Microwave steamer oven

Abstract

The present application provides a microwave steaming oven, comprising: an oven body, a hollow part inside the oven body forms a cooking cavity; a microwave generating part, configured to generate microwaves and conduct the microwaves into the cooking cavity to heat food to be heated; a heating device and a hot air fan, configured to form hot air from the heat generated by the heating device and send the hot air into the cooking cavity; a temperature sensor, configured to sense the temperature of the hot air; and a sensor microwave shielding cover, comprising a cover body, wherein the cover body comprises a plurality of holes, the holes are configured to shield microwaves from entering the sensor through the microwave shielding cover, the cover body is a columnar structure, and the side facing the hot air has a non-planar structure, wherein along the direction of the hot air, the cross-sectional area of the non-planar structure in the plane perpendicular to the direction of the hot air gradually increases. The embodiment of the present application can make the packaging of the temperature sensor and the microwave shielding more strict, and the measurement is more accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen electrical appliances, and in particular to a microwave steaming oven. BACKGROUND

[0002] In the field of kitchen electrical appliances, a microwave steaming oven is usually provided with a temperature sensor or a temperature probe. The temperature sensor or the temperature probe in the prior art has no shielding cover or the shielding cover is not completely sealed, especially at the joint between the metal shell and the shielding wire, which can transmit microwaves of different frequencies, thereby greatly affecting the AD sampling result of the temperature sensor. Therefore, the temperature value sensed by the temperature sensor or the temperature probe in the prior art is easily disturbed by the microwaves entering the temperature sensor, and the temperature value appears irregular jump when the microwave steaming oven is working, which seriously affects the accuracy of temperature measurement.

[0003] The contents of the background art section merely represent the knowledge of the inventors and do not necessarily represent the state of the art. SUMMARY

[0004] The embodiments of the present application solve the problem that the temperature value measured by the temperature sensor in the prior art is disturbed by microwaves by adding a shielding cover with a special structure to the outside of the temperature sensor.

[0005] In view of at least one defect of the prior art, the present application provides a microwave steaming oven, comprising:

[0006] a box body, a hollow part inside the box body forming a cooking cavity;

[0007] a microwave generating part configured to generate microwaves and conduct the microwaves into the cooking cavity to heat food to be heated;

[0008] a heating device and a hot air fan configured to form hot air from the heat generated by the heating device and send the hot air into the cooking cavity;

[0009] a temperature sensor configured to sense the temperature of the hot air; and

[0010] a sensor microwave shielding cover, the sensor microwave shielding cover comprising a cover body, wherein the cover body comprises a plurality of holes, the holes being configured to shield microwaves from entering the sensor through the microwave shielding cover, the cover body being a columnar structure and having a non-planar structure on the side facing the hot air, wherein along the direction of the hot air, the cross-sectional area of the non-planar structure in the plane perpendicular to the direction of the hot air gradually increases.

[0011] According to an aspect of the present application, the side of the cover body facing the hot air is configured to allow water droplets attached to the cover body to flow along the direction of the hot air.

[0012] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0013] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0014] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0015] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0016] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0017] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0018] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0019] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0020] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0021] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0022] According to an aspect of the present application, the cover has a cylindrical structure, a semi-circular arc structure or a conical structure.

[0023] According to one aspect of the present application, a steam hole plate is further included, which is disposed below the sidewall or the bottom of the cooking cavity and has a plurality of small holes formed thereon through which the steam is dispersed into the cooking cavity.

[0024] According to one aspect of the present application, a plurality of steam ports are formed in the rear portion of the cooking cavity or on the sidewall thereof, through which the steam is dispersed into the cooking cavity.

[0025] According to one aspect of the present application, a partition wall is further included, which is disposed between the circulating fan and the cooking cavity and has a plurality of circulating holes formed thereon, wherein the circulating fan is configured to cause the gas in the cooking cavity to exit the cooking cavity through a portion of the circulating holes and re-enter the cooking cavity through another portion of the circulating holes.

[0026] The embodiment of the present application solves the problem of inaccurate measurement caused by the microwave entering the temperature sensor or the temperature probe due to the loose packaging and shielding in the prior art by adding a shielding cover outside the temperature sensor or the temperature probe and arranging the shielding cover to have a non-planar structure with gradually increasing cross-sectional area in the plane perpendicular to the direction of the hot air in the direction of the hot air, thereby improving the measurement accuracy of the temperature sensor. The temperature sensor shielding cover of the present application has the prominent features of simple structure and easy manufacturing and installation. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation of the present application. In the drawings:

[0028] Figure 1 A schematic view of a sensor microwave shielding cover according to one embodiment of the present application is shown;

[0029] Figure 2A 、 Figure 2B 、 Figure 2C Schematic views of the cross section of the non-planar structure in the plane perpendicular to the direction of the hot air in the direction of the hot air in a sensor microwave shielding cover according to one embodiment of the present application are shown, respectively;

[0030] Figure 3 A side view of the internal structure of a microwave steaming oven according to one embodiment of the present application is shown; and

[0031] Figure 4 A side view of the internal structure of a microwave steaming oven according to another embodiment of the present application is shown. DETAILED DESCRIPTION

[0032] In the following certain exemplary embodiments are simply described. As will be realized by those skilled in the art, the described embodiments can be modified in various different ways without departing from the spirit or scope thereof. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature rather than restrictive.

[0033] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0034] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0038] Figure 1 FIG. 1 shows a schematic diagram of a sensor microwave shield according to an embodiment of the present invention. Figure 1 As shown, the sensor microwave shielding cover 10 includes a cover body 11, wherein the cover body 11 includes a plurality of holes 12, and the holes 12 are configured to shield microwaves from entering the sensor through the microwave shielding cover 10, but allow hot air to pass through. The cover body 11 is a columnar structure, and has a non-planar structure 13 on the side facing the hot air, wherein the cross-sectional area of ​​the non-planar structure 13 in a plane perpendicular to the hot air direction gradually increases along the hot air direction (see below). Figure 2A 、 Figure 2B 、 Figure 2C The sensor microwave shielding cover 10 further includes a base 14 connected to the cover body 11. The base 14 is mounted on the inner wall of the microwave oven and is used to cover the sensor microwave shielding cover 10 over the sensor, such as a temperature sensor, to shield microwaves from the microwave oven toward the temperature sensor.

[0039] Figure 2A 、 Figure 2B 、 Figure 2C Schematic diagrams of cross-sections of non-planar structures in a sensor microwave shield according to an embodiment of the present invention are shown. According to an embodiment of the present invention, the shield body 11 has a cylindrical structure, a semicircular arc structure or a conical structure, such as Figure 2A 、 Figure 2B 、 Figure 2C As shown, the cross-section of the cover body 11 parallel to the hot air direction is respectively semicircular, semicircular arc and triangular from left to right. Figure 1 and Figure 2A 、 Figure 2B 、 Figure 2CAs shown, along the hot air direction (i.e. the direction from right to left in the figure), the non-planar structure 13 gradually increases in cross-sectional area in the plane perpendicular to the hot air direction, due to the gradually increasing radius or angle of the semi-circular, semi-arc or triangular cross-section of the non-planar structure 13 parallel to the hot air direction. When the hot air is blown from right to left in the figure towards the cover 11, the water droplets adhering to the cover 11 will flow along the radius or angle of the semi-circular, semi-arc or triangular cross-section of the non-planar structure 13 from right to left in the hot air direction, rather than being blown directly into the cover 11, thereby affecting the measurement accuracy of the temperature sensor 10.

[0040] According to an embodiment of the present application, the structure of the cover 11 is not limited to having the three specific non-planar structures 13 on the side facing the hot air. Those skilled in the art will understand that any structure of the cover 11 that can cause the water droplets adhering to the cover 11 to flow along the hot air direction rather than being blown directly into the cover 11, and can use the hot air to destroy the water film tension on the windward side of the cover, falls within the scope of the present application.

[0041] According to an embodiment of the present application, in order to enable the cover 11 to both tightly shield the microwaves emitted from the microwave steaming oven and enable the hot air to pass through, ensuring that the real-time temperature acquisition of the temperature sensor 10 is not affected, the aperture of the hole 12 on the cover 11 is set to be less than one quarter of the wavelength of the microwaves. According to an embodiment of the present application, the material of the cover 11 is metal.

[0042] Figure 3 A side view of the internal structure of a microwave steaming oven according to an embodiment of the present application is shown. As shown, the microwave steaming oven 100 comprises a box body 110, a microwave generating portion 120, a heating device 130 and a hot air fan 140, a temperature sensor 150, and a sensor microwave shielding cover 10. The hollow portion inside the box body 110 forms a cooking cavity 101, in which food is placed to be heated and processed. The microwave generating portion 120 is optionally arranged at the top of the cooking cavity 101, configured to generate microwaves and conduct the microwaves into the cooking cavity 101 to heat the food to be heated. The heating device 130 and the hot air fan 140 are optionally arranged at the rear of the cooking cavity 101, configured to form hot air from the heat generated by the heating device 130 and send the hot air into the cooking cavity 101. The temperature sensor 150 is configured to sense the temperature of the hot air. The sensor microwave shielding cover 10 is arranged outside the temperature sensor 150, configured to shield the microwaves generated by the microwave steaming oven 100 from interfering with the temperature sensor 150, to ensure the measurement accuracy and stability of the temperature sensor 150. For details, please refer to the description of the sensor microwave shielding cover 10. Figure 3 As shown, the microwave steaming oven 100 comprises a box body 110, a microwave generating portion 120, a heating device 130 and a hot air fan 140, a temperature sensor 150, and a sensor microwave shielding cover 10. The hollow portion inside the box body 110 forms a cooking cavity 101, in which food is placed to be heated and processed. The microwave generating portion 120 is optionally arranged at the top of the cooking cavity 101, configured to generate microwaves and conduct the microwaves into the cooking cavity 101 to heat the food to be heated. The heating device 130 and the hot air fan 140 are optionally arranged at the rear of the cooking cavity 101, configured to form hot air from the heat generated by the heating device 130 and send the hot air into the cooking cavity 101. The temperature sensor 150 is configured to sense the temperature of the hot air. The sensor microwave shielding cover 10 is arranged outside the temperature sensor 150, configured to shield the microwaves generated by the microwave steaming oven 100 from interfering with the temperature sensor 150, to ensure the measurement accuracy and stability of the temperature sensor 150. For details, please refer to the description of the sensor microwave shielding cover 10.Figure 1 and Figure 2A , 2B , as shown in FIG. 2C, the sensor microwave shielding cover 10 comprises a cover body 11, wherein the cover body 11 comprises a plurality of holes 12 configured to shield microwaves from entering the sensor 10 through the microwave shielding cover 10, but allow hot air to pass through. The cover body 11 is a columnar structure, and the side facing the hot air has a non-planar structure 13, wherein the cross-sectional area of the non-planar structure 13 in the plane perpendicular to the direction of the hot air gradually increases along the direction of the hot air. For the specific structure of the microwave shielding cover 10, please refer to Figure 1 and the above description, which will not be repeated here.

[0043] According to one embodiment of the present application, as shown in Figure 3 , the microwave steaming oven 100 further comprises an air duct 160 above the cooking cavity 101, wherein the end of the air duct 160 away from the heating device 130 gradually narrows. Alternatively, the air duct 160 can start narrowing from the end close to the heating device 130, or from any part of the middle of the air duct 160 in the direction away from the heating device 130, so that the hot air is dispersed into the cooking cavity 101 along the air duct 160. The hot air fan 140 is arranged at the back of the heating device 130, when the heating device 130 generates heat, the hot air fan 140 transmits the heat along the air duct 160 from the back of the microwave steaming oven 100 to the front and downward to fill the entire air duct 160 and the cooking cavity 101.

[0044] Figure 4 A side view of the internal structure of a microwave steaming oven according to another embodiment of the present application is shown. As shown in Figure 3 and Figure 4 , according to one preferred embodiment of the present application, the vertical cross-section of the air duct 160 is trapezoidal or triangular. When the heat is transmitted along the air duct 160 from the back of the microwave steaming oven 100 to the front, due to the "ramp" 161 formed by one of the oblique sides of the trapezoidal or triangular cross-section, the heat is forced to change its original horizontal flow direction and flow into the lower part of the microwave steaming oven 100, i.e. the cooking cavity 101, and gradually fill the entire cooking cavity 101.

[0045] According to one embodiment of the present application, as shown in Figure 3 , the temperature sensor 150 is arranged in the air duct 160, away from the heating device 130 and the hot air fan 140, to sense the temperature of the hot air blown out from the heating device 130 and the hot air fan 140.

[0046] According to one embodiment of the present application, asFigure 1 and Figure 3 As shown in FIG. 10, the base 14 of the sensor microwave shield 10 is installed on the sidewall of the cabinet 110 inside the air duct 160, tightly covering the temperature sensor 150. The non-planar structure 13 of the sensor microwave shield 10 is arranged to face the direction of the hot air, so that the non-planar structure 13 faces the hot air, and the water droplets flow along the direction of the hot air without hanging on the non-planar structure 13.

[0047] According to an embodiment of the present application, as shown in FIG. 11, the microwave steaming oven 100 further comprises a steam generator 170, which is configured to blow steam generated and released by the steam generator 170 into the cooking cavity 101. Figure 3

[0048] According to an embodiment of the present application, as shown in FIG. 12, the microwave steaming oven 100 further comprises a circulating fan 180, which is configured to increase the air flow in the cooking cavity 101, so that the hot air and / or the steam circulates in the cooking cavity 101 to be uniformly distributed. Figure 3

[0049] According to an embodiment of the present application, as shown in FIG. 13, the heating device 130 is a carbon heating tube, the circulating fan 180 is a turbine fan, and the steam generator 170 is a steam boiler. Specifically, the turbine fan is arranged to suck air from the center region of the cooking cavity 101 when the turbine fan rotates, and then blow air from the surrounding region of the turbine fan, so as to realize circulation of air in the cooking cavity 101, and finally make the steam uniformly fill the entire cooking cavity 101. Figure 3

[0050] According to an embodiment of the present application, the microwave steaming oven 100 further comprises a controller (not shown in the figure), which is coupled with the microwave generating portion 120, the heating device 130, the steam generator 170 and the temperature sensor 150, and is configured to control the microwave generating portion 120 to generate microwaves, monitor the humidity in the cooking cavity 101, control the steam generator 170 to generate steam according to the temperature of the hot air sensed by the temperature sensor 150 and the humidity, and control the heating temperature of the heating device 130.

[0051] According to an embodiment of the present application, as shown in FIG. 14, the microwave steaming oven 100 further comprises a steam generator 170, which is configured to blow steam generated and released by the steam generator 170 into the cooking cavity 101. Figure 3 and Figure 4 ​​​As shown, the microwave steaming oven 100 further comprises a hot air hole plate 162, which is arranged at the junction of the air duct 160 and the cooking cavity 101, and is provided with a plurality of small holes, through which the hot air is dispersed into the cooking cavity 101, so that the hot air evenly fills the cooking cavity 101.

[0052] According to an embodiment of the present application, as shown in Figure 3 and Figure 4 As shown, the microwave steaming oven 100 further comprises a steam hole plate 171, which is arranged at the bottom of the cooking cavity 101, and is provided with a plurality of small holes, through which the steam is dispersed into the cooking cavity 101. Through the steam hole plate 171, the steam generated by the steam generator 170 can more evenly fill the cooking cavity 101, and better moisten the bottom of the food, retaining the fresh taste of the food.

[0053] According to an embodiment of the present application, as shown in Figure 3 and Figure 4 As shown, the microwave steaming oven 100 further comprises a steam hole plate 171, which is arranged at the bottom of the cooking cavity 101, and is provided with a plurality of small holes, through which the steam is dispersed into the cooking cavity 101. Through the steam hole plate 171, the steam generated by the steam generator 170 can more evenly fill the cooking cavity 101, and better moisten the bottom of the food, retaining the fresh taste of the food.

[0054] According to an embodiment of the present application, as shown in Figure 3 and Figure 4 As shown, the microwave steaming oven 100 further comprises a steam hole plate 171, which is arranged at the bottom of the cooking cavity 101, and is provided with a plurality of small holes, through which the steam is dispersed into the cooking cavity 101. Through the steam hole plate 171, the steam generated by the steam generator 170 can more evenly fill the cooking cavity 101, and better moisten the bottom of the food, retaining the fresh taste of the food. Figure 3 In the embodiment shown in the drawings, the steam generator 170 is located behind the circulating fan 180, but the present application is not limited thereto. The steam generator 170 can also be located below the circulating fan 180, and the steam is sent into the cooking cavity through the steam hole plate 181 or the steam port 182 via a separate pipeline.

[0055] In addition, in the embodiment of the present application, the heating device 130 and the hot air fan 140 are used to generate hot air, and the steam generator 170 is used to generate steam and supply the steam to the cooking cavity. The two are separate devices and can be controlled separately, i.e., can be turned on or off separately, so that they can be flexibly applied to heating various types of food.

[0056] The embodiment of the present application solves the problem of inaccurate measurement caused by the microwave entering the temperature sensor or temperature probe due to the loose packaging and shielding in the prior art by externally arranging a microwave shielding cover with a special structure for the temperature sensor or temperature probe, wherein the shielding cover has a non-planar structure with a cross-sectional area gradually increasing in a plane perpendicular to the direction of the hot air in the direction of the hot air. The embodiment improves the measurement accuracy, stability and real-time performance of the temperature sensor. The temperature sensor shielding cover of the present application has the outstanding features of simple structure and easy installation.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A microwave steam oven, comprising: A box body, wherein the hollow portion inside the box body forms a cooking cavity; a microwave generating unit configured to generate microwaves and transmit the microwaves into the cooking cavity to heat the food to be heated; A heating device and a hot air fan are configured to convert heat generated by the heating device into hot air and send the hot air into the cooking cavity; a temperature sensor configured to sense the temperature of the hot air; and A sensor microwave shielding cover, the sensor microwave shielding cover includes a cover body, wherein the cover body includes a plurality of holes, the holes are configured to shield microwaves from passing through the microwave shielding cover and entering the sensor, the aperture of the holes is set to be less than a quarter of the microwave wavelength, and the side facing the hot wind has a non-planar structure, wherein the cross-sectional area of ​​the non-planar structure in a plane perpendicular to the direction of the hot wind gradually increases along the direction of the hot wind, the cover body has a conical structure, and the side of the cover body facing the hot wind is set to allow water droplets attached to the cover body to flow along the direction of the hot wind instead of being blown directly into the cover body.

2. The microwave steaming oven according to claim 1, wherein the cover is made of metal, and the microwave steaming oven further comprises an air duct located above the cooking cavity, wherein the hot air is dispersed into the cooking cavity along the air duct.

3. The microwave steaming oven according to claim 2, wherein the temperature sensor is arranged in the air duct at a side away from the heating device and the hot air fan.

4. The microwave steaming oven according to claim 3, wherein the sensor microwave shielding cover further comprises a base connected to the cover body, and the base is installed on the side wall of the box body. 5 . The microwave steaming oven according to claim 1 , further comprising a steam generator, wherein the steam generator is configured to blow steam generated and released by the steam generator into the cooking cavity.

6. The microwave steaming oven according to claim 5, further comprising a circulation fan, wherein the circulation fan is configured to increase air flow in the cooking cavity so that the hot air and / or the steam are evenly distributed in the cooking cavity.

7. The microwave steaming oven according to claim 2, wherein the air duct gradually narrows at one end away from the heating device.

8. The microwave steam oven according to claim 6, wherein the heating device is a carbon heating tube, the circulating fan is a turbo fan, and the steam generator is a steam boiler.

9. The microwave steaming oven according to claim 8, further comprising a controller, wherein the controller is coupled to the microwave generating portion, the heating device, the steam generator and the temperature sensor respectively, and is configured to control the microwave generating portion to generate microwaves and monitor the humidity in the cooking cavity, and control the steam generator to generate steam and control the heating temperature of the heating device according to the temperature of the hot air and the humidity sensed by the temperature sensor.

10. The microwave steam oven according to claim 2, further comprising a hot air hole plate, wherein the hot air hole plate is arranged at the junction of the air duct and the cooking cavity, and is provided with a plurality of small holes, and the hot air is dispersed into the cooking cavity through the hot air hole plate.

11. The microwave steam oven according to claim 1, further comprising a steam hole plate, wherein the steam hole plate is arranged below the side wall or the bottom of the cooking cavity and has a plurality of small holes thereon, and the steam is dispersed into the cooking cavity through the steam hole plate.

12. The microwave steaming oven according to claim 1, wherein a plurality of steam ports are provided at a lower rear portion or on a side wall of the cooking cavity, and the steam is dispersed into the cooking cavity through the plurality of steam ports.

13. The microwave steam oven according to claim 6, further comprising a partition wall arranged between the circulation fan and the cooking cavity, wherein a plurality of circulation holes are provided on the partition wall, wherein the circulation fan is configured so that the gas in the cooking cavity leaves the cooking cavity through a portion of the circulation holes and re-enters the cooking cavity through another portion of the circulation holes.

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