Air guide and heat dissipation structure of cooking electric appliance

Abstract

An air guide and heat dissipation structure of a cooking electric appliance comprises a shell and a cavity arranged in the shell, an air frying component is arranged between the top of the cavity and the shell, the air frying component comprises an air guide cover assembly, a heat dissipation assembly, a hot air assembly and a volute, and a hot air channel communicated with the interior of the cavity is formed between the air guide cover assembly and the top of the cavity. The hot air assembly is arranged on the hot air channel, a first heat dissipation channel communicated with the hot air channel is formed between the volute and the wind scooper assembly, the heat dissipation assembly is arranged on the first heat dissipation channel, heat dissipation holes communicated with the outside are formed in one side of the first heat dissipation channel, and the first heat dissipation channel is communicated with the heat dissipation holes. The volute structure is designed on the air blast component, the heat dissipation assembly is arranged on the first heat dissipation channel, the volute absorbs heat in the space between the top of the cavity and the shell into the first heat dissipation channel under the action of the heat dissipation assembly, and then the heat is led out of the heat dissipation holes through the air outlet channel. Therefore, the purpose of heat dissipation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking appliances, and particularly relates to an air guiding and heat dissipation structure of a cooking appliance. Background Art

[0002] For the air fryer microwave ovens on the market, the air fryer component is designed at the top of the cavity and has a high power. To save space, the space of the top shell of the air fryer is small. The air fryer component transfers heat to the cavity under the action of the heating tube, and part of the heat radiates from the top of the cavity to the shell. Due to the small space of the shell and the heat being concentrated at the top, the temperature rise on the surface of the shell is very high.

[0003] Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an air guiding and heat dissipation structure of a cooking appliance with simple structure, good heat dissipation effect, high heat dissipation efficiency, safety and reliability, and strong practicability, so as to overcome the deficiencies of the prior art.

[0005] An air guiding and heat dissipation structure of a cooking appliance designed according to this purpose includes a shell and a cavity arranged inside the shell. An air fryer component is arranged between the top of the cavity and the shell. It is characterized in that: the air fryer component includes an air guiding cover assembly, a heat dissipation assembly, a hot air assembly and a volute. A hot air channel communicating with the inside of the cavity is formed between the air guiding cover assembly and the top of the cavity. The hot air assembly is arranged on the hot air channel. A first heat dissipation channel communicating with the hot air channel is formed between the volute and the air guiding cover assembly. The heat dissipation assembly is arranged on the first heat dissipation channel. A heat dissipation hole communicating with the outside is arranged on one side of the first heat dissipation channel, and the first heat dissipation channel communicates with the heat dissipation hole; when the heat dissipation assembly and the hot air assembly work, part of the heat generated by the hot air assembly is discharged to the outside through the hot air channel, the first heat dissipation channel and the heat dissipation hole in sequence.

[0006] A second heat dissipation channel is arranged on the air guiding cover assembly, and the hot air channel, the second heat dissipation channel and the heat dissipation hole are communicated in sequence; the redundant heat in the hot air channel is discharged to the outside through the second heat dissipation channel and the heat dissipation hole in sequence.

[0007] The air guiding cover assembly includes a first air guiding cover and a heat insulation cover. The first air guiding cover covers the top of the cavity, and the heat insulation cover is arranged between the volute and the first air guiding cover. A hot air channel is formed between the first air guiding cover and the top of the cavity, and a first heat dissipation channel is formed between the heat insulation cover and the volute.

[0008] The air guiding cover assembly further includes an air guiding member. The air guiding member is arranged between the first air guiding cover and the heat dissipation hole. One end of the volute is provided with an air guiding plate. An air outlet channel is formed between the air guiding member and the air guiding plate. The first heat dissipation channel, the air outlet channel and the heat dissipation hole are communicated in sequence.

[0009] The second heat dissipation channel is arranged in the air guide member, a first through hole is arranged on one side of the first air guide cover, and the hot air channel is connected to the second heat dissipation channel through the first through hole.

[0010] A second through hole is provided on the heat insulation cover, and the hot air channel is connected to the first heat dissipation channel through the second through hole.

[0011] A mesh hole is arranged on the top of the cavity, and the hot air channel is connected to the inside of the cavity through the mesh hole.

[0012] The heat dissipation component includes a motor and heat dissipation fan blades. The output shaft of the motor drives and connects the heat dissipation fan blades. The volute is arranged above the motor and wraps the motor.

[0013] The hot air component comprises a hot air wheel and a heating component, wherein the heating component is wrapped around the outer periphery of the hot air wheel, and the output shaft of the motor extends into the hot air channel through the second through hole and is driven to connect to the hot air wheel.

[0014] A front plate and a rear plate are respectively arranged on the front and rear sides of the cavity, the shell is respectively connected to the front plate and the rear plate, and the heat dissipation holes are arranged on the shell, the front plate or the rear plate.

[0015] The air-guiding and heat-dissipating structure of the utility model is designed with a volute structure on the air fryer component, and a heat-dissipating component is arranged on the first heat-dissipating channel. Under the action of the heat-dissipating component of the volute, the heat-dissipating component absorbs the heat in the space between the top of the cavity and the outer shell (hot air channel) into the first heat-dissipating channel, and then guides the heat out of the heat-dissipating holes through the air outlet channel, thereby achieving the purpose of heat dissipation, thereby greatly reducing the temperature of the outer shell surface and improving the safety of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural cross-sectional view of an air fryer microwave oven in one embodiment of the utility model.

[0017] Figure 2 It is a cross-sectional view of the overall structure of an air frying microwave oven in one embodiment of the utility model.

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 4 It is a partial structural schematic diagram of an air fryer microwave oven in one embodiment of the utility model.

[0020] Figure 5 It is a schematic diagram of the exploded structure of the air fryer component in one embodiment of the utility model.

[0021] Figure 6 It is a schematic diagram of the overall structure of the volute in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See Figures 1-6 , the air guiding and heat dissipating structure of this cooking appliance includes a housing 1 and a cavity 2 arranged inside the housing 1. An air fry component a is arranged between the top of the cavity 2 and the housing 1. The air fry component a includes an air guiding hood assembly, a heat dissipating assembly, a hot air assembly, and a volute 3. A hot air channel 4 communicating with the inside of the cavity 2 is formed between the air guiding hood assembly and the top of the cavity 2. The hot air assembly is arranged on the hot air channel 4. A first heat dissipating channel 5 communicating with the hot air channel 4 is formed between the volute 3 and the air guiding hood assembly. The heat dissipating assembly is arranged on the first heat dissipating channel 5. A heat dissipating hole 6 communicating with the outside is arranged on one side of the first heat dissipating channel 5, and the first heat dissipating channel 5 communicates with the heat dissipating hole 6; when the heat dissipating assembly and the hot air assembly work, part of the heat generated by the hot air assembly is discharged to the outside in sequence through the hot air channel 4, the first heat dissipating channel 5, and the heat dissipating hole 6; specifically, under the action of the rotation of the heat dissipating blades 16 on the motor 15, the heat in the top housing 1 is sucked into the cavity (the first heat dissipating channel 5) formed by the volute 3 and the heat dissipating blades 16, and then the heat is discharged outside the heat dissipating hole 6, so as to achieve the purpose of heat dissipation, similar to the principle of an oil fume extractor.

[0024] A second heat dissipating channel 7 is arranged on the air guiding hood assembly, and the hot air channel 4, the second heat dissipating channel 7, and the heat dissipating hole 6 are communicated in sequence; the redundant heat in the hot air channel 4 is discharged to the outside in sequence through the second heat dissipating channel 7 and the heat dissipating hole 6; specifically, when the heating component 19 works, the heat generated is guided into the cavity 2 through the mesh holes 14 under the action of the hot air impeller 18 to heat the food. At the same time, part of the redundant heat in the hot air channel 4 is discharged to the outside in sequence through the first through hole 13, the second heat dissipating channel 7, and the heat dissipating hole 6; most of the heat in the hot air channel 4 enters the cavity 2, and the remaining heat is partly absorbed by the heat dissipating assembly and partly discharged through the second heat dissipating channel 7. By combining the two heat dissipation methods, the heat dissipation effect is further improved.

[0025] The air guiding hood assembly includes a first air guiding hood 8 and a heat insulating hood 9. The first air guiding hood 8 covers the top of the cavity 2, and the first air guiding hood 8 covers the mesh holes 14. The heat insulating hood 9 is arranged between the volute 3 and the first air guiding hood 8, and the heat insulating hood 9 covers above the first air guiding hood 8. The volute 3 is arranged on the top of the heat insulating hood 9 and is located between the heat insulating hood 9 and the housing 1. A hot air channel 4 is formed between the first air guiding hood 8 and the top of the cavity 2, and a first heat dissipating channel 5 is formed between the heat insulating hood 9 and the volute 3.

[0026] The air guiding hood assembly further includes an air guiding member 10. The air guiding member 10 is arranged between the first air guiding hood 8 and the heat dissipating hole 6. One end of the volute 3 is provided with an air guiding plate 11. An air outlet channel 12 is formed between the air guiding member 10 and the air guiding plate 11, and the first heat dissipating channel 5, the air outlet channel 12, and the heat dissipating hole 6 are communicated in sequence.

[0027] The second heat dissipation channel 7 is arranged inside the air guiding member 10. A first through hole 13 is arranged on one side of the first air guiding cover 8. The hot air channel 4 communicates with the second heat dissipation channel 7 through the first through hole 13. In this embodiment, the air guiding member 10 is the second air guiding cover, and other air guiding structures can also be used for the air guiding member 10 to conduct heat dissipation.

[0028] A second through hole 22 is arranged on the heat insulation cover 9. The hot air channel 4 communicates with the first heat dissipation channel 5 through the second through hole 22.

[0029] A mesh hole 14 is arranged at the top of the cavity 2. The hot air channel 4 communicates with the inside of the cavity 2 through the mesh hole 14, and the mesh hole 14 is arranged on the top plate of the cavity 2.

[0030] The heat dissipation component includes a motor 15 and a heat dissipation fan blade 16. The output shaft 17 of the motor 15 is drivingly connected to the heat dissipation fan blade 16. The volute 3 is arranged above the motor 15 and wraps the motor 15 to protect the motor 15.

[0031] The hot air component includes a hot air wind wheel 18 and a heating component 19. The heating component 19 is wrapped around the outer periphery of the hot air wind wheel 18. The heating component 19 is a heating pipe. The output shaft 17 of the motor 15 extends into the hot air channel 4 through the second through hole 22 and is drivingly connected to the hot air wind wheel 18.

[0032] When the hot air wind wheel 18 works, the heat generated by the heating component 19 is discharged into the cavity 2. Part of the heat radiates from the top of the cavity 2 and flows back to the hot air channel 4. Under the action of the motor 15 driving the heat dissipation fan blade 16 to rotate, the heat dissipation fan blade 16 sucks the heat flowing back to the hot air channel 4 into the first heat dissipation channel 5, and then discharges the heat out of the heat dissipation hole 4 through the air outlet channel 12, so as to discharge the heat to the outside, thereby achieving the purpose of heat dissipation and preventing the heat from being transferred to the outer shell 1.

[0033] A front plate 20 and a rear plate 21 are respectively arranged on the front and rear sides of the cavity 2. The outer shell 1 is respectively connected to the front plate 20 and the rear plate 21. The heat dissipation hole 6 is arranged on the outer shell 1, the front plate 20 or the rear plate 21. In this embodiment, the heat dissipation hole 6 is arranged on the rear plate 21. The heat dissipation hole 6 covers the air outlet channel 12 and the second heat dissipation channel 7, and the air guiding member 10 is arranged between the first air guiding cover 8 and the rear plate 21.

[0034] The cooking appliance in this embodiment includes, but is not limited to, an air fryer microwave oven or a product with an air fryer function.

[0035] The above is the preferred embodiment of the present utility model, which shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wind guiding and heat dissipating structure of a cooking appliance, comprising a housing (1) and a cavity (2) arranged inside the housing (1), an air fry component (a) is arranged between the top of the cavity (2) and the housing (1), and it is characterized in that: The air fry component (a) includes a wind guide cover assembly, a heat dissipation assembly, a hot air assembly, and a volute (3). A hot air channel (4) communicating with the inside of the cavity (2) is formed between the wind guide cover assembly and the top of the cavity (2). The hot air assembly is arranged on the hot air channel (4). A first heat dissipation channel (5) communicating with the hot air channel (4) is formed between the volute (3) and the wind guide cover assembly. The heat dissipation assembly is arranged on the first heat dissipation channel (5). A heat dissipation hole (6) communicating with the outside is arranged on one side of the first heat dissipation channel (5), and the first heat dissipation channel (5) communicates with the heat dissipation hole (6). When the heat dissipation assembly and the hot air assembly work, part of the heat generated by the hot air assembly is discharged to the outside in sequence through the hot air channel (4), the first heat dissipation channel (5), and the heat dissipation hole (6).

2. The air guiding and heat dissipating structure of the cooking appliance according to claim 1, wherein: A second heat dissipation channel (7) is arranged on the wind guide cover assembly. The hot air channel (4), the second heat dissipation channel (7), and the heat dissipation hole (6) are communicated in sequence. The redundant heat in the hot air channel (4) is discharged to the outside in sequence through the second heat dissipation channel (7) and the heat dissipation hole (6).

3. The air guiding and heat dissipating structure of the cooking appliance according to claim 2, characterized in that: The wind guide cover assembly includes a first wind guide cover (8) and a heat insulation cover (9). The first wind guide cover (8) covers the top of the cavity (2). The heat insulation cover (9) is arranged between the volute (3) and the first wind guide cover (8). A hot air channel (4) is formed between the first wind guide cover (8) and the top of the cavity (2), and a first heat dissipation channel (5) is formed between the heat insulation cover (9) and the volute (3).

4. The air guiding and heat dissipating structure of the cooking appliance according to claim 3, wherein: The wind guide cover assembly further includes a wind guide member (10). The wind guide member (10) is arranged between the first wind guide cover (8) and the heat dissipation hole (6). A wind guide plate (11) is arranged at one end of the volute (3). An air outlet channel (12) is formed between the wind guide member (10) and the wind guide plate (11). The first heat dissipation channel (5), the air outlet channel (12), and the heat dissipation hole (6) are communicated in sequence.

5. The air guiding and heat dissipating structure of the cooking appliance according to claim 4, wherein: The second heat dissipation channel (7) is arranged in the wind guide member (10). A first through hole (13) is arranged on one side of the first wind guide cover (8). The hot air channel (4) communicates with the second heat dissipation channel (7) through the first through hole (13).

6. The air guiding and heat dissipating structure of the cooking appliance according to claim 3, wherein: A second through hole (22) is arranged on the heat insulation cover (9). The hot air channel (4) communicates with the first heat dissipation channel (5) through the second through hole (22).

7. The air guiding and heat dissipating structure of the cooking appliance according to claim 3, wherein: A mesh hole (14) is arranged on the top of the cavity (2). The hot air channel (4) communicates with the inside of the cavity (2) through the mesh hole (14).

8. The air guiding and heat dissipating structure of the cooking appliance according to claim 6, characterized in that: The heat dissipation assembly includes a motor (15) and a heat dissipation fan blade (16). The output shaft (17) of the motor (15) is drivingly connected to the heat dissipation fan blade (16). The volute (3) is arranged above the motor (15) and wraps the motor (15).

9. The air guiding and heat dissipating structure of the cooking appliance according to claim 8, wherein: The hot air assembly includes a hot air wind wheel (18) and a heating component (19). The heating component (19) is wrapped around the outer periphery of the hot air wind wheel (18). The output shaft (17) of the motor (15) extends into the hot air channel (4) through the second through hole (22) and is drivingly connected to the hot air wind wheel (18).

10. The air guiding and heat dissipating structure of the cooking appliance according to any one of claims 1-9, characterized in that: The front plate (20) and the rear plate (21) are respectively arranged on the front and rear sides of the cavity (2). The outer shell (1) is respectively connected to the front plate (20) and the rear plate (21). The heat dissipation hole (6) is arranged on the outer shell (1), the front plate (20), or the rear plate (21).

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