Steam generating device, clothes treating equipment and cooking utensil

Abstract

The invention discloses a steam generation device, clothes processing equipment and a cooking utensil, the steam generation device comprises a shell, a heating assembly, a water supplementing waterway and a water supply structure, the shell is provided with an evaporation cavity, the shell is further provided with a steam outlet communicating with the evaporation cavity, and the steam outlet is used for discharging steam in the evaporation cavity; the heating assembly is arranged on the shell and can heat liquid in the evaporation cavity to generate steam. The water supplementing flow path comprises a water inlet and a water supplementing opening, and the water supplementing opening communicates with the evaporation cavity. The water supply structure supplements liquid to the water supplementing flow path through the water inlet; the water supplementing flow path is further configured to be communicated in a one-way mode in the liquid flowing direction from the water inlet to the water supplementing opening. The steam generation device can stably supply water, so that the stability of steam output is improved.

Description

Technical Field

[0001] This application relates to the field of steam generating equipment technology, and in particular to a steam generating device, a clothing treatment device, and a cooking appliance. Background Technology

[0002] Garment processing equipment, such as garment steamers, steam treatment machines, and steam irons, uses high-temperature steam to iron clothes. Taking a garment steamer as an example, it mainly consists of a steam generator, a water tank, and an ironing head. During operation, the water tank supplies water to the evaporation chamber of the steam generator. The water is heated and vaporized in the evaporation chamber to produce steam. The steam then acts on the clothes through the ironing head to complete the ironing process.

[0003] However, during the continuous generation of steam in the evaporation chamber, the high-pressure steam formed inside the chamber can easily cause some water to flow back into the water supply tank, thereby interfering with the normal water supply from the water supply tank to the evaporation chamber, causing a delay in water supply, which in turn disrupts the stability of steam output and affects the ironing effect. Summary of the Invention

[0004] This application provides a steam generator, a clothing treatment device, and a cooking appliance that can stably supply water, thereby improving the stability of steam output.

[0005] To achieve the above objectives, a first aspect of this application provides a steam generating apparatus, comprising: The housing is provided with an evaporation chamber, and the housing is also provided with a steam outlet communicating with the evaporation chamber, the steam outlet being used to discharge the steam in the evaporation chamber; A heating assembly, disposed in the housing, capable of heating the liquid within the evaporation chamber to generate steam; and A water supply path includes an inlet and a outlet, the outlet being connected to the evaporation chamber; and The water supply structure replenishes liquid to the water replenishment path via the water inlet; The water replenishment path is also configured to be unidirectionally oriented in the liquid flow direction from the water inlet to the water replenishment outlet.

[0006] In some embodiments, the liquid in the water supply path is heated before entering the evaporation chamber via the water inlet.

[0007] In some embodiments, the heating assembly can heat both the liquid in the evaporation chamber and the liquid in the water supply path simultaneously; Alternatively, the steam generator may further include a heating structure for heating the liquid in the water supply path.

[0008] In some embodiments, the steam generator further includes a drive unit for driving the liquid in the water supply path to flow unidirectionally in the liquid flow direction from the inlet to the water supply outlet.

[0009] In some embodiments, the housing includes a base assembly and a steam hood, the steam hood being connected to the base assembly and cooperating with the base assembly to form the evaporation chamber, the steam hood having the steam outlet, and the water supply path being at least partially disposed on the steam hood.

[0010] In some embodiments, the steam hood has a top-closed water supply cavity, a water inlet communicating with the water supply cavity, and a water inlet communicating with the water supply cavity and the evaporation cavity respectively. The water supply path also includes the water supply cavity, and the water inlet, the water supply cavity, and the water inlet are connected in sequence.

[0011] In some embodiments, the bottom of the water replenishment cavity is open and abuts against the heating surface of the heating component; or, the bottom wall of the water replenishment cavity is a heat-conducting plate, which abuts against the heating surface of the heating component.

[0012] In some embodiments, the steam hood includes an outer cover and a water-proof portion connected together, the outer cover being supported by the base assembly and having the steam outlet; The outer cover is disposed around the periphery of the water-proof part, and cooperates with the outer peripheral wall of the water-proof part and the base assembly to form the evaporation chamber.

[0013] In some embodiments, the steam hood further includes a surrounding panel; The enclosure is connected to the inner wall of the outer cover and cooperates with the inner wall to form the water replenishment cavity. The water inlet is located on the outer cover, and the water replenishment outlet is located on the enclosure. Alternatively, the enclosure is connected to the outer side wall of the outer cover and cooperates with the outer side wall to form the water replenishment cavity, the water inlet is located on the enclosure, and the water replenishment port is located on the outer cover.

[0014] In some embodiments, at least two water supply channels are provided, and the water supply chambers in the at least two water supply channels are spaced apart circumferentially along the steam hood.

[0015] In some embodiments, the water supply structure includes a water tank, the base assembly has a water supply trough, the steam hood is disposed on the water supply trough, the water inlet is connected to the water supply trough, and the water tank is used to supply water to the water supply trough.

[0016] In some embodiments, at least a portion of the water replenishment chamber is immersed in liquid within the water supply tank during operation of the steam generator.

[0017] In some embodiments, a one-way valve is provided at both the water inlet and the water supply outlet.

[0018] In some embodiments, the base assembly further includes: The first insertion part is connected to the base body and has a water outlet channel; The water tank includes: The box body; and The second connector is connected to the main body of the tank, and the first connector has the water supply port; The second plug-in part is inserted into and sealed to the first plug-in part, and the water supply port is connected to the water supply tank through the water outlet channel.

[0019] A second aspect of this application provides a garment processing device, comprising: The steam generator as described in the above embodiments, and The ironing head is connected to the steam outlet of the evaporation chamber.

[0020] A third aspect of this application provides a cooking utensil, comprising: Base; The steam generator as described in the above embodiment is installed on the base; and A cookware is mounted on the base, and the steam outlet supplies steam into the cookware.

[0021] In the steam generator provided in this application embodiment, the water supply path achieves unidirectional flow in the liquid flow direction from the inlet to the outlet. When the heating component is working, the water in the evaporation chamber is heated and boils to generate steam, and the pressure in the evaporation chamber gradually increases. If the water supply path does not have unidirectional flow capability, the high pressure in the evaporation chamber may push the water back into the water supply path or even the water supply structure, causing water supply interruption, which in turn causes intermittent steam output and affects the ironing effect. However, the unidirectional water supply path of this application can avoid this reverse pressure transmission. The liquid in the water supply structure can flow from the inlet to the outlet and enter the evaporation chamber under its own gravity or external pressure. When the pressure in the evaporation chamber increases, the unidirectional flow structure will automatically close the reverse channel to prevent water from being pushed back, ensuring a continuous and stable water supply, thereby improving the stability of steam output.

[0022] The water supply path continuously replenishes an appropriate amount of water to the evaporation chamber, keeping the liquid level in the evaporation chamber stable. This allows the steam sprayed from the ironing head to act evenly on the clothes, avoiding localized overheating or incomplete wrinkle removal caused by unstable steam. At the same time, it reduces the risk of the heating element burning out due to water supply interruption, extending the service life of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a garment processing device in one embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of a steam generator in one embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the steam hood and heating assembly in one embodiment of this application; Figure 4 This is a schematic diagram of the internal structure of the steam hood in one embodiment of this application; Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0025] Explanation of icon numbers: 100. Steam generator; 10. Shell; 1. Base assembly; 101. Mounting cavity; 102. Water supply tank; 103. Mounting groove; 11. Base body; 12. First insertion part; 13. Annular bracket; 14. Seal; 15. Cover; 20. Water supply path; 2. Steam hood; 201. Evaporation chamber; 203. Steam outlet; 204. Water supply chamber; 205. Water inlet; 206. Water supply port; 21. Outer cover; 211. Main body; 212. Narrowing part; 22. Waterproofing part; 2201. Return water chamber; 30. Water supply structure; 3. Water tank; 301. Water supply port; 31. Tank body; 32. Second insertion part; 4. Heating assembly; 401. Heating surface; 5. One-way valve.

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0028] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0029] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] In daily life, garment processing equipment (such as garment steamers, steam care machines, and steam irons) are widely used to iron clothes to remove wrinkles and improve their smoothness and appearance. Among these, garment steamers, for example, are favored by many users due to their ease of operation and excellent ironing results.

[0033] Garment steamers typically consist of a steam generator, a water tank, and an ironing head. During operation, the water tank continuously supplies water to the evaporation chamber of the steam generator. The evaporation chamber is equipped with a heating element, which heats the water inside to a boiling state, thereby generating high-temperature and high-pressure steam. The generated steam is then transported to the ironing head through pipes, and finally applied to the surface of the clothing by the ironing head, utilizing the high temperature and humidity of the steam to iron the garment.

[0034] However, in actual use, high-pressure steam is continuously generated in the evaporation chamber of the steam generator. This high-pressure steam can easily interfere with the water supply process from the water supply tank to the evaporation chamber. Specifically, the high pressure in the evaporation chamber causes some unheated water to flow back into the water supply tank under pressure, thus hindering the normal water supply and causing a delay in the water supply from the water supply tank to the evaporation chamber. The instability of the water supply directly affects the continuity and stability of steam generation by the steam generator.

[0035] In response to this, this application provides a garment processing device to solve the problem of unstable steam output from the evaporation chamber in existing garment processing devices. The garment processing device of this application will be described in detail below using a garment steamer as an example.

[0036] Please see Figures 1 to 5 The garment processing equipment in this embodiment includes a steam generator and an ironing head.

[0037] The steam generator 100 is used to generate high-temperature steam. The steam generator 100 includes a housing 10, a heating component 4, a water supply path 20, and a water supply structure 30. This application ensures the stability of water supply to the evaporation chamber 201 by utilizing the unidirectional conduction characteristic of the water supply path 20.

[0038] Specifically, the housing 10 is provided with an evaporation chamber 201 and a steam outlet 203. The steam outlet 203 is connected to the evaporation chamber 201 and is used to discharge the steam generated by heating. The heating component 4 is installed in the housing 10 and generates steam by heating the liquid (usually water) in the evaporation chamber 201 to vaporize it. The water supply path 20 serves as a channel connecting the water supply structure 30 and the evaporation chamber 201. It is provided with a water inlet 205 connected to the water supply structure 30 and a water supply outlet 206 connected to the evaporation chamber 201. The water supply structure 30 can be a water tank or trough or other water storage device, used to supply liquid to the water supply path 20.

[0039] In this embodiment, the water replenishment flow path 20 achieves unidirectional flow in the liquid flow direction from the inlet 205 to the replenishment outlet 206. This can be achieved in various ways: for example, a one-way valve 5 (such as a silicone one-way valve, utilizing the elastic deformation properties of silicone, opens when pressurized in the forward direction and closes tightly when pressurized in the reverse direction) can be installed in the water replenishment flow path 20. Alternatively, a structural design can be used to make the inlet 205 and the replenishment outlet 206 conical in the direction of water flow (the diameter gradually decreases; utilizing fluid dynamics principles, resistance is low during forward flow, and the pressure difference makes it difficult to pass through during reverse flow). The water replenishment flow path 20 can be a pipe type (such as high-temperature resistant plastic or metal pipes) or a cavity type (such as a one-piece molded cavity in the shell 10, which can temporarily store a certain amount of liquid).

[0040] When the heating element 4 is working, the water in the evaporation chamber 201 is heated and boils to generate steam, and the pressure in the evaporation chamber 201 gradually increases. If the water supply path 20 does not have unidirectional flow capability, the high pressure in the evaporation chamber 201 may force water back into the water supply path 20 or even the water supply structure 30, causing water supply interruption, which in turn causes intermittent steam output and affects the ironing effect. The unidirectional water supply path 20 can avoid this reverse pressure transmission. The liquid in the water supply structure 30 can flow from the inlet 205 to the water supply inlet 206 and enter the evaporation chamber 201 under its own gravity or external pressure. When the pressure in the evaporation chamber 201 increases, the unidirectional structure will automatically close the reverse channel to prevent water from being forced back and ensure a continuous and stable water supply.

[0041] The water supply path 20 continuously replenishes an appropriate amount of water to the evaporation chamber 201, keeping the liquid level in the evaporation chamber 201 stable. This allows the steam sprayed from the ironing head to act evenly on the clothes, avoiding local overheating or incomplete wrinkle removal caused by unstable steam. At the same time, it reduces the risk of the heating element 4 burning out due to water supply interruption, thus extending the service life of the device.

[0042] In the existing technology, room temperature water is generally used for water supply. When room temperature water flows into the evaporation chamber 201, it needs to absorb a lot of heat to generate steam. This makes it difficult for the evaporation chamber 201 to convert the newly added room temperature water into steam in a short time, resulting in intermittent steam generation and disrupting the stability of steam output.

[0043] Therefore, in some embodiments of this application, the liquid in the water supply path 20 is preheated before entering the evaporation chamber 201 through the water inlet 206. This ensures that the water entering the evaporation chamber 201 already has a high temperature, allowing it to quickly vaporize and generate steam without absorbing a large amount of heat. This significantly improves the continuity and stability of steam output, especially when continuously ironing thick clothing, avoiding uneven ironing results caused by steam interruptions.

[0044] The heating of the liquid in the water supply path 20 of this embodiment can be achieved in the following ways. In one way, the heating component 4 simultaneously heats the liquid in the evaporation chamber 201 and the liquid in the water supply path 20. For example, a portion of the pipe or cavity of the water supply path 20 is placed close to the heating surface 401 of the heating component 4, or the heating surface 401 of the heating component 4 is located within a portion of the pipe or cavity of the water supply path 20, thereby indirectly or directly heating the liquid in the water supply path 20 through heat conduction. Preheating can be achieved without additional heating devices, reducing costs and installation space. In another way, the steam generator 100 also includes a heating structure (such as a small heating wire or PTC heating element). The heating structure is independently used to heat the liquid in the water supply path 20, which can stably control the water supply temperature and is not affected by the heating environment of the evaporation chamber 201.

[0045] In some embodiments, the steam generator 100 further includes a drive unit for driving the liquid in the water replenishment path 20 to flow unidirectionally in the liquid flow direction from the inlet 205 to the replenishment outlet 206. Exemplarily, the drive unit can be a micro-pump (such as a diaphragm pump) or a solenoid valve. When the garment steamer detects that the pressure or liquid level in the evaporation chamber 201 is below a threshold, it controls the drive unit to start, pumping the liquid in the water supply structure 30 into the water replenishment path 20 and delivering it to the evaporation chamber 201. This active driving method provides more stable water replenishment. Compared to passive unidirectional flow, the drive unit enhances the water replenishment stability of the water replenishment path 20, further reducing the risk of steam output interruption.

[0046] In some embodiments, the housing 10 includes a base assembly 1 and a steam hood 2, and the steam generator 100 further includes a water tank 3.

[0047] The base assembly 1 serves as a support structure for the steam generator 100, and is used to mount the steam hood 2, water tank 3, and heating assembly 4. Wiring channels can be pre-installed inside the base assembly 1 for connecting the heating assembly 4 to a power source.

[0048] The steam hood 2 is connected to the base assembly 1 and cooperates with the base assembly 1 to form an evaporation chamber 201, which is a chamber for steam generation. The steam hood 2 can be made of food-grade high-temperature resistant plastic or metal, and its inner side is smooth or streamlined to reduce steam flow resistance. The steam hood 2 has a steam outlet 203, which is connected to the ironing head through a pipe to deliver the generated steam to the ironing head.

[0049] The water supply path 20 is at least partially disposed on the steam hood 2, for example, a portion of the pipe or cavity of the water supply path 20 is formed in the steam hood 2. Exemplarily, the steam hood 2 has a water supply cavity 204, a water inlet 205, and a water supply outlet 206. The water supply path 20 further includes the water supply cavity 204, and the water inlet 205, water supply cavity 204, and water supply outlet 206 are sequentially connected.

[0050] The volume of the water replenishment chamber 204 can be 1 / 10 to 1 / 2 of that of the evaporation chamber 201 (for example, if the volume of the evaporation chamber 201 is 1L, the volume of the water replenishment chamber 204 is 100-500mL), which can both buffer sufficient hot water and avoid occupying too much space. The top of the water replenishment chamber 204 is closed. The top-closed design allows the steam generated when the liquid in the water replenishment chamber 204 is heated to accumulate in the chamber, gradually increasing the pressure inside the chamber, thereby providing the power for subsequent water replenishment to the evaporation chamber 201.

[0051] The inlet 205 connects the water tank 3 and the water replenishment chamber 204 to replenish the water replenishment chamber 204; the water replenishment port 206 connects the water replenishment chamber 204 and the evaporation chamber 201, so that when the liquid level in the evaporation chamber 201 drops, the hot water in the water replenishment chamber 204 can flow into the evaporation chamber 201 through the water replenishment port 206.

[0052] Water tank 3, a water storage device, is installed on base assembly 1 and supplies water to water replenishment chamber 204 through inlet 205. Water supply to water tank 3 can be achieved by gravity flow or with the assistance of a micro water pump, ensuring timely replenishment when the liquid level in evaporation chamber 201 or water replenishment chamber 204 drops. For example, when the pressure in water replenishment chamber 204 drops, water tank 3 can supply water to water replenishment chamber 204 through inlet 205.

[0053] The heating component 4 is mounted on the base assembly 1 and is at least partially located within the evaporation chamber 201 and the water replenishment chamber 204. Exemplarily, the heating component 4 has a heating surface 401, which is at least partially located at the bottom of the evaporation chamber 201 and the water replenishment chamber 204. The heating component 4 may employ an electric heating tube, a heating plate, or thick-film heating technology to rapidly heat the water in the evaporation chamber 201 and the water replenishment chamber 204 to boiling.

[0054] In this embodiment, when the steam generator 100 is running, the heating component 4 is energized and heated, simultaneously heating the liquids in the evaporation chamber 201 and the water replenishment chamber 204. The water replenishment chamber 204, being a top-closed chamber, first sees the liquid boil to generate steam, which accumulates at the top, gradually increasing the pressure inside. When the liquid level in the evaporation chamber 201 drops due to steam output, the high pressure in the water replenishment chamber 204 forces the hot water inside into the evaporation chamber 201 through the water inlet 206. Since this water is high-temperature hot water, it can be quickly vaporized by the heating component 4 without absorbing a large amount of heat, avoiding intermittent steam flow.

[0055] When the liquid level in the water supply chamber 204 drops to a critical point (e.g., 1 / 3 of the initial liquid level), the pressure inside the chamber decreases as the water volume decreases. At this time, the water tank 3 supplies water to the water supply chamber 204 through the water inlet 205. Meanwhile, the evaporation chamber 201 maintains a stable steam output by using the hot water supplied by the water supply chamber 204. In this embodiment, hot water is replenished through the water replenishment chamber 204, enabling the evaporation chamber 201 to continuously and rapidly vaporize the liquid within during operation, significantly improving the continuity and stability of steam output. Simultaneously, the pressure regulation process of the water replenishment chamber 204 requires no additional sensors, simplifying the equipment structure and reducing costs. The ironing head is connected to the steam outlet 203 to evenly spray high-temperature steam onto the surface of the clothing. Due to the stable steam output, the clothing receives more even steam action, improving the ironing effect.

[0056] In some embodiments, such as Figure 3As shown, the bottom of the water replenishment chamber 204 has two specific structural forms. In the first structural form, the bottom of the water replenishment chamber 204 is open, and the edge of the open directly abuts against the heating surface 401 of the heating component 4. In this way, the heat generated by the heating component 4 can be directly transferred to the liquid in the water replenishment chamber 204, resulting in high heat transfer efficiency, rapid heating of the liquid to a boiling state, shortening the steam generation time, and enabling a faster increase in the pressure of the water replenishment chamber 204.

[0057] In the second structural configuration, the bottom wall of the water replenishment chamber 204 is a heat-conducting plate, which abuts against the heating surface 401 of the heating component 4. The heat-conducting plate can be a copper plate, aluminum plate, etc., and the heat from the heating component 4 is indirectly transferred to the liquid in the water replenishment chamber 204 through the heat-conducting plate. The heat-conducting plate prevents the liquid from directly contacting the heating surface 401, reducing the possibility of scaling on the heating surface 401 and enhancing safety.

[0058] In some embodiments, such as Figure 3 and Figure 4 As shown, the steam hood 2 includes an outer cover 21 and a water-proof section 22 connected to each other. The outer cover 21 is supported by the base assembly 1, thus providing support and stability for the steam hood 2. A steam outlet 203 is provided on the top of the outer cover 21. The outer cover 21 is arranged around the periphery of the water-proof section 22, and its inner wall, the outer peripheral wall of the water-proof section 22, and the base assembly 1 together form an annular evaporation chamber 201. The annular structure of the chamber makes the heating area of ​​the evaporation chamber 201 more uniformly distributed, and the heat generated by the heating component 4 can be quickly transferred to all areas within the annular space, accelerating the boiling of water. At the same time, the steam flow rate within the annular space is faster, reducing steam retention within the chamber and increasing the speed at which steam is discharged from the steam outlet 203, thereby improving steam generation efficiency, meeting ironing needs more quickly, and shortening waiting time.

[0059] In some embodiments, the water supply cavity 204 may be disposed on the inner side or outer periphery of the outer cover 21. When the water supply cavity 204 is disposed on the inner side of the outer cover 21, the distance between the water supply cavity 204 and the heating component 4 is closer, the heating efficiency within the water supply cavity 204 is higher, and the boiling time of the liquid in the water supply cavity 204 is shortened. In addition, the arrangement of the water supply cavity 204 on the inner side of the outer cover 21 can also make the overall structure of the steam cover 2 more compact and reduce the size of the equipment.

[0060] When the water replenishment chamber 204 is located on the outer periphery of the outer cover 21, its heat dissipation area is larger, which can reduce the surface temperature of the outer cover 21, causing the steam inside the water replenishment chamber 204 to liquefy, reducing pressure, and making the water replenishment to the water tank 3 smoother. At the same time, the layout of the water replenishment chamber 204 on the outer periphery of the outer cover 21 facilitates the maintenance and cleaning of the water replenishment chamber 204 and extends its service life. For example, users can directly disassemble the outer periphery of the water replenishment chamber 204 for scale removal, which is simple and quick.

[0061] In some embodiments, the steam hood 2 further includes a surrounding panel that forms a water replenishment cavity 204 by cooperating with the inner or outer sidewall of the outer hood 21.

[0062] In one of the settings, such as Figure 4 As shown, the enclosure is connected to the inner wall of the outer cover 21 and cooperates with the inner wall of the outer cover 21 to form a water replenishment cavity 204. The connection method can be detachable or integrally formed. The water inlet 205 is located on the outer cover 21, and the water replenishment port 206 is located on the enclosure. Water enters the water replenishment cavity 204 through the water inlet 205 of the outer cover 21, making the water replenishment path more direct. Moreover, the water replenishment port 206 is close to the heating surface 401 of the heating component 4, allowing hot water to quickly flow to the evaporation cavity 201 and be vaporized, further improving the steam generation efficiency.

[0063] In another configuration, the enclosure panel is connected to the outer wall of the outer cover 21 and mates with the outer wall to form a water supply cavity 204. The connection can be detachable or integrally formed. The water inlet 205 is located on the enclosure panel, and the water supply inlet 206 is located on the outer cover 21. In this configuration, the water supply cavity 204 is independent of the outer side of the outer cover 21, facilitating maintenance and cleaning and extending its service life. For example, users can directly remove the outer enclosure panel for scale removal, a simple and quick operation.

[0064] In some embodiments, such as Figure 4 As shown, one-way valves 5 are installed at the inlet 205 and the outlet 206 to control the direction of water flow. The one-way valve 5 can be a one-way silicone valve, a ball valve, a solenoid valve, etc. When the pressure inside the outlet 204 is lower than the supply pressure, the one-way valve 5 at the inlet 205 opens, allowing water from the water tank 3 to flow into the outlet 204. When the pressure inside the outlet 204 rises and exceeds the pressure in the evaporation chamber 201, the one-way valve 5 at the outlet 206 opens, allowing hot water to flow into the evaporation chamber 201. The one-way valve 5 ensures orderly water flow and avoids pressure fluctuations caused by backflow of steam or hot water. For example, during the process of supplying water from the outlet 204 to the evaporation chamber 201, if the pressure in the evaporation chamber 201 rises instantaneously, the one-way valve 5 at the outlet 206 prevents hot water from flowing back into the outlet 204, ensuring that the pressure in the outlet 204 continuously pushes hot water into the evaporation chamber 201, thus guaranteeing continuous steam output. Meanwhile, the one-way valve 5 also prevents the hot water in the water supply chamber 204 from flowing back to the water tank 3 after the equipment stops working, ensuring the orderly flow of water.

[0065] In some embodiments, such as Figure 4As shown, at least two water supply channels 20 are provided, meaning there are at least two water supply chambers 204, such as 2, 3, or 4. These multiple water supply chambers 204 are spaced apart around the periphery of the water-blocking section 22. The arrangement of multiple water supply chambers 204 ensures more uniform water supply. When the liquid level in the evaporation chamber 201 drops due to steam output, the multiple spaced-apart water supply chambers 204 simultaneously replenish hot water to the evaporation chamber 201 through their respective water supply inlets 206. Because the water supply inlets 206 are evenly distributed along the periphery of the water-blocking section 22, hot water can flow into the evaporation chamber 201 from multiple locations, avoiding sudden increases in local water temperature or excessive water flow impact caused by a single water supply inlet 206. For example, four water replenishment chambers 204 spaced 90° apart can form a ring-shaped water flow in the evaporation chamber 201, which, in conjunction with the ring-shaped heating surface 401 of the heating component 4, allows the heat to be applied more evenly to the replenished hot water, and the steam generation rate is increased simultaneously, reducing the steam pressure fluctuations caused by uneven local water volume.

[0066] In some implementations, the base assembly 1 has a water supply tank 102, which serves as a water storage structure between the water tank 3 and the evaporation chamber 201, for receiving water from the water tank 3 and supplying water to the inlet 205 of the steam hood 2. The steam hood 2 is installed inside the water supply tank 102, and when the steam generator 100 is running, at least a portion of the water replenishment chamber 204 is immersed in the water in the water supply tank 102.

[0067] When the garment steamer is working, the heating element 4 continuously heats the liquid in the evaporation chamber 201 and the water replenishment chamber 204. The water in the water replenishment chamber 204 boils, generating steam, which increases the pressure inside the chamber and pushes hot water into the evaporation chamber 201 through the water inlet 206. As the water volume in the water replenishment chamber 204 decreases, the liquid level drops, and the contact area between the steam and the chamber wall increases. Because the chamber wall is cooled by the room-temperature water in the water supply tank 102, the steam quickly liquefies into small water droplets on the chamber wall, resulting in a decrease in the amount of steam inside the chamber and a gradual decrease in pressure. When the pressure in the water replenishment chamber 204 drops below the pressure in the water supply tank 102, the water in the water supply tank 102 flows smoothly into the water replenishment chamber 204 through the water inlet 205 under the action of the pressure difference, making the water replenishment smoother.

[0068] In some embodiments, such as Figure 2 As shown, the bottom end face of the water-insulating part 22 is higher than the bottom end face of the outer cover 21 and is spaced apart from the heating component 4. This spaced design between the bottom end face of the water-insulating part 22 and the heating component 4 creates a thin water layer. The smaller the distance, the thinner the water layer, allowing the heat from the heating component 4 to be transferred more directly and quickly to the water layer, enabling the water to reach boiling point faster and shortening the steam generation time. Simultaneously, the thinner water layer provides more even heating, avoiding unstable steam generation caused by excessive local temperature differences, ensuring continuous and stable steam output, and improving ironing efficiency.

[0069] Furthermore, in some embodiments, the bottom end face of the water-proof portion 22 is planar, and the heating surface 401 of the heating component 4 is opposite to and parallel to the bottom surface of the water-proof portion 22. The planar bottom end face increases the contact area with water, and together with the parallel heating surface 401, the heat generated by the heating component 4 can be evenly applied to the water layer below the water-proof portion 22. Compared with non-parallel or non-planar structures, this reduces the possibility of heat concentration or uneven heat distribution, avoids intermittent steam caused by local overheating or insufficient heating, thereby ensuring stable steam output from the ironing head and improving the smoothness of ironing clothes.

[0070] In some embodiments, a return water chamber 2201 is formed in the middle of the water-insulating part 22, with its top open and communicating with the evaporation chamber 201. A return water outlet is provided on the wall to connect to the evaporation chamber 201. When the garment steamer is working, a large amount of steam generated in the evaporation chamber 201 flows upward. Some of the steam encounters the relatively cooler chamber wall (such as the area near the steam outlet 203) during its ascent, and liquefies into small water droplets. These water droplets flow back to the return water chamber 2201 along the inner wall of the return water chamber 2201, and then replenish the evaporation chamber 201 through the return water outlet. The return water outlet can be located on the periphery or bottom of the water-insulating part 22. A periphery return water outlet facilitates timely return of water droplets during flow, while a bottom return water outlet allows gravity to facilitate smoother flow of water droplets into the evaporation chamber 201. This achieves the recycling of steam-liquefied water, and the replenished liquid water is at a higher temperature, allowing for rapid re-vaporization after entering the evaporation chamber 201, avoiding steam output fluctuations caused by water replenishment and enhancing steam stability.

[0071] Furthermore, in some embodiments, the downward projection of the return water inlet at least partially falls on the heating surface 401 of the heating assembly 4. When the liquefied water droplets flow from the return water inlet into the evaporation chamber 201, some of the droplets can directly fall onto the heating surface 401 and be rapidly heated to a boiling state, converting into steam. In this way, the heating path of the returning water droplets is shortened, the heating time is reduced, and the stability of steam output is further improved.

[0072] In some embodiments, such as Figure 3 As shown, the outer cover 21 includes a main body 211 and a narrowing section 212 connected sequentially along the steam flow direction. A water inlet 205 is located in the main body 211, and a steam outlet 203 is located at the top of the narrowing section 212. The main body 211 has a relatively large space, providing sufficient room for heating and boiling the water. The narrowing section 212 gradually narrows along the steam flow direction. According to fluid mechanics principles, when steam flows within the narrowing section 212, the flow velocity increases, and the pressure increases accordingly, allowing the steam to be ejected more forcefully from the steam outlet 203. The high-pressure, high-speed steam can more effectively penetrate clothing fibers, enhancing the wrinkle-removing effect. Simultaneously, the design of the narrowing section 212 reduces energy loss during steam flow, allowing more heat to be applied to the clothing, improving ironing efficiency.

[0073] In some embodiments, such as Figure 2 and Figure 5 As shown, the base assembly 1 has an installation cavity 101, and a water supply tank 102 at the bottom of the installation cavity 101. The installation cavity 101 serves as the installation space for the water tank 3, and the water supply tank 102 at the bottom of the installation cavity 101 acts as a transfer water supply. The water tank 3 has a water inlet 301. After the water tank 3 is installed in the installation cavity 101, its water inlet 301 corresponds to the water supply tank 102. The room temperature water in the water tank 3 first flows into the water supply tank 102, and then enters the evaporation chamber 201 through the water replenishment chamber 204, forming a multi-stage water supply structure of "water tank 3 - water supply tank 102 - water replenishment chamber 204 - evaporation chamber 201". Among them, the water supply tank 102 has a buffering function: the water supply tank 102 can first store a certain amount of water, allowing the room temperature water flowing into the water tank 3 to be temporarily stored in the water supply tank 102. The water in the water supply tank 102 is heated by the surrounding environment (such as the heat conducted by the evaporation chamber 201) before entering the evaporation chamber 201. This reduces the temperature difference between the steam and the high-temperature environment inside the evaporation chamber 201, avoids steam interruption caused by direct injection of cold water into the evaporation chamber 201, and improves the stability of steam output.

[0074] Furthermore, in some embodiments, the water inlet 205 is located on the steam hood 2 and between the bottom surface of the water supply tank 102 and the heating surface 401 of the heating component 4, with the heating surface 401 of the heating component 4 being lower than the bottom surface of the water supply tank 102, creating a height difference H between them. Thus, gravitational potential energy is converted into water supply pressure; the greater the height difference, the stronger the water supply pressure. When high pressure is generated in the evaporation chamber 201 due to steam generation, the height difference between the water supply tank 102 and the heating surface 401 provides sufficient pressure to counteract the interference of the high pressure in the evaporation chamber 201 on the water supply and increase the water supply pressure, ensuring a continuous and stable flow of water from the water supply tank 102 into the evaporation chamber 201, avoiding insufficient steam output due to water supply interruption. This design of the sunken heating surface 401 eliminates the need for additional pressurization devices; pressure regulation can be achieved solely through structural design, simplifying the device structure and reducing costs.

[0075] Furthermore, in some embodiments, the distance H between the heating surface 401 and the bottom surface of the water supply tank 102 satisfies 10mm ≤ H ≤ 30mm. When H is 10mm, it can provide basic water supply pressure to meet the water supply needs of a small garment steamer, and will not increase the overall thickness of the device due to excessive height difference; when H is 30mm, it is suitable for high-power garment steamers and can maintain stable water supply under high pressure in the evaporation chamber 201. If H is less than 10mm, the water supply pressure may be insufficient, making it difficult to overcome the high pressure in the evaporation chamber 201, and water supply delay may easily occur; if H is greater than 30mm, although it can increase the water supply pressure, it will increase the height of the base assembly 1, making the device larger and affecting portability.

[0076] Please continue reading. Figure 2 and Figure 5 In some embodiments, the wall of the water supply tank 102 is recessed downwards to form a mounting groove 103, within which the heating component 4 is installed. This brings the heating component 4 closer to the water in the water supply tank 102, shortening the heat transfer path and improving heating efficiency. Simultaneously, the mounting groove 103 also positions and protects the heating component 4, preventing it from moving or being damaged by external impacts during operation. Furthermore, the recessed structure of the mounting groove 103 increases the effective volume of the water supply tank 102, allowing more water to be stored near the heating component 4, further optimizing the heating effect.

[0077] In some embodiments, the base assembly 1 includes a base body 11 and an annular bracket 13. The base body 11 has a water supply tank 102, and the annular bracket 13 is installed in a mounting groove 103 formed by the downward indentation of the tank wall of the water supply tank 102. The heating assembly 4 is installed on the annular bracket 13 and is sealed to the annular bracket 13 by a sealing element 14. On the one hand, the annular bracket 13 provides stable support for the heating assembly 4, enabling the annular bracket 13 to work stably under high temperature and high pressure environments; on the other hand, the use of the sealing element 14 effectively prevents water and steam from leaking from the connection between the heating assembly 4 and the annular bracket 13, improving the safety and reliability of the equipment. The sealing element 14 can be a high-temperature resistant silicone sealing ring. Furthermore, the design of the annular bracket 13 facilitates the installation and wiring of the heating assembly 4; maintenance personnel only need to operate on the side of the annular bracket 13 away from the evaporation chamber 201, reducing the difficulty of equipment maintenance.

[0078] Furthermore, in some embodiments, the annular support 13 has an annular limiting groove that mates with the steam hood 2, with the steam hood 2 supported on the groove wall. This limiting structure design ensures accurate alignment and tight fit between the steam hood 2 and the annular support 13, preventing the steam hood 2 from shaking or shifting during operation, thereby guaranteeing the stability and reliability of the steam generator 100. Simultaneously, the annular limiting groove also provides a certain degree of sealing for the steam hood 2, reducing the possibility of steam leakage from the connection between the steam hood 2 and the annular support 13.

[0079] Please see Figure 1 and Figure 2In some embodiments, the base assembly 1 further includes a first insertion part 12, and the water tank 3 includes a tank body 31 and a second insertion part 32. The base body 11 and the water tank 3 are quickly connected via the first insertion part 12 and the second insertion part 32. The first insertion part 12 has a built-in water outlet channel, and the second insertion part 32 of the water tank 3 has a water supply port 301. After the two are inserted, a continuous water supply path is formed. This design allows the installation and removal of the water tank 3 to be carried out by only axial insertion and removal operations, without the need for additional tools or complicated steps. The sealing of the insertion structure can be achieved by an O-ring seal. When inserted into place, the seal is compressed to form a radial seal, ensuring the sealing of the water supply process. In addition, the interface between the first insertion part 12 and the second insertion part 32 can adopt a foolproof design (such as an asymmetrical shape) to avoid damage caused by misinsertion and improve ease of use.

[0080] Furthermore, in some embodiments, the base assembly 1 further includes a cover 15, which covers the opening of the mounting cavity 101, with the steam hood 2 extending through and partially protruding from the cover 15. The cover 15 not only protects the water tank 3 and piping within the mounting cavity 101 but also provides a stable support structure for the steam hood 2. The connection between the steam hood 2 and the cover 15 employs a sealed design (such as a silicone sealing ring) to prevent heat leakage from gaps, thus improving heat utilization. Simultaneously, the presence of the cover 15 reduces the possibility of external dust and moisture entering the mounting cavity 101, extending the service life of internal components. The portion of the steam hood 2 extending out of the mounting cavity 101 facilitates connection to the ironing head, shortening the steam transmission path and reducing heat loss.

[0081] Furthermore, in some embodiments, the cover 15 only covers a portion of the opening of the mounting cavity 101, with the water tank 3 installed through the other part of the opening. This design allows the water tank 3 to be installed and removed independently of the cover 15, without first removing the cover 15, further simplifying the installation and removal process of the water tank 3. For example, when water needs to be added, the user can directly remove the water tank 3 from the opening without having to disassemble the entire cover 15. At the same time, the partial coverage of the mounting cavity 101 by the cover 15 still protects critical internal components (such as the steam hood 2 and the heating assembly 4).

[0082] This application further proposes a cooking appliance, which can be an electric steamer, a steam oven, a steam stew pot, etc. Taking an electric steamer as an example, the cooking appliance includes a base, a steam generating device 100 as described in the above embodiments, and a pot.

[0083] The base is the supporting structure of the cooking appliance, providing an installation platform for the steam generator 100 and the pot. The base contains components such as control circuits and power interfaces, used to regulate the operating status of the steam generator 100 (such as heating power and working time).

[0084] The steam generator 100 is installed on the base, and the high-temperature and high-pressure steam generated by its evaporation chamber 201 is delivered to the cookware through the steam outlet 203. The cookware is installed on the base, and the food is placed inside the cookware. When the high-temperature steam enters the cookware, it will flow around the food and release heat, thereby realizing the cooking functions such as steaming, heating or keeping the food warm.

[0085] The cooking appliance in this embodiment utilizes the stable operation of the steam generator to achieve efficient and consistent cooking results.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steam generating device, characterized by, The steam generating device comprises: a shell provided with an evaporation cavity, the shell being further provided with a steam outlet in communication with the evaporation cavity, the steam outlet being used for discharging steam in the evaporation cavity; a heating assembly arranged in the shell and capable of heating liquid in the evaporation cavity to generate steam; a water replenishment flow path comprising a water inlet and a water replenishment opening in communication with the evaporation cavity; and a water supply structure for replenishing liquid to the water replenishment flow path through the water inlet. The water replenishment flow path is further configured to be unidirectionally conductive in the liquid flow direction from the water inlet to the water replenishment opening. The liquid in the water replenishment flow path is further heated before entering the evaporation cavity through the water replenishment opening.

2. The steam generating device of claim 1, wherein The heating assembly is capable of heating the liquid in the evaporation cavity and the liquid in the water replenishment flow path at the same time.

3. The steam generating device of claim 2, wherein Alternatively, the steam generating device further comprises a heating structure for heating the liquid in the water replenishment flow path. The steam generating device further comprises a driving member for driving the liquid in the water replenishment flow path to be unidirectionally conducted in the liquid flow direction from the water inlet to the water replenishment opening.

4. The steam generating device of claim 1, wherein The shell comprises a base assembly and a steam cover connected to the base assembly and cooperating with the base assembly to form the evaporation cavity, the steam cover being provided with the steam outlet, and the water replenishment flow path being at least partially arranged on the steam cover.

5. The steam generating device according to any one of claims 1 to 4, wherein The steam cover has a top-closed water replenishment cavity, the water inlet in communication with the water replenishment cavity, and the water replenishment opening in communication with the water replenishment cavity and the evaporation cavity respectively, the water replenishment flow path further comprising the water replenishment cavity, the water inlet, the water replenishment cavity and the water replenishment opening being sequentially communicated.

6. The steam generating device of claim 5, wherein The bottom of the water replenishment cavity is open and abuts against the heating surface of the heating assembly; or the bottom wall of the water replenishment cavity is a heat-conducting plate abutting against the heating surface of the heating assembly.

7. The steam generating device of claim 6, wherein The steam cover comprises a connected outer cover and a water-separation part, the outer cover being supported on the base assembly and being provided with the steam outlet; 8. The steam generating device of claim 6, wherein, The outer cover is annularly arranged on the circumferential side of the water-separation part and cooperates with the outer circumferential wall of the water-separation part and the base assembly to form the evaporation cavity. The steam cover further comprises a surrounding plate; 9. The steam generating device of claim 6, wherein, The surrounding plate is connected to the inner side wall of the outer cover and cooperates with the inner side wall to form the water replenishment cavity, the water inlet being arranged on the outer cover and the water replenishment opening being arranged on the surrounding plate; Alternatively, the surrounding plate is connected to the outer side wall of the outer cover and cooperates with the outer side wall to form the water replenishment cavity, the water inlet being arranged on the surrounding plate and the water replenishment opening being arranged on the outer cover. The water replenishment flow path is provided with at least two water replenishment flow paths, the water replenishment cavities in the at least two water replenishment flow paths being arranged along the circumference of the steam cover.

10. The steam generating device of claim 6, wherein, The water supply structure comprises a water tank, the base assembly is provided with a water supply groove, the steam cover is arranged in the water supply groove, the water inlet is in communication with the water supply groove, and the water tank is used for supplying water to the water supply groove.

11. The steam generating device of claim 6, wherein, At least part of the water replenishment cavity is immersed in the liquid in the water supply groove when the steam generating device is operated.

12. The steam generating device of claim 11, wherein, Unidirectional valves are arranged at the water inlet and the water replenishment opening.

13. The steam generating device according to any one of claims 1 to 4, 6 to 12, wherein The base assembly further comprises:

14. The steam generating device of claim 13, wherein, a first plug-in part connected to the base body and having a water outlet channel; the water tank comprises: ​ a box body; and a second plug-in part connected with the box body, the first plug-in part having the water supply port; wherein the second plug-in part is connected with the first plug-in part in a plug-in and sealing manner, and the water supply port communicates with the water supply groove via the water outlet channel. 15.A laundry treating apparatus, characterized by, comprising: the steam generating device of any one of claims 1 to 14, and an iron head communicating with the steam outlet of the evaporation cavity.

16. A cooking appliance characterized by, comprising: a base; the steam generating device of any one of claims 1 to 14, installed on the base; and a pot installed on the base, the steam outlet providing steam into the pot.

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