Steaming oven

Abstract

The utility model provides a steaming and baking oven which comprises an inner container, an outer container and a heating device. An air duct is formed in the air duct shell; at least part of the first fan is arranged in the air duct; the gas guide part comprises a smell detection cavity which is communicated with the air duct and can be communicated with the cooking cavity; an exhaust pipe; the odor detection device comprises an odor sensing part; a cooling channel is formed in the exhaust pipe and located in the air duct. When the smell detection cavity is communicated with the cooking cavity, the first fan rotates to enable air in the cooking cavity to flow into the smell detection cavity through the cooling channel and then flow into the air duct; in the air flowing direction in the cooling channel, the end, close to the cooking cavity, of the cooling channel is a cooling channel first end, and the end, close to the smell detection cavity, of the cooling channel is a cooling channel second end; in the height direction of the box shell, the cooling channel first end is located on the side, close to the bottom end of the box shell, of the cooling channel second end. Condensate water in the cooling channel can conveniently flow back to the inner container from the first end of the cooling channel.

Description

Technical Field

[0001] The utility model relates to the field of kitchen equipment, in particular to a steam oven. Background Art

[0002] The steam oven may include a housing and an inner container, wherein a cooking cavity is provided in the inner container, and food to be cooked is placed in the cooking cavity to cook the food.

[0003] The steam oven also includes a heat dissipation duct and a heat dissipation fan. The fan can drive the flow of air to dissipate the heat of the steam oven.

[0004] Currently, some steam ovens on the market often overcook food, significantly reducing its flavor. This not only wastes ingredients but also creates significant safety hazards. To detect the doneness of food, some steam ovens are equipped with cameras, but this results in higher costs and a more complex identification process. Some steam ovens are also equipped with oxygen sensors to address the need for detecting the doneness of some pastry ingredients, but the doneness of meat cannot be detected. Some steam ovens are equipped with odor sensors, but these are placed inside the air duct. During operation, the fan draws air from outside the inner tank into the air duct and then exhausts the air inside the air duct, resulting in a low odor concentration of the food in the air duct. Although the odor can be detected, the accuracy of the doneness detection is poor, making it easy to misjudge. Therefore, the present application proposes a steam oven. Summary of the Invention

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, according to an embodiment of the present disclosure, a steam oven is provided, comprising:

[0007] box shell;

[0008] An inner pot is arranged in the box shell and has a cooking cavity formed therein;

[0009] an air duct housing disposed within the box shell and having an air duct formed therein, the air duct being located outside and above the cooking cavity; an air duct inlet and an air duct outlet being formed on the air duct housing, the air duct inlet and the air duct outlet being in communication with the air duct;

[0010] a first fan, at least partially disposed within the air duct, the first fan rotating to cause air outside the air duct to flow into the air duct through the air duct inlet, and to cause air inside the air duct to flow out of the air duct through the air duct outlet;

[0011] An air guide member is provided in the box shell, and the air guide member includes:

[0012] an odor detection cavity, communicating with the air duct and capable of communicating with the cooking cavity;

[0013] an exhaust pipe connected between the cooking cavity and the odor detection cavity;

[0014] An odor detection device is provided in the housing, and the odor detection device includes:

[0015] an odor sensing portion, disposed in the odor detection cavity to detect the gas in the odor detection cavity;

[0016] A cooling channel is formed in the exhaust pipe, and the cooling channel is located in the air duct;

[0017] Along the air flow direction in the cooling channel, the end of the cooling channel close to the cooking cavity is the first end of the cooling channel, and the end of the cooling channel close to the odor detection cavity is the second end of the cooling channel;

[0018] In the height direction of the box shell, the first end of the cooling channel is located on a side of the second end of the cooling channel close to the bottom end of the box shell;

[0019] When the odor detection cavity and the cooking cavity are in communication, the first fan rotates to allow the air in the cooking cavity to flow into the odor detection cavity through the cooling channel and then into the air duct.

[0020] The temperature of the gas in the cooking cavity is relatively high. When the high-temperature gas in the cooking cavity flows to the odor detection device, it will affect the detection accuracy and service life of the odor detection device. In order to avoid the influence of the high-temperature gas on the odor detection device, the gas in the air guide needs to be cooled. A cooling channel is provided and the cooling channel is located in the air duct, so that the air flowing in the air duct can exchange heat with the air in the cooling channel through the pipe wall of the exhaust pipe, and the air flowing in the air duct is used to cool the air in the cooling channel. Cooling the air in the cooling channel will cause the air in the cooling channel to condense. The cooling channel is provided in the height direction of the box shell, and the first end of the cooling channel is located on the side of the second end of the cooling channel close to the bottom of the box shell, so that the condensed water in the cooling channel can flow back to the inner tank from the first end of the cooling channel, and the condensed water can be reused, saving resources, and avoiding flowing out of the cooling channel from the second end of the cooling channel and flowing into the air duct, so as to avoid blowing out the condensed water in the air duct and avoiding the illusion of water leakage to the user.

[0021] According to an embodiment of the present disclosure, the cooling channel has a cooling channel cross section perpendicular to the extension direction of the cooling channel, and the lowest point of the cooling channel cross section is the lowest point of the cooling cross section; of any two lowest points of the cooling cross section of the cooling channel, along the air flow direction in the cooling channel, the lowest point of the cooling cross section close to the cooking cavity is the first point, and the lowest point of the cooling cross section close to the odor detection cavity is the second point;

[0022] In the height direction of the box shell, the first point is flush with the second point or the first point is located on the side of the second point close to the bottom end of the box shell. The condensed water flows downward, which can make the water in the cooling channel flow to the first end of the cooling channel and then flow back to the inner tank conveniently.

[0023] According to an embodiment of the present disclosure, a plane perpendicular to the height direction of the box shell is defined as a first plane;

[0024] The cooling channel comprises:

[0025] A first reflow section, whose extension direction is parallel to the first plane or whose extension direction is arranged at a first angle to the first plane;

[0026] Along the air flow direction in the cooling channel, the end of the first reflux section close to the cooking cavity is not higher than the end of the first reflux section away from the cooking cavity, so as to facilitate the condensed water to flow back to the inner pot.

[0027] According to an embodiment of the present disclosure, the first reflux section has at least two sections; the cooling channel includes:

[0028] The first connecting section is connected between two adjacent first reflux sections; along the air flow direction in the cooling channel, the end of the first connecting section close to the cooking cavity is not higher than the end of the first connecting section away from the cooking cavity, so as to facilitate the condensed water to flow back to the inner pot.

[0029] According to an embodiment of the present disclosure, the inner pot includes an inner pot top wall provided at the top of the inner pot, a cooking cavity air outlet is formed on the inner pot top wall, and the cooking cavity air outlet connects the cooling channel and the cooking cavity.

[0030] According to an embodiment of the present disclosure, the inner pot includes an inner pot top wall provided on the top of the inner pot, and a cooking cavity air outlet is formed on the inner pot top wall;

[0031] The air guide is inserted into the air outlet of the cooking cavity. A first outlet channel is formed in the air guide. The first outlet channel connects the cooking cavity and the cooling channel.

[0032] Providing a cooking cavity air outlet can allow the air in the cooking cavity to flow into the air guide member and then be guided into the odor detection cavity, thereby ensuring that the odor of the food in the odor detection cavity is strong and improving the detection accuracy of the odor detection device; providing the cooking cavity air outlet on the top wall of the inner pot can better produce an induced effect, so that when the first fan rotates, the air in the cooking cavity can be directly discharged upward and into the air guide member, and the gas in the cooking cavity can be introduced into the odor detection cavity, thereby preventing the air from flowing back into the cooking cavity from the air duct.

[0033] According to an embodiment of the present disclosure, in the height direction of the box shell, the cooking cavity air outlet is located on the side of the first end of the cooling channel close to the bottom end of the box shell, which can facilitate the condensed water in the cooling channel to flow back into the inner pot, thereby avoiding the accumulation of condensed water in the cooling channel and clogging the cooling channel.

[0034] According to an embodiment of the present disclosure, the air guide comprises:

[0035] An odor detection box is connected to the air duct shell. The odor detection chamber is formed in the odor detection box. A detection chamber air outlet and a detection chamber air inlet are formed on the odor detection box. The detection chamber air outlet connects the odor detection chamber and the air duct; the cooling channel and the odor detection chamber are connected through the detection chamber air inlet.

[0036] According to an embodiment of the present disclosure, in the height direction of the box shell, the first end of the cooling channel is located on the side of the detection chamber air inlet close to the bottom end of the box shell, so that the condensed water in the cooling channel flows to the first end of the cooling channel as much as possible, avoiding flowing into the odor detection chamber, avoiding the condensed water from entering the air duct, and avoiding the condensed water from being blown out of the air duct to affect the user experience.

[0037] According to an embodiment of the present disclosure, a steam oven includes:

[0038] box shell;

[0039] An inner pot is disposed in the box shell and has a cooking cavity formed therein; the inner pot includes an inner pot top wall located at the top thereof, a cooking cavity air outlet is formed on the inner pot top wall, and the cooking cavity air outlet is communicated with the cooking cavity;

[0040] an air duct housing disposed within the box shell and having an air duct formed therein, the air duct being located outside and above the cooking cavity; an air duct inlet and an air duct outlet being formed on the air duct housing, the air duct inlet and the air duct outlet being in communication with the air duct;

[0041] a first fan, at least partially disposed within the air duct, the first fan rotating to cause air outside the air duct to flow into the air duct through the air duct inlet, and to cause air inside the air duct to flow out of the air duct through the air duct outlet;

[0042] An air guide member is provided in the box shell, and the air guide member includes:

[0043] An odor detection box having an odor detection cavity formed therein, the odor detection cavity being in communication with the air duct and being communicable with the cooking cavity; and a detection cavity air inlet being in communication with the odor detection cavity being formed on the odor detection box;

[0044] an exhaust pipe connected between the cooking cavity and the odor detection cavity;

[0045] An odor detection device is provided in the housing, and the odor detection device includes:

[0046] an odor sensing portion, disposed in the odor detection cavity to detect the gas in the odor detection cavity;

[0047] A cooling channel is formed in the exhaust pipe, and the cooling channel is located in the air duct;

[0048] When the odor detection cavity and the cooking cavity are connected, the first fan rotates to allow air in the cooking cavity to flow into the odor detection cavity through the cooking cavity air outlet, the cooling channel, and the detection cavity air inlet, and then into the air duct;

[0049] In the height direction of the box shell, the cooking cavity air outlet is located on the side of the detection cavity air inlet close to the bottom of the box shell, which facilitates the condensed water in the cooling channel to flow back to the inner pot through the cooking cavity air outlet, and can reuse the condensed water to save resources, and avoid flowing from the detection cavity air inlet to the odor detection cavity and the air duct, avoiding the condensed water from being blown out in the air duct, and avoiding the illusion of water leakage to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a front view of a steam oven according to an embodiment of the present application;

[0051] Figure 2 is a side view of a steam oven according to an embodiment of the present application;

[0052] Figure 3 This is a partial structural perspective diagram of a steam oven according to an embodiment of the present application;

[0053] Figure 4 is a partial structural diagram of a steam oven according to an embodiment of the present application;

[0054] Figure 5 is a partial structural cross-sectional view of a steam oven according to an embodiment of the present application;

[0055] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0056] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0057] Figure 8 is another partial structural sectional view of the steam oven according to an embodiment of the present application;

[0058] Figure 9 This is a partial structural diagram of the steam oven from another perspective according to an embodiment of the present application;

[0059] Figure 10 This is a partial structural diagram of the steam oven from another perspective according to an embodiment of the present application;

[0060] Figure 11 This is a partial structural diagram of the steam oven from another perspective according to an embodiment of the present application;

[0061] Figure 12 is another partial structural sectional view of the steam oven according to an embodiment of the present application;

[0062] Figure 13 yes Figure 12 A partial enlarged view of point C in the middle;

[0063] Figure 14 is another partial structural exploded view of the steam oven according to an embodiment of the present application;

[0064] Figure 15 is another partial structural exploded view of the steam oven according to an embodiment of the present application;

[0065] Figure 16 is a structural diagram of an odor detection box according to an embodiment of the present application;

[0066] Figure 17 is a top view of a partial structure of a steam oven according to an embodiment of the present application;

[0067] Figure 18 is another partial structural exploded view of the steam oven according to an embodiment of the present application;

[0068] Figure 19 This is a partial structural diagram of the steam oven from another perspective according to an embodiment of the present application;

[0069] Figure 20 is a structural diagram of a drying element according to an embodiment of the present application;

[0070] Figure 21 This is a front view of a partial structure of a steam oven according to an embodiment of the present application;

[0071] Figure 22 This is another partial structural sectional view of the steam oven according to an embodiment of the present application.

[0072] In the above figures: steam oven 100; box shell 1; inner pot 2; cooking cavity 21; cooking cavity opening 211; inner pot top wall 22; cooking cavity air outlet 221; box door 3; air duct shell 4; air duct 41; air duct air inlet 42; air duct air outlet 43; first air duct shell 44; first top plate 441; first air inlet 4411; first side plate 442; second through hole 4421; first fan 51; air guide 6; odor detection box 61; odor detection cavity 611; detection cavity air outlet 612; detection box top plate 613; first through hole 6131; detection box side plate 614; detection cavity air inlet 615; switch valve 62; switch valve air outlet 621; switch valve Shut-off valve air inlet 622; exhaust pipe 63; first guide channel 6301; second guide channel 6302; cooling pipe 631; cooling channel 6311; first end 63111 of cooling channel; second end 63112 of cooling channel; first return section 63113; first connecting section 63114; first guide pipe 632; second guide pipe 633; ​​drying element 65; outlet pipe 66; outlet channel 661; first fixing element 67; odor detection device 7; odor sensing part 71; air duct cover 81; fan chamber air inlet 811; fan chamber air outlet 812; second fan 83; first heating element 84; second heating element 85; first heating section 851. DETAILED DESCRIPTION

[0073] In order to make the purpose and implementation of this application clearer, the exemplary implementation of this application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only part of the embodiments of this application, not all of the embodiments.

[0074] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0075] In the specification and claims of this application and the accompanying drawings, the terms "first," "second," "third," etc. are used to distinguish similar or similar objects or entities, and are not necessarily intended to limit a particular order or sequence, unless otherwise noted. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances.

[0076] The terms "comprise," "comprises," and "having," and any variations thereof, are intended to cover but not exclude inclusion; for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0077] The present application proposes a steam oven 100 , which will be described below with reference to the accompanying drawings.

[0078] In this application, reference is made to Figure 1-Figure 2 The steam oven 100 may include a housing 1. The housing 1 may be used to protect components located inside the housing 1.

[0079] The height direction of the housing 1 can be from the bottom to the top of the housing 1. The housing 1 can have a length direction. The length direction of the housing 1 can be from one side end to the other side end of the housing 1. The housing 1 can have a front-to-back direction. The front of the housing 1 can be the side of the housing 1 facing the user. Among the height direction, length direction, and front-to-back direction of the housing 1, any two directions are perpendicular to each other.

[0080] refer to Figure 3 The steam oven 100 may include an inner container 2. The inner container 2 may be disposed within the housing 1. A cooking cavity 21 may be formed within the inner container 2. The cooking cavity 21 may be a cavity for placing ingredients during cooking. A cooking cavity opening 211 may be provided at the front end of the cooking cavity to facilitate placing ingredients into or removing ingredients from the cooking cavity.

[0081] refer to Figure 1-Figure 3 The steam oven 100 may include a door 3. The door 3 may be connected to the housing to open or close the cooking cavity opening. The door 3 may be rotatably connected to the housing. The door 3 may be located at the front end of the cooking cavity.

[0082] In the present application, a steam oven may include a steam device. The steam device may be disposed within the housing. The steam device may be disposed outside the inner container. The steam device is configured to generate steam. The steam device is connected to the cooking cavity of the inner container via a pipeline, thereby delivering the generated steam through the pipeline into the cooking cavity, thereby realizing the steaming function of the steam oven.

[0083] The steam oven may include a water purification box. The water purification box may be arranged in the box shell. The water purification box is connected to the steam device and is used to supply water to the steam device.

[0084] In this application, reference is made to Figure 4-Figure 7 The steam oven 100 may include an air duct housing 4. The air duct housing 4 may be disposed within the housing 1. An air duct 41 may be formed within the air duct housing 4. The air duct 41 may be located outside the cooking cavity. The air duct 41 may be located above the cooking cavity.

[0085] An air duct inlet 42 may be formed on the air duct housing 4. The air duct inlet 42 may be an entrance for air outside the air duct to enter the air duct. The air duct inlet may be in communication with the air duct.

[0086] An air duct outlet 43 may be formed on the air duct housing 4. The air duct outlet may be an outlet for the air in the air duct to flow out of the air duct. The air duct outlet may be in communication with the air duct.

[0087] In the present application, the steam oven may include a first fan 51. The first fan 51 may be at least arranged in the air duct. The first fan rotates to allow air outside the air duct to flow into the air duct through the air duct inlet, and to allow air in the air duct to flow out of the air duct through the air duct outlet.

[0088] In the present application, the first blower 51 may include a first fan. The first blower 51 may include a first motor. The first motor may be connected to the first fan. The first motor drives the first fan to rotate, so that air outside the air duct flows into the air duct through the air duct inlet, and the air inside the air duct flows out of the air duct through the air duct outlet.

[0089] In the present application, the first fan 51 may be a cross-flow fan. The first fan 51 may be located at the air inlet of the air duct. The air outlet of the air duct may be located at the front end of the air duct. The air outlet of the air duct may be located in front of the air inlet of the air duct.

[0090] In this application, reference is made to Figure 4-Figure 5 The steam oven 100 may include an air guide 6. The air guide 6 may be arranged in the box shell. The air guide 6 may be used to guide the gas in the cooking cavity into the air duct.

[0091] refer to Figure 8 The air guide 6 may include an odor detection cavity 611. The odor detection cavity 611 may be formed in the air guide 6. The odor detection cavity may be connected to the air duct. The odor detection cavity may be connected to the cooking cavity.

[0092] When the odor detection cavity is communicated with the cooking cavity, the first fan rotates to allow the air in the cooking cavity to flow into the odor detection cavity and then into the air duct.

[0093] refer to Figure 8 The steam oven may include an odor detection device 7. The odor detection device may be disposed within the housing. The odor detection device may be connected to the air guide. The odor detection device may include an odor sensing portion 71. The odor sensing portion 71 may be disposed within the odor detection chamber to detect gas within the odor detection chamber.

[0094] The air duct and the first fan are provided so that air outside the air duct can flow into the air duct through the air duct inlet, and the air inside the air duct can flow out of the air duct through the air duct outlet, so that the air in the air duct is flowing and can dissipate heat from the steam oven. The odor detection chamber is provided in communication with the cooking chamber and the air duct, so that when the first fan rotates, the air flowing in the air duct will produce an induced effect, so that the air in the cooking chamber flows into the odor detection chamber through the air guide and then flows into the air duct. The air in the odor detection chamber comes from the cooking chamber, and the odor of the food in the air is relatively strong. The odor sensing part of the odor detection device is provided in the odor detection chamber, which can accurately detect the gas in the odor detection chamber and judge the maturity of the current food based on the accurate detection results. This can avoid overcooking of the food, ensure a good taste of the food, and avoid the occurrence of danger caused by overcooking.

[0095] In the present application, the odor detection device 7 may be an odor detection sensor. The odor detection sensor can be used to detect volatile organic compounds released by food during cooking to determine the degree of food maturity. The controller can then perform further control based on the degree of maturity to ensure adequate cooking and avoid overcooking.

[0096] An odor detection sensor may include an odor receptor. When the odor receptor comes into contact with gas, a chemical or physical reaction occurs, causing changes in electrical properties within the odor receptor, such as resistance or capacitance. The odor detection sensor can convert gas components into electrical signals, which can then be converted into digital signals. Processing of the digital signals can identify the type and concentration of volatile organic compounds (VOCs) to determine the doneness of food.

[0097] In this application, reference is made to Figure 9 The air guide 6 may include an exhaust pipe 63. The exhaust pipe 63 may be connected between the cooking cavity and the odor detection cavity to guide the air in the cooking cavity to the odor detection cavity.

[0098] refer to Figure 10-12 A cooling channel 6311 may be formed in the exhaust pipe 63. The cooling channel 6311 may be located in the air duct.

[0099] When the odor detection cavity and the cooking cavity are connected, the first fan rotates to allow the air in the cooking cavity to flow into the odor detection cavity through the cooling channel and then into the air duct.

[0100] Along the air flow direction in the cooling channel, the end of the cooling channel close to the cooking cavity is the cooling channel first end 63111. The end of the cooling channel close to the odor detection cavity is the cooling channel second end 63112.

[0101] In the height direction of the box shell, the first end of the cooling channel is located on a side of the second end of the cooling channel close to the bottom end of the box shell.

[0102] The temperature of the gas in the cooking cavity is relatively high. When the high-temperature gas in the cooking cavity flows to the odor detection device, it will affect the detection accuracy and service life of the odor detection device. In order to avoid the influence of the high-temperature gas on the odor detection device, the gas in the air guide needs to be cooled. A cooling channel is provided and the cooling channel is located in the air duct, so that the air flowing in the air duct can exchange heat with the air in the cooling channel through the pipe wall of the exhaust pipe, and the air flowing in the air duct is used to cool the air in the cooling channel. Cooling the air in the cooling channel will cause the air in the cooling channel to condense. The cooling channel is provided in the height direction of the box shell, and the first end of the cooling channel is located on the side of the second end of the cooling channel close to the bottom of the box shell, so that the condensed water in the cooling channel can flow back to the inner tank from the first end of the cooling channel, and the condensed water can be reused, saving resources, and avoiding flowing out of the cooling channel from the second end of the cooling channel and flowing into the air duct, so as to avoid blowing out the condensed water in the air duct and avoiding the illusion of water leakage to the user.

[0103] In the present application, the cooling channel has a cooling channel cross section perpendicular to its extension direction, with the lowest point of the cooling channel cross section being the center of the cooling cross section. Of any two lowest points of the cooling channel cross section, the lowest point of the cooling channel cross section near the cooking cavity, along the air flow direction within the cooling channel, is the first lowest point, and the lowest point of the cooling channel cross section near the odor detection cavity is the second lowest point.

[0104] In the height direction of the box shell, the first point is flush with the second point or the first point is located on the side of the second point close to the bottom of the box shell. The condensed water flows downward, which can make the water in the cooling channel flow to the first end of the cooling channel and then flow back to the inner tank conveniently.

[0105] In this application, a plane perpendicular to the height direction of the housing is defined as a first plane M1. The cooling channel may include a first recirculation section 63113. The extension direction of the first recirculation section may be parallel to the first plane, or the extension direction of the first recirculation section may be arranged at a first angle with the first plane, the first angle being an acute angle. Along the direction of air flow in the cooling channel, the end of the first recirculation section closest to the cooking cavity is no higher than the end of the first recirculation section away from the cooking cavity, thereby facilitating the flow of condensed water back into the inner pot.

[0106] In the present application, the first reflux section can have at least two sections. The cooling channel can include a first connecting section 63114. The first connecting section can connect between two adjacent first reflux sections. Along the air flow direction within the cooling channel, the end of the first connecting section closest to the cooking cavity should be no higher than the end of the first connecting section farther from the cooking cavity, facilitating the return of condensed water to the inner pot.

[0107] In this application, reference is made to Figure 11 The inner pot may include an inner pot top wall 22. The inner pot top wall 22 may be provided at the top of the inner pot. A cooking cavity air outlet 221 may be formed on the inner pot top wall. The cooking cavity air outlet 221 may be in communication with the cooking cavity.

[0108] The cooking cavity air outlet connects the cooling channel and the cooking cavity. Providing the cooking cavity air outlet allows air within the cooking cavity to flow into the air guide and then into the odor detection cavity, ensuring a rich odor for the food within the odor detection cavity and improving the detection accuracy of the odor detection device. Positioning the cooking cavity air outlet on the top wall of the inner pot effectively creates an induced ejection effect, allowing the air within the cooking cavity to be directly discharged upward and into the air guide when the first fan rotates. This allows the gas within the cooking cavity to be directed into the odor detection cavity, preventing air from backflowing from the air duct into the cooking cavity.

[0109] In this application, reference is made to Figure 12 A first guide channel 6301 may be formed in the air guide member. The first guide channel is connected between the cooling channel and the air outlet of the cooking cavity. The first guide channel connects the cooling channel and the air outlet of the cooking cavity.

[0110] In the present application, the air guide is inserted into the air outlet of the cooking cavity. A first air guide channel 6301 may be formed in the air guide, and the first air guide channel connects the cooking cavity and the cooling channel.

[0111] In the present application, in the height direction of the box shell, the cooking cavity air outlet can be located on the side of the first end of the cooling channel close to the bottom end of the box shell, which can facilitate the condensed water in the cooling channel to flow back into the inner pot, avoiding the accumulation of condensed water in the cooling channel and clogging the cooling channel.

[0112] In the present application, in the height direction of the box shell, the first guide channel is located on the side of the second end of the cooling channel close to the bottom end of the box shell, which can facilitate the condensed water in the cooling channel to flow back into the inner tank.

[0113] The first flow guiding channel has a first flow guiding channel cross section perpendicular to an extension direction of the first flow guiding channel, and the lowest point of the first flow guiding channel cross section is the lowest point of the first flow guiding cross section; of any two lowest points of the first flow guiding cross section of the first flow guiding channel, the lowest point of the first flow guiding cross section near the cooking cavity along the air flow direction in the first flow guiding channel is the third point, and the lowest point of the first flow guiding cross section near the odor detection cavity is the fourth point;

[0114] In the height direction of the box shell, the third point is flush with the fourth point or the third point is located on a side of the fourth point close to the bottom end of the box shell.

[0115] In this application, reference is made to Figure 13The air guide includes an outlet pipe 66. The outlet pipe 66 is inserted into the cooking cavity air outlet. A outlet channel 661 is formed within the outlet pipe. The outlet channel connects the cooking cavity and the cooling channel. The outlet pipe 66 can be inserted into the cooking cavity air outlet from the cooking cavity side and then pass through the inner pot. The first air guide channel can include the outlet channel.

[0116] refer to Figure 13 The air guide may include a first fixing member 67, which may be disposed outside the inner pot. The first fixing member is connected to the outlet pipe and defines the outlet pipe within the air outlet of the cooking cavity.

[0117] In this application, reference is made to Figure 12-14 The exhaust pipe may include a cooling pipe 631, in which a cooling channel is formed. The exhaust pipe may include a first flow guide pipe 632. The first flow guide pipe is connected to the cooling pipe.

[0118] The first flow guide tube can be connected to the inner pot. Along the flow direction of air in the cooling tube, the end of the cooling tube closest to the cooking cavity is located outside the air duct, and the first flow guide tube and the interior of the cooling tube define a first flow guide channel. Alternatively, along the flow direction of air in the cooling tube, the end of the cooling tube closest to the cooking cavity is located within the air duct, and the first flow guide tube defines the first flow guide channel.

[0119] The first flow guide tube may be connected to the outlet tube. Along the flow direction of air in the cooling tube, the end of the cooling tube closest to the cooking cavity is located outside the air duct, and the first flow guide tube, the cooling tube, and the outlet tube define a first flow guide channel. Alternatively, along the flow direction of air in the cooling tube, the end of the cooling tube closest to the cooking cavity is located within the air duct, and the first flow guide tube and the outlet tube define a first flow guide channel.

[0120] In this application, reference is made to Figure 14-16 The air guide 6 may include an odor detection box 61. The odor detection box 61 may be connected to the air duct housing. An odor detection chamber 611 may be formed in the odor detection box 61. A detection chamber air outlet 612 may be formed on the odor detection box. The detection chamber air outlet may be connected to the odor detection chamber. The odor detection chamber and the air duct may be connected via the detection chamber air outlet.

[0121] A first air inlet 4411 may be formed on the air duct housing 4. The first air inlet 4411 may be connected to the air duct. The first air inlet may be arranged opposite the detection chamber air outlet. The odor detection chamber may be connected to the air duct via the detection chamber air outlet 612 and the first air inlet 4411.

[0122] An odor detection box is provided to facilitate the installation of an odor detection chamber. An air outlet of the detection chamber and a first air inlet are provided to facilitate the connection of the air duct between the odor detection chamber and the box.

[0123] In this application, reference is made to Figure 14The air duct housing 4 may include a first top plate 441. The first top plate 441 may be located in front of the first fan, and the first top plate 441 may be located at the top of the air duct.

[0124] The odor detection box 61 can be disposed on the first top plate 441 and connected to the first top plate. The detection cavity air outlet 612 can be located at the bottom of the odor detection cavity. The first air inlet can be formed on the first top plate.

[0125] In the present application, the air duct housing may include a first air duct housing 44. The first air duct housing 44 may include a first top plate 441.

[0126] In the present application, the bottom end of the odor detection box can be against the upper surface of the first top plate, so as to facilitate the fixing of the odor detection box on the first top plate. The odor detection box can be placed above the first air inlet so that all the gas in the odor detection cavity enters the air duct.

[0127] In the present application, the bottom end of the odor detection box can be inserted into the first air inlet or inserted into the air duct, so that all the gas in the odor detection cavity enters the air duct.

[0128] In this application, reference is made to Figure 14-16 The odor detection box may be formed with a first through hole 6131. ​​The odor detection device may be inserted into the first through hole from outside the odor detection box, making it convenient to place the odor sensing portion in the odor detection cavity.

[0129] In the present application, the odor detection box may include a detection box top plate 613. A first through-hole 6131 may be provided on the detection box top plate 613. The first through-hole 6131 connects the odor detection cavity with the space above the detection box top plate. The odor detection device may be inserted into the first through-hole from above the odor detection box, and the odor detection unit may be provided within the odor detection cavity.

[0130] The odor detection device can be connected to the top plate of the detection box to fix the odor detection device on the top plate of the detection box, which facilitates the fixation of the odor detection device.

[0131] In this application, reference is made to Figure 14-16 The odor detection box may include a detection box side panel 614. The detection box side panel 614 is connected to the bottom of the detection box top panel and is arranged in a circle along the outer edge of the detection box top panel. The bottom end of the detection box side panel abuts the top surface of the first top panel. The bottom end of the detection box side panel is sealed to the top surface of the first top panel to prevent the gas in the odor detection chamber from flowing out through the gap between the detection box side panel and the first top panel, ensuring that the gas in the odor detection chamber flows completely into the air duct.

[0132] In the present application, along the front-to-back direction of the box shell, the first air inlet can be located in front of the first fan, and the first air inlet can be located behind the air outlet of the air duct, so that the first air inlet is connected to the air duct.

[0133] In the present application, along the front-to-back direction of the box shell, the odor detection box can be located in front of the first fan, and the odor detection box can be located behind the air outlet of the air duct, so that the air outlet 612 of the detection cavity is arranged relative to the first air inlet, so that the air from the odor detection cavity flows into the air duct.

[0134] In this application, reference is made to Figure 14-16 The odor detection box may be formed with a detection cavity air inlet 615. The detection cavity air inlet 615 is communicated with the odor detection cavity.

[0135] When the odor detection cavity and the cooking cavity are connected, the first fan rotates to allow the air in the cooking cavity to flow into the odor detection cavity through the cooking cavity air outlet, the cooling channel and the detection cavity air inlet and then into the air duct.

[0136] In the present application, in the height direction of the box shell, the first end of the cooling channel is located on the side of the detection chamber air inlet close to the bottom of the box shell, so that the condensed water in the cooling channel flows to the first end of the cooling channel as much as possible, avoiding flowing into the odor detection chamber, avoiding the condensed water from entering the air duct, and avoiding the condensed water from being blown out of the air duct to affect the user experience.

[0137] In the present application, in the height direction of the box shell, the cooking cavity air outlet is located on a side of the detection cavity air inlet close to the bottom end of the box shell.

[0138] It is arranged in the height direction of the box shell, and the cooking cavity air outlet is located on the side of the detection cavity air inlet close to the bottom of the box shell, so that the condensed water in the cooling channel can flow back to the inner pot through the cooking cavity air outlet, and the condensed water can be reused to save resources. It also avoids the water flowing from the detection cavity air inlet to the odor detection cavity and the air duct, avoids the condensed water being blown out in the air duct, and avoids the illusion of water leakage to the user.

[0139] In this application, reference is made to Figure 17 A second flow guiding channel 6302 may be formed in the air guiding member, and the second flow guiding channel is connected between the cooling channel and the odor detection cavity.

[0140] The second guide channel can extend parallel to the first plane, or it can extend at a second angle to the first plane. The second angle can be acute. Along the flow direction of air within the second guide channel, the end of the second guide channel closest to the cooling channel is no higher than the end of the second guide channel closest to the odor detection chamber, ensuring that condensed water within the second guide channel flows toward the cooling channel as much as possible.

[0141] In this application, reference is made to Figure 18-19The air guide member may include an on-off valve 62. The on-off valve 62 connects or isolates the odor detection chamber and the cooking chamber, conveniently controlling whether the gas in the cooking chamber can flow into the odor detection chamber. When the odor detection device is not needed for detection, the odor detection chamber and the cooking chamber can be isolated, thereby increasing the service life of the odor detection device.

[0142] In the present application, a switch valve air outlet 621 may be formed on the switch valve 62. The switch valve air outlet may be communicated with the odor detection chamber so that the gas passing through the switch valve flows into the odor detection chamber.

[0143] The switch valve 62 may be formed with a switch valve air inlet 622. The switch valve air inlet may be communicated with the cooking cavity so that the gas in the cooking cavity can flow into the switch valve.

[0144] The switch valve is opened or closed so that the switch valve air inlet and the switch valve air outlet are connected or isolated, so that the cooking cavity and the odor detection cavity are connected or isolated.

[0145] In the present application, along the direction of air flow in the air guide, the switch valve can be located between the odor detection chamber and the cooling channel. There is sufficient space and it is convenient to set up. After passing through the cooling channel, the gas temperature is reduced, which can prevent the high-temperature gas from affecting the switch valve.

[0146] In the present application, along the direction of air flow in the air guide, the switch valve can be located between the cooking cavity and the cooling channel, so that when odor detection is not performed, the air duct will not cool the gas in the cooling channel, so that the air duct can better dissipate heat from the steam oven.

[0147] In this application, reference is made to Figure 18-19 The exhaust pipe 63 may include a second flow conduit 633. One end of the second flow conduit 633 may be connected to the odor detection box. The other end of the second flow conduit 633 may be connected to the switch valve.

[0148] A first sub-flow guiding channel may be formed in the second flow guiding tube 633. The second flow guiding channel 6302 may include a first sub-flow guiding channel. The first sub-flow guiding channel may connect the switch valve outlet and the odor detection chamber.

[0149] In the present application, the switch valve can be located in front of the first blower along the front-to-back direction of the housing, and the switch valve is located behind the odor detection box. Along the front-to-back direction of the housing, the second flow guide pipe is located between the switch valve and the odor detection box.

[0150] In the present application, one end of the cooling tube can be connected to the switch valve, and the other end of the cooling tube can be connected to the inner tank. Alternatively, the other end of the cooling tube can be connected to the first flow guide tube.

[0151] In this application, reference is made to Figure 10The air duct housing may be provided with a second through-hole 4421. The second through-hole connects the air duct with the space outside the air duct. The cooling tube is inserted into the air duct through the second through-hole and exits the air duct through the second through-hole. The second through-hole may be located at the end of the air duct along the length of the housing.

[0152] In the present application, there may be two second through holes. The two second through holes may be arranged sequentially along the length direction of the box body. The two second through holes may be located at both ends of the air duct in the length direction of the box body.

[0153] The cooling channel can be located in front of the first fan. The space in front of the first fan is relatively large, which facilitates the arrangement of the cooling channel.

[0154] In the present application, the second through-hole can be provided on the first air duct housing. The first air duct housing can include two first side panels 442. The two first side panels can be provided at both ends of the first air duct housing in the longitudinal direction of the housing. The second through-hole can be provided on the first side panel. The two second through-holes can be provided on the two second side panels, respectively.

[0155] In the present application, the first reflux section can be arranged along the length direction of the box shell. Several first reflux sections can be arranged in sequence along the front-to-back direction of the box shell, which can fully utilize the space allocated in the front-to-back direction of the box shell and reduce the overall height of the steam oven.

[0156] In this application, reference is made to Figure 20 The air guide may include a drying element 65. Along the air flow direction within the air guide, the drying element may be positioned between the cooking chamber and the cooling duct, or between the odor detection chamber and the cooling duct. Specifically, the drying element may be positioned between the odor detection chamber and the on / off valve, or between the cooling duct and the on / off valve. The presence of the drying element can reduce the humidity of the air flowing into the odor detection chamber, thereby preventing high humidity from reducing the detection accuracy of the odor detection device.

[0157] The drying element may include a drying housing. A drying chamber may be formed within the drying housing. The drying chamber is connected between the cooking chamber and the odor detection chamber along the direction of air flow within the air guide. The drying element may include a desiccant. The desiccant may be disposed within the drying chamber to dry the air flowing through the drying chamber.

[0158] In the present application, the drying element can be arranged vertically so that the desiccant in the drying element can be concentrated at the bottom of the drying chamber, so that all the gas passing through the drying chamber flows through the desiccant, which can dry the air and avoid the high air humidity from affecting the detection accuracy of the odor detection device.

[0159] In this application, reference is made to Figure 21-22The liner may include an liner rear wall 22. The liner rear wall may be located at the rear end of the liner.

[0160] The steam oven 100 may include an air duct cover 81. The air duct cover 81 may be disposed within the inner container. The air duct cover 81 may be disposed in front of the rear wall of the inner container. The air duct cover 81 and the rear wall of the inner container may define a fan cavity 82. The fan cavity may be located behind the cooking cavity.

[0161] A fan cavity air inlet 811 may be formed on the air duct cover 81. The fan cavity air inlet may connect the cooking cavity and the fan cavity, so that the fan cavity air inlet is an entrance for the air in the cooking cavity to enter the fan cavity.

[0162] A fan cavity air outlet 812 may be formed on the air duct cover 81. The fan cavity air outlet 812 may connect the cooking cavity and the fan cavity, so that the fan cavity air outlet 812 is an outlet for the air in the fan cavity to flow out into the cooking cavity.

[0163] The steam oven 100 may include a second fan 83. The second fan 83 may be disposed in the fan cavity to drive the air in the cooking cavity to flow into the fan cavity through the fan cavity air inlet and then flow back to the cooking cavity through the fan cavity air outlet, thereby forming an air circulation.

[0164] The second blower 83 may include a second fan. The second blower may include a second motor. The second motor may be connected to the second fan to drive the second fan to rotate. The second motor drives the second fan to rotate, driving air in the cooking cavity into the blower cavity through the blower cavity inlet and then back into the cooking cavity through the blower cavity outlet.

[0165] Setting up a second fan can establish air circulation between the fan cavity and the cooking cavity, making the air temperature and humidity in each location in the cooking cavity and the fan cavity relatively uniform, avoiding large temperature or humidity differences between two locations that are far apart, and avoiding uneven cooking caused by large temperature differences.

[0166] In the present application, in the front-to-back direction of the box shell, the cooking cavity air outlet can be located in front of the air duct cover, which can avoid the flow of air driven by the rotation of the second fan to affect the air outlet at the cooking cavity air outlet, and avoid the air in the air duct being sucked into the cooking cavity through the cooking cavity air outlet, thereby avoiding the backflow of air; the cooking cavity air outlet is set on the top wall of the inner pot and located in the front side of the air duct cover, which can better produce the induced effect, so that when the first fan rotates, the gas in the cooking cavity can be introduced into the odor detection cavity, and the air can be prevented from flowing back from the air duct into the cooking cavity.

[0167] In the present application, the second fan may be a centrifugal fan. The centrifugal fan may be disposed opposite the fan chamber air inlet. Air within the cooking chamber may enter the centrifugal fan through the fan chamber air inlet along the axial direction of the centrifugal fan and then flow out of the centrifugal fan along the radial direction of the centrifugal fan.

[0168] In this application, reference is made to Figure 21-22 The steam oven may include a first heating element 84. The first heating element 84 may be used to heat the air in the cooking cavity. The first heating element 84 may be at least partially disposed in the cooking cavity. The provision of the first heating element enables the steam oven to achieve a baking function.

[0169] In this application, reference is made to Figure 21-22 The steam oven may include a second heating element 85. The second heating element may be arranged in the blower cavity. The second heating element can heat the air in the blower cavity.

[0170] The second heating element may include a first heating section 851. The first heating section may surround the outside of the fan along the circumference of the fan. The first heating section may be spirally wound into at least two turns.

[0171] The second heating element 85 can heat the air after it flows out from the centrifugal fan, and the heated air flows back to the cooking cavity through the air outlet.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0173] For ease of explanation, the above description has been presented in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments have been selected and described to better explain the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A steam oven, characterized in that: include: box shell; An inner pot is arranged in the box shell and has a cooking cavity formed therein; an air duct housing disposed within the box shell and having an air duct formed therein, the air duct being located outside and above the cooking cavity; an air duct inlet and an air duct outlet being formed on the air duct housing, the air duct inlet and the air duct outlet being in communication with the air duct; a first fan, at least partially disposed within the air duct, the first fan rotating to cause air outside the air duct to flow into the air duct through the air duct inlet, and to cause air inside the air duct to flow out of the air duct through the air duct outlet; An air guide member is provided in the box shell, and the air guide member includes: an odor detection cavity, communicating with the air duct and capable of communicating with the cooking cavity; an exhaust pipe connected between the cooking cavity and the odor detection cavity; An odor detection device is provided in the housing, and the odor detection device includes: an odor sensing portion, disposed in the odor detection cavity to detect the gas in the odor detection cavity; a cooling channel is formed in the exhaust pipe, and the cooling channel is located in the air duct; Along the air flow direction in the cooling channel, the end of the cooling channel close to the cooking cavity is the first end of the cooling channel, and the end of the cooling channel close to the odor detection cavity is the second end of the cooling channel; In the height direction of the box shell, the first end of the cooling channel is located on a side of the second end of the cooling channel close to the bottom end of the box shell; When the odor detection cavity and the cooking cavity are in communication, the first fan rotates to allow the air in the cooking cavity to flow into the odor detection cavity through the cooling channel and then into the air duct.

2. The steam oven according to claim 1, characterized in that: The cooling channel has a cooling channel cross section perpendicular to an extension direction of the cooling channel, and the lowest point of the cooling channel cross section is the lowest point of the cooling cross section; of any two lowest points of the cooling channel cross section, along the air flow direction in the cooling channel, the lowest point of the cooling cross section close to the cooking cavity is the first point, and the lowest point of the cooling cross section close to the odor detection cavity is the second point; In the height direction of the box shell, the first point is flush with the second point or the first point is located on a side of the second point close to the bottom end of the box shell.

3. The steam oven according to claim 1, characterized in that: A plane perpendicular to the height direction of the box shell is defined as a first plane; The cooling channel comprises: A first reflow section, whose extension direction is parallel to the first plane or whose extension direction is arranged at a first angle to the first plane; Along the air flow direction in the cooling channel, an end of the first reflux section close to the cooking cavity is no higher than an end of the first reflux section away from the cooking cavity.

4. The steam oven according to claim 3, characterized in that: The first reflux section has at least two sections; the cooling channel includes: The first connecting section is connected between two adjacent first reflux sections; along the air flow direction in the cooling channel, an end of the first connecting section close to the cooking cavity is not higher than an end of the first connecting section away from the cooking cavity.

5. The steam oven according to claim 1, characterized in that: The inner pot includes an inner pot top wall provided on the top of the inner pot, a cooking cavity air outlet is formed on the inner pot top wall, and the cooking cavity air outlet connects the cooling channel and the cooking cavity.

6. The steam oven according to claim 1, characterized in that: The inner pot comprises an inner pot top wall provided on the top of the inner pot, and a cooking cavity air outlet is formed on the inner pot top wall; The air guide is inserted into the air outlet of the cooking cavity. A first outlet channel is formed in the air guide. The first outlet channel connects the cooking cavity and the cooling channel.

7. The steam oven according to claim 5 or 6, characterized in that: In the height direction of the box shell, the cooking cavity air outlet is located on a side of the first end of the cooling channel close to the bottom end of the box shell.

8. The steam oven according to claim 1, characterized in that: The air guide comprises: An odor detection box is connected to the air duct shell. The odor detection chamber is formed in the odor detection box. A detection chamber air outlet and a detection chamber air inlet are formed on the odor detection box. The detection chamber air outlet connects the odor detection chamber and the air duct; the cooling channel and the odor detection chamber are connected through the detection chamber air inlet.

9. The steam oven according to claim 8, characterized in that: In the height direction of the box shell, the first end of the cooling channel is located on a side of the air inlet of the detection cavity close to the bottom end of the box shell.

10. A steam oven, characterized in that: include: box shell; An inner pot is disposed in the box shell and has a cooking cavity formed therein; the inner pot includes an inner pot top wall located at the top thereof, a cooking cavity air outlet is formed on the inner pot top wall, and the cooking cavity air outlet is communicated with the cooking cavity; an air duct housing disposed within the box shell and having an air duct formed therein, the air duct being located outside and above the cooking cavity; an air duct inlet and an air duct outlet being formed on the air duct housing, the air duct inlet and the air duct outlet being in communication with the air duct; a first fan, at least partially disposed within the air duct, the first fan rotating to cause air outside the air duct to flow into the air duct through the air duct inlet, and to cause air inside the air duct to flow out of the air duct through the air duct outlet; An air guide member is provided in the box shell, and the air guide member includes: An odor detection box having an odor detection cavity formed therein, the odor detection cavity being in communication with the air duct and being communicable with the cooking cavity; and a detection cavity air inlet being in communication with the odor detection cavity being formed on the odor detection box; an exhaust pipe connected between the cooking cavity and the odor detection cavity; An odor detection device is provided in the housing, and the odor detection device includes: an odor sensing portion, disposed in the odor detection cavity to detect the gas in the odor detection cavity; a cooling channel is formed in the exhaust pipe, and the cooling channel is located in the air duct; When the odor detection cavity and the cooking cavity are connected, the first fan rotates to allow air in the cooking cavity to flow into the odor detection cavity through the cooking cavity air outlet, the cooling channel, and the detection cavity air inlet, and then into the air duct; In the height direction of the box shell, the cooking cavity air outlet is located on a side of the detection cavity air inlet close to the bottom end of the box shell.

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