WO2019153512A1

WO2019153512A1 - Heating cooker

Info

Publication number: WO2019153512A1
Application number: PCT/CN2018/083780
Authority: WO
Inventors: 曾令; 欧军辉; 周小金; 刘刚; 王卫海; 彭定元; 鲍丽莉; 巴纳德皮尔斯·詹姆士; 王方璐; 卢阳佳; 李品俊
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2018-02-08
Filing date: 2018-04-19
Publication date: 2019-08-15
Also published as: CN108266764A; CN108266764B

Abstract

A heating cooker, comprising: a base (10), a lower electrical room being formed thereinside; a cavity (20) provided on the base (10), a heating cavity (34) for placing food being formed thereinside and one side of the heating cavity (34) being formed with an opening that allows entrance and exit of the food; a door (50) provided on the cavity (20); and an upper cover (70) for covering the cavity (20), an upper electrical room being enclosed between the upper cover (70) and the cavity (20). The lower electrical room and/or the upper electrical room is formed with an air guide channel with respect to the outer surface of the door (50); the lower electrical room or the upper electrical room is provided with a fan (74). Air blown from the fan (74) flows to the outer surface of the door (50) along the air guide channel, or a high-temperature airflow on the outer surface of the door (50) is guided out from the air guide channel so that the door (50) can be quickly cooled, such that there is no need to set the thickness of the door (50) too great to prevent a user from being burnt when contacting the door (50), and the visibility of the door (50) of observing the inside of the cavity (20) will not be affected.

Description

Heating cooker

The present application claims the priority of the Chinese Patent Application No. 201101130673.7, filed on Jan. 08, 2008, which is incorporated herein by reference.

Technical field

The present invention relates to the field of household appliances, and in particular to a heating cooker.

Background technique

Generally, as shown in FIG. 1, a heating cooker such as a microwave oven has a rectangular parallelepiped shape, and has a heating chamber for placing food to be heated and a door body capable of closing the cooking chamber from an opening in front of the heating chamber. The door body mainly includes three layers. : inner glass layer, metal mesh layer, outer glass layer. The inner glass layer directly faces the inside of the cooking cavity; the metal mesh layer is disposed close to the inner glass layer for preventing microwaves from radiating from the door body to the outside; the outer glass layer is disposed opposite to the metal mesh layer, and in order to prevent user contact When the glass layer is burnt, it is generally required to set the distance between the outer glass layer and the metal mesh layer to be 0.6 mm or more, so that heat from the inside of the cooking chamber cannot be directly conducted to the outer glass layer.

In addition to the conventional rectangular shaped heating cooker, a cylindrical heating cooker has appeared in the prior art. The cylindrical heating cooker is popular with users because of its unique appearance and a new experience for the user. The inventors found in the process of realizing the cylindrical heating cooker that, on the one hand, in order to improve the visibility when the inside of the cooking chamber is observed through the door body, it is required to set the door body to be thinner, that is, between the inner and outer glass. The distance is as small as possible; on the other hand, in order to prevent the user from being burnt when contacting the outer glass layer, it is necessary to set the door body sufficiently thick, that is, the distance between the inner and outer glass is sufficiently large. As in the conventional rectangular shape heating cooker, in order to prevent burns, the thickness of the door body has been difficult to set thinner, and it is difficult to further improve the visibility.

Summary of the invention

SUMMARY OF THE INVENTION The present invention is directed to a heating cooker that can further improve the visibility of a door body while ensuring that the user does not get burnt when contacting the door body.

In order to achieve the above object, the technical solution of the present invention provides a heating cooker comprising: a base having a lower electric appliance chamber formed therein; a cavity disposed on the base, wherein a heating chamber for placing food is formed inside, and the heating chamber is formed One side is formed as an opening for food to enter and exit; a door body is disposed on the cavity for closing or opening the opening; the upper cover is disposed on the cavity, and the upper cover and the cavity are enclosed The electric appliance room and the upper electric appliance room and/or the upper electric appliance room form an air guiding air passage with respect to the outer surface of the door body; a fan is arranged in the lower electric appliance room or the upper electric appliance room, and the fan passes through the air guiding air duct from the lower electric appliance room or the upper electric appliance room Air is blown to the outer surface of the door body, or the fan draws air from the outer surface of the door body to the electric appliance room or the upper electric appliance room through the air guiding duct.

In this technical solution, the heat generated in the cooking device causes the components such as the door body to be in a high temperature state, so that the user may easily cause burns when touching the door body or the main body of the cooker, in order to prevent such a situation and not affect the door body. Visually, it is necessary to design a cooling structure to rapidly cool the high-temperature components. Therefore, a fan and a guide air duct matched with the fan are arranged in the cooker to realize rapid cooling of the door body, thereby eliminating the need to set the thickness of the door body. If it is too thick, it will prevent the user from being burnt when touching the door, and will not affect the visibility when the door is inside the cavity.

In addition, the heating cooker in the above technical solution provided by the present invention may further have the following additional technical features:

In the above technical solution, preferably, the fan is disposed in the upper electrical device; the upper electrical device is provided with a disc-shaped top air deflector, the fan is disposed on the top air deflector, and the wind emitted by the fan is guided by the top air deflector Go to the wind guide.

In the above technical solution, preferably, the fan is disposed at the center of the top air deflector, and the upper surface of the top air deflector is provided with a wind deflector extending from the center to the circumferential direction.

In the above technical solution, preferably, the edge of the top air deflector is provided with a first air duct; the first air duct constitutes at least a part of the air guiding duct.

In the above technical solution, preferably, the heating cooker further comprises a cylindrical top support plate provided with a flange, the top support plate is supported on the cavity, and the top air guide plate is supported on the top support plate, the top A second air passage is disposed at a position of the flange of the support plate corresponding to the first air passage of the top air deflector; the first air passage and the second air passage constitute at least a part of the air guiding air passage.

In the above technical solution, preferably, the door body comprises: an outer perspective layer formed in a semi-cylindrical shape; an inner perspective layer formed in a semi-cylindrical shape adapted to the outer perspective layer; disposed in the outer perspective layer and the inner perspective layer A metal mesh layer which is also formed into a semi-cylindrical shape, and a plurality of through holes are formed on the surface thereof; the outer perspective layer, the inner perspective layer and the metal mesh layer form a facade; the upper side formed into a ring shape is movable a rail for fixing the facade from the upper side; an upper fixed rail formed in an annular shape adapted to the upper movable rail for supporting the upper movable rail from the upper side and/or the outer side, and the upper side The movable rail can move relative to the upper fixed rail; the upper fixed rail is provided with a third air duct; the upper fixed rail is sleeved on the outer side of the top support plate, and the third air passage and the top support plate on the upper fixed rail The second air duct at the flange is at least partially facing; the first air duct, the second air duct, and the third air duct constitute at least a portion of the air guiding duct.

In the above technical solution, preferably, the upper movable rail is provided with a fourth air passage, and the first air passage, the second air passage, the third air passage, and the fourth air passage constitute at least a part of the air guiding duct.

In the above technical solution, preferably, the plurality of second convex portions are spaced apart from each other on the upper movable rail, and the gap between the adjacent two second convex portions forms a fourth air passage.

In any one of the above aspects, preferably, the method further includes at least one set of positioning components, each set of positioning components includes a positioning post and a positioning hole, wherein one of the positioning post and the positioning hole is disposed on the top support plate, and the other It is located on the top air deflector.

In any one of the above aspects, preferably, the method further includes at least one set of connecting components, each set of connecting components including a matching guiding hole and a connecting hole, one of the guiding hole and the connecting hole being disposed on the top supporting plate, and the other It is located on the top air deflector.

Additional aspects and advantages of the invention will be apparent from the description of the invention.

DRAWINGS

Figure 1 is a structural view showing a conventional heating cooker;

Figure 2 shows a closed state view of a heating cooker in accordance with an embodiment of the present invention;

Figure 3 is a view showing an open state of a heating cooker according to an embodiment of the present invention;

Figure 4 shows an exploded structural view of a heating cooker in accordance with an embodiment of the present invention;

Figure 5 shows a structural view of a cavity in accordance with an embodiment of the present invention;

Figure 6 shows an exploded structural view of a cavity in accordance with an embodiment of the present invention;

Figure 7 is a structural view showing a structure of a door body and a rail according to an embodiment of the present invention;

Figure 8 shows an exploded structural view of a door body and a rail structure in accordance with an embodiment of the present invention;

Figure 9 is a structural view showing an upper movable rail and an upper fixed rail according to an embodiment of the present invention;

Figure 10 shows an exploded structural view of an upper electrical compartment in accordance with an embodiment of the present invention;

Figure 11 shows a structural view of a top air deflector in accordance with an embodiment of the present invention;

Figure 12 shows a partial structural view of a top support plate in accordance with an embodiment of the present invention;

The correspondence between the reference numerals and the part names in FIGS. 2 to 12 is:

10 base, 20 cavity, 21 bottom wall, 22 top wall, 23 rear wall, 24 stirring chamber, 25 stirring chamber cover, 26 left turbulent teeth, 27 right turbulent teeth, 28 upper turbulent teeth, 29 lower side choke tooth, 30 reinforcement, 32 rear support plate, 33 rear side cover, 34 heating chamber, 50 door body, 50a facade, 51 outer perspective layer, 52 inner perspective layer, 54 lower movable rail, 57 Upper movable rail, 57a fourth air duct, 572 second raised portion, 58 upper fixed rail, 58a third air duct, 59 door body drive motor, 60 door body drive gear, 70 upper cover, 71 top decoration Sheet, 72 top support plate, 72a second air duct, 722 positioning post, 724 guide hole, 73 top air deflector, 73a first air duct, 73b air guide vane, 732 positioning hole, 734 connecting hole, 74 fan, 75 Speaker, 76 voice function module, 77 projector, 78 projection power circuit, 80 heating tube.

Detailed ways

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the invention, but the invention may be practiced in other embodiments than described herein. Limitations of the embodiments.

2 to 12, Fig. 2 is a schematic view of a heating cooker according to an embodiment of the present invention. Fig. 3 is a perspective view of the door body 50 in an open state. As shown in FIG. 2 and FIG. 3, the heating cooker mainly includes a base 10, and a lower electric appliance chamber (not shown) for mounting electrical components such as a power supply board, a magnetron, and a frequency converter can be formed inside; a cavity 20, It is disposed on the base 10, and is internally formed with a heating chamber 34 for placing food. One side of the heating chamber 34 is formed as an opening for food to enter and exit; the door body 50 is disposed on the cavity 20 for closing or opening the heating chamber 34. The upper cover 70 is disposed on the cavity 20 and can form an upper electrical room (not shown) for mounting electrical components such as a fan and a voice control module.

Specifically, as shown in FIG. 4 and FIG. 7 to FIG. 12, the lower electric appliance room and/or the upper electric appliance room form an air guiding air passage with respect to the outer surface of the door body 50; the lower electric appliance room or the upper electric appliance room is provided with a fan 74. The fan 74 blows air from the lower appliance compartment or the upper appliance compartment to the outer surface of the door body 50 through the air guiding duct, or the fan 74 draws air from the outer surface of the door body 50 to the electric appliance compartment or the upper appliance compartment through the air guiding duct.

In this embodiment, the wind blown by the fan 74 flows along the air guiding duct to the outer surface of the door body 50; or the high temperature airflow of the outer surface of the door body 50 is taken out from the air guiding duct so that the door body 50 can be quickly cooled. It is not necessary to set the thickness of the door body too thick to prevent the user from being burnt when contacting the door body 50, and does not affect the visibility of the door body 50 when viewing the inside of the cavity 20.

In the above embodiment, preferably, as shown in FIG. 4 and FIG. 10, the fan 74 is disposed in the upper electric appliance chamber; the upper electric appliance chamber is provided with a disc-shaped top air deflector 73, and the fan 74 is disposed on the top air deflector At 73, the wind from the fan 74 is directed by the top deflector 73 to the air duct.

In this embodiment, by the guiding action of the top air deflector 73, the wind blown by the fan 74 flows from the center of the top wind deflector 73 to the edge, or flows from the edge of the top wind deflector 73 toward the center; Under the driving action of 74, the flow velocity of the airflow is increased, so that the electric device and the door body 50 can be rapidly cooled to improve the cooling efficiency.

Further, as shown in FIGS. 4, 10, and 11, the fan 74 is disposed at the center of the top air deflector 73, and the upper surface of the top wind deflector 73 is provided with a wind guide 73b extending from the center in the circumferential direction.

In this embodiment, the gas flow path between the center and the edge of the top wind deflector 73 is formed by the wind deflector 73b, and the guiding effect of the top wind deflector 73 is achieved.

In some embodiments of the present invention, as shown in FIG. 11, the edge of the top air deflector 73 is provided with a first air passage 73a; the first air passage 73a constitutes at least a portion of the air guiding duct.

In this embodiment, under the driving action of the fan 74, the high-temperature airflow on the surface of the door body 50 is discharged through the first air passage 73a at the edge of the top air deflector 73; or the wind blown from the fan 74 is from the top air deflector 73. The first air passage 73a at the edge is blown toward the door body 50 so that the door body can be cooled quickly, improving the heat dissipation efficiency of the heating cooker.

In still other embodiments of the present invention, as shown in FIGS. 4, 10, and 12, the heating cooker further includes a cylindrical top support plate 72 provided with a flange, and the top support plate 72 is supported by the cavity 20. Above, the top air deflector 73 is supported on the top support plate 72, and the flange of the top support plate 72 is disposed at a position corresponding to the first air passage 73a of the top air deflector 73 with a second air passage 72a; The air passage 73a and the second air passage 72a constitute at least a part of the air guiding duct.

In this embodiment, an air guiding duct for airflow is formed by the cooperating first air passage 73a and the second air passage 72a, and the wind blown by the fan 74 along the first air passage 73a and the second air passage 72a is blown to the oven door so that the door body 50 can be quickly cooled. It is not necessary to set the thickness of the door body too thick to prevent the user from being burnt when contacting the door body 50, and does not affect the door body 50 when viewing the inside of the cavity 20. Visibility.

FIG. 7 is an assembled view of the door body 50 and its associated structure according to an embodiment of the present invention. FIG. 8 is an exploded perspective view of the door body 50 and its associated structure according to an embodiment of the present invention. As shown in FIG. 7 and FIG. 8, the door body 50 mainly includes: an outer perspective layer 51 formed into a substantially semi-cylindrical shape; an inner perspective layer 52 which is also formed into a substantially semi-cylindrical shape, which is adapted to the outer perspective layer 51; A metal mesh layer disposed between the outer see-through layer 51 and the inner see-through layer 52, which is also formed into a substantially semi-cylindrical shape, has a plurality of through holes formed on the surface thereof to prevent microwaves from passing through the outer cavity through the heating cavity 34 under the microwave heating function. 51 and the inner see-through layer 52 are transmitted, and the outer see-through layer 51 and the inner see-through layer 52 constitute a facade 50a; an upper movable rail 57 formed in a substantially annular shape for fixing the above-mentioned facade from the upper side 50a; an upper fixed rail 58 formed in an annular shape adapted to the upper movable rail 57 for supporting the upper movable rail 57 from the upper side and/or the outer side, and the upper movable rail 57 is opposite The upper fixed rail 58 slides or rolls by a plurality of rollers (not shown) provided therebetween.

It should be noted that, in the figure, since the metal mesh layer is closely adhered to the outer see-through layer 51 and the inner see-through layer 52, the structure thereof is not specifically shown in the drawing.

Specifically, as shown in FIG. 9, the upper fixed rail 58 is provided with a third air passage 58a; the upper fixed rail 58 is sleeved on the outer side of the top support plate 72, and the third air passage 58a on the upper fixed rail 58 is fixed. The second air passage 72a at the flange of the top support plate 72 is at least partially opposed; the first air passage 73a, the second air passage 72a, and the third air passage 58a constitute at least a portion of the air guide duct.

In this embodiment, the wind blown by the fan 74 is sequentially blown toward the door body 50 along the first air passage 73a, the second air passage 72a, and the third air passage 58a, thereby achieving rapid cooling of the door body 50. In addition, the third wind is used. The road 58a is disposed on the upper fixed rail 58, and the upper fixed rail 58 and the upper movable rail 57 are relatively rotated to generate heat while the cold air or the cold air cools the rail, thereby solving the heat dissipation problem of the rail structure.

Further, the upper movable rail 57 is provided with a fourth air passage 57a, and the first air passage 73a, the second air passage 72a, the third air passage 58a, and the fourth air passage 57a constitute at least a part of the air guiding duct.

In this embodiment, a portion of the wind blown by the fan 74 is guided to the door body 50 through the fourth air passage 57a, and the other portion is guided to the cavity body, thereby achieving rapid cooling of the door body 50 and realizing the cavity 20 quickly. cool down.

In any of the above embodiments, preferably, as shown in FIG. 9, the upper movable rail 57 is spaced apart from the plurality of second convex portions 572, and the gap between the adjacent two second convex portions 572 is formed. The fourth air passage 57a.

In the embodiment, by arranging a plurality of second protrusions 572 on the upper movable rail 57, on the one hand, the contact area between the two rails is reduced, that is, the sliding friction resistance of the contact surface is reduced, so that two The relative rotation of the guide rails is smoother, and at the same time, the direct contact between the two guide rails is reduced to cause wear; on the other hand, the fourth air passage 57a for air circulation is formed by the gap between the adjacent two second raised portions 572, and the structure is further improved. Simple, reduce production costs.

It should be noted that the second convex portion 572 may be a bump or a ridge provided on the surface of the upper movable rail 57, or may be any combination of the bump and the ridge.

FIG. 5 is an assembled view of a cavity 20 and its associated structure according to an embodiment of the present invention. FIG. 6 is an exploded perspective view of a cavity 20 and its associated structure according to an embodiment of the present invention. As shown in FIG. 5 and FIG. 6 , the cavity 20 mainly includes a bottom wall 21 surrounding the heating chamber 34 , a top wall 22 and a rear wall 23 , and is disposed to overlap with the rear wall 23 and is provided to support the top wall 22 . The rear support plate 32 of the component and the rear side cover 33 which are disposed outside the rear support plate 32. Corresponding to the above-mentioned base 10 may be a circular, circular or rounded rectangle shape, the cavity 20 may be cylindrical, cylindrical or a cylinder having a rounded rectangular cross section, etc., in this embodiment The cavity 20 is cylindrical as an example for explanation.

In the present embodiment, the bottom wall 21 has a circular plate shape, and a central portion thereof is recessed toward the base 10 side to form a stirring chamber 24. The agitation chamber 24 is separated from the heating chamber 34 by a stirring chamber cover 25. The agitating chamber cover 25 is formed of a material that is transparent to microwaves. The rear wall 23 has a substantially semicircular arc shape and is disposed along the outer circumference of the bottom wall 21, and the top wall 22 is also a circular plate shape, and the outer periphery thereof is connected to the rear wall 23, whereby the bottom wall 21, the top wall 22 and the rear wall 23 is formed as a heating chamber 34 that is open on the front side (the side that the user operates while heating the cooker) and that is closed on the rear side, and the opening can be closed or opened by the door body 50.

For the heating cooker having the microwave heating function, even if the door body 50 closes the opening of the heating chamber 34, the microwave may leak out from the gap between the door body 50 and the cavity 20, and for this, in this embodiment, The left side choke teeth 26 and the right side choke teeth 27 are vertically disposed at the left and right edges of the rear wall 23, and the substantially semi-annular upper side choke teeth 28 are disposed above the outer side of the opening side of the top wall 22, at the bottom A substantially semi-annular lower side choke tooth 29 is provided below the outer side of the opening side of the wall 21.

The rear support plate 32 has a substantially semicircular arc shape and is disposed on the rear side, that is, on the opposite side of the opening side. With respect to the rear side, the front side wall portion 21 and the lower side turbulence tooth 29 are easily deformed by being pressed by a heavy object (such as food to be heated, etc.) due to the absence of support of the rear support plate 32 on the front side, and the like. For this reason, in the present embodiment, the reinforcing member 30 is added under the front wall portion 21 and the lower side choke teeth 29 on the front side to increase the strength of the portion.

In addition, as shown in FIG. 8, a door body driving motor 59 may be disposed on the base 10, and a door body driving gear 60 is disposed at an upper end thereof, and the door body driving gear 60 and the lower movable rail 54 may be annular. The teeth formed on the inner side are engaged, so that the door body 50 can be automatically rotated by the door drive motor 59.

4 is a schematic view showing the position of the upper cover 70 and the heat pipe 80 with respect to other components. FIG. 10 is an exploded perspective view showing the upper cover 70 and a part of the internal structure according to the embodiment of the present invention. As shown in FIGS. 4 and 10, the upper cover 70 has a substantially disk shape and is formed to heat the top of the cooker. The upper cover 70 is engageable with the semi-annular top decorative sheet 71 and is fastened to the cavity 20. Inside the upper electric appliance formed by the upper cover 70 and the cavity 20, a cylindrical top support plate 72 having a flange is provided, which is fixedly coupled to the above-described upper fixed rail 58. Above the flange face of the top support plate 72, a disk-shaped top wind deflector 73 may be provided. The top air deflector 73 is used to divide the upper electrical compartment into a lower high temperature electrical compartment and an upper low temperature electrical compartment. The high temperature electrical room is used for the heat pipe 80 shown in FIG. 4 and its associated components to be installed in a high temperature region. The low temperature electrical room is used for mounting the top fan 74, the speaker 75, the voice function module 76, the projector 77, the projection power supply circuit 78, etc., and is a low temperature area. The top fan 74 is used to cool the low temperature electrical room or the like, and can also blow the heat pipe 80 so that the heat generated by the heat pipe 80 enters the heating cavity 34 better.

In any of the above embodiments, preferably, as shown in FIG. 11 and FIG. 12, at least one set of positioning components is further included, each set of positioning components includes a positioning post 722 and a positioning hole 732, a positioning post 722 and a positioning hole. One of the 732 is disposed on the top support plate 72 and the other is disposed on the top air guide plate 73.

In this embodiment, when the top support plate 72 and the top wind deflector 73 of the cooker are connected, the top wind deflector 73 is first realized on the top support plate 72 by the positioning post 722 and the positioning hole 732 in the positioning assembly. The determination of the mounting position enables precise positioning of the mounting position by the positioning of the positioning post 722 and the positioning hole 732, facilitating rapid installation of the top air deflector 73.

In any of the above embodiments, preferably, as shown in FIGS. 11 and 12, at least one set of connecting components, each set of connecting components including a matching guiding hole 724 and a connecting hole 734, a guiding hole 724 and a connecting hole One of the 734 is disposed on the top support plate 72, and the other is disposed on the top air guide plate 73.

In this embodiment, the fastening connection to the top support plate 72 and the top air deflector 73 is achieved by the guide holes 724 and the connection holes 734 in the connection assembly; when the positioning post 722 is engaged with the positioning hole 732 and the guide hole 724 is connected When the holes 734 are connected, the top air deflector 73 is accurately mounted on the top support plate 72, achieving a fixed connection of the top support plate 72 and the top wind deflector 73.

In the present invention, the terms "first", "second", and "third" are used for the purpose of description only, and are not to be construed as indicating or implying relative importance; the term "plurality" means two or two. Above, unless otherwise explicitly defined. The terms "installation", "connected", "connected", "fixed" and the like should be understood broadly. For example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "connected" may They are directly connected or indirectly connected through an intermediary. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the description of the present invention, it is to be understood that the orientation or positional relationship of the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation shown in the drawings. Or, the positional relationship is merely for the convenience of the description of the present invention and the simplification of the description, and is not intended to indicate or imply that the device or unit referred to has a specific orientation, is constructed and operated in a specific orientation, and thus is not to be construed as limiting the invention.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A heating cooker comprising:

a base (10) having a lower electrical chamber formed therein;

a cavity (20) disposed on the base (10), internally formed with a heating chamber (34) for placing food, one side of the heating chamber (34) being formed as an opening for food to enter and exit;

a door body (50) disposed on the cavity (20) for closing or opening the opening;

An upper cover (70) is disposed on the cavity (20), and the upper cover (70) and the cavity (20) enclose an upper electrical room;

The lower electric appliance room and/or the upper electric appliance room form an air guiding air passage with respect to an outer surface of the door body (50);

a fan (74) is disposed in the lower electric appliance room or the upper electric appliance room, and the fan (74) passes through the air guiding duct from the lower electric appliance room or the upper electric appliance room to the door body ( The outer surface of 50) is blown, or the fan (74) draws air from the outer surface of the door body (50) to the lower electric appliance room or the upper electric appliance room through the air guiding duct.
The heating cooker according to claim 1, wherein the fan (74) is disposed in the upper electric appliance compartment;

A disc-shaped top air deflector (73) is disposed in the upper electrical room, the fan (74) is disposed on the top air deflector (73), and the wind blown by the fan (74) The top air deflector (73) is guided to the air guiding duct.
The heating cooker according to claim 2, wherein

The fan (74) is disposed at the center of the top air deflector (73), and the upper surface of the top air deflector (73) is provided with a wind guide (73b) extending from the center in the circumferential direction.
The heating cooker according to claim 2, wherein

The edge of the top air deflector (73) is provided with a first air passage (73a);

The first air passage (73a) constitutes at least a portion of the air guiding duct.
The heating cooker according to claim 4, wherein

The heating cooker further includes a cylindrical top support plate (72) provided with a flange, the top support plate (72) being supported above the cavity (20), the top air deflector ( 73) supported on the top support plate (72), the flange of the top support plate (72) corresponding to the first air passage (73a) of the top air deflector (73) Provided with a second air passage (72a);

The first air passage (73a) and the second air passage (72a) constitute at least a portion of the air guiding duct.
The heating cooker according to claim 5, wherein the door body (50) comprises:

Forming a semi-cylindrical outer perspective layer (51);

An inner perspective layer (52) formed in a semi-cylindrical shape adapted to the outer see-through layer (51);

a metal mesh layer formed between the outer see-through layer (51) and the inner see-through layer (52) and formed into a semi-cylindrical shape, and a plurality of through holes are formed on the surface thereof;

The outer see-through layer (51), the inner see-through layer (52) and the metal mesh layer constitute a facade (50a);

Forming an annular upper movable rail (57) for fixing the facade (50a) from the upper side;

An upper fixed rail (58) formed in an annular shape adapted to the upper movable rail (57) for supporting the upper movable rail (57) from the upper side and/or the outer side, and The upper movable rail (57) is movable relative to the upper fixed rail (58);

The upper fixed rail (58) is provided with a third air passage (58a);

The upper fixed rail (58) is sleeved on the outer side of the top support plate (72), and the third air passage (58a) and the top support plate on the upper fixed rail (58) The second air passage (72a) at the flange of 72) is at least partially facing;

The first air passage (73a), the second air passage (72a), and the third air passage (58a) constitute at least a portion of the air guiding duct.
The heating cooker according to claim 6, wherein the upper movable rail (57) is provided with a fourth air passage (57a), the first air passage (73a), the second The air duct (72a), the third air duct (58a), and the fourth air duct (57a) constitute at least a part of the air guiding duct.
The heating cooker according to claim 7, wherein a plurality of second bosses (572) are spaced apart from the upper movable rail (57), and two of the second bosses are adjacent to each other. A gap between (572) forms the fourth air passage (57a).
The heating cooker according to any one of claims 5 to 8, further comprising at least one set of positioning assemblies, each set of said positioning assemblies comprising cooperating positioning posts (722) and positioning holes (732) One of the positioning post (722) and the positioning hole (732) is disposed on the top support plate (72), and the other is disposed on the top air guide plate (73).
The heating cooker according to any one of claims 5 to 8, further comprising at least one set of connection assemblies, each set of said connection assemblies including mutually cooperating guide holes (724) and connection holes (734) One of the guiding hole (724) and the connecting hole (734) is disposed on the top supporting plate (72), and the other is disposed on the top air guiding plate (73).