Cooking equipment

By introducing a water transfer module with dual water transfer zones and a removable water box assembly into the steam oven, efficient management of clean water and wastewater is achieved, solving the problem of insufficient integration caused by the independent structure of the steam oven, and improving the performance and space utilization efficiency of the equipment.

CN121926480APending Publication Date: 2026-04-28QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
Filing Date
2026-01-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing steam ovens have separate structures and fixed capacities for the clean water tank and waste water tank, which leaves room for improvement in the integration of cooking equipment.

Method used

The water transfer module with dual water transfer zones and a removable water box assembly enables flexible water connection through inlet and outlet pipes. It is integrated into the back of the cooking equipment and supports efficient management of clean water and wastewater.

Benefits of technology

It improves the integration of cooking equipment, reduces the reserved space related to water, supports miniaturization design or increases the inner tank volume under the same conditions, and optimizes the performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of kitchen electric equipment, and particularly provides cooking equipment, which comprises a cooking main body, a steam generating device; the underwater conversion module comprises a module main body, and a first underwater conversion area and a second underwater conversion area are formed on the module main body; the pipeline assembly comprises a water inlet pipeline; and a drain line; wherein the underwater rotation module is arranged on the back of the cooking equipment; the cooking equipment further comprises a water box assembly, the water box assembly is arranged on the cooking main body in a removable mode, and the water box assembly can be connected with the underwater rotation module and / or the steam generation device. By means of the structure, the integration level of the cooking equipment can be improved based on the application of the underwater conversion module integrally provided with the two underwater conversion areas to the cooking equipment. On the premise, through cooperation of the underwater rotating module integrated on the back and the removable water box assembly, the use performance of the cooking equipment is expected to be better met.
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Description

Cross-references

[0001] This application claims priority to Chinese patent application CN202512007423.7, filed on December 26, 2025, entitled "Cooking Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of kitchen appliance technology, specifically providing a cooking device. Background Technology

[0003] With the diversification of kitchen appliances, cooking devices with steaming functions, such as steam ovens and steam-grill combos, have emerged on the market. The cooking principle of steaming is to provide high-temperature steam to the inner pot where the food is to be cooked. In an environment where steam permeates the inner pot, the food is cooked by adjusting parameters such as steam temperature, steam volume, and cooking time.

[0004] Taking a steam oven as an example, a typical steam oven structure includes a clean water tank and a waste water tank (located at the top of the steam oven between the main body and the inner liner). Both the clean water tank and the waste water tank can be removed from the steam oven in a removable manner, such as by pulling them out. For example, the clean water tank can be removed from the steam oven, water can be added to the outside of the steam oven, and then it can be reinstalled. Based on this, water is supplied to the steam generator through the clean water tank, the steam generator heats the water and converts it into high-temperature steam, and the steam is then directed to the inner liner, thus completing the supply of steam as a cooking medium.

[0005] However, since the clean water tank and wastewater tank are usually structurally and / or functionally independent structures, and their capacities are relatively fixed, there is still room for improvement in optimizing the integration of cooking equipment. Summary of the Invention

[0006] This application aims to solve, at least to some extent, the aforementioned technical problems and / or solve at least a portion of the aforementioned technical problems.

[0007] In view of this, this application provides a cooking device, comprising: a cooking body; a steam generator; a water transfer module, which includes a module body forming a first water transfer zone and a second water transfer zone; and a pipeline assembly, comprising: a water inlet pipe, through which water from outside the cooking device can reach the first water transfer zone; and a drain pipe, through which water from the second water transfer zone can reach the outside of the cooking device; wherein the water transfer module is disposed on the back of the cooking device; the cooking device further includes a water tank assembly, which is removably disposed on the cooking body, and the water tank assembly can be connected to the water transfer module and / or the steam generator.

[0008] This configuration enables the application of a water transfer module with integrated dual water transfer zones in cooking equipment, improving the overall integration of the equipment. Furthermore, the collaboration between the water transfer module integrated at the back and the removable water tank assembly promises to better meet the performance requirements of the cooking equipment.

[0009] Regarding the water inlet pipe, the water source outside the cooking equipment can be from a water purification device, a water pipe equipped with a water purification device, a fixed water source, etc. The exterior of the cooking equipment can also be a sewer, a wastewater collection container, or any scenario capable of absorbing wastewater (such as a ground-level site). Based on this, with the improvement of the dual water zones in the water transfer module, in this application, because the two water transfer zones within the module body can more flexibly switch between connected states with the outside, there is no need to reserve a large volume adapted to the usage. For example, the reliability of the cooking equipment can be ensured through multiple fixed water inlets and outlets, or by adding or removing water as needed based on parameters. This significantly reduces the space required for water-related aspects of the cooking equipment. On this basis, it is expected that the cooking equipment can be miniaturized, or that a larger volume can be reserved for the inner tank under the same conditions.

[0010] It is understood that those skilled in the art can determine the structural form of the main body of the module and the number of its components, the structural form / size / proportion / number of the first / second underwater transfer zones, and their relative positions, etc., according to actual needs. For example, the main body of the module can be a shell structure consisting of two parts that are fastened together (top and bottom / front and back), or a structure in which multiple parts are recombined between fastenings, etc., and the first / second underwater transfer zones can be arranged adjacently or spaced apart. For example, the first and second underwater transfer zones are roughly two interlocking horizontal U-shaped structures.

[0011] It is understood that those skilled in the art can determine the connection position / method between any pipeline and the water transfer module, the relative positions between multiple pipelines, and whether the pipelines are relatively independent or integrated, according to actual needs. For example, the connection position between the pipeline and the water transfer module can be set at any reasonable location, such as the top or side. Furthermore, it can be directly set on the original structure of the module body, or a structure (such as a recess or protrusion) can be machined into the module body, and the corresponding connection port or other connection structure can be set in that structure.

[0012] It is understood that those skilled in the art can determine the structural form of the mechanism by which the water tank assembly can be removed from the cooking body, as well as the corresponding specific removal method, based on actual needs. For example, the removal method may be sliding, flipping, a releasable locking mechanism, or a combination of various movements.

[0013] It should be noted that the phrase "the water box assembly can be connected to the water transfer module and / or the steam generator" includes three scenarios:

[0014] (1) The water box assembly is directly connected to the steam generator, which may include, but is not limited to, unidirectional connection (e.g., water supply only), bidirectional connection (e.g., water supply and residual water recovery), multi-line unidirectional connection (e.g., water supply, descaling medium and other media transportation), multi-line bidirectional connection (at least one function of the multi-line unidirectional connection also includes a path back to the water box assembly), etc.

[0015] (2) The water box assembly is directly connected to the water transfer module, thereby allowing the water box assembly to be indirectly connected to the steam generator through the water transfer module, such as to the first water transfer zone and / or the second water transfer zone of the water transfer module. For each connection method, the four connection methods of the aforementioned situation (1) can be realized when necessary.

[0016] (3) The water box assembly is directly connected to the steam generator on one hand, and indirectly connected to the steam generator on the other hand through the water transfer module. The connection method with the water transfer module can refer to the above-mentioned situation (2), and the connection method with the steam generator and / or the water transfer module can refer to the above-mentioned situation (1).

[0017] In one possible implementation of the cooking equipment described above, the water tank assembly includes at least a clean water zone that can be connected to the water transfer module and / or the steam generator.

[0018] This configuration allows for optimization of the cooking equipment's performance through the replenishment of clean water from the water tank assembly. This can include, but is not limited to: replenishing the steam generator with clean water in the event of an external water source failure; and employing methods such as supplying water only to the clean water zone or supplying water to the clean water zone simultaneously for specific cooking processes (e.g., a cooking mode, a specific cooking stage, a specific ingredient, a specific need, etc.).

[0019] In one possible implementation of the above-mentioned cooking equipment, the water tank assembly includes at least one auxiliary medium zone, which can be connected to the clean water zone and / or the water transfer module and / or the steam generator.

[0020] This configuration allows for further optimization of the performance of cooking equipment. For example, auxiliary media can include, but are not limited to, those capable of achieving different flavor effects.

[0021] It is understood that those skilled in the art can determine the timing and specific method of connecting the auxiliary medium to the target location based on actual needs. For example, when cooking reaches a certain stage, the auxiliary medium area is connected to the first water transfer zone, so that the auxiliary medium reaches the steam generator via the first water transfer zone.

[0022] In one possible implementation of the above-mentioned cooking equipment, the auxiliary medium zone includes a descaling medium zone, and the piping assembly includes a descaling medium extraction pipe, wherein the descaling medium zone is connectable to the first water transfer zone via the descaling medium extraction pipe.

[0023] This configuration allows for increased integration of cooking appliances with descaling functions through the inclusion of a water tank assembly.

[0024] In one possible implementation of the above-mentioned cooking equipment, the first water transfer zone includes a first pressure relief port, and the second water transfer zone includes a second pressure relief port, wherein the first pressure relief port and the second pressure relief port are integrated or separately configured.

[0025] In an integrated setup, the two can be combined into one or integrated to a certain extent. In a separate setup, the locations of the first / second pressure relief ports can be flexibly adjusted according to actual needs.

[0026] In one possible implementation of the above-mentioned cooking device, the second water transfer zone is located below the first water transfer zone, the first pressure relief port is located at the top of the first water transfer zone and / or the second pressure relief port is located on the side of the second water transfer zone.

[0027] This configuration provides a specific form for the separate placement of pressure relief ports.

[0028] By placing the second pressure relief port on the side of the second water transfer zone, the pressure relief of the wastewater receiving area can be ensured nearby and promptly, thus guaranteeing its reliability. Compared to the first water transfer zone which contains clean water, the pressure relief of the second water transfer zone is usually more urgent due to factors such as the cleanliness of the water, the possibility of gases contained within the water, and the range of temperature variations. The pressure relief method, venting direction (e.g., horizontal, inclined), and pressure relief principle of the pressure relief port can be flexibly selected according to actual needs.

[0029] In one possible implementation of the above-mentioned cooking device, the module body forms a stepped surface on the top of the box, and the first pressure relief port is located on the high side of the stepped surface; and / or the cooking device includes a water level detection component, which is located in the first water transfer zone corresponding to the low side of the stepped surface.

[0030] The water level detection components may include multiple components, exemplarily including the aforementioned water level detection component (such as the first water level detection component) disposed on the lower side of the stepped surface. The first water level detection component is mainly used to detect the water level in the first water transfer zone. Furthermore, a second water level detection component may be disposed at a position higher than the first water level detection component. A flow-limiting component may also be disposed on the cooking equipment corresponding to the water inlet pipe; for example, a flow-limiting component may be disposed simultaneously with the second water level detection component, or a flow-limiting component may replace the second water level detection component.

[0031] The first water level detection component (such as an electronic float) can detect the water level in the first water transfer zone. The second water level detection component (such as a mechanical float) can prevent overflow by closing the inlet in case the first water level detection component malfunctions. The flow limiting component is mainly used to limit the water intake. Specifically, since the parameters (such as flow rate) of the pumps corresponding to the inlet pipes differ, assuming a large flow rate, during the time it takes for the first water level detection component to transmit the signal to the controller, the water level may rise rapidly to a position that can lift the float, thus triggering the second water level detection component, which serves as a safety mechanism, and affecting the user's continuous experience. To address this, a flow limiting component is configured in the inlet pipe. For example, a flow limiting component can close the inlet pipe when the water intake reaches a certain set amount, reducing the probability of the safety mechanism being activated.

[0032] In one possible implementation of the above-mentioned cooking device, the module body forms a stepped surface on the top of the box, and the cooking device includes a descaling pump, wherein the descaling medium contained in the descaling medium zone can be delivered to the first water transfer zone by means of the descaling pump, wherein the descaling pump is disposed on the lower side of the stepped surface.

[0033] This configuration improves the integration of structures related to functions such as water supply, descaling, pressure relief, and detection.

[0034] In one possible implementation of the above-mentioned cooking device, the second water transfer zone includes a first part and a second part arranged in a horizontal direction, and at least a portion of the second part protrudes out of the first water transfer zone in a certain direction.

[0035] This configuration allows for a larger vertical space in the first water transfer zone. This, in turn, increases the volume of the second water transfer zone to some extent. For example, the second pressure relief port is located on the side of the second section. Therefore, by adjusting the structure of the second section, the location of the second pressure relief port can be adjusted, potentially optimizing the pressure relief function through local structural adjustments.

[0036] It is understood that those skilled in the art can determine the structural form and connection method of the first and second parts according to actual needs. For example, the connection area between the two parts can be maximized to achieve complete connection, the connection position can be reduced in diameter (e.g., a partition can be provided with a connecting hole or other connection structure), or a filtering / guiding structure can be provided between the two parts (e.g., the bottom of the second part is a slope).

[0037] In one possible implementation of the above-mentioned cooking device, the main body of the module is provided with a first guide structure at the bottom position corresponding to the first water transfer zone; and / or the main body of the module is provided with a second guide structure at the top position corresponding to the first part; and / or the main body of the module is provided with a third guide structure at the bottom position corresponding to the second water transfer zone.

[0038] The first guiding structure prevents impurities from lingering in the first water transfer zone, which requires high cleanliness and is difficult to clean. The first guiding structure can be a slope, an arc, or other structure that creates a height difference at the starting end. For example, at the lower end of the first guiding structure, a first steam generator pipe is configured to connect to the inlet of a steam generator. The second guiding structure allows the gas requiring depressurization to rise more smoothly to the aforementioned second depressurization port. The third guiding structure allows the water in the second water transfer zone to accumulate better. The second / third guiding structures can have the same or different structural forms from the first guiding structure, and the second and first guiding structures can be independently configured or at least integrated to some extent. For example, the first guiding structure is a slope formed on the upper support plate, and the second guiding structure is an arc formed on the lower support plate, with connecting ribs between the two support plates. Attached Figure Description

[0039] The preferred embodiments of this application are described below with reference to a steam oven / grill combo and an external water purifier connected to the water inlet pipe, in conjunction with the accompanying drawings. In the drawings:

[0040] Figure 1 This application shows a schematic diagram of the structure of a steam oven according to an embodiment of the present application. Figure 1 ;

[0041] Figure 2 This application shows a schematic diagram of the structure of a steam oven according to an embodiment of the present application. Figure 2 ;

[0042] Figure 3 This invention provides a schematic diagram of the water tank assembly in a steam oven according to an embodiment of the present application.

[0043] Figure 4 This application shows a schematic diagram of the structure of the water transfer module in a steam oven according to an embodiment of the present application. Figure 1 ;as well as

[0044] Figure 5 This application shows a schematic diagram of the structure of the water transfer module in a steam oven according to an embodiment of the present application. Figure 2 .

[0045] In the attached image:

[0046] 100. Steam oven / grill combo;

[0047] 1. Box body; 2. Inner liner; 3. Steam generator;

[0048] 4. Underwater transfer module;

[0049] 41. Main body of the module;

[0050] 411. First Water Transfer Zone;

[0051] 412. Second water transfer zone; 4121. First part; 4122. Second part;

[0052] 413. Separated structure;

[0053] 4141. First guiding structure; 4142. Second guiding structure; 4143. Third guiding structure;

[0054] 421. First pressure relief port; 422. Second pressure relief port;

[0055] 5. Water box assembly;

[0056] 51. Water tank body; 52. Clear water area;

[0057] 6. Piping components;

[0058] 61. First steam generator pipeline; 62. Second steam generator pipeline; 63. Water inlet pipeline; 64. Drainage pipeline; 65. Descaling medium extraction pipeline; 66. Clean water supply pipeline; 67. First pressure relief pipeline; 68. Second pressure relief pipeline; 69. Inner tank residual water recovery pipeline;

[0059] 71. Water supply pump; 72. Drainage pump; 73. Descaling pump; 74. Inlet valve;

[0060] 81. First water level detection component; 82. Second water level detection component; 83. Third water level detection component. Detailed Implementation

[0061] Preferred embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. For example, although this embodiment is described in conjunction with a steam oven / grill combo and an external water purifier connected to the water inlet pipe, it is clear that those skilled in the art can flexibly adjust the type of cooking equipment, the water source connected to the water inlet pipe, etc. For instance, the cooking equipment could also be any device containing a steaming function, such as a steam oven, a steam oven / grill combo, or any other device.

[0062] It should be noted that in the description of this application, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can still be implemented without certain specific details. In some examples, the structure and principles of steam ovens well-known to those skilled in the art are not described in detail, in order to highlight the main points of this application.

[0065] The following will refer to Figures 1 to 5 This application is to be described in at least a portion thereof.

[0066] Reference Figures 1 to 5 In one possible implementation, the steam oven mainly includes a cooking body, which comprises a cabinet 1 and an inner liner 2 disposed within the cabinet. The inner liner forms a cooking chamber capable of holding the food to be cooked. For example, the inner liner may have a shelf, on which the food to be cooked can be placed directly or placed in a dish (such as a plate) placed on the shelf. The structures related to the steaming function of the steam oven mainly include a steam generator 3, a water transfer module 4, a water tank assembly 5, and a piping assembly 6. The steam generator is mainly used to generate steam as the cooking medium and send the steam into the cooking chamber. The water transfer module 4 includes a module body 41, which forms a first water transfer zone 411 and a second water transfer zone 412. The first water transfer zone is mainly used to collect clean water and distribute it to the steam generator. The second water transfer zone is mainly used to collect wastewater and discharge it promptly. In this application, the water transfer module 4 is located on the back of the inner tank, connecting the first water transfer zone and the water purification equipment, as well as the wastewater zone and the outside (such as the drain pipe). This ensures the continuous and reliable operation of the steam oven without the need for manual water addition or removal. The water box assembly 5 may include one or more zones. In this example, the water box assembly includes a water box body 51 (frame) located at the top of the inner tank, with two clean water zones 52 connected to the first water transfer zone within the water box body. The structure corresponding to the clean water zone (clean water box) can be retractably installed in the water box body. Obviously, this structural form is only an exemplary description (it can be understood as providing only one solution with the water box assembly retained at the top). Those skilled in the art can adjust the structural form, number / function of the water box assembly, etc., according to actual needs, such as adjusting the water box to include only one clean water box, or adding a chamber to accommodate auxiliary media such as descaling liquid and flavoring agents. Since this application integrates the water transfer module on the back of the inner tank, the structure of the water box assembly can be designed with a smaller volume. When the water tank assembly includes multiple functions, the various functional areas can be flexibly combined and configured.

[0067] In the example, the main body 41 of the module is roughly a box structure, and the second water transfer zone 412 is located below the first water transfer zone 411. The height of the first water transfer zone is greater than that of the second water transfer zone, and therefore its volume is also significantly larger. For example, the height of the first water transfer zone is 3-5 times that of the second water transfer zone. This allows the larger first water transfer zone to hold more clean water, thus reducing the frequency of water intake, while the smaller second water transfer zone, which cannot store large amounts of wastewater, allows wastewater to be discharged promptly.

[0068] In one possible implementation, the second water transfer zone 412 includes a first portion 4121 on the left and a second portion 4122 on the right, wherein the second portion extends horizontally (relative to the right side of the module body), thereby appropriately increasing the volume of the second water transfer zone and reserving more installation space at the location corresponding to the second portion to configure the corresponding structure.

[0069] In one possible implementation, the interior of the module body 41 is divided into the aforementioned first water transfer zone and second water transfer zone via a partition structure 413. In this example, the partition structure is a partition plate, and the structure corresponding to the partition structure is the first part of the second water transfer zone. Obviously, those skilled in the art can flexibly select the structural form of the partition structure according to actual needs, and flexibly adjust the coverage of the partition structure according to the specific configuration of the second water transfer zone. For example, the partition structure can also be a combination of multiple structures, and the partition structure can also cover a part of the second part.

[0070] In one possible implementation, a first guide structure 4141 is provided at the top of the partition structure. The first guide structure 4142 is mainly used to guide impurities in the water to the position near the left side where water is supplied to the steam generator, so as to avoid impurities from remaining at the bottom of the first water transfer zone, which has high cleanliness requirements and is difficult to clean, for a long time. A second guide structure is provided at the bottom of the partition structure to allow gas to rise more smoothly to the second pressure relief port on the right side. As in this example, the first / second guide structures are located on the slopes on both sides of the partition plate.

[0071] In one possible implementation, a third guide structure 4143 is provided inside the box at the position corresponding to the bottom of the second water transfer zone. The third guide structure is mainly used to converge water in the relatively narrow wastewater zone to the left side. In this example, the bottom of the first part and the second part is roughly a convergence structure composed of three planes, with the two sides concave towards the middle and the right side sloping downwards to the left. The top height of the second part is greater than that of the first part. The first part and the second part are completely connected (the connected area is the full area of ​​the right side of the first part). The extension length of the second part is less than the width of the box (e.g., 1 / 3 to 1 / 2 of the width of the box).

[0072] Clearly, the structural form of the third guiding structure can be flexibly adjusted according to actual needs, such as a plane or curved surface sloping downwards from right to left. Furthermore, those skilled in the art can determine the structural form, size, and connection method between the first and second parts according to actual needs. For example, a stepped surface can be formed between the bottom of the second part and the bottom of the first part.

[0073] In cases where clean water, wastewater / residual water enter the first water transfer zone and the second water transfer zone, the internal pressure may increase and may hinder the corresponding water circulation. Therefore, by setting a pressure relief port to balance the air pressure inside the main module, the reliability of the steam oven is ensured.

[0074] In one possible implementation, the pressure relief port includes a first pressure relief port 421 corresponding to the first water transfer zone and a second pressure relief port 422 corresponding to the second water transfer zone, wherein the first pressure relief port is located near the top of the box body, and the second pressure relief port is located on the side or near the side of the second part.

[0075] In one specific example, the first pressure relief port is located at the top near the right side, extending roughly vertically, and the second pressure relief port is located on the right side of the second part, extending roughly horizontally.

[0076] In the example, steam generator 3 is a steam generator set at the top of the inner liner. Obviously, the structure, type, and location of the steam generator can be flexibly adjusted according to actual needs. For example, the steam generator can also be an evaporation plate, multiple steam generators can be included, and the steam generator can be set at the top / back / bottom of the inner liner.

[0077] In one possible implementation, the piping assembly 6 mainly includes a first piping assembly connecting the water transfer module 4 to the steam generator 3, and a second piping assembly connecting the water transfer module 4 to the outside. The first piping assembly includes a first steam generator pipe 61 and a second steam generator pipe 62. The first water transfer zone is connected to the inlet of the steam generator (the inlet pipe of the steam generator) via the first steam generator pipe, and the outlet of the steam generator is connected to the second water transfer zone (the waste water recovery pipe of the steam generator) via the second steam generator pipe. The second piping assembly mainly includes an inlet pipe 63 and a drain pipe 64. Water from an external water purification device of the steam oven can reach the first water transfer zone via the inlet pipe; water in the second water transfer zone can reach the external drain pipe of the steam oven via the drain pipe.

[0078] In one possible implementation, the piping assembly further includes a third piping assembly related to descaling. This third piping assembly mainly includes a descaling medium extraction pipeline 65, a descaling medium dispensing pipeline, and a descaling residual liquid recovery pipeline. In this example, the descaling medium is citric acid. There is a location on the water tank assembly of the steam oven or at any other reasonable location near the front top where citric acid can be added. After the user prepares the citric acid, it can be added to the steam oven through this location. Under the action of the descaling pump 73, the citric acid is extracted into the clean water transfer zone. In this example, after citric acid enters the first water transfer zone, the descaling medium dispensing pipeline is shared with the aforementioned first steam generator pipeline, and the descaling residue recovery pipeline is shared with the aforementioned second steam generator pipeline. Thus, under the action of the water pump 71, the mixed liquid (containing clean water and descaling medium) in the first water transfer zone is dispensed to the steam generator via the first steam generator pipeline. After descaling is completed (e.g., after heating to a certain temperature (e.g., 80°C) and soaking for a certain time (e.g., 45 minutes)), under the action of the drain pump 72, the generated waste liquid is recovered to the wastewater transfer zone via the second steam generator pipeline or discharged outside the steam oven. In one possible implementation, the piping assembly also includes a clean water supply pipeline 66 connecting the clean water zone of the water tank assembly to the first water transfer zone.

[0079] In one possible implementation, the piping assembly further includes a fourth piping assembly related to the pressure relief of the water transfer module. This fourth piping assembly mainly includes a first pressure relief pipe 67 connected to the first pressure relief port and a second pressure relief pipe 68 connected to the second pressure relief port. For example, a heat dissipation assembly is typically installed on the top of a steam oven. This assembly mainly includes a cooling fan and a cooling duct. Under the action of the cooling fan, gas flows through the cooling duct and is discharged to the outside of the steam oven, thus dissipating heat from the top area. In this example, the first pressure relief pipe 67 and the second pressure relief pipe 68 are two independent pipes respectively connected to the cooling duct. Exemplarily, both the first and second pressure relief pipes are connected to the cooling duct near the cooling fan.

[0080] In one possible implementation, the piping assembly further includes an inner tank waste water recovery pipe 69 related to liquid recovery within the cooking chamber. One end of the inner tank waste water recovery pipe is connected to or near the bottom of the inner tank, and the other end is connected to the wastewater area. This allows for timely recovery of liquid from the bottom of the inner tank during cooking. If the inner tank has a self-cleaning function, it can also be used to form a self-cleaning circulation loop (bottom of inner tank - inner tank waste water recovery pipe - wastewater area - cleaning assembly - bottom of inner tank). In this example, the connection point between the inner tank waste water recovery pipe and the second water transfer zone is centrally located with the second pressure relief port, both situated on the side of the second portion (the second pressure relief port is located above).

[0081] Corresponding to the piping components, the steam oven also includes a pump unit to ensure that the liquid within the piping can flow under power guidance. In one possible embodiment, a water supply pump 71 for delivering clean water from the first water transfer zone to the steam generator, a drain pump 72 for discharging water from the wastewater zone, and a descaling pump 73 for extracting descaling media are disposed in the module body 41. Clean water from an external water purification device can enter the first water transfer zone via an inlet valve 74 located on the right side of the housing.

[0082] In this example, the water supply pump 71 and descaling pump 73 are diaphragm pumps, and the drain pump 72 is an impeller pump. The water supply pump 71 is positioned approximately vertically on the left side of the module body. The drain pump 72 is positioned approximately horizontally at the bottom left side of the housing. In this example, the first part of the housing extends a certain length along the left side to facilitate the installation of the drain pump. The descaling pump 73 is positioned approximately horizontally at the top of the housing. In this example, the right side of the top of the housing is higher than the left side, thus forming a stepped surface, and the descaling pump is installed on the left side. Clearly, where reasonably feasible, those skilled in the art can flexibly adjust the type and placement of each pump in the pump assembly according to actual needs.

[0083] In one possible implementation, a first water level detection component 81 is provided on the left side of the aforementioned stepped surface inside the housing, and a second water level detection component 82 is provided at the connection point between the water inlet valve and the first water transfer zone. In this example, the first water level detection component is an electronic float that can detect the water level in the first water transfer zone during normal use, and the second water level detection component is a mechanical float primarily used to prevent overflow (as a safety feature, activated less frequently). There is a height difference between the detection position of the electronic float and the trigger position of the mechanical float. Those skilled in the art can determine the height difference between the two according to actual needs so that the combination of the two detection components can ensure the reliability of the steam oven. In this application, the stepped surface provides a mounting position for the descaling pump on the outside of the housing, while simultaneously creating the low position required for the first water level detection component on the inside of the housing, thus improving the compactness of the module body. A third water level detection component 83 is provided at the position corresponding to the second water transfer zone. In this example, the third water level detection component is a water level sensor, located near the right side of the second part.

[0084] In addition, flow-limiting components (not shown) can be configured at positions corresponding to the inlet valve or at reasonable locations in the inlet pipe. For example, the flow-limiting components are mainly used to reduce the probability of the mechanical float being triggered by limiting the flow rate. Compared with not setting a flow-limiting component, the height difference between the detection position of the electronic float and the trigger position of the mechanical float can be reduced. This is because the flow-limiting component, as an "ally" of the electronic float, ensures the reliability of the water volume in the first water transfer zone through the cooperation between the two. Furthermore, the flow-limiting component, as a "gatekeeper" of the mechanical float, reduces the probability of the mechanical float being triggered.

[0085] Obviously, those skilled in the art can determine the structure and location of the first / second / third water level detection components and flow limiting components according to actual needs.

[0086] In this example, the cooking device is a steam oven, therefore it also includes structures related to the baking function. The baking function works by providing circulating hot airflow to the cooking chamber containing the food, thus cooking it using hot air baking. Cooking can be done solely with hot airflow, but steam can also be introduced (e.g., in the tender baking mode). Correspondingly, the structures of the steam oven for the baking function typically include a temperature-regulating fan (which guides the airflow to form a hot air stream), hot air heating components (such as heating coils, primarily used to heat the air near the temperature-regulating fan), and a fan shroud assembly (forming a hot air chamber that houses the fan and heating coils, and has air inlets and outlets that connect to the cooking chamber to form a circulating airflow). Clearly, the specific structural forms of these components and how they constitute the steam oven can be flexibly adjusted according to actual needs.

[0087] In addition, heating elements such as heating tubes are installed at the top, sides, and bottom of the inner pot so that the temperature of the cooking medium (hot air and / or steam) in the cooking chamber can be adjusted when needed.

[0088] As can be seen, in the preferred embodiment of this application, by integrating the dual-function water transfer zone into the water transfer module located on the back of the inner tank, the integration level of the cooking equipment is significantly improved, provided that an external water purification device is connected. Through the cooperation of the side water transfer module and the top water tank assembly, it is possible to expand the functionality of the cooking equipment, or rather, to integrate multiple functions into the cooking equipment. Furthermore, by configuring the piping components, pump, and detection components on the main body of the module, the integration level is further improved.

[0089] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A cooking device, characterized in that, The cooking equipment includes: The main cooking ingredient; Steam generating equipment; A water transfer module includes a module body, the module body forming a first water transfer zone and a second water transfer zone; and Piping assemblies, including: A water inlet pipe, at least allowing water from outside the cooking appliance to reach the first water transfer zone; and The drain pipe allows water in the second water transfer zone to reach the outside of the cooking equipment at least via the drain pipe. The water transfer module is located on the back of the cooking device; The cooking device also includes a water tank assembly, which is removably disposed on the cooking body and can be connected to the water transfer module and / or the steam generator.

2. The cooking apparatus according to claim 1, characterized in that, The water box assembly includes at least a clean water zone, which can be connected to the water transfer module and / or the steam generator.

3. The cooking apparatus according to claim 2, characterized in that, The water box assembly includes at least one auxiliary medium zone, which can be connected to the clean water zone and / or the water transfer module and / or the steam generator.

4. The cooking apparatus according to claim 3, characterized in that, The auxiliary medium zone includes a descaling medium zone. The piping assembly includes: The descaling medium extraction pipeline connects the descaling medium zone to the first water transfer zone.

5. The cooking apparatus according to claim 1, characterized in that, The first water transfer zone includes a first pressure relief port, and the second water transfer zone includes a second pressure relief port. The first pressure relief port and the second pressure relief port can be integrated or set separately.

6. The cooking apparatus according to claim 5, characterized in that, The second water transfer zone is located below the first water transfer zone. The first pressure relief port is located at the top of the first water transfer zone and / or the second pressure relief port is located on the side of the second water transfer zone.

7. The cooking apparatus according to claim 6, characterized in that, The main body of the module forms a stepped surface on the top of the box. The first pressure relief port is located on the higher side of the stepped surface; and / or The cooking device includes a water level detection component, which is disposed in the first water transfer zone at a position corresponding to the lower side of the stepped surface.

8. The cooking apparatus according to claim 4, characterized in that, The main body of the module forms a stepped surface on the top of the box. The cooking equipment includes a descaling pump, which can deliver the descaling medium contained in the descaling medium zone to the first water transfer zone. The descaling pump is located on the lower side of the stepped surface.

9. The cooking apparatus according to claim 1, characterized in that, The second water transfer zone includes a first part and a second part arranged in a horizontal direction, and at least a portion of the second part protrudes out of the first water transfer zone in a certain direction.

10. The cooking apparatus according to claim 9, characterized in that, The main body of the module is provided with a first guide structure at a position corresponding to the bottom of the first water transfer zone; and / or The main body of the module has a second guide structure at the top position corresponding to the first part; and / or The main body of the module is provided with a third guide structure at the bottom position corresponding to the second water transfer zone.