Steam cooking appliance capable of cleaning scale

Abstract

The present application discloses a steam cooking appliance capable of cleaning scale, belonging to the technical field of kitchen appliances. The cooking appliance includes a steam generator and a liquid supply unit for supplying liquid to the steam generator. The liquid supply unit includes a water tank, wherein the water tank is provided with a first liquid storage chamber and a second liquid storage chamber. A drain port is provided at the bottom of the water tank, communicating with the second liquid storage chamber. A connecting port is provided between the first and second liquid storage chambers. The liquid level in the second liquid storage chamber changes so that the liquid in the first liquid storage chamber is discharged into the second liquid storage chamber through the connecting port. This arrangement allows the user to perform a cleaning operation in a cleaning mode when descaling the steam generator and pipelines. That is, when descaling is required, the cleaning mode is activated, and automatic descaling and post-descaling rinsing operations are performed. The user does not need to refill the water tank with water to rinse the steam generator, etc., thus achieving a step-saving cleaning operation and improving the user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and in particular relates to a steam cooking appliance capable of cleaning scale. Background Art

[0002] Existing steam cooking devices typically include a steam generator and a water tank that provides liquid for the steam generator. When the steam cooking device is in use, the steam generator heats water to generate steam, which provides the steam heat source for cooking food. However, when using non-pure water for heating, the steam generator will produce scale, which is particularly serious in areas with hard water. Furthermore, as the scale forms over time, it becomes increasingly difficult to clean, eventually leading to pipe blockage. To slow or even eliminate this scale, a cleaning agent such as citric acid is typically injected into the water tank. The steam generator and other components are then cleaned using the same cleaning procedure as the steam cooking appliance. After cleaning, water is added to the water tank again, and the cleaning procedure is repeated to remove any residual cleaning agent.

[0003] The above method requires injecting cleaning agent into the water tank when running the cleaning program for the first time. After cleaning is completed, clean water needs to be poured into the water tank and the cleaning program needs to be run again to flush out the residue. The operation is relatively complicated and the cleaning time is long. Moreover, the user needs to be on guard at all times to complete the entire cleaning process. It is impossible to achieve one-click automatic descaling, which seriously affects the consumer experience. Summary of the Invention

[0004] The present application provides a steam cooking appliance capable of cleaning scale to solve at least one of the above-mentioned technical problems.

[0005] The technical solutions adopted in this application are:

[0006] A steam cooking appliance capable of cleaning scale comprises a steam generator and a liquid supply unit for supplying liquid to the steam generator, wherein the liquid supply unit comprises a water tank, wherein a first liquid storage chamber and a second liquid storage chamber are provided in the water tank, a drain port communicating with the second liquid storage chamber is provided at the bottom of the water tank, a connecting port is provided between the first liquid storage chamber and the second liquid storage chamber, and the liquid level of the second liquid storage chamber changes so that the liquid in the first liquid storage chamber is discharged into the second liquid storage chamber through the connecting port.

[0007] The steam cooking appliance capable of cleaning scale in this application also has the following additional technical features:

[0008] The cooking appliance further comprises a floating member located in the water tank, and the floating member can float with changes in the liquid level in the second liquid storage cavity to open or close the communication port.

[0009] The water tank includes a main water tank and a subsidiary water tank installed in the main water tank, the first liquid storage chamber is formed in the subsidiary water tank, and the second liquid storage chamber is formed in the main water tank; or,

[0010] A partition is provided in the water tank, and the partition divides the internal space of the water tank into the first liquid storage chamber and the second liquid storage chamber.

[0011] The water tank is provided with a water transfer chamber connected to the second liquid storage chamber, the communication port is connected to the first liquid storage chamber, a floating member is provided in the water transfer chamber that changes with the liquid level of the second liquid storage chamber, and when the floating member opens the communication port, the water transfer chamber is connected to the first liquid storage chamber through the communication port.

[0012] The water tank includes a floating member arranged in the second liquid storage cavity and near the communication port. The liquid in the first liquid storage cavity is intermittently discharged into the second liquid storage cavity through the communication port to drive the floating member to open or close the communication port.

[0013] The cooking appliance further includes a one-way valve having a closed state in which the communication port is closed and an open state in which the communication port is opened.

[0014] In the closed state, the pressure between the first liquid storage chamber and the second liquid storage chamber is balanced; in the open state, the pressure in the second liquid storage chamber is lower than the pressure in the first liquid storage chamber, and the liquid in the first liquid storage chamber flows from the first liquid storage chamber to the second liquid storage chamber under the action of the pressure difference.

[0015] The one-way valve is configured to operate under a pressure difference between the first liquid storage chamber and the second liquid storage chamber to switch from the closed state to the open state.

[0016] A partition and a drainage channel are provided in the water tank. The partition divides the internal space of the water tank into the first liquid storage chamber and the second liquid storage chamber. The drainage channel is located in the first liquid storage chamber. The drainage channel has a water inlet connected to the first liquid storage chamber and a water outlet connected to the second liquid storage chamber. The liquid in the first liquid storage chamber flows into the second liquid storage chamber through the drainage channel under the action of pressure difference.

[0017] The steam cooking appliance includes a body, which is provided with a water tank placement position. The water tank can be placed in the water tank placement position in a removable manner. The drain port is provided with a sealing member for opening or closing the drain port. The water tank placement position is provided with a trigger member. When the water tank is placed in the water tank placement position, the trigger member triggers the sealing member to open the drain port.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. The present application sets a water tank as a first liquid storage chamber and a second liquid storage chamber, a drain port communicating with the second liquid storage chamber is provided at the bottom of the water tank, a communicating port is provided between the first liquid storage chamber and the second liquid storage chamber, and the liquid level of the second liquid storage chamber changes so that the liquid in the first liquid storage chamber is discharged into the second liquid storage chamber through the communicating port, so that when the user needs to descale the steam generator and pipelines, etc., a descaling agent is injected into the second liquid storage chamber. After starting the cleaning mode, the descaling agent in the second liquid storage chamber flows into the steam generator and pipelines and other components through the drain port, thereby descaling the steam generator. The steam generator and pipelines are automatically descaled. As the descaling agent in the second liquid storage chamber is continuously reduced, the liquid level in the second liquid storage chamber is also continuously reduced. The liquid in the first liquid storage chamber enters the second liquid storage chamber through the connecting port and enters the steam generator, pipelines and other components through the drain port, which plays a role in flushing scale residues in the pipelines and steam generators, thereby ensuring the cleanliness of the steam generator and pipelines and extending the service life of the steam generator. At the same time, there is no need for the user to fill the water tank for the second time to flush the pipelines and steam generators, which realizes a step-saving cleaning operation and improves the user experience.

[0020] 2. As a preferred embodiment of the present application, the cooking appliance is configured to include a floating member located in the water tank, and the floating member can float with the change of the liquid level in the second liquid storage chamber to open or close the connecting port, so that the connecting port can be opened or closed under the floating action of the floating member. When the cleaning mode is started, the descaling agent gradually flows into the steam generator, causing the liquid level in the second liquid storage chamber to gradually decrease. At the same time, the floating member also moves downward following the liquid level in the second liquid storage chamber. When the liquid level in the second liquid storage chamber is lower than the connecting port, the connecting port is opened, thereby connecting the first liquid storage chamber with the second liquid storage chamber. The raw water in the first liquid storage chamber enters the second liquid storage chamber and enters the steam generator through the drain port, thereby flushing the scale residue in the pipeline and the steam generator. The structure is simple and no additional driving components are required, thereby reducing production costs.

[0021] 3. As a preferred embodiment of the present application, the water tank is configured to include a main water tank and a subsidiary water tank installed within the main water tank, with the first liquid storage chamber formed within the subsidiary water tank and the second liquid storage chamber formed within the main water tank. This reduces the space occupied by the water tank, making the overall structure of the water tank more compact and facilitating miniaturization of the cooking appliance. Furthermore, the main water tank and the subsidiary water tank provide for partitioning the first and second liquid storage chambers, providing more possibilities for the use of the cooking appliance. For example, preferably, the subsidiary water tank is detachably mounted within the main water tank. In cleaning mode, the subsidiary water tank is installed within the main water tank to partition the first and second liquid storage chambers. In cooking mode, the user can freely remove or install the subsidiary water tank. When the subsidiary water tank is removed for cooking, the water storage capacity of the water tank can be increased, thereby reducing the number of water refills.

[0022] As another preferred embodiment of the present application, a partition is provided in the water tank, and the partition divides the internal space of the water tank into the first liquid storage chamber and the second liquid storage chamber. By providing the partition, the internal partition of the water tank can be realized to separate the second liquid storage chamber from the first liquid storage chamber. The structure is simple and the cost is low. At the same time, it can also play a certain supporting role for the water tank, so that the overall structural strength of the water tank is improved.

[0023] 4. As a preferred embodiment of the present application, a water transfer chamber connected to the second liquid storage chamber is provided within the water tank. A floating member is provided within the water transfer chamber that changes with the liquid level of the second liquid storage chamber. When the floating member opens the communication port, the water transfer chamber communicates with the first liquid storage chamber through the communication port. This simplifies the structure and reduces production costs. Furthermore, the floating member is disposed within the water transfer chamber, enabling the communication port to be opened or closed under the floating action of the floating member. The water transfer chamber limits the movement of the floating member, forcing the floating member to float up and down within the water transfer chamber. This ensures the floating position of the floating member and the stability of the opening and closing of the communication port.

[0024] 5. As a preferred embodiment of the present application, the water tank is configured to include a floating member provided in the second liquid storage chamber and near the connecting port, the liquid in the first liquid storage chamber is intermittently discharged into the second liquid storage chamber through the connecting port to drive the floating member to open or close the connecting port. When the cleaning mode is started, the descaling agent gradually flows into the steam generator, causing the liquid level in the second liquid storage chamber to gradually decrease. At the same time, the floating member also moves downward following the liquid level in the second liquid storage chamber. When the liquid level in the second liquid storage chamber is lower than the connecting port, the connecting port is opened, thereby connecting the first liquid storage chamber with the second liquid storage chamber. The raw water is intermittently discharged into the second liquid storage chamber to realize intermittent water supply, and enters the steam generator through the drain port, thereby flushing the pipes and scale residues in the steam generator. The structure is simpler and no additional driving components are required, further reducing the production cost.

[0025] 6. As a preferred embodiment of the present application, a one-way valve is provided within the cooking appliance, wherein the one-way valve has a closed state (sealing the communication port) and an open state (opening the communication port). When a user needs to clean and descale the cooking appliance, a descaling agent is injected into the second liquid storage chamber and a liquid is injected into the first liquid storage chamber. Since the one-way valve is provided at the communication port connecting the first and second liquid storage chambers, when the one-way valve is closed, the liquid in the first liquid storage chamber cannot enter the second liquid storage chamber, thereby ensuring an appropriate concentration of the descaling agent in the second liquid storage chamber. This prevents the liquid in the first liquid storage chamber from entering the descaling agent before descaling the steam generator and pipelines, causing severe dilution and preventing the descaling agent from descaling, thereby ensuring smooth descaling. Furthermore, when the one-way valve is open, the liquid in the first liquid storage chamber can only enter the second liquid storage chamber, while the descaling agent cannot enter the first liquid storage chamber, thereby ensuring the cleanliness of the liquid in the first liquid storage chamber and ensuring a smooth post-descaling rinse. After the user starts the cleaning mode, the descaling agent enters the steam generator through the drain port to descale the steam generator and pipelines, and when the one-way valve is in the open state, the first liquid storage chamber is connected with the second liquid storage chamber, and the liquid in the first liquid storage chamber enters the second liquid storage chamber through the connecting port and is discharged into the steam generator through the drain port, thereby flushing scale residues in the pipelines and steam generator.

[0026] 7. As a preferred embodiment of the present application, in the closed state, the pressure between the first liquid storage chamber and the second liquid storage chamber is balanced, so that the liquids in the first liquid storage chamber and the second liquid storage chamber will not mix with each other, ensuring the cleanliness of the liquid in the first liquid storage chamber, thereby ensuring the smooth progress of subsequent descaling. At the same time, in the open state, the pressure in the second liquid storage chamber is lower than the pressure in the first liquid storage chamber, and the liquid in the first liquid storage chamber flows from the first liquid storage chamber to the second liquid storage chamber under the action of the pressure difference. The pressure difference between the first liquid storage chamber and the second liquid storage chamber can realize the flow of the first liquid storage chamber into the second liquid storage chamber, and discharge it into the steam generator and pipelines and other components through the drain port, playing the role of flushing scale residues in the pipelines and steam generators, avoiding the need to set other driving components to realize the drainage of the liquid in the first liquid storage chamber to the second liquid storage chamber, simplifying the structure of the whole machine, and reducing production costs.

[0027] 8. As a preferred embodiment of the present application, by constructing the one-way valve to operate under the pressure difference between the second liquid storage chamber and the first liquid storage chamber to switch from the closed state to the open state, when the cooking appliance is performing a cleaning procedure, the one-way valve can operate under the pressure difference to allow the liquid in the first liquid storage chamber to flow into the second liquid storage chamber through the one-way valve, thereby achieving sufficient dilution of the descaling agent and flushing scale residues in the pipeline and the steam generator, avoiding the need to set other driving components to achieve the opening and closing of the connecting port, simplifying the structure of the entire machine, and reducing production costs.

[0028] 9. As a preferred embodiment of the present application, the internal space of the water tank is divided into the first liquid storage chamber and the second liquid storage chamber by using a partition. The structure is simple and easy to assemble, which reduces the production cost of the water tank. At the same time, the partition can also play a certain supporting role for the water tank, thereby improving the overall structural strength of the water tank. Moreover, the drainage channel is located in the first liquid storage chamber, and the drainage channel has a water inlet connected to the first liquid storage chamber, and a water outlet connected to the second liquid storage chamber. The liquid in the first liquid storage chamber flows into the second liquid storage chamber through the drainage channel under the action of the pressure difference, so that when the user needs to descale the cooking utensils, the user injects liquid into the first liquid storage chamber and injects a descaling agent into the second liquid storage chamber. After starting the cleaning mode, the descaling agent located in the second liquid storage chamber flows into the steam generator through the drain port, and automatically descaling the steam generator and pipelines, etc., and then the liquid in the first liquid storage chamber flows into the second liquid storage chamber through the drainage channel under the action of the pressure difference and enters the steam generator from the drain port, realizing the flushing operation of the steam generator and pipelines after descaling. The user does not need to fill water into the water tank a second time to flush the pipelines and steam generator, realizing a step-saving cleaning operation and improving the user experience.

[0029] 10. As a preferred embodiment of the present application, the steam cooking appliance further comprises a body. A water tank placement position is provided on the body, and the water tank is removably placed in the water tank placement position, making the water tank removable relative to the body. This allows the user to remove the water tank and perform the corresponding operations when cleaning or adding water to the water tank, thereby facilitating cleaning and adding water to the water tank. Furthermore, the drain port is provided with a sealing member for opening or closing the drain port. The water tank placement position is provided with a trigger member. When the water tank is placed in the water tank placement position, the trigger member triggers the sealing member to open the drain port. When the water tank is not placed in the water tank placement position, the drain port is sealed by the sealing member, preventing liquid in the water tank from leaking to the outside. Furthermore, when the water tank is placed in the water tank placement position, the trigger member triggers the sealing member to open the drain port, thereby opening the drain port. This makes operation more convenient and quick, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 This is a schematic structural diagram of a steam cooking appliance according to one embodiment of the present application;

[0032] Figure 2 This is a connection diagram of the lower water tank and the steam generator in one embodiment of the present application;

[0033] Figure 3 This is a cross-sectional view of a lower water tank according to one embodiment of the present application;

[0034] Figure 4 This is a cross-sectional view of a lower water tank according to another embodiment of the present application;

[0035] Figure 5 This is a cross-sectional view of a lower water tank according to another embodiment of the present application;

[0036] Figure 6 This is an exploded view of a lower water tank according to another embodiment of the present application;

[0037] Figure 7 A cross-sectional view of a lower water tank according to another embodiment of the present application;

[0038] Figure 8 This is an exploded view of a water tank in another embodiment of the present application;

[0039] Figure 9 This is a cross-sectional view of a lower water tank according to another embodiment of the present application;

[0040] Figure 10This is a cross-sectional view of a lower water tank according to another embodiment of the present application;

[0041] Figure 11 This is a structural schematic diagram of a lower water tank in another embodiment of the present application.

[0042] in,

[0043] 1-water tank, 11-main water tank, 111-second liquid storage chamber, 112-convex rib, 12-auxiliary water tank, 121-first liquid storage chamber, 13-drainage port, 14-partition, 15-connecting port, 16-installation port, 17-tank cover, 18-descaler delivery port, 19-raw water inlet; 2-machine body, 21-water tank placement position; 3-steam generator; 4-floating part; 5-limiting part, 51-water flow chamber; 6-installation cover; 7-blocking part; 8-one-way valve, 81-sealing part, 811-water flow gap; 9-drainage channel, 91-water inlet, 92-water outlet; 10-cleaning box, 101-fluid outlet, 102-blocking part. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0046] like Figures 1 to 10 As shown, a steam cooking appliance capable of cleaning scale includes a steam generator 3 and a liquid supply unit for supplying liquid to the steam generator 3, wherein the liquid supply unit includes a water tank 1, wherein a first liquid storage chamber 121 and a second liquid storage chamber 111 are provided in the water tank 1, a drain port 13 communicating with the second liquid storage chamber 111 is provided at the bottom of the water tank 1, a communication port 15 is provided between the first liquid storage chamber 121 and the second liquid storage chamber 111, and the liquid level of the second liquid storage chamber 111 changes so that the liquid in the first liquid storage chamber 121 is discharged into the second liquid storage chamber 111 through the communication port 15.

[0047] In the present application, the liquid injected into the first liquid storage chamber can be raw water, purified water or distilled water. The raw water refers to non-purified water, i.e., municipal tap water. Of course, the first liquid storage chamber 121 can also be injected with pure water, distilled water, etc., which will not be repeated here. At the same time, the second liquid storage chamber 111 is injected with a descaling agent in the cleaning mode of the cooking utensil. In the cooking mode of the cooking utensil, the second liquid storage chamber 111 can be injected with raw water, purified water or distilled water, etc. As a preferred embodiment of the present application, the descaling agent is citric acid particles, and the citric acid is usually food-grade citric acid. The descaling agent thus configured is both safe and hygienic and will not cause damage to the steam generator 3 and the pipeline. Of course, the descaling agent described in the present application is not limited to solid citric acid particles, but can also be a high-concentration citric acid reagent configured with water and citric acid. Of course, other descaling agents in the prior art (such as baking soda, acetic acid, etc.) can also be used.

[0048] The present application sets the water tank 1 as a first liquid storage chamber 121 and a second liquid storage chamber 111, and the bottom of the water tank 1 is provided with a drain port 13 connected to the second liquid storage chamber 111, and a communication port 15 is provided between the first liquid storage chamber 121 and the second liquid storage chamber 111, and the liquid level of the second liquid storage chamber 111 changes so that the liquid in the first liquid storage chamber 121 is discharged into the second liquid storage chamber 111 through the communication port 15, so that when the user needs to descale the steam generator 3 and the pipeline, etc., the descaling agent is injected into the second liquid storage chamber 111, and after the cleaning mode is started, the descaling agent in the second liquid storage chamber 111 flows into the steam generator 3 and the pipeline through the drain port 13 In the components such as the steam generator 3 and the pipeline, the steam generator 3 and the pipeline are automatically descaled. As the descaling agent in the second liquid storage chamber continues to decrease, the liquid level in the second liquid storage chamber 111 also continues to decrease. The raw water in the first liquid storage chamber 121 enters the second liquid storage chamber 111 through the connecting port 15 and enters the steam generator 3 and the pipeline and other components through the drain port 13, which plays a role in flushing the scale residue in the pipeline and the steam generator 3, thereby ensuring the cleanliness of the steam generator 3 and the pipeline and extending the service life of the steam generator 3. At the same time, there is no need for the user to fill water into the water tank 1 for the second time to flush the pipeline and the steam generator 3, thereby realizing a step-saving cleaning operation and improving the user experience.

[0049] As a preferred embodiment of the present application, Figure 3 、 Figure 4 、 Figure 5 As shown, the cooking appliance further comprises a floating member 4 located in the water tank 1 , and the floating member 4 can float with the change of the liquid level in the second liquid storage chamber 111 to open or close the communication port 15 .

[0050] By configuring the cooking appliance to include a floating member 4 located in the water tank 1, and the floating member 4 can float with the change of the liquid level in the second liquid storage chamber 111 to open or close the connecting port 15, the connecting port 15 can be opened or closed under the action of the floating member 4 floating up and down. When the cleaning mode is started, the descaling agent gradually flows into the steam generator 3, causing the liquid level in the second liquid storage chamber 111 to gradually decrease. At the same time, the floating member 4 also moves downward following the decrease in the liquid level in the second liquid storage chamber 111. When the liquid level in the second liquid storage chamber 111 is lower than the connecting port 15, the connecting port 15 is opened, thereby connecting the first liquid storage chamber 121 with the second liquid storage chamber 111. The liquid in the first liquid storage chamber 121 enters the second liquid storage chamber 111 and enters the steam generator 3 through the drain port 13, thereby flushing scale residues in the pipeline and the steam generator 3. The structure is simple and does not require additional driving components, thereby reducing production costs.

[0051] It should be noted that the present application does not specifically limit the configuration of the lower floating member 4 in this embodiment, and it can be any one of the following embodiments:

[0052] Example 1: Figure 3 As shown, in this embodiment, the water tank 1 includes a main water tank 11 and a subsidiary water tank 12 installed in the main water tank 11, the first liquid storage chamber 121 is formed in the subsidiary water tank 12, and the second liquid storage chamber 111 is formed in the main water tank 11.

[0053] By configuring the water tank 1 to include a main water tank 11 and a subsidiary water tank 12 installed in the main water tank 11, and the first liquid storage cavity 121 is formed in the subsidiary water tank 12, and the second liquid storage cavity 111 is formed in the main water tank 11, the space occupied by the water tank 1 is reduced, which helps to make the overall structure of the water tank 1 more compact, providing conditions for the miniaturization of cooking appliances.

[0054] Furthermore, the auxiliary water tank 12 is detachably installed in the main water tank 11. By setting the auxiliary water tank 12 to be detachably installed in the main water tank 11: on the one hand, the auxiliary water tank 12 can be removed to clean the main water tank 11, avoiding the cleaning dead corners generated after the auxiliary water tank 12 is connected to the main water tank 11, making cleaning more thorough and convenient, and reducing the residue of the descaling agent; on the other hand, when the cooking appliance is in normal use, the auxiliary water tank 12 can be placed in or not in the main water tank 11 according to the user's operating habits. Of course, when the auxiliary water tank 12 is not placed in the main water tank 11, the effective liquid injection amount can be expanded to a certain extent, providing more liquid supply for the steam generator 3, and when the liquid level in the first liquid storage chamber 121 is lower than the preset liquid level, the liquid supply can be provided faster, thereby improving the user experience.

[0055] As a preferred implementation method under this embodiment, Figure 2 As shown, the water tank 1 is provided with a water transfer chamber 51 connected to the second liquid storage chamber 111, the communication port 15 is connected to the first liquid storage chamber 121, and a floating member 4 is provided in the water transfer chamber 51 which changes with the liquid level of the second liquid storage chamber 111, and when the floating member 4 opens the communication port 15, the water transfer chamber 51 is connected to the first liquid storage chamber 121 through the communication port 15.

[0056] By disposing a water transfer chamber 51 in communication with the second liquid storage chamber 111 within the water tank 1, and providing a floating member 4 within the water transfer chamber 51 that changes with the liquid level of the second liquid storage chamber 111, and when the floating member 4 opens the communication port 15, the water transfer chamber 51 communicates with the first liquid storage chamber 121 through the communication port 15, the structure is simple and production costs are reduced. Furthermore, the floating member 4 is disposed within the water transfer chamber 51, enabling the communication port 15 to be opened or closed under the floating action of the floating member 4. The water transfer chamber 51 limits the movement of the floating member 4, forcing the floating member 4 to float up and down within the water transfer chamber 51. This ensures the floating position of the floating member 4 and the stability of the opening and closing of the communication port 15.

[0057] It should be noted that the present application does not specifically limit the formation method of the lower water passage cavity 51 of this embodiment, and it can be any one of the following embodiments:

[0058] Embodiment 1: In this embodiment, the water tank 1 also includes a float seat fixed in the main water tank 11, and the float seat defines a water cavity 51 to limit the movement of the floating member 4. Furthermore, a one-way valve is provided at the connecting port 15. When the user disassembles the auxiliary water tank 12 and injects liquid (raw water, purified water or distilled water) into it, due to the presence of the one-way valve, the liquid injected into the auxiliary water tank 12 will not overflow to the outside through the connecting port 15, thereby ensuring that the liquid in the auxiliary water tank will not overflow through the connecting port 15 during the movement of the auxiliary water tank 12. The float seat is provided with a triggering member that triggers the one-way valve to open or close the communication port 15. When the auxiliary water tank 12 is loaded into the main water tank 11, the triggering member triggers the one-way valve to move to release the one-way valve from closing the communication port 15. At this time, the connection and disconnection between the communication port 15 and the water transfer chamber 51 is subject to the floating member 4, and when the floating member 4 opens the communication port 15, the water transfer chamber 51 is connected with the first liquid storage chamber 121 through the communication port 15.

[0059] Implementation method 2: Figure 3As shown, in this embodiment, the water tank 1 also includes a limiting member 5, which cooperates with the auxiliary water tank 12 to form the water flow chamber 51 that is adapted to the floating member 4 and can be connected with the connecting port 15, and the limiting member 5 is provided with a water flow hole connecting the water flow chamber 51 and the first liquid storage chamber 121, and the floating member 4 floats up and down in the water flow chamber 51 to realize the opening or closing of the connecting port 15.

[0060] By arranging a limit member 5 in the water tank 1, and the limit member 5 cooperating with the auxiliary water tank 12 to form a water flow chamber 51 adapted to the floating member 4 and capable of communicating with the connecting port 15, the movement of the floating member 4 is limited, so that the floating member 4 can only float up and down in the water flow chamber 51, ensuring the floating position of the floating member 4, avoiding the situation where the floating member 4 switches its position arbitrarily under the action of hydraulic force, resulting in unstable opening and closing of the connecting port 15, ensuring the smooth and stable opening or closing of the connecting port 15, and thus ensuring stability during cleaning.

[0061] Example 2: Figure 4 、 Figure 5 As shown, in this embodiment, a partition 14 is provided in the water tank 1 , and the partition 14 divides the internal space of the water tank 1 into the first liquid storage chamber 121 and the second liquid storage chamber 111 .

[0062] By setting up the partition 14, the internal partition of the water tank 1 can be achieved to separate the second liquid storage chamber 111 from the first liquid storage chamber 121. The structure is simple and the cost is low. At the same time, it can also play a certain supporting role for the water tank 1, thereby improving the overall structural strength of the water tank 1.

[0063] It should be noted that the present application does not specifically limit the movement mode of the floating member 4 in this embodiment, and it can be any one of the following embodiments:

[0064] Implementation method 1: Figure 4 As shown, the water tank 1 includes a floating member 4 arranged in the second liquid storage chamber 111 and near the connecting port 15. The liquid in the first liquid storage chamber 121 is intermittently discharged into the second liquid storage chamber 111 through the connecting port 15 to drive the floating member 4 to open or close the connecting port 15.

[0065] By configuring the water tank 1 to include a floating member 4 provided in the second liquid storage chamber 111 and near the communicating port 15, the liquid in the first liquid storage chamber 121 is intermittently discharged into the second liquid storage chamber 111 through the communicating port 15, thereby driving the floating member 4 to open or close the communicating port 15. When the cleaning mode is started, the descaling agent gradually flows into the steam generator 3, causing the liquid level in the second liquid storage chamber 111 to gradually decrease. At the same time, the floating member 4 also moves downward following the descaling agent. When the liquid level in the second liquid storage chamber 111 is lower than the communicating port 15, the communicating port 15 is opened, thereby connecting the first liquid storage chamber 121 with the second liquid storage chamber 111. The raw water is intermittently discharged into the second liquid storage chamber 111 to realize intermittent water supply, and enters the steam generator 3 through the drain port 13, thereby flushing the scale residue in the pipeline and the steam generator 3. The structure is simpler and no additional driving components are required, further reducing the production cost.

[0066] Implementation method 2: Figure 5 As shown, in this embodiment, the water tank 1 cooperates with the partition 14 to form a limiting cavity adapted to the floating member 4 , and the limiting cavity is communicated with the second liquid storage cavity 111 .

[0067] By configuring the water tank to cooperate with the partition 14 to form a limiting cavity adapted for the floating member 4, and by communicating with the second liquid storage chamber 111, the movement of the floating member 4 is limited, so that the floating member 4 can only float up and down within the limiting cavity. This ensures the floating position of the floating member 4 and prevents the floating member 4 from randomly switching positions under the action of hydraulic force, resulting in unstable opening and closing of the communication port 15. This ensures smooth and stable opening and closing of the communication port 15, thereby ensuring stability during cleaning. Furthermore, the limiting cavity is formed by the water tank and the partition 14, eliminating the need for a separate limiting member 5 to limit the floating member 4, resulting in a simpler structure and reduced costs.

[0068] Further, if Figure 5 、 Figure 6 As shown, the water tank 1 is provided with a mounting port 16 connected to the limiting cavity, and the floating member 4 can be taken out and placed from the mounting port 16. The water tank 1 also includes a mounting cover 6 that can be detachably mounted on the water tank 1 to open or close the mounting port 16, and the mounting cover 6 is sealed with the mounting port 16.

[0069] By providing the water tank 1 with a mounting opening 16 that communicates with the limiting cavity, and allowing the floating member 4 to be removed and placed through the mounting opening 16, and the water tank 1 also including a mounting cover 6 that is detachably mounted to the water tank 1 to open or close the mounting opening 16, the mounting cover 6 can be removed after use of the cooking utensil, thereby allowing the floating member 4 to be removed for cleaning or replacement. This facilitates cleaning and replacement of the floating member 4 and prevents the floating member 4 from accumulating impurities after long-term use, resulting in uneven floating and water pollution. Furthermore, after the mounting cover 6 is removed, the water tank 1 cannot be used any further, reducing the risk of users forgetting or losing accessories. Furthermore, the mounting cover 6 is in sealed engagement with the mounting opening 16, preventing liquid in the first liquid storage chamber 121 from overflowing from the gap between the mounting opening 16 and the mounting cover 6.

[0070] Of course, the movement of the floating member 4 in the present application is not limited to the up and down movement by means of liquid buoyancy in the above-mentioned embodiment. A driving device may also be provided in the water tank 1, and the driving device may control the up and down movement of the floating member 4. When the liquid level in the second liquid storage chamber 111 decreases, the driving device drives the floating member 4 to open the connecting port 15. When the liquid level in the second liquid storage chamber 111 increases, the driving device drives the floating member 4 to close the connecting port 15. The movement of the floating member 4 is more stable, and the smoothness of opening and closing the connecting port 15 is improved. For example, an electromagnet is provided in the body 2, and the floating member 4 is provided with a metal part or a magnetic part that can achieve magnetic attraction and cooperation with the electromagnet. The movement of the floating member 4 is achieved by turning the electromagnet on and off. Of course, other power drive methods can also be used.

[0071] As another preferred embodiment of the present application, Figure 7 、 Figure 8 、 Figure 9 As shown, the cooking appliance further includes a one-way valve 8 , which has a closed state for closing the communication port 15 and an open state for opening the communication port 15 .

[0072] By arranging a one-way valve 8 in the cooking utensil, and the one-way valve 8 has a closed state for closing the communication port 15 and an open state for opening the communication port 15, when the user needs to clean and descale the cooking utensil, a descaling agent is injected into the second liquid storage chamber 111 and a liquid is injected into the first liquid storage chamber 121. Since a one-way valve 8 is provided at the communication port 15 connecting the first liquid storage chamber 121 and the second liquid storage chamber 111, when the one-way valve 8 is in a closed state, the liquid in the first liquid storage chamber 121 cannot enter the second liquid storage chamber 111, thereby ensuring that the concentration of the descaling agent in the second liquid storage chamber 111 is appropriate, avoiding the situation where the liquid in the first liquid storage chamber 121 enters the descaling agent before the steam generator 3 and the pipeline are descaled, resulting in serious dilution of the descaling agent and the inability of the descaling agent to descale, thereby ensuring smooth descaling. At the same time, when the one-way valve 8 is in the open state, the liquid in the first liquid storage chamber 121 can only enter the second liquid storage chamber 111, and the descaling agent cannot enter the first liquid storage chamber 121, thereby ensuring the cleanliness of the liquid in the first liquid storage chamber 121 and ensuring the smooth flushing after descaling. After the user starts the cleaning mode, the descaling agent enters the steam generator 3 through the drain port 13 to descal the steam generator 3 and the pipelines, etc., and when the one-way valve 8 is in the open state, the first liquid storage chamber 121 is connected to the second liquid storage chamber 111, and the liquid in the first liquid storage chamber 121 enters the second liquid storage chamber 111 through the connecting port 15 and is discharged into the steam generator 3 through the drain port 13, thereby flushing the pipelines and scale residues in the steam generator 3.

[0073] The present application does not specifically limit the relative relationship between the one-way valve 8 and the communication port 15. As a preferred embodiment of the present application, Figure 8 As shown, the one-way valve 8 is detachably installed at the communication port 15 , and the water tank 1 is constructed so that the descaling agent can be injected into the second liquid storage chamber 111 through the communication port 15 when the one-way valve 8 is removed.

[0074] By setting the one-way valve 8 to be detachably mounted at the connecting port 15, the user can remove the one-way valve 8 for comprehensive cleaning when the one-way valve 8 needs to be cleaned or replaced, making cleaning more convenient and quick, ensuring the cleanliness of the one-way valve 8, and avoiding the accumulation of a large amount of impurities in the one-way valve 8 after long-term use, resulting in the liquid in the first liquid storage chamber 121 of the one-way valve 8 not flowing smoothly and water pollution. At the same time, when the one-way valve 8 is removed, a descaling agent can be injected into the second liquid storage chamber 111 through the connecting port 15, so that the connecting port 15 has the functions of connecting the second liquid storage chamber 111 and the first liquid storage chamber 121, as well as injecting a descaling agent. It has multiple uses, eliminating the step of opening another opening on the second liquid storage chamber 111, simplifying the production steps, improving production efficiency, and reducing production costs.

[0075] As a preferred embodiment of this embodiment, in the closed state, the pressure between the first liquid storage chamber 121 and the second liquid storage chamber 111 is balanced; in the open state, the pressure in the second liquid storage chamber 111 is lower than the pressure in the first liquid storage chamber 121, and the liquid in the first liquid storage chamber 121 flows from the first liquid storage chamber 121 to the second liquid storage chamber 111 under the action of the pressure difference.

[0076] In the closed state, the pressure between the first liquid storage chamber 121 and the second liquid storage chamber 111 is balanced, so that the liquids in the first liquid storage chamber 121 and the second liquid storage chamber 111 do not mix with each other, ensuring the cleanliness of the liquid in the first liquid storage chamber 121, thereby ensuring the smooth progress of subsequent descaling. At the same time, in the open state, the pressure in the second liquid storage chamber 111 is lower than the pressure in the first liquid storage chamber 121, and the liquid in the first liquid storage chamber 121 flows from the first liquid storage chamber 121 to the second liquid storage chamber 111 under the action of the pressure difference. The pressure difference between the first liquid storage chamber 121 and the second liquid storage chamber 111 can realize the flow of the first liquid storage chamber 121 into the second liquid storage chamber 111, and discharge it into the steam generator 3 and other components such as the pipeline through the drain port 13, playing the role of flushing scale residues in the pipeline and the steam generator 3, avoiding the need to set other driving components to realize the drainage of the liquid in the first liquid storage chamber 121 into the second liquid storage chamber 111, simplifying the structure of the whole machine and reducing production costs.

[0077] As a preferred implementation manner under this embodiment, the one-way valve 8 is constructed to be actuated under the pressure difference between the first liquid storage chamber 121 and the second liquid storage chamber 111 to switch from the closed state to the open state.

[0078] By constructing the one-way valve 8 to operate under the pressure difference between the second liquid storage chamber 111 and the first liquid storage chamber 121 to switch from the closed state to the open state, when the cooking appliance is performing a cleaning procedure, the one-way valve 8 can operate under the pressure difference to allow the liquid in the first liquid storage chamber 121 to flow into the second liquid storage chamber 111 through the one-way valve 8, thereby achieving sufficient dilution of the descaling agent and flushing scale residues in the pipeline and the steam generator 3, avoiding the need to set other driving components to achieve the opening and closing of the connecting port 15, simplifying the structure of the entire machine, and reducing production costs.

[0079] It should be noted that the present application does not specifically limit how the one-way valve 8 operates under the pressure difference in this embodiment, and it can be any one of the following embodiments:

[0080] Embodiment 1: In this embodiment, the one-way valve 8 includes a sealing portion 81 that seals with the connecting port 15, and the sealing portion 81 is hinged at the connecting port 15, and the sealing portion 81 has a sealing lip that seals with the inner wall of the connecting port 15. When in a closed state, the sealing portion 81 is sealed with the connecting port 15 through the sealing lip. After a pressure difference is generated between the second liquid storage chamber 111 and the first liquid storage chamber 121, the raw water will be pressed toward the sealing portion 81 under the action of the pressure difference, and the sealing portion 81 flips over to open the connecting port 15.

[0081] Implementation method 2: Figure 7 、 Figure 8 As shown, in this embodiment, the one-way valve 8 includes a sealing portion 81 made of an elastic material, and the sealing portion 81 is provided with a water gap 811. The water gap 811 is switched from the closed state to the open state under the pressure difference between the second liquid storage chamber 111 and the first liquid storage chamber 121, and is switched from the open state to the closed state under the elastic action of the sealing portion 81 itself. Specifically, the sealing portion 81 has a V-shaped structure, and the water gap 811 is opened at the bottom end of the V-shaped sealing portion 81 (the side facing the second liquid storage chamber 111), and the upper part (the side facing the first liquid storage chamber 121) is open. Such a structural design enables the parts of the bottom end of the sealing portion 81 to move closer to each other under the action of its own elasticity and the air pressure in the second liquid storage chamber 111, thereby closing the water gap 811. When a pressure difference occurs between the first liquid storage chamber 121 and the second liquid storage chamber 111, the water gap 811 can be opened under the action of the pressure of the first liquid storage chamber 121.

[0082] By configuring the one-way valve 8 to include a sealing portion 81 made of an elastic material, and the sealing portion 81 being provided with a water flow gap 811, the water flow gap 811 is switched from the closed state to the open state under the pressure difference between the second liquid storage chamber 111 and the first liquid storage chamber 121, and is switched from the open state to the closed state under the elastic action of the sealing portion 81 itself, that is, when there is no pressure difference, the water flow gap 811 is in a closed state. Since it is made of an elastic material, the sealing effect is better, preventing raw water from entering the second liquid storage chamber 111 through the one-way valve 8. At the same time, the sealing portion 81 can be switched from the open state to the closed state under the elastic action of its own, which has a simple structure and reduces production costs.

[0083] The cooking appliance also includes a body 2. In addition to the above-mentioned configuration, the one-way valve 8 in the present application can also be provided with an electromagnet on the body 2. The one-way valve 8 includes a valve body and a valve core arranged on the valve body, and the valve core can cooperate with the magnetic force of the electromagnet.

[0084] By disposing an electromagnet within the housing 2, and the one-way valve 8 comprising a valve body and a valve core disposed therein, the valve core can cooperate with the magnetic force of the electromagnet, allowing the user to change the suction force on the valve core by energizing or de-energizing the electromagnet, thereby opening and closing the one-way valve 8, improving the operational stability of the one-way valve 8, and ensuring a smooth cleaning process. Furthermore, the magnetic force driving the valve core to move, as a non-contact transmission method, simplifies the structural design of the water tank and the corresponding power transmission. The valve core can be driven through non-contact transmission, laying the foundation for the detachable water tank.

[0085] It should be noted that the present application does not specifically limit the formation method of the second liquid storage chamber 111 in this embodiment, and it can be any one of the following embodiments:

[0086] Implementation method 1: Figure 7 、 Figure 8 As shown, in this embodiment, the water tank 1 is provided with a rib 112 which is integrally connected to the water tank 1 and cooperates with the bottom wall and / or side wall of the water tank 1 to enclose the second liquid storage cavity 111. Figure 7 As shown, the rib 112 is preferably matched with the bottom wall of the water tank 1.

[0087] By providing a rib 112 in the water tank 1 which is integrally connected to the water tank 1 and cooperates with the bottom wall of the water tank 1 to enclose the second liquid storage chamber 111, the components for providing a second liquid storage chamber 111 are eliminated, the structure is simpler and easier to assemble. At the same time, the rib 112 is integrally connected to the water tank 1, which improves the sealing between the water tank 1 and the rib 112, and prevents raw water from entering the second liquid storage chamber 111 through the gap between the water tank 1 and the rib 112.

[0088] Implementation method 2: Figure 9 As shown, in this embodiment, the cooking appliance further comprises a cleaning box 10 having the second liquid storage cavity 111 , the cleaning box 10 is removably placed in the water tank 1 , and the cleaning box 10 has a fluid outlet 101 capable of communicating with the liquid drain port.

[0089] By configuring the cooking device to further include a cleaning box 10 having the second liquid storage chamber 111, and by removably placing the cleaning box 10 within the water tank 1, the user can remove the cleaning box 10 and inject the cleaning liquid into the second liquid storage chamber 111 when they need to add cleaning liquid. This makes the operation more convenient and quick, improving the user experience. The cleaning box 10 can also be removed for comprehensive cleaning to ensure the cleanliness of the second liquid storage chamber 111. Furthermore, when the cooking device is performing a normal cooking process, the cleaning box 10 can be removed and liquid can be injected into the water tank 1, which can increase the effective raw water injection volume to a certain extent, providing more raw water supply for the steam generator 3.

[0090] Further, if Figure 9 As shown, the cleaning box 10 is provided with a blocking member 102 for opening or closing the fluid outlet 101, and a mounting position for installing the cleaning box 10 is provided in the water tank, and a top opening member for triggering the blocking member 102 to open the fluid outlet 101 is provided at the mounting position. When the cleaning box 10 is placed in the mounting position, the cleaning box 10 is sealed with the water tank to form a water passage cavity, and the drain port 13 is connected to the water passage cavity.

[0091] By providing the blocking member 102 for opening or closing the fluid outlet 101 in the cleaning box 10, when the user injects liquid into the second liquid storage chamber 111, the liquid will not flow out of the fluid outlet 101, thereby ensuring the stability of the liquid in the second liquid storage chamber 111. At the same time, a mounting position for installing the cleaning box 10 is provided in the water tank, and a push-up member for triggering the blocking member 102 to open the fluid outlet 101 is provided at the mounting position. When the cleaning box 10 is placed in the mounting position, the cleaning box 10 and the water tank are sealed to form a water flow cavity, and the liquid discharge port 13 is connected to the water flow cavity. After the cleaning box 10 is placed in place, the push-up member pushes the blocking member 102 to open the fluid outlet 101, allowing the liquid to be discharged through the water flow cavity and the liquid discharge port 13. The operation is more convenient and quick, thereby improving the user experience.

[0092] As another preferred embodiment of the present application, Figure 10 As shown, a partition 14 and a drainage channel 9 are provided in the water tank 1. The partition 14 divides the internal space of the water tank 1 into the first liquid storage chamber 121 and the second liquid storage chamber 111. The drainage channel 9 is located in the first liquid storage chamber 121. The drainage channel 9 has a water inlet 91 connected to the first liquid storage chamber 121 and a water outlet 92 connected to the second liquid storage chamber 111. The liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9 under the action of pressure difference.

[0093] By using the partition 14 to separate the internal space of the water tank 1 into the first liquid storage chamber 121 and the second liquid storage chamber 111, the structure is simple and easy to assemble, which reduces the production cost of the water tank 1. At the same time, the partition 14 can also play a certain supporting role for the water tank 1, so that the overall structural strength of the water tank 1 is improved. In addition, the drainage channel 9 is located in the first liquid storage chamber 121. The drainage channel 9 has a water inlet 91 connected to the first liquid storage chamber 121 and a water outlet 92 connected to the second liquid storage chamber 111. The liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9 under the action of the pressure difference. When the user needs to descale the cooking utensils, he injects liquid into the first liquid storage chamber 121 and injects a descaling agent into the second liquid storage chamber 111. After starting the cleaning mode, the liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9. The descaling agent in the second liquid storage chamber 111 flows into the steam generator 3 through the drain port 13, automatically descaling the steam generator 3 and the pipeline, and then the liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9 under the action of the pressure difference and enters the steam generator 3 from the drain port 13, thereby realizing the flushing operation after descaling the steam generator 3 and the pipeline, etc., and the user does not need to fill water into the water tank 1 a second time to flush the pipeline and the steam generator 3, thereby realizing a step-saving cleaning operation and improving the user experience.

[0094] It should be noted that the present application does not specifically limit the manner in which the liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9 in this embodiment. Alternatively, a pump may be provided at the end of or within the drainage channel 9 to pump the liquid in the first liquid storage chamber 121 into the second liquid storage chamber 111. Specifically, when the cooking appliance activates the cleaning mode, the descaling agent in the second liquid storage chamber 111 is discharged through the drain port 13 to clean scale deposits on the steam generator 3 and other components, such as the pipes. After the descaling agent is completely discharged, the pump automatically begins to operate and pumps the liquid in the first liquid storage chamber 121 into the second liquid storage chamber 111, where it is then discharged through the drain port 13 to flush the steam generator 3 and other components, such as the pipes. Alternatively, while the descaling agent is being discharged, the pump begins to operate and pumps the liquid in the first liquid storage chamber 121 into the second liquid storage chamber 111 until the liquid level in the first liquid storage chamber 121 falls below the lower end of the drainage channel 9 and no further drainage is possible.

[0095] As a preferred embodiment of this embodiment, Figure 10 、 Figure 11 As shown, the water tank 1 has a top opening, which includes a raw water inlet 19 opposite to the first liquid storage chamber 121 and a descaling agent inlet 18 opposite to the second liquid storage chamber 111. The water tank 1 also includes a tank cover 17, which is sealed with the second liquid storage chamber 111 and has a clearance with the first liquid storage chamber 121.

[0096] By configuring the top opening to include a raw water inlet 19 opposite the first liquid storage chamber 121 and a descaling agent inlet 18 opposite the second liquid storage chamber 111, users can inject liquid into the water tank 1 through different openings into the corresponding chambers, preventing incorrect filling and improving the user experience. The water tank 1 also includes a lid 17 to prevent external impurities from entering the water tank 1 through the raw water inlet 19 and the descaling agent inlet 18, ensuring the cleanliness of the water tank 1. Moreover, the box cover 17 is sealed with the second liquid storage chamber 111 and has a clearance with the first liquid storage chamber 121, so that when the cooking utensil is in the cleaning mode, as the liquid in the second liquid storage chamber 111 is gradually drawn into the steam generator 3 and pipeline outside the water tank 1, since the box cover 17 is sealed with the second liquid storage chamber 111, the outside air cannot enter the second liquid storage chamber 111, so the pressure in the second liquid storage chamber 111 will gradually decrease. At this time, the first liquid storage chamber 121 is connected to the outside world, so the first liquid storage chamber 121 is at atmospheric pressure. Under the action of the pressure difference, the liquid in the first liquid storage chamber 121 flows into the second liquid storage chamber 111 through the drainage channel 9, thereby diluting the descaling agent and flushing the scale residue in the pipeline and the steam generator 3. The overall structure is simple, low cost, and easy to assemble.

[0097] As a preferred embodiment of the present application, Figure 1 、 Figure 5 、 Figure 6 As shown, the steam cooking appliance includes a body 2, which is provided with a water tank placement position 21. The water tank 1 can be placed in the water tank placement position 21 in a removable manner. The drain port 13 is provided with a sealing member 7 for opening or closing the drain port 13. The water tank placement position 21 is provided with a trigger member. When the water tank 1 is placed in the water tank placement position 21, the trigger member triggers the sealing member 7 to open the drain port 13.

[0098] By providing a water tank placement position 21 on the body 2, and the water tank 1 being removably placed in the water tank placement position 21, the water tank 1 is removable relative to the body 2, so that the user can remove the water tank 1 and perform corresponding operations when cleaning or adding water to the water tank 1, which is convenient for cleaning and adding water to the water tank 1. At the same time, the drain port 13 is provided with a blocking member 7 for opening or closing the drain port 13. The water tank placement position 21 is provided with a trigger member. When the water tank 1 is placed in the water tank placement position 21, the trigger member triggers the blocking member 7 to open the drain port 13. When the water tank 1 is not placed in the water tank placement position 21, the drain port 13 is closed by the blocking member 7, preventing the liquid in the water tank 1 from flowing to the outside. At the same time, when the water tank 1 is placed in the water tank placement position 21, the trigger member triggers the blocking member 7 to open the drain port 13, thereby realizing the opening of the drain port 13, making the operation more convenient and quick, and improving the user experience.

[0099] It needs to be further explained that Figure 1 The structural shape of a steam cooking appliance under an embodiment of the present application is given, but it does not constitute a limitation on the steam cooking appliance described in the present application. The structural shape of the steam cooking appliance described in the present application can also be a body with a U-shaped frame, the body is provided with a pot placement space, the water tank 1 is arranged in the body, the steam generator 3 is arranged in the body, the body is provided with a head, the head is provided with a steam discharge port, the body can be moved to dock with the pot located in the pot placement space to realize steam delivery, and the steam cooking appliance of this type of configuration can also use the water tank 1 in the present application, and use the water tank 1 to realize descaling operation without secondary water filling.

[0100] In addition, the structure of the water tank 1 used in the steam cooking appliance in the present application also provides a reference for descaling solutions of other devices equipped with a water tank 1 and using raw water.

[0101] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0102] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0103] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A steam cooking appliance capable of cleaning scale, comprising a steam generator and a liquid supply unit for supplying liquid to the steam generator, wherein the liquid supply unit comprises a water tank, characterized in that: The water tank is provided with a first liquid storage chamber and a second liquid storage chamber, and the cooking utensil has a cleaning mode. In the cleaning mode, the first liquid storage chamber is filled with water, and the second liquid storage chamber is filled with a descaling agent. A drain port communicating with the second liquid storage chamber is provided at the bottom of the water tank, and a connecting port is provided between the first liquid storage chamber and the second liquid storage chamber. In the cleaning mode, the liquid level of the second liquid storage chamber changes so that the liquid in the first liquid storage chamber is discharged from the connecting port into the second liquid storage chamber and enters the steam generator through the drain port.

2. A steam cooking appliance capable of cleaning scale according to claim 1, characterized in that: The cooking appliance further comprises a floating member located in the water tank, and the floating member can float with changes in the liquid level in the second liquid storage cavity to open or close the communication port.

3. The steam cooking appliance capable of cleaning scale according to claim 1, characterized in that: The water tank includes a main water tank and a subsidiary water tank installed in the main water tank, the first liquid storage chamber is formed in the subsidiary water tank, and the second liquid storage chamber is formed in the main water tank; or, A partition is provided in the water tank, and the partition divides the internal space of the water tank into the first liquid storage chamber and the second liquid storage chamber.

4. A steam cooking appliance capable of cleaning scale according to any one of claims 1 to 3, characterized in that: The water tank is provided with a water transfer chamber connected to the second liquid storage chamber, the communication port is connected to the first liquid storage chamber, a floating member is provided in the water transfer chamber that changes with the liquid level of the second liquid storage chamber, and when the floating member opens the communication port, the water transfer chamber is connected to the first liquid storage chamber through the communication port.

5. The steam cooking appliance capable of cleaning scale according to any one of claims 1 to 3, characterized in that: The water tank includes a floating member arranged in the second liquid storage cavity and near the communication port. The liquid in the first liquid storage cavity is intermittently discharged into the second liquid storage cavity through the communication port to drive the floating member to open or close the communication port.

6. The steam cooking appliance capable of cleaning scale according to claim 1, characterized in that: The cooking appliance further includes a one-way valve having a closed state in which the communication port is closed and an open state in which the communication port is opened.

7. The steam cooking appliance capable of cleaning scale according to claim 6, characterized in that: In the closed state, the pressure between the first liquid storage chamber and the second liquid storage chamber is balanced; in the open state, the pressure in the second liquid storage chamber is lower than the pressure in the first liquid storage chamber, and the liquid in the first liquid storage chamber flows from the first liquid storage chamber to the second liquid storage chamber under the action of the pressure difference.

8. The steam cooking appliance capable of cleaning scale according to claim 6, characterized in that: The one-way valve is configured to operate under a pressure difference between the first liquid storage chamber and the second liquid storage chamber to switch from the closed state to the open state.

9. The steam cooking appliance capable of cleaning scale according to claim 1, characterized in that: A partition and a drainage channel are provided in the water tank. The partition divides the internal space of the water tank into the first liquid storage chamber and the second liquid storage chamber. The drainage channel is located in the first liquid storage chamber. The drainage channel has a water inlet connected to the first liquid storage chamber and a water outlet connected to the second liquid storage chamber. The liquid in the first liquid storage chamber flows into the second liquid storage chamber through the drainage channel under the action of pressure difference.

10. The steam cooking appliance capable of cleaning scale according to any one of claims 1 to 3 and 6 to 9, characterized in that: The steam cooking appliance includes a body, which is provided with a water tank placement position. The water tank can be placed in the water tank placement position in a removable manner. The drain port is provided with a sealing member for opening or closing the drain port. The water tank placement position is provided with a trigger member. When the water tank is placed in the water tank placement position, the trigger member triggers the sealing member to open the drain port.

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