Base assembly and cooking equipment

Abstract

The invention provides a base assembly and cooking equipment, the base assembly is used for the cooking equipment, and the cooking equipment is provided with a cooking cavity. The base assembly comprises a base and a steam generation assembly, the steam generation assembly is connected with the base, a steam inlet, a steam supply port and an inner cavity are formed in the steam generation assembly, a steam flow channel is formed in the inner cavity, and the steam inlet is communicated with the steam flow channel. Steam generated by the steam generation assembly is used for being discharged into the cooking cavity through the steam supply port, and the steam inlet is used for enabling the steam in the cooking cavity to flow back into the steam flow channel. In the heat exchange process of the steam and the water in the inner cavity, the heat of the steam is recycled, and waste of the heat of the steam is avoided.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and more specifically, to a base assembly and a cooking device. Background Technology

[0002] Cooking equipment generates a large amount of high-temperature steam during the cooking process. The high-temperature steam carries a lot of heat. When the steam is released, the heat carried by the steam is also lost, resulting in heat waste. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, in a first aspect, the present invention provides a base assembly for a cooking device, the cooking device having a cooking cavity, the base assembly comprising: a base; a steam generating assembly connected to the base, the steam generating assembly having a steam inlet, a steam supply outlet and an inner cavity, the inner cavity having a steam flow channel, the steam inlet being connected to the steam flow channel; wherein, the steam generated by the steam generating assembly is used to discharge into the cooking cavity through the steam supply outlet, and the steam inlet is used to allow the steam in the cooking cavity to flow back into the steam flow channel.

[0005] The steam generating assembly provided by this invention is mounted on a base. When the steam generating assembly is in operation, it heats the water in the inner cavity, thereby generating steam. The steam generating assembly is provided with a steam supply port, through which the steam generated by the steam generating assembly can be discharged into the cooking cavity, thereby heating the food inside the cooking cavity.

[0006] The inner cavity is equipped with a steam channel, which can heat the food inside the cooking cavity. As the amount of steam in the cooking cavity gradually increases, the steam in the cooking cavity can flow into the steam channel through the steam inlet. Since there is water in the inner cavity, the steam flowing into the steam channel can exchange heat directly or indirectly with the water, thereby reducing the temperature of the steam.

[0007] During the heat exchange process between steam and water in the inner cavity, the heat from the high-temperature steam is transferred to the water, thus achieving heat recovery from the steam and avoiding waste. Furthermore, heating the water with high-temperature steam increases its temperature, allowing the water in the inner cavity to be quickly heated into steam. This reduces the heating time of the steam generating component, thereby lowering its energy consumption and improving energy efficiency.

[0008] In addition, the base assembly of the above-described technical solution provided by the present invention may also have the following additional technical features:

[0009] In some technical solutions, the steam that flows back into the steam channel can optionally be discharged to the outside through the end of the steam channel.

[0010] The steam outlet is connected to the outside of the cooking equipment. Steam flows through the steam channel and is discharged outward. That is, the steam that has been cooled by heat exchange in the steam channel can be discharged from the cooking equipment. Since the temperature of the steam discharged from the cooking equipment is low, users around the cooking equipment are less likely to be scalded by the steam, which helps to improve the safety of users during the cooking process.

[0011] In some technical solutions, optionally, the inner cavity is used to store water, and the steam flow channel is connected to the inner cavity, so that the steam flowing back into the steam flow channel is used to exchange heat with the water in the inner cavity.

[0012] In this design, the steam channel is connected to the inner cavity; specifically, an opening is provided at the bottom of the steam channel, through which it connects to the inner cavity. After the steam flows into the steam channel, it exchanges heat with the water in the inner cavity. Because the steam channel is connected to the inner cavity, the steam can directly contact the water, allowing for direct heat exchange and improving the heat exchange efficiency of the steam, thus ensuring that the steam discharged from the cooking equipment has a lower temperature.

[0013] In some technical solutions, the steam supply port and the steam flow channel are optionally independent of each other.

[0014] Steam generated by the steam generating component is discharged into the cooking chamber through the steam supply port. The steam in the cooking chamber can flow into the steam channel. When the steam supply port and the steam channel are set to be independent of each other, the steam returning to the steam channel is not easily discharged back into the cooking chamber through the steam supply port, thereby avoiding the mixing of the steam discharged into the cooking chamber and the steam returning to the steam channel, and ensuring the independence of the steam used for heating and the steam used for external discharge.

[0015] In some technical solutions, optionally, the steam generating assembly is provided with a maximum liquid level line, with a portion of the steam flow channel above the maximum liquid level line, based on the bottom wall of the inner cavity.

[0016] A portion of the steam flow channel is above the maximum liquid level line. Even if the liquid level in the inner cavity has reached the maximum liquid level line, a portion of the space in the steam flow channel is still above the liquid level in the inner cavity. The space above the liquid level in the steam flow channel is used for steam flow.

[0017] When the user fills the inner cavity with water, the water level in the inner cavity usually does not exceed the maximum liquid level line, while part of the steam flow channel is above the maximum liquid level line. Therefore, it can be ensured that part of the steam flow channel is not filled with water, thus providing space for the steam to flow and ensuring that the steam can flow and exchange heat in the steam flow channel.

[0018] In some technical solutions, optionally, the steam generating assembly is provided with a minimum liquid level line, with a portion of the steam flow channel below the minimum liquid level line relative to the bottom wall of the inner cavity.

[0019] A minimum liquid level line is set on the inner cavity to indicate the water level to the user. When the water level in the inner cavity approaches the minimum liquid level line, the user needs to add water to the inner cavity to prevent the steam generator from burning dry.

[0020] A portion of the steam flow channel is below the minimum liquid level line. Even when the liquid level in the inner cavity is close to the minimum liquid level line, a portion of the water in the inner cavity is still higher than the bottom of the steam flow channel. The water acts as a barrier to the steam, ensuring that the steam can only flow within the steam flow channel and is less likely to flow out. This ensures stable heat exchange between the steam and water, and also ensures that the steam flow channel can stably guide the steam, improving the heat exchange effect of the steam. It also ensures that the steam can be stably discharged from the cooking equipment, preventing some of the recovered steam from accumulating in the steam generating component.

[0021] In some technical solutions, optionally, the steam generating assembly includes: a guide member, on which a steam flow channel is provided, and a portion of the guide member is submerged in water in its inner cavity.

[0022] The steam guide is equipped with a steam flow channel, which guides the recovered steam to flow along it. Under the guidance of the steam guide, the steam exchanges heat with the water along the set path, and the steam after heat exchange can flow to the outside of the cooking equipment.

[0023] A portion of the guide element is submerged in water, allowing the water to exchange heat with the guide element. When steam flows in the steam channel, the steam can indirectly exchange heat with the water through the guide element.

[0024] Alternatively, an opening can be provided at the bottom of the guide component, allowing the steam channel inside the guide component to directly contact the water, thus enabling direct heat exchange between the steam and the water. Part of the guide component is submerged in water, which acts as a barrier to the steam, ensuring that the steam can only flow within the steam channel and is less likely to escape. This guarantees stable heat exchange between the steam and water, and also ensures that the steam channel stably guides the steam.

[0025] In some technical solutions, optionally, the guide member is provided with a flow channel notch, which is connected to the steam flow channel. Steam in the steam flow channel is discharged outward through the flow channel notch. Taking the bottom wall in the inner cavity as a reference, the opening area of ​​the portion of the flow channel notch above the highest liquid level line is S, and S satisfies S≥500mm. 2 .

[0026] Steam in the steam flow channel is discharged outwards through the channel opening. To ensure a stable discharge of steam, the channel opening must not be completely submerged by water. In this design, a portion of the channel opening is positioned above the highest liquid level line to guarantee a stable discharge of steam. Furthermore, the opening area of ​​the portion of the channel opening above the highest liquid level line is greater than or equal to 500 mm². 2 This ensures that the flow channel gap has sufficient space for steam to flow, thereby ensuring smooth steam discharge.

[0027] In some technical solutions, the length of the guide element may optionally be greater than the length of the steam flow channel.

[0028] Along the extension direction of the guide, the extension length of the guide is greater than the extension length of the steam flow channel. For example, the steam inlet is not located on the side of the guide, but is located inside the steam flow channel to avoid interference between the steam inlet and other components.

[0029] In some technical solutions, the steam generating assembly may optionally include: a water tank; a drip tray connected to the water tank, with an inner cavity located between the drip tray and the water tank, a guide member located in the inner cavity, a steam inlet and a steam supply port located on the drip tray, and a cooking chamber located above the drip tray.

[0030] The water tank is used to store water, and the drip tray is located at the opening of the water tank. An inner cavity is formed between the drip tray and the water tank. When the steam generating component is running, the water in the water tank is heated and steam is generated in the water tank. The steam is then discharged into the cooking chamber through the steam supply port on the drip tray. Since the cooking chamber is located above the drip tray, the steam discharged from the steam supply port directly enters the cooking chamber, thereby ensuring that the high-temperature steam can quickly heat the food.

[0031] The cooking cavity is located above the drip tray. During cooking, the drip tray collects and holds the juices flowing from the food, allowing users to easily manage these juices and improving the usability of the cooking equipment. Using the drip tray as the enclosure for the inner cavity eliminates the need for additional components that work with the water tank, simplifying the structure of the cooking equipment.

[0032] In some technical solutions, optionally, the first side of the drip tray is oriented toward the cooking cavity, and the steam inlet protrudes from the first side of the drip tray.

[0033] The drip tray is used to collect the dripping juice from the food. The steam inlet protrudes from the top of the drip tray, making it difficult for the juice on the drip tray to enter the steam inlet. This prevents the juice from the food from entering the steam channel through the steam inlet and contaminating the water in the inner cavity.

[0034] In some technical solutions, the steam generating assembly may optionally include a separator located in the inner cavity, which is used to separate the steam supply port and the steam flow path.

[0035] A separator is installed in the inner cavity to separate the steam supply port and the steam channel, making it difficult for the steam flowing to the steam supply port and the steam in the steam channel to mix. Therefore, the steam generated by the heated water does not easily flow into the steam channel, and the steam returning to the steam channel is not easily discharged back into the cooking cavity. This ensures that the steam flowing into the cooking cavity and the steam returning to the steam channel are two nearly independent parts, thereby ensuring that the steam discharged into the cooking cavity has a high temperature and ensures the heating effect on the food.

[0036] In some technical solutions, the separator is optionally sealed to the drip tray to separate the steam supply port and the steam flow path.

[0037] The top of the separator is sealed to the drip tray, so that there is no gap between the top of the separator and the drip tray, preventing steam from passing over the separator from the top, thereby preventing the steam flowing back into the steam channel from mixing with the newly generated steam.

[0038] In some technical solutions, optionally, the partition is provided with a steam generating chamber, which is connected to the steam supply port, and the inner cavity is connected to the steam generating chamber.

[0039] A steam generating chamber is provided within the partition, and the steam generating chamber is connected to the steam supply port. Water in the steam generating chamber is heated to produce steam, which is then discharged into the cooking chamber through the steam supply port. The partition defines a single steam generating chamber with a small amount of water. Therefore, the small amount of water in the steam generating chamber can be quickly heated into steam, which helps to increase the steam generation rate and thus improves the heating effect on the food.

[0040] A water inlet is provided on the separator, which connects the steam generating chamber and the inner chamber. Water in the inner chamber can be injected into the steam generating chamber through the water inlet. When the water in the steam generating chamber is heated into steam, water in the inner chamber is replenished into the steam generating chamber through the water inlet to prevent the water in the steam generating chamber from drying out. According to the principle of communicating vessels, the liquid level in the steam generating chamber is basically the same as the liquid level in the inner chamber, thus ensuring that a small amount of water is maintained in the steam generating chamber.

[0041] In some technical solutions, optionally, the minimum distance between the flow guide and the separator is greater than or equal to 5 mm.

[0042] A portion of the steam flow channel is located between the guide and the partition, limiting the distance between the guide and the partition to be greater than or equal to 5mm, ensuring that the portion of the steam flow channel between the guide and the partition has a large width, and ensuring smooth steam flow within the steam flow channel.

[0043] In some technical solutions, the steam generating assembly may optionally include: an inner cylinder located inside the steam generating chamber, the top of the inner cylinder being connected to a partition, and the sides of the inner cylinder being spaced apart from the sides of the partition.

[0044] The inner cylinder is located inside the steam generating chamber and is connected to the partition. The inner cylinder occupies part of the space inside the steam generating chamber, thereby reducing the water storage space inside the steam generating chamber. When there is less water in the steam generating chamber, the water in the steam generating chamber is heated faster, which can further increase the steam generation speed. When using the cooking equipment, the cooking chamber can be filled with steam in a short time, which is beneficial to improve the cooking speed of the food.

[0045] The top of the inner cylinder is connected to the divider, preventing the inner cylinder from wobbling relative to the divider. During steam generation in the steam chamber, the inner cylinder is less likely to collide with the divider due to the steam, thus avoiding noise during cooking. A gap exists between the side of the inner cylinder and the side of the divider; this gap is used to hold water, allowing for rapid steam generation within this area.

[0046] In some technical solutions, the bottom of the inner cylinder is optionally spaced apart from the bottom wall of the steam generating chamber, and the bottom of the inner cylinder is provided with a guide port that is connected to the steam generating chamber.

[0047] The bottom of the inner cylinder is provided with a guide port, and the inside of the inner cylinder is connected to the steam generating chamber through the guide port. Therefore, some of the water in the steam generating chamber can flow into the inside of the inner cylinder through the guide port.

[0048] During the process of placing the inner cylinder and partition into the inner cavity, the inner cylinder will be subject to the buoyancy of the water, causing it to float upwards. This prevents the inner cylinder and partition from being stably placed at the bottom of the inner cavity. By providing a vent at the bottom of the inner cylinder, water from the steam generating chamber can flow into the inner cylinder, reducing the buoyancy of the water and making it easier to place the inner cylinder and partition at the bottom of the inner cavity.

[0049] In some technical solutions, optionally, the side of the juice receiving tray extends out of the base, and a portion of the juice receiving tray extending out of the base is provided with a steam outlet. The steam outlet is connected to the steam flow channel, and the steam flowing back into the steam flow channel is discharged outward through the steam outlet.

[0050] The steam outlet is located on the side of the drip tray, so the steam in the steam flow channel can be directly discharged to the outside through the steam outlet on the drip tray. Since both the steam inlet and outlet are located on the drip tray, there is no need to install a steam discharge outlet on the water tank, which reduces the difficulty of manufacturing the water tank.

[0051] In one possible application, the steam outlet is opened upwards, so that when the steam is discharged from the steam outlet, the steam is less likely to rush towards the user located on the side of the cooking device, thus avoiding direct contact between the steam and the user and reducing the chance of the user being burned.

[0052] In some technical solutions, optionally, the steam generating component is located inside the base, the base is provided with an air outlet, and the steam flow channel is connected to the air outlet.

[0053] The water tank is located inside the base, which protects the water tank. An air vent is provided on the base so that steam can be released to the outside.

[0054] Steam flows through the steam channel and is discharged outward through the steam outlet. That is, the steam that has been cooled by heat exchange in the steam channel can be discharged from the cooking equipment. Since the temperature of the steam discharged from the cooking equipment is low, users around the cooking equipment are less likely to be burned by the steam, which helps to improve the safety of users during the cooking process.

[0055] In some technical solutions, the cooking device may optionally include a fan connected to the base, which is used to draw steam from the steam channel to the outlet.

[0056] When the fan is running, it draws steam from the steam flow channel to the outlet. Driven by the fan, the steam is discharged to the outside of the cooking equipment at a high flow rate. Due to the rapid flow and diffusion of the steam, the contact area between the steam and the surrounding air is large, and the water molecules in the steam mix quickly with the air, making it difficult to form visible water droplets or condensation. At the same time, the high-speed flow of steam also reduces the possibility of water molecules accumulating in one place, thus avoiding the formation of condensation.

[0057] In some technical solutions, optionally, the base is provided with an installation cavity, the fan is located in the installation cavity, and the steam flow channel and the air outlet are connected through the installation cavity.

[0058] An installation cavity is provided on the base, which is used to install a fan. The installation cavity is used to connect the steam outlet and the air outlet. By placing the fan in the installation cavity, the airflow into the installation cavity mainly comes from the steam outlet. The fan is less likely to draw air out of the base, thus ensuring that the steam in the steam channel is discharged at a high flow rate, further preventing the steam discharged from the cooking equipment from forming condensate.

[0059] In some technical solutions, optionally, the opening area of ​​the air outlet is greater than or equal to 50mm².2 .

[0060] To ensure that steam can be quickly expelled from the cooking equipment, the steam outlet needs to have a large opening area. In this design, the opening area of ​​the steam outlet is limited to greater than or equal to 50mm². 2 This ensures that steam can be discharged smoothly, which helps the steam form barely visible water droplets or condensate.

[0061] In some technical solutions, optionally, the length of the steam flow channel is greater than or equal to 1000 mm along the extension direction of the steam flow channel.

[0062] The longer the steam flow channel, the longer the steam flows within it, which increases the heat exchange time between steam and water and improves the heat recovery effect.

[0063] In some technical solutions, the base assembly may optionally include a filter screen located within the steam flow channel.

[0064] Steam can pass through a filter screen, but the filter screen can reduce the flow speed of steam in the steam channel, thereby prolonging the flow time of steam in the steam channel and thus increasing the heat exchange time between steam and water.

[0065] In a second aspect, the present invention provides a cooking device including a base assembly as described in the first aspect.

[0066] In some technical solutions, the cooking equipment may optionally include a steamer assembly, which is mounted on the base assembly and has a cooking chamber, with a steam supply port and a steam inlet connected to the cooking chamber.

[0067] A steam channel is provided on one side of the drip tray. The steam can heat the food in the cooking cavity. As the amount of steam in the cooking cavity gradually increases, the steam in the cooking cavity can flow into the steam channel through the steam inlet. The steam flowing back into the steam channel is used to exchange heat with the chamber that generates the steam, thereby realizing the recovery of steam heat and avoiding the waste of steam heat.

[0068] In some technical solutions, the cooking device may optionally include a steam return pipe, the first end of which is connected to a steam inlet, and the second end of which extends toward the top of the cooking chamber.

[0069] One end of the steam return pipe is connected to the steam inlet, and the other end extends to the top of the cooking chamber. After steam flows into the cooking chamber through the steam supply port, it rises within the chamber. Due to the height of the steam return pipe, steam only flows into the pipe when it reaches the top of the chamber. Therefore, with some steam reaching the top, the chamber is essentially filled, resulting in a higher temperature throughout and ensuring even heating of the food.

[0070] By installing a steam return pipe on the steam inlet, steam is less likely to flow directly into the steam inlet, ensuring that the steam can effectively heat the food.

[0071] In some technical solutions, optionally, the distance between the second end of the steam return pipe and the side wall of the cooking cavity is L1, where L1 satisfies L1≤50mm.

[0072] Steam in the cooking chamber flows to the steam channel through the second end of the steam return pipe. The closer the second end of the steam return pipe is to the side wall of the cooking chamber, the longer it takes for steam in the cooking chamber to flow to the steam return pipe.

[0073] Specifically, the distance between the second end of the steam return pipe and the side wall of the cooking cavity is L1, where L1 ≤ 50mm. Therefore, the distance between the second end of the steam return pipe and the side wall of the cooking cavity is small, and the second end of the steam return pipe is far from the middle and above of the drip tray. During the process of steam flowing towards the top of the cooking cavity, the steam will not directly pass through the second end of the steam return pipe. When the steam flows to the top of the cooking cavity, it will flow a certain distance along the top of the cooking cavity towards the side of the cooking cavity before flowing into the steam return pipe. In this way, the flow time of the steam in the cooking cavity is increased, which helps to ensure that the cooking cavity has a higher temperature and improves the heating effect on the food.

[0074] In some technical solutions, optionally, the distance between the orthographic projection of the second end of the steam return pipe on the steam generating assembly and the steam supply port is L2, where L2 satisfies L2≥50mm.

[0075] Steam in the cooking cavity flows to the steam channel through the second end of the steam return pipe. The second end of the steam channel has a positive projection on the drip tray. The greater the distance between the positive projection and the steam supply port, the longer it takes for steam in the cooking cavity to flow to the steam return pipe.

[0076] For example, if the steam supply port is located in the middle of the drip tray, and the distance between the orthographic projection of the second end of the steam return pipe on the drip tray and the steam supply port is small, it means that the second end of the steam return pipe is close to the upper middle part of the drip tray. When the steam flows to the top of the cooking cavity, the steam will pass directly through the second end of the steam return pipe, resulting in a shorter steam flow time in the cooking cavity.

[0077] In this embodiment, the distance between the projection of the second end of the steam return pipe onto the drip tray and the steam supply port is L2, where L2 ≥ 50 mm. Within this range, the second end of the steam return pipe is far from the upper center of the drip tray. During the steam flow towards the top of the cooking cavity, the steam will not directly pass through the second end of the steam return pipe. After the steam flows to the top of the cooking cavity, it will flow a certain distance along the top of the cooking cavity towards the side of the cooking cavity before flowing into the steam return pipe. By doing so, the flow time of the steam in the cooking cavity is increased, which helps to ensure a higher temperature in the cooking cavity and improve the heating effect on the food.

[0078] In some technical solutions, the steamer assembly optionally includes: a steamer, disposed on a base assembly; and a lid, disposed on the steamer, so that the lid and the interior of the steamer form a closed space.

[0079] The ingredients can be placed in the steamer, and the space between the lid and the steamer is the cooking cavity. When the lid is on the steamer, the lid and the steamer are in a closed state, that is, there are no vents on the lid for venting, so that the gas in the cooking cavity will not be released out through the lid, thus ensuring that the cooking equipment can recover the heat of the steam and reduce the temperature of the steam released outward.

[0080] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0081] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0082] Figure 1 One of the structural schematic diagrams of the cooking device in an embodiment of the present invention is shown;

[0083] Figure 2 A second schematic diagram of the structure of the cooking device in an embodiment of the present invention is shown;

[0084] Figure 3 One of the structural schematic diagrams of the base assembly in an embodiment of the present invention is shown;

[0085] Figure 4 A second schematic diagram of the base assembly in an embodiment of the present invention is shown;

[0086] Figure 5 A schematic diagram of the juice receiving tray and the flow guide element in an embodiment of the present invention is shown;

[0087] Figure 6A partial schematic diagram of the base assembly in an embodiment of the present invention is shown;

[0088] Figure 7 A schematic diagram of the structure of the separator and inner cylinder in an embodiment of the present invention is shown;

[0089] Figure 8 The third schematic diagram of the cooking device in an embodiment of the present invention is shown.

[0090] Figure label:

[0091] 100 Base assembly, 110 Base, 111 Air outlet, 112 Mounting cavity, 120 Steam generating assembly, 121 Steam inlet, 122 Steam supply port, 123 Inner cavity, 124 Steam flow channel, 125 Maximum liquid level line, 126 Minimum liquid level line, 127 Water tank, 128 Juice tray, 129 Divider, 130 Steam generating cavity, 131 Water inlet, 132 Inner cylinder, 133 Steam outlet, 134 Heater, 135 Through port, 140 Flow guide, 141 Flow channel notch, 150 Fan, 160 Filter screen, 200 Steamer assembly, 210 Cooking cavity, 220 Steamer, 230 Lid, 300 Steam return pipe. Detailed Implementation

[0092] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0093] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0094] The following reference Figures 1 to 8 The base assembly and cooking apparatus provided according to some embodiments of the present invention are described.

[0095] Combination Figure 2 , Figure 3 and Figure 5As shown, in an embodiment of the present invention, a base assembly 100 is provided for a cooking device having a cooking cavity 210. The base assembly 100 includes a base 110 and a steam generating assembly 120, which is connected to the base 110. The steam generating assembly 120 is provided with a steam inlet 121, a steam supply port 122, and an inner cavity 123. A steam flow channel 124 is provided in the inner cavity 123, and the steam inlet 121 communicates with the steam flow channel 124. The steam generated by the steam generating assembly 120 is discharged into the cooking cavity 210 through the steam supply port 122, and the steam inlet 121 is used to allow steam in the cooking cavity 210 to flow back into the steam flow channel 124.

[0096] Figure 2 The middle arrow is used to indicate the direction of steam flow.

[0097] The steam generating assembly 120 provided by this invention is mounted on the base 110. When the steam generating assembly 120 is in operation, it heats the water in the inner cavity 123, thereby generating steam. The steam generating assembly 120 is provided with a steam supply port 122, through which the steam generated by the steam generating assembly 120 can be discharged into the cooking cavity 210, thereby heating the food inside the cooking cavity 210.

[0098] Figure 3 The arrows inside the steam flow channel 124 are used to indicate the direction of steam flow.

[0099] The inner cavity 123 is provided with a steam flow channel 124, which can heat the food in the cooking cavity 210. As the amount of steam in the cooking cavity 210 gradually increases, the steam in the cooking cavity 210 can flow into the steam flow channel 124 through the steam inlet 121. Since there is water in the inner cavity 123, the steam flowing into the steam flow channel 124 can exchange heat directly or indirectly with the water, thereby reducing the temperature of the steam.

[0100] During the heat exchange process between steam and water in the inner cavity 123, the heat from the high-temperature steam is transferred to the water, thus achieving heat recovery from the steam and avoiding waste. Furthermore, heating the water with high-temperature steam increases the water temperature, allowing the water in the inner cavity 123 to be rapidly heated into steam. This reduces the heating time of the steam generating component 120, thereby reducing the energy consumption of the steam generating component 120 and improving energy utilization efficiency.

[0101] In some embodiments, the steam returning to the steam channel 124 may be discharged to the outside through the end of the steam channel 124.

[0102] Steam outlet 133 is connected to the outside of the cooking equipment. Steam flows through steam channel 124 and is discharged to the outside. That is, the steam that has been cooled by heat exchange in steam channel 124 can be discharged from the cooking equipment. Since the temperature of the steam discharged from the cooking equipment is low, users around the cooking equipment are less likely to be scalded by the steam, which helps to improve the safety of users during the cooking process.

[0103] In some embodiments, the inner cavity 123 is optionally used to store water, and the steam flow channel 124 is connected to the inner cavity 123. The steam flowing back into the steam flow channel 124 is used to exchange heat with the water in the inner cavity 123.

[0104] In this design, the steam channel 124 is connected to the inner cavity 123. Specifically, the bottom of the steam channel 124 has an opening, through which it connects to the inner cavity 123. After the steam flows into the steam channel 124, it exchanges heat with the water in the inner cavity 123. Because the steam channel 124 is connected to the inner cavity 123, the steam can directly contact the water, allowing for direct heat exchange. This improves the heat exchange efficiency of the steam and ensures that the steam discharged from the cooking equipment has a lower temperature.

[0105] Combination Figure 2 and Figure 3 As shown, in some embodiments, the steam supply port 122 and the steam flow channel 124 are optionally independent of each other.

[0106] Steam generated by steam generating assembly 120 is discharged to cooking chamber 210 through steam supply port 122. Steam in cooking chamber 210 can flow to steam channel 124. When steam supply port 122 and steam channel 124 are set to be independent of each other, steam flowing back to steam channel 124 is not easily discharged back to cooking chamber 210 through steam supply port 122, thereby avoiding the mixing of steam discharged to cooking chamber 210 and steam flowing back to steam channel 124, ensuring the independence of steam used for heating and steam used for external discharge.

[0107] Combination Figure 5 and Figure 6 As shown, in some embodiments, optionally, the steam generating assembly 120 is provided with a maximum liquid level line 125, and a portion of the steam flow channel 124 is higher than the maximum liquid level line 125, with the bottom wall of the inner cavity 123 as a reference.

[0108] A portion of the steam flow channel 124 is above the highest liquid level line 125. Even if the liquid level in the inner cavity 123 has reached the highest liquid level line 125, a portion of the space in the steam flow channel 124 is still above the liquid level in the inner cavity 123. The space above the liquid level in the steam flow channel 124 is used for steam flow.

[0109] When the user injects water into the inner cavity 123, the water in the inner cavity 123 usually does not exceed the maximum liquid level line 125, while a part of the steam flow channel 124 is higher than the maximum liquid level line 125. Therefore, it can be ensured that a part of the space in the steam flow channel 124 is not filled with water, thereby providing space for the flow of steam and ensuring that steam can flow and exchange heat in the steam flow channel 124.

[0110] Combination Figure 5 and Figure 6 As shown, in some embodiments, optionally, the steam generating assembly 120 is provided with a minimum liquid level line 126, and a portion of the steam flow channel 124 is below the minimum liquid level line 126 with reference to the bottom wall of the inner cavity 123.

[0111] The inner cavity 123 is equipped with a minimum liquid level line 126, which serves as a reminder to the user. When the liquid level of the water in the inner cavity 123 approaches the minimum liquid level line 126, the user needs to add water to the inner cavity 123 to prevent the steam generating component 120 from burning dry.

[0112] A portion of the steam flow channel 124 is below the minimum liquid level line 126. Even if the liquid level in the inner cavity 123 is close to the minimum liquid level line 126, a portion of the water in the inner cavity 123 is still higher than the bottom of the steam flow channel 124. The water acts as a barrier to the steam, ensuring that the steam can only flow within the steam flow channel 124 and is less likely to flow out of the steam flow channel 124. This ensures that the steam can have a stable heat exchange with the water and that the steam flow channel 124 can stably guide the steam, improving the heat exchange effect of the steam and ensuring that the steam can be stably discharged from the cooking equipment, thus preventing some of the recovered steam from accumulating in the steam generating component 120.

[0113] like Figure 6 As shown, in some embodiments, optionally, the steam generating assembly 120 includes: a guide 140, on which a steam flow channel 124 is provided, and a portion of the guide 140 is submerged in water in the inner cavity 123.

[0114] The guide member 140 is provided with a steam flow channel 124. The guide member 140 is used to guide the recovered steam so that the steam can flow along the guide member 140. Under the guiding action of the guide member 140, the steam exchanges heat with the water along the set route, and the steam after heat exchange can flow to the outside of the cooking equipment.

[0115] A portion of the guide member 140 is submerged in water, allowing the water to exchange heat with the guide member 140. When steam flows in the steam channel 124, the steam can indirectly exchange heat with the water through the guide member 140.

[0116] Alternatively, an opening can be provided at the bottom of the guide member 140, allowing the steam channel 124 inside the guide member 140 to directly contact the water, thereby enabling direct heat exchange between the steam and the water. A portion of the guide member 140 is submerged in water, which acts as a barrier to the steam, ensuring that the steam can only flow within the steam channel 124 and is less likely to flow out. This guarantees both stable heat exchange between the steam and water and stable steam channel 124's function of guiding the steam.

[0117] Combination Figure 3 and Figure 6 As shown, in some embodiments, optionally, the guide member 140 is provided with a flow channel notch 141, which is connected to the steam flow channel 124. The steam in the steam flow channel 124 is discharged outward through the flow channel notch 141. Taking the bottom wall in the inner cavity 123 as a reference, the opening area of ​​the portion of the flow channel notch 141 above the highest liquid level line 125 is S, where S satisfies S≥500mm. 2 .

[0118] Steam within the steam channel 124 is discharged outwards through the channel opening 141. To ensure stable steam discharge, the channel opening 141 must not be completely submerged by water. In this design, a portion of the channel opening 141 is positioned above the highest liquid level line 125, thus ensuring stable steam discharge through the channel opening 141. Furthermore, the opening area of ​​the portion of the channel opening 141 above the highest liquid level line 125 is greater than or equal to 500 mm². 2 This ensures that the flow channel gap 141 has sufficient space for steam to flow, thereby ensuring smooth steam discharge.

[0119] In some embodiments, the length of the guide 140 may be greater than the length of the steam channel 124.

[0120] Along the extension direction of the guide member 140, the extension length of the guide member 140 is greater than the extension length of the steam flow channel 124. For example, the steam inlet 121 is not located on the side of the guide member 140, but is located inside the steam flow channel 124 to avoid interference between the steam inlet 121 and other components.

[0121] Combination Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the steam generating assembly 120 further includes: a water tank 127 and a drip tray 128, the drip tray 128 being connected to the water tank 127, an inner cavity 123 being located between the drip tray 128 and the water tank 127, a guide member 140 being located in the inner cavity 123, a steam inlet 121 and a steam supply port 122 being provided on the drip tray 128, and a cooking chamber 210 being located above the drip tray 128.

[0122] The water tank 127 is used to store water, and the drip tray 128 is set at the opening of the water tank 127. An inner cavity 123 is formed between the drip tray 128 and the water tank 127. When the steam generating component 120 is running, the water in the water tank 127 is heated. After steam is generated in the water tank 127, the steam is discharged into the cooking cavity 210 through the steam supply port 122 on the drip tray 128. Since the cooking cavity 210 is located above the drip tray 128, the steam discharged from the steam supply port 122 directly enters the cooking cavity 210, thereby ensuring that the high-temperature steam can quickly heat the food.

[0123] The cooking cavity 210 is located above the drip tray 128. During cooking, the drip tray 128 is used to collect and collect the juices flowing from the food, making it convenient for users to centrally process the juices and improving the ease of use of the cooking equipment. By using the drip tray 128 as the enclosure of the inner cavity 123, there is no need for additional components that cooperate with the water tank 127, which simplifies the structure of the cooking equipment.

[0124] Water tank 127 is mounted on base 110.

[0125] In one possible application, the juice tray 128 is placed on the water tank 127, which makes it convenient for the user to pour the juice on the juice tray 128 and to clean the inside of the water tank 127.

[0126] In one possible embodiment, the flow guide 140 is connected to the juice tray 128.

[0127] The steam generating assembly 120 also includes a heater 134, which is disposed on the water tank 127 or the base 110, and the heater 134 is used to heat the water in the inner cavity 123.

[0128] like Figure 5 As shown, in some embodiments, optionally, the first side of the drip tray 128 is directed toward the cooking cavity 210, and the steam inlet 121 protrudes from the first side of the drip tray 128.

[0129] The drip tray 128 is used to collect the dripping juice from the food. The steam inlet 121 protrudes from the top of the drip tray 128, so that the juice on the drip tray 128 is not easy to enter the steam inlet 121. This prevents the juice from the food from entering the steam channel 124 through the steam inlet 121 and prevents the juice from contaminating the water in the inner cavity 123.

[0130] Combination Figure 2 and Figure 7 As shown, in some embodiments, the steam generating assembly 120 may optionally include a separator 129 located in the inner cavity 123, the separator 129 being used to separate the steam supply port 122 and the steam flow channel 124.

[0131] A separator 129 is provided in the inner cavity 123. The separator 129 can separate the steam supply port 122 and the steam flow channel 124, so that the steam flowing to the steam supply port 122 and the steam in the steam flow channel 124 are not easily mixed. Therefore, the steam generated by the heated water is not easily flowed to the steam flow channel 124, and the steam flowing back to the steam flow channel 124 is not easily discharged into the cooking cavity 210. This ensures that the steam flowing to the cooking cavity 210 and the steam flowing back to the steam flow channel 124 are two nearly independent parts of steam, thereby ensuring that the steam discharged into the cooking cavity 210 has a high temperature and ensures the heating effect on the food.

[0132] In one possible application, the divider 129 is placed inside the water tank 127, or the divider 129 is connected to the water tank 127.

[0133] In one possible application, the steam flow channel 124 is distributed circumferentially along the separator 129.

[0134] During the flow of steam within the steam channel 124, the longer the steam flows, the longer the heat exchange time between the steam and water, resulting in better heat recovery from the steam by the water. Therefore, the heat exchange time between the steam and water can be increased by increasing the length of the steam channel 124.

[0135] When the steam flow channel 124 is distributed circumferentially along the partition 129, it means that the steam flow channel 124 extends circumferentially along the partition 129. Therefore, multiple bends are formed on the steam flow channel 124. The steam flow channel 124 starts from the steam inlet 121 and passes through at least one bend during the flow process in the steam flow channel 124. In this way, the length of the steam flow channel 124 can be increased, thereby increasing the heat exchange time between steam and water and improving the heat recovery effect.

[0136] In some embodiments, optionally, the separator 129 is sealed to the drip tray 128 to separate the steam supply port 122 and the steam passage 124.

[0137] The top of the separator 129 is sealed to the juice receiving tray 128, so that there is no gap between the top of the separator 129 and the juice receiving tray 128, preventing steam from passing over the separator 129 from the top, thereby preventing the steam flowing back into the steam channel 124 from mixing with the newly generated steam.

[0138] The juice tray 128 overlaps the separator 129, and the separator 129 and the juice tray 128 fit together to achieve a seal between them. Alternatively, the separator 129 is integrally formed into the juice tray 128, so that the separator 129 and the juice tray 128 are mutually sealed.

[0139] Combination Figure 2 and Figure 7 As shown, in some embodiments, optionally, the partition 129 is provided with a steam generating chamber 130, which is connected to the steam supply port 122, and the inner cavity 123 is connected to the steam generating chamber 130.

[0140] A steam generating chamber 130 is provided within the partition 129, and the steam generating chamber 130 is connected to the steam supply port 122. Water in the steam generating chamber 130 is heated to generate steam, which is then discharged into the cooking chamber 210 through the steam supply port 122. The partition 129 defines a single steam generating chamber 130. Since the steam generating chamber 130 contains relatively little water, the small amount of water can be quickly heated into steam, which improves the steam generation rate and thus enhances the heating effect on the food.

[0141] A water inlet 131 is provided on the separator 129, which connects the steam generating chamber 130 and the inner chamber 123. Water in the inner chamber 123 can be injected into the steam generating chamber 130 through the water inlet 131. When the water in the steam generating chamber 130 is heated into steam, water in the inner chamber 123 is replenished into the steam generating chamber 130 through the water inlet 131 to prevent the water in the steam generating chamber 130 from drying out. According to the principle of communicating vessels, the liquid level in the steam generating chamber 130 is basically the same as the liquid level in the inner chamber 123, thereby ensuring that a small amount of water is maintained in the steam generating chamber 130.

[0142] In some embodiments, the minimum distance between the guide member 140 and the separator 129 may be greater than or equal to 5 mm.

[0143] A portion of the steam flow channel 124 is located between the guide member 140 and the partition member 129, limiting the distance between the guide member 140 and the partition member 129 to be greater than or equal to 5 mm, ensuring that the portion of the steam flow channel 124 between the guide member 140 and the partition member 129 has a larger width, and ensuring smooth flow of steam within the steam flow channel 124.

[0144] Combination Figure 2 and Figure 7 As shown, in some embodiments, the steam generating assembly 120 may optionally include an inner cylinder 132 located inside the steam generating chamber 130, with the top of the inner cylinder 132 connected to the partition 129, and the sides of the inner cylinder 132 spaced apart from the sides of the partition 129.

[0145] The inner cylinder 132 is located inside the steam generating chamber 130 and is connected to the partition 129. The inner cylinder 132 occupies part of the space inside the steam generating chamber 130, thereby reducing the water storage space inside the steam generating chamber 130. When there is less water in the steam generating chamber 130, the water in the steam generating chamber 130 is heated faster, which can further improve the steam generation speed. When using the cooking equipment, the cooking chamber 210 can be filled with steam in a short time, which is beneficial to improve the cooking speed of the food.

[0146] The top of the inner cylinder 132 is connected to the divider 129, preventing the inner cylinder 132 from wobbling relative to the divider 129. During steam generation in the steam generating chamber 130, the inner cylinder 132 is less likely to collide with the divider 129 under the influence of steam, thus avoiding noise during cooking. A gap exists between the side of the inner cylinder 132 and the side of the divider 129; this gap is used to store water, allowing for rapid steam generation within this gap.

[0147] Combination Figure 2 and Figure 7 As shown, in some embodiments, optionally, the bottom of the inner cylinder 132 is spaced apart from the bottom wall of the steam generating chamber 130, and the bottom of the inner cylinder 132 is provided with a guide port 135, which is connected to the steam generating chamber 130.

[0148] The bottom of the inner cylinder 132 is provided with a guide port 135. The interior of the inner cylinder 132 is connected to the steam generating chamber 130 through the guide port 135. Therefore, a part of the water in the steam generating chamber 130 can flow into the interior of the inner cylinder 132 through the guide port 135.

[0149] During the process of placing the inner cylinder 132 and the partition 129 into the inner cavity 123, the inner cylinder 132 will be subject to the buoyancy of the water, causing it to float upwards. This prevents the inner cylinder 132 and the partition 129 from being stably placed at the bottom of the inner cavity 123. By providing a guide port 135 at the bottom of the inner cylinder 132, water in the steam generating chamber 130 can flow into the interior of the inner cylinder 132 through the guide port 135, reducing the buoyancy of the water on the inner cylinder 132, thus facilitating the placement of the inner cylinder 132 and the partition 129 towards the bottom of the inner cavity 123.

[0150] like Figure 8 As shown, in some embodiments, optionally, the side of the juice receiving tray 128 extends out of the base 110, and a portion of the juice receiving tray 128 extending out of the base 110 is provided with a steam outlet 133. The steam outlet 133 is connected to the steam flow channel 124, and the steam flowing back into the steam flow channel 124 is discharged outward through the steam outlet 133.

[0151] Steam outlet 133 is located on the side of the drip tray 128, so steam in the steam channel 124 can be directly discharged to the outside through steam outlet 133 on the drip tray 128. Since both steam inlet 121 and steam outlet 133 are located on the drip tray 128, there is no need to provide a steam discharge outlet on the water tank 127, which reduces the processing difficulty of the water tank 127.

[0152] In one possible application, the steam outlet 133 is opened upwards, so that when steam is discharged from the steam outlet 133, the steam is less likely to rush towards the user located on the side of the cooking device, thus avoiding direct contact between the steam and the user and reducing the chance of the user being scalded.

[0153] Combination Figure 2 and Figure 4 As shown, in some embodiments, optionally, the steam generating assembly 120 is located inside the base 110, the base 110 is provided with an outlet 111, and the steam flow channel 124 is connected to the outlet 111.

[0154] The water tank 127 is located inside the base 110, which protects the water tank 127. An air vent 111 is provided on the base 110 so that steam can be discharged to the outside.

[0155] Steam flows through steam channel 124 and is discharged outward through outlet 111. That is, the steam that has been cooled by heat exchange in steam channel 124 can be discharged from the cooking equipment. Since the temperature of the steam discharged from the cooking equipment is low, users around the cooking equipment are less likely to be scalded by the steam, which helps to improve the safety of users during the cooking process.

[0156] Combination Figure 2 and Figure 4 As shown, in some embodiments, the cooking device may optionally include a fan 150 connected to the base 110, which is used to draw steam from the steam channel 124 to the outlet 111.

[0157] When the fan 150 is running, it draws steam from the steam channel 124 to the outlet 111. Driven by the fan 150, the steam is discharged to the outside of the cooking equipment at a high flow rate. Due to the rapid flow and diffusion of the steam, the contact area between the steam and the surrounding air is large, and the water molecules in the steam quickly mix with the air, making it difficult to form visible water droplets or condensation. At the same time, the high-speed flow of the steam also reduces the possibility of water molecules accumulating in one place, thus avoiding the formation of condensation.

[0158] like Figure 2As shown, in some embodiments, optionally, the base 110 is provided with a mounting cavity 112, the fan 150 is located in the mounting cavity 112, and the steam flow channel 124 and the air outlet 111 are connected through the mounting cavity 112.

[0159] An installation cavity 112 is provided on the base 110. The installation cavity 112 is used to install the fan 150. The installation cavity 112 is used to connect the steam outlet 133 and the air outlet 111. By placing the fan 150 in the installation cavity 112, the airflow into the installation cavity 112 mainly comes from the steam outlet 133. The fan 150 is less likely to draw out the air inside the base 110, thereby ensuring that the steam in the steam channel 124 is discharged at a high flow rate, and further preventing the steam discharged from the cooking equipment from forming condensate.

[0160] In some embodiments, the opening area of ​​the air outlet 111 is optionally greater than or equal to 50 mm². 2 .

[0161] To ensure that steam can be quickly expelled from the cooking equipment, the steam outlet 111 needs to have a large opening area. In this design, the opening area of ​​the steam outlet 111 is limited to be greater than or equal to 50 mm². 2 This ensures that steam can be discharged smoothly, which helps the steam form barely visible water droplets or condensate.

[0162] In some embodiments, optionally, the length of the steam channel 124 along the extending direction of the steam channel 124 is greater than or equal to 1000 mm.

[0163] The longer the steam flow channel 124 is, the longer the steam flows within the steam flow channel 124, thereby increasing the heat exchange time between steam and water and improving the heat recovery effect.

[0164] like Figure 3 As shown, in some embodiments, the base assembly 100 may optionally include a filter 160 located within the steam flow channel 124.

[0165] Steam can pass through filter screen 160, but filter screen 160 can reduce the flow speed of steam in steam channel 124, thereby prolonging the flow time of steam in steam channel 124 and thus increasing the heat exchange time between steam and water.

[0166] In some embodiments of the present invention, a cooking device is proposed, including a base assembly 100 as described in any of the above embodiments, and can achieve the same technical effect, which will not be repeated here.

[0167] Combination Figure 1 and Figure 2As shown, in some embodiments, the cooking device may optionally include a steamer assembly 200 disposed on the base assembly 100, the steamer assembly 200 having a cooking cavity 210, a steam supply port 122 and a steam inlet 121 both connected to the cooking cavity 210.

[0168] A steam channel 124 is provided on one side of the drip tray 128. Steam can heat the food in the cooking chamber 210. As the amount of steam in the cooking chamber 210 gradually increases, the steam in the cooking chamber 210 can flow into the steam channel 124 through the steam inlet 121. The steam flowing back into the steam channel 124 is used to exchange heat with the chamber that generates steam, thereby realizing the recovery of steam heat and avoiding the waste of steam heat.

[0169] like Figure 2 As shown, in some embodiments, the cooking device may optionally include a steam return pipe 300, the first end of which is connected to the steam inlet 121, and the second end of which extends toward the top of the cooking chamber 210.

[0170] One end of the steam return pipe 300 is connected to the steam inlet 121, and the other end extends to the top of the cooking chamber 210. After steam flows into the cooking chamber 210 through the steam supply port 122, the steam rises within the cooking chamber 210. Due to the height of the steam return pipe 300, steam only flows into the steam return pipe 300 when it reaches the top of the cooking chamber 210. Therefore, with some steam flowing to the top of the cooking chamber 210, the cooking chamber 210 is essentially filled with steam, resulting in a higher temperature throughout the cooking chamber 210 and ensuring uniform heating of the food.

[0171] By installing a steam return pipe 300 on the steam inlet 121, steam is less likely to flow directly to the steam inlet 121, ensuring that the steam can effectively heat the food.

[0172] like Figure 2 As shown, in some embodiments, optionally, the distance between the second end of the steam return pipe 300 and the cavity sidewall of the cooking cavity 210 is L1, where L1 satisfies L1≤50mm.

[0173] Steam in the cooking cavity 210 flows to the steam channel 124 through the second end of the steam return pipe 300. The closer the second end of the steam return pipe 300 is to the side wall of the cooking cavity 210, the longer it takes for steam in the cooking cavity 210 to flow to the steam return pipe 300.

[0174] Specifically, the distance between the second end of the steam return pipe 300 and the side wall of the cooking cavity 210 is L1, where L1 ≤ 50 mm. Therefore, the distance between the second end of the steam return pipe 300 and the side wall of the cooking cavity 210 is small, and the second end of the steam return pipe 300 is far from the middle and above the drip tray 128. During the process of steam flowing towards the top of the cooking cavity 210, the steam will not directly pass through the second end of the steam return pipe 300. When the steam flows to the top of the cooking cavity 210, it will flow along the top of the cooking cavity 210 towards the side of the cooking cavity 210 for a certain distance before flowing into the steam return pipe 300. In this way, the flow time of the steam in the cooking cavity 210 is increased, which is beneficial to ensure that the cooking cavity 210 has a higher temperature and improve the heating effect on the food.

[0175] like Figure 5 As shown, in some embodiments, optionally, the distance between the orthographic projection of the second end of the steam return pipe 300 on the steam generating assembly 120 and the steam supply port 122 is L2, where L2 satisfies L2≥50mm.

[0176] Steam in the cooking cavity 210 flows to the steam channel 124 through the second end of the steam return pipe 300. The second end of the steam channel 124 has a positive projection on the drip tray 128. The greater the distance between the positive projection and the steam supply port 122, the longer it takes for steam in the cooking cavity 210 to flow to the steam return pipe 300.

[0177] For example, if the steam supply port 122 is located in the middle of the drip tray 128, and the distance between the orthographic projection of the second end of the steam return pipe 300 on the drip tray 128 and the steam supply port 122 is small, it means that the second end of the steam return pipe 300 is close to the upper middle part of the drip tray 128. When the steam flows to the top of the cooking cavity 210, the steam will directly pass through the second end of the steam return pipe 300, resulting in a shorter steam flow time in the cooking cavity 210.

[0178] In this embodiment, the distance between the projection of the second end of the steam return pipe 300 onto the drip tray 128 and the steam supply port 122 is L2, where L2 ≥ 50 mm. Within this range, the second end of the steam return pipe 300 is far from the upper middle part of the drip tray 128. During the process of steam flowing towards the top of the cooking cavity 210, the steam will not directly pass through the second end of the steam return pipe 300. When the steam flows to the top of the cooking cavity 210, it will flow a certain distance along the top of the cooking cavity 210 towards the side of the cooking cavity 210 before flowing into the steam return pipe 300. In this way, the flow time of steam in the cooking cavity 210 is increased, which is beneficial to ensure that the cooking cavity 210 has a higher temperature and improve the heating effect on the food.

[0179] In some embodiments, the steamer assembly 200 may optionally include a steamer 220 and a cover 230, wherein the steamer 220 is disposed on the base assembly 100 and the cover 230 is disposed on the steamer 220 so that a closed space is formed between the cover 230 and the steamer 220.

[0180] The ingredients can be placed inside the steamer 220, and the space inside the lid 230 and the steamer 220 constitutes the cooking cavity 210. When the lid 230 is covering the steamer 220, the lid 230 and the steamer 220 are in a closed state, that is, there is no vent hole on the lid 230 for venting, so that the gas inside the cooking cavity 210 will not be released to the outside through the lid 230, thereby ensuring that the cooking equipment can recover the heat of the steam and reduce the temperature of the released steam.

[0181] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0182] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. 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.

[0183] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A base assembly characterized by, A cooking device has a cooking cavity, and the base assembly comprises: a base; a steam generating assembly connected to the base, the steam generating assembly being provided with a steam inlet, a steam supply port and an inner cavity, the inner cavity being provided with a steam flow channel, and the steam inlet being in communication with the steam flow channel; wherein the steam generated by the steam generating assembly is discharged into the cooking cavity through the steam supply port, and the steam inlet is used for returning steam in the cooking cavity to the steam flow channel.

2. The base assembly of claim 1, wherein, The steam returned to the steam flow channel is discharged to the outside through an end of the steam flow channel.

3. The base assembly of claim 1, wherein, The inner cavity is used for storing water, the steam flow channel is in communication with the inner cavity, and the steam returned to the steam flow channel is used for heat exchange with the water in the inner cavity.

4. The base assembly of claim 1, wherein, The steam supply port and the steam flow channel are independent of each other.

5. The base assembly of any one of claims 1 to 4, wherein, The steam generating assembly is provided with a highest liquid level line, and a part of the steam flow channel is higher than the highest liquid level line with the bottom wall of the inner cavity as a reference.

6. The base assembly of any one of claims 1 to 4, wherein, The steam generating assembly is provided with a lowest liquid level line, and a part of the steam flow channel is lower than the lowest liquid level line with the bottom wall of the inner cavity as a reference.

7. The base assembly of any one of claims 1 to 4, wherein, The steam generating assembly comprises: a flow guide member provided with the steam flow channel, and a part of the flow guide member being submerged in the water in the inner cavity.

8. The base assembly of claim 7, wherein, The flow guide is provided with a flow channel gap, the flow channel gap is communicated with the steam flow channel, steam in the steam flow channel is discharged outward through the flow channel gap, and the opening area of the flow channel gap higher than the highest liquid level line part is S based on the bottom wall in the inner cavity, S satisfies S≥500mm 2 .

9. The base assembly of claim 7, wherein, The length of the flow guide member is greater than the length of the steam flow channel.

10. The base assembly of claim 7, wherein, The steam generating assembly further comprises: a water tank; a juice receiving disc connected to the water tank, the inner cavity being located between the juice receiving disc and the water tank, the flow guide member being located in the inner cavity, the steam inlet and the steam supply port being provided on the juice receiving disc, and the cooking cavity being located above the juice receiving disc.

11. The base assembly of claim 10, wherein, A first side of the juice receiving disc is used for facing the cooking cavity, and the steam inlet protrudes from the first side of the juice receiving disc.

12. The base assembly of claim 10, wherein, The steam generating assembly further comprises: a partition located in the inner cavity, the partition being used for separating the steam supply port and the steam flow channel.

13. The base assembly of claim 12, wherein, The partition is sealingly attached to the juice receiving disc to separate the steam supply port and the steam flow channel.

14. The base assembly of claim 12, wherein, The partition is provided with a steam generating cavity, the steam generating cavity being in communication with the steam supply port, and the inner cavity being in communication with the steam generating cavity.

15. The base assembly of claim 12, wherein, The minimum distance between the flow guide member and the partition is greater than or equal to 5 mm.

16. The base assembly of claim 14, wherein, The steam generating assembly further comprises: an inner cylinder located in the steam generating cavity, a top portion of the inner cylinder being connected to the partition, and a side portion of the inner cylinder being spaced apart from a side portion of the partition.

17. The base assembly of claim 16, wherein, A bottom portion of the inner cylinder is spaced apart from a bottom wall of the steam generating cavity, and the bottom portion of the inner cylinder is provided with a through port, the through port being in communication with the steam generating cavity.

18. The base assembly of claim 10, wherein, A side portion of the juice receiving disc protrudes from the base, a steam outlet is provided on a part of the juice receiving disc protruding from the base, the steam outlet is in communication with the steam flow channel, and the steam returned to the steam flow channel is discharged to the outside through the steam outlet.

19. The base assembly of any one of claims 1-4, wherein, The steam generating assembly is located in the base, the base is provided with an air outlet, and the steam flow channel is in communication with the air outlet.

20. The base assembly of claim 19, wherein, The cooking device further comprises: A fan is connected to the base, and the fan is used to pump the steam in the steam flow channel to the air outlet.

21. The base assembly of claim 20, wherein, The base is provided with a mounting cavity, the fan is located in the mounting cavity, and the steam flow channel and the air outlet are communicated through the mounting cavity.

22. The base assembly of claim 19, wherein, The opening area of the air outlet is greater than or equal to 50 mm 2 .

23. The base assembly of any one of claims 1-4, wherein, The length of the steam flow channel is greater than or equal to 1000 mm along the extension direction of the steam flow channel.

24. The base assembly of any one of claims 1-4, wherein, The base assembly further comprises: A filter screen is located in the steam flow channel.

25. A cooking apparatus, characterized by, It comprises: The base assembly according to any one of claims 1 to 24.

26. The cooking apparatus of claim 25, wherein, The cooking device further comprises: A steamer assembly is arranged on the base assembly, and the steamer assembly has a cooking cavity, and the steam supply port and the steam inlet are communicated with the cooking cavity.

27. The cooking apparatus of claim 26, wherein, The cooking device further comprises: A steam return pipe, a first end of the steam return pipe is connected with the steam inlet, and a second end of the steam return pipe extends to the top of the cooking cavity.

28. The cooking apparatus of claim 27, wherein, The distance between the second end of the steam return pipe and the cavity side wall of the cooking cavity is L1, and L1 satisfies L1≤50 mm.

29. The cooking device of claim 27, wherein, The distance between the second end of the steam return pipe and the steam supply port is L2, and L2 satisfies L2≥50 mm.

30. The cooking apparatus according to any one of claims 26 to 29, wherein, The steamer assembly comprises: A steamer is arranged on the base assembly; A cover is arranged on the steamer to form a closed space in the cover and the steamer.

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