Household appliance

Abstract

The invention relates to a household appliance. The household appliance comprises a box body; an inner cavity is formed in the box body; the first steam generator is used for heating liquid to form steam; the first end of the first pipeline is communicated with the outlet end of the first steam generator, a nozzle is arranged at the second end of the first pipeline, and the nozzle is arranged in the inner cavity; the first end of the second pipeline is communicated with the inlet end of the first steam generator, and the second end of the second pipeline is used for being connected with liquid; liquid can be conveyed into the first steam generator through the second pipeline to be heated to form steam, the steam is sprayed into the inner cavity through the first pipeline and the nozzle to clean the inner wall of the inner cavity, the inner wall of the inner cavity is cleaned through the steam carrying the cleaning agent, and the cleaning effect on the inner wall of the inner cavity is improved; therefore, the function of cleaning the interior of the inner cavity of the household appliance is achieved, and the problem that the cavity of the household appliance is difficult to clean is efficiently solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a household appliance. Background Art

[0002] With the development of science and technology, home appliances such as ovens and dishwashers are becoming more and more popular. As living standards improve, people's performance requirements for home appliances such as ovens and dishwashers are also getting higher and higher.

[0003] At present, in some relevant household appliances, the cleaning methods for oil stains on the inner wall of the cavity of household appliances usually include high-temperature cleaning, steam cleaning, and oxidation self-cleaning. Among them, steam cleaning is an auxiliary cleaning and can only clean light oil stains; oxidation self-cleaning has a short effectiveness and needs to be replaced frequently; and high-temperature cleaning requires strong sealing, but the highest temperature resistance of sealing materials in household appliances such as ovens and dishwashers is only 280°C, and the temperature of the entire cavity of high-temperature self-cleaning is required to be around 450°C. Therefore, high-temperature cleaning cannot usually be used, resulting in difficulty in cleaning the inner wall of the cavity of household appliances. Summary of the invention

[0004] The object of the present invention is to provide a household appliance to optimize the cleaning structure of the household appliance in the related art and effectively solve the problem that the cavity of the household appliance is difficult to clean.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides a household appliance, which includes: a box body, which forms an outer shell of the household appliance; an inner cavity is provided in the box body; a first steam generator is arranged in the box body and is used to heat liquid to form steam; a first pipeline, the first end of the first pipeline is connected to the outlet end of the first steam generator, and the second end of the first pipeline is provided with a nozzle, and the nozzle is arranged in the inner cavity; a second pipeline, the first end of the second pipeline is connected to the inlet end of the first steam generator, and the second end of the second pipeline is used to connect liquid; wherein the liquid can be transported into the first steam generator through the second pipeline to be heated to form steam, and the steam is sprayed into the inner cavity through the first pipeline and the nozzle to clean the inner wall of the inner cavity.

[0007] The embodiments of the present invention have the following positive effects:

[0008] In the household appliance of the embodiment of the present invention, a nozzle is arranged in the inner cavity of the box, and a first steam generator is arranged in the box to heat and form steam power. The liquid is transported into the first steam generator by the second pipeline to heat and form steam, and the steam is sprayed into the inner cavity through the first pipeline and the nozzle to clean the inner wall of the inner cavity. The steam carries the detergent to clean the inner wall of the inner cavity, thereby improving the cleaning effect of the inner wall of the inner cavity, thereby realizing the cleaning function of the inner cavity of the household appliance, and effectively solving the problem that the cavity of the household appliance is difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 1 is a schematic structural diagram of a household appliance according to a first embodiment of the present invention.

[0010] Figure 2 yes Figure 1 Schematic diagram of some of the internal structures.

[0011] Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective.

[0012] Figure 4 yes Figure 3 Schematic diagram of part of the structure from another perspective.

[0013] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0014] Figure 6 yes Figure 2 Top view of the .

[0015] Figure 7 yes Figure 6 Middle BB section view.

[0016] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the C area in the middle.

[0017] Fig. 9 yes Figure 3 Schematic diagram of part of the cleaning system.

[0018] Fig.10 yes Fig. 9 A schematic diagram of a part of the structure.

[0019] Fig.11 yes Fig. 9 Another part of the structural diagram in .

[0020] Fig.12 yes Fig.11 Schematic diagram of the structure from another perspective.

[0021] Fig.132 is a schematic structural diagram of a household appliance according to a second embodiment of the present invention.

[0022] Fig.14 yes Fig.13 Schematic diagram of some of the internal structures.

[0023] Fig.15 yes Fig.14 Schematic diagram of the structure without the cleaning box and the water purification box.

[0024] Fig.16 yes Fig.15 Schematic diagram of the structure from another perspective.

[0025] Fig.17 yes Fig.16 Schematic diagram of part of the structure from another perspective.

[0026] Fig.18 yes Fig.19 Schematic diagram of the enlarged structure of the D area in the middle.

[0027] Fig.19 yes Fig.14 Top view of the .

[0028] Fig. 20 yes Fig.19 EE section view.

[0029] Fig.21 yes Fig. 20 Schematic diagram of the enlarged structure of the F region in the middle.

[0030] Fig. 22 yes Fig.16 Schematic diagram of part of the cleaning system.

[0031] Fig.23 yes Fig. 22 A schematic diagram of a part of the structure.

[0032] Fig.24 yes Fig. 22 Another part of the structural diagram in .

[0033] Fig.25 yes Fig.23 Schematic diagram of the structure from another perspective.

[0034] The reference numerals are as follows: 1. casing; 10. inner cavity; 11. liner; 113. water collection tank; 114. drain outlet; 115. filter cover; 12. door frame; 121. door seal; 13. heat dissipation duct; 131. heat dissipation fan; 132. air guide cover; 14. support top plate; 15. support back plate; 2. cabinet door; 31. clean water box; 32. water inlet pipeline; 33. water pump; 34. second steam generator; 35. fourth pipeline; 41. first steam generator; 42. circulation pump; 43. sewage box; 44. first pipeline; 441. nozzle; 45. drain pipe; 46. second pipeline; 461. first switch valve; 47. third pipeline; 471. second switch valve; 48. cleaning box; 49. cleaning pump; 410. clean water box; 411. fifth pipeline; 412. third switch valve; 5. controller. DETAILED DESCRIPTION

[0035] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] At present, in some relevant household appliances, the cleaning methods for oil stains on the inner wall of the cavity of household appliances usually include high-temperature cleaning, steam cleaning, and oxidation self-cleaning. Among them, steam cleaning is an auxiliary cleaning and can only clean light oil stains; oxidation self-cleaning has a short effectiveness and needs to be replaced frequently; and high-temperature cleaning requires strong sealing, but the highest temperature resistance of sealing materials in household appliances such as ovens and dishwashers is only 280°C, and the temperature of the entire cavity of high-temperature self-cleaning is required to be around 450°C. Therefore, high-temperature cleaning cannot usually be used, resulting in difficulty in cleaning the inner wall of the cavity of household appliances.

[0040] Figure 1 It is a structural schematic diagram of a household appliance according to an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of some of the internal structures. Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective. Figure 4 yes Figure 3 Schematic diagram of part of the structure from another perspective. Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0041] See also Figures 1 to 5 As shown, the household appliance provided by the first embodiment of the present invention mainly comprises a housing 1 and a cleaning system arranged in the housing 1. The various structures of the household appliance are described below by taking an oven as an example.

[0042] The box body 1 is configured as a housing of a household appliance, and the box body 1 is a rectangular hollow structure. It should be noted that in other embodiments, the box body 1 may also adopt a housing structure of other shapes, and the specific shape of the box body 1 may be adjusted as needed, and is not limited here.

[0043] The box body 1 is provided with an inner cavity 10, which can be used for high-temperature cooking of food by steaming, baking, etc. It should be noted that in other embodiments, the inner cavity 10 can be used as other functional cavities. For example, when the household appliance is a dishwasher, the inner cavity 10 can be used to wash tableware such as bowls and plates. When the household appliance is a disinfection cabinet, the inner cavity 10 can be used to disinfect tableware such as bowls and plates.

[0044] The box body 1 is provided with an inner liner 11, and the inner cavity 10 is formed in the inner liner 11. The front end of the inner liner 11 has an opening, and the front end opening of the inner liner 11 is connected to the interior of the inner cavity 10.

[0045] In some embodiments, an opening is provided on the front side wall of the box body 1, and the front side opening of the box body 1 is arranged opposite to the front end opening of the inner cavity 10 of the inner pot 11. Therefore, the food to be cooked can be put into the inner cavity 10 through the front side opening of the box body 1 for high temperature cooking. At the same time, after cooking, the food can be taken out of the inner cavity 10 through the front side opening of the box body 1.

[0046] See also Figure 1 As shown, in some embodiments, a door 2 is provided on the front side of the box body 1. The door 2 is movably arranged on the front side wall of the box body 1, and the door 2 can open and close the front opening of the box body 1, and then open and close the inner cavity 10.

[0047] See also Figure 1 and Figure 2 As shown, in some embodiments, a door frame 12 is provided on the front side wall of the box body 1, and the box door 2 is rotatably connected to the front side of the door frame 12. The front opening of the box body 1 is opened at the center of the door frame 12, that is, the door frame 12 is arranged around the periphery of the front opening of the box body 1. The front opening of the inner cavity 10 in the inner liner 11 is directly opposite to the center of the door frame 12, and the door frame 12 is arranged around the periphery of the front end opening of the inner liner 11. When the box door 2 is closed, the periphery edge of the box door 2 fits with the front side of the door frame 12, sealing the gap between the box door 2 and the door frame 12, thereby being able to close the inner cavity 10.

[0048] In some embodiments, a door seal 121 is provided around the front opening of the box body 1, and the door seal 121 is provided in the gap between the side of the inner liner 11 and the door frame 12. When the box door 2 is closed, the box door 2 can abut against the door seal 121, sealing the gap between the door frame 12 and the box door 2, thereby sealing the front opening of the box body 1, that is, sealing the front opening of the inner cavity 10.

[0049] Figure 6 yes Figure 2 Top view of the . Figure 7 yes Figure 6 Middle BB section view.

[0050] See also Figures 2 to 7As shown, in some embodiments, a heat dissipation duct 13 is provided in the box body 1, and the heat dissipation duct 13 is provided outside the inner liner 11. Specifically, the heat dissipation duct 13 can be provided in a cavity (not shown in the figure) formed between the inner liner 11 and the box body 1. The air inlet end of the heat dissipation duct 13 is connected to the cavity, and the air outlet end of the heat dissipation duct 13 is connected to the outside of the box body 1. At the same time, a heat dissipation fan 131 is provided in the heat dissipation duct 13, and the heat dissipation fan 131 is used to provide wind power, extract air in the cavity, and discharge the heat in the cavity to the outside of the box body 1 through the heat dissipation duct 13, so as to realize the heat dissipation function inside the box body 1.

[0051] In some embodiments, the heat dissipation duct 13 is disposed above the top of the inner liner 11, and the air outlet of the heat dissipation duct 13 faces the front side of the box 1 and is connected to the front space of the box 1. Therefore, the heat dissipation duct 13 can exhaust and dissipate heat from the front side of the box 1.

[0052] In some embodiments, the heat dissipation fan 131 is disposed at the air inlet end of the heat dissipation air duct 13. The heat dissipation fan 131 is a cross-flow fan to increase the wind force at the air inlet end of the heat dissipation air duct 13, improve the efficiency of extracting air in the cavity, and further improve the heat dissipation efficiency in the cavity.

[0053] See also Figures 2 to 8 As shown, in some embodiments, a supporting top plate 14 is provided in the box body 1, and the supporting top plate 14 is arranged above the inner liner 11 at intervals. An air guide cover 132 is provided on the top surface of the supporting top plate 14, and the air guide cover 132 and the supporting top plate 14 enclose a heat dissipation air duct 13. At this time, the rear end of the air guide cover 132 serves as the air inlet end of the heat dissipation air duct 13, and the heat dissipation fan 131 is provided at the rear end of the air guide cover 132. The front end of the air guide cover 132 faces the front side of the box body 1 and serves as the air outlet end of the heat dissipation air duct 13.

[0054] In some embodiments, a support back plate 15 is further provided in the box body 1, and the support back plate 15 is provided on the back side of the inner liner 11. The bottom of the support back plate 15 is supported on the bottom surface of the box body 1, and the top of the support back plate 15 is connected to the rear end of the support top plate 14. The front end of the support top plate 14 is fixed on the front wall of the box body 1, so that the support top plate 14 can be stably fixed on the upper side of the inner liner 11.

[0055] In some embodiments, a heating device (not shown in the figure) is provided in the box body 1. The heating device is provided on the rear wall of the inner tank 11, that is, in the rear area of ​​the inner cavity 10. The heating device is used to heat the air in the inner cavity 10, thereby increasing the temperature inside the inner cavity 10.

[0056] In some embodiments, a heating fan (not shown in the figure) is provided at the rear side wall of the inner cavity 10. The heating fan is used to generate wind force to transport the hot air generated by the heating device to other areas of the inner cavity 10, thereby enabling the interior of the inner cavity 10 to be evenly heated.

[0057] It should be noted that, in some other embodiments, the heating device may also be disposed on the top wall, bottom wall or other side walls of the inner cavity 10 to heat the interior of the inner cavity 10 from the top area, bottom area or other areas of the inner cavity 10 .

[0058] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the C area in the middle. Fig. 9 yes Figure 3 Schematic diagram of part of the cleaning system. Fig.10 yes Fig. 9 A schematic diagram of a part of the structure.

[0059] See also Figures 3 to 10 As shown, in some embodiments, the cleaning system is disposed in the housing 1, and the cleaning system is used to realize the self-cleaning function. The cleaning system includes a clean water box 31, a water inlet pipeline 32, a water pump 33 and a second steam generator 34.

[0060] The clean water box 31 is arranged in the box body 1, and the clean water box 31 is used to store clean water, that is, clean water. The first end of the water inlet pipeline 32 is connected to the clean water box 31, and the second end of the water inlet pipeline 32 is connected to the inlet end of the second steam generator 34. The outlet end of the second steam generator 34 is connected to the inner cavity 10 through the fourth pipeline 35. The water pump 33 is arranged on the water inlet pipeline 32, and the water pump 33 is used to pump the clean water in the clean water box 31 into the second steam generator 34, and heat it through the second steam generator 34. The generated steam can be transported into the inner cavity 10 through the outlet end of the second steam generator 34 and the fourth pipeline 35, and the inner cavity 10 is steam cooked or steam cleaned by steam. At this time, the fourth pipeline 35 is used as a steam pipeline.

[0061] It should be noted that, in other embodiments, the second steam generator 34 may not work, that is, the second steam generator 34 does not heat the water flowing through it, and only uses the water pump 33 to transport the clean water in the clean water box 31 through the water inlet pipe 32, the second steam generator 34, and the fourth pipe 35 into the inner cavity 10 to provide clean water for the inner cavity 10. In addition, the working temperature of the second steam generator 34 can be adjusted, that is, the water is heated by the second steam generator 34, and the temperature of the water in the second steam generator 34 is adjusted to form hot water, but it is ensured that the hot water will not turn into steam, and then the fourth pipe 35 can provide hot water of different temperatures for the inner cavity 10, and the fourth pipe 35 is used as a water supply pipe.

[0062] In some embodiments, the clean water box 31 is fixed above the support top plate 14. The water inlet pipe 32 is arranged on the back side of the inner tank 11 and fixed on the back side of the support back plate 15. The water pump 33 and the second steam generator 34 are fixed on the back side of the support back plate 15.

[0063] In some embodiments, one end of the fourth pipeline 35 away from the second steam generator 34 passes through the supporting back plate 15 and extends from the rear wall of the inner tank 11 into the inner tank 11 to be arranged in the inner tank 11 .

[0064] Fig.11 yes Fig. 9 Another part of the structural diagram in . Fig.12 yes Fig.11 Schematic diagram of the structure from another perspective.

[0065] See also Figures 2 to 13 As shown, in some embodiments, the cleaning system further includes a first steam generator 41 , a circulation pump 42 , and a sewage box 43 .

[0066] The first steam generator 41 is used to generate steam and clean the inner wall of the inner cavity 10. The outlet end of the first steam generator 41 is connected to the first end of the first pipeline 44, and the second end of the first pipeline 44 extends into the inner cavity 10. The second end of the first pipeline 44 forms a nozzle 441, which is arranged in the inner cavity 10 and connected to the inner cavity 10. Therefore, the steam generated by the first steam generator 41 can be sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441, and then used to steam clean the inner wall of the inner cavity 10.

[0067] It should be noted that, in other embodiments, a nozzle (not shown in the figure) can also be set at the second end of the first pipeline 44. The nozzle can be detachably arranged in the inner cavity 10, and the nozzle 441 is formed on the nozzle, so that the steam generated by the first steam generator 41 can be transported into the nozzle through the first pipeline 44, and then sprayed into the inner cavity 10 through the nozzle 441 on the nozzle to clean the inner wall of the inner cavity 10.

[0068] See also Figures 3 to 12As shown, in some embodiments, the circulation pump 42 is arranged in the box body 1 and outside the inner tank 11, the water outlet end of the circulation pump 42 is connected to the first end of the second pipeline 46, and the second end of the second pipeline 46 is connected to the inlet end of the first steam generator 41. At the same time, a water collecting tank 113 is provided in the center of the bottom of the inner cavity 10, and a drain port 114 is provided at the bottom of the water collecting tank 113. A drain pipe 45 is provided below the bottom of the inner tank 11, and the water collecting tank 113 is connected to the first end of the drain pipe 45 through the drain port 114, and the second end of the drain pipe 45 is connected to the water inlet end of the circulation pump 42. Therefore, the circulation pump 42 can extract the cleaning liquid in the sump 113 through the drain pipe 45 and the drain port 114, that is, extract the liquid in the inner cavity 10, and transport the extracted liquid into the first steam generator 41 through the second pipeline 46 for heating, and after heating, high-pressure steam carrying the cleaning liquid is formed, and the high-pressure steam is transported to the inner cavity 10 through the first pipeline 44 and the nozzle 441 to clean the inner wall of the inner cavity 10. The first steam generator 41 can adopt a flow channel steam generator, and then generate high-pressure steam carrying the cleaning liquid by controlling the temperature.

[0069] It should be noted that before performing the cleaning operation, detergent can be pre-placed in the water collection tank 113, and the clean water in the clean water box 31 can be transported into the inner cavity 10 through the water pump 33, thereby dissolving the detergent and filling the water collection tank 113 with a cleaning liquid mixed with detergent and water; the cleaning liquid in the inner cavity 10 is then extracted by the circulation pump 42, and transported into the first steam generator 41 through the second pipeline 46 for heating. After heating, high-pressure steam carrying the cleaning liquid is formed, and the high-pressure steam is transported to the interior of the inner cavity 10 through the first pipeline 44 and the nozzle 441, thereby cleaning the inner wall of the inner cavity 10.

[0070] See also Figures 2 to 12 As shown, in some embodiments, the sewage box 43 is arranged in the box body 1 and outside the inner tank 11. The water outlet end of the circulation pump 42 is also connected to the first end of the third pipe 47, and the second end of the third pipe 47 is connected to the sewage box 43. Therefore, after the circulation cleaning of the inner wall of the inner cavity 10 is completed, the sewage in the inner cavity 10 can be extracted by the circulation pump 42, discharged from the inner cavity 10 through the third pipe 47, and transported to the sewage box 43 for collection.

[0071] It should be noted that, in other embodiments, the sewage box 43 may also be disposed outside the housing 1. Alternatively, the second end of the third pipe 47 may also be directly connected to the outside of the housing 1. After the inner wall of the inner cavity 10 is circulated and cleaned, the sewage in the inner cavity 10 may be extracted by the circulation pump 42, and discharged from the inner cavity 10 through the third pipe 47, and directly discharged outside the housing 1.

[0072] See also Figure 3 and Figure 4As shown, in some embodiments, the second pipeline 46 is provided with a first switch valve 461, and the first switch valve 461 is used to open and close the second pipeline 46. The first switch valve 461 is arranged at the first end of the second pipeline 46, and is arranged at the connection between the second pipeline 46 and the outlet end of the circulation pump 42. At the same time, the first end of the third pipeline 47 is provided with a second switch valve 471, and the second switch valve 471 is used to open and close the third pipeline 47. The second switch valve 471 is arranged at the first end of the third pipeline 47, and is arranged at the connection between the third pipeline 47 and the outlet end of the circulation pump 42. Both the first switch valve 461 and the second switch valve 471 can be electromagnetic valves.

[0073] Therefore, when it is necessary to circulate and clean the inner wall of the inner cavity 10, the second pipeline 46 can be opened by the first switch valve 461, and the third pipeline 47 can be closed by the second switch valve 471, so that the circulation pump 42 can transport the extracted liquid through the second pipeline 46 into the first steam generator 41 for heating. After heating, high-pressure steam carrying the cleaning liquid is formed, and the high-pressure steam is sprayed onto the inner wall of the inner cavity 10 through the first pipeline 44 and the nozzle 441.

[0074] When the sewage in the inner cavity 10 needs to be discharged, the second pipeline 46 can be closed by the first switch valve 461, and the third pipeline 47 can be opened by the second switch valve 471, so that the circulation pump 42 can discharge the extracted sewage from the inner cavity 10 through the third pipeline 47 and transport it into the sewage box 43.

[0075] It should be noted that, in some other embodiments, a three-way valve (not shown in the figure) may be provided at the connection between the outlet end of the circulation pump 42 and the second pipeline 46 and the third pipeline 47. The three-way valve may be an electromagnetic switching valve, which has an inlet and two outlets, wherein the inlet of the three-way valve is connected to the outlet end of the circulation pump 42, one outlet of the three-way valve is connected to the first end of the second pipeline 46, and the other outlet of the three-way valve is connected to the first end of the third pipeline 47. Therefore, by switching the three-way valve to control the connection between the two outlets and the inlet, the second pipeline 46 can be closed and the third pipeline 47 can be opened, or the second pipeline 46 and the third pipeline 47 can be closed.

[0076] See also Figures 2 to 8 As shown, in some embodiments, the cleaning system further includes a controller 5, which is disposed in the housing 1 and above the top of the air guide cover 132 to facilitate heat dissipation of the controller 5. The controller 5 is connected to the water pump 33 by signal. Therefore, the water pump 33 can be controlled by the controller 5 to transport the clean water in the clean water box 31 into the second steam generator 34.

[0077] In some embodiments, the controller 5 is connected to the first steam generator 41 by signal. Therefore, the controller 5 can control the first steam generator 41 to heat the liquid entering the first steam generator 41, control the temperature of the water flowing through the second steam generator 34, make the water flowing through the second steam generator 34 form steam, and then spray the steam into the inner cavity 10 through the first pipeline 44 and the nozzle 441.

[0078] In some embodiments, the controller 5 is connected to the second steam generator 34 by signal. Therefore, the controller 5 can control the second steam generator 34 to heat the water entering the second steam generator 34, control the temperature of the water flowing through the second steam generator 34, make the water flowing through the second steam generator 34 form hot water or steam, and then transport the hot water or steam into the inner cavity 10.

[0079] In some embodiments, the controller 5 is connected to the circulation pump 42, the first switch valve 461 and the second switch valve 471 by signal. Therefore, the controller 5 can control the first switch valve 461 to open, and control the second switch valve 471 to close, so that the second pipeline 46 is opened and the third pipeline 47 is closed, and then the circulation pump 42 can be controlled by the controller 5 to extract the liquid in the inner cavity 10, and the extracted liquid is transported into the first steam generator 41 through the second pipeline 46 for heating, and after heating, high-pressure steam carrying cleaning liquid is formed, and the high-pressure steam is transported to the inner cavity 10 through the first pipeline 44 and the nozzle 441, so as to clean the inner wall of the inner cavity 10. At the same time, the controller 5 can control the first switch valve 461 to close, and control the second switch valve 471 to open, so that the second pipeline 46 is closed and the third pipeline 47 is opened, and then the circulation pump 42 can be controlled by the controller 5 to extract the liquid in the inner cavity 10, and the extracted water is transported into the sewage box 43 through the third pipeline 47 for collection, so as to realize the intelligent and efficient cleaning function and cleaning effect of the inner cavity 10.

[0080] See also Figures 2 to 10 As shown, in some embodiments, a filter cover 115 is provided at the bottom of the water collection tank 113, and the filter cover 115 is provided above the drain port 114. The filter cover 115 is densely covered with filter holes (not shown in the figure). Therefore, the liquid in the water collection tank 113 can be filtered through the filter holes of the filter cover 115, and then discharged through the drain port 114, and enter the circulation pump 42 through the drainage pipe 45, so as to prevent debris, particulate matter, etc. from entering the drainage pipe 45 and clogging the circulation pump 42.

[0081] In some embodiments, a turbidity sensor (not shown) is provided in the water collection tank 113 of the inner cavity 10, and the turbidity sensor is used to detect the turbidity value of the water in the water collection tank 113 of the inner cavity 10, and the turbidity sensor is connected to the controller 5 by signal. By detecting the turbidity value of the water in the water collection tank 113 of the inner cavity 10 by the turbidity sensor, the degree of dirt in the inner cavity 10 can be known, and then the controller 5 can intelligently control the cleaning parameters such as the time of the circulation cleaning and the cleaning water temperature.

[0082] See also Figures 2 to 12 As shown, in some embodiments, the first steam generator 41 is provided with two outlet ends. At the same time, two first pipelines 44 are provided, and the two first pipelines 44 are connected to the two outlet ends of the first steam generator 41 in a one-to-one correspondence, and at least two nozzles 441 are formed in the inner cavity 10. The two nozzles 441 are arranged at intervals and face different areas of the inner cavity 10. Therefore, the steam generated by the first steam generator 41 can be sprayed into different areas of the inner cavity 10 through the two nozzles 441, thereby improving the cleaning effect on the inner wall of the inner cavity 10.

[0083] In some embodiments, the first steam generator 41 is provided with a plurality of outlets. At the same time, a plurality of first pipelines 44 are provided, and the plurality of first pipelines 44 are connected to the plurality of outlets of the first steam generator 41 in a one-to-one correspondence, and a plurality of nozzles 441 are formed in the inner cavity 10, and the plurality of nozzles 441 face different areas of the inner cavity 10. It should be noted that the number of outlets of the first steam generator 41, the first pipelines 44 and the nozzles 441 can be adjusted as needed, and is not limited here.

[0084] Fig.13 2 is a schematic structural diagram of a household appliance according to a second embodiment of the present invention. Fig.14 yes Fig.13 Schematic diagram of some of the internal structures. Fig.15 yes Fig.14 Schematic diagram of the structure without the cleaning box and the water purification box. Fig.16 yes Fig.15 Schematic diagram of the structure from another perspective. Fig.17 yes Fig.16 Schematic diagram of part of the structure from another perspective. Fig.18 yes Fig.19 Schematic diagram of the enlarged structure of the D area in the middle. Fig.17 yes Fig.16 Schematic diagram of part of the structure from another perspective. Fig.18 yes Fig.19 Schematic diagram of the enlarged structure of the D area in the middle. Fig.19 yes Fig.14 Top view of the . Fig. 20 yes Fig.19 EE section view. Fig.21 yes Fig. 20Schematic diagram of the enlarged structure of the F region in the middle. Fig. 22 yes Fig.16 Schematic diagram of part of the cleaning system.

[0085] See also Figures 13 to 22 As shown, the household appliance provided by the second embodiment of the present invention mainly includes a housing 1 and a cleaning system arranged in the housing 1. Figures 1 to 12 The main difference between the household appliance provided in the first embodiment shown is that the cleaning system is different. The same parts can refer to the description of the first embodiment above, and will not be repeated here.

[0086] Fig.23 yes Fig. 22 A schematic diagram of a part of the structure.

[0087] See also Fig.23 As shown, in some embodiments, the cleaning system of the second embodiment of the present invention includes a clean water box 31, a water inlet pipeline 32, a water pump 33 and a second steam generator 34. Figures 1 to 12 The structures of the clean water box 31, the water inlet pipe 32, the water pump 33 and the second steam generator 34 of the first embodiment shown are the same, and can be referred to the corresponding structural description of the first embodiment mentioned above, which will not be repeated here.

[0088] Fig.24 yes Fig. 22 Another part of the structural diagram in . Fig.25 yes Fig.23 Schematic diagram of the structure from another perspective.

[0089] See also Figures 14 to 25 As shown, the cleaning system of the second embodiment of the present invention further includes a first steam generator 41 , a circulation pump 42 , a cleaning box 48 and a cleaning pump 49 .

[0090] The outlet end of the first steam generator 41 is connected to the first end of the first pipeline 44, and the second end of the first pipeline 44 extends into the inner cavity 10. The second end of the first pipeline 44 forms a nozzle 441, which is arranged in the inner cavity 10 and connected to the inner cavity 10. Therefore, the steam generated by the first steam generator 41 can be sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441, and then used to steam clean the inner wall of the inner cavity 10.

[0091] The cleaning box 48 is used to store cleaning liquid. The water inlet end of the cleaning pump 49 is connected to the cleaning box 48 through the second pipeline 46, and the water outlet end of the cleaning pump 49 is connected to the inlet end of the first steam generator 41. Therefore, the cleaning pump 49 can extract the cleaning liquid in the cleaning box 48 through the second pipeline 46, and pump the extracted cleaning liquid into the first steam generator 41 for heating, and after heating, high-pressure steam carrying the cleaning liquid is formed, and the high-pressure steam is transported to the inner cavity 10 through the first pipeline 44 and the nozzle 441, thereby cleaning the inner wall of the inner cavity 10. The first steam generator 41 can adopt a flow channel steam generator, and then generate high-pressure steam carrying the cleaning liquid by controlling the temperature.

[0092] In some embodiments, a mixture of detergent and clean water can be pre-added into the cleaning box 48. The detergent can be a solid detergent or a cleaning block, or a liquid detergent, so that there is enough cleaning liquid in the cleaning box 48 to meet the cleaning requirements of the inner wall of the inner cavity 10, so that there is no need to replace the cleaning liquid during the cleaning process.

[0093] In some embodiments, the cleaning box 48 is detachably disposed in the inner cavity 10, and the inner cavity 10 may have sufficient space to accommodate the cleaning box 48, so that the cleaning box 48 may have sufficient volume to place the cleaning liquid and meet the cleaning requirements of the inner wall of the inner cavity 10, so that there is no need to replace the cleaning liquid during the cleaning process.

[0094] It should be noted that, in some other embodiments, the cleaning box 48 may also be disposed outside the inner cavity 10 , or outside the box body 1 .

[0095] See also Figures 15 to 25 As shown, the water outlet of the circulation pump 42 is connected to the first end of the third pipeline 47, and the second end of the third pipeline 47 is connected to the inside of the cleaning box 48. At the same time, a water collecting tank 113 is provided in the center of the bottom of the inner cavity 10, and a drain port 114 is provided at the bottom of the water collecting tank 113. A drain pipe 45 is provided below the bottom of the inner tank 11, and the water collecting tank 113 is connected to the first end of the drain pipe 45 through the drain port 114, and the second end of the drain pipe 45 is connected to the water inlet of the circulation pump 42. Therefore, the steam sprayed into the inner cavity 10 through the nozzle 441 can condense on the inner wall of the inner cavity 10 and flow into the sump 113 at the bottom of the inner cavity 10. The circulating pump 42 extracts the liquid in the sump 113 through the drain pipe 45 and the drain port 114, that is, extracts the liquid in the inner cavity 10, and the extracted liquid is pumped into the cleaning box 48 through the third pipeline 47, and is re-extracted by the cleaning pump 49. After being heated by the first steam generator 41, it is re-sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441, thereby realizing the circulating cleaning function of the inner wall of the inner cavity 10.

[0096] See also Figures 14 to 25As shown, in some embodiments, one end of the second pipeline 46 away from the cleaning pump 49 extends into the inner cavity 10, and one end of the third pipeline 47 away from the circulation pump 42 extends into the inner cavity 10. When the cleaning box 48 is installed in the inner cavity 10, the cleaning box 48 can be connected to the ends of the second pipeline 46 and the third pipeline 47 respectively.

[0097] See also Figures 14 to 25 As shown, in some embodiments, the cleaning system of the second embodiment of the present invention further includes a clean water box 410, which is used to store clean water. The water inlet end of the cleaning pump 49 is also connected to the first end of the fifth pipeline 411, and the second end of the fifth pipeline 411 is connected to the clean water box 410. Therefore, after the cycle cleaning is completed, the clean water in the clean water box 410 can be extracted through the cleaning pump 49 and the fifth pipeline 411, and the extracted clean water can be transported to the first steam generator 41 for heating, and the formed steam can be sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441, thereby flushing the inner wall of the inner cavity 10, thereby improving the cleaning effect of the inner wall of the inner cavity 10.

[0098] In addition, after the flushing is completed, the liquid in the inner cavity 10 can be extracted again by the circulation pump 42, and the extracted liquid can be pumped into the cleaning box 48 through the third pipeline 47. Therefore, during the entire cleaning process of circulating cleaning and flushing, the user does not need to replace and dump water, thereby realizing the automatic cleaning function of the inner cavity 10 of the household appliance.

[0099] See also Figures 14 to 21 As shown, in some embodiments, the water purification box 410 is detachably disposed in the inner cavity 10, and the inner cavity 10 may have enough space to accommodate the water purification box 410 so that the water purification box 410 can have enough clean water.

[0100] It should be noted that, in some other embodiments, the water purification box 410 may also be arranged outside the inner cavity 10, or outside the box body 1.

[0101] See also Figures 14 to 20 As shown, in some embodiments, one end of the fifth pipeline 411 away from the cleaning pump 49 extends into the inner cavity 10. When the water purification box 410 is installed in the inner cavity 10, the water purification box 410 can be connected to the end of the fifth pipeline 411.

[0102] See also Figures 16 to 25 As shown, in some embodiments, a first switch valve 461 is provided on the second pipeline 46, and the first switch valve 461 is used to open and close the second pipeline 46. At the same time, a third switch valve 412 is provided on the fifth pipeline 411, and the third switch valve 412 is used to open and close the fifth pipeline 411. Both the first switch valve 461 and the third switch valve 412 can be solenoid valves.

[0103] Therefore, when it is necessary to circulate and clean the inner wall of the inner cavity 10, the second pipeline 46 can be opened through the first switch valve 461, and the fifth pipeline 411 can be closed through the third switch valve 412, so that the cleaning pump 49 can extract the cleaning liquid in the cleaning box 48, and transport it into the first steam generator 41 for heating. The steam carrying the cleaning liquid is sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441 to clean the inner wall of the inner cavity 10.

[0104] When it is necessary to flush the inner wall of the inner cavity 10, the second pipeline 46 can be closed by the first switch valve 461, and the fifth pipeline 411 can be opened by the third switch valve 412, so that the cleaning pump 49 can extract clean water in the water purification box 410, transport it into the first steam generator 41 for heating, and then spray the formed steam into the inner cavity 10 through the first pipeline 44 and the nozzle 441 to flush the inner wall of the inner cavity 10.

[0105] In addition, after the cleaning process and the flushing process are completed, the liquid in the inner cavity 10 can be extracted by the circulation pump 42 and the extracted liquid can be pumped into the cleaning box 48 through the third pipeline 47 .

[0106] It should be noted that, in some other embodiments, a three-way valve (not shown in the figure) may be provided at the connection between the inlet end of the cleaning pump 49 and the second pipeline 46 and the fifth pipeline 411. The three-way valve may be an electromagnetic switching valve, which has two inlets and one outlet, wherein the outlet of the three-way valve is connected to the inlet end of the cleaning pump 49, one inlet of the three-way valve is connected to one end of the second pipeline 46, and the other inlet of the three-way valve is connected to one end of the fifth pipeline 411. Therefore, by switching the three-way valve to control the connection between the two inlets and the outlet, the second pipeline 46 can be closed and the fifth pipeline 411 can be opened, or the second pipeline 46 can be opened and the fifth pipeline 411 can be closed.

[0107] In some other embodiments, two cleaning pumps 49 may be provided, one of which is provided on the second pipeline 46 to extract the liquid in the cleaning box 48. The other cleaning pump 49 is provided on the fifth pipeline 411 to extract the water in the water purification box 410. The liquids extracted by the two cleaning pumps 49 are both transported to the first steam generator 41 for heating, and then sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441.

[0108] See also Figures 2 to 13As shown, in some embodiments, the cleaning system of the second embodiment of the present invention further includes a controller 5, and the controller 5 is connected to the cleaning pump 49, the first switch valve 461 and the third switch valve 412 by signal. Therefore, the controller 5 can control the first switch valve 461 to open, and control the third switch valve 412 to close, so that the second pipeline 46 is opened and the fifth pipeline 411 is closed, and then the cleaning pump 49 can be controlled by the controller 5 to extract the cleaning liquid in the cleaning box 48 and transport it into the first steam generator 41 for heating, and the steam carrying the cleaning liquid is sprayed into the inner cavity 10 through the first pipeline 44 and the nozzle 441 to clean the inner wall of the inner cavity 10. At the same time, the controller 5 can control the first switch valve 461 to close, and control the third switch valve 412 to open, so that the second pipeline 46 is closed and the fifth pipeline 411 is opened, and then the cleaning pump 49 can be controlled by the controller 5 to extract the clean water in the clean water box 410, and then transport it into the first steam generator 41 for heating, and spray it into the inner cavity 10 through the first pipeline 44 and the nozzle 441 to wash the inner wall of the inner cavity 10.

[0109] In some embodiments, the controller 5 is connected to the circulation pump 42 by signal. Therefore, after the cleaning process and the flushing process are completed, the controller 5 can control the circulation pump 42 to extract the liquid in the inner cavity 10, and draw the extracted liquid into the cleaning box 48 through the third pipeline 47 for collection, so as to realize the intelligent and efficient cleaning function and cleaning effect of the inner cavity 10.

[0110] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A household appliance, characterized in that: include: A housing, which forms the outer shell of the household appliance; An inner cavity is provided in the box body; A first steam generator is disposed in the box and is used to heat the liquid to form steam; a first pipeline, wherein a first end of the first pipeline is connected to an outlet end of the first steam generator, and a second end of the first pipeline is provided with a nozzle, and the nozzle is arranged in the inner cavity; a second pipeline, wherein a first end of the second pipeline is connected to an inlet end of the first steam generator, and a second end of the second pipeline is used for connecting a liquid; The liquid can be transported into the first steam generator through the second pipeline to be heated to form steam, and the steam is sprayed into the inner cavity through the first pipeline and the nozzle to clean the inner wall of the inner cavity.

2. The household appliance according to claim 1, characterized in that: The port at the second end of the first pipeline extends into the inner cavity, and the port at the second end of the first pipeline forms the nozzle.

3. The household appliance according to claim 1, characterized in that: The first steam generator is provided with at least two outlet ends; the first pipeline is provided with at least two, at least two first pipelines are connected to the outlet ends of the first steam generator in a one-to-one correspondence, and at least two nozzles are formed in the inner cavity.

4. The household appliance according to claim 1, characterized in that: The household appliance further comprises a clean water box, a water pump and a second steam generator arranged in the box; The clean water box is connected to the second steam generator through a water inlet pipeline, and the water pump is arranged on the water inlet pipeline; the outlet end of the second steam generator is connected to the inner cavity through a fourth pipeline; Wherein, the water pump can pump the water in the clean water box into the second steam generator for heating, and transport the heated hot water or steam into the inner cavity through the fourth pipeline.

5. The household appliance according to claim 1, characterized in that: A water collecting tank is arranged at the bottom of the inner cavity, and a turbidity sensor is arranged in the water collecting tank. The turbidity sensor is used to detect the turbidity value of the liquid in the water collecting tank.

6. The household appliance according to claim 1, characterized in that: The household appliance further comprises a circulation pump, a drain port is provided at the bottom of the inner cavity, a water inlet of the circulation pump is connected to the drain port, and a water outlet of the circulation pump is connected to an inlet of the first steam generator through the second pipeline; The circulation pump can extract the liquid in the inner cavity, and transport the liquid into the first steam generator through the second pipeline to heat it into steam, and spray the steam into the inner cavity through the first pipeline and the nozzle to circulate and clean the inner wall of the inner cavity.

7. The household appliance according to claim 6, characterized in that: The household appliance further comprises a sewage box, and the water outlet end of the circulation pump is connected to the sewage box through a third pipeline; After the circulation cleaning is completed, the circulation pump can extract the liquid in the inner cavity and pump the liquid into the sewage box through the third pipeline.

8. The household appliance according to claim 7, characterized in that: The second pipeline is provided with a first switch valve, and the first switch valve is used to open and close the second pipeline; the third pipeline is provided with a second switch valve, and the second switch valve is used to open and close the third pipeline.

9. The household appliance according to claim 8, characterized in that: The household appliance further comprises a controller, and the circulation pump, the first switch valve and the second switch valve are respectively connected to the controller by signal; The controller can control the first switch valve to open the second pipeline, and control the second switch valve to close the third pipeline, and the circulating pump can transport the extracted liquid through the second pipeline into the first steam generator for heating to form steam, and spray the steam into the inner cavity through the first pipeline and the nozzle; The controller can control the first switch valve to close the second pipeline, and control the second switch valve to open the third pipeline. The circulation pump can transport the extracted liquid into the sewage box through the third pipeline.

10. The household appliance according to claim 1, characterized in that: The household appliance further comprises a cleaning pump and a cleaning box; The first end of the second pipeline is connected to the inlet end of the first steam generator through the cleaning pump; The cleaning box is used to store cleaning liquid; The second end of the second pipeline is connected to the cleaning box; The cleaning pump can pump the cleaning liquid in the cleaning box into the first steam generator through the second pipeline to heat the cleaning liquid into steam.

11. The household appliance according to claim 10, characterized in that: The household appliance further comprises a circulation pump, a drain port is provided at the bottom of the inner cavity, a water inlet of the circulation pump is connected to the drain port, and a water outlet of the circulation pump is connected to the cleaning box through a third pipeline; The circulation pump can extract the liquid in the inner cavity and transport it into the cleaning box through the third pipeline.

12. The household appliance according to claim 11, characterized in that: The cleaning box is detachably disposed in the inner cavity; One end of the second pipeline away from the cleaning pump extends into the inner cavity, and one end of the third pipeline away from the circulation pump extends into the inner cavity; When the cleaning box is installed in the inner cavity, the cleaning box can be connected to the ends of the second pipeline and the third pipeline respectively.

13. The household appliance according to claim 10, characterized in that: The household appliance further comprises a water purification box, which is detachably arranged in the inner cavity; The water inlet end of the cleaning pump is also connected to the first end of the fifth pipeline, and the second end of the fifth pipeline extends into and is arranged in the inner cavity; When the water purification box is installed in the inner cavity, the water purification box can be connected to the ends of the fifth pipeline respectively.

14. The household appliance according to claim 13, characterized in that: The second pipeline is provided with a first switch valve, and the first switch valve is used to open and close the second pipeline; the fifth pipeline is provided with a second switch valve, and the second switch valve is used to open and close the fifth pipeline.

15. The household appliance according to claim 14, characterized in that: The household appliance further comprises a controller, and the first switch valve and the second switch valve are respectively connected to the controller; The controller can control the first switch valve to open the second pipeline, and control the second switch valve to close the fifth pipeline, and the cleaning pump can extract the liquid in the cleaning box through the second pipeline, and spray it into the inner cavity through the first pipeline and the nozzle; The controller can control the first switch valve to close the second pipeline, and control the second switch valve to open the fifth pipeline. The cleaning pump can extract water from the water purification box through the fifth pipeline and spray it into the inner cavity through the first pipeline and the nozzle.

16. The household appliance according to claim 6 or 11, characterized in that: The drain port is connected to the water pumping end of the circulation pump through a drain pipe; The drain outlet is covered with a filter cover, and the filter cover is densely covered with filter holes.

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