A self-cleaning steam oven and its self-cleaning method

Abstract

This invention relates to the technical field of kitchen appliances, and discloses a self-cleaning steam oven and its self-cleaning method, comprising: a cabinet with a cavity open on one side, a rotatable water nozzle at the upper end of the cavity, a water receiving trough at the lower end of the cavity, and an inlet on the cabinet above the opening of the cavity; a panel assembly including a swingable control panel; a water storage assembly detachably installed in the inlet; and a steam generator installed on the back of the cabinet, the steam generator having an inlet pipe, a first output pipe, and a second output pipe, the first output pipe also being connected to the water nozzle to output hot water, causing the water nozzle to rotate automatically by the thrust of the hot water; this self-cleaning steam oven is simple and convenient to operate, effectively reducing the size of the self-cleaning steam oven, the steam drives the water nozzle to rotate, allowing the steam to be quickly dispersed in all directions, resulting in higher cleaning efficiency, and is more energy-efficient than the self-cleaning structure of traditional steam ovens.

Description

Technical Field

[0001] This invention relates to the technical field of kitchen appliances, and more specifically, to a self-cleaning steam oven and its self-cleaning method. Background Technology

[0002] In existing microwave-steam-oven combination appliances, many oil stains or other dried stains often form on the inner wall of the oven after use. These stains can be softened and washed away by high-temperature steam. For example, Chinese patent document CN118383644A discloses a steam oven and self-cleaning method. This steam oven can generate steam or steam-water as needed, and at the same time, a circulating fan assembly drives the steam or steam-water to all parts of the inner cavity to achieve flushing and washing of the inner cavity.

[0003] However, the wastewater tank and water tank assembly of the aforementioned steam oven are separate units, and it also uses a hot air circulation system. This not only takes up a lot of space, but also requires users to disassemble and reassemble them separately for water treatment, making operation cumbersome. Furthermore, during the process of dispersing steam to various parts of the oven cavity using circulating air, the steam is prone to rapid cooling, causing stains to not soften quickly due to the relatively low temperature. Although this steam will be reheated by the heating module in the cavity, the hot air in the parts of the oven that are far from the output port will also cool down rapidly due to the distance, resulting in insufficient temperature and requiring a longer heating time, which will make the oven consume more electricity. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, the present invention provides a self-cleaning steam oven and a self-cleaning method thereof to solve the above-mentioned and related problems.

[0005] The technical solution adopted by this invention to solve its technical problem is: a self-cleaning steam oven, comprising:

[0006] The housing has a chamber with an opening on one side. A rotatable water nozzle is installed at the upper end of the chamber. A concave water receiving groove is installed at the lower end of the chamber. An insertion port is provided on the housing above the opening of the chamber.

[0007] A panel assembly, the panel assembly including a swingable control panel, which can cover or open the socket;

[0008] A water storage component, which is detachably installed in the socket, and is equipped with a clean water pipe and a wastewater pipe;

[0009] A steam generator is installed inside the back of the housing, and the steam generator is respectively provided with a water inlet pipe, a first output pipe and a second output pipe.

[0010] The clean water pipe is connected to the inlet pipe and the first outlet pipe respectively. The clean water pipe is used to provide clean water to the steam generator and to recycle the remaining water in the steam generator.

[0011] The first output pipe is also connected to the water nozzle, so that the water nozzle rotates by the thrust of the high-temperature water;

[0012] The second output pipe is connected to the chamber and is used for steam cooking of food;

[0013] The sewage pipe is connected to the water receiving tank.

[0014] After implementing the above technical solution, the water storage component is connected to the clean water pipe and the sewage pipe respectively, and the water storage component can be disassembled and installed from the socket, so that clean water and sewage can be centrally treated. The operation is simple, and the water storage component is also a hidden structure, which effectively utilizes the box space and reduces the volume. The high temperature water generated by the steam generator can be sprayed out from the water outlet nozzle, which can drive the water outlet nozzle to rotate, so that the high temperature water can be quickly dispersed in all directions, resulting in higher cleaning efficiency. The rotation of the water outlet nozzle is passive, and the self-cleaning process is more energy-efficient.

[0015] In the aforementioned self-cleaning steam oven, the water storage component includes a water tank socket installed in the inlet. A first sleeve and a second sleeve are provided on the outside of the water tank socket. The clean water pipe is connected to the first sleeve, and the wastewater pipe is connected to the second sleeve. A water storage box is inserted and installed inside the water tank socket. The water storage box is provided with a first water storage cavity and a second water storage cavity. A first insertion tube corresponding to the first sleeve is provided on the side of the first water storage cavity, and a second insertion tube corresponding to the second sleeve is provided on the side of the second water storage cavity.

[0016] After implementing the above technical solution, after swinging the control panel to open the socket, the water storage box can be pulled out to fill or clean the first and second water storage chambers. After the water storage box is inserted into the water tank socket, the first insertion tube can be inserted into the first sleeve and the second insertion tube can be inserted into the second sleeve to connect the corresponding pipes.

[0017] In the aforementioned self-cleaning steam oven, the clean water pipe is connected to a first water distribution pipe and a second water distribution pipe. The first water distribution pipe is connected to the water inlet pipe via a first water pump. The second water distribution pipe is connected to a recovery pipe. The recovery pipe is connected to the first output pipe via a third water pump. The first output pipe is also connected to a spray connection pipe. The spray connection pipe is connected to the water outlet nozzle connector via a second water pump. The water outlet nozzle connector is connected to the water outlet nozzle.

[0018] After implementing the above technical solution, the first water pump is used to inject the clean water in the first water storage chamber into the steam generator to heat it into high-temperature water, while the third water pump is used to recover the remaining clean water in the steam generator back into the first water storage chamber for reuse. When the third water pump is turned off, the high-temperature water generated by the steam generator can be injected into the water outlet nozzle, so that the water outlet nozzle can rotate and clean in the chamber.

[0019] In the aforementioned self-cleaning steam oven, the water nozzle includes a connecting seat fixedly installed at the upper end of the cavity. The upper end of the connecting seat is provided with a spray inlet section for connecting the water nozzle pipe. A spray pipe head is snapped into the connecting seat. A limiting seat is provided at the end of the spray pipe head away from the connecting seat. A rotating head is sleeved on the spray pipe head. The rotating head has a hollow cavity, so that the limiting seat is placed in the hollow cavity and the limiting seat supports the rotating head. One end of one side of the rotating head is provided with a plurality of first spray holes, and the other end of the rotating head, relative to the position of the first spray holes, is provided with a plurality of second spray holes.

[0020] After implementing the above technical solution, high-temperature water enters the spray pipe head from the spray inlet section, and then enters the rotating head through the spray pipe head. After the high-temperature water is sprayed out from the first spray hole and the second spray hole, it drives the rotating head to rotate around the spray pipe head. At the same time, the sprayed high-temperature water is dispersed in all directions, thereby softening the stains on the inner wall of the chamber at high temperature. There is no need to set a drive component for the rotating head, thus reducing energy consumption.

[0021] In the aforementioned self-cleaning steam oven, the connecting seat has L-shaped holes with open lower ends on both sides, and the spray nozzle has protrusions on its outer wall, which are engaged in the L-shaped holes.

[0022] After implementing the above technical solution, the convex post can be disengaged from the L-hole by rotating the spray nozzle head, thereby allowing the rotating head to be disassembled and cleaned at the edges. Disassembly and assembly are convenient and quick.

[0023] In the aforementioned self-cleaning steam oven, a base plate with a downward indentation relative to the surface of the water receiving tank is provided in the middle of the water receiving tank. The lower end of the base plate is connected to a drain pipe via a drain outlet and a fourth water pump. The drain pipe is connected to a sewage pipe. A cover plate is provided on the base plate. Multiple through holes are provided on the circumferential edge of the cover plate. A screw is provided at the lower inner end of the cover plate. A nut seat corresponding to the screw is provided on the base plate. The screw and the nut seat are threadedly connected.

[0024] After implementing the above technical solution, the water receiving tank is used to receive sewage. By rotating the cover plate, the cover plate is raised and lowered on the nut seat, thereby opening or closing multiple through holes on the side, and connecting to the chassis through the through holes, so that sewage can be discharged from the sewage outlet of the chassis and recycled to the second water storage chamber by the fourth water pump.

[0025] In the aforementioned self-cleaning steam oven, mounting plates are provided on both sides of the inlet, and hinge seats are provided on both ends of the control panel. A first curved arm and a second curved arm are respectively hinged on the hinge seats. The second curved arm is hinged to the mounting plate. The first curved arms on both sides are fixed to both ends of the synchronizing rod. The synchronizing rod passes through the mounting plates on both sides. A power unit is installed on one side of the hinge seat. The power unit is used to drive the synchronizing rod to rotate.

[0026] After implementing the above technical solution, the power unit drives the synchronous rod to rotate, causing the first curved arms at both ends of the synchronous rod to swing synchronously, thereby driving the control panel to swing up and down, so that the socket is blocked or opened. The second curved arm can better support the control panel, making the swing more stable and preventing the control panel from shaking.

[0027] In the aforementioned self-cleaning steam oven, the power unit is a servo motor, a first gear is mounted on the output shaft of the servo motor, and a second gear is provided at the end of the synchronizing rod near the first gear, with the first gear and the second gear meshing with each other;

[0028] After implementing the above technical solution, the control panel can be electrically connected to the servo motor, making it easier to control the servo motor to swing the control panel to block or open the connector, making operation simpler and more convenient.

[0029] A self-cleaning method includes a self-cleaning steam oven as described above, the self-cleaning method further comprising:

[0030] The control panel is swung upwards by a servo motor to expose the socket, the water storage box is pulled out of the water tank socket and clean water is injected into the first water storage chamber. Then, the water storage box is inserted into the water tank socket and the swing button on the control panel is pressed to swing it back to its original position to complete the water storage action.

[0031] When a cleaning command is issued on the control panel, the second output pipe closes through the solenoid valve, the first water pump starts, and injects the clean water in the first water storage chamber into the steam generator to produce high-temperature water. At the same time, the second water pump starts, injecting the high-temperature water into the water outlet nozzle. The high-temperature water is sprayed out from the first and second spray holes of the water outlet nozzle, so that the water outlet nozzle rotates under the thrust of the high-temperature water and sprays the high-temperature water to the perimeter of the chamber, thereby softening the surface stains with high temperature. After a preset time, the steam generator is turned off, and then the first water pump is turned off.

[0032] Start the third and fourth water pumps to return the remaining clean water in the steam generator to the first water storage chamber via the third water pump, while the wastewater is returned to the second water storage chamber via the fourth water pump.

[0033] In the aforementioned self-cleaning method, after the wastewater is recycled to the second water storage chamber, a swing command is issued on the control panel, and the control panel is swung upward to expose the socket via a servo motor, so that the water storage box is pulled out from the water tank socket and the wastewater in the second water storage chamber is cleaned.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows: the self-cleaning steam oven can centrally process clean water and sewage, is simple and convenient to operate, and effectively utilizes the cabinet space. It does not require a circulating hot air structure, effectively reducing the volume of the self-cleaning steam oven. During the process of high-temperature water spraying out of the water nozzle, it can drive the water nozzle to rotate, so that the high-temperature water can be quickly dispersed in all directions, resulting in higher cleaning efficiency and greater energy saving compared to the self-cleaning structure of traditional steam ovens. Attached Figure Description

[0035] Figure 1 This is one of the three-dimensional structural diagrams of a self-cleaning steam oven as an example.

[0036] Figure 2 The second schematic diagram of the three-dimensional structure of the self-cleaning steam oven is shown in the embodiment.

[0037] Figure 3 This is a three-dimensional structural diagram of the water tank socket and water storage box.

[0038] Figure 4 This is a schematic diagram of the internal structure of the water tank socket.

[0039] Figure 5 This is a three-dimensional structural diagram of the housing and the water nozzle.

[0040] Figure 6 This is a three-dimensional structural diagram of the tank and water receiving trough.

[0041] Figure 7 This is a three-dimensional structural diagram of the water nozzle.

[0042] Figure 8 This is a schematic diagram of the internal structure of the water nozzle.

[0043] Figure 9 This is a schematic diagram of the connection structure between the water receiving tank and the cover plate.

[0044] Figure 10 This is a schematic diagram of the three-dimensional structure of the panel assembly.

[0045] Figure 11 This is a schematic diagram of the connection structure of the control panel.

[0046] In the diagram: 1. Box body; 2. Socket; 3. Panel assembly; 4. Water tank socket; 5. First pipe sleeve; 6. Second pipe sleeve; 7. Clean water pipe; 8. First branch water pipe; 9. Second branch water pipe; 10. Sewage pipe; 11. Water storage box; 12. First water storage chamber; 13. Second water storage chamber; 14. First insertion pipe; 15. Second insertion pipe; 16. Steam generator; 17. Inlet pipe; 18. First outlet pipe; 19. Second outlet pipe; 20. First water pump; 21. Second water pump; 22. Third water pump; 23. Spray connection pipe; 24. Recycling pipe; 25. Water outlet nozzle connection pipe; 26. Water outlet nozzle. 26. Head, 27. Water inlet, 28. Cover plate, 29. Fourth water pump, 30. Sewage pipe, 31. Spray inlet section, 32. Connecting seat, 33. Spray pipe head, 34. Limiting seat, 35. Rotating head, 36. First spray hole, 37. Hole, 38. Second spray hole, 39. L-hole, 40. Protruding column, 41. Base plate, 42. Nut seat, 43. Sewage outlet, 44. Screw, 45. Control panel, 46. Mounting plate, 47. First crank arm, 48. Second crank arm, 49. Hinge seat, 50. Synchronizing rod, 51. First gear, 52. Servo, 53. Detailed Implementation

[0047] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Combination Figures 1 to 11 The self-cleaning steam oven shown includes:

[0049] The housing 1 has a chamber with an opening on one side. A rotatable water nozzle 26 is provided at the upper end of the chamber. A concave water receiving groove 27 is provided at the lower end of the chamber. An inlet 2 is provided above the opening of the chamber.

[0050] Panel assembly 3 includes a swingable control panel 45 for covering or opening the socket 2;

[0051] A water storage component is detachably installed in the inlet 2. The water storage component is equipped with a clean water pipe 7 and a wastewater pipe 10.

[0052] A steam generator 16 is installed inside the back of the housing 1. The steam generator 16 is provided with a water inlet pipe 17, a first output pipe 18, and a second output pipe 19. A clean water pipe 7 is connected to the water inlet pipe 17 and the first output pipe 18. The clean water pipe 7 is used to provide clean water to the steam generator 16 and to recover the remaining water in the steam generator 16. The first output pipe 18 is also connected to a water outlet nozzle 26, so that the water outlet nozzle 26 rotates due to the thrust of the high-temperature water. In this embodiment, the steam generator 16 controls the heating temperature through a software program, thereby achieving the effect of heating water and generating steam.

[0053] The second output pipe 19 is connected to the chamber and is used to connect to the steam nozzle inside the chamber to realize steam cooking.

[0054] Sewage pipe 10 is connected to water receiving tank 27.

[0055] In this embodiment, the water storage component in the self-cleaning steam oven is connected to the clean water pipe 7 and the wastewater pipe 10 respectively. The water storage component can be disassembled from the inlet 2, so that clean water and wastewater can be centrally treated. The operation is simple. The water storage component is also a hidden structure, which effectively utilizes the cabinet space and reduces the volume. The high-temperature water generated by the steam generator 16 can be sprayed out from the water outlet nozzle 26. During the process, the water outlet nozzle 26 can be driven to rotate, so that the high-temperature water can be quickly dispersed in all directions, resulting in higher cleaning efficiency. The rotation of the water outlet nozzle 26 is passive, and the self-cleaning process is more energy-efficient.

[0056] Specifically, such as Figure 3 and Figure 4 As shown, the water storage assembly in this embodiment includes a water tank socket 4 installed in the socket 2. A first sleeve 5 and a second sleeve 6 are provided on the outside of the water tank socket 4. A clean water pipe 7 is connected to the first sleeve 5, and a wastewater pipe 10 is connected to the second sleeve 6. A water storage box 11 is inserted and installed inside the water tank socket 4. A first water storage chamber 12 and a second water storage chamber 13 are provided inside the water storage box 11. A first insertion tube 14 corresponding to the first sleeve 5 is provided on the side of the first water storage chamber 12, and a second insertion tube 15 corresponding to the second sleeve 6 is provided on the side of the second water storage chamber 13. After the socket 2 is opened by swinging the control panel 45, the water storage box 11 can be pulled out to fill or clean the first water storage chamber 12 and the second water storage chamber 13. After the water storage box 11 is inserted into the water tank socket 4, the first insertion tube 14 can be inserted into the first sleeve 5, and the second insertion tube 15 can be inserted into the second sleeve 6 to connect the corresponding pipes.

[0057] like Figure 2As shown, in this embodiment, the clean water pipe 7 is connected to a first water distribution pipe 8 and a second water distribution pipe 9. The first water distribution pipe 8 is connected to the inlet pipe 17 via a first water pump 20. The second water distribution pipe 9 is connected to a recovery pipe 24. The recovery pipe 24 is connected to the first output pipe 18 via a third water pump 22. The first output pipe 18 is also connected to a spray connection pipe 23. The spray connection pipe 23 is connected to the outlet nozzle connector 25 via a second water pump 21. The outlet nozzle connector 25 is connected to the outlet nozzle 26. The first water pump 20 is used to inject the clean water in the first water storage chamber 12 into the steam generator 16 for heating to form high-temperature water or steam. The third water pump 22 is used to recover the remaining clean water in the steam generator 16 back to the first water storage chamber 12 for reuse. When the third water pump 22 is off, the steam generated by the steam generator 16 can be injected into the outlet nozzle 26, causing the outlet nozzle 26 to rotate and clean within the chamber.

[0058] like Figure 7 and Figure 8 As shown, the water nozzle 26 in this embodiment includes a connecting seat 32 fixedly installed at the upper end of the chamber. The upper end of the connecting seat 32 is provided with a spray inlet section 31 for connecting the water nozzle pipe 25. A spray pipe head 33 is snapped into the connecting seat 32. A limiting seat 34 is provided at the end of the spray pipe head 33 away from the connecting seat 32. A rotating head 35 is sleeved on the spray pipe head 33. The rotating head 35 has a hollow cavity 37, so that the limiting seat 34 is placed in the hollow cavity 37 and supports the rotating head 35. Four rectangular... The first spray holes 36 are arranged in a matrix, and four second spray holes 38 are arranged in a matrix at the other end opposite to the position of the first spray holes 36. High-temperature water enters the spray pipe head 33 from the spray inlet section 31, and enters the rotating head 35 through the spray pipe head 33. After the high-temperature water is sprayed out from the first spray holes 36 and the second spray holes 38, it drives the rotating head 35 to rotate around the spray pipe head 33. At the same time, it causes the sprayed high-temperature water to spread in all directions, thereby softening the stains on the inner wall of the cavity at high temperature. There is no need to set a drive component for the rotating head 35, thus reducing energy consumption.

[0059] The limiting seat 34 is hollow inside and has water holes on the side so that the rotating head 35 can be connected to the spray pipe head 33. The limiting seat 34 can better support the rotating head 35 and prevent the rotating head 35 from falling off.

[0060] Specifically, in this embodiment, the connecting seat 32 is provided with L-holes 39 with open lower ends on both sides, and the outer wall of the spray pipe head 33 is provided with protrusions 40, which are engaged in the L-holes 39. The protrusions 40 can be disengaged from the L-holes 39 by rotating the spray pipe head 33, thereby allowing the rotating head 35 to be disassembled and cleaned at the edges. The disassembly and assembly are convenient and quick.

[0061] like Figure 9As shown, in this embodiment, a base plate 41 with a downward indentation relative to the surface of the water receiving tank 27 is provided in the middle of the water receiving tank 27. The lower end of the base plate 41 is connected to the sewage pipe 30 through the sewage outlet 43 and the fourth water pump 29. The sewage pipe 30 is connected to the sewage pipe 10. A cover plate 28 is provided on the base plate 41. Multiple through holes are provided on the circumferential edge of the cover plate 28. A screw 44 is provided at the lower inner end of the cover plate 28. A nut seat 42 corresponding to the screw 44 is provided on the base plate 41. The screw 44 and the nut seat 42 are threadedly connected. The water receiving tank 27 is used to receive sewage. By rotating the cover plate 28, the cover plate 28 is raised and lowered on the nut seat 42, thereby opening or closing the multiple through holes on the side and connecting to the base plate 41 through the through holes, so that the sewage can be discharged from the sewage outlet 43 of the base plate 41 and recycled into the second water storage chamber 13 by the fourth water pump 29.

[0062] It is worth noting that the upper surface of the cover plate 28 has two grooves, which make it easy to rotate the cover plate 28 by pressing the fingers on the grooves.

[0063] like Figure 10 and Figure 11 As shown, in this embodiment, mounting plates 46 are provided on both sides of the socket 2, and hinge seats 49 are provided on both ends of the control panel 45. A first curved arm 47 and a second curved arm 48 are respectively hinged on the hinge seats 49. The second curved arm 48 is hinged to the mounting plate 46. The first curved arms 47 on both sides are fixed to both ends of the synchronizing rod 50. The synchronizing rod 50 passes through the mounting plates 46 on both sides. A power unit is installed on one side of the hinge seat 49. The power unit is used to drive the synchronizing rod 50 to rotate. By driving the synchronizing rod 50 to rotate through the power unit, the first curved arms 47 at both ends of the synchronizing rod 50 swing synchronously, thereby driving the control panel 45 to swing up and down, so that the socket 2 is covered or opened. The second curved arm 48 can better support the control panel 45, making the swing more stable and preventing the control panel 45 from shaking.

[0064] It is worth noting that the power unit in this embodiment is a servo motor 52. A first gear 51 is mounted on the output shaft of the servo motor 52, and a second gear 53 is provided at the end of the synchronizing rod 50 near the first gear 51. The first gear 51 and the second gear 53 mesh with each other. The control panel 45 can be electrically connected to the servo motor 52, which makes it easier to control the servo motor 52 to swing the control panel 45 to cover or open the socket 2, making the operation simpler and more convenient.

[0065] It is also worth noting that the control panel 45 is equipped with a button that can start the servo motor 52. The servo motor 52 can be started by using this button, so that the servo motor 52 can drive the control panel 45 to swing up and down.

[0066] This embodiment also provides a self-cleaning method applied to the above-mentioned self-cleaning steam oven, which further includes:

[0067] The servo motor 52 drives the control panel 45 to swing upward to expose the socket 2, pulls the water storage box 11 out of the water tank socket 4 and fills the first water storage chamber 12 with clean water. Then, after inserting the water storage box 11 into the water tank socket 4, click the swing button on the control panel 45 to swing it back to its original position to complete the water storage action.

[0068] A cleaning command is issued on the control panel 45. The second output pipe 19 is closed through the solenoid valve, the first water pump 20 is started, and the clean water in the first water storage chamber 12 is injected into the steam generator 16 to generate high-temperature water. At the same time, the second water pump 21 is started, and the high-temperature water is injected into the water outlet nozzle 26. The high-temperature water is sprayed out from the first spray hole 36 and the second spray hole 38 of the water outlet nozzle 26, so that the water outlet nozzle 26 rotates under the thrust of the high-temperature water and sprays the high-temperature water to the periphery of the chamber, thereby softening the surface stains with high temperature. After a preset time, the steam generator 16 is turned off, and the first water pump 20 is turned off.

[0069] Start the third water pump 22 and the fourth water pump 29 to recover the remaining clean water in the steam generator 16 to the first water storage chamber 12 through the third water pump 22, while the sewage is recovered to the second water storage chamber 13 through the fourth water pump 29.

[0070] In the self-cleaning method described above, after the sewage is recycled to the second water storage chamber 13, a swing command is issued on the control panel 45, and the control panel 45 is swung upward to expose the socket 2 by the servo motor 52, so that the water storage box 11 is pulled out from the water tank socket 4 and the sewage in the second water storage chamber 13 is cleaned.

[0071] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A self-cleaning steam oven, characterized in that, include: The box (1) has a chamber with an opening on one side. A rotatable water nozzle (26) is provided at the upper end of the chamber. A concave water receiving groove (27) is provided at the lower end of the chamber. An insertion port (2) is provided above the opening of the chamber on the box (1). A panel assembly (3) includes a swingable control panel (45) that can cover or open the socket (2). A water storage component is detachably installed in a socket (2). The water storage component is provided with a clean water pipe (7) and a sewage pipe (10). The water storage component includes a water tank socket (4) installed in the socket (2). A first sleeve (5) and a second sleeve (6) are provided on the outside of the water tank socket (4). The clean water pipe (7) is connected to the first sleeve (5). The sewage pipe (10) is connected to the second sleeve (6). A water storage box (11) is inserted into the water tank socket (4). A first water storage cavity (12) and a second water storage cavity (13) are provided in the water storage box (11). A first insertion tube (14) corresponding to the first sleeve (5) is provided on the side of the first water storage cavity (12). A second insertion tube (15) corresponding to the second sleeve (6) is provided on the side of the second water storage cavity (13). Steam generator (16) is installed inside the back of the housing (1). The steam generator (16) is provided with a water inlet pipe (17), a first output pipe (18) and a second output pipe (19). The clean water pipe (7) is connected to the water inlet pipe (17) and the first output pipe (18) respectively. The clean water pipe (7) is used to provide clean water to the steam generator (16) and to recover the remaining water in the steam generator (16). The first output pipe (18) is also connected to the water outlet nozzle (26), so that the water outlet nozzle (26) rotates by the thrust of the high temperature water; the clean water pipe (7) is connected to the first water distribution pipe (8) and the second water distribution pipe (9), the first water distribution pipe (8) is connected to the water inlet pipe (17) through the first water pump (20), the second water distribution pipe (9) is connected to the recovery pipe (24), the recovery pipe (24) is connected to the first output pipe (18) through the third water pump (22), the first output pipe (18) is also connected to the spray connection pipe (23), the spray connection pipe (23) is connected to the water outlet nozzle connector (25) through the second water pump (21), and the water outlet nozzle connector (25) is connected to the water outlet nozzle (26); The second output pipe (19) is connected to the chamber and is used for steam cooking of food; The sewage pipe (10) is connected to the water receiving tank (27); the middle part of the water receiving tank (27) is provided with a base (41) that is concave downward relative to the surface of the water receiving tank (27); the lower end of the base (41) is connected to the sewage pipe (30) through the sewage outlet (43) and the fourth water pump (29); the sewage pipe (30) is connected to the sewage pipe (10); a cover plate (28) is provided on the base (41); multiple through holes are provided on the circumferential edge of the cover plate (28); a screw (44) is provided on the lower inner end of the cover plate (28); a nut seat (42) corresponding to the screw (44) is provided on the base (41); the screw (44) and the nut seat (42) are threadedly connected.

2. The self-cleaning steam oven according to claim 1, characterized in that, The water nozzle (26) includes a connecting seat (32) fixedly installed at the upper end of the chamber. The upper end of the connecting seat (32) is provided with a spray inlet section (31) for connecting the water nozzle pipe (25). A spray pipe head (33) is snapped into the connecting seat (32). A limiting seat (34) is provided at the end of the spray pipe head (33) away from the connecting seat (32). A rotating head (35) is sleeved on the spray pipe head (33). The rotating head (35) has a hollow cavity (37) inside, so that the limiting seat (34) is placed in the hollow cavity (37) and the limiting seat (34) supports the rotating head (35). A plurality of first spray holes (36) are provided at one end of one side of the rotating head (35), and a plurality of second spray holes (38) are provided at the other end of the other side relative to the position of the first spray holes (36).

3. A self-cleaning steam oven according to claim 2, characterized in that, The connecting seat (32) has L-holes (39) with open bottom ends on both sides, and the spray pipe head (33) has protrusions (40) on its outer wall, which are engaged in the L-holes (39).

4. A self-cleaning steam oven according to claim 1, characterized in that, Mounting plates (46) are provided on both sides of the socket (2), and hinge seats (49) are provided on both ends of the control panel (45). A first crank arm (47) and a second crank arm (48) are respectively hinged on the hinge seat (49). The second crank arm (48) is hinged on the mounting plate (46). The first crank arms (47) on both sides are fixed on both ends of the synchronizing rod (50). The synchronizing rod (50) passes through the mounting plates (46) on both sides. A power unit is installed on one side of the hinge seat (49). The power unit is used to drive the synchronizing rod (50) to rotate.

5. A self-cleaning steam oven according to claim 4, characterized in that, The power unit is a servo motor (52), and a first gear (51) is mounted on the output shaft of the servo motor (52). A second gear (53) is provided at one end of the synchronizing rod (50) near the first gear (51). The first gear (51) and the second gear (53) mesh with each other.

6. A self-cleaning method, comprising a self-cleaning steam oven as described in any one of claims 1-5, characterized in that, The self-cleaning method further includes: The control panel (45) is swung upward by the servo motor (52) to expose the socket (2), the water storage box (11) is pulled out from the water tank socket (4) and clean water is injected into the first water storage chamber (12). Then, the water storage box (11) is inserted into the water tank socket (4), and the swing button on the control panel (45) is clicked to swing it back to its original position to complete the water storage action. A cleaning command is issued on the control panel (45), the second output pipe (19) closes through the solenoid valve, the first water pump (20) starts, injects the clean water in the first water storage chamber (12) into the steam generator (16) to generate high-temperature water, and at the same time the second water pump (21) starts, injects the high-temperature water into the water outlet nozzle (26), the high-temperature water sprays out from the first spray hole (36) and the second spray hole (38) of the water outlet nozzle (26) so that the water outlet nozzle (26) rotates under the thrust of the water and sprays the high-temperature water to the periphery of the chamber, thereby softening the surface stains with high temperature. After a preset time, the steam generator (16) is turned off, and then the first water pump (20) is turned off. Start the third water pump (22) and the fourth water pump (29) to recover the remaining clean water in the steam generator (16) to the first water storage chamber (12) through the third water pump (22), while the sewage is recovered to the second water storage chamber (13) through the fourth water pump (29).

7. The self-cleaning method according to claim 6, characterized in that, After the wastewater is recycled to the second water storage chamber (13), a swing command is issued on the control panel (45). The control panel (45) is driven to swing upward to expose the socket (2) by the servo motor (52), so that the water storage box (11) is pulled out from the water tank socket (4) and the wastewater in the second water storage chamber (13) is cleaned.

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