Self-cleaning oven

Abstract

The utility model belongs to the technical field of steam ovens, and particularly relates to a self-cleaning oven which comprises an oven body, a steam system, a lighting system, a heating pipe system and a control system. The steam system comprises a boiler device which is installed on the rear side of the inner container and used for converting water into steam and providing the steam into the inner container to heat food; the boiler device comprises an air inlet pipe leading to the interior of the inner container, an air inlet pipe installation hole is formed in the inner container, the air inlet pipe is arranged in the air inlet pipe installation hole in a penetrating mode, a connecting piece is arranged at the end of the air inlet pipe, and an air inlet pipe sealing piece is arranged between the connecting piece and the side wall of the inner container and made of high-temperature-resistant materials. The connecting piece and the inner container are connected through the air inlet pipe fixing piece, so that the connecting piece enables the air inlet pipe sealing piece to abut against the inner container located on the edge of the air inlet pipe installation hole, the gap between the air inlet pipe and the inner container is sealed, air leakage of the inner container is avoided, the stability of the inner container during working is guaranteed, and normal operation of the steaming oven is guaranteed.

Description

Technical Field

[0001] This technical solution relates to the field of steam oven technology, specifically a self-cleaning oven. Background Technology

[0002] A steam oven is a traditional oven with an added steam system, which mainly consists of a water tank, an evaporator, and a series of pipes. When the user selects the steam function, water in the tank flows into or is drawn to the evaporator, which then starts working to generate steam. This steam enters the inner cavity through the pipes to heat or bake food or clean the inner wall of the cavity.

[0003] Existing steam ovens have relatively limited functions, generally only offering steam cleaning without a high-temperature self-cleaning function. Adding a high-temperature self-cleaning function to a conventional steam oven would allow the internal temperature to reach over 450 degrees Celsius during the cleaning process. However, the internal seals of existing steam ovens are made of rubber, which is prone to high-temperature aging, leading to leaks inside the oven, such as between the oven and the light source, between the oven and the air intake pipe, and between the heating element and the oven. During operation, high-temperature gases leak from these aging seals, affecting the stability of the electronic components on the outside of the oven and reducing the overall stability of the oven. Summary of the Invention

[0004] The purpose of this technical solution is to provide a self-cleaning oven, in which the air inlet pipe fixing assembly allows the connecting piece to press the air inlet pipe seal, made of high-temperature resistant material, against the inner liner located at the edge of the air inlet pipe mounting hole, thereby sealing the gap between the air inlet pipe and the inner liner and improving the problem of poor sealing between the light and the inner liner due to the aging of the rubber seal caused by the high temperature inside the inner liner.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A self-cleaning oven includes: a cabinet having at least an inner liner forming a cavity for heating food; a steam system installed in the cabinet for supplying steam to the inner liner and heating food; a lighting system installed in the cabinet for illuminating the interior of the cavity; a heating element system installed in the cabinet for heating food in the inner liner; and a control system installed in the cabinet for controlling the operation of the steam system, lighting system, and heating element system. The steam system includes a boiler assembly, which includes an air inlet pipe leading to the interior of the inner liner for supplying steam. An air inlet pipe mounting hole is provided on the inner liner, the air inlet pipe passes through the mounting hole, and a connecting piece is provided at the end of the air inlet pipe. An air inlet pipe seal is provided between the connecting piece and the side wall of the inner liner, the seal being made of a high-temperature resistant material. The connecting piece is connected to the inner liner via an air inlet pipe fixing assembly, such that the connecting piece abuts the air inlet pipe seal against the inner liner located at the edge of the air inlet pipe mounting hole, thereby sealing the gap between the air inlet pipe and the inner liner.

[0007] Preferably, the front end of the air inlet pipe extends into the inner liner and has an air outlet. The air outlet has a baffle that can block water droplets inside the air inlet pipe. The lower end of the baffle is connected to the end of the air outlet and forms an integral part. The upper end and the edge of the air outlet have a ventilation area that allows gas to pass through.

[0008] Preferably, the intake pipe fixing assembly includes an intake pipe fixing component one and an intake pipe fixing component two. The connecting piece has an intake pipe fixing component one. The end of the intake pipe fixing component one passes through the intake pipe seal and the inner liner side wall in sequence and is connected to the intake pipe fixing component two. The intake pipe fixing component one causes the connecting piece to press the intake pipe seal against one side wall of the inner liner, and causes the intake pipe fixing component two to press against the other side wall of the inner liner.

[0009] Preferably, the high-temperature resistant material is a metal or graphene.

[0010] Preferably, the boiler assembly includes a main water outlet pipe leading to the interior of the inner tank. The inner tank has a main water outlet pipe mounting hole, and the main water outlet pipe is installed in the main water outlet pipe mounting hole. The main water outlet pipe has a limiting protrusion, and a main water outlet pipe seal is provided between the limiting protrusion and one side of the inner tank. The main water outlet pipe seal is made of metal or graphene material. The main water outlet pipe is connected to a main water outlet pipe fixing component, which abuts against the other side of the inner tank. The main water outlet pipe fixing component causes the limiting protrusion to press the main water outlet pipe seal against the inner tank located at the edge of the main water outlet pipe mounting hole, thus sealing the gap between the main water outlet pipe and the inner tank.

[0011] Preferably, the boiler device includes a pressure balancing pipe leading to the interior of the inner liner. The inner liner has a top mounting hole, and the pressure balancing pipe is installed in the top mounting hole. The pressure balancing pipe is provided with a top fixing plate, and a top sealing element is provided between the top fixing plate and the side wall of the inner liner. The top sealing element is made of metal or graphene material. The top fixing plate is connected to the side wall of the inner liner through a top fixing assembly, so that the top fixing plate abuts the top sealing element against the inner liner located at the edge of the top mounting hole, thereby sealing the gap between the pressure balancing pipe and the inner liner.

[0012] Preferably, the top fixing assembly includes a top fixing member one and a top fixing member two. The top fixing piece has a top fixing member one. The end of the top fixing member one passes through the top seal and the inner liner sidewall in sequence and is connected to the top fixing member two. The top fixing member one causes the top fixing piece to press the top seal against one sidewall of the inner liner and causes the top fixing member two to press against the other sidewall of the inner liner.

[0013] Preferably, the heating tube system includes: a top heating tube located above the cavity; the rear end of the top heating tube extends out of the cavity and is connected to the control system; a top fixing plate is provided in the cavity, and a top sealing element is provided between the top fixing plate and the inner wall of the cavity. The top sealing element is made of metal or graphene material. The inner liner and the top fixing plate are connected by a top fixing assembly, so that the top fixing plate presses the top sealing element against the inner liner located at the edge of the top mounting hole, thereby sealing the gap between the top heating tube and the inner liner.

[0014] Preferably, a heat dissipation and exhaust system is installed above the inner liner and connected to the control system for heat dissipation and exhaust of the cavity. The heat dissipation and exhaust system includes an exhaust pipe with an exhaust hole and a fixing part. The exhaust hole is used to discharge steam. The inner liner has an exhaust hole and an exhaust pipe mounting hole. The exhaust hole is connected to the exhaust hole. The end of the exhaust pipe fixing part passes through the exhaust pipe mounting hole and is connected to the fixing part, thereby realizing the installation of the exhaust pipe on the inner liner. An exhaust pipe sealing part is provided between the exhaust pipe fixing part and the edge of the exhaust pipe mounting hole. The exhaust pipe sealing part is made of metal or graphene material and is used to seal the gap between the exhaust pipe fixing part and the exhaust pipe mounting hole.

[0015] Preferably, the lighting system includes a lighting lamp and a lighting lamp seal. The lighting lamp seal is disposed between the lighting lamp and the inner liner. The inner liner has a lighting lamp mounting hole. The lighting lamp has a mounting part and a sealing part. The lighting lamp seal is made of metal or graphene material. The lighting lamp seal has an abutment part one, a connecting part and an abutment part two. The abutment part one is disposed at one end of the connecting part and the abutment part two is disposed at the other end of the connecting part. When the lighting lamp is installed into the lighting lamp mounting hole of the inner liner through the mounting part, the abutment part one abuts against the edge of the lighting lamp mounting hole and the abutment part two abuts against the sealing part, thereby sealing the gap between the lighting lamp and the side wall of the lighting lamp mounting hole.

[0016] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0017] 1. The air inlet pipe designed in this technical solution is equipped with a connecting piece, and an air inlet pipe seal is provided between the connecting piece and the inner wall of the cavity. The air inlet pipe seal is made of high temperature resistant material. The connecting piece abuts the air inlet pipe seal against the inner liner located at the edge of the air inlet pipe mounting hole through the air inlet pipe fixing assembly, so as to seal the gap between the air inlet pipe and the cavity, thereby preventing air leakage of the inner liner, ensuring the stability of the inner liner during operation, and ensuring the normal operation of the steam oven.

[0018] 2. The main water outlet pipe designed in this technical solution has a limiting protrusion. A main water outlet pipe sealing element is provided between the limiting protrusion and the inner wall of the inner tank to seal the gap between the main water outlet pipe and the inner tank, thus ensuring the stability of the main water outlet pipe and the inner tank during operation.

[0019] 3. This technical solution is designed to connect the air pressure balance pipe to the top fixing plate, and a top sealing element is provided between the top fixing plate and the inner wall of the cavity, thereby ensuring the airtightness between the air pressure balance pipe and the inner liner.

[0020] 4. The lighting seal in this technical solution is made of high-temperature resistant material. This prevents the lighting seal from melting due to excessively high temperatures inside the oven. The lighting seal has three parts: abutting part one, a connecting part, and abutting part two. During installation, when the lighting seal is placed between the lighting mounting hole and the sealing part, abutting part one abuts against the edge of the lighting mounting hole, and abutting part two abuts against the sealing part, thus sealing the gap between the side wall of the lighting mounting hole and the lighting fixture. This ensures a good seal, prevents high-temperature steam from entering the lighting fixture, and ensures the normal operation of the oven and the stable operation of the lighting fixture. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this technical solution.

[0022] Figure 2 This is a cross-sectional view of the technical solution.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a cross-sectional view of the lighting lamp seal in this technical solution.

[0025] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0026] Figure 6 This is a cross-sectional view of the exhaust pipe after it has been installed into the inner liner.

[0027] Figure 7 This is an exploded view of the inner liner and heating pipe system of this technical solution.

[0028] Figure 8 This is one of the exploded views of the rear side wall of the inner liner in this technical solution.

[0029] Figure 9 This is the second exploded view of the rear side wall of the inner liner of this technical solution.

[0030] Figure 10 This is a horizontal cross-sectional view of the air intake pipe after it has been installed into the inner liner.

[0031] Figure 11 This is a vertical cross-sectional view of the air intake pipe after it has been installed into the inner liner.

[0032] Figure 12 This is a cross-sectional view of the main outlet pipe after it has been installed into the inner tank.

[0033] Figure 13 This is a cross-sectional view of the top heating element and pressure balance element after they are installed into the inner liner.

[0034] Figure 14 This is a schematic diagram of the structure of the rear side of the inner liner and the boiler unit in this technical solution.

[0035] Reference numerals: 1. Shell; 11. Door panel; 12. Inner liner; 121. Cavity; 122. Lighting mounting hole; 123. Exhaust vent 2; 124. Guide section; 125. Mounting surface; 126. Air inlet pipe mounting hole; 127. Main water outlet pipe mounting hole; 128. Top mounting hole; 129. Exhaust pipe mounting hole; 13. Switch panel; 14. Touch screen; 21. Top heating element; 22. Inner heating element; 23. Outer heating element 24. Rear heating element; 25. Fan assembly; 26. Baffle; 27. Ventilation hole; 28. Settlement platform; 29. ​​Slope; 3. Water tank assembly; 4. Boiler assembly; 41. Inlet pipe; 411. Diversion pipe; 412. First outlet pipe; 413. Second outlet pipe; 42. Boiler assembly; 43. Steam separator; 44. Main outlet pipe; 441. Limiting protrusion; 442. Main outlet pipe seal; 443. Main outlet pipe fixing... 45. Fixed component; 451. Air outlet; 452. Baffle; 453. Ventilation area; 454. Connecting piece; 455. Air inlet pipe seal; 456. Anti-detachment component two; 457. Air inlet pipe fixing component one; 458. Air inlet pipe fixing component two; 46. Air pressure balance pipe; 461. Top seal; 47. Top fixing piece; 471. Anti-detachment component four; 472. Top fixing component one; 473. Top fixing component two; 5. Lighting 51. Lamp; 52. Mounting part; 53. Sealing part; 54. Lighting lamp sealing element; 55. Connecting part; 56. Abutting part one; 57. Abutting part two; 58. Anti-slip part; 69. Heat dissipation and exhaust system; 61. Fan; 62. Heat dissipation cover plate; 63. Heat dissipation base plate; 631. Air inlet; 64. Exhaust pipe; 641. Exhaust hole one; 642. Fixing part; 643. Exhaust pipe fixing element; 644. Exhaust pipe sealing element; 65. Heat dissipation channel. Detailed Implementation

[0036] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings. See also Figures 1-14 .

[0037] Example 1:

[0038] like Figure 1As shown, a self-cleaning oven includes: a cabinet, a heating element system, a steam system, a lighting system, a heat dissipation and exhaust system 6, and a control system; the cabinet includes an inner liner 12, within which a cavity 121 for heating food is formed; the steam system is installed inside the cabinet to supply steam to the inner liner 12 and heat the food; the heating element system is installed on the inner liner 12 and is controlled by the control system to heat the food in the cavity 121; the lighting system is installed on the inner liner 12 and placed inside the cavity 121 to illuminate the interior of the cavity 121; the heat dissipation and exhaust system 6 is installed above the inner liner 12 to dissipate heat and exhaust the gas inside the inner liner 12 from the cabinet; the control system is located inside the cabinet and is used to control the operation of the steam system, the heating element system, the lighting system, and the heat dissipation and exhaust system 6.

[0039] Combination Figure 1 and Figure 2 The enclosure includes: a shell 1, a door panel 11, an inner liner 12, and a switch panel 13. The door panel 11 is hinged to the bottom front end of the shell 1. The inner liner 12 is located inside the shell 1, and a cavity 121 for heating food is formed inside the inner liner 12. The switch panel 13 is mounted on the shell 1 and located above the door panel 11. The switch panel 13 is equipped with a touch screen 14 for users to start and stop the device and select modes, etc.

[0040] Combination Figures 2 to 4 The lighting system includes a lamp 5 and a lamp seal 53. A lamp mounting hole 122 is provided on the top or side wall of the inner liner 12. The lamp 5 has a mounting part 51 and a sealing part 52. The mounting part 51 is inserted into and connected to the lamp mounting hole 122. The lamp seal 53 is installed between the inner liner 12 and the lamp 5. The lamp seal 53 is made of a high-temperature resistant material. The lamp seal 53 has an abutment part 1 55, a connecting part 54, and an abutment part 2 56. The abutment part 1 55 is provided at one end of the connecting part 54, and the abutment part 2 56 is provided at the other end of the connecting part 54. When the lamp seal 53 is fitted onto the mounting part 51 and the lamp 5 is installed into the inner liner 12, the abutment part 1 55 abuts against the edge of the lamp mounting hole 122, and the abutment part 2 56 abuts against the sealing part 52, thereby sealing the gap between the lamp 5 and the side wall of the lamp mounting hole 122.

[0041] The top or side wall of the inner liner 12 is inclined toward its center with a mounting surface 125, that is, the mounting surface 125 is inclined toward the center of the cavity 121. A lighting mounting hole 122 is opened on the mounting surface 125, and the abutting part 55 abuts against the mounting surface 125 located at the edge of the lighting mounting hole 122.

[0042] When the lighting seal 53 is used in a steam oven, the internal temperature of the inner liner 12 can reach over 450 degrees Celsius during steam baking or high-temperature self-cleaning. The high-temperature resistant material used in the lighting seal 53 has a melting point of no less than 450 degrees Celsius, preventing aging or deformation due to high temperatures. Conversely, when the lighting seal 53 is used in a regular oven, the internal temperature of the inner liner 12 can reach over 200 degrees Celsius during baking. Again, the high-temperature resistant material used in the lighting seal 53 has a melting point of no less than 200 degrees Celsius, preventing aging or deformation due to high temperatures.

[0043] The high-temperature resistant material used to make the lighting seal 53 is made of metal or graphene; furthermore, the metal material used to make the lighting seal 53 is made of stainless steel, nickel-based alloy, or cobalt-based alloy, and the lighting seal 53 is preferably made of stainless steel.

[0044] The lighting seal 53 is in the shape of a hollow frustum. The connecting part 54 forms the side wall of the hollow frustum, the first abutment part 55 forms one end of the hollow frustum, and the second abutment part 56 forms the other end of the hollow frustum. The connecting part 54 is inclined, that is, the included angle α between the connecting part 54 and the first abutment part 55 is an obtuse angle, and the included angle β between the connecting part 54 and the second abutment part 56 is an obtuse angle. This ensures the stability of the first abutment part 55 abutting against the edge of the lighting mounting hole 122 and the stability of the second abutment part 56 abutting against the sealing part 52 when the lighting seal 53 is installed between the inner liner 12 and the lighting lamp 5 and the lighting lamp mounting hole 122 are close to each other.

[0045] The end face of the first abutment part 55 is parallel to and fits against the edge of the lighting mounting hole 122, ensuring the sealing between the first abutment part 55 and the edge of the lighting mounting hole 122; the end face of the second abutment part 56 is parallel to and fits against the end face of the sealing part 52, ensuring the sealing between the second abutment part 56 and the sealing part 52.

[0046] The connecting part 54 has the characteristic of elastic deformation, that is, it is elastic. When the lighting lamp 5 is installed into the inner liner 12, the connecting part 54 undergoes elastic deformation, so that the first abutment part 55 abuts against the edge of the lighting lamp mounting hole 122, and the second abutment part 56 abuts against the end face of the sealing part 52, thereby sealing the gap between the lighting lamp mounting hole 122 and the lighting lamp 5, preventing high-temperature water vapor in the inner liner 12 from entering the lighting lamp 5 through the gap, and ensuring the normal operation of the lighting lamp 5.

[0047] The first abutment part 55, the connecting part 54, and the second abutment part 56 are integrally formed by stamping, welding, or extrusion.

[0048] The sealing part 52 is a boss provided on the outer periphery of the lighting lamp 5. The abutting part 56 abuts against the end face of the boss. The diameter of the boss is larger than the diameter of the mounting part 51, and the diameter of the boss is larger than the diameter of the lighting lamp mounting hole 122.

[0049] A threaded portion is provided on the outer wall of the mounting part 51, and the threaded portion is threadedly connected to the lighting lamp mounting hole 122.

[0050] The lighting lamp 5 has several anti-slip parts 57 arranged around its circumference. The anti-slip parts 57 are anti-slip grooves, anti-slip protrusions, anti-slip dots, or protrusions perpendicular to the rotation direction of the lighting lamp 5, which are used to help the user tighten the lighting lamp 5 onto the inner tube 12.

[0051] The lighting lamp 5 includes a housing and a light-emitting element. The housing is made of a transparent or semi-transparent material, such as transparent glass or transparent plastic. The housing has a cavity for housing the light-emitting element, which is a light bulb or a diode, etc.

[0052] Combination Figure 14 The steam system includes a water tank device 3 and a boiler device 4. The water tank device 3 is installed above the inner liner 12 to provide the water required by the liner. The boiler device 4 is installed on the rear side of the inner liner 12 to convert the water in the water tank device 3 into steam and provide it to the inner liner 12 to heat the food.

[0053] Combination Figures 7-14 The boiler unit 4 includes an inlet pipe 41 connected to the water tank unit 3, a boiler assembly 42, a steam separator 43, and a main outlet pipe 44. The steam separator 43 is provided with an air inlet pipe 45 leading to the interior of the inner tank 12. The outlet end of the inlet pipe 41 is provided with a branch pipe 411, and the branch pipe 411 is provided with a first outlet pipe 412 and a second outlet pipe 413 that are interconnected. The first outlet pipe 412 is connected to the boiler assembly 42, and the boiler assembly 42 is connected to the steam separator 43. The second outlet pipe 413 is connected to... The main water outlet pipe 44 leads to the interior of the inner tank 12; a throttle valve is provided between the water inlet pipe 41 and the branch pipe 411 to open the water inlet pipe and allow water to flow in; a water outlet valve is provided between the second water outlet pipe 413 and the main water outlet pipe 44 to open and close the water outlet pipe and allow wastewater to flow out; the boiler device mainly heats and evaporates the water entering the boiler components to form steam, and then the steam is fed into the inner tank through the steam separator to cook the food; the pressure balance pipe is used to balance the pressure inside the boiler device and plays a good protective role.

[0054] The front end of the air inlet pipe 45 extends into the cavity 121 of the inner liner 12 and has an air outlet 451. A baffle 452 is provided at the air outlet 451 to block water droplets inside the air inlet pipe 45. The lower half of the baffle 452 is integrated with the end of the air outlet 451, that is, the baffle 452 and the end of the air outlet 451 are welded, extruded or directly formed into one piece. The upper half of the baffle 452 and the edge of the air outlet 451 have a ventilation area 453 that allows gas to pass through. When steam enters the cavity of the inner liner 12 through the air inlet pipe 45, some small water droplets remaining in the steam will be blocked by the baffle 452 to prevent them from entering the inner liner 12 with the gas. After these water droplets accumulate, they can flow back to the steam separator through the air inlet pipe 45, so that the water can be reused.

[0055] Combination Figures 8-10 The inner liner 12 has an air inlet pipe mounting hole 126. The air inlet pipe 45 passes through the air inlet pipe mounting hole 126, with its front end inside the inner liner 12 and its rear end extending out of the inner liner 12 through the air inlet pipe mounting hole 126. A connecting piece 454 is provided on the outer wall of the front end of the air inlet pipe 45. The connecting piece 454 is integrally formed or welded to the air inlet pipe 45. The connecting piece 454 is connected to the inner wall of the cavity 121 of the inner liner 12 through an air inlet pipe fixing assembly. An air inlet pipe seal 455 is provided between the connecting piece 454 and the inner wall of the cavity 121. The air inlet pipe seal 455 is made of a high-temperature resistant material. The material is made of metal or graphene, preferably aluminum, and is used to seal the gap between the air intake pipe 45 and the inner liner 12. After the connecting piece 454 is installed in the inner liner 12 through the air intake pipe fixing component, the connecting piece 454 and the inner wall of the cavity 121 squeeze the air intake pipe seal 455, causing the air intake pipe seal 455 to deform, thereby sealing the gap between the connecting piece 454 and the inner wall of the cavity 121 located at the edge of the air intake pipe mounting hole 126, thus sealing the gap between the air intake pipe 45 and the air intake pipe mounting hole 126 and ensuring the sealing effect.

[0056] When the air intake pipe seal 455 is used in a steam oven, the internal temperature of the inner liner 12 of the steam oven can reach more than 450 degrees Celsius when the steam oven is steaming or baking or high-temperature self-cleaning. At this time, the melting point of the high-temperature resistant material used in the air intake pipe seal 455 is not lower than 450 degrees Celsius, so that the air intake pipe seal 455 will not age or deform due to high temperature.

[0057] When the intake pipe seal 455 is used in a regular oven, the oven is baking food and the internal temperature of the inner cavity 12 can reach more than 200 degrees Celsius. At this time, the high temperature resistant material used in the intake pipe seal 455 has a melting point of no less than 200 degrees Celsius, so that the intake pipe seal 455 will not age or deform due to high temperature.

[0058] The intake pipe fixing assembly includes an intake pipe fixing part 457 and an intake pipe fixing part 458. The intake pipe fixing part 457 is integrally stamped or welded with the connecting piece 454. The end of the intake pipe fixing part 457 passes through the intake pipe seal 455 and the side wall of the inner liner 12 in sequence and is threadedly connected to the intake pipe fixing part 458. The intake pipe fixing part 457 causes the connecting piece 454 to press the intake pipe seal 455 against one side wall of the inner liner 12, and causes the intake pipe fixing part 458 to abut against the other side wall of the inner liner 12.

[0059] Furthermore, an anti-detachment component 456 is provided between the outer wall of the inner liner 12 and the second air intake pipe fixing component 458. That is, the first air intake pipe fixing component 457 passes through the connecting piece 454, the inner liner 12, and the second anti-detachment component 456 in sequence and connects with the second air intake pipe fixing component 458, so that the second anti-detachment component 456 abuts against one edge of the air intake pipe mounting hole 126, and the connecting piece 454 makes the air intake pipe sealing component 455 abut against the other edge of the air intake pipe mounting hole 126.

[0060] Combination Figures 9-12 The main water outlet pipe 44 includes a pipe fitting and a pipe body. The pipe body is connected to the second water outlet pipe 413. The pipe fitting is made of metal material, that is, the pipe fitting of the main water outlet pipe 44 is made of stainless steel material. The pipe body can be made of metal material or plastic material.

[0061] A space is left between the main outlet pipe 44 and the outer rear wall of the inner liner 12. A main outlet pipe mounting hole 127 is provided on the inner liner 12. The front end of the main outlet pipe 44 extends into the inner liner 12, and the rear end of the main outlet pipe 44 passes through the main outlet pipe mounting hole 127 and connects to the second outlet pipe 413. A limiting protrusion 441 is provided on the portion of the main outlet pipe 44 located within the cavity 121. The diameter of the limiting protrusion 441 is larger than the diameter of the main outlet pipe mounting hole 127. The limiting protrusion 441 and the inner liner 121... A main water outlet pipe seal 442 is provided between the inner walls. The main water outlet pipe seal 442 is made of metal, specifically an aluminum sheet, a stainless steel sheet, or a graphene sealing sheet. The main water outlet pipe seal 442 is pressed against the inner wall of the inner liner 12 by the limiting protrusion 441, thereby sealing the gap between the main water outlet pipe 44 and the inner liner 12. That is, the limiting protrusion 441 and the edge of the main water outlet pipe mounting hole 127 squeeze the main water outlet pipe seal 442, causing the main water outlet pipe seal 442 to deform. The shape of the main outlet pipe 44 seals the gap between the limiting protrusion 441 and the edge of the main outlet pipe mounting hole 127, thereby sealing the gap between the outer wall of the main outlet pipe 44 and the side wall of the main outlet pipe mounting hole 127. The portion of the main outlet pipe 44 located outside the inner liner 12 is connected to a main outlet pipe fastener 443, which is a nut. The main outlet pipe fastener 443 and the main outlet pipe 44 are connected by threads, and the main outlet pipe fastener 443 abuts against the outer wall of the inner liner 12, that is, against the... At the edge of the main water outlet pipe mounting hole 127, the main water outlet pipe fixing member 443 causes the limiting protrusion 441 to press the main water outlet pipe sealing member 442 against the inner liner 12 located at the edge of the main water outlet pipe mounting hole 127. Specifically, the limiting protrusion 441 causes the main water outlet pipe sealing member 442 to abut against the edge of one side of the main water outlet pipe mounting hole 127, and the main water outlet pipe fixing member 443 to abut against the edge of the other side of the main water outlet pipe mounting hole 127, thereby realizing the installation between the main water outlet pipe 44 and the inner liner 12.

[0062] Combination Figure 8 , Figure 9 and Figure 13The diversion pipe 411 is connected to a pressure balancing pipe 46 leading to the inner tank 12 near its inlet end. The inner tank 12 has a top mounting hole 128, through which the front end of the pressure balancing pipe 46 is inserted into the inner tank 12. The portion of the pressure balancing pipe 46 inside the inner tank 12 has a top fixing piece 47. The top fixing piece 47 and the pressure balancing pipe 46 are integrally formed, welded, or stamped. The top fixing piece 47 is connected to the inner wall of the cavity 121 of the inner tank 12 through a top fixing assembly, and a top sealing element 46 is provided between the top fixing piece 47 and the inner wall of the cavity 121. 1. The top seal 461 is made of metal material, such as a graphene sealing sheet, an aluminum sealing sheet, or a stainless steel sealing sheet. The top fixing plate 47 presses the top seal 461 against the inner wall of the inner liner 12 to seal the gap between the air pressure balance pipe 46 and the inner liner 12. That is, the top sealing plate 47 and the edge of the top mounting hole 128 press the top seal 461 together, causing the top seal 461 to deform, thereby sealing the gap between the top fixing plate 47 and the edge of the top mounting hole 128, and thus sealing the inner liner 12 and the air pressure balance pipe 46.

[0063] The top fixing assembly includes a first top fixing member 472 and a second top fixing member 473. The first top fixing member 472 is integrally stamped or welded with the top fixing piece 47. The end of the first top fixing member 472 passes through the top sealing member 461 and the side wall of the inner liner 12 in sequence and is threadedly connected to the second top fixing member 473. The first top fixing member 472 causes the top fixing piece 47 to press the top sealing member 461 against one side wall of the inner liner 12, and causes the second top fixing member 473 to press against the other side wall of the inner liner 12.

[0064] Furthermore, an anti-detachment component 471 is provided between the outer side of the inner liner 12 and the second top fixing component 473. Specifically, the first top fixing component 472 passes through the top fixing piece 47, the inner liner 12, the second top fixing component 471 and is connected to the second top fixing component 473. The second top fixing component 473 causes the fourth top fixing component 471 to abut against the edge on one side of the top mounting hole 128, and the first top fixing component 472 causes the top fixing piece 47 to abut against the top sealing component 461 on the edge on the other side of the top mounting hole 128.

[0065] Combination Figures 7-9 and Figure 13 The heating tube system includes: a top heating tube 21 located above the cavity 121, an inner heating tube 22 and an outer heating tube 23 located below the inner liner 12, and a back heating tube 24 located on the inner wall of the cavity 121. The inner heating tube 22, the outer heating tube 23 and the back heating tube 24 are electrically connected to the control system.

[0066] The rear end of the top heating tube 21 extends from the cavity 121 and connects to the control system; a top fixing plate 47 is provided inside the cavity 121, and the top heating tube 21 and the top fixing plate 47 are welded together or integrally formed, and a top sealing element 461 is provided between the top fixing plate 47 and the inner wall of the cavity 121. The top sealing element 461 is made of metal material, such as a graphene sealing plate, an aluminum sealing plate, or a stainless steel sealing plate. The inner liner 12 is connected to the top fixing plate 47 through a top fixing assembly, so that the top fixing plate 47 presses the top sealing element 461 against the inner liner 12 located at the edge of the top mounting hole 128, that is, through the top... The fixing plate 47 presses the top seal 461 against the inner wall of the inner liner 12 to seal the gap between the top heating tube 21 and the inner liner 12. Both the top heating tube 21 and the pressure balance tube 46 are connected and fixed to the inside of the inner liner 12 through the top fixing plate 47 and are sealed through the top seal 461. Alternatively, the top heating tube 21 and the pressure balance tube 46 can be designed separately, that is, not set on the same top fixing plate 47. When the separate design is adopted, the top heating tube 21 and the pressure balance tube 46 are installed into different top mounting holes 128 on the inner liner 12 through their respective top fixing plates 47 and top seals 461.

[0067] Combination Figure 7 and Figure 8 A fan assembly 25 is provided on the inner liner 12 at the middle of the back heating pipe 24. A baffle 26 is provided on the outer side of the fan assembly 25 and the back heating pipe 24. The baffle 26 is fixed on the inner liner 12 and has several ventilation holes 27. The fan assembly 25 includes a motor and a fan. The motor is located on the rear outer wall of the inner liner 12. The drive end of the motor extends into the inner liner 12 and is connected to the fan. The fan is located inside the inner liner 12.

[0068] The bottom of the inner liner 12 is recessed to form a recessed platform 28. A slope 29 extends from the recessed platform 28 to the bottom edge of the inner liner 12. An inner heating pipe 22 is located at the bottom of the recessed platform 28, and an outer heating pipe 23 is located at the bottom of the slope 29. The slope 29 slopes downwards towards the recessed platform 28 to facilitate the collection of condensate into the platform 28. The inner heating pipe 22, located at the bottom of the platform 28, heats the condensate collected therein, generating steam to heat food, thus ensuring full utilization of the condensate. The outer heating pipe 23 is located around the inner heating pipe 22, i.e., at the bottom of the slope 29. The inner liner 12 includes a top surface, a left side surface, a right side surface, a bottom surface, and a rear side surface. The left side surface, right side surface, and bottom surface are integrally formed. The top surface covers the left and right side surfaces, and the rear side surface is connected to the top, left, and right side surfaces.

[0069] The inner heating tube 22, the outer heating tube 23, and the top heating tube 21 are connected to an electronic control board installed on the upper side of the inner liner 12. They can be controlled individually or in combination by the electronic control board. The power of the outer heating tube 23 is greater than that of the inner heating tube 22. When baking is required in a normal heating mode, the outer heating tube can be used alone. When steaming or boiling food, the inner heating tube can be used to heat and dry the bottom surface moisture because condensation is likely to occur. Alternatively, for some foods that require low-temperature auxiliary baking, the inner heating tube can be used for auxiliary baking.

[0070] A fixing plate is provided at the bottom of the inner liner 12, forming a lower heating area between the fixing plate and the inner liner 12. A snap-fit ​​edge is formed on the front side of the fixing plate, and a snap-fit ​​groove is formed on the bottom of the inner liner 12. The snap-fit ​​edge is snapped into the snap-fit ​​groove. A bottom fixing piece for fixing the inner heating tube 22 and the outer heating tube 23 is provided on the rear side of the fixing plate. A top fixing piece 47 for fixing the top heating tube 21 is provided on the inner side wall of the top of the inner liner 12.

[0071] Combination Figure 2 , Figure 5 and Figure 6 The heat dissipation and exhaust system 6 includes: a fan 61 disposed above the inner liner 12 and between the outer shell 1, a heat dissipation cover 62, a heat dissipation base plate 63, and an exhaust pipe 64. A heat dissipation channel 65 is formed between the heat dissipation cover 62 and the heat dissipation base plate 63.

[0072] A through hole is provided in the middle of the heat dissipation cover 62, and a fan bracket is provided on the through hole. Several ventilation holes are provided on the fan bracket. When the fan rotates, it can drive the surrounding cold air into the ventilation holes to cool the hot air. A motor bracket is provided in the middle of the fan bracket, and a fan motor is installed on the motor bracket. The output shaft of the fan motor passes through the fan bracket and is connected to the fan 61. The fan motor drives the fan 61 to rotate. The heat dissipation base plate 63 is located below the fan 61 and has an air inlet 631. A door panel bracket for installing the door panel 11 is provided on the front side of the inner liner 12. An air vent is provided on the upper side of the door panel bracket above the door panel 11. The air vent is connected to the heat dissipation channel 65. The hot air generated when the oven is working enters the heat dissipation channel 65 through the air inlet 631 for cooling and is discharged from the air vent. The exhaust pipe 64 is provided with an exhaust hole 641 and a fixing part 642. The steam discharged from the exhaust hole 641 is discharged from the heat dissipation channel 65 through the air inlet 631. The inner liner 12 is provided with an exhaust hole 123 and an exhaust pipe mounting hole 129. The edge of the exhaust hole 123 extends outward toward the inner liner 12 to form a guide part. 124. The guide part 124 is inserted into the exhaust hole 641. The end of the exhaust pipe fixing part 643 passes through the exhaust pipe mounting hole 129 and is connected to the fixing part 642, thereby realizing the installation of the exhaust pipe 64 onto the inner liner 12. The exhaust pipe fixing part 643 is a screw, bolt, or pin, and the rear end of the exhaust pipe fixing part 643 has an anti-detachment protrusion. An exhaust pipe sealing part 644 is provided between the anti-detachment protrusion and the edge of the exhaust pipe mounting hole 129. The exhaust pipe sealing part 644 is made of metal or graphene material, and the exhaust pipe sealing part 644 is an aluminum sheet. A stainless steel sheet is used to seal the gap between the exhaust pipe fixing member 643 and the exhaust pipe mounting hole 129. The exhaust pipe 64 is located on the outside of the inner liner 12. The end of the exhaust pipe fixing member 643 extends out of the inner liner 12 through the exhaust pipe mounting hole 129 and is threaded or interference-fitted to the fixing part 642. The anti-detachment protrusion is located inside the inner liner 12 and abuts the exhaust pipe sealing member 644 against the inner wall of the inner liner 12, specifically against the edge of the exhaust pipe mounting hole 129, to prevent gas leakage between the inner liner 12 and the shell 1.

[0073] The specific structure of the water tank device 3 is described in Chinese Patent CN202021452197.X, and will not be repeated here. The water outlet of the water tank device 3 is connected to the water inlet pipe 41.

[0074] The inner liner 12 has guide rail brackets and fixing blocks for mounting the guide rail brackets on its two inner side walls. The guide rail brackets have slots, and the guide rail brackets are moved to lock the slots into the fixing blocks to achieve the installation of the guide rail brackets. The guide rail brackets include several horizontally arranged crossbars, a front vertical bar and a rear vertical bar arranged longitudinally, and a front connecting rod and a rear connecting rod for connecting the fixing blocks. The crossbars are set between the front vertical bar and the rear vertical bar to form a track supporting the tray baking rack. The front connecting rod is set close to the front vertical bar, and the rear connecting rod is set close to the rear vertical bar. The front connecting rod and the rear connecting rod have slots in the middle. There are an even number of crossbars, and a track is formed between every two crossbars for the tray to slide into.

[0075] The self-cleaning oven designed in this technical solution uses a heating element system to adjust the temperature inside the cavity 121 to 120 degrees Celsius, while simultaneously supplying steam to the cavity 121 via a boiler device 4. The operating time is two hours and thirty minutes to three hours and thirty minutes. This combination of temperature and steam is used to carbonize and clean the grease stains adhering to the inside of the inner liner 12. Alternatively, the heating element system can be used to adjust the temperature inside the cavity 121 to 450 degrees Celsius, with an operating time of two hours and thirty minutes to three hours and thirty minutes, employing the aforementioned high temperature... The oil stains adhering to the inside of the inner liner 12 are carbonized and cleaned; or, the temperature inside the cavity 121 is adjusted to 450 degrees Celsius through the heating pipe system, and steam is supplied to the cavity 121 through the boiler device 4. The working time is two hours and thirty minutes to three hours and thirty minutes. The combination of high temperature of 450 degrees Celsius and steam is used to carbonize and clean the oil stains adhering to the inside of the inner liner 12. After the grease adhering to the inner liner 12 is carbonized, the inner wall of the inner liner 12 is wiped manually to further clean it.

[0076] Example 2:

[0077] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0078] The first abutment 55 and the second abutment 56 have the characteristic of elastic deformation, that is, they are elastic. When the lighting lamp 5 is installed into the inner tube 12, both the first abutment 55 and the second abutment 56 undergo elastic deformation, so that the first abutment 55 abuts against the edge of the lighting lamp mounting hole 122, and the second abutment 56 abuts against the end face of the sealing part 52.

[0079] Example 3:

[0080] The design scheme of this embodiment is basically the same as that of Embodiment 1 or Embodiment 2, except that: the first abutment 55, the connecting part 54 and the second abutment 56 are all elastic. When the lighting lamp 5 is installed into the inner liner 12, the first abutment 55, the connecting part 54 and the second abutment 56 all undergo elastic deformation, so that the first abutment 55 abuts against the edge of the lighting lamp mounting hole 122 and the second abutment 56 abuts against the end face of the sealing part 52.

[0081] Example 4:

[0082] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0083] The intake pipe 45 is provided with a threaded portion, and the intake pipe fixing assembly includes a nut. The intake pipe fixing assembly is threadedly connected to the threaded portion of the intake pipe 45, so that the intake pipe fixing assembly and the connecting piece 454 are respectively located on both sides of the inner liner 12 side wall, so that the connecting piece 454 abuts the intake pipe seal 455 against one side edge of the intake pipe mounting hole 126, and the intake pipe fixing assembly abuts against the other side edge of the intake pipe mounting hole 126.

[0084] Example 5:

[0085] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0086] The air pressure balance tube 46 is provided with a threaded part, and the top fixing component includes a nut. The top fixing component is threadedly connected to the threaded part of the air pressure balance tube 46, so that the top fixing component and the top fixing piece 47 are located on the two sides of the inner liner 12 respectively, so that the top fixing piece 47 abuts the top seal 461 against one side edge of the top mounting hole 128, and the top fixing component abuts against the other side edge of the top mounting hole 128.

[0087] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning oven, characterized by, include: The box has at least an inner liner (12) and a cavity (121) for heating food is formed inside the inner liner (12); A steam system, installed inside the box, is used to supply steam to the inner liner (12) and heat the food; A lighting system, installed inside the housing, is used to illuminate the interior of the cavity (121); A heating element system, installed inside the enclosure, is used to heat the food inside the inner liner (12); and A control system, installed inside the enclosure, is used to control the operation of the steam system, lighting system, and heating pipe system. The steam system includes a boiler device (4), which includes an air inlet pipe (45) leading to the interior of the inner liner (12) for supplying steam. The inner liner (12) has an air inlet pipe mounting hole (126), the air inlet pipe (45) passes through the air inlet pipe mounting hole (126), and the end of the air inlet pipe (45) is provided with a connecting piece (454). An air inlet pipe seal (455) is provided between the connecting piece (454) and the side wall of the inner liner (12). The air inlet pipe seal (455) is made of high temperature resistant material. The connecting piece (454) and the inner liner (12) are connected by an air inlet pipe fixing assembly, so that the connecting piece (454) presses the air inlet pipe seal (455) against the inner liner (12) located at the edge of the air inlet pipe mounting hole (126), thereby sealing the gap between the air inlet pipe (45) and the inner liner (12).

2. The self-cleaning oven according to claim 1, characterized in that: The front end of the air inlet pipe (45) extends into the inner liner (12) and has an air outlet (451). A baffle (452) is provided at the air outlet (451) to block water droplets inside the air inlet pipe (45). The lower end of the baffle (452) is connected to the end of the air outlet (451) and forms an integral part. The upper end and the edge of the air outlet (451) have a ventilation area (453) that allows gas to pass through.

3. A self-cleaning oven according to claim 1, characterized in that: The intake pipe fixing assembly includes an intake pipe fixing component one (457) and an intake pipe fixing component two (458). The connecting piece (454) has the intake pipe fixing component one (457). The end of the intake pipe fixing component one (457) passes through the intake pipe seal (455) and the side wall of the inner liner (12) in sequence and is connected to the intake pipe fixing component two (458). The intake pipe fixing component one (457) causes the connecting piece (454) to press the intake pipe seal (455) against one side wall of the inner liner (12) and causes the intake pipe fixing component two (458) to press against the other side wall of the inner liner (12).

4. A self-cleaning oven according to claim 1, characterized in that: The high-temperature resistant materials are either metallic or graphene.

5. A self-cleaning oven according to claim 1, characterized in that: The boiler assembly (4) includes a main water outlet pipe (44) leading to the interior of the inner tank (12). The inner tank (12) has a main water outlet pipe mounting hole (127). The main water outlet pipe (44) is installed in the main water outlet pipe mounting hole (127). The main water outlet pipe (44) has a limiting protrusion (441). A main water outlet pipe sealing element (442) is provided between the limiting protrusion (441) and one side of the inner tank (12). Made of metal or graphene, the main water outlet pipe (44) is connected to a main water outlet pipe fixing member (443). The main water outlet pipe fixing member (443) abuts against the other side of the inner liner (12). The main water outlet pipe fixing member (443) causes the limiting protrusion (441) to press the main water outlet pipe sealing member (442) against the inner liner (12) located at the edge of the main water outlet pipe mounting hole (127); used to seal the gap between the main water outlet pipe (44) and the inner liner (12).

6. A self-cleaning oven according to claim 1, characterized in that: The boiler device (4) includes a pressure balancing pipe (46) leading to the interior of the inner liner (12). The inner liner (12) has a top mounting hole (128), and the pressure balancing pipe (46) is installed in the top mounting hole (128). The pressure balancing pipe (46) is provided with a top fixing piece (47). A top sealing element (461) is provided between the top fixing piece (47) and the side wall of the inner liner (12). The top sealing element (461) is made of metal or graphene. The top fixing piece (47) is connected to the side wall of the inner liner (12) through a top fixing assembly, so that the top fixing piece (47) presses the top sealing element (461) against the inner liner (12) located at the edge of the top mounting hole (128), thereby sealing the gap between the pressure balancing pipe (46) and the inner liner (12).

7. A self-cleaning oven according to claim 6, characterized in that: The top fixing assembly includes a top fixing member one (472) and a top fixing member two (473). The top fixing piece (47) has the top fixing member one (472). The end of the top fixing member one (472) passes through the top seal (461) and the side wall of the inner liner (12) in sequence and is connected to the top fixing member two (473). The top fixing member one (472) causes the top fixing piece (47) to press the top seal (461) against one side wall of the inner liner (12) and causes the top fixing member two (473) to press against the other side wall of the inner liner (12).

8. A self-cleaning oven according to claim 1 or 6 or 7, characterized in that, Also includes: The heating tube system includes: a top heating tube (21) located above the cavity (121); the rear end of the top heating tube (21) extends out of the cavity (121) and is connected to the control system; a top fixing plate (47) is provided inside the cavity (121), and a top sealing member (461) is provided between the top fixing plate (47) and the inner wall of the cavity (121). The top sealing member (461) is made of metal or graphene material. The inner liner (12) is connected to the top fixing plate (47) through a top fixing assembly, so that the top fixing plate (47) presses the top sealing member (461) against the inner liner (12) located at the edge of the top mounting hole (128), thereby sealing the gap between the top heating tube (21) and the inner liner (12).

9. The self-cleaning oven of claim 1, wherein, Also includes: A heat dissipation and exhaust system (6) is installed above the inner liner (12) and connected to the control system for heat dissipation and exhaust of the cavity (121); The heat dissipation and exhaust system (6) includes: an exhaust pipe (64), an exhaust hole (641) and a fixing part (642) on the exhaust pipe (64), the exhaust hole (641) is used to discharge steam, the inner liner (12) is provided with an exhaust hole (123) and an exhaust pipe mounting hole (129), the exhaust hole (641) and the exhaust hole (123) are connected, the end of the exhaust pipe fixing part (643) passes through the exhaust pipe mounting hole (129) and is connected to the fixing part (642), thereby realizing the installation of the exhaust pipe (64) on the inner liner (12), and an exhaust pipe sealing part (644) is provided between the exhaust pipe fixing part (643) and the edge of the exhaust pipe mounting hole (129), the exhaust pipe sealing part (644) is made of metal material or graphene material, and is used to seal the gap between the exhaust pipe fixing part (643) and the exhaust pipe mounting hole (129).

10. A self-cleaning oven according to claim 1, characterized in that: The lighting system includes a lighting lamp (5) and a lighting lamp seal (53). The lighting lamp seal (53) is disposed between the lighting lamp (5) and the inner liner (12). The inner liner (12) has a lighting lamp mounting hole (122). The lighting lamp (5) has a mounting part (51) and a sealing part (52). The lighting lamp seal (53) is made of metal or graphene material. The lighting lamp seal (53) has an abutment part one (55), a connecting part (54) and an abutment part two (56). The abutment part one (55) is disposed at one end of the connecting part (54), and the abutment part two (56) is disposed at the other end of the connecting part (54). When the lighting lamp (5) is installed into the lighting lamp mounting hole (122) of the inner liner (12) through the mounting part (51), the first abutment part (55) abuts against the edge of the lighting lamp mounting hole (122), and the second abutment part (56) abuts against the sealing part (52), thereby sealing the gap between the lighting lamp (5) and the side wall of the lighting lamp mounting hole (122).

Images