Intelligent steaming oven

Abstract

The invention discloses an intelligent steaming and baking oven, and relates to the technical field of commercial kitchen ware equipment, the intelligent steaming and baking oven comprises a box body, a glass door, a control panel, a bottom decoration coaming, a cold air filter box, a water spraying gun, an exhaust port and an air inlet, the box body is internally provided with an inner container, a boiler, a moisture exhaust valve, a fan, an electrical element, a cooling fan, a water inlet valve assembly and a boiler drainage pump; the liner is provided with an air duct baffle, a centrifugal wind wheel and an electric heating element, and the air duct baffle is matched with the liner in shape to form a hot air circulation channel; the inner container is an area for cooking food, the boiler is used for generating steam needed by a steaming mode, the steam enters the inner container through a pipeline on the upper portion of the boiler, the moisture exhaust valve is opened to exhaust moisture in the inner container, the cooling fan conducts heat dissipation on electrical elements, and the boiler drainage pump is controlled to exhaust water in the boiler according to a program. The electric heating element generates heat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of commercial kitchen equipment, and particularly relates to an intelligent steaming oven. BACKGROUND

[0002] The intelligent steaming oven integrates steaming, baking, frying, boiling and other functions, meets the requirements of people for different cooking effects, and is a development trend of future commercial kitchen equipment. At present, some steaming ovens on the market also adopt hot air circulation, but the effect is not good, the cooked food is not uniform, the meat needle detection point is less, the moisture is not completely removed, there is no discharge limitation, the inner container is deformed, cleaning and maintenance are cumbersome, there are health dead angles, the steam volume is insufficient, the inner container lamp lighting effect is not good and is easy to be damaged.

[0003] The existing steaming oven on the market has poor hot air circulation effect due to the size and shape of the inner container of the air duct baffle. The meat needle basically has only a single detection point, and the cooking effect is not good due to the improper insertion of the meat needle, and even the food is not cooked. The natural moisture removal is not thorough. There is no discharge control system, the kitchen steam is high, the drainage temperature is high, there is no separate inner container inner and outer pressure balance channel, the inner container is easy to be deformed under pressure, the cleaning and descaling are separately performed, water and electricity are wasted, and the operation is complex. The halogen lighting lamp is installed in the inner container, the lighting effect is not good, the cleaning is easy to enter water, and the equipment safety is affected. SUMMARY

[0004] The present application aims to provide an intelligent steaming oven to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: the intelligent steaming oven comprises a box body, a glass door, a control panel, a bottom decorative coaming, a cold air filter box, a water gun, an exhaust port, an air inlet, an inner container, a boiler, a moisture removal valve, a fan, an electrical element, a heat dissipation fan, a water inlet valve assembly and a boiler drainage pump arranged in the box body, the inner container is provided with an air duct baffle, a centrifugal fan wheel and an electric heating element, the air duct baffle is matched with the shape of the inner container to form a hot air circulation channel, the centrifugal fan wheel is connected with the fan, and the hot air is uniformly distributed in the inner container through the flow guiding effect, the inner container is provided with a heating chamber, a food carrier and left and right disc racks, and each corner of the box body is provided with a supporting leg.

[0006] The inner container is a region for cooking food, the boiler is used for generating steam required in the steaming mode, the steam enters the inner container through the pipeline at the upper portion of the inner container, the moisture removal valve can remove the moisture in the inner container, the heat dissipation fan dissipates heat of the electrical element, the boiler drainage pump removes the water in the boiler according to the program control, the electric heating element generates heat, the fan drives the centrifugal fan wheel to rotate to form hot air, the hot air is blown into the inner container through the flow guiding around the air duct baffle, and the hot air acts on the food on the food carrier to make the food cooking reach the expected effect, the cold air after passing through the food is sucked back to the middle of the centrifugal fan wheel, and then the cold air is heated by the electric heating element to form the hot air circulation.

[0007] Further, the heating chamber is provided with a meat needle with six built-in temperature detection points, which detects the internal temperature of the food through multiple points and controls the cooking program according to the lowest temperature value detected.

[0008] The meat needle with six temperature detection points in the heating chamber is used to detect the internal temperature of the food through multiple points, and the cooking is controlled according to the lowest temperature value detected, so that even if the meat needle is not inserted completely, it will not affect the cooking effect.

[0009] Further, the box body is provided with a forced dehumidification system, including a dehumidification valve and a negative pressure structure at the back of the centrifugal fan; when the dehumidification valve is opened, dry air is sucked into the inner container through negative pressure, and moisture is discharged into the upper water tank through the bottom outlet, and finally discharged from the exhaust port.

[0010] When it is necessary to remove excess moisture in the inner container, the program controls the dehumidification valve to open, and the blades at the back of the centrifugal fan form negative pressure at the back when rotating, thereby sucking dry air from the outside into the heating chamber, and then discharging the moisture in the heating chamber to the upper water tank through the bottom outlet, and finally discharging to the outside of the equipment from the exhaust port.

[0011] Further, the bottom of the box body is provided with a condensation cooling system, including a temperature probe, a condensation water inlet and a spraying device; when the detected drainage temperature exceeds the set value, the condensation water inlet sprays cold water to reduce the steam discharge temperature and the drainage temperature.

[0012] When cooking in steam mode, excess steam will be discharged to the outside of the equipment from the exhaust port, and long-term use of steam mode will make the kitchen misty. If the temperature of the excess water discharged from the drain pipe is too high, it is not conducive to the survival of microorganisms in the sewer; the program sets a certain temperature, and when the temperature probe detects that the temperature exceeds the set value, cold water forms a spray through the condensation water inlet, and the condensed water vapor reduces the drainage temperature to protect microorganisms.

[0013] Further, the bottom of the box body adopts a double-layer water tank structure, including an upper water tank and a lower water tank, the upper water tank is communicated with the inner container to balance the air pressure, and the lower water tank prevents water from flowing back to the inner container through the overflow port and the safety overflow port; the lower water tank is connected to the drain box through the cleaning drain pump, the drain box is provided with a drain pipe and a safety overflow channel to ensure that the water is directly discharged to the outside of the equipment.

[0014] The water in the heating chamber flows into the upper water tank through the bottom outlet of the heating chamber, and then flows into the lower water tank from the outlet of the upper water tank, is pumped to the drainage box by the cleaning drainage pump, and then flows away from the drain pipe; the upper water tank serves as a transition for the inner container to communicate with the atmosphere, so that the inner container and the atmosphere do not generate a pressure difference; the lower water tank is provided with an overflow port, and the excess water flows to the drainage box from the overflow port and then flows away from the drain pipe. The lower water tank is also provided with a safety overflow port, so that when the drain pipe or the overflow pipe is blocked, the excess water will flow out from the safety overflow port, so as not to flow back into the inner container, thereby ensuring food hygiene, and the water directly flows to the table surface on which the device is placed, thereby facilitating timely maintenance.

[0015] Further, the box body is provided with a cleaning and maintenance system, which comprises a descaling pump, a cleaning circulating pump, a cleaning drainage pump, a water inlet interface, a descaling box and a water gun. The outlet of the cleaning circulating pump is provided with a cleaning water inlet pipe, which communicates with the inner container. The heating chamber is provided with a drainage filter screen and a descaling box. The cleaning circulating pump pumps the water in the lower water tank into the inner container for automatic cleaning, and the descaling pump injects the descaling agent in the descaling box into the boiler for descaling. The cleaning and maintenance system further comprises a control program, which automatically controls the cleaning circulating pump and the descaling pump to operate according to the cleaning mode selected by the user, so that cleaning and descaling are performed synchronously.

[0016] When the cleaning and maintenance device is cleaned, appropriate programs are selected on the control panel according to the dirt condition of the device. The door is opened for cooling or a cleaning sheet is placed in the drainage filter screen according to the prompt, a descaling sheet is placed in the descaling box, the lower water tank is filled with water through the water inlet valve, the cleaning circulating pump pumps the water in the lower water tank into the heating chamber for cleaning, the descaling pump pumps the descaling agent dissolved in the descaling box into the boiler for descaling, and the inner container and the boiler are cleaned several times by the cleaning circulating pump. If there are some stubborn stains in the inner container, the water gun can be used for flushing.

[0017] Further, the boiler is provided with a water level probe, an over-temperature protection device and a boiler drainage pump. The water level probe detects the water level of the boiler in real time and controls water replenishment through the flow meter. The over-temperature protection device cuts off the heating when the water is lacking. The boiler drainage pump is used for drainage when cleaning and starting the cooling machine.

[0018] Under the program control, the water inlet valve of the boiler is opened to fill water. When the water level probe detects the water level, 0.5L of water is controlled to be added through the flow meter on the waterway. The electric heating element of the boiler heats the water to generate steam, which is sent into the heating chamber through the pipeline on the upper part of the boiler to cook food. The water in the boiler is slowly consumed by continuous heating. When the water level drops below the water level probe, the water level probe detects the lack of water and feeds back to the computer board to control water replenishment, so as to form a cycle. The over-temperature protection device is provided to ensure the safety of the boiler when the water is lacking due to some reasons. The boiler drainage pump is provided to drain water when cleaning and starting the cooling machine, so as to ensure the hygiene of the boiler.

[0019] Further, the glass door comprises three layers of tempered glass, the three layers of tempered glass are connected to the box through upper and lower door hinges, the glass door is provided with a safety door lock, an LED illuminating lamp, an in-door water receiving box and a water guiding mechanism; the safety door lock of the glass door has a two-stage opening structure, a first stage opening gap releases steam, and a second stage complete opening is used for accessing food; the LED illuminating lamp is installed on the inner side of the glass door, and light is emitted towards the inner container.

[0020] The intelligent steaming and baking oven is provided with a glass door, which has three layers of inner, middle and outer tempered glass, wherein the inner layer glass is further coated with a heat reflecting coating, which better insulates the heat in the inner container, reduces the surface temperature of the equipment, and also has the effects of heat preservation and energy saving. The glass window can observe the cooking process of food at any time. The right side of the glass door is connected to the box through upper and lower door hinges, and the left side is provided with a safety door lock. The safety door lock has two stages. When the first stage is opened, a gap is first opened, and the hot air and steam can be quickly dissipated. The second stage is completely opened to access food, so that the operator will not be injured by the sudden outburst of high temperature. LED illuminating lamps are installed on the left and right sides of the inside of the glass door, and the light is emitted towards the heating chamber for better observation of the cooking effect. A in-door water receiving box is arranged below the glass door for receiving the water flowing down from the inner layer glass, so that the water will not flow to the ground. The water is then guided to the box by the water guiding mechanism and finally discharged outside the equipment.

[0021] Further, a cooling assembly is arranged in the exhaust port, which can automatically adjust the cooling efficiency according to the temperature of the steam. The cooling assembly comprises a liquid distribution ring and an adjusting ring. The liquid distribution ring is tightly connected with the outer wall of the exhaust port, and the inner cavity of the liquid distribution ring is connected with a cold water source. The adjusting ring is in communication with the inner cavity of the liquid distribution ring, and the adjusting ring is rotatably connected with the outer wall of the exhaust port. The adjusting ring is provided with a flow hole, and the exhaust port is provided with a spray hole. The spray hole is in communication with the flow hole, and the spray hole is used for spraying cold water mist into the exhaust port.

[0022] In order to prevent the temperature of the steam flowing out of the exhaust port from being too high, the cooling assembly is used to cool the steam. When the temperature probe detects that the temperature of the steam is relatively high, the cold water flows into the adjusting ring through the liquid distribution ring, and then flows into the exhaust port through the flow hole and the spray hole in sequence to cool the steam. The spray hole is arranged along the inner wall of the exhaust port, and a plurality of spray holes are arranged along the inner wall of the exhaust port, which can increase the contact area between the cold water mist and the steam, thereby improving the cooling efficiency.

[0023] Further, an arc-shaped groove is arranged in the exhaust port, and an arc-shaped sliding block is arranged on the adjusting ring. The arc-shaped sliding block is slidably connected with the arc-shaped groove. Support springs and electromagnets are arranged on the two sides of the arc-shaped sliding block, respectively. The arc-shaped sliding block is made of ferromagnetic material. The flow hole and the spray hole are arranged alternately. The electromagnets can automatically adjust the position of the adjusting ring according to the temperature of the steam detected by the temperature probe.

[0024] When the steam temperature is low, the electromagnet does not work, the flow cross section formed between the staggered flow holes and the injection holes is small, the amount of cooling water flowing into the exhaust port is small, and the cooling efficiency matches the steam temperature; when the temperature probe detects that the steam temperature rises, the current transmitted to the electromagnet is increased, under the action of the magnetic force, the arc-shaped slider of ferromagnetic material is driven to deflect a certain distance along the arc-shaped groove, the supporting spring is stretched under stress, the adjusting ring deflects a certain angle along the outer wall of the exhaust port, the overlapping area of the flow holes and the injection holes is increased, the amount of cold water flowing in is increased, thereby improving the cooling efficiency, and the higher the temperature, the greater the magnetic force of the electromagnet, the greater the deflection angle of the arc-shaped slider, the greater the overlapping area of the flow holes and the injection holes, and the greater the amount of cold water flowing in, that is, the amount of cold water injected into the exhaust port is automatically adjusted according to the temperature of the steam, and the cooling efficiency is automatically adjusted according to the temperature of the steam.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] 1、The shape of the air duct baffle and the inner container is matched to form a hot air circulation channel; through the flow guiding effect, the hot air is uniformly distributed in the inner container, forming high-efficiency hot air circulation, the temperature of the inner container is uniform, the cooking effect is improved, and energy consumption is reduced; through multi-point detection of the internal temperature of the food, it is ensured that the preset temperature can be reached everywhere in the food; the excess moisture affecting the cooking effect is automatically removed; the discharge condensation cooling system ensures that the kitchen will not be filled with a lot of steam, and the beneficial microorganisms in the sewer are protected; the double-layer water tank structure ensures that the channel connecting the inner container and the atmosphere cannot be blocked, and the air pressure balance is maintained; one-key starting of water circulation automatically cleans the inner container, the scale pump synchronously cleans the boiler scale, and manual brushing is saved; the three-layer glass door has good heat insulation, cooling and energy saving, the LED lamp has good lighting effect, long service life and low energy consumption.

[0027] 2、The position of the arc-shaped slider is automatically controlled by the electromagnet according to the steam temperature, when the temperature probe detects that the steam temperature rises, the current transmitted to the electromagnet is increased, the arc-shaped slider is driven to deflect a certain distance along the arc-shaped groove, the adjusting ring deflects a certain angle along the outer wall of the exhaust port, the overlapping area of the flow holes and the injection holes is increased, the amount of cold water flowing in is increased, thereby improving the cooling efficiency, and the higher the temperature, the greater the magnetic force of the electromagnet, the greater the deflection angle of the arc-shaped slider, the greater the overlapping area of the flow holes and the injection holes, and the greater the amount of cold water flowing in, that is, the amount of cold water injected into the exhaust port is automatically adjusted according to the temperature of the steam, and the cooling efficiency is automatically adjusted according to the temperature of the steam. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the box body inside the present application;

[0030] Figure 3 A schematic diagram of the bottom structure of the present application;

[0031] Figure 4 A schematic diagram of the inner liner structure of the present application;

[0032] Figure 5 A schematic diagram of the moisture removal system of the present application;

[0033] Figure 6 A schematic diagram of the cleaning and maintenance system of the present application;

[0034] Figure 7 A schematic diagram of the glass door structure of the present application;

[0035] Figure 8 A flow chart of the temperature control system of the baking mode of the present application;

[0036] Figure 9 A flow chart of the cleaning and maintenance system of the present application;

[0037] Figure 10 A schematic diagram of the cooling assembly of the present application;

[0038] Figure 11 Figure 10 A partial enlarged view of A of the present application;

[0039] Figure 12 A partial sectional view of the cooling assembly.

[0040] In the figure: 1, cabinet; 2, glass door; 3, control panel; 4, bottom decorative coaming; 5, cold air filter box; 6, water spray gun; 7, exhaust port; 8, air inlet; 9, inner liner; 10, boiler; 11, moisture removal valve; 13, electrical element; 14, heat dissipation fan; 15, water inlet valve assembly; 16, boiler drainage pump; 17, upper water tank; 18, drainage box; 19, drain pipe; 20, supporting leg; 21, descaling pump; 22, cleaning circulation pump; 23, cleaning drainage pump; 24, water inlet interface; 25, lower water tank; 26, heating chamber; 27, food carrier; 28, left and right tray rack; 29, air duct baffle; 30, centrifugal fan wheel; 31, electric heating element; 32, fan; 33, cleaning water inlet pipe; 34, temperature probe; 35, condensate water inlet; 36, drainage filter screen; 37, descaling box; 38, three-layer tempered glass; 39, upper and lower door hinge; 40, safety door lock; 41, LED illuminating lamp; 42, door inner water receiving box; 43, water guide mechanism; 44, cooling assembly; 441, liquid distribution ring; 442, adjusting ring; 4421, overflow hole; 443, arc-shaped sliding block; 444, supporting spring; 445, electromagnet; 71, injection hole; 72, arc-shaped groove. DETAILED DESCRIPTION

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example: Figures 1-12 As shown, this invention provides a smart steam oven technical solution. The smart steam oven includes a cabinet 1, a glass door 2, a control panel 3, a bottom decorative panel 4, a cold air filter box 5, a water spray gun 6, an exhaust port 7, and an air inlet 8. The cabinet 1 is equipped with an inner liner 9, a boiler 10, a dehumidification valve 11, a fan 32, electrical components 13, a cooling fan 14, a water inlet valve assembly 15, and a boiler drain pump 16. The inner liner 9 is equipped with an air duct baffle 29, a centrifugal impeller 30, and an electric heating element 31. The shape of the air duct baffle 29 matches that of the inner liner 9 to form a hot air circulation channel. The centrifugal impeller 30 is connected to the fan 32 and guides the hot air to be evenly distributed in the inner liner 9. The inner liner 9 is equipped with a heating chamber 26, a food carrier 27, and left and right tray racks 28. There is a support leg 20 at each of the four corners of the cabinet 1.

[0043] The inner liner 9 is the area for cooking food. The boiler 10 is used to generate the steam required for the steaming mode. The steam enters the inner liner 9 through the pipe at the top. The dehumidification valve 11 opens to remove moisture from the inner liner 9. The cooling fan 14 dissipates heat from the electrical components 13. The boiler drain pump 16 removes water from the boiler 10 according to the program control. The electric heating element 31 generates heat. The fan 32 drives the centrifugal impeller 30 to rotate, forming hot air. The hot air is blown into the inner liner through the guide around the air duct baffle 29 and acts on the food on the food carrier 27, so that the food is cooked to the desired effect. The cold air after passing through the food is drawn back to the middle of the centrifugal impeller 30 and then heated by the electric heating element 31 to form a hot air circulation.

[0044] The heating chamber 26 is equipped with a meat needle with six built-in temperature detection points. The meat needle detects the internal temperature of the food at multiple points and controls the cooking process based on the lowest detected temperature value.

[0045] The meat needles with six temperature detection points inside the heating chamber 26 are used to detect the internal temperature of the food at multiple points. The cooking is controlled by the lowest temperature value detected, so that the cooking effect will not be affected even if the meat needles are not fully inserted.

[0046] The housing 1 is equipped with a forced dehumidification system, including a dehumidification valve 11 and a negative pressure structure on the back of the centrifugal fan 30. When the dehumidification valve 11 is opened, dry air is drawn into the inner liner 9 through negative pressure, and the moisture is discharged into the upper water tank 17 through the bottom outlet and finally discharged through the exhaust port 7.

[0047] When the inner container needs to be dehumidified, the program-controlled dehumidification valve 11 is opened, and the blades at the back of the centrifugal fan 30 will form a negative pressure at the back when rotating, thereby sucking dry air from outside into the heating chamber 26, and then discharging the humidity in the heating chamber 26 to the upper water tank 17 through the bottom outlet, and then to the outside of the equipment through the exhaust port 7.

[0048] The bottom of the box body 1 is provided with a condensation cooling system, including a temperature probe 34, a condensation water inlet 35 and a spraying device; when it is detected that the water temperature exceeds the set value, the condensation water inlet 35 sprays cold water to reduce the steam discharge temperature and the water temperature.

[0049] When cooking in the steam mode, excess steam will be discharged to the outside of the equipment through the exhaust port 7, and long-term use of the steam mode will make the kitchen misty. If the temperature of the water discharged from the drain pipe 19 is too high, it is not conducive to the survival of microorganisms in the sewer; when the temperature probe 34 detects that the temperature exceeds the set value, the cold water forms a spray through the condensation water inlet 35, and the condensed water vapor reduces the water temperature, protecting microorganisms.

[0050] The bottom of the box body 1 adopts a double-layer water tank structure, including an upper water tank 17 and a lower water tank 25. The upper water tank 17 is connected with the inner container 9 to balance the air pressure, and the lower water tank 25 prevents water from flowing back to the inner container 9 through the overflow port and the safety overflow port; the lower water tank 25 is connected with the drain box 18 through the cleaning and drainage pump 23, and the drain box 18 is provided with a drain pipe 19 and a safety overflow channel to ensure that the water is directly discharged to the outside of the equipment.

[0051] The water in the heating chamber 26 flows into the upper water tank 17 through the bottom outlet, and then flows into the lower water tank 25 from the outlet of the upper water tank 17, and is pumped to the drain box 18 through the cleaning and drainage pump 23 and then flows away from the drain pipe 19; the upper water tank 17 serves as a transition for the inner container 9 to communicate with the atmosphere, so that the inner container 9 and the atmosphere will not generate a pressure difference; the lower water tank 25 is provided with an overflow port, and excess water flows from the overflow port to the drain box 18 and then flows away from the drain pipe 19. The lower water tank 25 is also provided with a safety overflow port, and when the drain pipe or the overflow pipe is blocked, excess water will flow out from the safety overflow port, so as not to flow back to the inner container, ensuring food hygiene, and the water directly flows to the table surface where the equipment is placed, facilitating timely maintenance.

[0052] The box 1 is provided with a cleaning and maintenance system, which comprises a descaling pump 21, a cleaning circulating pump 22, a cleaning drainage pump 23, a water inlet interface 24, a descaling box 37 and a water gun 6. The outlet of the cleaning circulating pump 22 is provided with a cleaning water inlet pipe 33, which is communicated with the inner container 9. The heating chamber 26 is provided with a drainage filter screen 36 and the descaling box 37. The cleaning circulating pump 22 pumps the water in the lower water tank 25 into the inner container 9 for automatic cleaning, and the descaling pump 21 injects the descaling agent in the descaling box 37 into the boiler 10 for descaling. The cleaning and maintenance system further comprises a control program, which automatically controls the cleaning circulating pump 22 and the descaling pump 21 to operate according to the cleaning mode selected by the user, so that the cleaning and descaling are simultaneously performed.

[0053] When the cleaning and maintenance equipment is cleaned, the appropriate program is selected on the control panel 3 according to the dirt condition of the equipment. The door is opened and the temperature is reduced according to the prompt, or the cleaning sheet is placed in the drainage filter screen 36, and the descaling sheet is placed in the descaling box 37. The lower water tank 25 is filled with water through the water inlet valve. The cleaning circulating pump 22 pumps the water in the lower water tank 25 into the heating chamber 26 for cleaning. The descaling pump 21 pumps the descaling agent dissolved in the descaling box 37 into the boiler 10 for descaling. The inner container and the boiler are cleaned several times by circulating cleaning. If there are some stubborn stains in the inner container, the water gun 6 can be used for flushing.

[0054] The boiler 10 is provided with a water level probe, an over-temperature protection device and a boiler drainage pump 16. The water level probe detects the water level in real time and controls water replenishment through the flow meter. The over-temperature protection device cuts off the heating when the water is lacking. The boiler drainage pump 16 is used for drainage when cleaning and starting the cold machine.

[0055] Under the program control, the water inlet valve of the boiler 10 is opened to fill water. When the water level probe detects the water level, 0.5L of water is controlled to be added through the flow meter on the waterway. The boiler electric heating element heats the water to generate steam, which is sent into the heating chamber 26 through the pipeline on the upper part of the boiler 10 to cook food. The water in the boiler 10 is continuously heated and slowly consumed. When the water level drops below the water level probe, the water level probe detects the lack of water and feeds back to the computer board to control water replenishment, so as to realize the circulation. The over-temperature protection device is provided to ensure the safety of the equipment when the boiler lacks water due to some reasons. The boiler drainage pump 16 is provided to drain water when cleaning and starting the cold machine, so as to ensure the hygiene of the boiler 10.

[0056] The glass door 2 comprises three layers of tempered glass 38, which is connected to the box 1 through the upper and lower door hinges 39. The glass door 2 is provided with a safety door lock 40, an LED illuminating lamp 41, an inner water receiving box 42 and a water guiding mechanism 43. The safety door lock 40 of the glass door 2 has a two-stage opening structure. The first stage opening gap releases steam, and the second stage is completely opened to access food. The LED illuminating lamp 41 is installed on the inner side of the glass door 2, and the light is directed to the inner container 9.

[0057] The intelligent steaming oven is provided with a glass door 2, which has three layers of tempered glass 38, and the inner layer of glass is coated with a heat reflecting coating, which better insulates the heat in the inner container, reduces the surface temperature of the equipment, and also has the effects of heat preservation and energy saving. The glass window can observe the cooking process of food at any time. The right side of the glass door 2 is connected with the box body 1 through the up-down door hinge 39, and the left side is provided with a safety door lock 40. The safety door lock 40 has two levels. When the first level is opened, a gap is first opened, and the hot gas and steam can be quickly dissipated. The second level is completely opened to take food, so as to ensure that the operator will not be injured by the instant high temperature. The left and right sides of the inside of the glass door 2 are provided with LED illuminating lamps 41, which shoot light into the heating chamber 26, and are used for better observing the cooking effect. A water receiving box 42 is arranged below the glass, which is used for receiving the water flowing down from the inner layer of glass, and the water will not flow to the ground. The water is guided to the box body 1 through a water guiding mechanism 43, and finally discharged out of the equipment.

[0058] A cooling assembly 44 is arranged in the exhaust port 7. The cooling assembly 44 can automatically adjust the cooling efficiency according to the temperature of the steam. The cooling assembly 44 includes a liquid distribution ring 441 and an adjusting ring 442. The liquid distribution ring 441 is tightly connected with the outer wall of the exhaust port 7. The inner cavity of the liquid distribution ring 441 is connected with a cold water source. The adjusting ring 442 is in communication with the inner cavity of the liquid distribution ring 441. The adjusting ring 442 is rotatably connected with the outer wall of the exhaust port 7. The adjusting ring 442 is provided with a flow hole 4421. The exhaust port 7 is provided with a spray hole 71. The spray hole 71 is in communication with the flow hole 4421. The spray hole 71 is used for spraying cold water mist into the exhaust port 7.

[0059] In order to prevent the temperature of the steam flowing out of the exhaust port 7 from being too high, the cooling assembly 44 is used for cooling the steam. When the temperature probe 34 detects that the temperature of the steam is relatively high, the cold water flows into the adjusting ring 442 through the liquid distribution ring 441, and then flows into the exhaust port 7 through the flow hole 4421 and the spray hole 71 in sequence to cool the steam. The spray hole 71 is arranged along the inner wall of the exhaust port 7. A plurality of spray holes 71 can increase the contact area between the cold water mist and the steam, so as to improve the cooling efficiency.

[0060] The exhaust port 7 is also provided with an arc-shaped groove 72. The adjusting ring 442 is provided with an arc-shaped sliding block 443. The arc-shaped sliding block 443 is slidably connected with the arc-shaped groove 72. The arc-shaped sliding block 443 is made of ferromagnetic material. The flow hole 4421 and the spray hole 71 are arranged alternately. The electromagnet 445 can automatically adjust the position of the adjusting ring 442 according to the temperature of the steam measured by the temperature probe 34.

[0061] When the steam temperature is low, the electromagnet 445 does not work, the flow cross section formed between the staggered flow holes 4421 and the injection holes 71 is small, the amount of cooling water flowing into the exhaust port 7 is small, and the cooling efficiency matches the steam temperature; when the temperature probe 34 detects that the steam temperature rises, the current transmitted to the electromagnet 445 is increased, under the action of the magnetic force, the arc-shaped slider 443 made of ferromagnetic material will be driven to deflect a certain distance along the arc-shaped groove 72, the supporting spring 444 is stretched under force, the adjusting ring 442 deflects a certain angle along the outer wall of the exhaust port 7, so that the overlapping area of the flow holes 4421 and the injection holes 71 increases, the amount of cold water flowing in increases, thereby improving the cooling efficiency, and the higher the temperature, the greater the magnetic force of the electromagnet 445, the greater the deflection angle of the arc-shaped slider 443, the greater the overlapping area of the flow holes 4421 and the injection holes 71, the greater the amount of cold water flowing in, that is, the amount of cold water injected into the exhaust port 7 is automatically adjusted according to the temperature of the steam, and the cooling efficiency is automatically adjusted according to the temperature of the steam.

[0062] The working principle of the application is as follows: the intelligent steam oven generates heat through the electric heating element 31 or generates steam through the boiler 10 for cooking, utilizes the centrifugal fan 32 to drive the centrifugal impeller 30 and the air duct baffle 29 to form a closed loop hot air circulation (baking mode) or directly inject steam (steaming mode), and controls the cooking process by the built-in multi-point temperature measuring meat needle to accurately control the lowest temperature inside the food; at the same time, the centrifugal impeller 30 back negative pressure principle is used to forcibly inhale dry air and discharge moisture, and is equipped with an intelligent exhaust cooling system, which can automatically adjust the cooling water injection amount according to the steam temperature, so as to reduce the exhaust temperature and reduce the mist; in addition, an automatic cleaning circulation system and a boiler descaling system are integrated; when the temperature probe 34 detects that the steam temperature rises, the current transmitted to the electromagnet 445 is increased, under the action of the magnetic force, the arc-shaped slider 443 made of ferromagnetic material will be driven to deflect a certain distance along the arc-shaped groove 72, the supporting spring 444 is stretched under force, the adjusting ring 442 deflects a certain angle along the outer wall of the exhaust port 7, so that the overlapping area of the flow holes 4421 and the injection holes 71 increases, the amount of cold water flowing in increases, thereby improving the cooling efficiency, and the higher the temperature, the greater the magnetic force of the electromagnet 445, the greater the deflection angle of the arc-shaped slider 443, the greater the overlapping area of the flow holes 4421 and the injection holes 71, the greater the amount of cold water flowing in, that is, the amount of cold water injected into the exhaust port 7 is automatically adjusted according to the temperature of the steam.

[0063] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A smart steam oven, characterized in that: The intelligent steaming oven comprises a box body (1), a glass door (2), a control panel (3), a bottom decorative coaming (4), a cold air filter box (5), a water spray gun (6), an exhaust port (7), an air inlet (8), the box body (1) is internally provided with an inner container (9), a boiler (10), a dehumidification valve (11), a fan (32), an electrical element (13), a heat dissipation fan (14), a water inlet valve assembly (15) and a boiler drainage pump (16), the inner container (9) is provided with a wind channel baffle (29), a centrifugal wind wheel (30) and an electric heating element (31), the wind channel baffle (29) is matched with the shape of the inner container (9) to form a hot air circulation channel; the centrifugal wind wheel (30) is connected with the fan (32) to make the hot air uniformly distributed in the inner container (9) through the flow guiding effect; the inner container (9) is internally provided with a heating chamber (26), a food carrier (27) and left and right plate racks (28); the box body (1) is provided with one supporting leg (20) at each corner. 2.The smart steaming oven of claim 1, wherein: The heating chamber (26) is provided with meat needles with six built-in temperature detection points, the meat needles detect the internal temperature of food through multi-point detection, and the cooking program is controlled by the lowest temperature value detected. 3.The smart steaming oven of claim 1, wherein: The box body (1) is internally provided with a forced dehumidification system, comprising a dehumidification valve (11) and a negative pressure structure at the back of the centrifugal wind wheel (30); when the dehumidification valve (11) is opened, dry air is sucked into the inner container (9) through negative pressure, and moisture is discharged into the upper water tank (17) through the bottom outlet, and finally discharged through the exhaust port (7). 4.The smart steaming oven of claim 1, wherein: The bottom of the box body (1) is provided with a condensation cooling system, comprising a temperature probe (34), a condensation water inlet (35) and a spraying device; when it is detected that the drainage temperature exceeds the set value, the condensation water inlet (35) is connected to cold water to form a spray to reduce the steam discharge temperature and the drainage temperature. 5.The smart steaming oven of claim 1, wherein: The bottom of the box body (1) adopts a double-layer water tank structure, comprising an upper water tank (17) and a lower water tank (25), the upper water tank (17) is communicated with the inner container (9) to balance the air pressure, the lower water tank (25) prevents water from flowing back to the inner container (9) through the overflow port and the safety overflow port; the lower water tank (25) is connected with the drainage box (18) through the cleaning drainage pump (23), the drainage box (18) is provided with a drainage pipe (19) and a safety overflow channel to ensure that water is directly discharged outside the equipment. 6.The smart steaming oven of claim 1, wherein: The box (1) is internally provided with a cleaning and maintenance system, which comprises a descaling pump (21), a cleaning circulating pump (22), a cleaning drainage pump (23), a water inlet interface (24), a descaling box (37) and a water spray gun (6). The outlet of the cleaning circulating pump (22) is provided with a cleaning water inlet pipe (33) in communication with the inner container (9). The heating chamber (26) is internally provided with a drainage filter screen (36) and the descaling box (37). The cleaning circulating pump (22) pumps the water in the lower water tank (25) into the inner container (9) for automatic cleaning. The descaling pump (21) injects the descaling agent in the descaling box (37) into the boiler (10) for descaling. The cleaning and maintenance system further comprises a control program for automatically controlling the operation of the cleaning circulating pump (22) and the descaling pump (21) according to the cleaning mode selected by the user, so that the cleaning and descaling are simultaneously performed. 7.The smart steaming oven of claim 1, wherein: The boiler (10) is provided with a water level probe, an over-temperature protection device and a boiler drainage pump (16). The water level probe detects the water level of the boiler in real time and controls the water replenishment through the flow meter. The over-temperature protection device cuts off the heating when the water is insufficient. The boiler drainage pump (16) is used for drainage during cleaning and cold start. 8.The smart steaming oven of claim 1, wherein: The glass door (2) comprises three layers of tempered glass (38) connected to the box (1) through upper and lower door hinges (39). The glass door (2) is provided with a safety door lock (40), an LED illuminating lamp (41), an inner water receiving box (42) and a water guiding mechanism (43). The safety door lock (40) of the glass door (2) has a two-stage opening structure. The first stage opening gap releases steam, and the second stage is completely opened to access food. The LED illuminating lamp (41) is installed on the inner side of the glass door (2) and directs light to the inner container (9). 9.The smart steaming oven of claim 1, wherein: The exhaust port (7) is internally provided with a cooling assembly (44) capable of automatically adjusting the cooling efficiency according to the temperature of the steam. The cooling assembly (44) comprises a liquid distribution ring (441) and an adjusting ring (442). The liquid distribution ring (441) is tightly connected with the outer wall of the exhaust port (7), and the inner cavity of the liquid distribution ring (441) is connected with a cold water source. The adjusting ring (442) is in communication with the inner cavity of the liquid distribution ring (441) and is rotatably connected with the outer wall of the exhaust port (7). The adjusting ring (442) is provided with a flow hole (4421). The exhaust port (7) is provided with a spray hole (71) in communication with the flow hole (4421). The spray hole (71) is used for spraying cold water mist into the exhaust port (7). 10.The smart steaming oven of claim 9, wherein: The exhaust port (7) is also provided with an arc-shaped slot (72), the adjusting ring (442) is provided with an arc-shaped sliding block (443), the arc-shaped sliding block (443) is in sliding connection with the arc-shaped slot (72), the two sides of the arc-shaped sliding block (443) are respectively provided with a supporting spring (444) and an electromagnet (445), the arc-shaped sliding block (443) is made of ferromagnetic material, the overflow hole (4421) and the injection hole (71) are arranged alternately, and the electromagnet (445) can automatically adjust the position of the adjusting ring (442) according to the steam temperature measured by the temperature probe (34).

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