A baking device

Abstract

The utility model relates to the technical field of food baking utensils, and discloses a baking device, comprising an outer shell and an inner cavity, wherein the inner cavity is installed in the outer shell, and the inner cavity is used to provide a baking space. The side wall and / or the rear wall of the outer shell are provided with a plurality of first heat dissipation holes, and the heat dissipation holes protrude from the outer surface of the outer shell and open downward, so that when the baking device of the utility model is used outdoors, when rainwater flows down along the outer surface of the outer shell, the rainwater flows down from the first heat dissipation holes, and rainwater can be prevented from entering the inner part of the outer shell through the first heat dissipation holes, thereby preventing safety problems such as leakage and the like, and having high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of food baking utensils, in particular to a baking device. Background Art

[0002] Baking equipment is a sealed appliance used to bake food or dry products, such as air-frying pizza ovens, electric pizza ovens, electric ovens, electric ovens, etc. At present, the air-frying pizza ovens, electric pizza ovens, electric ovens, and electric ovens on the domestic and foreign markets can only be used indoors. Therefore, the current baking equipment has the following disadvantages: (1) It is not suitable for the colorful lifestyle of modern people, and the cooking space is limited; (2) Many kitchens in modern families have small and closed spaces, which are inconvenient to operate. However, if the existing baking equipment is taken outdoors for use, once it rains, rainwater can easily enter the interior of the equipment, causing safety problems such as leakage.

[0003] The prior art (CN209421747U) discloses an oven with cooling and heat dissipation functions, including an oven shell, the side wall of which is provided with an exhaust port; a heat dissipation fan, which is installed at the exhaust port of the oven shell; a baking chamber, which is located below the heat dissipation fan; a control box, which matches the heat dissipation fan, and a first air inlet is provided at the bottom of the control box; a control panel, which is installed on the control box and located above the first air inlet; and a guide plate, which is installed in the control box and located between the control panel and the first air inlet. This patent dissipates heat through the heat dissipation holes provided on the side wall of the oven shell, but the openings of the heat dissipation holes are flush with the outer surface of the side surface. When the oven is used outdoors, rainwater will flow along the side wall of the shell and enter the oven through the heat dissipation holes, causing safety problems such as leakage. Utility Model Content

[0004] The utility model aims to provide a baking device which is suitable for outdoor use and is rainproof and highly safe.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a baking device, including an outer shell and an inner cavity, wherein the inner cavity is installed in the outer shell, the inner cavity is used to provide a baking space, and the side wall and / or the rear wall of the outer shell are provided with a plurality of first heat dissipation holes, the heat dissipation holes protrude from the outer surface of the outer shell and open downward.

[0006] As a preferred embodiment, it also includes a heating tube and a temperature sensing element, wherein the heating tube and the temperature sensing element are arranged in the inner cavity, the electrical connection end of the heating tube and the electrical connection end of the temperature sensing element are arranged on one side of the inner cavity, and the first heat dissipation hole and the electrical connection end of the heating tube and the electrical connection end of the temperature sensing element are located on the same side, and the first heat dissipation hole and the electrical connection end of the heating tube and the electrical connection end of the temperature sensing element are not arranged opposite to each other.

[0007] As a preferred solution, the electrical connection ends of the heating tube and the temperature sensing element are arranged on the rear side of the inner cavity, the first heat dissipation hole is arranged on the rear wall of the outer shell, and the lower part of the two side walls of the outer shell is provided with a second heat dissipation hole.

[0008] As a preferred solution, it further comprises a plurality of support columns, wherein the support columns are connected to the outer shell and are located below the outer shell, and a plurality of third heat dissipation holes are arranged on the bottom wall of the outer shell.

[0009] As a preferred embodiment, the outer shell includes a front panel, a side shell, a rear shell plate and an outer bottom plate, the side shell is a U-shaped structure, the front panel is connected to the front side of the side shell, the rear shell plate is connected to the rear side of the side shell, the outer bottom plate is connected to the bottom side of the side shell, the front side of the side shell is provided with a U-shaped groove, the rear side of the front panel is provided with an insert edge, the insert edge is inserted into the U-shaped groove, the rear side of the side shell is provided with a folded edge, and the folded edge is overlapped on the outer side of the rear shell plate.

[0010] As a preferred embodiment, it also includes a door assembly and a heat dissipation mechanism, the door assembly is movably connected to the outer shell, the bottom of the door assembly is provided with a first air inlet, the top of the door assembly is provided with an air outlet, the air outlet is provided with an orifice sealing ring, the interior of the door assembly is provided with a convection channel connecting the first air inlet and the air outlet, an air passage is formed between the outer shell and the inner cavity, the outer shell is provided with an air inlet corresponding to the air outlet, the outer shell is connected with an exhaust chimney, the air inlet and the exhaust chimney are connected to the air passage, the heat dissipation mechanism includes a motor, a blower and cooling fan blades, the blower is provided in the air passage, the cooling fan blades are provided in the blower, the motor is installed on the outer shell, the motor is connected to the cooling fan blades, and the motor drives the cooling fan blades to rotate.

[0011] As a preferred solution, the door assembly includes a door frame and several layers of glass, the glass is connected to the door frame, and the several layers of glass are arranged in parallel and spaced apart along the thickness direction of the door frame, and the convection channel is formed between two adjacent layers of glass.

[0012] As a preferred embodiment, the exhaust chimney includes a chimney shell and a baffle, the interior of the chimney shell is hollow, the chimney shell is connected to the outer shell, the chimney shell is provided with an air inlet hole communicated with the interior thereof, the air outlet passage is communicated with the air inlet hole, the top surface of the chimney shell is provided with a first exhaust hole communicated with the interior thereof, the bottom surface of the chimney shell is provided with a second exhaust hole, the baffle is located inside the chimney shell, and the baffle is connected to the inner wall of the chimney shell, and the baffle is located on the side of the first exhaust hole close to the air inlet hole.

[0013] As a preferred embodiment, it also includes a motor cover, the top of the outer shell is provided with a mounting hole communicating with the air outlet channel, the motor is arranged in the mounting hole, the motor cover includes a top cover, a first cover ring and a second cover ring, the first cover ring and the second cover ring are connected to the bottom surface of the top cover, and the first cover ring is sleeved outside the second cover ring, the second cover ring is connected to the mounting hole, and the side of the second cover ring is provided with a second air inlet communicating with the air outlet channel.

[0014] As a preferred solution, a heat insulator is provided on the outer surface of the inner cavity.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a first heat dissipation hole on the side wall or the rear wall of the outer shell. The first heat dissipation hole protrudes from the outer surface of the outer shell and opens downward. When the baking device of the utility model is used outdoors, when rainwater flows down along the outer surface of the outer shell, the rainwater flows out from the first heat dissipation hole, which can prevent rainwater from entering the inner part of the outer shell through the first heat dissipation hole, thereby preventing safety problems such as leakage, etc., and the baking device of the utility model has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first-view structural schematic diagram of a baking device according to an embodiment of the utility model.

[0018] Figure 2 It is a second viewing angle structural schematic diagram of the baking device of an embodiment of the utility model.

[0019] Figure 3 It is a third perspective structural schematic diagram of the baking device of an embodiment of the utility model.

[0020] Figure 4 It is a rear view of the baking device of the embodiment of the utility model.

[0021] Figure 5 It is a bottom view of the baking device of the embodiment of the utility model.

[0022] Figure 6It is a front and rear longitudinal sectional view of a baking device according to an embodiment of the present utility model.

[0023] Figure 7 It is a left and right transverse cross-sectional view of a baking device according to an embodiment of the utility model.

[0024] Figure 8 It is a structural schematic diagram of a motor cover according to an embodiment of the utility model.

[0025] In the figure, 1-inner cavity; 2-first heat dissipation hole; 3-heating tube; 4-temperature sensing element; 5-second heat dissipation hole; 6-support column; 7-third heat dissipation hole; 8-front panel; 801-insertion edge; 9-side shell; 901-folding edge; 902-U-shaped groove; 10-rear shell; 11-outer bottom plate; 12-first air inlet; 13-air outlet; 14-hole sealing ring; 15-convection channel; 16-air outlet channel; 17-air inlet; 18-exhaust chimney; 1801-chimney shell; 1802-first exhaust hole; 18 03-second exhaust hole; 1804-baffle; 19-motor; 20-blower; 21-cooling fan blade; 22-door frame; 23-glass; 24-door handle; 25-control panel; 26-knob; 27-air frying fan blade; 28-motor cover; 2801-top cover; 2802-first cover ring; 2803-second cover ring; 29-mounting hole; 30-second air inlet; 31-power box; 32-power board; 33-box cover; 34-pizza stone; 35-insulation cotton; 36-insulation board; 37-door sealing ring. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0030] Embodiment 1

[0031] like Figures 1 to 8 As shown, a baking device of a preferred embodiment of the utility model comprises an outer shell and an inner cavity 1, the inner cavity 1 is installed in the outer shell, the inner cavity 1 is used to provide a baking space, and the side wall and / or the rear wall of the outer shell are provided with a plurality of first heat dissipation holes 2, the heat dissipation holes protrude from the outer surface of the outer shell and open downward. In this embodiment, by providing the first heat dissipation holes 2 on the side wall or the rear wall of the outer shell, the first heat dissipation holes 2 protrude from the outer surface of the outer shell and open downward, when the baking device of this embodiment is used outdoors, when rainwater flows down along the outer surface of the outer shell, the rainwater flows out from the first heat dissipation holes 2, which can prevent rainwater from entering the inner part of the outer shell through the first heat dissipation holes 2, and prevent safety problems such as leakage, and has high safety.

[0032] In addition, the baking device of this embodiment further includes a heating tube 3 and a temperature sensing element 4, the heating tube 3 and the temperature sensing element 4 are arranged in the inner cavity 1, the electrical connection end of the heating tube 3 and the electrical connection end of the temperature sensing element 4 are arranged on one side of the inner cavity 1, and the first heat dissipation hole 2 and the electrical connection end of the heating tube 3 and the electrical connection end of the temperature sensing element 4 are located on the same side, and the first heat dissipation hole 2 and the electrical connection end of the heating tube 3 and the electrical connection end of the temperature sensing element 4 are not arranged opposite to each other. No heat dissipation hole is designed at the electrical connection end of the heating tube 3 and the electrical connection end of the temperature sensing element 4 to prevent leakage caused by rainwater infiltration.

[0033] Furthermore, the electrical connection ends of the heating tube 3 and the temperature sensing element 4 of this embodiment are arranged at the rear side of the inner cavity 1, the first heat dissipation hole 2 is arranged at the rear wall of the outer shell, and the lower part of the two side walls of the outer shell is provided with a second heat dissipation hole 5. No heat dissipation holes are designed in the middle and upper parts of the left and right sides of the outer shell and the top surface of the outer shell, which can effectively prevent rainwater from entering the body, and the second heat dissipation holes 5 are arranged at the lower part of the left and right sides of the outer shell for heat dissipation. The second heat dissipation holes 5 extend from the side walls of the outer shell to the bottom wall, so that the infiltrated rainwater can also be discharged.

[0034] In this embodiment, a plurality of first heat dissipation holes 2 are arranged on the rear wall of the outer shell, in the form of louver windows. The first heat dissipation holes 2 are formed by connecting louver blades with the outer shell, and the louver blades include an outer plate and two side plates, the outer plate is arc-shaped, one side of the outer plate is connected to the outer shell, and the two side plates are respectively connected to the two sides of the outer plate, and the side plates are connected to the outer shell.

[0035] In addition, the baking device of this embodiment further comprises a plurality of support columns 6, which are connected to the outer shell and are located below the outer shell, and a plurality of third heat dissipation holes 7 are provided on the bottom wall of the outer shell. The support columns 6 can keep the device at a sufficient height from a support surface such as a desktop or the ground, and the third heat dissipation holes 7 can play a role in heat dissipation, and the third heat dissipation holes 7 can also discharge the infiltrated rainwater.

[0036] Embodiment 2

[0037] The difference between this embodiment and the first embodiment is that, based on the embodiment, this embodiment further illustrates the baking equipment.

[0038] In this embodiment, the outer shell includes a front panel 8, a side shell 9, a rear shell 10 and an outer bottom plate 11. The side shell 9 is a U-shaped structure. The front panel 8 is connected to the front side of the side shell 9, the rear shell 10 is connected to the rear side of the side shell 9, and the outer bottom plate 11 is connected to the bottom side of the side shell 9. The front side of the side shell 9 is provided with a U-shaped groove 902, the rear side of the front panel 8 is provided with an insert edge 801, and the insert edge 801 is inserted into the U-shaped groove 902. The rear side of the side shell 9 is provided with a folding edge 901, and the folding edge 901 overlaps the outer side of the rear shell 10. The front panel 8 and the rear shell 10 are tightly connected to the side shell 9, and the rainwater can only flow down along the rear shell, and cannot enter the body through the seam between the side shell 9 and the rear shell 10. It should be pointed out that the connection between the side shell 9 and the rear shell 10 in this embodiment can also be connected by the front panel 8 and the side shell 9 through the "U-shaped groove 902 and the insert edge 801 plugged".

[0039] In this embodiment, the first heat dissipation holes 2 are provided on the rear shell plate 10 , the second heat dissipation holes 5 are provided on the side shell plate 9 , and the third heat dissipation holes 7 are provided on the outer bottom plate 11 .

[0040] In addition, the baking device of the present embodiment further comprises a door assembly and a heat dissipation mechanism, wherein the door assembly is movably connected to the outer shell, a first air inlet 12 is provided at the bottom of the door assembly, an air outlet 13 is provided at the top of the door assembly, an orifice sealing ring 14 is provided outside the air outlet 13, a convection channel 15 connecting the first air inlet 12 and the air outlet 13 is provided inside the door assembly, an air passage 16 is formed between the outer shell and the inner cavity 1, an air inlet 17 corresponding to the air outlet 13 is provided on the outer shell, an exhaust chimney 18 is connected to the outer shell, the air inlet 17 and the exhaust chimney 18 are connected to the air passage 16, and the heat dissipation mechanism comprises a motor 19, a wind drum 20 and a cooling fan blade 21, the wind drum 20 is arranged in the air passage 16, the cooling fan blade 21 is arranged in the wind drum 20, the motor 19 is mounted on the outer shell, the motor 19 is connected to the cooling fan blade 21, and the motor 19 drives the cooling fan blade 21 to rotate. The cooling fan blade 21 is used to draw external air into the wind drum 20 and then discharge it from the exhaust chimney 18. Cold air is sucked in from the first air inlet 12 at the bottom of the door assembly, goes upward through the convection channel 15, and then passes through the air outlet 13 at the top of the door assembly, the orifice sealing ring 14, and the air inlet 17 of the outer shell into the air passage 16 between the outer shell and the inner cavity 1. The cooling fan blade 21 driven by the motor 19 rotates to drive the suction wind drum 20 and then blows out of the machine body from the exhaust chimney 18. The air inlet 17 of this embodiment is arranged on the front panel 8. When the door assembly is closed, the air outlet 13 is opposite to the air inlet 17. Due to the arrangement of the orifice sealing ring 14, in addition to preventing rainwater from entering, it also ensures that air flows from the air outlet 13 to the air inlet 17.

[0041] Specifically, the door assembly includes a door frame 22 and a plurality of layers of glass 23, the glass 23 is connected to the door frame 22, and the plurality of layers of glass 23 are arranged in parallel and spaced apart along the thickness direction of the door frame 22, and a convection channel 15 is formed between two adjacent layers of glass 23. In this embodiment, three layers of glass 23 are used to separate the inner and outer convection channels 15. The function of using multiple layers of glass 23 is to block hot air, and the air temperature of the convection channel 15 close to the inner layer is much higher. Therefore, by setting two or more convection channels 15, the temperature outside the door assembly can be lower, and other mechanisms on the door assembly can be prevented from being heated to high temperatures, and users can be prevented from being scalded. A door sealing ring 37 is provided inside the door assembly of this embodiment, so that when the door assembly is rotated and embedded in the front side of the outer shell, the door sealing ring 37 is located between the front panel 8 and the door assembly, and plays a sealing role. The door sealing ring 37 and the orifice sealing ring 14 are both silicone sealing rings.

[0042] In addition, a door handle 24 is provided on the top of the door assembly of this embodiment, and a control panel 25 is provided on the door handle 24. A mask is attached to the surface of the door handle 24, and a convex ring is provided around the knob 26 for controlling the operation, so that rainwater cannot penetrate. It should be noted that the control panel 25 can also be designed at the bottom of the door assembly or other locations with lower temperature rise according to the appearance requirements. In this embodiment, there are no heat dissipation holes on the front and top of the door assembly, so rainwater cannot penetrate.

[0043] In this embodiment, the exhaust chimney 18 includes a chimney shell 1801 and a baffle 1804. The chimney shell 1801 is hollow inside, connected to the outer shell, provided with an air inlet hole communicating with the inside of the chimney shell 1801, the air passage 16 communicates with the air inlet hole, the top surface of the chimney shell 1801 is provided with a first exhaust hole 1802 communicating with the inside of the chimney shell 1801, the bottom surface of the chimney shell 1801 is provided with a second exhaust hole 1803, the baffle 1804 is located inside the chimney shell 1801, and the baffle 1804 is connected to the inner wall of the chimney shell 1801, and the baffle 1804 is located on the side of the first exhaust hole 1802 close to the air inlet hole. The exhaust chimney 18 of this embodiment is provided with an exhaust hole facing upward and downward, and is provided with a baffle 1804, which can effectively prevent rainwater from blowing obliquely into the machine body.

[0044] Furthermore, in this embodiment, an air-blasting fan blade 27 is also provided in the inner cavity 1, and the output shaft of the motor 19 extends into the inner cavity 1 through the air passage 16, and the cooling fan blade 21 and the air-blasting fan blade 27 are sleeved on the output shaft of the motor 19. The cooling fan blade 21 and the air-blasting fan blade 27 can be driven to rotate by the motor 19, so that the device has a cooling function and an air-blasting function. The motor 19 of this embodiment adopts a shaded-pole motor 19. When the motor 19 adopts a cross-flow fan or a DC fan, an additional shaded-pole motor 19 is required to realize the air-blasting function.

[0045] The other structures of this embodiment are the same as those of the first embodiment and will not be described again here.

[0046] Embodiment 3

[0047] The difference between this embodiment and the second embodiment is that, based on the second embodiment, this embodiment further illustrates the baking equipment.

[0048] In this embodiment, the baking device further comprises a motor 19 cover, a mounting hole 29 communicating with the air passage 16 is provided on the top of the outer shell, the motor 19 is arranged in the mounting hole 29, the motor 19 cover comprises a top cover 2801, a first cover ring 2802 and a second cover ring 2803, the first cover ring 2802 and the second cover ring 2803 are connected to the bottom surface of the top cover 2801, and the first cover ring 2802 is sleeved outside the second cover ring 2803, the second cover ring 2803 is connected to the mounting hole 29, and a second air inlet 30 communicating with the air passage 16 is provided on the side of the second cover ring 2803. The cooling fan blade 21 draws air from the first air inlet 12 at the bottom of the door assembly, the third heat dissipation hole 7 of the outer bottom plate 11 and the second air inlet 30 on the motor 19 cover to the air passage 16 for cooling. Since the second air inlet 30 is arranged on the side wall of the second cover ring 2803, the first cover ring 2802 and the top cover 2801 can prevent rainwater from entering the machine body from the second air inlet 30. Through the design of the motor cover 28, the second air inlet 30 becomes a hidden air inlet.

[0049] Furthermore, a heat insulator is provided on the outer surface of the inner cavity 1. This can save energy and improve efficiency while increasing the temperature of the inner cavity, while reducing the temperature rise on the surface of the outer shell to fully maintain heat and insulate. The heat insulator of this embodiment uses heat insulation cotton 35, and a heat insulation board 36 can be added to the outer surface of the heat insulation cotton 35 as needed.

[0050] This embodiment is provided with two groups of heating tubes 3 and temperature sensing elements 4. The two groups of heating tubes 3 are respectively arranged near the upper and lower sides of the inner cavity 1. A temperature sensing element 4 is arranged below each group of heating tubes 3. The two groups of temperature sensing elements 4 are respectively used to sense the real-time temperature of the upper and lower parts of the furnace cavity, and control the on and off of the upper and lower heating tubes 3 through temperature sensing feedback. A grill is placed between the two groups of upper and lower heating tubes 3. According to the needs of the grilled food, accessories such as pizza stones 34, frying baskets, and baking trays can also be placed on the grill. Due to the obstruction of the multi-layer glass 23, in order to clearly observe the state of the food, a lighting lamp is also designed in the inner cavity 1.

[0051] The baking device of this embodiment also includes a power box 31. The power box 3138 is designed in the lower middle part of the right side of the outer shell. The power board 32 is installed in the power box 31. The power box 31 is designed with a box cover 33. The outer shell has no heat dissipation holes on the side wall, so rainwater cannot penetrate into the power box 31.

[0052] The other structures of this embodiment are the same as those of the second embodiment and will not be described again here.

[0053] In summary, an embodiment of the utility model provides a baking device, which provides a first heat dissipation hole 2 on the side wall or the rear wall of the outer shell. The first heat dissipation hole 2 protrudes from the outer surface of the outer shell and opens downward. When the baking device of this embodiment is used outdoors, when rainwater flows down along the outer surface of the outer shell, the rainwater flows out from the first heat dissipation hole 2, which can prevent rainwater from entering the interior of the outer shell through the first heat dissipation hole 2, thereby preventing safety problems such as leakage, and having high safety.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A baking device, characterized in that: The invention comprises an outer shell and an inner cavity (1), wherein the inner cavity (1) is installed in the outer shell, and the inner cavity (1) is used to provide a baking space. The side wall and / or the rear wall of the outer shell are provided with a plurality of first heat dissipation holes (2), and the heat dissipation holes protrude from the outer surface of the outer shell and open downward.

2. The baking device according to claim 1, characterized in that: The invention also comprises a heating tube (3) and a temperature sensing element (4), wherein the heating tube (3) and the temperature sensing element (4) are arranged in the inner cavity (1), the electrical connection end of the heating tube (3) and the electrical connection end of the temperature sensing element (4) are arranged on one side of the inner cavity (1), and the first heat dissipation hole (2) and the electrical connection end of the heating tube (3) and the electrical connection end of the temperature sensing element (4) are located on the same side, and the first heat dissipation hole (2) and the electrical connection end of the heating tube (3) and the electrical connection end of the temperature sensing element (4) are not arranged opposite to each other.

3. The baking device according to claim 2, characterized in that: The electrical connection end of the heating tube (3) and the electrical connection end of the temperature sensing element (4) are arranged on the rear side of the inner cavity (1), the first heat dissipation hole (2) is arranged on the rear wall of the outer shell, and the lower part of the two side walls of the outer shell is provided with a second heat dissipation hole (5).

4. The baking device according to claim 1, characterized in that: It also comprises a plurality of support columns (6), wherein the support columns (6) are connected to the outer shell, and the support columns (6) are located below the outer shell, and the bottom wall of the outer shell is provided with a plurality of third heat dissipation holes (7).

5. The baking device according to claim 1, characterized in that: The outer shell comprises a front panel (8), a side shell (9), a rear shell plate (10) and an outer bottom plate (11); the side shell (9) is a U-shaped structure; the front panel (8) is connected to the front side of the side shell (9); the rear shell plate (10) is connected to the rear side of the side shell (9); the outer bottom plate (11) is connected to the bottom side of the side shell (9); a U-shaped groove (902) is provided on the front side of the side shell (9); an inserting edge (801) is provided on the rear side of the front panel (8); the inserting edge (801) is inserted into the U-shaped groove (902); a folding edge (901) is provided on the rear side of the side shell (9); the folding edge (901) is overlapped on the outer side of the rear shell plate (10).

6. The baking device according to claim 1, characterized in that: The invention also comprises a door assembly and a heat dissipation mechanism, wherein the door assembly is movably connected to the outer shell, the bottom of the door assembly is provided with a first air inlet (12), the top of the door assembly is provided with an air outlet (13), the air outlet (13) is provided with an orifice sealing ring (14), the interior of the door assembly is provided with a convection channel (15) connecting the first air inlet (12) and the air outlet (13), an air passage (16) is formed between the outer shell and the inner cavity (1), the outer shell is provided with an air inlet (17) corresponding to the air outlet (13), the outer shell is connected with an exhaust chimney (18), the air inlet (17) and the exhaust chimney (18) are connected to the air passage (16), The heat dissipation mechanism comprises a motor (19), a wind drum (20) and cooling fan blades (21); the wind drum (20) is arranged in the air passage (16); the cooling fan blades (21) are arranged in the wind drum (20); the motor (19) is mounted on the outer shell; the motor (19) is connected to the cooling fan blades (21); and the motor (19) drives the cooling fan blades (21) to rotate.

7. The baking device according to claim 6, characterized in that: The door assembly comprises a door frame (22) and a plurality of layers of glass (23); the glass (23) is connected to the door frame (22), and the plurality of layers of glass (23) are arranged in parallel and spaced apart along the thickness direction of the door frame (22); the convection channel (15) is formed between two adjacent layers of glass (23).

8. The baking device according to claim 6, characterized in that: The exhaust chimney (18) comprises a chimney shell (1801) and a baffle (1804); the interior of the chimney shell (1801) is hollow; the chimney shell (1801) is connected to the outer shell; the chimney shell (1801) is provided with an air inlet hole communicating with the interior thereof; the air outlet passage (16) is connected to the air inlet hole; the top surface of the chimney shell (1801) is provided with a first exhaust hole (1802) communicating with the interior thereof; the bottom surface of the chimney shell (1801) is provided with a second exhaust hole (1803); the baffle (1804) is located inside the chimney shell (1801) and connected to the inner wall of the chimney shell (1801); the baffle (1804) is located on a side of the first exhaust hole (1802) close to the air inlet hole.

9. The baking device according to claim 6, characterized in that: It also includes a motor cover (28), the top of the outer shell is provided with a mounting hole (29) which is communicated with the air outlet channel (16), the motor (19) is arranged in the mounting hole (29), the motor cover (28) includes a top cover (2801), a first cover ring (2802) and a second cover ring (2803), the first cover ring (2802) and the second cover ring (2803) are connected to the bottom surface of the top cover (2801), and the first cover ring (2802) is sleeved outside the second cover ring (2803), the second cover ring (2803) is connected to the mounting hole (29), and the side of the second cover ring (2803) is provided with a second air inlet (30) which is communicated with the air outlet channel (16).

10. The baking device according to claim 1, characterized in that: A heat insulator is provided on the outer surface of the inner cavity (1).

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