CN216431824U - A multi-functional culinary art subassembly and microwave oven for microwave oven - Google Patents

Abstract

The utility model provides a multi-functional culinary art subassembly for microwave oven, including convection current subassembly, heating element and culinary art chamber subassembly. The convection assembly comprises a motor, an upper convection cover and heating fan blades, the heating assembly comprises a convection net and a heating pipe, the cooking cavity assembly comprises a lower enclosing plate in a U shape and an upper cover plate arranged on the upper side of the lower enclosing plate, and an upper cover plate through hole is further formed in the upper cover plate. The convection net is accommodated in the through hole of the upper cover plate, the upper cover plate is covered above the lower cover plate, the upper convection cover is buckled on the upper side of the upper cover plate, the motor is installed above the upper convection cover, the heating fan blade is arranged between the upper convection cover and the convection net, the heating pipe is arranged on the lower side of the convection net, the motor drives the heating fan blade to rotate, the heating fan blade accelerates the air flow and blows the air flow downwards to the heating pipe, and the air flow flows downwards after being heated by the heating pipe.

Description

A multi-functional culinary art subassembly and microwave oven for microwave oven

Technical Field

The utility model relates to a microwave oven field of electrical apparatus is used in the kitchen particularly, especially relate to a multi-functional culinary art subassembly and microwave oven for microwave oven.

Background

With the continuous improvement of living standard, the diversified demands of consumers on food cooking modes are higher and higher, and the kitchen operation space is limited, so that the kitchen electric appliance with only a single function cannot meet the use demands of consumers due to the fact that the kitchen electric appliance occupies a large amount of space. Microwave ovens and air fryers are common kitchen appliances for most consumers, but they tend to be independent of each other and each occupies a large amount of kitchen space.

Therefore, the three-in-one microwave oven with the functions of microwave, air frying and oven has wide market prospect. However, the food processing principle of microwave ovens and ovens is different, wherein, the microwave oven establishes a microwave electric field in a microwave oven chamber through microwaves generated by a microwave generator, and takes certain measures to ensure that the microwave electric field is uniformly distributed in the oven chamber as much as possible, and food is utilized to absorb microwave energy in the microwave electric field to heat the food; the air fryer and the oven respectively bake the surface of the food in a convection mode and a radiation mode by generating high temperature through the heating device so as to heat the food. In view of the above, a three-in-one microwave oven with microwave, air-frying and oven functions needs to be compatible with three different cooking modes and also has a good balance with the volume of the cooking appliance.

In view of the above problems, utility model 201620867841.7 discloses an air fryer microwave oven, which comprises a oven body, an inner oven cavity, a hot air device at the rear side of the oven cavity, a glass rotary table arranged in the oven cavity and a ceramic vessel for containing food; a gap is reserved between the ceramic utensil and the glass rotating disc; the hot air device is communicated with the furnace chamber through the upper air inlet and the lower air outlet; the lower air outlet is aligned with the gap between the ceramic vessel and the glass turntable; the bottom surface of the ceramic vessel is provided with a plurality of through holes, and the aperture of the upper ends of the through holes is larger than that of the lower ends. Although this utility model has integrated the microwave function and fried a pot function of air, still there is not enough: firstly, the utility model of the multifunctional microwave oven has no oven function; secondly, the hot air device of the microwave oven is arranged on the side wall at the rear side, so that the large-power motor cannot be installed due to volume limitation, and the food materials are easily scorched due to lateral air outlet; finally, for avoiding the heating tube burn, this utility model furnace chamber is inside can't spray and cover high temperature resistant coating, leads to the user to be difficult to inside the clean furnace chamber after using the fried function of air.

Therefore, there is a need to provide a multi-functional cooking assembly for a microwave oven that is reasonably designed, provides both air-frying and oven functions for the microwave oven while also providing cooking efficiency, and facilitates the user's daily cleaning.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a multifunctional cooking assembly for a microwave oven, including:

the convection assembly comprises a motor, an upper convection cover and a heating fan blade which can be driven by the motor to rotate;

the heating assembly comprises a convection net and a heating tube; and

the cooking cavity assembly comprises a U-shaped lower enclosing plate and an upper cover plate arranged on the upper side of the lower enclosing plate, and the upper cover plate is also provided with an upper cover plate through hole;

wherein the content of the first and second substances,

the convection net is accommodated in the through hole of the upper cover plate, the upper cover plate is covered above the lower cover plate, the upper convection cover is buckled on the upper side of the upper cover plate, the motor is arranged above the upper convection cover, the heating fan blade is arranged between the upper convection cover and the convection net, the heating pipe is arranged on the lower side of the convection net,

the motor is connected with the heating fan blades and drives the heating fan blades arranged between the upper convection cover and the convection net to rotate, the heating fan blades accelerate and blow air flow downwards to the heating pipe through rotation, and the air flow flows downwards after being heated by the heating pipe.

According to the utility model discloses a preferred embodiment, the convection current subassembly still includes does the motor carries out radiating lower convection current cover and heat dissipation fan blade, wherein, down the convection current cover set up in go up the downside of convection current cover, the upper cover plate set up in down the downside of convection current cover, the heat dissipation fan blade set up in go up convection current cover lower surface with down between the upper surface of convection current cover, the heating fan blade set up in down the lower surface of convection current cover with between the upper surface of convection current net, and the heating fan blade with the heat dissipation fan blade is coaxial fan blade, common by motor drive is rotatory.

According to the utility model discloses a preferred embodiment, the convection net is circular, the upper cover plate through-hole is the annular.

According to a preferred embodiment of the present invention, the convection net is provided with a mesh part, and the mesh part is composed of a plurality of hole-like structures to allow the air flow to pass therethrough.

According to the utility model discloses a preferred embodiment, the convection current net still is provided with and is used for fixing the heating tube fixing base and the heating tube fixed bolster of heating tube, and the heating tube still is equipped with the heating tube stiff end, wherein, the heating tube stiff end by convection current net below with the heating tube fixing base is connected, the heating tube fixed bolster with the heating tube is connected.

According to the utility model discloses a second aspect provides a microwave oven, microwave oven includes multi-functional culinary art subassembly still includes the casing subassembly, the casing subassembly including be the last casing of the type of falling U, set up in go up the back shroud of casing rear side and set up in go up the front shroud of casing front side, wherein, go up the casing the back shroud and front shroud interconnect constitutes jointly the shell of microwave oven, and will multi-functional culinary art subassembly holds wherein, and go up the casing with go up the convection current cover and down the convection current cover forms the space that can supply the air flow jointly.

According to the utility model discloses a preferred embodiment, the lower bounding wall the upper cover plate the back shroud and the internal surface of front shroud all covers has easy clear coating.

According to the utility model discloses a preferred embodiment, the heat dissipation fan blade is reverse air-out blade, motor drive the heat dissipation fan blade rotates in order with the air current with higher speed and upwards blow to the motor.

According to the utility model discloses a preferred embodiment, the back shroud still includes the outer wind gap of arranging with external UNICOM, the convection current subassembly still includes the passageway of airing exhaust, go up to be provided with the wind gap and to the radome rear side down be provided with down the wind gap, wherein, the inboard opening of passageway of airing exhaust with go up the wind gap and down the wind gap is connected, and the outside opening of passageway of airing exhaust with outer wind gap is connected.

According to a preferred embodiment of the present invention, the microwave oven further comprises a glass plate and a baking tray, wherein the glass plate is rotatably disposed on the bottom surface of the lower surrounding plate and can rotate around the roller shaft under the support of the rotary ring, and the baking tray is detachably disposed on the upper surface of the glass plate.

The utility model discloses at least, provide following technological effect:

1. the microwave oven has the three functions of microwave, oven and air frying by additionally arranging the heating component and the convection component in the microwave oven;

2. by the arrangement mode of arranging the convection assembly on the upper portion, the cooking efficiency is guaranteed, and food is not easy to scorch;

3. by coating the interior of the cooking cavity with an easily cleanable coating, the cooking cavity is convenient for the user to clean daily.

Additional features and advantages of the application will be set forth in the description which follows, or may be learned by practice of the application.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter, and not limit the subject matter.

Fig. 1 is an exploded view of a multi-functional cooking assembly according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a multi-functional cooking assembly according to an embodiment of the present invention from a top view;

fig. 3 is a schematic perspective view of a microwave oven according to an embodiment of the present invention.

Description of reference numerals:

1-convection assembly 11-motor 12-upper convection cover

12 a-upper vent 13-lower convection hood 13 a-lower vent

14-heating fan blade 15-heat dissipation fan blade 16-air exhaust channel

17-radiator-2-heating assembly 21-convection net

21 a-grid part 21 b-heating tube fixing seat 21 c-heating tube fixing support

22-heating tube 22 b-heating tube fixed end 3-cooking cavity component

31-lower coaming 32-upper cover plate 32 a-upper cover plate through hole

4-housing Assembly 41-Upper housing 42-Back cover

42 a-air outlet 43-front cover plate 5-glass plate

5 a-roller shaft 5 b-rotary supporting ring 5 c-baking tray supporting leg groove

6-baking tray 6 c-baking tray support leg 7-door body

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the invention, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the types of materials selected for the panels, the numerical expressions and numerical values recited in these embodiments are to be construed as merely illustrative, and not as limitative.

It should also be noted that in the following description of the embodiments, the terms "upper/upper", "lower/lower", "outer/outer", "inner/inner", "front/front", "rear/rear", "left/left" and "right/right" or similar directional descriptive words may be used. Wherein "up/above" and "down/below" are defined as relative concepts of up and down produced in a longitudinal height direction of the microwave oven with reference to the longitudinal height direction; "outside/outside" and "inside/inside" are defined as relative concepts of outside and inside generated in a direction perpendicular to a plane where the cooking chamber and the microwave oven casing are located with reference to the plane, wherein the concept of "outside/outside" corresponds to a side directed perpendicularly to the outside direction of the microwave oven with the surfaces of the cooking chamber and the microwave oven casing as the starting surfaces, and the concept of "inside/inside" corresponds to a side directed perpendicularly to the inside direction of the microwave oven with the surfaces of the cooking chamber and the microwave oven casing as the starting surfaces; the "front/front side" is defined as a direction (at this time, the front cover of the microwave oven faces the user) which is perpendicular to the longitudinal height of the microwave oven when the user normally uses the microwave oven, and derives the corresponding directional concepts of "left/left side" and "right/right side" from this view; "rear/rear side" is defined as the opposite direction to "front/front side".

The utility model provides a multi-functional culinary art subassembly for microwave oven.

In an embodiment of the present invention, see fig. 1 and 2, wherein fig. 1 shows an exploded schematic view of a multifunctional cooking assembly in an exploded view; fig. 2 shows a perspective view of the multifunctional cooking assembly.

The utility model discloses a multi-functional culinary art subassembly of microwave oven mainly comprises convection current subassembly 1, heating element 2, 3 these triplets of culinary art chamber subassemblies for microwave oven has still have the fried function of oven and air concurrently under the prerequisite of microwave cooking basic function. The convection assembly 1 is mainly composed of a motor 11, an upper convection cover 12 and a heating fan blade 14 which can be driven by the motor 11 to rotate, wherein the motor 11 is arranged on the upper surface of the upper convection cover 12, and the heating fan blade 14 is driven to rotate by a motor shaft which longitudinally penetrates through the upper convection cover 12 to generate airflow for cooking the air fryer. The heating assembly 2 is composed of a convection net 21 and a heating pipe 22, the heating pipe 22 is arranged on the lower surface of the convection net 21, and the heating pipe 22 provides a heat source for the oven function on one hand and heats the flowing air flow generated by the heating fan 14 in the air frying function on the other hand. The cooking cavity assembly 3 forms a cooking space inside the microwave oven by being connected with each other, and mainly comprises a lower enclosing plate 31 in a right U shape and an upper cover plate 32 arranged on the upper side of the lower enclosing plate 31, wherein the upper cover plate 32 is further provided with an upper cover plate through hole 32a for accommodating the upper convection cover 12.

Specifically, when the components of the multifunctional cooking assembly are assembled, the convection net 21 is received in the upper cover plate through hole 32a such that the convection net 21 is connected with the upper cover plate through hole 32a to form a planar integrated structure. The upper cover plate 32 is disposed above the lower enclosing plate 31 in a covering manner, and left and right side edges of the upper cover plate 32 are respectively bordered by top end edges of left and right side walls of the lower enclosing plate 31. The upper convection hood 12 is fastened to the upper side of the upper cover plate 32 and is preferably screwed to the upper cover plate 32. The motor 11 is installed above the upper convection cover 12, and the heating fan blade is disposed in a space formed by the upper convection cover 12 and the convection net 21. The heating pipe 22 is provided below the convection net 21.

Further, the motor 11 is connected with the heating fan 14 through a motor shaft, and the rotation of the motor shaft drives the rotation of the heating fan 14 arranged between the upper convection cover 12 and the convection net 21. Meanwhile, as the heating pipe 22 is arranged at the lower side of the convection net 21, the heating fan blade 14 blows the accelerated airflow downwards to the heating pipe 22 through the rotation of the blade, the accelerated airflow flowing through the heating pipe 22 is heated and then becomes hot airflow, and the hot airflow further flows downwards until flowing into the cooking cavity surrounded by the lower enclosing plate 31 to heat the food materials in the cavity.

Preferably, in order to adapt to the downward flowing conical air flow generated by the rotation of the heating fan blade 14, the convection net 21 is configured in a circular shape, and the upper cover plate through hole 32a is also configured in an annular shape capable of accommodating the convection net 21 in the circular shape so as to adapt to the air flow generated by the driving of the motor 11 by the heating fan blade 14. In order to enable the air flow to pass through the convection net 21 efficiently, a mesh portion 21a is provided in the convection net 21, and the mesh portion 21a is composed of a plurality of hole-like structures. Wherein, each hole structure can be a circular through hole, a square through hole or a honeycomb through hole. In addition, the connection mode of the convection net 21 and the upper cover plate through hole 32a adopts a riveting mode, so that the production cost can be further controlled on the premise of ensuring the connection strength.

Preferably, as shown in fig. 1 and 2, the convection net 21 is further provided with a heating tube fixing seat 21b and a heating tube fixing bracket 21c for fixing the heating tube 22, and correspondingly, the heating tube 22 is further provided with a heating tube fixing end 22 b. In the assembling process, the heating tube 22 is first connected with the heating tube fixing seat 21b through the heating tube fixing end 22b in an inserting manner from the lower side of the convection net 21, and then connected with the tube body of the heating tube 22 through the heating tube fixing support 21 c. In this way, while the two-point fixing of the heating tube 22 is realized, the material cost is minimized, and more profit margin is brought.

Preferably, the utility model discloses fan blade for the cooling still can additionally be add to multi-functional culinary art subassembly to the realization is to the heat dissipation of motor 11, thereby further ensures microwave oven's life. Correspondingly, a lower convection cover 13 and a heat dissipation fan blade 15 for dissipating heat of the motor 11 are additionally arranged in the convection assembly 1. In assembly, the lower convection housing 13 is disposed below the upper convection housing 12, and the lower convection housing and the upper convection housing are connected to each other by screwing, and the upper cover plate 32 is disposed below the lower convection housing 13. Therefore, the heat dissipation fan blades 15 are accommodated in the space formed by the lower surface of the upper convection cover 12 and the upper surface of the lower convection cover 13, and the heating fan blades 14 are accommodated between the lower surface of the lower convection cover 13 and the integral plane formed by the convection net 21 and the upper cover plate 32, so that a temperature difference can be formed between the heat dissipation fan blades 15 and the heating fan blades 14 under the isolation of the lower convection cover 13.

Further, the heating fan blade 14 and the heat dissipation fan blade 15 are coaxial fan blades, and are driven to rotate by the motor 11. On one hand, a motor shaft of the motor 11 is connected with a heat dissipation fan blade 15 above the upper convection cover 12 to produce low-temperature circulating airflow to cool the motor 11; on the other hand, the motor shaft of the motor 11 passes through the upper convection cover 12 and the lower convection cover 13, and is connected with the heating fan 14 below the lower convection cover 13 to drive the heating fan 14 to accelerate and blow the airflow downwards to the heating pipe 22 below the convection net 21. Therefore, the fan blade structure of the heat dissipation fan blade 15 is opposite to the fan blade structure of the heating fan blade 14, in such a way, the mode of driving by the single motor 11 can be realized, hot air required by the microwave oven for air frying and cooking can be manufactured, cold air for heat dissipation of the motor 11 can be manufactured, and the two fan blade structures are not influenced by each other because the air-producing directions are opposite, so that the production cost is reduced, the layout in the multifunctional cooking assembly is optimized, and the cooking efficiency of the multifunctional cooking assembly is not sacrificed while the occupied space of internal elements is saved.

Referring to fig. 3, fig. 3 is a schematic perspective view of a microwave oven according to an embodiment of the present invention. The microwave oven comprises the multifunctional cooking assembly, a shell assembly 4 forming an outer shell of the microwave oven, wherein the shell assembly 4 comprises an inverted U-shaped upper shell 41, a rear cover plate 42 arranged at the rear side of the upper shell 41 and a front cover plate 43 arranged at the front side of the upper shell 41. Wherein, the upper housing 41 is buckled above the multifunctional cooking assembly, so the front cover plate 43 covers the multifunctional cooking assembly on the front side, and the left side edge, the right side edge and the upper side edge of the front cover plate 43 are respectively bordered with the front edge of the left side wall, the front edge of the right side wall and the front edge of the top wall of the upper housing 41. Correspondingly, the rear cover plate 42 covers the multifunctional cooking assembly at the rear side, and the left side edge, the right side edge and the upper side edge of the rear cover plate 42 are respectively bordered by the left side wall rear edge, the right side wall rear edge and the top wall rear edge of the upper housing 41. Accordingly, the upper case 41, the rear cover 42 and the front cover 43 are connected to each other to form a housing of the microwave oven, so as to completely accommodate the multifunctional cooking assembly in the inner space of the housing, and a space for air to flow is formed between the upper case 41 and the upper convection hood 12 and the lower convection hood 13, so as to dissipate heat of the motor 11. Preferably, the left side wall of the upper casing 41 is further provided with a heat dissipation net 17, so as to further assist the heat dissipation of the internal components of the microwave oven.

Further, the inner surfaces of the rocker panel 31, the upper cover panel 32, the rear cover panel 42, and the front cover panel 43 are coated with an easy-to-clean coating. In addition, the convection net 21 is arranged in the upper cover plate 32, and the heating tube 22 is arranged under the convection net 21, so that the area of the through hole 32a of the upper cover plate is not required to be sprayed with a coating, the direct heat radiation of the heating tube 22 to the coating is further avoided from being roasted, the interior of the cooking cavity is easy to clean, and the high-temperature heat of the heating tube 22 is ensured not to damage the easy-to-clean coating.

Preferably, the lower enclosing plate 31, the upper cover plate 32, the rear cover plate 42 and the front cover plate 43 are made of a material (such as an aluminum plate) with relatively high microwave energy efficiency, and after the inner surface is sprayed, the convection net 21 (preferably made of 304 stainless steel) is riveted to the through hole 32a of the upper cover plate.

Further referring to fig. 1, a through outer air outlet 42a is further opened above the rear cover plate 42, and the convection assembly 1 may further be provided with an air exhaust channel 16, correspondingly, an upper air outlet 12a is opened at the rear side of the upper convection hood 12, and a lower air outlet 13a is also opened at the rear side of the lower convection hood 13. When the microwave oven is assembled, the inner opening of the exhaust duct 16 is connected to both the upper exhaust port 12a and the lower exhaust port 13a, and the outer opening of the exhaust duct 16 is connected to the outer exhaust port 42 a.

Specifically, by adding the exhaust passage 16 to the convection assembly, heat generated during air cooking can be easily introduced into the exhaust passage 16 through the upper exhaust opening 12a by the rotation of the heat dissipation fan blade 15 and exhausted out of the shell of the microwave oven through the outer exhaust opening 42a, which is beneficial to reducing the temperature of the motor 11.

Specifically, by adding the exhaust passage 16 to the convection assembly, the steam or oil smoke generated during cooking can be easily guided into the exhaust passage 16 through the lower exhaust port 13a by the rotation of the heating blade 14 and exhausted out of the housing of the microwave oven through the outer exhaust port 42 a.

Preferably, in order to achieve the high-speed internal circulation effect of the airflow in the cooking cavity, in practical applications, the preferred rotation speed of the motor 11 is 2700-.

As shown in fig. 1 and 3, the microwave oven further includes a glass tray 5, a grill pan 6, and a door 7 that can be opened and closed with respect to a front cover 43. The glass plate 5 is rotatably disposed on the bottom surface of the lower enclosing plate 31 and can rotate around the roller shaft 5a under the support of the rotating drag ring 5b, and the baking tray 6 is detachably disposed on the upper surface of the glass plate 5. In the preferred embodiment, grill pan 6 is provided with three grill pan legs 6c and correspondingly grill pan leg slots are also provided in the upper surface of glass plate 5 to accommodate grill pan legs 6c so that the grill pan can be placed more securely during cooking.

Therefore, the utility model discloses a culinary art subassembly for microwave oven makes microwave oven can realize the trinity culinary art function that microwave, oven and air were fried through addding heating element 2 and convection current subassembly 1 in the microwave oven.

The utility model discloses a culinary art subassembly of microwave oven has guaranteed the culinary art efficiency under the air deep-fry culinary art through the overall arrangement with motor 11, heating fan blade 14 and the 15 overhead of heat dissipation fan blades in the convection current subassembly 1 to difficult roast burnt food.

The utility model discloses a culinary art subassembly for microwave oven covers in order to easily clean the coating, convenience of customers' daily cleanness through bounding wall 31, upper cover plate 32, back shroud 42 and front shroud 43 internal surface under.

So far, some specific embodiments of the present invention have been described in detail by way of examples, but it should be understood by those skilled in the art that the above examples are only for illustration and are not intended to limit the scope of the present invention. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope or spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A multi-function cooking assembly for a microwave oven, comprising:

the convection assembly (1) comprises a motor (11), an upper convection cover (12) and a heating fan blade (14) which can be driven by the motor (11) to rotate;

the heating assembly (2) comprises a convection net (21) and a heating tube (22); and

the cooking cavity assembly (3) comprises a U-shaped lower enclosing plate (31) and an upper cover plate (32) arranged on the upper side of the lower enclosing plate (31), and the upper cover plate (32) is further provided with an upper cover plate through hole (32 a);

wherein the content of the first and second substances,

the convection net (21) is accommodated in the upper cover plate through hole (32a), the upper cover plate (32) is covered on the lower enclosing plate (31), the upper convection cover (12) is buckled on the upper side of the upper cover plate (32), the motor (11) is installed above the upper convection cover (12), the heating fan blade (14) is arranged between the upper convection cover (12) and the convection net (21), the heating pipe (22) is arranged on the lower side of the convection net (21),

the motor (11) is connected with the heating fan blade (14) and drives the heating fan blade (14) arranged between the upper convection cover (12) and the convection net (21) to rotate, the heating fan blade (14) accelerates airflow and blows the airflow downwards to the heating pipe (22) through rotation, and the airflow is heated by the heating pipe (22) and then flows downwards.

2. The multifunctional cooking assembly of claim 1, wherein the convection assembly (1) further comprises a lower convection cover (13) and a heat dissipating fan blade (15) for dissipating heat of the motor (11), wherein the lower convection cover (13) is disposed at a lower side of the upper convection cover (12), the upper cover plate (32) is disposed at a lower side of the lower convection cover (13), the heat dissipating fan blade (15) is disposed between a lower surface of the upper convection cover (12) and an upper surface of the lower convection cover (13), the heating fan blade (14) is disposed between a lower surface of the lower convection cover (13) and an upper surface of the convection net (21), and the heating fan blade (14) and the heat dissipating fan blade (15) are coaxial fan blades and are driven to rotate by the motor (11) together.

3. Multifunctional cooking assembly according to claim 2, wherein said convection net (21) is circular and said upper cover plate through hole (32a) is annular.

4. Multifunctional cooking assembly according to claim 3, characterized in that said convection net (21) is provided with a mesh portion (21a), said mesh portion (21a) being composed of a plurality of hole-like structures for the passage of the air flow.

5. The multifunctional cooking assembly according to claim 4, wherein the convection net (21) is further provided with a heating tube fixing base (21b) and a heating tube fixing bracket (21c) for fixing the heating tube (22), and the heating tube (22) is further provided with a heating tube fixing end (22b), wherein the heating tube fixing end (22b) is connected with the heating tube fixing base (21b) from below the convection net (21), and the heating tube fixing bracket (21c) is connected with the heating tube (22).

6. A microwave oven, characterized in that, the microwave oven includes the multifunctional cooking assembly according to any one of the preceding claims 2 to 5, further includes a housing assembly (4), the housing assembly (4) includes an upper housing (41) in an inverted U shape, a rear cover plate (42) disposed at the rear side of the upper housing (41), and a front cover plate (43) disposed at the front side of the upper housing (41), wherein, the upper housing (41), the rear cover plate (42), and the front cover plate (43) are connected to each other to form the outer shell of the microwave oven, and to accommodate the multifunctional cooking assembly therein, and the upper housing (41) and the upper convection hood (12) and the lower convection hood (13) together form a space for air to flow.

7. The microwave oven according to claim 6, wherein inner surfaces of the lower enclosing plate (31), the upper cover plate (32), the rear cover plate (42) and the front cover plate (43) are coated with an easy-to-clean coating.

8. The microwave oven according to claim 7, wherein the heat dissipating fan (15) is a reverse air outlet fan, and the motor (11) drives the heat dissipating fan (15) to rotate so as to accelerate and blow the air flow upward toward the motor (11).

9. The microwave oven as claimed in claim 8, wherein the rear cover plate (42) further comprises an outer discharge opening (42a) communicating with the outside, the convection assembly (1) further comprises a discharge passage (16), an upper discharge opening (12a) is provided at a rear side of the upper convection hood (12) and a lower discharge opening (13a) is provided at a rear side of the lower convection hood (13), wherein an inner opening of the discharge passage (16) is connected to the upper discharge opening (12a) and the lower discharge opening (13a), and an outer opening of the discharge passage (16) is connected to the outer discharge opening (42 a).

10. The microwave oven according to claim 9, further comprising a glass plate (5) and a baking plate (6), wherein the glass plate (5) is rotatably disposed on the bottom surface of the lower enclosing plate (31) and can rotate around the roller shaft (5a) under the support of a rotating ring (5b), and the baking plate (6) is detachably disposed on the upper surface of the glass plate (5).

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