CN219479855U - Hot air device and air fryer - Google Patents
Hot air device and air fryer Download PDFInfo
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- CN219479855U CN219479855U CN202220961537.4U CN202220961537U CN219479855U CN 219479855 U CN219479855 U CN 219479855U CN 202220961537 U CN202220961537 U CN 202220961537U CN 219479855 U CN219479855 U CN 219479855U
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- inlet cavity
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Abstract
The utility model discloses a hot air device and an air fryer, wherein the hot air device comprises: a reflecting cover provided with a heating cavity which is opened downwards; the motor cover is arranged at the top of the outer side of the reflecting cover, an air inlet cavity is formed by surrounding the motor cover and the reflecting cover, the longitudinal projection of the motor cover is positioned in the longitudinal projection of the reflecting cover, and an air inlet and an air outlet runner which are communicated with the air inlet cavity are formed in the reflecting cover; the first fan blade and the heating piece are arranged in the heating cavity; the second fan blade is arranged in the air inlet cavity; and the driving motor is connected with the first fan blade and the second fan blade. Through the structure, the motor cover has smaller size, the motor cover and the air inlet cavity are more compact, and materials consumed by processing the motor cover are reduced; the space structure in the air inlet cavity can be simpler, the air flow resistance is smaller, the second fan blade can generate larger wind pressure during operation, the air inlet cavity has larger air flow, the heat dissipation air outlet efficiency is improved, and the heat dissipation effect is optimized.
Description
Technical Field
The utility model relates to the technical field of cooking appliances, in particular to a hot air device and an air fryer.
Background
The air fryer generally has a housing in which a storage chamber is provided for accommodating the pot, and a hot air device positioned at the top of the storage chamber for generating downward hot air through the hot air device to cook food materials in the pot. The existing hot air device is generally provided with a reflecting cover and a motor cover, an electric heating tube and a first fan blade are arranged on the inner side of the reflecting cover, the motor cover is arranged on the outer side of the reflecting cover, an air inlet cavity is formed between the inner surface of the motor cover and the outer surface of the reflecting cover in a surrounding mode, a second fan blade is arranged in the air inlet cavity, hot air flows downwards when the first fan blade operates, and air at the top of the hot air device is sucked into the air inlet cavity and then discharged out of the air fryer when the second fan blade operates, so that the heat dissipation effect can be achieved. The air fryer is characterized in that the air fryer is generally of a structure that a motor cover is connected with a shell, so that the motor cover has a larger size, the motor cover is complex in structure and more in processing consumption, the air inlet cavity is complex in inner space structure, the air flow resistance is larger, the air flow which is more difficult to generate during operation of the second fan blade and has larger flow velocity is smaller in air pressure in the air inlet cavity, and the heat dissipation and air outlet efficiency is lower.
Disclosure of Invention
The utility model aims to provide a hot air device which can improve heat dissipation and air outlet efficiency.
The utility model also provides an air fryer with the hot air device.
According to a first aspect of the present utility model, there is provided a hot air device comprising: a reflecting cover provided with a heating cavity which is opened downwards; the motor cover is arranged at the top of the outer side of the reflecting cover, an air inlet cavity is formed by surrounding the motor cover and the reflecting cover, the longitudinal projection of the motor cover is positioned in the longitudinal projection of the reflecting cover, and an air inlet and an air outlet runner which are communicated with the air inlet cavity are formed in the reflecting cover; the first fan blades and the heating piece are arranged in the heating cavity; the second fan blade is arranged in the air inlet cavity; and the driving motor is connected with the first fan blade and the second fan blade.
According to the hot air device, the air inlet is communicated with the top of the air inlet cavity, and the air outlet flow passage is communicated with the rear side of the air inlet cavity.
According to the hot air device, the air inlet cavity is provided with an inner side wall of the air cavity, the cross section of the inner side wall of the air cavity is circular arc, and the inner wall of one side of the air outlet flow passage is tangent with the inner side wall of the air cavity.
According to the hot air device, the width of the air outlet flow passage is gradually increased from inside to outside.
According to the hot air device, the rear side of the motor cover is provided with the air guide shell part, the inner cavities of the air guide shell part are communicated with the outlet side of the air outlet flow channel, and the inner walls of the two sides of the air guide shell part are arranged in parallel.
According to the hot air device, the first air vent communicated with the heating cavity is arranged at the rear side of the reflecting cover.
According to the hot air device, the reflecting cover comprises a cover body and a flanging part, the cover body is provided with the heating cavity, the flanging part is arranged around the cover body, the inner side of the flanging part is connected with the bottom edge of the cover body, the motor cover is arranged at the top of the outer side of the cover body, and the longitudinal projection of the air inlet cavity is positioned at the inner side of the longitudinal projection of the flanging part.
According to a second aspect of the present utility model there is provided an air fryer comprising a hot air device as described above.
According to the air fryer, the air fryer further comprises a shell device, the shell device comprises a base body which is arranged into an integrated structure, the base body is provided with a base bottom wall, a base side wall and a base frame ring which are sequentially arranged from bottom to top, a storage cavity for accommodating a pot is formed among the base bottom wall, the base side wall and the base frame ring, and the side edge of the reflecting cover is arranged on the base frame ring and is provided with a connecting part connected with the base frame ring.
According to the air fryer, the shell device further comprises a shell with an open bottom, the shell is covered on the base main body, a second ventilation opening is formed in the rear side of the shell, and a ventilation drum which is communicated front and back is arranged at the second ventilation opening.
The scheme has the beneficial effects that:
through the structure, the longitudinal projection of the motor cover is positioned in the longitudinal projection of the reflecting cover, the motor cover has smaller size, the size of the air inlet cavity is correspondingly reduced, the motor cover and the air inlet cavity are more compact, materials consumed by processing the motor cover are reduced, and the material cost is reduced; in addition, the air inlet cavity is formed by surrounding the top of the outer side of the motor cover and the top of the reflecting cover, the space structure in the air inlet cavity can be simpler, the air flow resistance is smaller, and the second fan blade can generate larger wind pressure during operation, so that more air can be discharged through the air outlet flow channel, and more air flows into the air inlet cavity through the air inlet, the air inlet cavity has larger air flow, the heat dissipation and air outlet efficiency is improved, and the heat dissipation effect is optimized.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a block diagram of an embodiment of an air fryer in accordance with the present utility model;
FIG. 2 is a cross-sectional view of the air fryer shown in FIG. 1;
FIG. 3 is an exploded view of the air fryer shown in FIG. 1;
FIG. 4 is a schematic diagram of the combination of the air duct and the air heater shown in FIG. 3;
FIG. 5 is a cross-sectional view of the air heater and duct shown in FIG. 4;
FIG. 6 is a top view of the reflector and motor case shown in FIG. 4;
fig. 7 is a cross-sectional view of the motor cover shown in fig. 4.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1-3, an embodiment of the present utility model is an air fryer that includes a hot air device, a housing device, and a pot 30. The shell device comprises a base main body 21 and a surrounding shell 22, wherein the base main body 21 is arranged into an integrated structure, specifically, the base main body 21 is provided with a base bottom wall 211, a base side wall 212 and a base frame ring 213 which are sequentially arranged from bottom to top, a storage cavity 215 for accommodating the cookware 30 is formed among the base bottom wall 211, the base side wall 212 and the base frame ring 213, and the hot air device is arranged on the base frame ring 213.
With the above structure, the base body 21 can be integrally molded by injection molding, etc., and the base bottom wall 211, the base side wall 212 and the base frame ring 213 do not need to be assembled after being separately molded, so that the number of parts of the housing device can be reduced, the assembly process of the air fryer can be simplified, and the assembly efficiency can be improved. In addition, the base side wall 212 is connected with the base bottom wall 211 and the base frame ring 213 in an integrated manner, and a sealing structure is not required to be additionally arranged between the base side wall 212 and the base bottom wall 211 and between the base side wall 212 and the base frame ring 213 so as to avoid oil smoke leakage, improve the sealing effect and further simplify the structure of the shell device.
In the present embodiment, the outer side of the base sidewall 212 is provided with the supporting rib 214, and the supporting rib 214 extends to connect the base bottom wall 211 and the base frame ring 213, so as to improve the structural strength of the base main body 21, and the base sidewall 212 can be made of a smaller thickness, thereby reducing the cost.
In this embodiment, the enclosure 22 is covered on the base body 21, the bottom of the enclosure 22 is connected with the bottom wall 211 of the base by fasteners such as screws, and the hot air device, the side wall 212 of the base and the frame ring 213 of the base are all located on the inner side of the enclosure 22, so that the overall appearance of the air fryer is attractive. In addition, the base frame ring 213 can support the enclosure 22 to avoid the deformation or shaking caused by compression. In some embodiments, the bottom of enclosure 22 may also be snapped into place with base bottom wall 211.
In this embodiment, a second air vent 221 is provided at the rear side of the enclosure 22, and an air duct 23 penetrating forward and backward is provided at the second air vent 221.
Referring to fig. 4 to 7, the hot air device according to the embodiment of the utility model includes a reflecting cover 11, a motor cover 12, a first fan blade 13, a heating element 14, a second fan blade 15 and a driving motor 16, wherein the reflecting cover 11 has a heating cavity 115 opened downwards, a connecting portion 113 is provided at a side edge of the reflecting cover 11, the motor cover 12 is disposed at an outer top of the reflecting cover 11, the motor cover 12 and the reflecting cover 11 enclose to form an air inlet cavity 121, a longitudinal projection of the motor cover 12 is located in a longitudinal projection of the reflecting cover 11, an air inlet 122 and an air outlet channel 123 are provided on the reflecting cover 11, which are communicated with the air inlet cavity 121, the first fan blade 13 and the heating element 14 are both disposed in the heating cavity 115, the second fan blade 15 is disposed in the air inlet cavity 121, and the driving motor 16 is connected with the first fan blade 13 and the second fan blade 15.
Specifically, the side edge of the reflection housing 11 is provided on the base frame ring 213, and the connection portion 113 and the base frame ring 213 are connected by a fastener such as a screw. The first fan blades 13 and the second fan blades 15 are transversely arranged, the first fan blades 13 are located above the heating piece 14, the heating piece 14 is of an electric heating tube and other structures, the driving motor 16 is arranged at the top of the motor cover 12, and the rotating shafts of the driving motor 16 are inserted into the first fan blades 13 and the second fan blades 15. The first fan blade 13 generates downward heating air flow when operating, the second fan blade 15 generates heat dissipation air flow when operating, and the heat dissipation air flow flows into the air inlet cavity 121 through the air inlet 122 and then flows out through the air outlet channel 123.
With the structure, the longitudinal projection of the motor cover 12 is positioned in the longitudinal projection of the reflecting cover 11, the motor cover 12 has smaller size, the size of the air inlet cavity 121 is correspondingly reduced, the motor cover 12 and the air inlet cavity 121 are more compact, materials consumed by processing the motor cover 12 are reduced, and the material cost is reduced; in addition, the air inlet cavity 121 is formed by surrounding the motor cover 12 and the outer top of the reflecting cover 11, the space structure in the air inlet cavity 121 can be simpler, the air flow resistance is smaller, the second fan blade 15 can generate larger wind pressure during operation, so that more air can be discharged through the air outlet flow channel 123, more air flows into the air inlet cavity 121 through the air inlet 122, the air inlet cavity 121 has larger air flow, the heat dissipation and air outlet efficiency is improved, and the heat dissipation effect is optimized.
In some embodiments, the drive motor 16 may also be coupled to the enclosure 22.
In this embodiment, the air inlet 122 is connected to the top of the air inlet cavity 121, and the air outlet channel 123 is connected to the rear side of the air inlet cavity 121, so as to suck the air above the motor cover 12 into the air inlet cavity 121, and then discharge the air backward.
In this embodiment, the air inlet cavity 121 has an air cavity inner sidewall 124 with a circular arc cross section, and one side inner wall of the air outlet flow channel 123 is tangent to the air cavity inner sidewall 124. Referring to fig. 7, the direction indicated by the arrow is the flowing direction of the heat dissipation air flow, the air flow generated by the second fan blade 15 during operation flows along the inner wall 124 of the air cavity, and then flows out of the air inlet cavity 121 along the inner wall of the air outlet channel 123, so that the air flow path is smooth, the flow resistance is small, and the air outlet efficiency is improved.
In this embodiment, the width of the air outlet flow channel 123 gradually increases from inside to outside, i.e. the inlet side of the air outlet flow channel 123 is narrower and the outlet side is wider. The air flow is diffused and depressurized in the air outlet flow channel 123, so that the pressure difference between the inside and the outside of the air inlet cavity 121 is larger, the air outlet flow can be increased, and the air outlet efficiency is improved.
In this embodiment, the rear side of the motor cover 12 is provided with the air guiding part 125, the inner cavity of the air guiding part 125 is communicated with the outlet side of the air outlet channel 123, and the inner walls of the two sides of the air guiding part 125 are arranged in parallel, so that the air flowing out through the air outlet channel 123 flows out along a straight path. The air guiding shell 125 is inserted into the inlet side of the air duct 23 to align the air guiding shell 125 with the motor cover 12, and the inner cavity of the air guiding shell 125 is communicated with the inner cavity of the air duct 23.
In this embodiment, the rear side of the reflecting cover 11 has a first air vent 114 communicating with the heating cavity 115, the first air vent 114 is located below the inner cavity of the air guiding shell 125, and the inner cavities of the first air vent 114 and the air guiding shell 125 are both communicated with the inner cavity of the air duct 23. The end of the air duct 23 may also stop against the outer side wall of the reflective cover 11, and the oil smoke flowing out through the first air port 114 may directly flow back into the air duct 23, so as to avoid the oil smoke flowing out through the first air port 114 from escaping to other positions in the enclosure 22.
In the present embodiment, an isolation net 17 is disposed between the bottom of the reflective cover 11 and the base frame ring 213 to prevent foreign matters such as flying insects from entering, and to prevent hands or tools from touching the heating element 14.
In this embodiment, the reflecting cover 11 includes a cover 111 and a flange portion 112, the cover 111 has the heating cavity 115, the flange portion 112 is disposed around the cover 111, and the inner side of the flange portion 112 is connected to the bottom edge of the cover 111, the motor cover 12 is disposed on the top of the outer side of the cover 111, and the longitudinal projection of the air inlet cavity 121 is located inside the longitudinal projection of the flange portion 112. By this structure, the size of the heating cavity 115 can be reduced, so that more concentrated downward air flow can be generated when the first fan blade 13 is operated, and the hot air can flow to the bottom of the pan 30 to fully heat the food materials. In addition, the heat radiated to the reflecting cover 11 by the heating element 14 is mainly concentrated on the cover 111, and the cover 111 can be effectively radiated by the operation of the second fan blade 15, so that the temperature rise of the reflecting cover 11 is reduced.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A hot air appliance, comprising:
a reflecting cover provided with a heating cavity which is opened downwards;
the motor cover is arranged at the top of the outer side of the reflecting cover, an air inlet cavity is formed by surrounding the motor cover and the reflecting cover, the longitudinal projection of the motor cover is positioned in the longitudinal projection of the reflecting cover, and an air inlet and an air outlet runner which are communicated with the air inlet cavity are formed in the reflecting cover;
the first fan blades and the heating piece are arranged in the heating cavity;
the second fan blade is arranged in the air inlet cavity;
and the driving motor is connected with the first fan blade and the second fan blade.
2. The hot air device according to claim 1, wherein the air inlet is communicated with the top of the air inlet cavity, and the air outlet channel is communicated with the rear side of the air inlet cavity.
3. A hot air device according to claim 2, wherein the air inlet chamber has an inner side wall of the air chamber with a circular arc-shaped cross section, and an inner side wall of the air outlet flow passage is tangent to the inner side wall of the air chamber.
4. A hot air device according to claim 2 or claim 3, wherein the width of the outlet duct increases gradually from the inside to the outside.
5. The hot air device according to claim 4, wherein the rear side of the motor cover is provided with an air guiding shell part, an inner cavity of the air guiding shell part is communicated with an outlet side of the air outlet runner, and inner walls of two sides of the air guiding shell part are arranged in parallel.
6. The hot air device as claimed in claim 5, wherein the rear side of the reflecting cover is provided with a first vent communicating with the heating chamber.
7. The hot air device according to claim 1, wherein the reflecting cover comprises a cover body and a flanging part, the cover body is provided with the heating cavity, the flanging part is arranged around the cover body, the inner side of the flanging part is connected with the bottom edge of the cover body, the motor cover is arranged at the top of the outer side of the cover body, and the longitudinal projection of the air inlet cavity is positioned at the inner side of the longitudinal projection of the flanging part.
8. An air fryer comprising a hot air device according to any one of claims 1 to 7.
9. The air fryer of claim 8, further comprising a housing means, said housing means comprising a base body configured as an integral structure, said base body having a base bottom wall, a base side wall and a base rim arranged in a bottom-to-top order, said base bottom wall, base side wall and base rim defining a cavity therebetween for receiving a pot, said side edges of said reflective cover being configured on said base rim and having a connection portion connected to said base rim.
10. The air fryer of claim 9, wherein said housing means further comprises an open bottom enclosure, said enclosure being covered by said base body, said enclosure being provided with a second vent on a rear side thereof, said second vent being provided with a through-air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220961537.4U CN219479855U (en) | 2022-04-24 | 2022-04-24 | Hot air device and air fryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220961537.4U CN219479855U (en) | 2022-04-24 | 2022-04-24 | Hot air device and air fryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219479855U true CN219479855U (en) | 2023-08-08 |
Family
ID=87482950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220961537.4U Active CN219479855U (en) | 2022-04-24 | 2022-04-24 | Hot air device and air fryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219479855U (en) |
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2022
- 2022-04-24 CN CN202220961537.4U patent/CN219479855U/en active Active
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