Condensation structure, upper cover assembly and cooking utensil
By using the steam injection holes and separation plate design of the condensation structure, the steam in the cooking appliance is separated into gas and liquid, which solves the problem of water vapor carrying away the aroma, reduces energy consumption and enhances the flavor of the rice.
Patent Information
- Application Number
- CN202422944792.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing cooking appliances cause the steam to carry away the aroma of rice during the cooking process, resulting in aroma loss, and traditional cooling devices require electricity, increasing energy consumption.
The system employs a condensation structure, including a condenser body and a separation plate. Gas-liquid separation is achieved through steam injection holes and steam guide channels. The steam injection holes and the separation plate are spaced apart. The steam flow rate increases at the injection holes and impacts the separation plate. The liquid water flows back to the cooking cavity under the action of gravity, thus preserving the aroma substances.
No fan or water pump is needed for condensation, which reduces the electrical load on cooking appliances, reduces energy consumption, and enhances the flavor of rice.
Smart Images
Figure CN223489565U_ABST
Abstract
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, steam carries away the aroma molecules of the rice, thus reducing its fragrance. To address this issue, cooling devices are installed, such as water-cooled devices including water pumps and cooling pipes, or air-cooled devices including fans and cooling pipes. However, these cooling devices require power to electronic components such as water pumps or fans, which not only increases the overall power load of the rice cooker but also increases the overall energy consumption of the cooking appliance. Utility Model Content
[0003] The main purpose of this invention is to provide a condensation structure, a top cover assembly, and a cooking appliance, which aims to reduce the electrical load of the cooking appliance and reduce its energy consumption.
[0004] To achieve the above objectives, this utility model proposes a condensation structure applied to a cooking appliance, the cooking appliance having a cooking cavity, and the condensation structure comprising:
[0005] The condenser body is provided with a steam guide channel and a steam injection hole, the steam injection hole connecting the steam guide channel and the cooking chamber; and
[0006] A separation plate is disposed in the steam guide channel, with the plate surface facing the steam injection hole and spaced apart from the steam injection hole.
[0007] In one embodiment, the axial direction of the steam injection hole is perpendicular to the surface of the separation plate;
[0008] And / or, the condensation structure has a vertical direction for the upward flow of steam, and the plate body of the separation plate extends along the vertical direction.
[0009] In one embodiment, the condenser body is further provided with a return port, which connects the steam guide channel and the cooking chamber;
[0010] The reflux port is located between the cooking chamber and the separation plate.
[0011] In one embodiment, the separation plate is provided with a first impact surface, and the steam injection holes face the first impact surface and are spaced apart from the first impact surface;
[0012] The area of the first impact surface is larger than the cross-sectional area of the steam injection hole.
[0013] In one embodiment, the separating plate includes a plate body and an impact boss, the impact boss being disposed on the plate body;
[0014] The impact boss has the first impact surface on the side facing away from the plate.
[0015] In one embodiment, the separation plate further includes an impact baffle, the impact baffle and the first impact surface are disposed on the same side of the plate body, and the impact baffle is provided with a second impact surface;
[0016] The second impact surface is set at an angle to the first impact surface, and the second impact surface is located above the first impact surface along the direction of steam upward flow.
[0017] In one embodiment, the impact baffle is inclined, and the distance between the second impact surface and the first impact surface gradually increases;
[0018] Alternatively, the impact baffle may be inclined, and the distance between the second impact surface and the first impact surface may be initially increased and then decreased.
[0019] In one embodiment, the separation plate includes at least two impact baffles, each of which is arranged in parallel at intervals.
[0020] The length of each impact baffle protruding from the plate body gradually increases from the vicinity of the first impact surface to the distance from the first impact surface.
[0021] In one embodiment, the straight-line distance from the steam injection hole to the separation plate is less than or equal to 7 mm;
[0022] And / or, the cross-sectional area of the steam injection orifice is less than or equal to 30 square millimeters;
[0023] And / or, the condenser body is provided with a return port connecting the steam guide channel and the cooking chamber, and the condenser structure further includes a one-way valve, which is located at the return port;
[0024] And / or, the separation plate is detachably disposed on the condenser body.
[0025] In one embodiment, the condenser body is further provided with a steam exhaust channel, which connects the cooking chamber and the steam injection hole;
[0026] The condensation structure also includes a pressure relief valve, which is located in the exhaust passage and can block the steam injection hole.
[0027] This utility model also proposes a top cover assembly, the top cover assembly comprising:
[0028] Cover; and
[0029] The condensation structure described above is located on the cover.
[0030] In one embodiment, the cover is provided with a steam valve, and the condensation structure is disposed on the steam valve;
[0031] And / or, the condensation structure is detachably provided on the cover.
[0032] This utility model also proposes a cooking utensil, the cooking utensil comprising:
[0033] The pot body; and
[0034] As described above, the top cover assembly is connected to the pot body.
[0035] This invention relates to a condensing structure applied to a cooking appliance. The cooking appliance has a cooking chamber, and the condensing structure includes a condensing body and a separation plate. The condensing body has a steam guiding channel and a steam injection hole, which connects the steam guiding channel and the cooking chamber. The separation plate is located in the steam guiding channel, with its surface facing the steam injection hole and spaced apart from it. Hot steam escaping from the cooking chamber passes through the steam injection hole. Due to the instantaneous decrease in the cross-sectional area of the steam flow, the velocity of the hot steam in the steam injection hole increases rapidly, and it impacts the spaced-apart separation plate at a high speed. Upon impact with the separation plate, the hot steam and the water it carries fall vertically downwards under the influence of gravity because the weight of the liquid water is greater than that of the steam, thus achieving gas-liquid separation. The aromatic substances in the hot steam are retained in the liquid water and flow back into the cooking cavity in time to enhance the flavor of the cooked rice. This condensation structure achieves gas-liquid separation by injecting steam into the separation plate through steam injection holes, eliminating the need for traditional cold sources such as fans or water pumps to condense the hot steam and obtain condensed water with aromatic substances. This effectively reduces the electrical load of the cooking appliance and reduces its energy consumption. Attached Figure Description
[0036] 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.
[0037] Figure 1 This is a schematic diagram of the upper cover assembly in one embodiment of the present invention;
[0038] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0039] Figure 3 This is a schematic diagram of the upper cover assembly in another embodiment of the present invention;
[0040] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;
[0041] Figure 5 This is a schematic diagram of the separation plate in one embodiment of the present invention;
[0042] Figure 6 This is a schematic diagram of the separation plate from another perspective in one embodiment of the present invention;
[0043] Figure 7 This is a structural schematic diagram of the separation plate from another perspective in one embodiment of the present invention.
[0044] Explanation of icon numbers:
[0045] 100. Condensing structure; 1. Condensing body; 11. Steam guide channel; 12. Steam injection hole; 13. Return port; 14. Exhaust channel; 2. Separator plate; 21. Plate body; 22. Impact boss; 221. First impact surface; 23. Impact baffle; 231. Second impact surface; 3. Check valve; 4. Pressure relief valve; 500. Top cover assembly; 501. Cover body; 502. Steam valve.
[0046] 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
[0047] 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.
[0048] 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.
[0049] 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.
[0050] Please refer to Figures 1 to 4 As shown, this utility model proposes a condensing structure 100, which is applied to a cooking appliance. The cooking appliance has a cooking cavity. The condensing structure 100 includes a condensing body 1 and a separation plate 2. The condensing body 1 has a steam guiding channel 11 and a steam injection hole 12. The steam injection hole 12 connects the steam guiding channel 11 and the cooking cavity. The separation plate 2 is located in the steam guiding channel 11, with the plate surface of the separation plate 2 facing the steam injection hole 12 and spaced apart from the steam injection hole 12.
[0051] In this embodiment, the condensing structure 100 is applied to a cooking appliance, 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 has a cooking cavity, and the condensing structure 100 is located at the opening of the cooking cavity or in a channel connected to the cooking cavity, so as to condense the steam escaping from the cooking cavity and obtain condensed water containing aromatic substances in the steam.
[0052] In this embodiment, the condensing structure 100 includes a condensing body 1 and a separation plate 2. The condensing body 1 is the main support frame of the condensing structure 100, used to form a passage and install the separation plate 2. The condensing body 1 is located on the top cover (pot lid) of the cooking appliance, and the condensing body 1 can be a frame, plate 21, pipe, or other structures. The condensing body 1 is provided with a steam guiding channel 11 and a steam injection hole 12. One end of the steam injection hole 12 is connected to the cooking cavity, and the other end of the steam injection hole 12 is connected to the steam guiding channel 11, so that the steam in the cooking cavity can enter the steam guiding channel 11 through the steam injection hole 12.
[0053] Furthermore, the separation plate 2 is disposed in the steam guide channel 11. The separation plate 2 is a plate-shaped structure. The separation plate 2 and the steam injection hole 12 are arranged at intervals relative to each other so that the plate surface of the separation plate 2 faces the steam injection hole 12. The steam ejected from the steam injection hole 12 will hit the separation plate 2.
[0054] Of course, the separation plate 2 in this application can be manufactured separately from the condenser body 1 or it can be manufactured as a single piece. The separation plate 2 is manufactured as a single piece with the condenser body 1, and the separation plate 2 forms an impact surface. The impact surface is arranged at intervals relative to the steam injection hole 12 so that steam can be ejected from the steam injection hole 12 and impact the impact surface.
[0055] Understandably, the hot steam escaping from the cooking cavity passes through the steam injection hole 12. As the steam flows from the larger volume of the cooking cavity to the smaller cross-sectional area of the steam injection hole 12, the cross-sectional area of the steam flow decreases sharply, causing the flow velocity of the hot steam in the steam injection hole 12 to increase rapidly. It then impacts the separation plate 2, which is spaced apart from the steam injection hole 12, at a high speed. After the impact, the hot steam and the water it carries fall vertically downwards under the action of gravity because the weight of the liquid water is greater than that of the water vapor, thus achieving gas-liquid separation. The aromatic substances in the hot steam are retained in the liquid water and flow back into the cooking cavity in time to enhance the flavor of the cooked rice. This condensation structure 100 achieves gas-liquid separation by spraying steam into the separation plate 2 through the steam injection hole 12. It eliminates the need to use traditional cold sources such as fans or water pumps to condense the hot steam and obtain condensed water with aromatic substances. It also eliminates the need for electricity and related circuit systems, effectively reducing the power load of the cooking appliance and reducing its energy consumption.
[0056] In one embodiment, such as Figures 1 to 4 As shown, the axis of the steam injection hole 12 is perpendicular to the surface of the separation plate 2. It can be understood that, with the separation plate 2 facing the steam injection hole 12, the surface of the separation plate 2 can be set at any angle to the axis of the steam injection hole 12, ensuring that the steam ejected from the steam injection hole 12 impacts the surface of the separation plate 2. Furthermore, setting the axis of the steam injection hole 12 perpendicular to the surface of the separation plate 2 shortens the distance between the steam injection hole 12 and the separation plate 2, reducing the kinetic energy loss of the steam after it leaves the steam injection hole 12, ensuring that the steam impacts the surface of the separation plate 2 at a higher speed, thus ensuring the gas-liquid separation effect and increasing the amount of liquid water collected in the steam to recover as much aroma as possible. On the other hand, it also ensures that the steam ejected from the steam injection hole 12 impacts all surfaces of the separation plate 2, ensuring that the steam impacts the surface of the separation plate 2 at a higher speed, thereby improving the gas-liquid separation effect.
[0057] Optionally, the condensing structure 100 has a vertical direction for the upward flow of steam, and the plate body 21 of the separation plate 2 extends vertically. It can be understood that because steam has high heat and large gaps between molecules, it has low density and small mass for the same volume. Therefore, steam will naturally flow vertically upward in both the cooking chamber and the steam guide channel 11. The plate body 21 of the separation plate 2 extends vertically and is set at an angle or perpendicular to the axis of the steam injection hole 12. By setting the plate body 21 of the separation plate 2 to extend vertically, the hot steam impacting the separation plate 2 can be quickly separated. That is, the hot steam can flow upward quickly in a vertical direction, and the liquid water can flow downward quickly in the opposite direction of gravity, effectively improving the gas-liquid separation efficiency of the hot steam.
[0058] In one embodiment, such as Figures 1 to 4 As shown, the condenser body 1 is also provided with a return port 13, which connects the steam guide channel 11 and the cooking chamber; the return port 13 is located between the steam injection hole 12 and the separation plate 2, and between the steam injection hole 12 and the cooking chamber.
[0059] In this embodiment, the return port 13 is not limited to a return port 13 structure; it can also be a return hole, a return channel, a return cavity, or other structures. The return port 13 connects the steam guide channel 11 and the cooking chamber and is located between the cooking chamber and the separation plate 2. For example, the return port 13 can also be located in the area between the steam injection hole 12 and the separation plate 2, or in the area between the steam injection hole 12 and the cooking chamber, or at the lower end of the separation plate 2 in the vertical direction, etc., without limitation.
[0060] Understandably, the return port 13 is used to return the liquid water obtained after separation to the cooking chamber, so that this part of the liquid water can continue to participate in the cooking of the food, so as to make full use of the aroma substances in this part of the liquid water. The return port 13 is set between the steam injection hole 12 and the separation plate 2, and between the steam injection hole 12 and the cooking chamber. This ensures that after the hot steam hits the separation plate 2, the liquid water generated can fall into the area of the separation plate 2 facing the steam injection hole 12, and fall vertically in this area by its own gravity, and fall to the return port 13, or flow to the return port 13 to return to the cooking chamber, so as to collect and return the condensate water with aroma substances.
[0061] In one embodiment, such as Figure 2 and Figure 4 As shown, the separation plate 2 is provided with a first impact surface 221, and the steam injection hole 12 faces the first impact surface 221 and is spaced apart from the first impact surface 221; the area of the first impact surface 221 is larger than the cross-sectional area of the steam injection hole 12.
[0062] It is understood that the separation plate 2 is provided with a first impact surface 221 facing the steam injection hole 12. The first impact surface 221 can be a plane or a curved surface. The first impact surface 221 can be inclined at an angle to the hole axis of the steam injection hole 12 or it can be perpendicular to the hole axis of the steam injection hole 12. The first impact surface 221 and the steam injection hole 12 are arranged at intervals to each other so that the steam ejected from the steam injection hole 12 can first impact the first impact surface 221 and perform gas-liquid separation after impact.
[0063] Meanwhile, the area of the first impact surface 221 is larger than the cross-sectional area of the steam injection hole 12, so that the steam ejected from the steam injection hole 12 can impact the first impact surface 221, so that the first impact surface 221 can completely cover the steam injection hole 12, preventing the steam from escaping directly in the vertical direction without impacting the first impact surface 221, thereby improving the gas-liquid separation effect of the steam.
[0064] In one embodiment, such as Figure 2 as well as Figures 4 to 7 As shown, the separation plate 2 includes a plate body 21 and an impact boss 22, the impact boss 22 is provided on the plate body 21; the side of the impact boss 22 facing away from the plate body 21 is provided with a first impact surface 221.
[0065] In this embodiment, the separation plate 2 includes a plate body 21 and an impact boss 22. The plate body 21 is the main structure of the separation plate 2. An impact boss 22 is provided on the side of the plate body 21 facing the steam injection hole 12. The impact boss 22 can be integrally formed with the plate body 21 or it can be detachably connected to the plate body 21. There is no limitation here. The impact boss 22 is provided on the side facing away from the plate body 21, that is, the side facing the steam injection hole 12, with the aforementioned first impact surface 221.
[0066] It is understandable that, with the position of the separation plate 2 fixed, the distance between the first impact surface 221 and the steam injection hole 12 can be adjusted by setting the impact protrusion 22. Preferably, by setting the impact protrusion 22 to shorten the distance between the first impact surface 221 and the steam injection hole 12, the kinetic energy loss between the steam injection hole 12 and the first impact surface 221 can be reduced, ensuring that the hot steam ejected from the steam injection hole 12 can impact the impact protrusion 22 and the first impact surface 221 on the impact protrusion 22 with a high initial velocity. This can separate the liquid water and gaseous water in the hot steam as much as possible, thereby improving the gas-liquid separation effect and collecting as much of the liquid water containing aromatic substances carried in the hot steam as possible.
[0067] In one embodiment, such as Figure 2 as well as Figures 4 to 7As shown, the separation plate 2 also includes an impact baffle 23, which is located on the same side of the plate body 21 as the first impact surface 221. The impact baffle 23 is provided with a second impact surface 231. The second impact surface 231 is set at an angle to the first impact surface 221, and the second impact surface 231 is located above the first impact surface 221 along the steam upward flow direction.
[0068] In this embodiment, the separation plate 2 further includes an impact baffle 23, which is disposed on the plate body 21. The impact baffle 23 and the first impact surface 221 are located on the same side of the plate body 21, that is, the side facing the steam injection hole 12. At the same time, the impact baffle 23 is disposed on the upper part of the first impact surface 221 in the vertical direction, that is, on the upper part of the first impact surface 221 in the natural upward direction of hot steam. The impact baffle 23 is also plate-shaped or sheet-shaped. The plate body of the impact baffle 23 extends from the plate body 21 of the separation plate 2 towards the steam injection hole 12 to form a second impact surface 231 on the side facing the first impact surface 221, and the first impact surface 221 and the second impact surface 231 are set at an angle.
[0069] It is understandable that after the hot steam ejected from the steam jet hole 12 impacts the first impact surface 221, the first gas-liquid separation will occur. The larger liquid water will fall freely in the vertical direction and flow back into the cooking cavity, while some smaller water droplets will still flow upward in the vertical direction with the hot steam and be discharged to the outside. That is, the hot steam still contains liquid water with aroma substances after impacting the first impact surface 221. Based on this, an impact baffle 23 is set at the upper part of the first impact surface 221 in the vertical direction, and a second impact surface 231 is set so that the steam still containing liquid water can impact the second impact surface 231 again. After impacting the second impact surface 231, the hot steam undergoes secondary gas-liquid separation, and the residual liquid water in the hot steam is further collected, so as to obtain the liquid water containing aroma substances more completely and improve the gas-liquid separation effect.
[0070] In one embodiment, such as Figure 5 and Figure 6 As shown, the impact baffle 23 is inclined, and the distance between the second impact surface 231 and the first impact surface 221 gradually increases; or, the distance between the second impact surface 231 and the first impact surface 221 first increases and then decreases.
[0071] It is understood that the impact baffle 23 is inclined, such as the distance between the second impact surface 231 and the first impact surface 221 gradually increasing or decreasing. Preferably, the angle β between the impact baffle 23 and the horizontal plane perpendicular to the vertical direction is greater than or equal to 10°, and the second impact surface 231 is inclined to the vertical direction. This allows the separated liquid water to flow vertically downward along the inclined second impact surface 231 after the hot steam impacts the second impact surface 231 and flow to the return port 13. Alternatively, the distance between the second impact surface 231 and the first impact surface 221 increases first and then decreases, so that both ends of the impact baffle 23 are inclined. This allows the separated liquid water to flow quickly along the inclined second impact surface 231, reducing the accumulation of liquid water and allowing subsequent hot steam to quickly impact the second impact surface 231 to generate new liquid water.
[0072] In one embodiment, such as Figure 2 as well as Figures 4 to 7 As shown, the separation plate 2 includes at least two impact baffles 23, which are arranged in parallel at intervals; the length of each impact baffle 23 protruding from the plate body 21 gradually increases from the vicinity of the first impact surface 221 to the distance from the first impact surface 221.
[0073] In this embodiment, the separation plate 2 includes at least two impact baffles 23. Each impact baffle 23 is arranged in parallel and spaced apart along a direction away from the first impact surface 221, that is, a gap is formed between every two impact baffles 23. At the same time, the length of the protruding plate body 21 of each impact baffle 23 gradually increases from the vicinity of the first impact surface 221 to the distance away from the first impact surface 221. That is, the length of the protruding plate body 21 of the impact baffle 23 near the first impact surface 221 is smaller than the length of the impact baffle 23 away from the first impact surface 221. The length difference of the protruding plate body 21 of two adjacent impact baffles 23 is greater than or equal to 2 mm, so that each impact baffle 23 has a second impact surface 231 facing the first impact surface 221.
[0074] Understandably, by setting at least two impact baffles 23, and ensuring that each impact baffle 23 has a second impact surface 231 facing the first impact surface 221, after the hot steam is first sprayed from the steam injection hole 12 onto the first impact surface 221, the separated liquid water falls freely and flows back to the cooking chamber through the return port 13. The remaining hot steam after separation still contains a large number of lighter liquid water droplets. At this time, this part of the hot steam sequentially impacts the second impact surface 231 of each impact baffle 23, and the gas and liquid in the hot steam are separated multiple times through each second impact surface 231, thereby separating the hot steam into gas and liquid as much as possible, retaining the liquid water in the hot steam to the greatest extent, and retaining the aroma substances in the liquid water as completely as possible.
[0075] In one embodiment, the straight-line distance from the steam injection hole 12 to the separation plate 2 is less than or equal to 7 mm. It is understood that by limiting the minimum straight-line distance from the steam injection hole 12 to the separation plate 2, the straight-line distance from the steam injection hole 12 to the separation plate 2 is not too large, so that the kinetic energy loss of the steam ejected from the steam injection hole 12 is too large. This ensures that the steam can impact the separation plate 2 with a high initial velocity, so that the separation degree of the initial gas-liquid separation can be improved at a high velocity on the first impact surface 221. Furthermore, the hot steam that subsequently impacts the second impact surface 231 also has a high initial velocity, which can also improve the separation degree of the subsequent gas-liquid separation and improve the overall gas-liquid separation effect.
[0076] Optionally, the cross-sectional area of the steam injection hole 12 is less than or equal to 30 square millimeters. It is understood that by limiting the maximum cross-sectional area of the steam injection hole 12, the cross-sectional area of the steam injection hole 12 is kept within a small range so that after the hot steam passes through the steam injection hole 12, the flow velocity of the hot steam increases rapidly due to the sharp reduction of the steam flow cross section, which further increases the initial velocity of the hot steam when it hits the separation plate 2, so as to ensure the gas-liquid separation effect.
[0077] Optionally, the condenser body 1 is provided with a return port 13 connecting the steam guide channel 11 and the cooking chamber. The condenser structure 100 also includes a one-way valve 3, which is located at the return port 13. It is understood that a one-way valve 3 is also provided at the return port 13 to ensure that the separated liquid water can flow back to the cooking chamber through the one-way valve 3, and to prevent the hot steam in the cooking chamber from flowing directly from the return port 13 to the steam guide channel.
[0078] Optionally, the separation plate 2 is detachably mounted on the condenser body 1. It is understood that the separation plate 2 can be detachably connected to the condenser body 1 by means of snap-fit connection, plug-in connection, bolt connection, etc., so as to facilitate cleaning of the separation plate 2, ensure the hygiene of the condenser structure 100 and avoid internal blockage.
[0079] In one embodiment, such as Figure 2 and Figure 4 As shown, the condenser body 1 is also provided with a steam exhaust channel 14, which connects the cooking chamber and the steam injection hole 12; the condenser structure 100 also includes a pressure relief valve 4, which is located in the steam exhaust channel 14 and can block the steam injection hole 12.
[0080] In this embodiment, one end of the exhaust channel 14 is connected to the cooking chamber, and the other end of the exhaust channel 14 is connected to the steam injection hole 12. Steam enters the steam injection hole 12 through the exhaust channel 14 and is injected toward the separation plate 2. The channel extension direction of the exhaust channel 14 is preferably vertical, that is, along the direction in which the steam naturally rises, so as to adapt to the direction of steam discharge and enable the steam to quickly enter the exhaust channel 14 and the steam injection hole 12 connected to the exhaust channel 14.
[0081] It is understood that the steam injection hole 12 is located between the exhaust steam channel 14 and the steam guide channel 11, and connects the exhaust steam channel 14 and the steam guide channel 11. The direction of the hole axis of the steam injection hole 12 is set at an angle to the extension direction of the exhaust steam channel 14. Preferably, the direction of the hole axis of the steam injection hole 12 is set perpendicular to the extension direction of the exhaust steam channel 14. On the one hand, the steam can be turned at the connection between the steam injection hole 12 and the exhaust steam channel 14 to increase the speed at which the steam enters the steam injection hole 12. On the other hand, it can also reduce the space occupied by the condenser body 1. For example, the steam injection hole 12 can be set on the side wall of the exhaust steam channel 14, and the exhaust steam channel 14 and the steam guide channel 11 can be arranged in parallel.
[0082] Meanwhile, the condensing structure 100 also includes a pressure limiting valve 4, which is located in the exhaust channel 14. The pressure limiting valve 4 has a certain pressure value. On its movement path, the pressure limiting valve 4 can block the steam injection hole 12 to isolate the steam injection hole 12 and the exhaust channel 14, or open the steam injection hole 12 to connect the steam injection hole 12 and the exhaust channel 14. When the gas pressure in the cooking chamber gradually increases, the pressure limiting valve 4 is pushed open and connects the steam injection hole 12 with the exhaust channel 14, releasing the steam inside the cooking chamber. By setting the pressure limiting valve 4, the hot steam in the cooking chamber is prevented from continuously escaping directly from the exhaust channel 14 to the steam injection hole 12 and then to the steam guide channel 11, maintaining a certain pressure for the hot steam in the cooking chamber. When the pressure limiting valve 4 is opened, the hot steam can pass through the steam injection hole 12 with a high initial velocity and impact the separation plate 2 to achieve a better gas-liquid separation effect.
[0083] This utility model also proposes an upper cover assembly 500, such as... Figure 1 and Figure 3 As shown, the cover assembly 500 includes a cover body 501 and the aforementioned condensation structure 100, with the condensation structure 100 connected to the cover body 501. The specific structure of the condensation structure 100 is as described in the foregoing embodiments. Since this cover assembly 500 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 elaborated here.
[0084] In one embodiment, the cover 501 is provided with a steam valve 502, and the condensing structure 100 is provided on the steam valve 502. It can be understood that the cover 501 is provided with a steam valve 502 and a steam passage, which is connected to the cooking cavity to discharge hot steam in the cooking cavity to the outside through the steam passage. The steam valve 502 can be provided on the steam passage or a steam passage connecting the cooking cavity can be formed on the steam valve 502. There is no limitation here. The condensing structure 100 can be directly provided on the steam valve 502 or provided in the steam passage, as long as it can condense the hot steam discharged from the cooking cavity.
[0085] Optionally, the condensing structure 100 is detachably mounted on the cover 501. It can be understood that the condensing structure 100 is detachably connected to the cover 501, 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 501 to facilitate cleaning and maintenance of the condensing structure 100, ensuring the hygiene of the steam passage, and thus ensuring the hygiene and cleanliness of the liquid water flowing back into the cooking cavity.
[0086] This utility model also proposes a cooking appliance, which includes a pot body and the aforementioned upper lid assembly, the upper lid assembly being connected to the pot body. The specific structure of the upper lid assembly is as described in the foregoing embodiments. Since this cooking appliance 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 elaborated here.
[0087] Understandably, cooking appliances can be cooking appliances, pressure rice cookers, electric soup pots, electric medicine pots, and electric clay pots, etc. The pot body includes a base, an electric heater located on the base, and a rice cooker container located in the base and sitting on the electric heater. The lid of the upper cover assembly is rotatably hinged to the base at one end, and fastened to the base at the other end by a buckle, so that the upper cover assembly can be opened by opening the buckle.
[0088] 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: The condenser body is provided with a steam guide channel and a steam injection hole, the steam injection hole connecting the steam guide channel and the cooking chamber; and A separation plate is disposed in the steam guide channel, with the plate surface facing the steam injection hole and spaced apart from the steam injection hole.
2. The condensation structure as described in claim 1, characterized in that, The steam injection hole axis is perpendicular to the surface of the separation plate; And / or, the condensation structure has a vertical direction for the upward flow of steam, and the plate body of the separation plate extends along the vertical direction.
3. The condensation structure as described in claim 1, characterized in that, The condenser body is also provided with a return port, which connects the steam guide channel and the cooking chamber; The reflux port is located between the cooking chamber and the separation plate.
4. The condensation structure as described in claim 1, characterized in that, The separation plate is provided with a first impact surface, and the steam injection holes face the first impact surface and are spaced apart from the first impact surface. The area of the first impact surface is larger than the cross-sectional area of the steam injection hole.
5. The condensation structure as described in claim 4, characterized in that, The separation plate includes a plate body and an impact boss, wherein the impact boss is disposed on the plate body; The impact boss has the first impact surface on the side facing away from the plate.
6. The condensation structure as described in claim 5, characterized in that, The separation plate also includes an impact baffle, which is located on the same side of the plate as the first impact surface, and the impact baffle is provided with a second impact surface; The second impact surface is set at an angle to the first impact surface, and the second impact surface is located above the first impact surface along the direction of steam upward flow.
7. The condensation structure as described in claim 6, characterized in that, The impact baffle is inclined, and the distance between the second impact surface and the first impact surface gradually increases. Alternatively, the impact baffle may be inclined, and the distance between the second impact surface and the first impact surface may be initially increased and then decreased.
8. The condensation structure as described in claim 6, characterized in that, The separation plate includes at least two impact baffles, and the impact baffles are arranged in parallel at intervals. The length of each impact baffle protruding from the plate body gradually increases from the vicinity of the first impact surface to the distance from the first impact surface.
9. The condensation structure as described in any one of claims 1 to 8, characterized in that, The straight-line distance from the steam injection hole to the separation plate is less than or equal to 7 mm; And / or, the cross-sectional area of the steam injection orifice is less than or equal to 30 square millimeters; And / or, the condenser body is provided with a return port connecting the steam guide channel and the cooking chamber, and the condenser structure further includes a one-way valve, which is located at the return port; And / or, the separation plate is detachably disposed on the condenser body.
10. The condensation structure according to any one of claims 1 to 8, characterized in that, The condenser body is also provided with a steam exhaust channel, which connects the cooking chamber and the steam injection hole; The condensation structure also includes a pressure relief valve, which is located in the exhaust passage and can block the steam injection hole.
11. 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 10, wherein the condensation structure is disposed on the cover.
12. The cover assembly as claimed in claim 11, characterized in that, The cover is equipped with a steam valve, and the condensation structure is located at the steam valve; And / or, the condensation structure is detachably provided on the cover.
13. A cooking utensil, characterized in that, The cooking appliance includes: The pot body; and The cover assembly as claimed in any one of claims 11 or 12, wherein the cover assembly is connected to the pot body.