Novel air fryer with good heat dissipation effect

Abstract

The utility model relates to a novel air fryer with a good heat dissipation effect, which comprises a machine body, a cooking cavity arranged in the machine body and a hot air circulation system communicated with the cooking cavity, a heat dissipation air duct communicated with the atmosphere is arranged outside the cooking cavity and surrounds at least part of the cooking cavity, a heat dissipation fan is arranged in the heat dissipation air duct, and the hot air circulation system is communicated with the hot air circulation system. The cooling fan comprises a main body and a plurality of fan blades which are arranged on the main body at intervals and extend outwards, and the included angle between each fan blade and the main body is an acute angle. The included angle between the fan blades and the main body is set to be the acute angle, so that the air outlet direction of the cooling fan can be changed, the air outlet direction of the cooling fan can be deviated to the tangential direction of the rotating direction of the cooling fan, air can be better and faster discharged, vortex is reduced, and the service life of the cooling fan is prolonged. And therefore, the heat dissipation efficiency and the heat dissipation effect of the heat dissipation fan are improved, and the user experience is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliances, and in particular to a novel air fryer with good heat dissipation. Background Technology

[0002] In most existing air fryers, the fan blades of the cooling fan have a right-angle structure. This right-angle structure causes the airflow direction to be biased towards the upper side of the cooling fan when it rotates. As a result, a large vortex is easily formed on the outside of the cooling fan. This vortex not only easily collides with the inner wall of the cooling duct of the appliance, generating a lot of noise, but also easily forms turbulence, making the airflow of the cooling fan uneven. This leads to poor cooling effect of the cooling fan and a poor user experience. Utility Model Content

[0003] This application provides a novel air fryer with good heat dissipation to solve the technical problems of poor heat dissipation and unsatisfactory user experience in existing air fryers.

[0004] To address the aforementioned technical problems, this utility model provides a novel air fryer with excellent heat dissipation, comprising a body, a cooking cavity within the body, and a hot air circulation system communicating with the cooking cavity. At least a portion of the cooking cavity is surrounded by a heat dissipation duct communicating with the atmosphere. A cooling fan is installed within the heat dissipation duct. The cooling fan includes a main body and multiple fan blades spaced apart on the main body and extending outwards. The angle between the fan blades and the main body is an acute angle. By setting the angle between the fan blades and the main body to an acute angle, the airflow direction of the cooling fan can be altered, allowing the airflow direction to deviate towards the tangential direction of the cooling fan's rotation direction. This results in better and faster airflow, reducing turbulence generation and thus improving the cooling efficiency and effect of the cooling fan, effectively enhancing the user experience.

[0005] In one optional embodiment, the fan blades and the main body are adapted to be integrally formed. By integrally forming the fan blades and the main body, not only can the structure of the cooling fan be simplified, reducing production and user costs, but the connection strength between the fan blades and the main body can also be guaranteed, thereby ensuring smooth airflow and effectively improving the performance stability of the cooling fan.

[0006] In one optional embodiment, the main body includes a main body portion and extension portions spaced apart on the outer side of the main body portion. The fan blades are disposed on the extension portions, and suction notches are formed between the ends of the fan blades near the main body portion. By providing the suction notches at the ends of the fan blades near the main body portion, more external cold air can be drawn in from the center by the cooling fan through the suction notches and thrown out from the outside, thereby forming a cooling airflow. This not only effectively improves the cooling efficiency of the cooling fan but also enhances the overall cooling effect.

[0007] In one optional embodiment, the distance h between the top plane of the fan blade and the bottom plane of the fan blade satisfies 6cm ≤ h ≤ 18cm. By reasonably setting the height of the cooling fan, not only can production costs and user operating costs be reduced, but the overall volume of the cooling fan can also be reduced while ensuring heat dissipation efficiency and effect, thereby reducing the space occupied by the air fryer and effectively improving the user experience.

[0008] In one optional embodiment, the angle between the fan blade and the main body is α, satisfying 30°≤α≤60°. When the angle between the fan blade and the main body is between 30° and 60°, the air outlet direction of the cooling fan is close to the tangential direction of the cooling fan's rotation direction. At this time, the vortex generated by the cooling fan's air outlet is less. Therefore, by setting the angle between the fan blade and the main body to between 30° and 60°, the air outlet efficiency of the cooling fan can be effectively improved, thereby improving the heat dissipation efficiency and heat dissipation effect of the air fryer, and effectively improving the user experience.

[0009] In an optional embodiment, the angle between the fan blades and the main body is oriented in the same direction as the rotation direction of the cooling fan. By setting the angle between the fan blades and the main body to face the rotation direction of the cooling fan, not only can the turbulence of the airflow outside the cooling fan be reduced, thereby reducing the resistance and noise when the cooling fan rotates, but the directional airflow capability of the cooling fan can also be enhanced, thereby improving the heat dissipation efficiency and heat dissipation effect of the air fryer.

[0010] In an optional embodiment, the fan blades are adapted to have a curved extension structure from one end near the center of the main body to the end away from the center of the main body, and the bending direction of the fan blades is the same as the rotation direction of the cooling fan. By setting the cooling fan as a spiral fan blade structure, more external cold air can be drawn into the cooling duct to form a cooling airflow, thereby dissipating heat from the body and effectively improving the cooling efficiency and cooling effect of the air fryer.

[0011] In one optional embodiment, an air duct plate is provided at the top of the cooking cavity, and an upper core is provided above the air duct plate. At least a portion of the heat dissipation air duct is adapted to be formed between the upper core and the air duct plate. The cooling fan is disposed between the upper core and the air duct plate. An arc-shaped guide structure extending downwards from the upper core is provided on the outer side of the cooling fan, and the arc-shaped guide structure corresponds at least partially to the cooling fan. By providing the downward-extending arc-shaped guide structure on the outer side of the cooling fan, the cooling airflow generated by the cooling fan can be better guided. This not only reduces the kinetic energy loss of the cooling airflow during its flow, thereby increasing the flow rate of the cooling airflow within the machine body and improving heat dissipation efficiency, but also reduces the friction and collision between the cooling airflow and the inner wall of the heat dissipation air duct when the cooling fan is blowing air, thereby reducing the noise of the cooling fan during operation and effectively improving the user experience.

[0012] In one optional embodiment, the upper mechanism is provided with a heat dissipation vent communicating with the atmosphere, and the heat dissipation vent is adapted to correspond to at least a portion of the cooling fan. By setting the heat dissipation vent to correspond to at least a portion of the cooling fan, external cold air can be drawn into the heat dissipation duct by the cooling fan more effectively and quickly, thereby dissipating heat from the body and effectively improving the heat dissipation efficiency and effect of the cooling fan.

[0013] In an optional embodiment, the body of the air fryer is provided with a mounting cavity communicating with the heat dissipation duct. A drive system is housed within the mounting cavity, and the drive system is adapted to extend and connect to the cooling fan and the hot air circulation system. By using the same drive system to drive the cooling fan and the hot air circulation system, not only can the energy consumption of the air fryer be reduced while ensuring heat dissipation efficiency, thereby reducing user operating costs and improving the user experience, but the overall size of the air fryer can also be reduced, thus reducing its space occupation for easier storage and transportation. Furthermore, using the same drive system for the cooling fan and the hot air circulation system also simplifies the cooking process and improves user convenience.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] This application sets the included angle between the fan blades and the main body to an acute angle, which can change the air outlet direction of the cooling fan, so that the air outlet direction of the cooling fan can be deflected to the tangential direction of the cooling fan's rotation direction, thereby dissipating air better and faster, reducing the generation of eddies, and thus improving the cooling efficiency and cooling effect of the cooling fan, effectively improving the user experience. Attached Figure Description

[0016] Figure 1This is an overall cross-sectional view of a novel air fryer with good heat dissipation according to this utility model.

[0017] Figure 2 This is a schematic diagram of the overall cooling fan of a novel air fryer with good heat dissipation effect according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the cooling fan of a novel air fryer with good heat dissipation effect according to this utility model. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," and "above" are used here to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the term "a" should be understood as "at least one" or "one or more," meaning that in one embodiment, the quantity of an element can be one, while in another embodiment, the quantity of the element can be one or more. The term "a" should not be construed as a limitation on the quantity. The use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as a limitation on the scope of protection of this utility model.

[0025] Appendix Figure 1 To be continued Figure 3 The diagram shown is a schematic diagram of the first embodiment of a novel air fryer with good heat dissipation provided by this utility model. The air fryer includes a body 10, a cooking chamber 11 with an open inner side of the body 10, and a hot air circulation system 20 communicating with the cooking chamber 11. The hot air circulation system 20 is adapted to generate circulating heat flow and introduce it into the cooking chamber 11 to cook the food in the cooking chamber 11.

[0026] like Figure 1As shown, in an optional embodiment, the cooking cavity 11 is surrounded by at least a portion of a heat dissipation duct 12 communicating with the atmosphere. A cooling fan 30 for generating a cooling airflow is provided within the heat dissipation duct 12. The cooling fan 30 includes a main body 31 and a plurality of fan blades 32 spaced apart on the main body and extending outwards. The angle between the fan blades 32 and the main body 31 is preferably an acute angle less than 90°. By setting the angle between the fan blades 32 and the main body 31 to an acute angle, the airflow direction of the cooling fan 30 can be effectively changed, allowing the airflow direction of the cooling fan 30 to deviate towards the tangential direction of the cooling fan 30's rotation direction, thereby improving airflow efficiency and reducing turbulence generation. This enhances the heat dissipation efficiency and effect of the cooling fan 30, effectively improving the user experience.

[0027] like Figure 2 As shown, in an optional embodiment, the fan blade 32 and the main body 31 are adapted to be integrally formed. By integrally forming the fan blade 32 and the main body 31, not only can the structure of the cooling fan 30 be simplified, and the production cost and user cost of the cooling fan 30 be reduced, but the connection strength between the fan blade 32 and the main body 31 can also be guaranteed, thereby ensuring smooth airflow and effectively improving the performance stability of the cooling fan 30.

[0028] like Figure 2 and Figure 3 As shown, in an optional embodiment, the main body 31 includes a main body portion 311 and an extension portion 312 spaced apart on the outer side of the main body portion 311. The fan blades 32 are adapted to be disposed on the extension portion 312, and suction notches 33 are formed between the ends of the plurality of fan blades 32 near the main body portion 311. By providing the suction notches 33 at the ends of the fan blades 32 near the main body portion 311, more external cold air can be drawn in from the center by the cooling fan 30 through the suction notches 33 and thrown out from the outside, thereby forming a cooling flow. This not only effectively improves the cooling efficiency of the cooling fan 30, but also effectively enhances the cooling effect.

[0029] like Figure 3As shown, in an optional embodiment, the distance between the top plane and the bottom plane of the fan blade 32 is h, satisfying 6cm ≤ h ≤ 18cm. When the distance h between the top plane and the bottom plane of the fan blade 32 is greater than 18cm, such as h being 20cm, 21cm, or 22cm, the overall volume of the cooling fan 30 is large, resulting in higher production and usage costs, and also leading to a larger overall volume of the air fryer, thus occupying a large amount of storage and transportation space, and a poor user experience. When the distance h between the top plane and the bottom plane of the fan blade 32 is less than 6cm, such as h being 5cm, 4cm, or 3cm, the overall volume of the cooling fan 30 is small, and the cooling flow generated by the cooling fan 30 is insufficient to meet the cooling requirements of the air fryer, which can easily lead to the overall volume of the air fryer being small. The high body temperature can cause burns to users, compromising user safety and potentially damaging the control system, connecting circuits, and other electrical components within the air fryer, thus affecting its performance stability. Therefore, the distance h between the top and bottom planes of the fan blades 32 should satisfy 6cm ≤ h ≤ 18cm, preferably 11cm, 12cm, or 13cm. By rationally setting the height of the cooling fan 30, not only can the production and user costs of the air fryer be reduced, but the overall volume of the cooling fan 30 can also be reduced while ensuring heat dissipation efficiency and effect, thereby minimizing the space occupied by the air fryer and effectively improving the user experience.

[0030] like Figure 3As shown, in an optional embodiment, the included angle between the fan blade 32 and the main body 31 is α, which satisfies 30°≤α≤60°. When the angle α between the fan blade 32 and the main body 31 is greater than 60°, such as when α is 70°, 75°, or 80°, the airflow direction of the cooling fan 30 will be biased towards the upper side of the cooling fan 30, resulting in more vortices at the upper side of the cooling fan 30. This not only easily affects the airflow efficiency of the cooling fan 30, thus affecting the heat dissipation efficiency of the air fryer, but also easily generates more noise due to the friction and collision between the vortices and the inner wall of the heat dissipation duct 12, resulting in a poor user experience. When the angle α between the fan blade 32 and the main body 31 is less than 30°, such as when α is 20°, 15°, or 10°, the area of ​​the frontal surface of the fan blade 32 is smaller, and the airflow that the cooling fan 30 can drive when it rotates is less. The heat dissipation efficiency and heat dissipation effect of the cooling fan 30 are poor, resulting in a poor user experience. Therefore, the angle α between the fan blade 32 and the main body 31 should satisfy 30°≤α≤60°, preferably 45°. When the angle between the fan blade 32 and the main body 31 is between 30° and 60°, the air outlet direction of the cooling fan 30 is close to the tangential direction of the rotation direction of the cooling fan 30. At this time, the vortex generated by the air outlet of the cooling fan 30 is less. Therefore, by setting the angle between the fan blade 32 and the main body 31 to between 30° and 60°, the air outlet efficiency of the cooling fan 30 can be effectively improved, thereby improving the heat dissipation efficiency and heat dissipation effect of the air fryer and effectively improving the user experience.

[0031] In an optional embodiment, the angle between the fan blade 32 and the main body 31 is oriented in the same direction as the rotation direction of the cooling fan 30. By setting the angle between the fan blade 32 and the main body 31 to face the rotation direction of the cooling fan 30, not only can the turbulence of the airflow outside the cooling fan 30 be reduced, thereby reducing the resistance and noise when the cooling fan 30 rotates, but the directional airflow capability of the cooling fan 30 can also be enhanced, thereby improving the heat dissipation efficiency and heat dissipation effect of the air fryer.

[0032] In an optional embodiment, the fan blade 32 is adapted to have a curved extension structure from one end near the center of the main body 31 to the end away from the center of the main body 31, and the bending direction of the fan blade 32 is adapted to be the same as the rotation direction of the cooling fan 30. By setting the cooling fan 30 as a spiral fan blade structure, more external cold air can be drawn into the cooling duct 12 to form a cooling flow, thereby dissipating heat from the body 10 and effectively improving the heat dissipation efficiency and effect of the air fryer.

[0033] like Figure 1As shown, in an optional embodiment, the cooking cavity 11 is provided with an air duct plate 13 at the top, and an upper core 14 is provided above the air duct plate 13. The upper core 14 and the air duct plate 13 are adapted to form at least a portion of the heat dissipation air duct 12. The cooling fan 30 is disposed between the upper core 14 and the air duct plate 13. An arc-shaped guide structure 141 extending downward from the upper core 14 is provided on the outer side of the cooling fan 30. The arc-shaped guide structure 141 at least partially corresponds to the cooling fan 30. By providing the downward-extending arc-shaped guide structure 141 on the outer side of the cooling fan 30, the cooling airflow generated by the cooling fan 30 can be better guided. This not only reduces the kinetic energy loss of the cooling airflow during the flow process, thereby increasing the flow rate of the cooling airflow in the machine body and thus improving the heat dissipation efficiency, but also reduces the friction and collision between the cooling airflow and the inner wall of the heat dissipation air duct 12 when the cooling fan 30 is blowing air, thereby reducing the noise of the cooling fan 30 during operation and effectively improving the user experience.

[0034] like Figure 1 As shown, in an optional embodiment, the upper mechanism 14 is provided with a heat dissipation vent 142 communicating with the atmosphere, and the heat dissipation vent 142 is adapted to correspond to at least a portion of the cooling fan 30. By setting the heat dissipation vent 142 to correspond to at least a portion of the cooling fan 30, external cold air can be drawn into the heat dissipation duct 12 by the cooling fan 30 more effectively and quickly, thereby dissipating heat from the body 10 and effectively improving the heat dissipation efficiency and effect of the cooling fan 30.

[0035] like Figure 1 As shown, in an optional embodiment, the body 10 has a mounting cavity 15 communicating with the heat dissipation duct 12. A drive system 40 is provided within the mounting cavity 15. The drive system 40 includes a drive motor 41, the shaft of which is adapted to extend and connect to the cooling fan 30 and the hot air circulation system 20. By using the same drive system 40 to drive the cooling fan 30 and the hot air circulation system 20, not only can the energy consumption of the air fryer be reduced while ensuring heat dissipation efficiency, thereby reducing user operating costs and improving user experience, but the overall volume of the air fryer can also be reduced, thus reducing the space occupied by the air fryer for easier storage and transportation. Simultaneously, by using the same drive system 40 to drive the cooling fan 30 and the hot air circulation system 20, the cooking process can also be simplified, improving user convenience.

[0036] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention, and the objective of the present invention has been fully and effectively achieved. Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. For those skilled in the art, several simple deductions or substitutions can be made without departing from the present invention, and all such modifications or substitutions should be considered to fall within the scope of patent protection defined by the claims submitted herein.

Claims

1. A novel air fryer with good heat dissipation effect, comprising a machine body, a cooking cavity arranged in the machine body, and a hot air circulation system communicating with the cooking cavity, characterized in that, The cooking cavity is surrounded by a heat dissipation air duct which is in communication with the atmosphere, and the heat dissipation air duct is provided with a heat dissipation fan, and the heat dissipation fan comprises a main body and a plurality of fan blades which are spaced apart on the main body and extend outward, and the included angle between the fan blade and the main body is an acute angle.

2. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The fan blade and the main body are adapted to be integrally formed.

3. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The main body comprises a main body part and an extension part which is spaced apart on the outside of the main body part, and the fan blade is arranged on the extension part, and a plurality of fan blades are formed between the one end close to the main body part.

4. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The distance between the top plane of the fan blade and the bottom plane of the fan blade is h, and 6cm≤h≤18cm is satisfied.

5. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The included angle between the fan blade and the main body is α, and 30°≤α≤60° is satisfied.

6. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The included angle between the fan blade and the main body is in the same direction as the rotation direction of the heat dissipation fan.

7. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The fan blade is adapted to be a curved extension structure from one end close to the center of the main body to one end away from the center of the main body, and the bending direction of the fan blade is the same as the rotation direction of the heat dissipation fan.

8. The new air fryer with good heat dissipation effect according to claim 1, characterized in that, The top of the cooking cavity is provided with an air duct plate, and an upper machine core is arranged above the air duct plate, and the upper machine core and the air duct plate are adapted to form at least part of the heat dissipation air duct, and the heat dissipation fan is arranged between the upper machine core and the air duct plate, and the outer side of the heat dissipation fan is provided with an arc flow guide structure formed by the downward extension of the upper machine core, and the arc flow guide structure at least partially corresponds to the heat dissipation fan.

9. The new air fryer with good heat dissipation effect according to claim 8, characterized in that, The upper machine core is provided with a heat dissipation port in communication with the atmosphere, and the heat dissipation port is adapted to correspond to at least part of the heat dissipation fan.

10. The new air fryer with good heat dissipation effect according to any one of claims 1-9, characterized in that, The machine body is provided with a mounting cavity in communication with the heat dissipation air duct, and the mounting cavity is provided with a driving system, and the driving system is adapted to be extended and connected with the heat dissipation fan and the hot air circulation system.

Images