CN216907671U

CN216907671U - Air duct structure of air oven

Info

Publication number: CN216907671U
Application number: CN202220179772.6U
Authority: CN
Inventors: 何定林
Original assignee: Foshan Zero Intelligent Electric Appliance Co ltd
Current assignee: Foshan Zero Intelligent Electric Appliance Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-08
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to an air duct structure of an air oven, which comprises a main machine body, wherein an electric cavity and a heating cavity are arranged on the main machine body; the air duct structure comprises an air duct assembly arranged on the electrical cavity; the air duct assembly comprises a driving motor, an air duct cover plate, a first fan blade, an air duct bracket and a second fan blade; the air duct support and the air duct cover plate are matched and assembled to form a heat dissipation air duct, the heat dissipation air duct is communicated with the electrical cavity, and the first fan blade is arranged on the heat dissipation air duct; a heating air channel is arranged between the air channel bracket and the heating cavity, the heating air channel is communicated with the heating cavity, and the second fan blade is arranged on the heating air channel; the driving motor is in transmission connection with the first fan blade and the second fan blade. The modular design of the air duct in the air oven is realized, the assembly is convenient and quick, the assembly efficiency is improved, and the performance is reliable.

Description

Air duct structure of air oven

Technical Field

The utility model relates to an air oven, in particular to an air duct structure of the air oven.

Background

In traditional air oven, need be by the required wind channel of a plurality of spare part equipment shaping, owing to relate to the installation of a plurality of spare parts, so traditional air oven's the equipment degree of difficulty is great, and packaging efficiency is lower, is unfavorable for batch production and maintenance in the future to overhaul. For example, chinese patent document CN212878981U discloses an air duct mechanism of an air oven, which specifically discloses: including wind channel plastics upper cover, the terminal surface can be dismantled through the bolt and be connected with wind channel plastics lower cover under the wind channel plastics upper cover, wind channel plastics lower cover lower extreme can be dismantled and be connected with the motor, motor output shaft runs through to inside the wind channel plastics lower cover, the inside first impeller that is provided with of wind channel plastics lower cover, first impeller can be dismantled and connect in the motor output shaft outside, the motor lower extreme can be dismantled through the fixed column and be connected with the wind channel fixed plate, terminal surface fixedly connected with first aviation baffle under the wind channel fixed plate, terminal surface can be dismantled and be connected with the upper plate under the wind channel fixed plate, upper plate up end fixedly connected with second aviation baffle, be provided with second impeller between wind channel fixed plate and the second aviation baffle, second impeller can be dismantled and connect in the motor output shaft outside, can dismantle between wind channel fixed plate and the second aviation baffle and be connected with the heating tube. Obviously, the air duct mechanism needs to be formed by combining a plurality of parts, and has the advantages of high manufacturing cost, complex structure, high assembly difficulty and low assembly efficiency; therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the air duct structure of the air oven.

The purpose of the utility model is realized by the following steps:

an air duct structure of an air oven comprises a main machine body, wherein an electric cavity and a heating cavity are arranged on the main machine body; the air duct structure comprises an air duct assembly arranged on the electrical cavity; the air duct assembly comprises a driving motor, an air duct cover plate, a first fan blade, an air duct bracket and a second fan blade; the air duct support and the air duct cover plate are matched and assembled to form a heat dissipation air duct, the heat dissipation air duct is communicated with the electrical cavity, and the first fan blade is arranged on the heat dissipation air duct; a heating air channel is arranged between the air channel bracket and the heating cavity, the heating air channel is communicated with the heating cavity, and the second fan blade is arranged on the heating air channel; the driving motor is in transmission connection with the first fan blade and the second fan blade.

The main machine body is provided with a first air opening, and the electric cavity is communicated with the outside through the first air opening; the air duct cover plate is provided with a plurality of second air ports communicated with the heat dissipation air duct; the second air opening extends out of the outer side of the main machine body, and the heat dissipation air duct is communicated with the outside through the second air opening.

The air duct assembly further comprises an air guide cover, the air guide cover is arranged on the air duct support, the air guide cover is arranged on the heating cavity and forms the heating air duct, and the heating air duct is communicated with the heating cavity.

The opening end of the air guide cover is matched with the heating cavity; the host body is provided with a plurality of heating holes, the heating holes correspond to the open end of the air guide cover, and the heating air channel is communicated with the heating cavity through the heating holes.

The air oven also comprises a door body movably connected with the main machine body; the door body is provided with a heat dissipation interlayer, and the heat dissipation interlayer is communicated with the heat dissipation air duct.

A first air matching hole communicated with the heat dissipation air duct is formed in the main machine body; the door body is provided with a third air port and a second air matching hole which are respectively communicated with the heat dissipation interlayer, and the heat dissipation interlayer is communicated with the outside through the third air port; when the door body is closed, the first air matching hole is communicated with the second air matching hole.

The driving motor is arranged on the air duct cover plate and/or the air duct support, a motor shaft of the driving motor extends into the heat dissipation air duct and the heating air duct, and part of the motor shaft extending into the heat dissipation air duct is in transmission connection with the first fan blades and part of the motor shaft extending into the heating air duct is in transmission connection with the second fan blades.

The air duct cover plate is covered on the air duct bracket; the air duct cover plate is provided with a first air duct base plate and air duct convex ribs; a second air duct base plate is arranged on the air duct bracket; the air duct convex rib is located between the first air duct base plate and the second air duct base plate, and the first air duct base plate, the air duct convex rib and the second air duct base plate jointly enclose the heat dissipation air duct.

A connecting cylinder is arranged on the first air duct substrate; the second air duct substrate is provided with a connecting hole position corresponding to the connecting cylinder, and the connecting cylinder and the connecting hole position are connected with each other in a fastening mode through a first fastening unit.

And the second air duct substrate is provided with an installation connecting part which is fixedly connected with the main machine body through a second fastening unit.

The utility model has the following beneficial effects:

the air duct structure in the air oven is mainly formed by combining the driving motor, the air duct cover plate, the first fan blade, the air duct bracket and the second fan blade, and has the advantages of small number of parts, simple and quick assembly and high assembly efficiency; the air duct structure can realize modularized arrangement, and the air duct structure can be independently assembled on the main machine body after being installed, so that the modularized air duct structure can be suitable for ovens of various models, and the development cost can be reduced. Specifically, in order to avoid that heat generated by the heating cavity is directly transferred to the electric cavity, which causes the surface temperature of the main body to be overhigh and affects the electric elements, the air duct structure is provided with a heat dissipation air duct to timely discharge the heat in the electric cavity; in order to match the air frying function of the oven, a heating air channel communicated with the heating cavity is arranged on the air channel structure, and the second fan blades rotate to enable the heating cavity to form hot air circulation; in addition, the door is provided with a heat dissipation interlayer of a heat dissipation air duct, so that heat on the door can be effectively taken away, and overhigh temperature of the door is avoided; therefore, the air duct has the advantages of simple and reasonable structure, strong universality and practicability and reliable performance.

Drawings

FIG. 1 is an exploded view of an air oven in accordance with an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of an air oven in accordance with an embodiment of the present invention.

Fig. 3 is an exploded view of an air oven in accordance with an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an air duct cover plate according to an embodiment of the present invention.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1 to 4, the air oven according to the present embodiment includes a main body 100, wherein an electrical cavity a and a heating cavity D are disposed on the main body 100, and the electrical cavity a is located above the heating cavity D; the air duct structure on the air oven comprises an air duct assembly 200 arranged in the electric cavity A; the air duct assembly 200 comprises a driving motor 21, an air duct cover plate 22, a first fan blade 23, an air duct bracket 24 and a second fan blade 26; the air duct bracket 24 and the air duct cover plate 22 are assembled in a matching manner to form a heat dissipation air duct B, the heat dissipation air duct B is communicated with the electrical cavity A, the first fan blade 23 is arranged in the heat dissipation air duct B, negative pressure is formed in the heat dissipation air duct B when the first fan blade 23 rotates to form air convection, and therefore heat in the electrical cavity A is effectively taken away; a heating air duct C is arranged between the air duct bracket 24 and the heating cavity D, the heating air duct C is communicated with the heating cavity D, the second fan blade 26 is arranged in the heating air duct C, and the second fan blade 26 blows air to the heating cavity D when rotating, so that hot air circulation is formed in the heating cavity D to execute an air frying function; the air duct bracket 24 is connected with the main machine body 100; the driving motor 21 is connected with the first fan blade 23 and the second fan blade 26 in a transmission way. The air duct structure in the air oven is mainly formed by combining a driving motor 21, an air duct cover plate 22, a first fan blade 23, an air duct bracket 24 and a second fan blade 26, and has the advantages of small number of parts, simple and rapid assembly and high assembly efficiency; and this wind channel structure can realize the modularization setting, and the wind channel structure can be assembled to the main frame body after accomplishing the installation alone, therefore the modularized wind channel structure is applicable on the oven of multiple model, can reduce development cost.

Furthermore, the left side and the right side of the main body 100 are respectively provided with a plurality of first air ports 11, and the air inlet end of the electric cavity a is communicated with the outside through the first air ports 11; a plurality of second air ports 223 communicated with the air outlet end of the heat dissipation air duct B are integrally formed at the end part of the air duct cover plate 22; an assembly through hole 12 is formed in the outer side wall of the main body 100, a second air port 223 penetrates through the assembly through hole 12 and extends out of the outer side of the main body 100, and a heat dissipation air duct B is communicated with the outside through the second air port 223; a plurality of middle air ports 242 are formed in the air duct support 24, and the air outlet end of the electrical cavity a is communicated with the air inlet end of the heat dissipation air duct B through the middle air ports 242.

Further, the air duct assembly 200 further includes an air guiding cover 25, the air guiding cover 25 is fixedly disposed at the bottom of the air duct support 24, the air guiding cover 25 is covered on the top of the heating cavity D and forms a heating air duct C therebetween, and the heating air duct C is communicated with the heating cavity D.

Further, the opening end of the air guide cover 25 is matched with the heating cavity D; a plurality of heating holes 13 are formed in the main machine body 100, the heating holes 13 correspond to the opening end of the air guide cover 25, and the heating air duct C is communicated with the heating cavity D through the heating holes 13.

Further, the air oven further comprises a door 300 movably connected with the main body 100, the door 300 of the embodiment is connected with the main body 100 in an up-down turning or left-right turning manner, and the heating cavity D can be opened or closed by turning over the door 300; a heat dissipation interlayer E is arranged on the inner side of the door body 300 and communicated with a heat dissipation air duct B; when the first fan 23 rotates, the external air enters the heat dissipation interlayer E to take away heat, thereby preventing the temperature of the door 300 from being too high.

Furthermore, a first air matching hole 14 communicated with the air inlet end of the heat dissipation air duct B is formed in the main body 100; the bottom of the door body 300 is provided with a third air port 31 communicated with the air inlet end of the heat dissipation interlayer E, the top of the door body is provided with a second air hole pair 32 communicated with the air outlet end of the heat dissipation interlayer E, and the heat dissipation interlayer E is communicated with the outside through the third air port 31; when the door 300 is closed, the first air matching hole 14 and the second air matching hole 32 are communicated with each other, and the outside air sequentially passes through the third air opening 31, the heat dissipation interlayer E, the second air matching hole 32, the first air matching hole 14, the electric cavity a, the middle air opening 242, the heat dissipation air duct B and the second air opening 223.

Further, the driving motor 21 is fixedly arranged at the top of the air duct cover plate 22, a motor shaft of the driving motor 21 sequentially extends into the heat dissipation air duct B and the heating air duct C from top to bottom, a part of the motor shaft extending into the heat dissipation air duct B is in plug-in type transmission connection with the first fan blade 23, a part of the motor shaft extending into the heating air duct C is in plug-in type transmission connection with the second fan blade 26, and the driving motor 21 simultaneously drives the first fan blade 23 and the second fan blade 26 to simultaneously rotate synchronously.

Further, the air duct cover plate 22 is arranged on the top of the air duct bracket 24 in a covering manner; the air duct cover plate 22 is an injection molding piece and is integrally formed with a first air duct base plate 221 and an air duct convex rib 222 in an injection molding mode, and the air duct convex rib 222 protrudes downwards from the bottom of the first air duct base plate 221; the air duct bracket 24 is made of hardware, and is integrally stamped with a second air duct substrate 241; the air duct ribs 222 are located between the first air duct base plate 221 and the second air duct base plate 241, and the first air duct base plate 221, the air duct ribs 222 and the second air duct base plate 241 jointly enclose a heat dissipation air duct B.

Further, a plurality of connecting columns 224 extending downward are integrally formed at the bottom of the first air duct base plate 221 by injection molding; the second air duct base plate 241 is integrally formed with connecting hole sites 244 corresponding to the connecting columns 224 one by one in a punching manner, and the connecting columns 224 and the connecting hole sites 244 are fastened and connected with each other through first fastening units; specifically, the connecting cylinder 224 is provided with a screw hole, the first fastening unit is preferably a screw, and the first fastening unit passes through the connecting hole 244 and then is screwed with the connecting cylinder 224, so as to fixedly connect the air duct bracket 24 and the air duct cover plate 22

Further, the second duct base plate 241 is provided with an installation connection portion 243, and the installation connection portion 243 is fastened to the main body 100 by a second fastening unit; specifically, the second fastening unit is preferably a screw, and the second fastening unit passes through the installation connecting portion 243 and then is screwed with a corresponding screw hole on the main body 100, so as to fixedly connect the air duct structure and the main body 100.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be protected by the following claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An air duct structure of an air oven comprises a main machine body (100), wherein an electric cavity (A) and a heating cavity (D) are arranged on the main machine body (100); the method is characterized in that: the air duct structure comprises an air duct assembly (200) arranged on the electrical cavity (A); the air duct assembly (200) comprises a driving motor (21), an air duct cover plate (22), first fan blades (23), an air duct support (24) and second fan blades (26); the air duct support (24) and the air duct cover plate (22) are matched and assembled to form a heat dissipation air duct (B), the heat dissipation air duct (B) is communicated with the electric cavity (A), and the first fan blades (23) are arranged on the heat dissipation air duct (B); a heating air duct (C) is arranged between the air duct support (24) and the heating cavity (D), the heating air duct (C) is communicated with the heating cavity (D), and the second fan blades (26) are arranged on the heating air duct (C); the driving motor (21) is in transmission connection with the first fan blade (23) and the second fan blade (26).

2. The air duct structure of an air oven according to claim 1, characterized in that: a first air opening (11) is formed in the main machine body (100), and the electric cavity (A) is communicated with the outside through the first air opening (11); a plurality of second air ports (223) communicated with the heat dissipation air duct (B) are formed in the air duct cover plate (22); the second air opening (223) extends out of the outer side of the main machine body (100), and the heat dissipation air duct (B) is communicated with the outside through the second air opening (223).

3. The air duct structure of an air oven according to claim 1, characterized in that: the air duct assembly (200) further comprises an air guide cover (25), the air guide cover (25) is arranged on the air duct support (24), the air guide cover (25) is arranged on the heating cavity (D) in a covering mode and forms the heating air duct (C) between the heating cavity (D), and the heating air duct (C) is communicated with the heating cavity (D).

4. The air duct structure of an air oven of claim 3, wherein: the opening end of the air guide cover (25) is matched with the heating cavity (D); the heating device is characterized in that a plurality of heating holes (13) are formed in the main machine body (100), the heating holes (13) correspond to the opening end of the air guide cover (25), and the heating air duct (C) is communicated with the heating cavity (D) through the heating holes (13).

5. The air duct structure of an air oven according to claim 1, characterized in that: the air oven also comprises a door body (300) movably connected with the main machine body (100); the door body (300) is provided with a heat dissipation interlayer (E), and the heat dissipation interlayer (E) is communicated with the heat dissipation air duct (B).

6. The air duct structure of an air oven according to claim 5, characterized in that: a first air matching hole (14) communicated with the heat dissipation air duct (B) is formed in the main machine body (100); a third air opening (31) and a second air matching hole (32) which are respectively communicated with the heat dissipation interlayer (E) are formed in the door body (300), and the heat dissipation interlayer (E) is communicated with the outside through the third air opening (31); when the door body (300) is closed, the first air matching hole (14) is communicated with the second air matching hole (32).

7. The air duct structure of an air oven according to claim 1, characterized in that: driving motor (21) set up in wind channel apron (22) and/or on wind channel support (24), the motor shaft of driving motor (21) stretches into heat dissipation wind channel (B) with heat up wind channel (C), the motor shaft stretches into the partial transmission in heat dissipation wind channel (B) is connected first flabellum (23), stretches into the partial transmission in heat up wind channel (C) is connected second flabellum (26).

8. The air duct structure of an air oven according to any one of claims 1 to 7, characterized in that: the air duct cover plate (22) is arranged on the air duct bracket (24) in a covering manner; the air duct cover plate (22) is provided with a first air duct base plate (221) and air duct convex ribs (222); a second air duct base plate (241) is arranged on the air duct bracket (24); the air duct convex ribs (222) are located between the first air duct base plate (221) and the second air duct base plate (241), and the first air duct base plate (221), the air duct convex ribs (222) and the second air duct base plate (241) jointly enclose the heat dissipation air duct (B).

9. The air duct structure of an air oven of claim 8, wherein: a connecting cylinder (224) is arranged on the first air duct base plate (221); the second air duct base plate (241) is provided with a connecting hole (244) corresponding to the connecting cylinder (224), and the connecting cylinder (224) and the connecting hole (244) are fixedly connected with each other through a first fastening unit.

10. The air duct structure of an air oven of claim 8, wherein: the second air duct base plate (241) is provided with an installation connecting part (243), and the installation connecting part (243) is fixedly connected with the main machine body (100) through a second fastening unit.