Cooking appliance

Abstract

The application discloses a cooking utensil, comprising: a cavity, the cavity comprising a cooking cavity, the bottom of the cooking cavity being provided with a liquid discharge hole; an evaporation tray, arranged outside the cavity, for collecting liquid flowing out of the liquid discharge hole; a filtering device, arranged between the liquid discharge hole and the evaporation tray, for filtering the liquid discharged from the liquid discharge hole; and a heating device, for heating the evaporation tray to evaporate the liquid in the evaporation tray. The structure solves the problem of water accumulation in the cooking cavity.

Description

Technical Field

[0001] This application belongs to the field of household appliances, specifically relating to a cooking appliance. Background Technology

[0002] In cooking appliances with steam functions (such as ovens), steam condenses on the cavity and food surfaces during cooking, producing a large amount of condensation. Simultaneously, some water from the steam generator also enters the cavity directly. These water droplets mix with the juices or oil from the heated food and eventually accumulate at the bottom of the cavity. Users must regularly clean the bottom of the cavity; otherwise, the accumulated mixture will breed bacteria and produce unpleasant odors, affecting user health and experience. Summary of the Invention

[0003] This application aims to solve the technical problem of how to clean the mixture at the bottom of the cavity of a cooking appliance with a steam function in the relevant solution.

[0004] To address the aforementioned technical problems, embodiments of this application provide a cooking utensil.

[0005] An embodiment of this application provides a cooking appliance, comprising: a cavity, the cavity including a cooking chamber, the bottom of the cooking chamber being provided with a drain hole; an evaporating plate, disposed outside the cavity, for collecting liquid flowing out from the drain hole; a filtering device, disposed between the drain hole and the evaporating plate, for filtering the liquid discharged from the drain hole; and a heating device for heating the evaporating plate to cause the liquid in the evaporating plate to evaporate.

[0006] The cooking appliance proposed according to the embodiments of this application includes a cavity, an evaporating plate, a heating device, and a filtering device. The cavity contains a cooking chamber for cooking food. A drain hole is provided at the bottom of the cooking chamber, allowing condensate, oil, and other mixtures within the cooking chamber to be filtered and discharged into the evaporating plate. The filtering device filters the condensate, oil, and other mixtures within the cooking chamber, ensuring the liquid discharged into the evaporating plate is relatively clean and free of food residue. The heating device heats the evaporating plate to evaporate the liquid, preventing water from accumulating in the evaporating plate for extended periods. This structure solves the problem of water accumulation in the cooking chamber by guiding water to the evaporating plate for evaporation. The filtering device pre-filters out oil and other contaminants from the accumulated water, preventing oil buildup in the evaporating plate from becoming difficult to clean and leading to bacterial growth. In addition, the filtration device can prevent oil from entering the evaporation pan. The oil is then heated together with the water in the evaporation pan, which makes the steam generated by the evaporation pan relatively pure. This provides conditions for the reuse of steam and avoids the steam heated by the evaporation pan from entering the cooking cavity and causing the food to have different flavors.

[0007] The filtration device can filter out food ingredients and oil. In other words, it can filter out not only large food items but also oil, ensuring that the liquid entering the evaporation pan is relatively clean and virtually free of oil.

[0008] Specifically, the filtration device is an ultrafiltration (UF) membrane or nanofiltration (NF) membrane filtration device. Alternatively, the filtration device is an activated carbon filtration device. Or, the filtration device contains oleophilic and hydrophobic materials.

[0009] In any of the above embodiments, optionally, the steam generated in the evaporator can enter the cooking chamber through the drain hole.

[0010] In this embodiment, the evaporation plate and the cooking chamber can be sealed and connected so that the steam generated in the evaporation plate can return to the cooking chamber to heat the food in the cooking chamber. This can achieve the reuse of water and improve the utilization rate of heat.

[0011] In any of the above embodiments, optionally, the evaporator includes a water-containing chamber and a water inlet communicating with the water-containing chamber. The water inlet is sealed and connected to a drain hole. Steam generated in the evaporator can enter the cooking chamber through the water inlet and the drain hole.

[0012] In this embodiment, the evaporating pan includes a water-receiving chamber for holding water discharged from the cooking chamber. The evaporating pan has a water inlet, which is connected to a drain hole, and the connection between the two is sealed to prevent water leakage from the drain hole. Furthermore, the steam generated in the evaporating pan can enter the cooking chamber through the water inlet and drain hole to heat the food inside, thus enabling the reuse of the collected water. In this structure, the water inlet serves as both the water inlet and the steam outlet, eliminating the need for two outlets on the evaporating pan and simplifying its structure.

[0013] To ensure users can clean the filter device promptly, a periodic reminder function can be set up. This reminder can be set after each cooking cycle, each time the cooking appliance is started, or periodically or based on the number of times the cooking appliance is used.

[0014] In any of the above embodiments, the cooking appliance may optionally include a steam exhaust pipe connected to the evaporation pan, for discharging steam generated in the evaporation pan to the cooking cavity or the outside of the cooking appliance. For example, the steam can be discharged into the cooking cavity or into a waste liquid container.

[0015] In this embodiment, the steam generated in the evaporator can be discharged into the cooking cavity through a steam exhaust channel, or collected elsewhere (e.g., by setting up a waste liquid collection box). By discharging the steam into the cooking cavity, the steam can be reused. Furthermore, by using an additional steam exhaust channel to transport the steam generated in the evaporator to the cooking cavity, the steam does not need to pass through a filter, avoiding the problem of the steam being contaminated by oil on the filter during its return to the cooking cavity. Of course, in other solutions, a steam exhaust pipe can also be used to discharge the steam in the evaporator to the outside of the cooking appliance, which also effectively drains accumulated water.

[0016] In any of the above embodiments, optionally, the heating device is disposed on the evaporating plate. The heating device may be located inside or outside the evaporating plate.

[0017] In this embodiment, the heating device can be installed on the evaporating plate, specifically either inside or outside the evaporating plate. Alternatively, the heating device can be installed on other structures outside the cavity, such as the outer casing.

[0018] In any of the above embodiments, optionally, the heating device and the evaporation plate are an integrated structure.

[0019] In this embodiment, the heating device and the evaporating plate can be connected as a single unit to ensure a more secure connection. In other embodiments, the heating device and the evaporating plate can be connected separately.

[0020] In any of the above embodiments, optionally, the evaporating pan includes a water-containing cavity and an overflow hole communicating with the water-containing cavity. The cooking appliance also includes a water collection element disposed outside the cavity for collecting liquid overflowing from the overflow hole.

[0021] In this embodiment, the evaporating pan is provided with an overflow hole, so that when there is too much water in the water-containing chamber of the evaporating pan, the excess water can be drained through the overflow hole. The cooking appliance also includes a water collection device to collect the liquid overflowing from the overflow hole, thus preventing excess water in the evaporating pan from leaking to other parts of the product and affecting its performance.

[0022] In any of the above embodiments, optionally, the evaporation pan includes: a base plate; a top cover disposed on the base plate, forming a water-containing cavity with the base plate, the top cover having a water inlet communicating with the water-containing cavity, the water inlet being sealed and connected to the drain hole. A filter device is installed at the drain hole, at the water inlet, or between the drain hole and the water inlet.

[0023] In this embodiment, the evaporation pan includes a base and a top cover. The base is used to hold water, and the top cover is used to seal the base. That is, the evaporation pan is not an open structure. To allow the evaporation pan to communicate with the drain hole, a water inlet is provided on the top cover. To prevent leakage of liquid from the drain hole, the water inlet and the drain hole are sealed together. This structure, making the evaporation pan a non-open structure, facilitates the centralized exhaust of steam from the evaporation pan, preventing steam from flowing around.

[0024] The filter can be installed inside the drain hole or the inlet. Alternatively, it can be installed between the drain hole and the inlet.

[0025] In any of the above embodiments, optionally, the evaporation tray includes a base. The cooking appliance also includes a heat insulation plate disposed on the bottom outer side of the cavity, the base and the heat insulation plate being an integral structure.

[0026] In this embodiment, the evaporation pan includes a base for holding water, and a heating device for heating the base to evaporate the water. In a specific embodiment, a heat insulation plate is provided on the outer side of the bottom of the cavity. The heat insulation plate can improve the heat preservation capacity of the cavity and reduce heat loss within the cavity. The base of the evaporation pan can be mounted on the heat insulation plate. Furthermore, the base of the evaporation pan can be integrally formed with the heat insulation plate, which reduces the number of parts in the product and simplifies the product structure.

[0027] In any of the above embodiments, optionally, the evaporation pan includes a base. The cooking appliance also includes a housing, a cavity installed inside the housing, the housing including a bottom plate disposed at the bottom of the cavity, and the base and the bottom plate being an integral structure.

[0028] In this embodiment, the evaporation pan includes a base for holding water, and a heating device for heating the base to evaporate the water. In a specific embodiment, the cooking appliance also includes a housing. A cavity is installed within the housing, serving as the inner liner. The housing primarily functions as the product's exterior. When installing the evaporation pan, the base can be mounted on the bottom plate of the housing.

[0029] Furthermore, the base of the evaporator can be integrally formed with the base plate, or welded into an integrated structure.

[0030] The evaporator can consist of only the base, in which case the evaporator is an open structure. Of course, in addition to the base, the evaporator can also be equipped with a top cover.

[0031] The chassis and the top cover can be detachably installed together. Alternatively, the chassis and the top cover can be assembled into a single unit or molded as a single piece.

[0032] In any of the above embodiments, the cooking appliance may optionally include a steam generator for supplying steam into the cooking cavity.

[0033] In this embodiment, a steam generator is used to produce steam. The steam can be used in the cooking cavity to heat the food. Specifically, the steam generator can generate steam outside the cavity and deliver the generated steam into the cooking cavity through pipes or the like. The steam generator may also include a steam heating pipe and a water supply structure. The steam heating pipe is installed in the cooking cavity, and the water supply structure supplies water to the steam heating pipe, thus heating the water through the steam heating pipe to generate steam.

[0034] Alternatively, the cooking appliance may be an oven, microwave oven, steam oven, or a combination microwave-steam-oven.

[0035] Optionally, the cooking appliance also includes an outer shell. The cavity serves as the inner pot, which is installed within the outer shell. The outer shell protects the inner pot and enhances its heat retention. Other components can also be installed between the outer shell and the inner pot. The outer shell, as an exterior component, prevents exposed parts and ensures the aesthetic appeal of the cooking appliance.

[0036] Optionally, the cooking appliance may also include a door for opening and closing the cooking chamber.

[0037] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0038] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 This is one of the structural schematic diagrams of a cooking appliance according to an embodiment of this application;

[0040] Figure 2 This is a second schematic diagram of the structure of a cooking appliance according to an embodiment of this application;

[0041] Figure 3 yes Figure 2 Sectional view along the middle AA direction;

[0042] Figure 4 This is the third structural schematic diagram of a cooking appliance according to an embodiment of this application;

[0043] Figure 5 This is the fourth structural schematic diagram of a cooking appliance according to an embodiment of this application;

[0044] Figure 6 This is the fifth schematic diagram of the structure of a cooking appliance according to an embodiment of this application;

[0045] Figure 7This is one of the schematic diagrams of the assembly structure of the evaporation plate, the filtering device and the heating device of a cooking appliance according to an embodiment of this application;

[0046] Figure 8 This is a second schematic diagram of the assembly structure of the evaporation plate, the filter device and the heating device of a cooking appliance according to an embodiment of this application;

[0047] Figure 9 yes Figure 8 Sectional view along the BB direction;

[0048] Figure 10 This is the third schematic diagram of the assembly structure of the evaporation plate, the filtering device and the heating device of a cooking appliance according to an embodiment of this application;

[0049] Figure 11 This is the fourth schematic diagram of the assembly structure of the evaporating plate, the filtering device and the heating device of a cooking appliance according to an embodiment of this application;

[0050] Figure 12 This is one of the exploded structural diagrams of the evaporation plate, the filtering device, and the heating device of a cooking appliance according to an embodiment of this application;

[0051] Figure 13 This is the fifth schematic diagram of the assembly structure of the evaporation plate, the filter device and the heating device of a cooking appliance according to an embodiment of this application;

[0052] Figure 14 This is a second exploded structural diagram of the evaporation plate, the filtering device, and the heating device of a cooking appliance according to an embodiment of this application;

[0053] Figure 15 This is a schematic diagram of the connection structure of the evaporation plate, steam exhaust pipe and water collection device of a cooking appliance according to an embodiment of this application;

[0054] Figure 16 This is the sixth structural schematic diagram of a cooking appliance according to an embodiment of this application.

[0055] The accompanying figure is labeled as follows:

[0056] 1. Cavity, 12. Cooking cavity, 14. Drain hole, 2. Filter device, 3. Evaporation plate, 32. Water container, 34. Water inlet, 36. Overflow hole, 37. Base, 38. Top cover, 4. Heating device, 5. Steam exhaust pipe, 6. Water collection device, 7. Heat insulation plate, 8. Outer shell, 82. Base plate, 9. Door, 10. Steam generator. Detailed Implementation

[0057] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0058] The cooking appliance according to embodiments of this application will now be described with reference to the accompanying drawings.

[0059] like Figures 1 to 16 As shown, an embodiment of this application proposes a cooking appliance, including: a cavity 1, the cavity 1 including a cooking cavity 12, the bottom of the cooking cavity 12 being provided with a drain hole 14; an evaporating plate 3, disposed outside the cavity 1, for collecting liquid flowing out from the drain hole 14; a filtering device 2, disposed between the drain hole 14 and the evaporating plate 3, for filtering the liquid discharged from the drain hole 14; and a heating device 4, for heating the evaporating plate 3 to cause the liquid in the evaporating plate 3 to evaporate.

[0060] The cooking appliance proposed according to the embodiments of this application includes a cavity 1, an evaporating plate 3, a filter device 2, and a heating device 4. The cavity 1 contains a cooking chamber 12 for cooking food. A drain hole 14 is provided at the bottom of the cooking chamber 12, allowing condensate, oil, and other mixtures within the cooking chamber 12 to be filtered by the filter device 2 and discharged into the evaporating plate 3. The filter device 2 filters the condensate, oil, and other mixtures within the cooking chamber 12, ensuring that the liquid discharged into the evaporating plate 3 is relatively clean and free of food residue. The heating device 4 heats the evaporating plate 3 to evaporate the liquid, preventing water from accumulating in the evaporating plate 3 for extended periods. This structure solves the problem of water accumulation in the cooking chamber 12 by guiding the water to the evaporating plate 3 for evaporation. The filter device 2 filters out oil and other contaminants from the accumulated water in advance, preventing oil and other contaminants from accumulating in the evaporating plate 3 and becoming difficult to clean, thus preventing bacterial growth in the evaporating plate 3. In addition, the filter device 2 can prevent oil from entering the evaporation pan 3 and being reheated with water in the evaporation pan 3. This makes the steam generated by the evaporation pan 3 relatively pure, providing conditions for the reuse of steam and preventing the steam after the evaporation pan 3 is heated from entering the cooking cavity 12 and causing the food to have mixed flavors.

[0061] The filter device 2 can filter food and oil. That is, the filter device 2 can not only filter out large food items, but also filter out oil, so that the liquid entering the evaporation pan 3 is relatively clean and basically free of oil.

[0062] Specifically, the filter device 2 is an ultrafiltration membrane (UF) or nanofiltration membrane (NF) filter device 2. Alternatively, the filter device 2 is an activated carbon filter device 2. Or, the filter device 2 is equipped with an oleophilic and hydrophobic material.

[0063] In any of the above embodiments, optionally, the steam generated in the evaporator 3 can enter the cooking chamber 12 through the drain hole 14.

[0064] In this embodiment, the evaporation plate 3 and the cooking chamber 12 can be sealed and connected so that the steam generated in the evaporation plate 3 can return to the cooking chamber 12 to heat the food in the cooking chamber 12. This can achieve the reuse of water and improve the utilization rate of heat.

[0065] In any of the above embodiments, optionally, as Figure 1 , Figure 2 and Figure 3 As shown, the evaporator 3 includes a water-containing cavity 32 and a water inlet 34 communicating with the water-containing cavity 32. The water inlet 34 is sealed and connected to the drain hole 14. The steam generated in the evaporator 3 can enter the cooking cavity 12 through the water inlet 34 and the drain hole 14.

[0066] In this embodiment, the evaporating pan 3 includes a water-receiving cavity 32 for holding water discharged from the cooking chamber 12. The evaporating pan 3 is provided with a water inlet 34, which is connected to a drain hole 14, and the connection between the two is sealed to prevent water leakage from the drain hole 14. Furthermore, the steam generated in the evaporating pan 3 can enter the cooking chamber 12 through the water inlet 34 and the drain hole 14 to heat the food in the cooking chamber 12, thus enabling the reuse of the accumulated water. In this structure, the water inlet 34 serves as both the water inlet and the steam outlet, eliminating the need for two outlets on the evaporating pan 3 and simplifying its structure.

[0067] To ensure users can clean the filter device 2 promptly, a periodic reminder function can be set up. This reminder can be set after each cooking cycle, each time the cooking appliance is started, or periodically or based on the number of times the cooking appliance is used.

[0068] In any of the above embodiments, optionally, as Figure 15 As shown, the cooking appliance also includes a steam exhaust pipe 5, which is connected to the evaporation pan 3, for discharging steam generated in the evaporation pan 3 into the cooking cavity 12 or to the outside of the cooking appliance. For example, the steam can be discharged into the cooking cavity 12 or into a waste liquid box.

[0069] In this embodiment, the steam generated in the evaporator 3 can be discharged into the cooking chamber 12 through the steam exhaust channel, or discharged to another location for collection (such as by setting up a waste liquid box for collection). By discharging the steam into the cooking chamber 12, the steam can be reused. Furthermore, by using an additional steam exhaust channel to transport the steam generated in the evaporator 3 to the cooking chamber 12, the steam does not need to pass through the filter device 2, avoiding the problem of the steam being contaminated by oil stains on the filter device 2 during its return to the cooking chamber 12. Of course, in other solutions, the steam in the evaporator 3 can also be discharged to the outside of the cooking appliance using the steam exhaust pipe 5, which can also effectively drain accumulated water.

[0070] In any of the above embodiments, optionally, as Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, the heating device 4 is mounted on the evaporating plate 3. The heating device 4 is located inside or outside the evaporating plate 3.

[0071] In this embodiment, the heating device 4 can be installed on the evaporating plate 3, specifically either inside or outside the evaporating plate 3. Alternatively, the heating device 4 can be installed on other structures outside the cavity 1, such as the outer casing 8.

[0072] In any of the above embodiments, optionally, the heating device 4 and the evaporation plate 3 are an integral structure.

[0073] In this embodiment, the heating device 4 and the evaporating plate 3 can be connected as a single unit to make the connection between them more secure. In other embodiments, the heating device 4 and the evaporating plate 3 can also be connected separately.

[0074] In any of the above embodiments, optionally, as Figure 7 , Figure 9 and Figure 15 As shown, the evaporation pan 3 includes a water-containing cavity 32 and an overflow hole 36 communicating with the water-containing cavity 32. The cooking appliance also includes a water collection component 6, disposed outside the cavity 1, for collecting liquid overflowing from the overflow hole 36.

[0075] In this embodiment, the evaporating pan 3 is provided with an overflow hole 36. When there is too much water in the water-containing cavity 32 of the evaporating pan 3, the excess water can be discharged through the overflow hole 36. The cooking appliance also includes a water collection component 6 for collecting the liquid overflowing from the overflow hole 36, thus preventing excess water in the evaporating pan 3 from leaking to other parts of the product and affecting the product's performance.

[0076] In any of the above embodiments, optionally, as Figure 1 , Figure 3 , Figure 8 and Figure 9 As shown, the evaporation pan 3 includes: a base 37; and a top cover 38, which is disposed on the base 37 and forms a water-containing cavity 32 with the base 37. The top cover 38 is provided with a water inlet 34 communicating with the water-containing cavity 32, and the water inlet 34 is sealed and connected to the drain hole 14. The filter device 2 is installed at the drain hole 14, at the water inlet 34, or between the drain hole 14 and the water inlet 34.

[0077] In this embodiment, the evaporator 3 includes a base 37 and a top cover 38. The base 37 is used to hold water, and the top cover 38 is used to seal the base 37. That is, the evaporator 3 is not an open structure. In order for the evaporator 3 to communicate with the drain hole 14, a water inlet 34 is provided on the top cover 38. To prevent leakage of liquid discharged from the drain hole 14, the water inlet 34 and the drain hole 14 are sealed together. This structure makes the evaporator 3 a non-open structure, which facilitates the centralized discharge of steam in the evaporator 3 and prevents steam from flowing around.

[0078] The filter device 2 can be installed inside the drain hole 14 or the inlet 34. Alternatively, the filter device 2 can be installed between the drain hole 14 and the inlet 34.

[0079] In any of the above embodiments, optionally, as Figure 1 , Figure 3 , Figure 7 , Figure 8 , Figure 9 and Figure 16 As shown, the evaporation plate 3 includes a base plate 37. The cooking appliance also includes a heat insulation plate 7, which is disposed on the outer bottom of the cavity 1. The base plate 37 and the heat insulation plate 7 are an integral structure.

[0080] In this embodiment, the evaporation pan 3 includes a base 37 for holding water, and a heating device 4 for heating the base 37 to evaporate the water. In a specific embodiment, a heat insulation plate 7 is provided on the outer side of the bottom of the cavity 1. The heat insulation plate 7 can improve the heat preservation capacity of the cavity 1 and reduce heat loss within the cavity 1. The base 37 of the evaporation pan 3 can be mounted on the heat insulation plate 7. Furthermore, the base 37 of the evaporation pan 3 can be integrally formed with the heat insulation plate 7, which can reduce the number of parts in the product and simplify the product structure.

[0081] In any of the above embodiments, optionally, as Figure 1 , Figure 3 and Figure 16As shown, the evaporator tray 3 includes a base 37. The cooking appliance also includes a housing 8, with the cavity 1 installed inside the housing 8. The housing 8 includes a bottom plate 82 corresponding to the bottom of the cavity 1. Further, the base 37 and the bottom plate 82 are an integral structure (not shown in the figure).

[0082] In this embodiment, the evaporation pan 3 includes a base 37 for holding water, and a heating device 4 for heating the base 37 to evaporate the water. In a specific embodiment, the cooking appliance also includes a housing 8. A cavity 1 is installed inside the housing 8, serving as the inner liner within the housing 8. The housing 8 primarily serves as the product's exterior component. When installing the evaporation pan 3, the base 37 can be mounted on the base plate 82 of the housing 8.

[0083] Furthermore, the base 37 of the evaporator 3 can be integrally formed with the base plate 82, or welded into an integral structure.

[0084] The evaporator 3 may consist only of the base 37, in which case the evaporator 3 is an open structure. Of course, in addition to the base 37, the evaporator 3 may also be provided with a top cover 38.

[0085] The chassis 37 and the top cover 38 can be detachably installed together. The chassis 37 and the top cover 38 can also be assembled into a single structure or molded as a single piece.

[0086] In any of the above embodiments, optionally, as Figure 15 As shown, the cooking appliance also includes a steam generator 10 for supplying steam into the cooking cavity 12.

[0087] In this embodiment, a steam generator is used to produce steam. The steam can be used in the cooking cavity 12 to heat the food. The steam generator can generate steam outside the cavity 1 and deliver the generated steam into the cooking cavity 12 through pipes or the like. The steam generator may also include a steam heating pipe and a water supply structure. The steam heating pipe is installed in the cooking cavity 12, and the water supply structure supplies water to the steam heating pipe, thus heating the water through the steam heating pipe to generate steam.

[0088] Alternatively, the cooking appliance may be an oven, microwave oven, steam oven, or a combination microwave-steam-oven.

[0089] Optionally, the cooking appliance also includes a shell 8. The cavity 1 is installed inside the shell 8 as an inner pot. The shell 8 protects the inner pot and enhances its heat retention. Other components can also be installed between the shell 8 and the inner pot. The shell 8 serves as an exterior component, preventing exposed parts and ensuring the aesthetic appeal of the cooking appliance.

[0090] Optionally, the cooking appliance also includes a door 9 for opening and closing the cooking chamber 12.

[0091] The following describes a specific cooking appliance with a steam function.

[0092] In the relevant solutions, when steam cooking food, it's unavoidable that steam condenses on the cavity and the food surface, producing a large amount of condensate. Simultaneously, some water from the steam generator also enters the cavity directly. These water droplets mix with the juices or oil from the heated food to form wastewater, which eventually accumulates at the bottom of the cavity. Users must clean this regularly; otherwise, the long-term accumulation of this mixture will generate a large amount of bacteria and unpleasant odors, affecting user health and experience.

[0093] To address the issue of water accumulation at the bottom of the cavity, the following are commonly used solutions:

[0094] 1. Built-in evaporator (or heating plate): The evaporator is an open heating plate located at the bottom of the cavity. Wastewater flows into the heating plate for reheating, thus solving the wastewater problem.

[0095] 2. A heating element is installed at the bottom of the cavity: This heating element may be inside or outside the cavity. The heating element is used to heat the bottom plate, causing the wastewater to evaporate.

[0096] 3. Bottom opening of the cavity: Water accumulated at the bottom drips directly through this opening into the wastewater box located directly below the cavity.

[0097] The existing technology has the following problems:

[0098] 1) Built-in evaporator (or heating plate): Oil stains are reheated together with water in the heating plate, and the steam produced is not fresh, which can easily cause other food in the cavity to have cross-contamination of flavor.

[0099] 2) Install heating tube at the bottom of the cavity: This solution requires the addition of a metal heating tube. If it is inside the cavity, it will affect the cleanliness of the bottom of the cavity. If it is outside the cavity, the heat transfer efficiency will be low and the evaporation effect will be limited.

[0100] 3) An opening is made at the bottom of the cavity, and a water box is added: The water box occupies the space at the bottom of the cavity, resulting in a smaller cavity volume. In addition, for common embedded products, the bottom water box is difficult to remove.

[0101] The problem that this embodiment aims to solve is:

[0102] 1) It solves the problem of oil stains carried by the bottom wastewater re-entering the food surface with the steam and contaminating the food.

[0103] 2) Solve the problem that the bottom metal tube design affects cleaning inside the cavity and has limited evaporation effect outside the cavity.

[0104] 3) Solve the problem of the bottom water box taking up a lot of space, resulting in a reduction in cavity volume and the difficulty in removing the water box from the bottom of embedded products.

[0105] This embodiment relates to the field of cooking appliance technology, specifically to the treatment of water accumulation in the cavity 1 of a steam cooking appliance. The cooking appliance provided in this embodiment has the following overall structure: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown. The cooking appliance mainly consists of a cavity 1, an evaporating plate 3, and a filter device 2. The cavity 1 is used for cooking food and has a drain hole 14 at the bottom. The filter device 2 is located at the drain hole 14 and can be membrane, sheet, or block-shaped. It is used to filter oil and food residue from the oil-water mixture at the bottom of the cavity 1. The filtered oil or food residue can be directly cleaned by the user. The evaporating plate 3 is located on the outer bottom of the cavity 1 and consists of a heating element and a metal plate. It is used to store and evaporate accumulated water. The evaporating plate 3 is a metal plate with a relatively sealed space for holding water. It can be formed by sheet metal forming or die casting. The heating element can be located outside, inside, or integrally die-cast with the metal plate. The evaporating plate 3 is provided with a water inlet 34. A certain degree of sealing is ensured between the water inlet 34 and the drain hole 14 at the bottom of the cavity 1. The oil-water mixture at the bottom of the cavity 1 enters the evaporating plate 3 through the water inlet 34 after passing through the filter device 2. It is evaporated by the heat generated by the heating element. The steam generated by evaporation returns to the cavity 1 through the water inlet 34 and the filter device 2. It can be used to reheat food or discharged to the outside of the appliance through a pipe. In addition, for products with a water collection tank at the bottom, an overflow port can be added to the evaporating plate 3 to facilitate the diversion of excess water into the water collection tank through the overflow port and corresponding pipes.

[0106] The metal plate of the evaporation plate 3 can be integrally formed with the heat insulation plate 7 at the bottom of the cavity 1 or the base plate 82 of the whole machine.

[0107] Key technical points: The system uses an external evaporation plate 3 at the bottom of the cavity 1 to evaporate accumulated water; the drain hole 14 at the bottom of the cavity 1 is located, and the oil stains at the bottom of the cavity 1 are filtered out by the filter device 2.

[0108] Beneficial effects: The drainage scheme in this embodiment solves the problem of water accumulation in the cavity. The overall scheme is simple and effective, and has a low cost. The steam generated by the evaporator 3 can return to the cavity 1 to continue heating the food, which not only improves the utilization rate of steam and water, but also reduces the food heating time.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking utensil, characterized in that, include: The cavity includes a cooking chamber, and a drain hole is provided at the bottom of the cooking chamber; An evaporation plate, located outside the cavity, is used to collect liquid flowing out from the drain hole; A filtration device is disposed between the drain hole and the evaporation plate for filtering the liquid discharged from the drain hole; A heating device is used to heat the evaporation pan so that the liquid in the evaporation pan evaporates.

2. The cooking utensil according to claim 1, characterized in that, The steam generated in the evaporator can enter the cooking chamber through the drain hole.

3. The cooking utensil according to claim 1, characterized in that, The evaporation pan includes a water-containing cavity and a water inlet communicating with the water-containing cavity. The water inlet is sealed and connected with the drain hole. The steam generated in the evaporation pan can enter the cooking cavity through the water inlet and the drain hole.

4. The cooking utensil according to claim 1, characterized in that, Also includes: A steam exhaust pipe, connected to the evaporation pan, is used to exhaust the steam generated in the evaporation pan to the cooking cavity or the outside of the cooking appliance.

5. The cooking utensil according to claim 1, characterized in that, The heating device is disposed on the evaporating plate, located inside the evaporating plate, or located outside the evaporating plate; and / or The heating device and the evaporation plate are an integral structure.

6. The cooking utensil according to claim 1, characterized in that, The evaporation pan includes a water-containing cavity and an overflow hole communicating with the water-containing cavity; the cooking appliance also includes: A water collection device, located outside the cavity, is used to collect liquid overflowing from the overflow hole.

7. The cooking utensil according to claim 1, characterized in that, The evaporation pan includes: Chassis; The upper cover is disposed on the chassis and forms a water-containing cavity with the chassis. The upper cover is provided with a water inlet communicating with the water-containing cavity. The water inlet is sealed and communicated with the drain hole. The filter device is installed at the drain hole, the inlet, or between the drain hole and the inlet.

8. The cooking utensil according to claim 1, characterized in that, The evaporation pan includes a base, and the cooking appliance further includes: A heat insulation plate is disposed on the bottom outer side of the cavity, and the chassis and the heat insulation plate are an integral structure; or The outer casing has a cavity installed inside it. The outer casing includes a base plate corresponding to the bottom of the cavity, and the chassis and the base plate are an integral structure.

9. The cooking utensil according to any one of claims 1 to 8, characterized in that, Also includes: A steam generator is used to supply steam into the cooking cavity.

10. The cooking utensil according to any one of claims 1 to 8, characterized in that, The cooking appliance is an oven, microwave oven, steam oven, or a combination microwave-steam-oven.

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