Air frying microwave oven

Abstract

The utility model provides an air frying microwave oven which comprises an oven cavity, a hot air structure is arranged on the upper portion of the oven cavity, the hot air structure comprises a heating pipe, the heating pipe is located in the oven cavity, the oven cavity comprises a top plate, and the top plate partially protrudes upwards to form a first receding part used for containing the heating pipe. The structure of the top plate is improved so that the heating pipe can be directly installed in the oven cavity, the distance between the heating pipe and food to be cooked is close, the middle of the heating pipe and the food is not shielded, generated heat radiation can directly act on the surface of the food, and the cooking effect is good; and meanwhile, the first avoiding part located above the heating pipe can prevent excessive heat from being conducted upwards to cause overheating of the top, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of food heating devices, and particularly to an air fry microwave oven. Background Art

[0002] With the improvement of living standards, the cooking methods of food are becoming more and more diversified, and a single kitchen appliance is difficult to meet the usage needs of consumers. An air fry microwave oven is a kitchen appliance integrating the functions of an air fryer and a microwave oven. It has a broad market prospect because it can use high-temperature air circulation and / or microwave radiation to quickly heat, thaw and cook food, and occupies a small space.

[0003] Most of the existing air fry microwave ovens are based on traditional microwave ovens, and the functions of microwave heating and air fry heating are superimposed by adding an air fry component on the top of the microwave oven. However, at this time, the temperature in the furnace cavity is often lower than the working temperature in the furnace of the air fryer, resulting in poor baking effect on food; in addition, because the air fry component is attached to the top shell and lacks heat insulation design, the temperature above the air fry microwave oven is extremely high in the air fry mode, posing a risk of scalding.

[0004] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0005] The problems solved by the present utility model are that the unreasonable structure of the existing air fry microwave oven leads to poor cooking effect; at the same time, the temperature at the top is too high, posing a safety hazard.

[0006] To solve the above problems, the present utility model provides an air fry microwave oven, including a furnace cavity, a hot air structure is arranged at the upper part of the furnace cavity, the hot air structure includes a heating tube, the heating tube is located in the furnace cavity, the furnace cavity includes a top plate, and a first avoidance part is formed by upward convexity of a part of the top plate for accommodating the heating tube.

[0007] This setting improves the structure of the top plate so that the heating tube is directly installed in the furnace cavity. The heating tube is close to the food to be cooked and there is no obstruction in the middle. The generated heat radiation can directly act on the surface of the food, and the cooking effect is good; at the same time, the first avoidance part above the heating tube can prevent excessive heat from being conducted upward to cause overheating at the top, and the safety is high.

[0008] Preferably, the first avoidance part extends along the length direction of the top plate and the cross section is V-shaped or arc-shaped or isosceles trapezoidal. This setting is beneficial to the specular reflection of the radiation heat generated by the heating tube into the furnace cavity, which is beneficial to improving the baking effect of food; the modification to the existing structure is small, and at the same time, it will not affect the normal use of the microwave oven.

[0009] Preferably, the hot air structure further includes a partition member and a fan. The partition member is disposed between the housing assembly and the top plate to form two hot air chambers respectively communicating with the furnace cavity. The fans are respectively disposed in the hot air chambers, and the rotation directions of the two fans are opposite. This setting enables the two relatively independent hot air chambers to communicate with the furnace cavity respectively and the overall flow direction of the air flow to be opposite, thereby facilitating the realization of 3D stereoscopic air circulation in the furnace cavity. At the same time, the existing turntable in the microwave oven is used to rotate the food to make the heating more uniform.

[0010] Preferably, the blades of the fan are of a special-shaped leaf offset structure. This setting has good air flow and low noise, and is simple in structure and occupies little space.

[0011] Preferably, the hot air structure includes a housing assembly. The housing assembly is located on one side of the first avoidance portion. The hot air structure further includes a motor drivingly connected to the fan. The fan is disposed between the housing assembly and the top plate, and ventilation holes are provided at positions corresponding to the housing assembly on the top plate.

[0012] This setting utilizes the housing assembly to form a relatively enclosed space on top of the top plate, and uses the fan to drive the hot air flow between the furnace cavity and the housing assembly, that is, on the upper and lower sides of the top plate, so as to make the temperature in the furnace cavity more uniform and the baking effect better.

[0013] Preferably, the top plate is provided with a second avoidance portion. The second avoidance portion and the first avoidance portion are respectively located on both sides of the ventilation hole for accommodating the two heating tubes. The projection of the housing assembly on the horizontal plane is rectangular and the width is L 1 , and the maximum width between the first avoidance portion and the second avoidance portion is L 2 、and the maximum width between the heating tubes is L 3 , where L 3 <L 2 <L 1 . This setting can strengthen the top plate by using the housing assembly, and at the same time can block the radiant heat generated by the heating tubes from further conducting upward, which is beneficial to heat preservation in the furnace cavity and prevents potential safety hazards caused by excessive temperature at the top of the microwave oven.

[0014] Preferably, the housing assembly includes an inner housing and an outer housing. The two sides of the inner housing are respectively abutted and assembled with the first avoidance portion and the second avoidance portion. The outer housing is disposed above the inner housing. The fan is located on the side of the inner housing away from the outer housing, and the motor is fixed on the side of the outer housing away from the inner housing. This setting can utilize the inner housing and the outer housing to not only form a space for the assembly of the fan and the motor, but also improve the mechanical strength of the housing assembly to ensure stable and reliable operation.

[0015] Preferably, the inner cover includes a bottom plate, and connecting plates placed vertically are respectively arranged at both ends of the bottom plate. A second flat plate is arranged at one end of the connecting plate away from the bottom plate for abutting and assembling with the top plate. The outer cover includes a first mounting plate, and the first mounting plate is located above the bottom plate with a height difference therebetween. This setting can create a gap between the inner cover and the outer cover, preventing the heat of the inner cover from being quickly conducted to the outer cover, and at the same time enabling the housing assembly to have good mechanical strength.

[0016] Preferably, the first mounting plate is provided with a receiving groove, and a second assembly hole is formed by partial downward depression on the peripheral side of the receiving groove. A first assembly hole is provided at a position on the bottom plate corresponding to the second assembly hole, and the first assembly hole abuts against the second assembly hole for fixing the motor. This setting can fix the inner cover, the outer cover and the motor with one screw, preventing abnormal noise generated by the housing assembly due to air flow vibration.

[0017] Preferably, first inclined plates are respectively arranged on both sides of the bottom plate, a first flat plate is arranged on one side of the first inclined plate away from the bottom plate, and limit members are respectively arranged at both ends of the first flat plate for limiting and fixing the heating tube. This setting has a simple structure and is convenient for disassembly, assembly and maintenance operations.

[0018] Compared with the prior art, the air fry microwave oven according to the embodiment of the present invention has the following beneficial effects: 1) The emission tube provided in the furnace cavity not only reduces the linear distance from the food, but also part of the generated thermal radiation directly acts on the surface of the food, and the other part of the thermal radiation can also directly act on the inside of the furnace cavity through specular reflection, improving the cooking effect on the food; 2) The heat of the heating tube can be effectively prevented from being conducted upward through the top plate and the housing assembly, which is safer and has low energy consumption; 3) By respectively arranging fans on both sides of the partition member, it is beneficial to realize 3D stereo air circulation in the furnace cavity, making the food heated more evenly. Description of the Drawings

[0019] Figure 1 is an internal schematic diagram of the air fry microwave oven according to the embodiment of the present invention;

[0020] Figure 2 is an exploded view of the hot air structure and the furnace cavity according to the embodiment of the present invention;

[0021] Figure 3 is Figure 2 a partial enlarged view of part A in

[0022] Figure 4 is a schematic diagram of the assembly position of the fan in the furnace cavity according to the embodiment of the present invention;

[0023] Figure 5 is a top view of the assembly position of the fan in the furnace cavity according to the embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional view of the air fry microwave oven according to the embodiment of the present utility model along the A-A side;

[0025] Figure 7 This is a cross-sectional view of the air fry microwave oven according to the embodiment of the present utility model along the B-B side;

[0026] Figure 8 This is a schematic structural view of the limiting member according to the embodiment of the present utility model.

[0027] Explanation of reference numerals:

[0028] 100 - air fry microwave oven; 110 - oven cavity; 111 - rear plate; 112 - top plate; 1121 - first avoidance part; 1122 - second avoidance part; 1123 - ventilation hole; 113 - U-shaped frame; 120 - hot air structure; 121 - housing assembly; 1211 - inner housing; 12111 - bottom plate; 12112 - first inclined plate; 12113 - first flat plate; 12114 - connecting plate; 12115 - second flat plate; 12116 - flanging; 12117 - annular rib; 12118 - first assembly hole; 12119 - first reinforcing rib; 1212 - outer housing; 12121 - first mounting plate; 12122 - second mounting plate; 12123 - second reinforcing rib; 12124 - receiving groove; 12125 - second assembly hole; 122 - separating member; 123 - heating tube; 124 - limiting member; 1241 - first plate; 1242 - second plate; 1243 - avoidance notch; 1244 - hemming; 1245 - third reinforcing rib; 1246 - arc-shaped notch; 125, fan; 126, motor; 130 - housing; 140 - magnetron. Detailed implementation manners

[0029] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the drawings. On the premise of no conflict, the technical features in the embodiments of the present utility model can be combined with each other.

[0030] In daily life, when people heat different foods, they often need to use a variety of cooking devices. With the progress of technology, the air fry microwave oven, as a new type of cooking device, is increasingly favored by people. It has both the microwave penetration heating function and the heating tube radiation heating function. One air fry microwave oven is directly equivalent to having the functions of an air fryer, a microwave oven, an oven and a defroster, saving kitchen space. The structure of the existing air fry microwave oven is unreasonable, resulting in a relatively low internal temperature of the oven cavity 110 in the air fry mode and affecting the baking effect; in addition, the top temperature of the air fry microwave oven is too high during operation, posing a risk of scalding. Therefore, the applicant proposes the following technical solutions:

[0031] As shown Figures 1-8 in the figure, an air fryer microwave oven 100 includes a cooking cavity 110. A hot air structure 120 is arranged at the upper part of the cooking cavity 110. The hot air structure 120 includes a heating tube 123. The heating tube 123 is located inside the cooking cavity 110. The cooking cavity 110 includes a top plate 112. A first avoidance part 1121 is formed by partial upward convexity of the top plate 112 for accommodating the heating tube 123.

[0032] By improving the structure of the top plate 112, the heating tube 123 is directly installed inside the cooking cavity 110. The distance between the heating tube 123 and the food to be cooked is relatively close and there is no obstruction in the middle. The generated heat radiation can directly act on the surface of the food, and the cooking effect is good. At the same time, the first avoidance part 1121 above the heating tube 123 can prevent excessive heat from being conducted upward to cause overheating at the top, and the safety is high. The modification to the existing structure is small and it will not affect the normal use of the microwave oven. The cooking cavity 110 further includes a rear plate 111 and a U-shaped frame 113. One side of the U-shaped frame 113 forms an electrical cavity with the outer shell 130 for accommodating components such as a magnetron 140. The related structure and assembly relationship are prior art.

[0033] As an example of the present utility model, the first avoidance part 1121 extends along the length direction of the top plate 112 and its cross section is V-shaped or circular arc-shaped or isosceles trapezoidal. This setting is beneficial to the specular reflection of the radiant heat generated by the heating tube 123 and is beneficial to improving the baking effect of the food. Preferably, both ends of the heating tube 123 are anti-microwave leakage spiral heating wire structures.

[0034] The hot air structure 120 includes a housing assembly 121. The housing assembly 121 is located on one side of the first avoidance part 1121. The hot air structure 120 further includes a fan 125 and a motor 126 which are drivingly connected. The fan 125 is arranged between the housing assembly 121 and the top plate 112. Ventilation holes 1123 are arranged at the corresponding positions of the top plate 112 and the housing assembly 121. This setting uses the housing assembly 121 to form a relatively closed space on the top of the top plate 112, and uses the fan 125 to drive the hot air flow to flow between the cooking cavity 110 and the housing assembly 121, that is, on the upper and lower sides of the top plate 112, so as to make the temperature in the cooking cavity 110 more uniform and the baking effect better.

[0035] Preferably, there are two heating tubes 123. The top plate 112 is provided with a second avoidance part 1122. The second avoidance part 1122 and the first avoidance part 1121 are respectively located on both sides of the ventilation hole 1123 for accommodating the heating tubes 123. This setting can make full use of the internal space of the microwave oven and is beneficial to the uniform heating inside the microwave oven.

[0036] Preferably, the housing assembly 121 includes an inner housing 1211 and an outer housing 1212. The end of the inner housing 1211 abuts against the first avoidance portion 1121. The outer housing 1212 is disposed above the inner housing 1211. The fan 125 is located on the side of the inner housing 1211 away from the outer housing 1212. The motor 126 is fixed on the side of the outer housing 1212 away from the inner housing 1211. The projection of the housing assembly 121 on the horizontal plane is rectangular and has a width of L 1 The maximum width between the first avoidance portion 1121 and the second avoidance portion 1122 is L 2 The maximum width between the heating tubes 123 is L 3 where L 3 < L 2 < L 1 This setting can strengthen the top plate 112 by using the housing assembly 121. At the same time, it can block the radiant heat generated by the heating tubes 123 from further conducting upward, which is beneficial to heat preservation in the furnace cavity 110 and can prevent potential safety hazards caused by excessive temperature at the top of the microwave oven

[0037] As an example of the present invention, the inner housing 1211 includes a bottom plate 12111. First inclined plates 12112 are respectively disposed on both sides of the bottom plate 12111. A first flat plate 12113 is disposed on the side of the first inclined plate 12112 away from the bottom plate 12111. The first flat plate 12113 abuts and is connected to the first avoidance portion 1121 or the second avoidance portion 1122. Connecting plates 12114 are respectively disposed at both ends of the bottom plate 12111. The connecting plates 12114 and the first inclined plates 12112 are respectively located on the upper and lower sides of the bottom plate 12111. A second flat plate 12115 is disposed at the end of the connecting plate 12114 away from the bottom plate 12111 for abutting and assembling with the top plate 112. This setting can be assembled with the top plate 112 through the first flat plate 12113 and the second flat plate 12115 to form a relatively enclosed space, with uniform stress and not easily bent and deformed

[0038] Preferably, flanges 12116 are disposed on both sides of the connecting plate 12114 for assembling with the top plate 112. This setting can limit the inner housing 1211 in the horizontal and vertical directions, increase the mechanical strength of the top plate 112, and further improve the sealing performance between the housing assembly 121 and the top plate 112, resulting in good cooking effects

[0039] Preferably, the outer housing 1212 includes a first mounting plate 12121. Second mounting plates 12122 are respectively disposed on both sides of the first mounting plate 12121. The second mounting plates 12122 abut and are connected to the first flat plate 12113. The height difference between the first mounting plate 12121 and the second mounting plates 12122 is H 1, the height difference between the bottom plate 12111 and the first flat plate 12113 is H 2 , where H 1 <H 2 This setting can create a gap between the inner cover 1211 and the outer cover 1212, preventing the heat of the inner cover 1211 from quickly conducting to the outer cover 1212, and at the same time enabling the housing assembly 121 to have good mechanical strength.

[0040] Preferably, the first mounting plate 12121 is provided with a receiving groove 12124. A second assembly hole 12125 is formed by the downward depression of the peripheral part of the receiving groove 12124. A first assembly hole 12118 is provided at a position on the bottom plate 12111 corresponding to the second assembly hole 12125. The first assembly hole 12118 is formed by the upward protrusion of a part of the bottom plate 12111. The first assembly hole 12118 and the second assembly hole 12125 are in contact with each other for fixing the motor 126. This setting can fix the inner cover 1211, the outer cover 1212 and the motor 126 simultaneously with one screw, preventing the housing assembly 121 from generating abnormal noises due to air flow vibration.

[0041] Preferably, the bottom plate 12111 is provided with an annular rib 12117. There are multiple first assembly holes 12118 and they are evenly distributed along the inner peripheral side of the annular rib 12117. This setting can strengthen the bottom plate 12111 to ensure stable and reliable assembly. Preferably, first reinforcing ribs 12119 are respectively provided at both ends of the bottom plate 12111. The first reinforcing ribs 12119 protrude towards the first mounting plate 12121. The first mounting plate 12121 is provided with second reinforcing ribs 12123 on the side close to the bottom plate 12111. The first reinforcing ribs 12119 and the second reinforcing ribs 12123 are in contact with each other. This setting can ensure that the ends of the inner cover 1211 and the outer cover 1212 are in contact, making the overall force evenly and stably distributed.

[0042] Preferably, a limiting member 124 is provided at the end of the first mounting plate 12121 for limiting and fixing the heating tube 123. As an example of the present invention, the limiting member 124 includes a first plate 1241 and a second plate 1242 connected by a fold angle. An avoidance notch 1243 is provided between the first plate 1241 and the second plate 1242. Flanges 1244 are provided on both sides of the avoidance notch 1243, and the flanges 1244 extend along the length direction of the heating tube 123. This setting can use the flanges 1244 and the avoidance notch 1243 to limit and fix the heating tube 123 to prevent it from shifting. Preferably, arc-shaped notches 1246 are provided on both sides of the avoidance notch 1243. Arc-shaped notches 1246 connected to the avoidance notch 1243 are provided on the first plate 1241. The arc-shaped notches 1246 are located on both sides of the avoidance notch 1243, and the first plate 1241 is provided with a third reinforcing rib 1245. This setting can enable the flanges 1244 to have a certain deformation space to ensure close fitting with the heating tube 123.

[0043] Preferably, the hot air structure 120 further includes a partition member 122. The partition member 122 is disposed between the inner cover 1211 and the top plate 112 to form two hot air chambers respectively communicating with the furnace cavity 110. The hot air fans 125 are respectively disposed in the hot air chambers, and the rotation directions of the two hot air fans 125 are opposite. This setting enables the two relatively independent hot air chambers to communicate with the furnace cavity 110 respectively and the overall flow direction of the air flow to be opposite, which is beneficial to realizing 360-degree 3D stereo air circulation. At the same time, the existing turntable in the microwave oven is used to rotate the food to make the heating more uniform. Preferably, the fan blades of the hot air fan 125 have an irregular blade structure. This setting has the advantages of small air flow and low noise.

[0044] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. An air frying microwave oven, characterized in that: The invention comprises a furnace cavity (110), a hot air structure (120) is arranged on the upper part of the furnace cavity (110), the hot air structure (120) comprises a heating pipe (123), the heating pipe (123) is located in the furnace cavity (110), the furnace cavity (110) comprises a top plate (112), a portion of the top plate (112) protrudes upward to form a first avoidance portion (1121) for accommodating the heating pipe (123), the first avoidance portion (1121) is arranged along the top plate (112) The hot air structure (120) extends in the longitudinal direction of the furnace and has a V-shaped, circular arc-shaped, or isosceles trapezoidal cross-section for mirror reflection; the hot air structure (120) also includes a cover assembly (121), a partition (122), and a fan (125); the partition (122) is arranged between the cover assembly (121) and the top plate (112) to form two hot air chambers respectively connected to the furnace cavity (110); the fans (125) are respectively arranged in the hot air chambers, and the two fans (125) rotate in opposite directions.

2. The air fryer microwave oven according to claim 1, characterized in that: The blades of the fan (125) are of a special-shaped blade offset structure.

3. The air fryer microwave oven according to claim 1, characterized in that: The hot air structure (120) comprises a casing assembly (121), wherein the casing assembly (121) is located on one side of the first avoidance portion (1121), and the hot air structure (120) further comprises a motor (126) drivingly connected to the fan (125), wherein the fan (125) is arranged between the casing assembly (121) and the top plate (112), and ventilation holes (1123) are arranged at positions corresponding to the positions of the top plate (112) and the casing assembly (121).

4. The air frying microwave oven according to claim 3, characterized in that: The top plate (112) is provided with a second avoidance portion (1122); the second avoidance portion (1122) and the first avoidance portion (1121) are respectively located on both sides of the ventilation hole (1123) and are used to accommodate the two heating pipes (123); the projection of the cover assembly (121) on a horizontal plane is a rectangle with a width of L1; the maximum width between the first avoidance portion (1121) and the second avoidance portion (1122) is L2; ​​the maximum width between the heating pipes (123) is L3, wherein L3<L2<L1.

5. The air fryer microwave oven according to claim 4, characterized in that: The cover shell assembly (121) comprises an inner cover (1211) and an outer cover (1212); two sides of the inner cover (1211) are respectively abutted against the first avoidance portion (1121) and the second avoidance portion (1122); the outer cover (1212) is arranged above the inner cover (1211); the fan (125) is located on a side of the inner cover (1211) away from the outer cover (1212); and the motor (126) is fixed on a side of the outer cover (1212) away from the inner cover (1211).

6. The air fryer microwave oven according to claim 5, characterized in that: The inner cover (1211) comprises a bottom plate (12111), and vertically placed connecting plates (12114) are respectively arranged at both ends of the bottom plate (12111), and a second flat plate (12115) is arranged at one end of the connecting plate (12114) away from the bottom plate (12111) for abutting and assembling with the top plate (112); the outer cover (1212) comprises a first mounting plate (12121), and the first mounting plate (12121) is located above the bottom plate (12111) and there is a height difference between the two.

7. The air frying microwave oven according to claim 6, characterized in that: The first mounting plate (12121) is provided with a receiving groove (12124), the peripheral side portion of the receiving groove (12124) is recessed downward to form a second assembly hole (12125), and a first assembly hole (12118) is provided on the bottom plate (12111) at a position corresponding to the second assembly hole (12125), and the first assembly hole (12118) is abutted against the second assembly hole (12125) for fixing the motor (126).

8. The air frying microwave oven according to claim 7, characterized in that First inclined plates (12112) are respectively arranged on both sides of the bottom plate (12111), a first flat plate (12113) is arranged on a side of the first inclined plate (12112) away from the bottom plate (12111), and limiting members (124) are respectively arranged at both ends of the first flat plate (12113) for limiting and fixing the heating tube (123).

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