back from the return port 16 to the cooking cavity 902 in one direction.

[0115] In this embodiment, the condensation structure 100 also includes a bubble-breaking section 6, which is located in the lower shell 5 and connects to the steam inlet 14 and the cooking chamber 902. The bubble-breaking section 6 can guide steam to flow unidirectionally from the cooking chamber 902 to the cooling channel 171, preventing steam from flowing back into the cooking chamber 902. At the same time, the bubble-breaking section 6 can also break the foam generated in the cooking chamber 902 due to the boiling of food to prevent overflow, reducing the overflow of foam (such as rice soup).

[0116] This utility model also proposes a top cover assembly 800, such as Figures 6 to 8 As shown, the cover assembly 800 includes a cover body 801 and the aforementioned condensation structure 100, with the condensation structure 100 connected to the cover body 801. The specific structure of the condensation structure 100 is as described in the foregoing embodiments. Since this cover assembly 800 adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, and will not be described in detail here.

[0117] Optionally, the condensing structure 100 is detachably mounted on the cover 801. It can be understood that the condensing structure 100 is detachably connected to the cover 801, such as by means of snap-fit ​​connection, bolt connection, or insertion. That is, the condensing structure 100 is an independently manufactured structural unit that can be separated from the cover 801 to facilitate cleaning and maintenance of the condensing structure 100, ensuring the hygiene of the steam passage, thereby ensuring the hygiene and cleanliness of the liquid water flowing back into the cooking cavity 902.

[0118] This utility model also proposes a cooking utensil 900, such as Figures 6 to 8 As shown, the cooking appliance 900 includes a pot body 901 and the aforementioned lid assembly 800, which is connected to the pot body 901. The specific structure of the lid assembly 800 is as described in the foregoing embodiments. Since the cooking appliance 900 adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be described in detail here.

[0119] Understandably, the cooking appliance 900 can be a pressure rice cooker, an electric soup pot, an electric medicine pot, or an electric clay pot, etc. The pot body 901 includes a base 12, an electric heater disposed on the base 12, and a rice cooker container disposed in the base 12 and sitting on the electric heater. The lid 801 of the upper cover assembly 800 is rotatably hinged to the base 12 at one end, and the other end is fastened to the base 12 by a snap fastener, so that the upper cover assembly 800 can be opened by opening the snap fastener.

[0120] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A condensation structure applied to a cooking appliance, the cooking appliance having a cooking cavity, characterized in that, The condensation structure includes: A cooling body is provided with a steam inlet, a steam outlet, and a return outlet. The steam inlet and the return outlet are connected to the cooking cavity. The steam outlet is configured to communicate with the outside. The cooling body also provides at least one blocking part, which is located at least between the steam inlet and the return outlet. A fan is configured to cool the cooling unit to form condensate and return it to the cooking chamber via the return port.

2. The condensation structure as described in claim 1, characterized in that, The steam inlet and the return outlet are spaced apart and located at both ends of the cooling body; And / or, the return port is located adjacent to the steam outlet relative to the steam inlet.

3. The condensation structure as described in claim 1, characterized in that, The cooling body includes multiple cooling zones, and each cooling zone is provided with at least one of the blocking parts to form a cooling channel in each cooling zone.

4. The condensation structure as described in claim 3, characterized in that, Each of the cooling zones is located between the steam inlet and the return outlet; And / or, each of the cooling zones is located on both sides of the line connecting the steam inlet and the return outlet; And / or, the condensation structure includes a plurality of the fans, each fan corresponding to a cooling zone.

5. The condensation structure as described in claim 3, characterized in that, The cooling body is also provided with a flow guide groove, which is located on the bottom wall of the cooling channel. The flow guide groove and the return port are located on the same side of the cooling body.

6. The condensation structure as described in any one of claims 1 to 5, characterized in that, The condensation structure also includes a reflux section, which is provided with a reflux channel; One end of the reflux channel is connected to the steam outlet and the reflux port, and the other end of the reflux channel is connected to the cooking chamber.

7. The condensation structure as described in claim 6, characterized in that, The condensation structure also includes a bubble-breaking section, which is detachably connected to the cooling body; And / or, the reflux section is detachably connected to the cooling body.

8. The condensation structure as described in claim 6, characterized in that, The reflux channel is provided with a reflux inlet and a reflux outlet. The reflux inlet is connected to the steam outlet and the reflux outlet, and the reflux outlet is connected to the cooking cavity. The cross-sectional area of ​​the reflux outlet is smaller than the cross-sectional area at the point where the steam inlet channel connects to the cooking cavity.

9. The condensation structure as described in claim 8, characterized in that, The projections of the reflux port and the steam outlet onto the reflux inlet are spaced apart from each other; And / or, the sum of the areas projected from the reflux port and the steam outlet onto the reflux inlet is less than the cross-sectional area of ​​the reflux inlet.

10. The condensation structure as described in claim 8, characterized in that, At least a portion of the cross-sectional area of ​​the return channel is set to gradually decrease from the return inlet to the return outlet.

11. The condensation structure as described in claim 10, characterized in that, At least a portion of the sidewalls of the reflux channel have an angle greater than or equal to 30 degrees with the horizontal plane; And / or, the cooking appliance further includes a one-way valve, the one-way valve being disposed in the reflux channel, the one-way valve being configured to connect the reflux port to the cooking chamber in one direction.

12. The condensation structure according to any one of claims 1 to 5, characterized in that, The cooling unit includes: Cover plate; and A base, a cover plate is disposed on the base, the cover plate and the base enclose a cooling cavity, and a blocking part is disposed in the cooling cavity.

13. The condensation structure as described in claim 12, characterized in that, The cooling body also includes multiple heat sinks, each of which is arranged in parallel and spaced apart on the side of the base facing away from the cover plate; The fan is configured corresponding to the heat sink.

14. The condensation structure as described in claim 13, characterized in that, The fan is located on the side of the cooling body along the direction of the cover plate surface; And / or, the fan is located at the bottom of the cover plate of the cooling body in the thickness direction; And / or, the air inlet of the fan is oriented toward the heat sink, and the ratio of the air inlet area of ​​the fan to the projected area of ​​the heat sink onto the base is greater than or equal to one-third.

15. The condensation structure as described in claim 14, characterized in that, The spacing between adjacent heat sinks is greater than or equal to 4 mm; And / or, the height of the heat sink protruding from the base is greater than or equal to 5 mm; And / or, the blocking part is provided with a cooling channel, the length of which is greater than or equal to 500 mm; And / or, the blocking part is provided with a cooling channel, the cross-sectional area of ​​the cooling channel being greater than or equal to 10 square millimeters and less than or equal to 50 square millimeters; And / or, the cooling body further includes a sealing shell located between the cover plate and the base, and sealing the opening of the cooling chamber.

16. A top cover assembly, characterized in that, The upper cover assembly includes: Cover; and The condensation structure as described in any one of claims 1 to 15, wherein the condensation structure is detachably connected to the cover.

17. A cooking utensil, characterized in that, The cooking appliance includes: The pot body; and The top cover assembly as claimed in claim 16, wherein the top cover assembly is connected to the pot body.

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