Upper cover assembly and cooking utensil

Abstract

The utility model discloses an upper cover assembly and a cooking utensil, and relates to the technical field of household appliances, the upper cover assembly is applied to the cooking utensil, the cooking utensil is provided with a cooking cavity, the upper cover assembly comprises a cover body and a rotor, the cover body is provided with a cooling channel and a heat exchange cavity, and the cooling channel is communicated with the heat exchange cavity. The heat exchange cavity is arranged to be communicated with the cooking cavity, the rotor is rotationally arranged on the cover body, the rotor is located at the communication position of the cooling channel and the heat exchange cavity, and the rotor rotates to drive air in the cooling channel into the heat exchange cavity. The utility model aims to obtain condensed water with fragrance molecules by directly contacting and cooling steam through the upper cover assembly, so that the condensation effect is improved, and more fragrance molecules can be obtained.

Description

Technical Field

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

[0002] During the cooking process, steam carries away the aroma molecules of the rice, thus reducing its fragrance. To address this issue, active cooling devices are installed, such as water-cooled devices including water pumps and cooling pipes, or air-cooled devices including electric fans and cooling pipes.

[0003] However, the active cooling device still uses the cooling medium to cool indirectly, and it can never directly contact the water vapor containing fragrance molecules. As a result, a lot of fragrance molecules will still escape with the water vapor, resulting in poor condensation effect on the water vapor and inability to retain the fragrance molecules completely. Utility Model Content

[0004] The main purpose of this invention is to provide a lid assembly and a cooking appliance that allows the lid assembly to directly contact and cool steam to obtain condensed water with aroma molecules, thereby improving the condensation effect and obtaining more aroma molecules.

[0005] To achieve the above objectives, this utility model proposes a top cover assembly for use in a cooking appliance, wherein the cooking appliance has a cooking cavity, and the top cover assembly includes:

[0006] The lid, having a cooling channel and a heat exchange chamber connected together, is configured to communicate with the cooking chamber; and

[0007] The rotor is rotatably mounted on the cover and is located at the connection between the cooling channel and the heat exchange chamber. The rotation of the rotor can drive the air in the cooling channel into the heat exchange chamber.

[0008] In one embodiment, at least a portion of the cooling channels extend along the thickness direction of the cover.

[0009] The heat exchange chamber is located at one end of the cooling channel adjacent to the cooking chamber.

[0010] In one embodiment, the cooling channel includes an inlet section and an outlet section, the inlet section extending along the thickness direction of the cover;

[0011] The outlet section is connected to the heat exchange cavity, and the extension direction of the outlet section is set at an angle to the extension direction of the inlet section.

[0012] In one embodiment, the outlet section and the heat exchange chamber are located in the same plane, and the rotor rotates in one direction only;

[0013] And / or, the side of the outlet section facing away from the inlet section is located in the cooking cavity.

[0014] In one embodiment, the cover assembly further includes at least one guide plate;

[0015] Each of the guide plates and the rotor are spaced apart on the cover along the thickness direction of the cover and located at the connection between the cooling channel and the heat exchange chamber.

[0016] In one embodiment, the cover includes a cover body and a movable cover plate, the cover body being provided with a pressure relief hole, the pressure relief hole communicating with the heat exchange chamber and the external space;

[0017] The movable cover plate is movably disposed on the cover body and covers the pressure relief hole.

[0018] In one embodiment, the movable cover plate includes a fixed end and a movable end, the fixed end being rotatably connected to the cover body, and the movable end abutting against the cover body;

[0019] The movable end can move away from the heat exchange cavity so that the pressure relief hole connects the heat exchange cavity and the external space.

[0020] In one embodiment, the cover further includes an isolation plate, and the cooling channel and the heat exchange chamber are located on both sides of the isolation plate along the extension direction of the plate surface;

[0021] The end of the isolation plate and part of the cover body enclose a cooling air outlet, and the rotor is located at the cooling air outlet.

[0022] In one embodiment, the cover further includes a first baffle, the first baffle and the isolation plate enclosing to form the cooling air outlet;

[0023] The cooling channel and the cooking cavity are located on both sides of the first baffle along the plate surface direction.

[0024] In one embodiment, the cover further includes a second baffle, which is disposed on the cooling channel, and the extension direction of the surface of the second baffle is set at an angle to the extension direction of the cooling channel;

[0025] The end of the second baffle is spaced apart from the side wall of the cooling channel.

[0026] In one embodiment, the cover includes at least two second baffles, each of the second baffles being arranged parallel to each other at intervals along the extension direction of the cooling channel;

[0027] The ends of two adjacent second baffles are positioned facing different sidewalls of the cooling channel.

[0028] In one embodiment, the upper cover assembly further includes a drive member disposed on the cover body, and the rotor is disposed at the output end of the drive member;

[0029] The drive unit is configured to drive the rotor to rotate.

[0030] This utility model also proposes a cooking utensil, the cooking utensil comprising:

[0031] The pot body; and

[0032] As described above, the top cover assembly is connected to the pot body.

[0033] The cover assembly of this utility model is applied to a cooking appliance. The cooking appliance has a cooking cavity, and the cover assembly includes a cover body and a rotor. The cover body has a cooling channel and a heat exchange cavity, and the cooling channel and the heat exchange cavity are connected. The heat exchange cavity is connected to the cooking cavity. The rotor is rotatably mounted on the cover body and is located at the connection between the cooling channel and the heat exchange cavity. After the steam in the cooking cavity enters the heat exchange cavity, the steam drives the rotor to rotate. The rotation of the rotor can simultaneously drive the air in the cooling channel into the heat exchange cavity, so that the cooler air in the cooling channel comes into contact with the hot steam in the heat exchange cavity to cool the hot steam and form condensate, thereby retaining the aroma molecules in the hot steam. The condensate then flows back into the cooking cavity in the form of condensate, enhancing the flavor of the cooked rice. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a schematic diagram of the structure of a cooking utensil in one embodiment of the present invention;

[0036] Figure 2 This is a partial structural schematic diagram of the upper cover assembly in one embodiment of the present invention;

[0037] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0038] Figure 4 This is a partial structural schematic diagram of the upper cover assembly from another perspective in one embodiment of the present invention.

[0039] Explanation of icon numbers:

[0040] 100. Top cover assembly; 1. Cover body; 11. Cover body; 111. Cooling channel; 1111. Inlet section; 1112. Outlet section; 112. Heat exchange chamber; 113. Pressure relief hole; 114. Cooling air outlet; 12. Movable cover plate; 121. Fixed end; 122. Movable end; 13. Support plate; 14. Isolation plate; 15. First baffle; 16. Second baffle; 161. Flow gap; 2. Rotor; 3. Guide plate; 400. Cooking appliance; 401. Pot body; 402. Cooking chamber.

[0041] 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

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Please refer to Figures 1 to 4As shown, this utility model proposes a cover assembly 100, which is applied to a cooking appliance 400. The cooking appliance 400 is provided with a cooking cavity 402. The cover assembly 100 includes a cover body 1 and a rotor 2. The cover body 1 is provided with a cooling channel 111 and a heat exchange cavity 112. The cooling channel 111 and the heat exchange cavity 112 are connected. The heat exchange cavity 112 is configured to be connected to the cooking cavity 402. The rotor 2 is rotatably disposed on the cover body 1. The rotor 2 is located at the connection between the cooling channel 111 and the heat exchange cavity 112. The rotation of the rotor 2 can drive the air in the cooling channel 111 to the heat exchange cavity 112.

[0046] In this embodiment, as Figure 1 As shown, the cover assembly 100 is applied to the cooking appliance 400, which includes, but is not limited to, rice cookers, pressure rice cookers, electric soup pots, electric medicine pots, and electric clay pots. The cover assembly 100 is used to cover the main body of the cooking appliance 400 (such as the pot body 401). The cover body 1 is the main support component of the cover assembly 100. The cover body 1 can be a shell structure or a plate structure.

[0047] It is understandable that during the cooking process, the steam in the lid assembly 100 and the cooking appliance 400 with the lid assembly 100 will carry away the aroma molecules of the rice, thereby reducing the aroma of the rice. Currently, cooling devices are installed, such as air cooling or water cooling, to cool the lid body 1 of the lid assembly 100 in order to indirectly cool the cooking cavity 402, so that the hot steam in the cooking cavity 402 condenses on the lid body 1. However, the condensation efficiency of this method is low, and a lot of steam with aroma substances will still be directly discharged from the steam channel, which cannot completely preserve the aroma molecules.

[0048] Based on the above problems, this application provides a connected cooling channel 111 and a heat exchange chamber 112 on the cover 1 of the upper cover assembly 100. The heat exchange chamber 112 is connected to the cooking chamber 402. The rotor 2 is rotated at the connection between the cooling channel 111 and the heat exchange chamber 112. After the hot steam in the cooking chamber 402 enters the heat exchange chamber 112, the pressure in the heat exchange chamber 112 will increase instantaneously. At this time, the pressure in the cooling channel 111 remains at atmospheric pressure, so that the steam in the heat exchange chamber 112 will drive the rotor 2 to rotate. During the rotation of the rotor 2, cold air will also be introduced into the heat exchange chamber 112, and the cold air and hot steam will exchange heat in the heat exchange chamber 112 to condense the hot steam and obtain condensed water containing aroma molecules in the hot steam. Thus, through the direct and sufficient contact between the cold air and the hot steam, the aroma substances in the water vapor can be obtained more completely, thereby improving the condensation effect of the water vapor.

[0049] The cover assembly 100 of this utility model is applied to a cooking appliance 400. The cooking appliance 400 is provided with a cooking cavity 402. The cover assembly 100 includes a cover body 1 and a rotor 2. The cover body 1 is provided with a cooling channel 111 and a heat exchange cavity 112, and the cooling channel 111 and the heat exchange cavity 112 are connected. The heat exchange cavity 112 is connected to the cooking cavity 402. The rotor 2 is rotatably mounted on the cover body 1. The rotor 2 is located at the connection between the cooling channel 111 and the heat exchange cavity 112. After the steam in the cooking cavity 402 enters the heat exchange cavity 112, the steam drives the rotor 2 to rotate. At the same time, the rotation of the rotor 2 can drive the air in the cooling channel 111 into the heat exchange cavity 112, so that the cooler air in the cooling channel 111 comes into contact with the hot steam in the heat exchange cavity 112 to cool the hot steam and form condensate, thereby retaining the aroma molecules in the hot steam. The condensate flows back to the cooking cavity 402 in the form of condensate, improving the flavor of the cooked rice.

[0050] In one embodiment, such as Figure 1 and Figure 2 As shown, at least a portion of the cooling channel 111 extends along the thickness direction of the cover 1; the heat exchange chamber 112 is located at one end of the cooling channel 111 adjacent to the cooking chamber 402.

[0051] In this embodiment, the cover 1 is the main structural component of the upper cover assembly 100, and the cover 1 is used to cover the rice cooker body 401 to seal the cooking cavity 402. The cover 1 has a thickness direction and a plate extension direction perpendicular to the thickness direction. The thickness direction of the cover 1 is also the direction in which hot steam rises. At least a portion of the cooling channel 111 extends along the thickness direction of the cover 1, and the heat exchange cavity 112 is located at one end of the cooling channel 111 adjacent to the cooking cavity 402, such that the heat exchange cavity 112 and the end connected to the cooling channel 111 are both located at the opening of the cooking cavity 402.

[0052] It is understood that the main structure of the cooling channel 111 can be entirely arranged in a straight line along the thickness direction of the cover 1, or it can be partially arranged in a straight line and partially in a curve. This is not limited here. Preferably, the portion of the cooling channel 111 that connects to the heat exchange chamber 112 extends at an angle to the thickness direction of the cover 1. This reduces the space occupied by the cooling channel 111 in the thickness direction of the cover 1 and facilitates the installation of the rotor 2 at the connection point between the heat exchange chamber 112 and the cooling channel 111. Simultaneously, because the cold air temperature is lower, its density increases for the same volume, resulting in a heavier weight. The airflow entering the cooling channel 111 from the outside will... The airflow descends to one end of the cooling channel 111 near the cooking chamber 402, that is, it enters the heat exchange chamber 112 located at the end of the cooling channel 111 near the cooking chamber 402. At the same time, the hot steam entering the heat exchange chamber 112 has a higher temperature and a lower density for the same volume, making it lighter. Some of it will flow away from the rotor 2 in a direction away from the cooking chamber 402. At this time, the cooler airflow in the cooling channel 111 can first exchange heat with the hot steam in the heat exchange chamber 112. The cold air comes into full contact with the hot steam at the rotor 2, thereby effectively improving the condensation effect of the hot steam and more completely capturing the aroma molecules in the hot steam.

[0053] In one embodiment, such as Figure 2 As shown, the cooling channel 111 includes an inlet section 1111 and an outlet section 1112. The inlet section 1111 extends along the thickness direction of the cover 1. The outlet section 1112 is connected to the heat exchange chamber 112. The extension direction of the outlet section 1112 is set at an angle to the extension direction of the inlet section 1111.

[0054] In this embodiment, the inlet section 1111 and the outlet section 1112 are connected. The inlet section 1111 is located on the side of the cover 1 away from the cooking cavity 402. The end of the inlet section 1111 away from the outlet section 1112 is connected to the external space to actively or passively introduce airflow into the cooling channel 111. The outlet section 1112 is located on the side of the cover 1 adjacent to the cooking cavity 402. The end of the outlet section 1112 away from the inlet section 1111 is connected to the heat exchange cavity 112. The rotor 2 is rotatably located at the connection between the outlet section 1112 and the heat exchange cavity 112 to transport the airflow introduced by the inlet section 1111 to the rotor 2 and the heat exchange cavity 112.

[0055] Meanwhile, the channel extension direction of the outlet section 1112 is set at an angle to the channel extension direction of the inlet section 1111, and the channel extension direction of either the inlet section 1111 or the outlet section 1112 is set at an angle to the thickness direction of the cover 1. Preferably, the channel extension direction of the inlet section 1111 is set at an angle to the thickness direction of the cover 1, and the channel extension direction of the outlet section 1112 is set at an angle to the channel extension direction of the inlet section 1111.

[0056] It is understandable that setting up an inlet section 1111 and an outlet section 1112, and setting the channel extension directions of the inlet section 1111 and the outlet section 1112 to be arranged at an angle, can reduce the space occupied by the cooling channel 111 on the cover 1, and can moderately increase the length of the airflow path in the cooling channel 111. On the one hand, it ensures that as much cold air as possible can enter the cooling channel 111 to exchange heat with the hot steam in the heat exchange chamber 112, so as to increase the condensation of the hot steam. On the other hand, it can also provide a sufficient condensation area, so that at least at the outlet section 1112, the cold air can exchange heat with the hot steam, increase the condensation time of the hot steam, and further increase the condensation of the hot steam.

[0057] Furthermore, the channel extension direction of the inlet section 1111 is set to be consistent with the thickness direction of the cover 1, and the channel extension direction of the outlet section 1112 is set to be at an angle to the channel extension direction of the inlet section 1111. This ensures that the airflow can flow smoothly from the outlet section 1112 to the heat exchange chamber 112 or from the heat exchange chamber 112 to the outlet section 1112. It also makes it easy to install the rotor 2 at the connection between the outlet section 1112 and the heat exchange chamber 112. This ensures that the rotor 2 can rotate under the drive of hot steam, and drive more and smoother cold air in the cooling channel 111 into the heat exchange chamber 112 to exchange heat with the hot steam. This can also improve the condensation amount and condensation effect of the hot steam.

[0058] In one embodiment, such as Figure 1 and Figure 2As shown, the outlet section 1112 and the heat exchange chamber 112 are located on the same plane, and the rotor 2 rotates in one direction. It can be understood that the outlet section 1112 and the heat exchange chamber 112 are both located at the opening of the cooking chamber 402, that is, at the port where the hot steam in the cooking chamber 402 flows upward. Furthermore, the outlet section 1112 and the heat exchange chamber 112 are located on the same plane at the opening of the cooking chamber 402, so that a connection port parallel to the opening of the cooking chamber 402 is formed at the connection between the outlet section 1112 and the heat exchange chamber 112, so as to facilitate the installation of the rotor 2, so that the rotor 2 can directly contact the cold air in the outlet section 1112 and the hot steam in the heat exchange chamber 112, and the rotation of the rotor 2 directly guides the cold and hot airflows on both sides to come into contact with each other, thereby improving the smoothness of airflow and improving the condensation effect of the cold air on the hot steam.

[0059] Simultaneously, the rotor 2 rotates in one direction, which introduces the cold air in the cooling channel 111 into the heat exchange chamber 112 from the lower part of the rotor 2 along the thickness direction of the cover 1, and introduces the hot steam in the heat exchange chamber 112 into the cooling channel 111 from the upper part of the rotor 2 along the thickness direction of the cover 1. This allows as much of the sinking cold air as possible to enter the heat exchange chamber 112 from below the rotor 2, and as much of the rising hot steam as possible to enter the cooling channel 111 from above the rotor 2. Heat exchange occurs between the cold air and the hot steam around the periphery of the rotor 2, that is, in the area of ​​the heat exchange chamber 112 and at least the outlet section 1112, thereby allowing the cold air and hot steam to come into full contact and effectively improving the condensation effect of the hot steam.

[0060] Optionally, the side of the outlet section 1112 facing away from the inlet section 1111 is located in the cooking chamber 402. It is understood that the side of the outlet section 1112 facing away from the inlet section 1111 is located in the cooking chamber 402, or may contact the cooking chamber 402, so that the cover 1 structure forming the outlet section 1112 contacts the hot steam in the cooking chamber 402. The hot steam in the cooking chamber 402 will rise and enter the heat exchange chamber 112. During the process of the hot steam flowing and entering the heat exchange chamber 112, the hot steam will contact the cover 1 structure forming the outlet section 1112, so that a temperature difference is generated between the side of the outlet section 1112 where cold air flows and the side in contact with the hot steam. The hot steam will then form condensate on the side of the outlet section 1112 in contact with the cooking chamber 402. This allows the hot steam to be indirectly condensed on the cover 1, in addition to the rotor 2 guiding the contact between hot and cold air to condense the hot steam, thereby improving the condensation effect of the hot steam and preserving the aroma molecules in the steam as completely as possible.

[0061] In one embodiment, such as Figures 1 to 4 As shown, the upper cover assembly 100 also includes at least one guide plate 3; each guide plate 3 and the rotor 2 are spaced apart on the cover 1 along the thickness direction of the cover 1 and are located at the connection between the cooling channel 111 and the heat exchange chamber 112.

[0062] It is understood that the upper cover assembly 100 also includes at least one guide plate 3. The guide plate 3 is a plate or sheet structure. The guide plate 3 and the rotor 2 are spaced apart along the thickness direction of the cover 1, and the guide plate 3 is inclined. The inclination direction of the guide plate 3 is from the cooling channel 111 to the heat exchange chamber 112. Depending on the rotation direction of the rotor 2, the inclination angle and inclination direction of the guide plate 3 are also different. For example, when the rotor 2 guides hot steam into the cooling channel 111 from the top of the thickness direction of the cover 1, the guide plate 3 gradually inclinates upward along the thickness direction of the cover 1 in the direction from the cooling channel 111 to the heat exchange chamber 112. At this time, the side of the guide plate 3 facing the rotor 2 has a large rotation space so that the rotor 2 can rotate in one direction and also prevent the cold air in the cooling channel 111 from flowing back into the heat exchange chamber 112 along the guide plate 3 and the gap between the guide plate 3 and the rotor 2.

[0063] Meanwhile, in another embodiment of the present invention, the upper cover assembly 100 includes two guide plates 3, one of which is located at the upper end of the rotor 2 along the thickness direction of the cover 1, and the other is located at the lower end of the rotor 2 along the thickness direction of the cover 1. The two guide plates 3 have different inclination directions to avoid hot steam from leaking from the gap between the rotor 2 and the guide plate 3.

[0064] In one embodiment, such as Figure 1 , Figure 2 as well as Figure 4 As shown, the cover 1 includes a cover body 11 and a movable cover plate 12. The cover body 11 is provided with a pressure relief hole 113, which connects the heat exchange chamber 112 and the external space. The movable cover plate 12 is movably disposed on the cover body 11 and covers the pressure relief hole 113.

[0065] In this embodiment, the cover body 11 is the main support structure of the cover body 1. The cover body 11 has a thickness direction and a main extension direction perpendicular to the thickness direction. The cover body 11 is provided with a support plate 13. The support plate 13 is located at the upper part of the heat exchange cavity 112 along the thickness direction of the cover body 1, so that the support plate 13 separates the heat exchange cavity 112 from the external space. A pressure relief hole 113 is provided on the support plate 13, which connects the heat exchange cavity 112 and the external space. At the same time, the cover body 1 also includes a movable cover plate 12, which is movably connected to the support plate 13 and can cover the pressure relief hole 113.

[0066] It is understood that one end of the movable cover plate 12 is rotatably connected to the support plate 13, and the other end of the movable cover plate 12 can be close to or away from the support plate 13 to block the pressure relief hole 113 or to connect the pressure relief hole 113 to the heat exchange chamber 112 and the external space. When the hot steam completely fills the heat exchange chamber 112, the rotor 2 cannot guide more hot steam to the cooling channel 111 when it reaches the speed limit. The pressure in the heat exchange chamber 112 increases, and the internal pressure pushes the movable cover plate 12 away from the support plate 13 so that the pressure relief hole 113 connects the heat exchange chamber 112 and the external space, so that the hot steam in the heat exchange chamber 112 is discharged to the external space, thereby reducing the air pressure in the heat exchange chamber 112 and the cooking chamber 402 in time, and ensuring the safe use of the cover assembly 100 and the cooking appliance 400.

[0067] In one embodiment, such as Figure 2 As shown, the movable cover plate 12 includes a fixed end 121 and a movable end 122. The fixed end 121 is rotatably connected to the cover body 11, and the movable end 122 abuts against the cover body 11. The movable end 122 can move away from the heat exchange chamber 112 so that the pressure relief hole 113 connects the heat exchange chamber 112 and the external space.

[0068] It is understood that the fixed end 121 of the movable cover plate 12 is rotatably mounted on the support plate 13, and the movable end 122 of the movable cover plate 12 is axial about the fixed end 121. Through the rotation of the movable cover plate 12 relative to the support plate 13, the movable end 122 can be positioned close to or away from the support plate 13. This allows the heat exchange chamber 112 to be connected to or closed with the external space by blocking or opening the pressure relief hole 113, thereby facilitating the rapid pressure relief and exhaust of the heat exchange chamber 112 and ensuring safe use.

[0069] In one embodiment, such as Figures 2 to 4 As shown, the cover 1 also includes an isolation plate 14, a cooling channel 111 and a heat exchange chamber 112 located on both sides of the isolation plate 14 along the extension direction of the plate surface; the end of the isolation plate 14 and part of the cover body 11 enclose to form a cooling air outlet 114, and the rotor 2 is located at the cooling air outlet 114.

[0070] In this embodiment, the isolation plate 14 is disposed on the cover body 11, the cooling channel 111 and the heat exchange chamber 112 are located on both sides of the isolation plate 14 along the extension direction of the plate surface, and the extension direction of the plate surface of the isolation plate 14 is along the thickness direction of the cover body 11, so that the cooling channel 111 is formed on one side of the isolation plate 14 and the heat exchange chamber 112 is formed on the other side of the isolation plate 14. At the same time, a cooling air outlet 114 is formed at the end of the isolation plate 14 near the cooking chamber 402. The cooling air outlet 114 is the connection point between the cooling channel 111 and the heat exchange chamber 112, and the rotor 2 is disposed at the cooling air outlet 114.

[0071] It is understood that the isolation plate 14 is used for isolation between the channel and the cavity. That is, the isolation plate 14 forms the cooling channel 111 and the heat exchange cavity 112 mentioned above, and the isolation plate 14 forms a cooling air outlet 114 so that the rotor 2 can be installed at the cooling air outlet 114, so that the cold air in the cooling channel 111 enters the cooling air outlet 114 along the isolation plate 14 and exchanges heat with hot steam at the rotor 2 installed at the cooling air outlet 114 to completely obtain condensed water with fragrance molecules.

[0072] In one embodiment, such as Figures 2 to 4 As shown, the cover 1 also includes a first baffle 15, and the first baffle 15 and the partition plate 14 enclose each other to form a cooling air outlet 114; the cooling channel 111 and the cooking cavity 402 are located on both sides of the first baffle 15 along the plate surface direction.

[0073] In this embodiment, the first baffle 15 forms at least a portion of the outlet section 1112, that is, the first baffle 15 is at least a portion of the sidewall of the outlet section 1112. The outlet sections 1112 of the cooking cavity 402 and the cooling channel 111 are located on both sides of the first baffle 15, that is, the first baffle 15 covers part of the opening of the cooking cavity 402. At the same time, the extension direction of the plate surface of the first baffle 15 is set at an angle to the extension direction of the plate surface of the partition plate 14. The end of the first baffle 15 and the end of the partition plate 14 surround to form a cooling air outlet 114, so that the end of the partition plate 14, the rotor 2 and the end of the first baffle 15 are spaced apart along the thickness direction of the cover 1.

[0074] It is understandable that the cooling channel 111 and the cooking cavity 402 are located on both sides of the first baffle 15 along the plate surface direction, so that after contacting the first baffle 15, the hot steam can enter the heat exchange cavity 112 along the first baffle 15, and then enter the cooling air outlet 114. The first baffle 15 is set so that all the hot steam can first enter the heat exchange cavity 112, and then the rotation of the rotor 2 can guide the cold air into the heat exchange cavity 112 and guide the hot steam into the cooling channel 111. On the other hand, when the hot steam contacts the first baffle 15, the other side of the first baffle 15 forms the cooling channel 111, which comes into contact with the cold air, so that the two sides of the first baffle 15 generate a temperature difference. The hot steam can condense on the surface of the first baffle 15 to produce condensate with fragrant substances, thereby effectively improving the condensation effect of the hot steam and more completely obtaining condensate with fragrant molecules.

[0075] In one embodiment, such as Figures 2 to 4 As shown, the cover 1 also includes a second baffle 16, which is disposed in the cooling channel 111. The extension direction of the second baffle 16 is at an angle to the extension direction of the cooling channel 111. The end of the second baffle 16 is spaced apart from the side wall of the cooling channel 111.

[0076] In this embodiment, the second baffle 16 is a plate or sheet structure. The second baffle 16 is located at the inlet section 1111 of the cooling channel 111, and at the end of the inlet section 1111 away from the end connected to the outlet section 1112. The extension direction of the plate surface of the second baffle 16 is set at an angle to the extension direction of the inlet section 1111 of the cooling channel 111. The end of the second baffle 16 is spaced apart from the side wall of the cooling channel 111, so that a flow gap 161 is formed between the end of the second baffle 16 and the side wall of the cooling channel 111. The cold air entering the cooling channel 111 from the inlet section 1111 flows to the flow gap 161 under the guidance of the second baffle 16 and flows to the outlet section 1112.

[0077] Understandably, by setting the second baffle 16, the flow path of the airflow entering the cooling channel 111 can be changed, allowing the airflow to enter the outlet section 1112 from the flow gap 161 along the second baffle 16. This prevents cold air from directly rushing towards the rotor 2 along the cooling channel 111. On the one hand, it can extend the flow path of the airflow in the cooling channel 111, allowing some of the hot steam entering the cooling channel 111 to fully contact the cold air in the cooling channel 111, preventing this part of the hot steam from escaping from the cooling channel 111. On the other hand, it can also reduce the speed of the cold air entering the cooling channel 111, especially the flow speed at the rotor 2, so that the cold air and hot steam can slowly and fully exchange heat at the rotor 2, further improving the condensation effect of the hot steam, thereby obtaining the aroma molecules in the hot steam more completely.

[0078] Meanwhile, the second baffle 16 can also block the cooling channel 111 at the inlet section 1111, blocking some of the hot steam entering the cooling channel 111. At the same time, the cold air cools and condenses the hot steam in the cooling channel 111. The condensate condenses on the second baffle 16 and flows back to the heat exchange chamber 112 through the cooling channel 111, and further flows back to the cooking chamber 402 to improve the condensation effect of the hot steam.

[0079] In one embodiment, such as Figures 2 to 4 As shown, the cover 1 includes at least two second baffles 16, each second baffle 16 being arranged parallel to each other along the extension direction of the cooling channel 111; the ends of two adjacent second baffles 16 are arranged facing different side walls of the cooling channel 111.

[0080] It is understood that the ends of two adjacent second baffles 16 face different sidewalls of the cooling channel 111, and each second baffle 16 is arranged parallel to each other, so that the position of the flow gap 161 formed by each second baffle 16 and the sidewall of the cooling channel 111 is different. The cold air entering from the cooling channel 111 will enter the flow gap 161 formed by the second baffle 16 along the second baffle 16, and flow sequentially from the flow gap 161 located above the thickness direction of the cover 1 of the cooling channel 111 to the flow gap 161 located below the thickness direction of the cover 1 of the cooling channel 111. This effectively extends the flow path of the cold air, ensures that the cold air and the hot steam can fully contact each other, reduces the influence of the hot steam on the cold air, improves the condensation effect of the hot steam, and thus obtains the aroma molecules in the hot steam more completely.

[0081] In one embodiment, the cover assembly 100 further includes a drive member disposed on the cover 1, and a rotor 2 disposed at the output end of the drive member; the drive member is configured to drive the rotor 2 to rotate.

[0082] It is understood that the upper cover assembly 100 also includes a drive unit, which can be a servo motor or a stepper motor. The drive unit is located on the cover body 1, and the rotor 2 is located at the output end of the drive unit. The drive unit can drive the rotor 2 to rotate, so as to actively guide the cold air located in the cooling channel 111 into the heat exchange chamber 112, and guide the hot steam located in the heat exchange chamber 112 into the cooling channel 111. By setting the drive unit, on the basis of the rotor 2 passively guiding the airflow of cold air and hot steam to make the cold air and hot steam come into contact with each other, the drive unit can also adjust the rotation speed of the rotor 2, so as to adjust the airflow of cold air and hot steam in contact based on the different amounts of hot steam generated in the cooking chamber 402, thereby adapting to the current amount of steam. For example, when the amount of hot steam is large, it can be actively opened to quickly release pressure, avoid excessive pressure in the heat exchange chamber 112, and at the same time ensure that the hot steam can fully contact the cold air to completely obtain its condensate with aroma molecules.

[0083] This utility model also proposes a cooking utensil 400, such as Figure 1 As shown, the cooking appliance 400 includes a pot body 401 and the aforementioned lid assembly 100, which is connected to the pot body 401. The specific structure of the lid assembly 100 is as described in the foregoing embodiments. Since the cooking appliance 400 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.

[0084] Understandably, the cooking appliance 400 can be a pressure rice cooker, an electric soup pot, an electric medicine pot, or an electric clay pot, etc. The pot body 401 includes a base, an electric heater disposed on the base, and a rice cooker container disposed in the base and sitting on the electric heater. The lid 1 of the upper cover assembly 100 is rotatably hinged to the base at one end, and the other end is fastened to the base by a buckle, so that the upper cover assembly 100 can be opened by opening the buckle.

[0085] 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 cover assembly for use in a cooking appliance, the cooking appliance having a cooking cavity, characterized in that, The upper cover assembly includes: The lid, having a cooling channel and a heat exchange chamber connected together, is configured to communicate with the cooking chamber; and The rotor is rotatably mounted on the cover and is located at the connection between the cooling channel and the heat exchange chamber. The rotation of the rotor can drive the air in the cooling channel into the heat exchange chamber.

2. The upper cover assembly as claimed in claim 1, characterized in that, At least a portion of the cooling channels are provided to extend along the thickness direction of the cover; The heat exchange chamber is located at one end of the cooling channel adjacent to the cooking chamber.

3. The upper cover assembly as described in claim 2, characterized in that, The cooling channel includes an inlet section and an outlet section, with the inlet section extending along the thickness direction of the cover. The outlet section is connected to the heat exchange cavity, and the extension direction of the outlet section is set at an angle to the extension direction of the inlet section.

4. The upper cover assembly as described in claim 3, characterized in that, The outlet section and the heat exchange chamber are located on the same plane, and the rotor rotates in one direction. And / or, the side of the outlet section facing away from the inlet section is located in the cooking cavity.

5. The upper cover assembly as claimed in claim 1, characterized in that, The upper cover assembly also includes at least one guide plate; Each of the guide plates and the rotor are spaced apart on the cover along the thickness direction of the cover and located at the connection between the cooling channel and the heat exchange chamber.

6. The cover assembly as described in any one of claims 1 to 5, characterized in that, The cover includes a cover body and a movable cover plate. The cover body is provided with a pressure relief hole, which connects the heat exchange chamber and the external space. The movable cover plate is movably disposed on the cover body and covers the pressure relief hole.

7. The upper cover assembly as claimed in claim 6, characterized in that, The movable cover plate includes a fixed end and a movable end, the fixed end being rotatably connected to the cover body, and the movable end abutting against the cover body; The movable end can move away from the heat exchange cavity so that the pressure relief hole connects the heat exchange cavity and the external space.

8. The top cover assembly as claimed in claim 6, characterized in that, The cover also includes an isolation plate, and the cooling channel and the heat exchange chamber are located on both sides of the isolation plate along the extension direction of the plate surface; The end of the isolation plate and part of the cover body enclose a cooling air outlet, and the rotor is located at the cooling air outlet.

9. The cover assembly as claimed in claim 8, characterized in that, The cover also includes a first baffle, and the first baffle and the isolation plate together form the cooling air outlet; The cooling channel and the cooking cavity are located on both sides of the first baffle along the plate surface direction.

10. The cover assembly as claimed in any one of claims 1 to 5, characterized in that, The cover also includes a second baffle, which is disposed in the cooling channel, and the extension direction of the surface of the second baffle is set at an angle to the extension direction of the cooling channel. The end of the second baffle is spaced apart from the side wall of the cooling channel.

11. The cover assembly as claimed in claim 10, characterized in that, The cover includes at least two second baffles, each of which is arranged parallel to each other and spaced apart along the extension direction of the cooling channel; The ends of two adjacent second baffles are positioned facing different sidewalls of the cooling channel.

12. The cover assembly as claimed in any one of claims 1 to 5, characterized in that, The upper cover assembly also includes a driving component, which is disposed on the cover body, and the rotor is disposed at the output end of the driving component; The drive unit is configured to drive the rotor to rotate.

13. A cooking utensil, characterized in that, The cooking appliance includes: The pot body; and The cover assembly as described in any one of claims 1 to 12, wherein the cover assembly is connected to the pot body.

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