阅读说明：本技术 对流结构、蒸汽烹饪装置及控制方法 (Convection structure, steam cooking device and control method ) 是由 任富佳 冯国华 宋龙龙 刘连超 潘艳丽 于 2021-09-26 设计创作，主要内容包括：本发明提供了一种对流结构、蒸汽烹饪装置及控制方法,涉及烹饪电器技术领域,本发明提供的对流结构包括内胆、排气组件、进水组件、排水组件、水气总管、水箱和蒸汽发生器；排气组件具有与外界连通的空气进口,内胆上开设有排气口,排气组件通过排气管与水气总管的第一端连通,水气总管的第二端与蒸汽发生器连通,蒸汽发生器的出汽口与内胆连通,内胆内的蒸汽经排气口排出；进水组件的进水口与水箱连通,进水组件的出水口与水气总管的第一端连通,排水组件的进水口与水气总管第一端连通,排水组件的出水口与水箱连通。本发明缓解相关技术中现有的烹饪器具在烹饪结束后开门会涌出大量高温蒸汽,导致用户体验较差且危险性较大的技术问题。(The invention provides a convection structure, a steam cooking device and a control method, and relates to the technical field of cooking appliances, wherein the convection structure comprises an inner container, an exhaust assembly, a water inlet assembly, a water discharge assembly, a water-gas main pipe, a water tank and a steam generator; the exhaust assembly is provided with an air inlet communicated with the outside, the liner is provided with an exhaust port, the exhaust assembly is communicated with the first end of the water-gas main pipe through an exhaust pipe, the second end of the water-gas main pipe is communicated with the steam generator, a steam outlet of the steam generator is communicated with the liner, and steam in the liner is exhausted through the exhaust port; the water inlet of the water inlet assembly is communicated with the water tank, the water outlet of the water inlet assembly is communicated with the first end of the water-gas main pipe, the water inlet of the drainage assembly is communicated with the first end of the water-gas main pipe, and the water outlet of the drainage assembly is communicated with the water tank. The invention solves the technical problems that the existing cooking utensil in the related art has poor user experience and high risk due to the fact that a large amount of high-temperature steam can gush out when the door is opened after cooking is finished.)

1. A convection structure applied to a steam cooking apparatus, comprising: the water tank comprises an inner container (101), an exhaust assembly, a water inlet assembly, a water discharge assembly, a water-gas main pipe (400), a water tank (600) and a steam generator (102);

the exhaust assembly is provided with an air inlet (200), the air inlet (200) is communicated with the outside, an exhaust port (300) is formed in the inner container (101), the exhaust assembly is communicated with a first end of the water-gas main pipe (400) through an exhaust pipe (503), a second end of the water-gas main pipe (400) is communicated with the inner bottom of the steam generator (102), a steam outlet of the steam generator (102) is communicated with the inner container (101), and steam in the inner container (101) is exhausted through the exhaust port (300);

the water inlet of the water inlet assembly is communicated with the water tank (600), the water outlet of the water inlet assembly is communicated with the first end of the water gas main pipe (400), the water inlet of the water discharging assembly is communicated with the first end of the water gas main pipe (400), and the water outlet of the water discharging assembly is communicated with the water tank (600).

2. The convection structure according to claim 1, wherein the exhaust assembly comprises an exhaust pump (501), the exhaust pump (501) is communicated with the air inlet (200), and an air outlet of the exhaust pump (501) is communicated with the inner container (101) through the exhaust pipe (503).

3. The convective structure of claim 2, wherein the exhaust assembly further comprises an exhaust valve (502), the exhaust valve (502) disposed at the exhaust pipe (503).

4. The convection structure of claim 1, wherein an air exhaust assembly is arranged on the inner container (101), and the air exhaust assembly comprises a heat radiation fan (901) and a heat radiation air duct (902);

the heat dissipation fan (901) is arranged at an air inlet of the heat dissipation air duct (902), and the exhaust port (300) is communicated with the heat dissipation air duct (902).

5. The convection structure of claim 1, wherein the water inlet assembly comprises a water inlet pump (701), a water inlet of the water inlet pump (701) is communicated with the water tank (600) through a water inlet pipe (703), and a water outlet of the water inlet pump (701) is communicated with the water and air manifold (400) through the water inlet pipe (703).

6. The convective structure of claim 5, wherein the water inlet assembly further comprises a water inlet valve (702), the water inlet valve (702) disposed at the water inlet pipe (703).

7. The convection structure of claim 1, wherein the drain assembly comprises a drain pump (801), a water inlet of the drain pump (801) is in communication with the water and air manifold (400) through a drain pipe (803), and a water outlet of the drain pump (801) is in communication with the water tank (600) through the drain pipe (803).

8. The convective structure of claim 7, wherein the drain assembly further comprises a drain valve (802), the drain valve (802) disposed at the drain pipe (803).

9. Steam cooking device, characterised in that it comprises a steam generator (102) and a convection arrangement according to any one of claims 1-8, the steam generator (102) being in communication with a liner (101) in the convection arrangement.

10. A control method of the steam cooking apparatus as set forth in claim 9, comprising a water intake stage, a water discharge stage and an air discharge stage which are sequentially performed:

in the water inlet stage, a water inlet valve (702) of the convection structure is opened, a water outlet valve (802) of the convection structure and a gas outlet valve (502) of the convection structure are closed, a water inlet pump (701) of the convection structure is started, a water discharge pump (801) of the convection structure and a gas outlet pump (501) of the convection structure are closed, and water in the water tank (600) is filled into the steam generator (102) through the water gas main pipe (400) through the water inlet pump (701);

during the draining phase, the draining valve (802) is opened, the water inlet valve (702) and the air outlet valve (502) are closed, the draining pump (801) is opened, the water inlet pump (701) and the air outlet valve (502) are closed, and the draining pump (801) pumps residual water in the steam generator (102) and the water-air manifold (400) back to the water tank (600);

in the exhaust stage, the exhaust valve (502) is opened, the water inlet valve (702) and the water discharge valve (802) are closed, the exhaust pump (501) is opened, the water inlet pump (701) and the water discharge pump (801) are closed, the exhaust pump (501) conveys external cold air to the inner container (101), and cooled gas is discharged through the exhaust port (300).

11. The control method of the steam cooking device according to claim 10, further comprising a process of detecting the temperature in the inner container (101), starting the water discharging stage after the cooking is finished, and starting the air discharging stage after the water discharging stage is finished, and controlling the air discharging stage to stop the operation after the temperature in the inner container (101) is detected to be equal to or lower than a set temperature threshold.

Technical Field

The invention relates to the technical field of cooking appliances, in particular to a convection structure, a steam cooking device and a control method.

Background

The steam cooking device is modern cooking equipment, and the original nutritional ingredients of food can be kept in the cooking process by using a dynamic steam balance technology. The intelligent control system has the advantages of attractive appearance, small occupied area, energy conservation, large capacity, temperature display, pressure display, steaming time setting, voice prompt, automatic steam inlet and outlet, steam pressure stabilizer and the like.

The cooking utensil that has the function of evaporating such as current domestic electric steam ager, evaporate roast all-in-one all has a problem, just opens the door after the culinary art finishes and can have a large amount of steam, steam to gush out, and it is high to gush out steam temperature, and user experience is relatively poor, and has certain danger.

Disclosure of Invention

The invention aims to provide a convection structure, a steam cooking device and a control method, which are used for relieving the technical problems that the existing cooking appliance in the related art has poor user experience and high risk due to the fact that a large amount of high-temperature steam is gushed out when the door is opened after cooking is finished.

In a first aspect, the present invention provides a convection structure applied to a steam cooking apparatus, comprising: the water-gas separator comprises a liner, an exhaust assembly, a water inlet assembly, a water discharge assembly, a water-gas main pipe, a water tank and a steam generator;

the exhaust assembly is provided with an air inlet which is communicated with the outside, the inner container is provided with an exhaust port, the exhaust assembly is communicated with the first end of the water-gas main pipe through an exhaust pipe, the second end of the water-gas main pipe is communicated with the inner bottom of the steam generator, a steam outlet of the steam generator is communicated with the inner container, and steam in the inner container is exhausted through the exhaust port;

the water inlet of the water inlet assembly is communicated with the water tank, the water outlet of the water inlet assembly is communicated with the first end of the water-gas main pipe, the water inlet of the drainage assembly is communicated with the first end of the water-gas main pipe, and the water outlet of the drainage assembly is communicated with the water tank.

In an optional embodiment, it is preferable that the exhaust assembly includes an exhaust pump, the exhaust pump is communicated with the air inlet, and an air outlet of the exhaust pump is communicated with the inner container through the exhaust pipe.

In an alternative embodiment, it is preferable that the exhaust assembly further includes an exhaust valve disposed at the exhaust pipe.

In an optional embodiment, preferably, an exhaust assembly is arranged on the inner container, and the exhaust assembly includes a heat dissipation fan and a heat dissipation air duct;

the heat dissipation air duct is communicated with an air outlet of the heat dissipation fan, and the air outlet is communicated with the heat dissipation air duct.

In an optional implementation manner, preferably, the water inlet assembly includes a water inlet pump, a water inlet of the water inlet pump is communicated with the water tank through a water inlet pipe, and a water outlet of the water inlet pump is communicated with the water gas main pipe through the water inlet pipe.

In an alternative embodiment, it is preferable that the water inlet assembly further includes a water inlet valve disposed at the water inlet pipe.

In an alternative embodiment, it is preferable that the drain assembly includes a drain pump, a water inlet of the drain pump communicates with the water gas main pipe through a drain pipe, and a water outlet of the drain pump communicates with the water tank through the drain pipe.

In an optional embodiment, it is preferable that the drain assembly further includes a drain valve disposed in the drain pipe.

In a second aspect, the present invention provides a steam cooking device, including a steam generator and the convection structure provided in any one of the optional embodiments of the first aspect, wherein the steam generator is communicated with the inner container in the convection structure, and the other end of the steam generator is communicated with the water gas main pipe.

In a third aspect, the present invention provides a method for controlling a steam cooking device as in any one of the optional embodiments of the second aspect, comprising a water inlet stage, a water discharge stage and an air discharge stage which are sequentially performed:

in the water inlet stage, a water inlet valve of the convection structure is opened, a water outlet valve of the convection structure and an air outlet valve of the convection structure are closed, a water inlet pump of the convection structure is started, a water discharge pump of the convection structure and an air outlet pump of the convection structure are closed, and water in the water tank is injected into the steam generator through the water-air main pipe by the water inlet pump of the convection structure;

in the drainage stage, the drainage valve is opened, the water inlet valve and the exhaust valve are closed, the drainage pump is opened, the water inlet pump and the exhaust valve are closed, and the drainage pump pumps residual water in the steam generator and the water-gas main pipe back to the water tank;

in the exhaust stage, the exhaust valve is opened, the water inlet valve and the water drain valve are closed, the exhaust pump is opened, the water inlet pump and the drainage pump are closed, the exhaust pump conveys external cold air to the inner container, and the cooled air is exhausted through the exhaust port.

In an optional embodiment, it is preferable that the cooking device further includes a process of detecting a temperature in the inner container, after cooking is finished, the water draining stage is started to operate, after the water draining stage is finished, the air exhausting stage is started to operate, and after it is detected that the temperature in the inner container is equal to or lower than a set temperature threshold, the air exhausting stage is controlled to stop operating.

By adopting the technical scheme, the invention can realize the following beneficial effects:

an embodiment of the present invention provides a convection structure applied to a steam cooking apparatus, including: the water-gas separator comprises a liner, an exhaust assembly, a water inlet assembly, a water discharge assembly, a water-gas main pipe, a water tank and a steam generator; the exhaust assembly is provided with an air inlet communicated with the outside, the liner is provided with an exhaust port, the exhaust assembly is communicated with the first end of the water-gas main pipe through an exhaust pipe, the second end of the water-gas main pipe is communicated with the steam generator, a steam outlet of the steam generator is communicated with the liner, and steam in the liner is exhausted through the exhaust port; the water inlet of the water inlet assembly is communicated with the water tank, the water outlet of the water inlet assembly is communicated with the first end of the water-gas main pipe, the water inlet of the drainage assembly is communicated with the first end of the water-gas main pipe, and the water outlet of the drainage assembly is communicated with the water tank. According to the invention, the exhaust assembly is arranged and is communicated with the water-gas main pipe through the exhaust pipe, one end of the exhaust assembly is connected with the atmosphere through the air inlet, and is connected with the steam generator and the cooking device through the water-gas main pipe, the water inlet assembly and the water discharge assembly which are connected in parallel, and the steam generator and the cooking device are connected through a pipeline, so that the structure is simple, the water inlet and the water discharge processes are not interfered with each other, and the working efficiency is improved. The culinary art is ended, lets in the inner bag with outside cold air through the blast pipe, cools off a large amount of steam gas in the inner bag to discharge through the gas vent, a large amount of high temperature steam that gushes out when reducible opening the door promotes user experience, and reduces high temperature scald danger.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a convection structure according to a first embodiment of the present invention;

fig. 2 is a schematic partial structural view of a convection structure according to a second embodiment of the present invention;

fig. 3 is a partial structural schematic view of a convection structure according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a convection structure according to a third embodiment of the present invention.

Icon: 101-an inner container; 102-a steam generator; 103-a steam inlet; 104-steam inlet pipe; 105-a door body; 200-an air inlet; 300-an exhaust port; 400-water gas main; 501-an exhaust pump; 502-exhaust valve; 503-exhaust pipe; 600-a water tank; 701-a water inlet pump; 702-a water inlet valve; 703-water inlet pipe; 801-a draining pump; 802-a drain valve; 803-a drain pipe; 901-a heat dissipation fan; 902-heat dissipation air duct.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The present embodiment provides a convection structure applied to a steam cooking apparatus, including: the water tank comprises an inner container 101, an exhaust assembly, a water inlet assembly, a water discharge assembly, a water-gas main pipe 400, a water tank 600 and a steam generator 102; the exhaust assembly has air inlet 200, and air inlet 200 and external intercommunication have seted up gas vent 300 on the inner bag 101, and gas vent 300 sets up at inner bag 101 top, utilizes steam or steam density to be greater than the principle of air, and the gas vent 300 of seting up from the inner bag 101 top discharges the steam in the inner bag 101 from bottom to top, and it is higher to make the better efficiency of emission effect. The exhaust assembly is communicated with the first end of the water gas main pipe 400 through the exhaust pipe 503, the second end of the water gas main pipe 400 is communicated with the inner bottom of the steam generator 102, the steam outlet of the steam generator 102 is connected with the inner container 101, and steam in the inner container 101 is exhausted through the exhaust port 300. A door body 105 is arranged on one side of the inner container 101, the door body 105 can be hinged with the inner container 101 and can be hinged with the side edge, fixed edge or bottom edge of the inner container 101, and a cooking space can be formed between the door body 105 and the inner container 101 by the door body 105. The inner container 101 is substantially in the shape of a rounded rectangular parallelepiped, and the inner container 101 is generally made of a metal material for containing a material to be cooked. The water inlet of the water inlet assembly is communicated with the water tank 600, the water outlet of the water inlet assembly is communicated with the first end of the water gas main pipe 400, the water inlet of the water discharging assembly is communicated with the first end of the water gas main pipe 400, and the water outlet of the water discharging assembly is communicated with the water tank 600.

Specifically, one end of the water-gas main pipe 400 is in fluid communication with a gas inlet of the steam generator 102, the other end of the water-gas main pipe 400 is respectively connected in parallel with a water inlet assembly and a water outlet assembly, a water inlet of the water inlet assembly is communicated with the water tank 600, a water outlet of the water-gas main pipe 400 is communicated with the water-gas main pipe 400, water in the water tank 600 is injected into the steam generator 102 through the water inlet assembly via the water-gas main pipe 400, the steam generator 102 generates steam when working, and the steam is conveyed into the inner container 101 through the steam inlet pipe 104 to cook food in the cooking device; after cooking, the remaining water in the steam generator 102 and the water-air manifold 400 is pumped back to the water tank 600 through the drainage assembly. Through the water inlet assembly and the water outlet assembly of the water gas main pipe 400 and the parallel connection, and the steam generator 102 and the cooking device are connected through a pipeline, the structure is simple, the water inlet and water outlet processes are not interfered with each other, and the working efficiency is improved.

The convection current structure of this embodiment is through setting up exhaust assembly, and exhaust assembly passes through blast pipe 503 and water gas house steward 400 intercommunication, and exhaust assembly's one end passes through air intlet 200 and connects the atmosphere, through water gas house steward 400 and parallelly connected subassembly and the drainage subassembly of intaking, and through a tube coupling steam generator 102 and culinary art device, simple structure makes into and intakes and the mutual noninterference of drainage process, improves work efficiency. The culinary art is ended, lets in inner bag 101 with outside cold air through advancing exhaust subassembly, cools off a large amount of steam gas in inner bag 101 to discharge through gas vent 300, a large amount of high temperature steam that gushes out when reducible opening the door promotes user experience, and reduces high temperature and scald danger.

Referring to fig. 1, in the present embodiment, preferably, the exhaust assembly includes an exhaust pump 501, the exhaust pump 501 is communicated with the air inlet 200, and an air outlet of the exhaust pump 501 is communicated with the inner container 101 through an exhaust pipe 503.

Specifically, an exhaust valve 502 is disposed on the exhaust pipe 503, the exhaust valve 502 can control the opening and closing of the exhaust pump 501, a steam inlet 103 is disposed on one side of the inner container 101 away from the door body 105, the steam inlet 103 is connected to the steam generator 102 through a steam inlet pipe 104, an air inlet of the steam generator 102 is in fluid communication with an air outlet of the exhaust pump 501 through the exhaust pipe 503, an air outlet of the steam generator 102 is in fluid communication with the steam inlet 103 through the steam inlet pipe 104, the exhaust pump 501 can convey outside cold air to the inner container 101 through the exhaust pipe 503 and the steam generator 102 via the steam inlet 103 to form convection in the inner container 101, the air in the cavity is cooled, the steam in the inner container 101 is exhausted through the exhaust port 300 on the inner container 101, the effect of convection between the steam in the inner container 101 and the outside air is achieved, the cavity of the inner container 101 can be cooled and exhausted quickly, and the heat wave of the exhausted steam after the door is opened is reduced. The exhaust pump 501 is communicated with the water-gas main pipe 400 through the exhaust pipe 503, so that the exhaust pump 501 conveys external cold air to be shared by the pipeline from the steam generator 102 to the liner 101 and the water-gas main pipe 400, the gas-liquid conveying and sharing are carried out by the same pipeline, an extra pipeline from the exhaust pump 501 to the steam generator 102 does not need to be additionally arranged, the integral structure is simplified, and the production cost is reduced.

Referring to fig. 1, in the embodiment, preferably, the water inlet assembly includes a water inlet pump 701, a water inlet of the water inlet pump 701 is communicated with the water tank 600 through a water inlet pipe 703, and a water outlet of the water inlet pump 701 is communicated with the water gas main pipe 400 through the water inlet pipe 703; the drain assembly includes a drain pump 801, a water inlet of the drain pump 801 is communicated with the water and air manifold 400 through a drain pipe 803, and a water outlet of the drain pump 801 is communicated with the water tank 600 through the drain pipe 803.

Specifically, two ends of a water inlet pump 701 are respectively connected with the water tank 600 and the water-air main pipe 400 through a water inlet pipe 703, two ends of a water outlet pump 801 are respectively connected with the water tank 600 and the water-air main pipe 400 through a water outlet pipe 803, water in the water tank 600 is filled into the steam generator 102 through the water-air main pipe 400 through the water inlet pump 701, the steam generator 102 generates steam when working, and the steam is conveyed into the inner container 101 through the steam inlet pipe 104 to cook food in the cooking device; after cooking, the residual water in the steam generator 102 and the water-air manifold 400 is pumped back to the water tank 600 by the drainage pump 801, so that the water inlet and drainage processes are circulated. Through the water inlet assembly and the water outlet assembly of the water gas main pipe 400 and the parallel connection, and the steam generator 102 and the cooking device are connected through a pipeline, the structure is simple, the water inlet and water outlet processes are not interfered with each other, and the working efficiency is improved.

The exhaust pump 501, the water inlet pump 701 and the drainage pump 801 in the embodiment have a locking function, so that cross talk of water paths and air paths among the exhaust assembly, the water inlet assembly and the drainage assembly is prevented. When the pump itself has a lock function, no separate control of the valve is necessary.

The convection structure provided by the embodiment of the invention introduces external cold air through the exhaust pump 501 to rapidly cool hot air in the liner 101, fully utilizes the exhaust port 300 of the existing system, does not need to additionally open holes in the liner 101, has a simple structure, can reduce a large amount of high-temperature steam gushed out when the door is opened, improves user experience, and reduces the danger of high-temperature scalding.

Example two

Referring to fig. 2, the present embodiment provides a convection structure in another structural form, and the difference between the convection structure and the convection structure provided in the first embodiment is that:

the water inlet assembly further comprises a water inlet valve 702, the water inlet valve 702 is arranged on the water inlet pipe 703 and is connected with the water inlet pump 701, the water inlet valve 702 and the water inlet pump 701 are independent devices respectively, the position of the water inlet valve 702 can be in front of or behind the water inlet pump 701, and the water inlet valve 702 controls the on-off of the water inlet pipe 703; the drain assembly further includes a drain valve 802, the drain valve 802 is disposed on the drain pipe 803 and connected to the drain pump 801, the drain valve 802 and the drain pump 801 are independent devices, the position of the drain valve 802 can be in front of or behind the drain pump 801, the drain valve 802 controls the on/off of the drain pipe 803, and the cross talk of water paths and air paths among the exhaust assembly, the water inlet assembly and the drain assembly is prevented.

The control method of the steam cooking device provided by the embodiment comprises a water inlet stage, a water discharge stage and an air discharge stage which are sequentially performed, wherein in the water inlet stage, a water inlet valve 702 is opened, a water discharge valve 802 and an air discharge valve 502 are closed, at this time, a water inlet pump 701 is started, a water discharge pump 801 and an air discharge pump 501 are closed, water in a water tank 600 is filled into a steam generator 102 through a water-gas main pipe 400 by the water inlet pump 701, the steam generator 102 generates steam when working, and the steam is conveyed into an inner container 101 through a steam inlet pipe 104 to cook food in the cooking device; after cooking is finished, in a drainage stage, the drainage valve 802 is opened, the water inlet valve 702 and the air outlet valve 502 are closed, at the moment, the drainage pump 801 is opened, the water inlet pump 701 and the air outlet valve 502 are closed, and residual water in the steam generator 102 and the water-gas main pipe 400 is pumped back to the water tank 600 through the drainage pump 801; after the residual water is pumped back, when the exhaust stage is started, the exhaust valve 502 is opened, the water inlet valve 702 and the water discharge valve 802 are closed, the exhaust pump 501 is opened at the moment, the water inlet pump 701 and the water discharge pump 801 are closed, the exhaust pump 501 can convey the external cold air to the liner 101 through the exhaust pipe 503 and the steam generator 102 through the steam inlet 103 so as to form convection in the liner 101, the gas in the cavity is cooled, then the steam in the liner 101 is discharged through the exhaust port 300 on the liner 101, the effect of convection of the steam in the liner 101 and the external air is achieved, the steam can be rapidly cooled and discharged from the cavity of the liner 101, and the heat wave of the external steam after the door is opened is reduced.

The control method further comprises the step of detecting the temperature in the inner container 101, starting the drainage stage to work after cooking is finished, starting the exhaust stage to work after the drainage stage is finished, and controlling the exhaust stage to stop working after the temperature in the inner container 101 is detected to be equal to or lower than a set temperature threshold value.

It is noted that, referring to fig. 3, the inlet valve 702 and the drain valve 802 of the present embodiment may also be integrated with a pump. Of course, other pumps may be used as long as the purpose of controlling the opening and closing of the water inlet pump 701 and the water discharge pump 801 can be achieved.

EXAMPLE III

Referring to fig. 4, the present embodiment provides a convection structure in another structural form, which is different from the convection structures provided in the first and second embodiments in that:

the embodiment further comprises an air exhaust assembly, wherein the air exhaust assembly is arranged on the inner container 101 and comprises a heat radiation fan 901 and a heat radiation air duct 902; the heat dissipation air duct 902 is communicated with an air outlet of the heat dissipation fan 901, and the air outlet 300 is communicated with the heat dissipation air duct 902.

Specifically, the heat dissipation fan 901 is installed on the liner 101, the heat dissipation air duct 902 is sleeved outside the heat dissipation fan 901 and the air outlet 300, so that the air outlet and the air outlet 300 of the heat dissipation fan 901 are both communicated with the heat dissipation air duct 902, during an exhaust stage, hot air inside the liner 101 is exhausted through the air outlet 300 on the liner 101 and enters the heat dissipation air duct 902, the heat dissipation fan 901 works to make the air outlet blow cold air, so that the hot air entering the heat dissipation air duct 902 is mixed with the cold air, convection is formed in the heat dissipation air duct 902, the hot air inside the heat dissipation air duct 902 is cooled, and finally the hot air is exhausted through the air outlet of the heat dissipation air duct 902, so that the convection effect of the hot air inside the liner 101 and the outside air is achieved, the cavity of the liner 101 can be rapidly cooled and exhausted, the heat wave of the externally exhausted steam after the door is opened is reduced, and the cooling effect is further improved.

Example four

The embodiment provides a steam cooking device, which comprises a steam generator 102 and a convection structure, wherein one end of the steam generator 102 is communicated with a liner 101 in the convection structure, and the other end of the steam generator is connected with a water gas main pipe 400.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.