Cooking appliances that produce steam quickly
By introducing a partition component into the steam generator to form a thermal buffer chamber structure, high-temperature water is preferentially supplied to the steam generation chamber, which solves the problem of low steam generation efficiency, enables rapid steam output, simplifies assembly, and improves the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYANG HOME APPLIANCES
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, the heat from the evaporation chamber is directly conducted to the low-temperature water, resulting in a slower rate of water temperature rise in the evaporation chamber, which in turn reduces steam generation efficiency and prolongs the user's waiting time.
A partition component is used to divide the water chamber into a first heat buffer chamber, a steam generation chamber, a second heat buffer chamber, and a waiting chamber. Through the connection between the first and second heat buffer chambers and the steam generation chamber, high-temperature water is preferentially supplied to the steam generation chamber to reduce heat exchange loss and maintain the high-temperature state of the steam generation chamber.
It improves the efficiency of steam generation, reduces user waiting time, has a simple and compact structure, is easy to assemble, reduces manufacturing difficulty, and enhances the user experience.
Smart Images
Figure CN224420715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a cooking appliance that generates steam quickly. Background Technology
[0002] Existing patent CN218784383U discloses a dual-energy-concentrating plate rapid steamer, which includes a main unit and a water tank. The water tank is fixedly installed in the inner cavity of the main unit, and its upper end is open. A heating element is installed inside the main unit and is fixedly connected to the bottom plate of the water tank. An energy-concentrating component is detachably installed inside the water tank, and an evaporation chamber is provided on the energy-concentrating component. The upper end of the evaporation chamber is open to form a steam outlet, and the lower end of the evaporation chamber is paired with the heating element. The inner cavity of the water tank is connected to the evaporation chamber via a water passage. The lower port of the cavity; the water path includes a water replenishment path and a water inlet path. The energy-concentrating component is detachably mounted on the base plate, thus forming a water inlet path between the energy-concentrating component and the heating component. The energy-concentrating component has a cylindrical structure. The water replenishment path includes a water replenishment trough and a water replenishment hole. The water replenishment trough is vertically opened on the side wall of the energy-concentrating component, connecting the inner cavity of the water tank and the inner cavity of the energy-concentrating component. The water replenishment hole is located on the partition plate at the lower end of the energy-concentrating component, connecting the inner cavity of the energy-concentrating component and the water inlet path below the partition plate. Because the water area outside the energy-concentrating component in the inner cavity of the water tank is a low-temperature water area, its temperature is lower than the temperature inside the evaporation cavity. Therefore, the heat from the evaporation cavity will be directly conducted to the low-temperature water area outside the energy-concentrating component. The large volume of water in the low-temperature water area causes a large amount of heat to be lost from the evaporation cavity, resulting in a slower heating rate of the water in the evaporation cavity. This leads to a decrease in the efficiency of steam generation in the evaporation cavity, prolonging the user's waiting time. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a cooking appliance that can quickly generate steam, which can effectively improve the steam generation efficiency and reduce the user's waiting time.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A cooking appliance that generates steam quickly includes a pot body, which includes an inner pot with a water-holding cavity and a heating element installed at the bottom of the water-holding cavity. The water-holding cavity is provided with a partition component that divides the water-holding cavity into a first heat buffer cavity, a steam generating cavity, a second heat buffer cavity, and a waiting-to-heat cavity. The first heat buffer cavity surrounds the outside of the steam generating cavity and connects the waiting-to-heat cavity and the steam generating cavity, so that water in the waiting-to-heat cavity enters the steam generating cavity through the first heat buffer cavity. The steam generating cavity includes a connected side cavity and a lower cavity. The lower cavity is located below and communicates with the second heat buffer cavity. The side cavity surrounds the outside of the second heat buffer cavity, and a steam outlet is provided at the top of the side cavity.
[0006] In the aforementioned cooking appliance that generates steam quickly, the separating component includes a quick-steaming cover fitted inside a water-filled cavity and a separating ring surrounding the outside of the quick-steaming cover. The waiting-to-heat cavity is defined between the side wall of the water-filled cavity and the separating ring. The first heat buffer cavity is defined between the separating ring and the outside of the quick-steaming cover. The steam generating cavity is defined between the quick-steaming cover and the heating element. The quick-steaming cover defines the second heat buffer cavity.
[0007] In the aforementioned cooking appliance that generates steam quickly, the quick-steam hood includes an integrally formed inner ring wall, an outer ring wall, and a partition plate with a first water passage hole. The side cavity is located between the inner ring wall and the outer ring wall. The partition plate is connected to the inner ring wall to form a second heat buffer cavity with an open upper end. The partition plate and the heating element form the lower cavity.
[0008] In the aforementioned cooking appliance that generates steam quickly, the bottom wall of the water-holding cavity is provided with a water-blocking rib surrounding the outside of the heating element. The water-blocking rib is inserted into the side cavity and is sealed to the outer ring wall. A first flow gap is provided between the water-blocking rib and the inner ring wall. The water-blocking rib is provided with a second water passage hole connecting the first heat buffer cavity and the steam generating cavity.
[0009] In the aforementioned cooking appliance that generates steam quickly, the partition ring is connected to the bottom wall of the water-holding cavity, and the partition ring has a through hole connecting the waiting-to-heat cavity and the first heat buffer cavity; or, the partition ring is connected to the quick-steam cover, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity; or, the cooking appliance further includes a drip tray that covers the water-holding cavity, the drip tray is connected to the partition ring, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity.
[0010] In the above-mentioned cooking appliance that generates steam quickly, the top wall of the side cavity includes a first top wall and a second top wall at different heights. The first top wall is higher than the second top wall and the highest water level of the water chamber, while the second top wall is lower than the highest water level of the water chamber. The steam outlet is located on the first top wall, and the length of the first top wall is less than the length of the second top wall.
[0011] In the aforementioned cooking appliance that generates steam quickly, the second heat buffer chamber has an upward-opening opening, and both the opening and the steam outlet are above the highest water level in the water chamber.
[0012] In the aforementioned cooking appliance that generates steam quickly, the second heat buffer chamber is connected to the first heat buffer chamber, so that a portion of the water in the chamber to be heated flows into the steam generating chamber through the first heat buffer chamber and the second heat buffer chamber in sequence.
[0013] In the aforementioned cooking appliances that generate steam quickly, the height of the lower cavity does not exceed 2 mm.
[0014] In the aforementioned cooking appliance that generates steam quickly, the heating element includes a heating tube and a heat-conducting plate. The heat-conducting plate is located below the second heat buffer chamber, and the heating tube is arranged corresponding to the side cavity.
[0015] The beneficial effects of this utility model are:
[0016] 1. When the cooking appliance of this utility model is in use, the heating element heats the water in the steam generating chamber to generate steam. Part of the heat from the steam generating chamber is transferred to the outer first heat buffer chamber and part is transferred to the inner second heat buffer chamber, thereby raising the water temperature in the first and second heat buffer chambers. At this time, the water temperature in the first and second heat buffer chambers is higher than the water temperature in the waiting chamber but lower than the temperature of the steam generating chamber. Since both the first and second heat buffer chambers are connected to the steam generating chamber, when the water in the steam generating chamber decreases due to evaporation, the higher-temperature water in the first and second heat buffer chambers will preferentially enter the steam generating chamber to ensure that there is sufficient water in the steam generating chamber for cooking. This increases the initial temperature of the water entering the steam generating chamber, thereby reducing the time required for heating, reaching the vaporization temperature faster, and effectively improving the efficiency of steam generation. In addition, the first heat buffer chamber acts as an isolation layer, reducing the direct heat exchange between the steam generating chamber and the waiting chamber (low-temperature water), preventing a sudden drop in the temperature of the steam generating chamber, maintaining a stable high-temperature state in the steam generating chamber, thereby ensuring the efficiency of steam generation and reducing the user's waiting time.
[0017] 2. The separating component includes a rapid-steaming hood that is fastened inside the water-filled cavity and a separating ring surrounding the outside of the rapid-steaming hood. The waiting-to-heat cavity is defined between the side wall of the water-filled cavity and the separating ring. The first heat buffer cavity is defined between the separating ring and the outside of the rapid-steaming hood. The rapid-steaming hood and the heating element define a steam generating cavity. The rapid-steaming hood defines a second heat buffer cavity. With this design, after the rapid-steaming hood and the separating ring are installed in the water-filled cavity, the physical separation between them defines the waiting-to-heat cavity, the first heat buffer cavity, the steam generating cavity, and the second heat buffer cavity, arranged sequentially from the outside to the inside. The structure is simple and compact, and assembly is relatively convenient. In addition, the design of the rapid-steaming hood being fastened inside the water-filled cavity facilitates the subsequent removal of the rapid-steaming hood, making it convenient for users to clean the bottom wall of the water-filled cavity that is covered by the rapid-steaming hood.
[0018] 3. The rapid steam hood includes an inner ring wall, an outer ring wall, and a partition plate with a first water passage hole. A side cavity is located between the inner and outer ring walls. The partition plate is connected to the inner ring wall to form a second heat buffer cavity with an open upper end. A lower cavity is formed between the partition plate and the heating element. This design allows communication between the second heat buffer cavity and the lower cavity through the first water passage hole. The design of the first water passage hole is simple and easy to process, thus reducing manufacturing difficulty. Furthermore, the integrated design of the inner ring wall, outer ring wall, and partition plate eliminates the assembly process for the rapid steam hood, thereby improving the user experience.
[0019] 4. The bottom wall of the water-holding chamber is provided with a water-blocking rib surrounding the outside of the heating element. The water-blocking rib is inserted into the side cavity and is sealed to the outer ring wall. A first flow gap is provided between the water-blocking rib and the inner ring wall. The water-blocking rib is provided with a second water passage hole connecting the first thermal buffer chamber and the steam generating chamber. This design allows the first thermal buffer chamber and the steam generating chamber to be connected through the second water passage hole; and the sealed connection between the water-blocking rib and the outer ring wall can prevent water in the first thermal buffer chamber from entering the steam generating chamber through the gap between the water-blocking rib and the outer ring wall, and can also horizontally position the rapid steaming hood through the water-blocking rib to prevent horizontal displacement of the rapid steaming hood; while the design of the first flow gap allows steam and water to pass through, thereby facilitating water to enter the side cavity and facilitating steam in the lower cavity to be discharged from the steam outlet.
[0020] 5. The partition ring is connected to the bottom wall of the water-holding cavity, and the partition ring has a through hole connecting the waiting-to-heat cavity and the first heat buffer cavity; or, the partition ring is connected to the quick-steam cover, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity; or, the cooking appliance also includes a drip tray that covers the water-holding cavity, the drip tray is connected to the partition ring, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity. This design avoids the problem of missing parts when assembling the partition ring separately, thus improving the user experience.
[0021] 6. The top wall of the side cavity includes a first top wall and a second top wall at different heights. The first top wall is higher than the second top wall and the highest water level in the water-filled cavity, while the second top wall is lower than the highest water level in the water-filled cavity. The steam outlet is located on the first top wall, and the length of the first top wall is shorter than the length of the second top wall. By lowering the second top wall to below the highest water level and making the length of the first top wall shorter than the length of the second top wall, the volume of the steam generating cavity can be greatly reduced, thereby reducing the amount of water that the steam generating cavity can hold. In this way, the heating element with the same heating power can achieve the effect of rapid steam generation by heating a small amount of water, thereby reducing power consumption. In addition, the first top wall is higher than the highest water level in the water-filled cavity, which can prevent water from submerging the steam outlet, thus ensuring that the steam is smoothly discharged through the steam outlet.
[0022] 7. The second thermal buffer chamber has an upward-opening opening, and both the opening and the steam outlet are higher than the highest water level in the water-holding chamber. This design prevents communication between the first and second thermal buffer chambers, as the water level in the first chamber will not exceed the highest level. This prevents water from the first chamber from entering the second chamber, allowing only water from the steam-generating chamber to enter. When the water in the steam-generating chamber is heated, some of the boiling water will enter the second thermal buffer chamber for storage, ensuring that the water temperature in the second chamber is higher than that in the first chamber. When the water level in the steam-generating chamber decreases, the high-temperature water in the second thermal buffer chamber will flow back to replenish it. This replenishment of higher-temperature water further increases the initial temperature of the water entering the steam-generating chamber, thereby reducing the heating time and effectively improving steam generation efficiency.
[0023] 8. The second thermal buffer chamber is connected to the first thermal buffer chamber, so that a portion of the water in the chamber to be heated flows sequentially through the first and second thermal buffer chambers into the steam generating chamber. With this design, when the user adds water after the partition assembly is completed, whether water is added to the chamber to be heated or the second thermal buffer chamber, it will ensure that the first thermal buffer chamber, the steam generating chamber, the second thermal buffer chamber, and the chamber to be heated all have water, and that the water level in the steam generating chamber is precisely measured, thus not affecting the rapid steam output.
[0024] 9. The height of the lower chamber should not exceed 2mm. This design further reduces the water volume in the lower chamber. The heating element with the same power can heat a smaller volume of water, increasing the temperature rise rate of the water in the steam generation chamber and further improving steam generation efficiency.
[0025] 10. The heating element includes a heating tube and a heat-conducting plate. The heat-conducting plate is located below the second heat buffer chamber, and the heating tube is positioned corresponding to the side chamber. With this design, when the heating element is working, the heating tube heats the heat-conducting plate, and the heat is evenly conducted to the lower chamber below the second heat buffer chamber through the heat-conducting plate, thus heating the water in the lower chamber. The heating tube's positioning corresponding to the side chamber allows for concentrated heating of the side chamber, thereby increasing the rate of temperature rise of the water in the side chamber and improving steam generation efficiency.
[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] Figure 1 This is an exploded view of the cooking utensil in Embodiment 1 of this utility model;
[0029] Figure 2This is an exploded view of part of the structure of the pot body and the drip tray in Embodiment 1 of this utility model;
[0030] Figure 3 This is a schematic diagram of the structure of the high-speed steam hood in Embodiment 1 of this utility model;
[0031] Figure 4 This is a schematic diagram of the assembly of the upper shell and the inner pot in Embodiment 1 of this utility model;
[0032] Figure 5 This is a cross-sectional view of the upper shell and inner pot assembled in Embodiment 1 of this utility model;
[0033] Figure 6 This is a cross-sectional view of the juice receiving tray, the dividing component, and the pot body assembled in Embodiment 1 of this utility model;
[0034] Figure 7 for Figure 6 A magnified view of part A in the diagram;
[0035] Figure 8 This is a three-dimensional sectional view of the juice receiving tray, the dividing component, and the pot body assembled in Embodiment 1 of this utility model;
[0036] Figure 9 This is a schematic diagram of the juice receiving tray, the dividing component, and the pot body after assembly and water addition in Embodiment 1 of this utility model;
[0037] Figure 10 This is a schematic diagram of the structure of the rapid steaming hood in Embodiment 2 of this utility model;
[0038] Figure 11 This is a cross-sectional view of the juice receiving tray, the dividing component, and the pot body assembled in Embodiment 2 of this utility model.
[0039] Figure label:
[0040] 001, First flow gap; 002, Second flow gap; 010, First thermal buffer chamber; 020, Steam generating chamber; 021, Side chamber; 0210, Steam outlet; 0211, First top wall; 0212, Second top wall; 022, Lower chamber; 030, Second thermal buffer chamber; 040, Heating chamber;
[0041] 100. Pot body; 110. Inner pot; 111. Water-holding cavity; 112. Water-blocking rib; 1120. Second water passage hole; 120. Outer shell; 121. Upper shell; 130. Heating element; 131. Heat-conducting plate; 132. Heating tube; 200. Separator assembly; 210. Rapid steaming cover; 211. Inner ring wall; 212. Outer ring wall; 213. Separator plate; 2130. First water passage hole; 220. Separator ring; 300. Juice receiving tray; 310. Conical boss. Detailed Implementation
[0042] This utility model provides a cooking appliance for rapid steam generation, including a pot body. The pot body includes an inner pot with a water-holding cavity and a heating element installed at the bottom of the water-holding cavity. The water-holding cavity is provided with a partition component, which divides the water-holding cavity into a first heat buffer cavity, a steam generating cavity, a second heat buffer cavity, and a waiting-to-heat cavity. The first heat buffer cavity surrounds the outside of the steam generating cavity and connects the waiting-to-heat cavity and the steam generating cavity, so that water in the waiting-to-heat cavity enters the steam generating cavity through the first heat buffer cavity. The steam generating cavity includes a connected side cavity and a lower cavity. The lower cavity is located below the second heat buffer cavity and communicates with the second heat buffer cavity. The side cavity surrounds the outside of the second heat buffer cavity, and a steam outlet is provided at the top of the side cavity.
[0043] When the cooking appliance of this invention is in use, the heating element heats the water in the steam generating chamber to generate steam. Part of the heat from the steam generating chamber is transferred to the outer first heat buffer chamber, and part is transferred to the inner second heat buffer chamber, raising the water temperature in both chambers. At this point, the water temperature in the first and second heat buffer chambers is higher than the water temperature in the waiting chamber but lower than the temperature of the steam generating chamber. Since both the first and second heat buffer chambers are connected to the steam generating chamber, as the water in the steam generating chamber decreases due to evaporation, the warmer water in the first and second heat buffer chambers preferentially enters the steam generating chamber to ensure sufficient water for cooking. This increases the initial temperature of the water entering the steam generating chamber, reducing the time required for heating, reaching the vaporization temperature faster, and effectively improving steam generation efficiency. Furthermore, the first heat buffer chamber acts as an isolation layer, reducing direct heat exchange between the steam generating chamber and the waiting chamber (low-temperature water), preventing a sudden drop in the steam generating chamber temperature, maintaining a stable high-temperature state, and thus ensuring steam generation efficiency and reducing user waiting time.
[0044] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model. In addition, it should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., indicating orientation or positional relationship, are only based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device / component must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0045] Example 1
[0046] like Figures 1 to 9 As shown, the cooking appliance for rapid steam generation in this embodiment includes a pot body 100, which includes an inner pot 110, an outer shell 120, and a heating element 130. The outer shell 120 includes an upper shell 121, and the inner pot 110 is connected to the upper shell 121. The inner pot 110 has a water-holding cavity 111, and the heating element 130 is installed at the bottom of the water-holding cavity 111. A partition component 200 is provided inside the water-holding cavity 111, which divides the water-holding cavity 111 into a first heat buffer cavity 010, a steam generating cavity 020, a second heat buffer cavity 030, and a waiting-to-heat cavity 040. The heating element 130 corresponds to... A steam generating chamber 020 is provided, and a first heat buffer chamber 010 surrounds the outside of the steam generating chamber 020. The first heat buffer chamber 010 connects the waiting chamber 040 and the steam generating chamber 020 so that the water in the waiting chamber 040 enters the steam generating chamber 020 through the first heat buffer chamber 010. The steam generating chamber 020 includes a side chamber 021 and a lower chamber 022 that are connected. The lower chamber 022 is located below the second heat buffer chamber 030 and communicates with the second heat buffer chamber 030. The side chamber 021 surrounds the outside of the second heat buffer chamber 030, and a steam outlet 0210 is provided at the top of the side chamber 021.
[0047] In this embodiment, when the cooking appliance is in use, the heating element 130 heats the water in the steam generating chamber 020 to generate steam. Part of the heat from the steam generating chamber 020 is transferred to the outer first heat buffer chamber 010, and part is transferred to the inner second heat buffer chamber 030, causing the water temperature in the first and second heat buffer chambers 010 and 030 to rise. At this time, the water temperature in the first and second heat buffer chambers 010 and 030 is higher than the water temperature in the waiting-to-heat chamber 040 but lower than the temperature of the steam generating chamber 020. Since both the first and second heat buffer chambers 010 and 030 are connected to the steam generating chamber 020, when the water in the steam generating chamber 020 decreases due to evaporation, the first heat buffer chamber 010... The higher-temperature water in the second heat buffer chamber 030 preferentially enters the steam generating chamber 020 to ensure sufficient water for cooking. This increases the initial temperature of the water entering the steam generating chamber 020, thereby reducing the time required for heating, reaching the vaporization temperature faster, and effectively improving the efficiency of steam generation. In addition, the first heat buffer chamber 010 acts as an isolation layer, reducing the direct heat exchange between the steam generating chamber 020 and the waiting chamber 040 (low-temperature water), preventing a sudden drop in the temperature of the steam generating chamber 020 and preventing the low-temperature water in the waiting chamber 040 from directly entering the steam generating chamber 020. This maintains a stable high-temperature state in the steam generating chamber 020, thereby ensuring the efficiency of steam generation and reducing the user's waiting time.
[0048] Specifically, in this embodiment, the separating component 200 includes a rapid steaming cover 210 and a separating ring 220. The rapid steaming cover 210 is fastened inside the water-filled cavity 111, while the separating ring 220 surrounds the outside of the rapid steaming cover 210 and is spaced apart from the rapid steaming cover 210. In this way, the portion of the water-filled cavity 111 located between the side wall of the water-filled cavity and the separating ring 220 forms the aforementioned waiting-to-heat cavity 040. The first heat buffer cavity 010 is defined between the separating ring 220 and the outside of the rapid steaming cover 210. The rapid steaming cover 210 and the heating component 130 define the aforementioned steam generating cavity 020. The rapid steaming cover 210 defines the second heat buffer cavity 030. After the quick-steaming cover 210 and the partition ring 220 are installed in the water-filled cavity 111, the physical separation between the two defines the waiting-to-heat cavity 040, the first heat buffer cavity 010, the steam generating cavity 020 and the second heat buffer cavity 030 arranged sequentially from the outside to the inside. The structure is simple and compact, and the assembly is relatively convenient. In addition, the design of the quick-steaming cover 210 being snapped into the water-filled cavity 111 makes it easy to remove the quick-steaming cover 210 later, so that the user can easily clean the bottom wall of the water-filled cavity 111 that is covered by the quick-steaming cover 210.
[0049] like Figure 3 , Figures 6 to 7 As shown, the quick-steaming hood 210 in this embodiment includes an integrally formed inner ring wall 211, an outer ring wall 212, and a partition plate 213. The outer ring wall 212 surrounds the outer side of the inner ring wall 211 and the two are spaced apart. The side cavity 021 is located between the inner ring wall 211 and the outer ring wall 212. The partition plate 213 is connected to the inner ring wall 211 to form the second heat buffer cavity 030 with the upper end open. The partition plate 213 and the heating component 130 form a lower cavity 022. The partition plate 213 is a downwardly protruding arc-shaped plate, and the partition plate 213 is provided with a first water passage hole 2130. With this design, the second heat buffer chamber 030 and the lower chamber 022 can be connected through the first water passage 2130. The design of the first water passage 2130 is simple and easy to process, thereby reducing the manufacturing difficulty. In addition, the design of the inner ring wall 211, outer ring wall 212 and partition plate 213 as an integral part also eliminates the assembly process of the quick steam cover 210, thereby improving the user experience.
[0050] To improve the reliability of the rapid steam hood 210 installed in the water-filled cavity 111, in this embodiment, the bottom wall of the water-filled cavity 111 is provided with a water-blocking rib 112 surrounding the outer side of the heating element 130. The water-blocking rib 112 is inserted into the side cavity 021 and is sealed to the outer ring wall 212. A first flow gap 001 is provided between the water-blocking rib 112 and the inner ring wall 211. The water-blocking rib 112 is provided with a second water passage hole 1120 connecting the first heat buffer cavity 010 and the steam generating cavity 020 (e.g., ...). Figure 4(As shown). With this design, the first thermal buffer chamber 010 and the steam generating chamber 020 can be connected through the second water passage 1120; and the water baffle 112 and the outer ring wall 212 are sealed together to prevent water in the first thermal buffer chamber 010 from entering the steam generating chamber 020 through the gap between the water baffle 112 and the outer ring wall 212, and the water baffle 112 can also be used to horizontally position the quick-steaming cover 210 to prevent the quick-steaming cover 210 from shifting horizontally, thereby improving the reliability of the quick-steaming cover 210 installed in the water-filled chamber 111; while the design of the first flow gap 001 allows steam and water to pass through, thereby facilitating water to enter the side chamber 021 and facilitating the discharge of steam in the lower chamber 022 from the steam outlet 0210.
[0051] Preferably, in this embodiment, the bottom wall of the inner pot 110 is provided with an installation through hole below the second heat buffer cavity 030. The heating component 130 includes a heat-conducting plate 131 and a heating tube 132. The heat-conducting plate 131 is located below the second heat buffer cavity 030. The heat-conducting plate 131 is fixed to the bottom wall of the inner pot by screws to cover the installation through hole. The heat-conducting plate 131 is recessed relative to the bottom wall of the inner pot around the installation through hole. In this way, the heat-conducting plate 131 can form part of the bottom wall of the inner pot. In order to prevent water in the water-holding cavity 111 from leaking through the gap between the heat-conducting plate 131 and the bottom wall of the inner pot, in this embodiment... A sealing element is provided between the heat-conducting plate 131 and the bottom wall of the inner pot, and the heating tube 132 is installed on the side of the heat-conducting plate 131 away from the water-holding cavity 111 and corresponding to the side cavity 021. In this way, the heat generated by the heating tube 132 is evenly transferred to the water area above the heat-conducting plate 131 (i.e., the water in the lower cavity 022) through the heat-conducting plate 131 to heat the water in the lower cavity 022. The heating tube 132 is corresponding to the side cavity 021, so that the side cavity 021 can be heated in a concentrated manner, thereby increasing the rate of increase of the water temperature in the side cavity 021 and improving the steam generation efficiency.
[0052] In this embodiment, the water-blocking rib 112 surrounds the outside of the heating tube 132. The water-blocking rib 112 includes an annular rib, a sealing ring, and a folded edge at the top of the annular rib. The annular rib is integrally formed with the bottom wall of the inner pot. The folded edge includes a transverse section and an extension section bent downward from the inner end of the transverse section. The outer end of the transverse section is connected to the top of the annular rib. A positioning groove with an opening facing downward is formed between the folded edge and the annular rib. The sealing ring includes a U-shaped ring body with an opening facing downward and a positioning rib connected to the inner side of the U-shaped ring. The top of the annular rib and the folded edge are inserted into the U-shaped ring. Inside the ring, the positioning rib of the sealing ring is inserted into the positioning groove, thus achieving relative fixation between the sealing ring and the annular rib. The outer side of the outer edge of the U-shaped ring body is provided with multiple annular skirts arranged axially at intervals. The annular skirts are in sealing contact with the outer ring wall 212, thereby achieving a sealing connection between the water-blocking rib 112 and the outer ring wall 212. The inner side of the U-shaped ring body is spaced apart from the inner ring wall 211, so that there is a first flow gap 001 between the water-blocking rib 112 and the inner ring wall 211. This design facilitates subsequent disassembly and cleaning of the sealing ring.
[0053] It is understood that in other embodiments of this utility model, the water-blocking rib only includes an annular rib and a sealing ring. An annular groove is provided on the outer side of the annular rib, and the sealing ring is sleeved on the outer side of the annular rib and partially clamped in the annular groove. This design can also achieve relative fixation between the sealing ring and the annular rib. The outer side of the sealing ring is in sealing contact with the outer ring wall, thereby achieving a sealed connection between the water-blocking rib and the outer ring wall. The inner side of the annular rib is spaced apart from the inner ring wall so that a first flow gap is provided between the water-blocking rib and the inner ring wall.
[0054] It is understood that in other embodiments of this utility model, the sealing ring is fixed to the inner side of the outer ring wall, and the inner side of the sealing ring is in sealing contact with the outer side of the water-blocking rib.
[0055] like Figure 1 , Figure 2 and Figure 7As shown, the cooking appliance in this embodiment also includes a drip tray 300 that covers the water cavity 111. The bottom wall of the drip tray 300 arches upward to form a conical protrusion 310 that is smaller at the top and larger at the bottom. The top of the conical protrusion 310 is provided with a steam vent. The bottom diameter of the conical protrusion 310 is larger than the outer diameter of the quick-steaming cover 210 to avoid the quick-steaming cover 210. The drip tray 300 is connected to a partition ring 220, which surrounds the outside of the conical protrusion 310. After the drip tray 300 is placed on the pot body 100, the partition ring 220... A second flow gap 002, with a height not exceeding 2mm, is fitted onto the outside of the quick-steaming hood 210 and exists between the partition ring 220 and the bottom wall of the water-holding cavity 111. This gap controls the amount of water flowing from the waiting-to-heat cavity 040 into the first heat buffer cavity 010. The partition ring 220 is connected to the drip tray 300, allowing for simultaneous assembly of the partition ring 220 after the drip tray 300 is assembled. This avoids the problem of missing parts that can occur when assembling the partition ring 220 separately, thus improving the user experience. The drip tray 300 and the partition ring 220 can be welded or integrally formed. The integral forming method is preferred, as it eliminates the need for separate assembly steps.
[0056] It is understood that in other embodiments of this utility model, the partition ring can also be connected to the bottom wall of the water-holding cavity, for example, by welding or integral processing. The partition ring is provided with a through hole connecting the heating cavity and the first heat buffer cavity; or, the partition ring is fixedly connected to the outer ring wall of the quick-steaming hood by a connecting rib, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity.
[0057] like Figure 3 , Figure 8 and Figure 9As shown, in order to further reduce the volume of the steam generating chamber 020, thereby reducing the water capacity of the steam generating chamber 020 and improving the steam generation efficiency, the side cavity 021 in this embodiment has an annular top wall. The top wall of the side cavity 021 includes a first top wall 0211 and a second top wall 0212 at different heights. The first top wall 0211 is higher than the second top wall 0212 and the highest water level of the water-filled chamber 111, and the second top wall 0212 is lower than the highest water level of the water-filled chamber 111. Preferably, the second top wall 0212 abuts against the top of the sealing ring, and the steam outlet 0210 is located on the first top wall 0211. The length of the first top wall 0211 is less than the length of the second top wall 0212. By lowering the second top wall 0212 below the highest water level and making the length of the first top wall 0211 less than the length of the second top wall 0212, the volume of the steam generating chamber 020 can be greatly reduced, thereby reducing the amount of water contained in the steam generating chamber 020. In this way, the heating element 130 with the same heating power can achieve the effect of quickly producing steam by heating a small amount of water, thereby reducing power consumption. In addition, the first top wall 0211 is higher than the highest water level of the water-filled chamber 111, which can prevent water from submerging the steam outlet 0210, thereby ensuring that the steam is smoothly discharged through the steam outlet 0210.
[0058] Secondly, the height of the lower cavity 022 does not exceed 2mm. This design further reduces the water capacity of the lower cavity 022. The heating element 130 of the same power heats a smaller amount of water, which can increase the heating rate of the water in the steam generating chamber 020, thereby further improving the steam generation efficiency.
[0059] Finally, in this embodiment, the structure of the rapid steam hood 210 also enables the second thermal buffer chamber 030 to be connected to the first thermal buffer chamber 010, so that a portion of the water in the waiting-to-heat chamber 040 flows sequentially through the first thermal buffer chamber 010 and the second thermal buffer chamber 030 into the steam generating chamber 020. With this design, when the user adds water after the rapid steam hood 210 is assembled, whether adding water to the water-holding chamber 111 or the second thermal buffer chamber 030, it can be ensured that the first thermal buffer chamber 010, the steam generating chamber 020, the second thermal buffer chamber 030, and the waiting-to-heat chamber 040 have water, and that the water quantity in the steam generating chamber 020 is guaranteed, without affecting the rapid steam output, and avoiding the limitation of the water addition position.
[0060] In this embodiment, when using the cooking appliance, first remove the drip tray 300 and insert the quick-steaming cover 210 into the water chamber 111. Then, add water to the area outside the quick-steaming cover 210 in the water chamber 111 or to the second heat buffer chamber 030, ensuring the added water level does not exceed the maximum water level in the water chamber 111. If water is added to the area outside the quick-steaming cover 210 in the water chamber 111, during the water addition process, the water in the area outside the quick-steaming cover 210 in the water chamber 111 can flow into the steam generating chamber 020 through the second water passage 1120. When the water level exceeds the second top wall 0212, the water in the area outside the quick-steaming cover 210 in the water chamber 111 can also flow into the second heat buffer chamber 030, ensuring that the second heat buffer chamber 030 contains water. After adding water, the water level in the area outside the quick-steaming cover 210 in the water chamber 111 and the second heat buffer chamber 030 are equal. The water level in the second thermal buffer chamber 030 is level with the water level in the second thermal buffer chamber 020. If water is added to the second thermal buffer chamber 030, during the water addition process, the water in the second thermal buffer chamber 030 can flow into the steam generating chamber 020 through the first water passage 2130. When the water level exceeds the second top wall 0212, the water in the second thermal buffer chamber 030 can also flow into the water holding chamber 111 outside the rapid steaming hood, so that there is water in the area outside the rapid steaming hood 210 in the water holding chamber 111. After the water is added, the water level in the area outside the rapid steaming hood 210 in the water holding chamber 111 is level with the water level in the second thermal buffer chamber 030.
[0061] After adding water, cover the drip tray 300 onto the pot body 100. At this time, the dividing ring 220 divides the area outside the quick steam cover 210 in the water chamber 111 into a waiting chamber 040 outside the dividing ring 220 and a first heat buffer chamber 010 between the dividing ring 220 and the quick steam cover 210. The waiting chamber 040 is connected to the first heat buffer chamber 010 through the second flow gap 002 so that the water levels in the waiting chamber 040, the first heat buffer chamber 010, the steam generating chamber 020, and the second heat buffer chamber 030 are level. The heating element 130 starts working and heats the water in the steam generating chamber 020. As the water temperature rises in the steam generating chamber 020, some heat is transferred to the outer first heat buffer chamber 010 and some to the inner second heat buffer chamber 030, thus raising the water temperature in both chambers. At this point, the water temperature in the first and second heat buffer chambers 010 and 030 is higher than the water temperature in the waiting chamber 040 but lower than the temperature in the steam generating chamber 020. Since both the first and second heat buffer chambers 010 and 030 are connected to the steam generating chamber 020, as the water in the steam generating chamber 020 decreases due to evaporation, the warmer water in the first and second heat buffer chambers 010 and 030 preferentially enters the steam generating chamber 020 to ensure sufficient water for cooking, thereby increasing the efficiency of water entering the steam generating chamber 020. The initial temperature is reduced, thus shortening the time required for heating and reaching the vaporization temperature more quickly, effectively improving the efficiency of steam generation. Furthermore, when the water level in the second thermal buffer chamber 030 decreases due to replenishment of the steam generating chamber 020, and the water level in the first thermal buffer chamber 010 is higher than the second top wall 0212, the water in the first thermal buffer chamber 010 can flow to the second thermal buffer chamber 030 to replenish it. Finally, after the water in the steam generating chamber 020 boils, the steam discharged through the steam outlet 0210 will be discharged into the steam chamber through the steam outlet on the conical boss 310, while the vapor-liquid mixture discharged through the steam outlet 0210 will enter the second thermal buffer chamber 030 under the obstruction of the conical boss 310, causing the water level in the second thermal buffer chamber 030 to continuously rise. The water temperature entering the steam generating chamber 020 through the first water passage 2130 also continuously rises, thus enabling the steam generating chamber 020 to generate steam faster and faster, further improving the steam generation efficiency.
[0062] It is understood that in other embodiments of this utility model, water can be added before the quick-steaming hood is installed into the water-filled chamber, and then the quick-steaming hood and the drip tray are installed. This can also ensure that the first heat buffer chamber, the steam generating chamber, the second heat buffer chamber and the waiting chamber have water, and ensure that the water in the steam generating chamber is quantitative, without affecting the rapid steam output, and avoids the limitation of the water addition sequence.
[0063] It is understood that in other embodiments of this utility model, the length of the first top wall of the quick-steaming hood may be greater than the length of the second top wall. For example, the central angle corresponding to the total length of the first top wall is 340°, and the central angle corresponding to the total length of the second top wall is 20°.
[0064] It is understood that in other embodiments of this utility model, the quick-steaming cover can also be fixed by screwing it onto the water-blocking rib, which eliminates the need for a sealing ring.
[0065] It is understood that in other embodiments of this utility model, the inner ring wall and partition plate located above the heating element may be made of metal or high-temperature resistant silicone to meet higher temperature resistance requirements.
[0066] Example 2
[0067] like Figures 10 to 11 As shown, compared with Embodiment 1, the difference in this embodiment lies in the structure of the rapid steam hood. The second heat buffer chamber 030 has an upward-opening opening, and both the opening and the steam outlet 0210 are higher than the highest water level in the water-holding chamber 111. That is, the entire top surface of the inner ring wall 211 is higher than the highest water level in the water-holding chamber 111. With this design, since the water in the first heat buffer chamber 010 will not exceed the highest water level, this design can prevent the first heat buffer chamber 010 from communicating with the second heat buffer chamber 030, thus preventing water from the first heat buffer chamber 010 from entering the second heat buffer chamber 030. Only the steam generating chamber 0210 is allowed to enter. Water from chamber 20 enters the second thermal buffer chamber 030. When the water in steam generating chamber 020 is heated, some of the boiling water will enter the second thermal buffer chamber 030 for storage, so that the water temperature in the second thermal buffer chamber 030 is higher than that in the first thermal buffer chamber 010. When the water in steam generating chamber 020 decreases, the high-temperature water in the second thermal buffer chamber 030 will flow back to steam generating chamber 020 to replenish it. The replenished water is at a higher temperature, which further increases the initial temperature of the water entering steam generating chamber 020, thereby reducing the time required for heating and effectively improving the efficiency of steam generation.
[0068] It should be noted that, with the quick-steaming hood of this embodiment, water can be added to the water-filling chamber before or after the quick-steaming hood is installed in the water-filling chamber. Since the partition plate of the quick-steaming hood is provided with a first water passage hole and a first heat buffer chamber that connects the waiting-to-heat chamber and the steam generating chamber, it can also ensure that there is water in the first heat buffer chamber, the steam generating chamber, the second heat buffer chamber and the waiting-to-heat chamber, and ensure that the water in the steam generating chamber is quantitative, without affecting the rapid steam output, and avoids the limitation of the water addition sequence.
[0069] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.
Claims
1. A cooking appliance for rapid steam generation, comprising a pot body, said pot body including an inner pot having a water-containing cavity and a heating element mounted at the bottom of the water-containing cavity, characterized in that, The water-holding cavity is equipped with a partition assembly, which divides the water-holding cavity into a first thermal buffer cavity, a steam generating cavity, a second thermal buffer cavity, and a waiting-to-heat cavity. The first thermal buffer cavity surrounds the outside of the steam generating cavity and connects the waiting-to-heat cavity and the steam generating cavity, so that the water in the waiting-to-heat cavity enters the steam generating cavity through the first thermal buffer cavity. The steam generating cavity includes a side cavity and a lower cavity that are connected to each other. The lower cavity is located below the second thermal buffer cavity and communicates with the second thermal buffer cavity. The side cavity surrounds the outside of the second thermal buffer cavity, and the top of the side cavity is provided with a steam outlet.
2. The cooking appliance for rapid steam generation as described in claim 1, characterized in that, The separating assembly includes a rapid steaming cover fastened inside the water-filled cavity and a separating ring surrounding the outside of the rapid steaming cover. The hot chamber is defined between the side wall of the water-filled cavity and the separating ring. The first heat buffer chamber is defined between the separating ring and the outside of the rapid steaming cover. The rapid steaming cover and the heating element define the steam generating chamber. The rapid steaming cover defines the second heat buffer chamber.
3. The cooking appliance for rapid steam generation as described in claim 2, characterized in that, The rapid steam hood includes an integrally formed inner ring wall, an outer ring wall, and a partition plate with a first water passage hole. The side cavity is located between the inner ring wall and the outer ring wall. The partition plate is connected to the inner ring wall to form a second heat buffer cavity with an open upper end. The partition plate and the heating element form the lower cavity.
4. The cooking appliance for rapid steam generation as described in claim 3, characterized in that, The bottom wall of the water-filled cavity is provided with a water-blocking rib surrounding the outside of the heating element. The water-blocking rib is inserted into the side cavity and is sealed to the outer ring wall. A first flow gap is provided between the water-blocking rib and the inner ring wall. The water-blocking rib is provided with a second water passage hole connecting the first thermal buffer cavity and the steam generating cavity.
5. The cooking appliance for rapid steam generation as described in claim 2, characterized in that, The partition ring is connected to the bottom wall of the water-holding cavity, and the partition ring is provided with a through hole connecting the waiting-to-heat cavity and the first heat buffer cavity; or, the partition ring is connected to the quick-steaming cover, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity; or, the cooking appliance further includes a drip tray that covers the water-holding cavity, the drip tray is connected to the partition ring, and there is a second flow gap between the partition ring and the bottom wall of the water-holding cavity.
6. The cooking appliance for rapid steam generation as described in claim 1, characterized in that, The top wall of the side cavity includes a first top wall and a second top wall at different heights. The first top wall is higher than the second top wall and the highest water level of the water-filled cavity, while the second top wall is lower than the highest water level of the water-filled cavity. The steam outlet is located on the first top wall, and the length of the first top wall is less than the length of the second top wall.
7. The cooking appliance for rapid steam generation as described in claim 1, characterized in that, The second thermal buffer chamber has an upward-opening opening, and both the opening and the steam outlet are above the highest water level in the water-filled chamber.
8. The cooking appliance for rapid steam generation as described in claim 1, characterized in that, The second heat buffer chamber is connected to the first heat buffer chamber, so that part of the water in the chamber to be heated flows into the steam generating chamber through the first heat buffer chamber and the second heat buffer chamber in sequence.
9. The cooking appliance for rapid steam generation as described in any one of claims 1 to 8, characterized in that, The height of the lower cavity does not exceed 2mm.
10. The cooking appliance for rapid steam generation as described in any one of claims 1 to 8, characterized in that, The heating component includes a heating tube and a heat-conducting plate. The heat-conducting plate is located below the second heat buffer chamber, and the heating tube is arranged corresponding to the side cavity.