Steam heating device and cooking equipment
By setting the water pump's inlet and outlet opposite to the instantaneous steam generator in the steam heating device, and combining this with insulation and side plates to collect splashed water, the electrical safety hazards caused by water pump splashing are solved, and the overall safety and temperature control accuracy are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-17
AI Technical Summary
In existing instantaneous steam heating devices, the water pump can easily splash water onto the instantaneous steam generator and other electrical components, posing an electrical safety hazard.
The steam heating device is designed so that the water pump's inlet and outlet are both facing away from the instantaneous steam generator, and a heat insulation component is installed between the mounting plate and the water pump. The side plate collects splashed water and discharges it through a water collection tank or drainage tank, preventing water from splashing directly onto the steam generator.
It reduces electrical safety hazards, improves the overall electrical safety of the machine, prevents water pump from malfunctioning or being damaged due to high temperature, and enhances temperature control accuracy and cooking performance.
Smart Images

Figure CN224135842U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of household appliance technology, and in particular to a steam heating device and cooking equipment. Background Technology
[0002] Currently, most cooking appliances sold on the market, such as steam ovens and steam boxes, are equipped with steam heating devices. Compared to other steam heating devices, instant steam heating devices are devices that instantly heat water to quickly generate steam, and are characterized by high efficiency, portability, and immediate usability.
[0003] Typically, an instantaneous steam heating device includes a clean water tank, an instantaneous steam generator, and a water pump. The water pump draws water from the clean water tank to the instantaneous steam generator, thus producing steam. However, the water pump can easily splash water onto the instantaneous steam generator and other electrical components, posing an electrical safety hazard to the entire unit. Utility Model Content
[0004] Therefore, it is necessary to provide a steam heating device and cooking equipment to address the electrical safety hazards caused by water splashing when the water pump is drawing water in existing instant steam heating devices.
[0005] This application provides a steam heating device, comprising:
[0006] The body has a mounting plate;
[0007] A water pump, installed on one side of the mounting plate, has an inlet and an outlet;
[0008] An instantaneous steam generator is installed on the same side of the mounting plate as the water pump, and the instantaneous steam generator is connected to the water outlet.
[0009] Both the inlet and outlet are positioned away from the instantaneous steam generator.
[0010] In one embodiment, the body also includes a side plate connected to one side of the mounting plate, the water pump is adjacent to the side plate, and the water inlet and outlet are arranged facing the side plate.
[0011] In one embodiment, the body further includes a base plate connected to the bottom of the side plate, and the base plate is provided with at least one of a water collection tank, a drainage tank, or a drainage hole.
[0012] In one embodiment, the steam heating device further includes an inner liner, which is disposed inside the machine body and located on the side of the mounting plate facing away from the water pump.
[0013] A heat insulation component is provided between the inner tank and the mounting plate, or between the mounting plate and the water pump.
[0014] In one embodiment, the insulation element includes a sponge pad disposed between the inner liner and the mounting plate or between the mounting plate and the water pump.
[0015] In one embodiment, the steam heating device further includes a pump sleeve and a non-fully threaded screw, the pump sleeve being fitted around the outer periphery of the pump and fixed to the mounting plate by the non-fully threaded screw.
[0016] In one embodiment, the end of the water pump facing away from the inlet and outlet is the tail end, which is fixed to the mounting plate by a fastener.
[0017] In one embodiment, the fastener includes a cable tie, with the tail end secured to the mounting plate by the cable tie.
[0018] In one embodiment, the mounting plate is provided with at least two positioning ear clips, all of which are spaced apart from each other, and the instantaneous steam generator cooperates with at least two positioning ear clips to be positioned on the mounting plate.
[0019] In one embodiment, the steam heating device further includes an inner tank, which is disposed inside the machine body and located on the side of the mounting plate facing away from the water pump; the mounting plate also has an air inlet, which connects the instantaneous steam generator and the inner tank.
[0020] The horizontal distance between the instantaneous steam generator and the air inlet shall not exceed 110 mm, and the height difference between the instantaneous steam generator and the air inlet shall not exceed 15 mm.
[0021] In one embodiment, the horizontal distance between the water pump and the instantaneous steam generator is no greater than 160 mm, and the height difference between the water pump and the instantaneous steam generator is no greater than 60 mm.
[0022] This application also provides a cooking device, including the steam heating device in any of the above embodiments.
[0023] In one embodiment, the cooking device is a steam oven.
[0024] When the water pump is working and leaks occur at the inlet or outlet, causing water to spray outwards, the water will not directly splash onto the instantaneous steam generator because both the inlet and outlet of the water pump are positioned away from it, thus reducing electrical safety hazards. Attached Figure Description
[0025] Figure 1 This is a front view of a steam heating device according to one or more embodiments of this application.
[0026] Figure 2 for Figure 1 A partially enlarged schematic diagram of the water pump in the steam heating device shown.
[0027] Figure 3 for Figure 2 A partially enlarged schematic diagram of the instantaneous steam generator in the steam heating device shown.
[0028] Explanation of reference numerals in the attached figures:
[0029] Steam heating device 100, body 10, mounting plate 11, positioning ear buckle 111, air inlet 112, side plate 12, bottom plate 13, water pump 20, water inlet 21, water outlet 22, tail end 23, water inlet pipe 24, water outlet pipe 26, instantaneous steam generator 30, clean water tank 40, heat insulation component 45, bottom heating element 50, water pump sleeve 60, fully threaded screw 65, fastener 70, self-tapping screw 75, steam inlet pipe 80. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.
[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0036] Figure 1 This is a front view of a steam heating device in one or more embodiments of this application; Figure 2 for Figure 1 A partially enlarged schematic diagram of the water pump in the steam heating device shown. (See attached diagram.) Figure 1 and Figure 2 An embodiment of this application provides a steam heating device 100, which includes a body 10, a water pump 20, and an instantaneous steam generator 30. The steam heating device 100 of this embodiment can be applied to cooking equipment, which can be a steam oven or a steamer.
[0037] The body 10 has a mounting plate 11, and a water pump 20 is mounted on one side of the mounting plate 11. The water pump 20 has an inlet 21 and an outlet 22. The instantaneous steam generator 30 is mounted on the same side of the mounting plate 11 as the water pump 20, and the instantaneous steam generator 30 is connected to the outlet 22.
[0038] The water pump 20's inlet 21 can be connected to an external water source or the clean water tank 40 of the steam heating device 100 via an inlet pipe 24, thereby pumping water to the external water source or the clean water tank 40. The water from the pump 20 is discharged from the outlet 22 through the drain pipe 26 and then enters the instantaneous steam generator 30. The instantaneous steam generator 30 can heat the water and generate steam, which can enter the processing chamber of the steam heating device 100. In the embodiments of this application, if the steam heating device 100 is used in a steam oven or steam box, the steam generated by the instantaneous steam generator 30 can enter the inner liner, where food that needs to be steamed or baked can be placed.
[0039] In the embodiments of this application, the inlet 21 and outlet 22 of the water pump 20 are both positioned away from the instantaneous steam generator 30.
[0040] Thus, when the water pump 20 is working and water is sprayed outward due to leakage at the inlet 21 or outlet 22, the water will not directly splash onto the instantaneous steam generator 30 because both the inlet 21 and outlet 22 of the water pump 20 are set away from the instantaneous steam generator 30, thereby reducing electrical safety hazards.
[0041] In a specific embodiment of this application, the mounting plate 11 is a vertical plate, installed on the rear side of the inner liner.
[0042] Furthermore, the body 10 also includes a side plate 12, which is connected to one side of the mounting plate 11. The water pump 20 is adjacent to the side plate 12, and the water inlet 21 and the water outlet 22 are arranged facing the side plate 12.
[0043] Since the water pump 20 is adjacent to the side plate 12, and the inlet 21 and outlet 22 are set facing the side plate 12, when the inlet 21 or outlet 22 leaks and sprays water outward, it will directly spray onto the side plate 12 without affecting other electrical components.
[0044] Furthermore, the body 10 also includes a base plate 13, which is connected to the bottom of the side plate 12. The base plate 13 is provided with at least one of a water collection tank, a drainage tank, or a drainage outlet.
[0045] When the water splashed outward from the inlet 21 or outlet 22 of the water pump 20 is received by the side plate 12, the water will flow along the wall of the side plate 12 to the bottom plate 13 under the action of gravity. Since the bottom plate 13 has at least one of a water collection tank, a drainage tank, or a drain outlet, the water can be collected through the water collection tank or discharged outward through the drainage tank or drain outlet, so it will not flow onto other electrical components inside the machine body 10, thus improving the electrical safety of the whole machine.
[0046] In addition, the steam heating device 100 also includes a bottom heating tube 50 located at the bottom of the inner tank. The bottom plate 13 is located on the outside of the bottom of the inner tank. Since the water inlet 21 and water outlet 22 of the water pump 20 are set towards the side plate 12, the water splashed out from the water inlet 21 or water outlet 22 will not come into contact with the bottom heating tube 50, thus improving the electrical safety of the whole machine.
[0047] In some embodiments, the steam heating device 100 further includes an inner liner, which is disposed inside the body 10 and located on the side of the mounting plate 11 facing away from the water pump 20. A heat insulation member 45 is provided between the mounting plate 11 and the water pump 20.
[0048] The heat insulation component 45 can isolate heat. When the steam heating device 100 is working, the inner liner serves as the food processing chamber, and the temperature continues to rise. Therefore, by providing the heat insulation component 45 between the mounting plate 11 and the water pump 20, the heat transferred from the inner liner to the water pump 20 through the mounting plate 11 can be isolated, thereby preventing the water pump 20 from malfunctioning or being damaged due to high temperature.
[0049] In other embodiments, the heat insulation element 45 may also be disposed between the inner liner and the mounting plate 11. In this way, the heat transferred from the inner liner to the mounting plate 11 can be isolated, thereby preventing the water pump 20, instantaneous steam generator 30 and other devices mounted on the mounting plate 11 from malfunctioning or being damaged due to high temperature.
[0050] Specifically, the heat insulation component 45 includes a sponge pad, which is disposed between the mounting plate 11 and the water pump 20.
[0051] The sponge pad has good heat insulation properties and can also prevent moisture and shock, thus further preventing damage to the electrical components on the mounting plate 11.
[0052] In some embodiments, the steam heating device 100 further includes a water pump sleeve 60 and a non-fully threaded screw 65. The water pump sleeve 60 is fitted around the outer periphery of the water pump 20 and is fixed to the mounting plate 11 by the non-fully threaded screw 65.
[0053] The water pump sleeve 60 is usually made of silicone or other elastic material. If a fully threaded screw is used for fixing, the torque of the pneumatic screwdriver is very difficult to control, and the screw head can easily penetrate the screw hole of the water pump sleeve 60, causing fixing failure. Therefore, a non-fully threaded screw 65 is used. This screw stops after being driven into the mounting plate 11 for a certain length, thus preventing the screw head from penetrating the screw hole of the water pump sleeve 60.
[0054] In some embodiments, the end of the water pump 20 facing away from the inlet 21 and outlet 22 is the tail end 23, which is fixed to the mounting plate 11 by a fastener 70.
[0055] Normally, the tail end of the water pump 20 is not secured. Therefore, the water pump 20 may shake or fall off during transportation or drop testing. In this application, the water pump 20 is secured by the water pump sleeve 60, and the tail end of the water pump 20 is further secured by the fastener 70, making the overall fixation of the water pump 20 more stable and preventing it from shaking or falling off during transportation or drop testing.
[0056] Specifically, the fastener 70 includes a cable tie, and the tail end 23 is fixed to the mounting plate 11 by the cable tie.
[0057] The cable tie has a simple structure and can secure the entire tail end 23 of the water pump 20 to the mounting plate 11, thus making the fixation more reliable.
[0058] In actual operation, one end of the cable tie is equipped with a lock and a buckle, and the mounting plate 11 has a slot. First, the buckle of the cable tie is snapped into the slot for fixation, and then the other end of the cable tie is wrapped around the tail end 23 of the water pump 20 and inserted into the lock for fixation.
[0059] Combination Figure 3 In some embodiments, the mounting plate 11 is provided with at least two positioning ear clips 111, all of which are spaced apart from each other. The instantaneous steam generator 30 cooperates with at least two positioning ear clips 111 to be positioned on the mounting plate 11.
[0060] In conventional technology, the instantaneous steam generator 30 is positioned onto the mounting plate 11 using a clamp for fixation, which is a cumbersome process. However, this application, by providing at least two spaced positioning ear clips 111 on the mounting plate 11, allows the instantaneous steam generator 30 to be pre-positioned on the mounting plate 11 by engaging the positioning ear clips 111 before fixing it, thus enabling a faster fixation process.
[0061] Furthermore, the instantaneous steam generator 30 is fixed to the mounting plate 11 by multiple self-tapping screws 75. By using self-tapping screws 75 to fix the instantaneous steam generator 30 to the mounting plate 11, the fixing process is not only quick, but also convenient for disassembly, which facilitates the replacement of the instantaneous steam generator 30.
[0062] In some embodiments, the mounting plate 11 is also provided with an air inlet 112, which connects the instantaneous steam generator 30 and the inner tank.
[0063] When the instantaneous steam generator 30 produces steam, the steam can enter the air inlet 112 through the steam inlet pipe 80 connected to the instantaneous steam generator 30, and then enter the inner tank.
[0064] If the distance between the instantaneous steam generator 30 and the air inlet 112 is too far, the high-temperature and high-pressure steam generated in the instantaneous steam generator 30 will have to pass through an excessively long steam inlet pipe 80 before entering the inner liner. At this time, the steam temperature will decrease and condensation will increase, resulting in increased energy consumption of the product. In addition, the increased condensate from the steam will affect the taste of the food and also increase the difficulty for users to clean the inner liner.
[0065] Therefore, in the embodiments of this application, the horizontal distance between the instant steam generator 30 and the air inlet 112 is set to be no greater than 110 mm, and the height difference between the instant steam generator 30 and the air inlet 112 is set to be no greater than 15 mm. In this way, the distance between the instant steam generator 30 and the air inlet 112 can be reduced, steam condensation can be decreased, the cooked food can be improved, and the inner pot can be cleaned more easily.
[0066] In addition, if the distance between the water pump 20 and the instant steam generator 30 is too far, and there is too much water in the water inlet pipe 24, when the water pump 20 needs to start or stop, the amount of water entering the instant steam generator 30 will be difficult to control, which will affect the temperature control accuracy and cooking performance of the steam heating device 100.
[0067] Therefore, in the embodiments of this application, the horizontal distance between the water pump 20 and the instantaneous steam generator 30 is set to be no greater than 160 mm, and the height difference between the water pump 20 and the instantaneous steam generator 30 is set to be no greater than 60 mm. This reduces the distance between the water pump 20 and the instantaneous steam generator 30, and improves the temperature control accuracy and cooking performance of the steam heating device 100.
[0068] It should be noted that the height of the outlet 22 of the water pump 20 should be higher than the inlet of the instantaneous steam generator 30, so that water can enter the instantaneous steam generator 30 under the action of gravity.
[0069] This application also provides a cooking device, including the steam heating device 100 in any of the above embodiments.
[0070] Specifically, the cooking equipment is a steam oven. The steam oven also includes an outer shell, and a steam heating device 100 is disposed inside the outer shell.
[0071] Thus, when the water pump 20 of the steam heating device 100 is working, and water is sprayed outward due to leakage at the inlet 21 or outlet 22, the water will not directly splash onto the instantaneous steam generator 30 because both the inlet 21 and outlet 22 of the water pump 20 are set away from the instantaneous steam generator 30, thereby reducing electrical safety hazards.
[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0073] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A steam heating device, characterized in that include: The body (10) has a mounting plate (11); A water pump (20) is installed on one side of the mounting plate (11), and the water pump (20) has an inlet (21) and an outlet (22). An instantaneous steam generator (30) is installed on the same side of the mounting plate (11) as the water pump (20), and the instantaneous steam generator (30) is connected to the water outlet (22); The inlet (21) and outlet (22) are both located away from the instantaneous steam generator (30); the end of the water pump (20) that is away from the inlet (21) and outlet (22) is the tail end (23), and the tail end (23) is fixed to the mounting plate (11) by a fastener (70).
2. The steam heating device of claim 1, wherein, The body (10) also includes a side plate (12), which is connected to one side of the mounting plate (11). The water pump (20) is adjacent to the side plate (12), and the water inlet (21) and the water outlet (22) are arranged facing the side plate (12).
3. The steam heating device of claim 2, wherein, The body (10) also includes a base plate (13), which is connected to the bottom of the side plate (12). The base plate (13) is provided with at least one of a water collection tank, a drainage tank, or a drainage hole.
4. The steam heating device of claim 1, wherein, The steam heating device (100) also includes an inner liner, which is located inside the body (10) and on the side of the mounting plate (11) facing away from the water pump (20); A heat insulation component (45) is provided between the inner liner and the mounting plate (11) or between the mounting plate (11) and the water pump (20).
5. The steam heating device of claim 4, wherein, The heat insulation component (45) includes a sponge pad, which is disposed between the inner liner and the mounting plate (11) or between the mounting plate (11) and the water pump (20).
6. The steam heating device of claim 1, wherein, The steam heating device also includes a water pump sleeve (60) and a non-fully threaded screw (65). The water pump sleeve (60) is fitted around the outer periphery of the water pump (20) and is fixed to the mounting plate (11) by the non-fully threaded screw (65).
7. The steam heating device of claim 1, wherein, The fastener (70) includes a cable tie, and the tail end (23) is fixed to the mounting plate (11) by the cable tie.
8. The steam heating device of claim 1, wherein, The mounting plate (11) is provided with at least two positioning ear clips (111), all of which are spaced apart from each other. The instantaneous steam generator (30) cooperates with at least two of the positioning ear clips (111) to be positioned on the mounting plate (11).
9. The steam heating device according to any one of claims 1 to 8, characterized in that The steam heating device (100) also includes an inner liner, which is located inside the body (10) and on the side of the mounting plate (11) facing away from the water pump (20); the mounting plate (11) is also provided with an air inlet, which connects the instantaneous steam generator (30) and the inner liner. The horizontal distance between the instantaneous steam generator (30) and the air inlet is no greater than 110 mm, and the height difference between the instantaneous steam generator (30) and the air inlet is no greater than 15 mm.
10. The steam heating device according to any one of claims 1 to 8, characterized in that The horizontal distance between the water pump (20) and the instantaneous steam generator (30) is no greater than 160 mm, and the height difference between the water pump (20) and the instantaneous steam generator (30) is no greater than 60 mm.
11. A cooking apparatus, characterized by, Includes the steam heating device as described in any one of claims 1 to 10.
12. The cooking apparatus according to claim 11, wherein, The cooking equipment is a steam oven.