Fan assembly and air fryer

Abstract

The utility model discloses a fan assembly and an air fryer. The fan assembly and the air fryer have the advantage of being beneficial to improving the structural rigidity of a heating impeller. The fan assembly comprises a driving motor with an output rotating shaft, a heat dissipation impeller and a heating impeller, the heat dissipation impeller and the heating impeller are installed on the output rotating shaft and located on the same side of the driving motor, and the heat dissipation impeller comprises a plurality of heat dissipation blades right opposite to the driving motor. The heating impeller comprises a heating wheel disc, a plurality of heating blades installed on the lower side face of the heating wheel disc and a supporting piece attached to the upper side face of the heating wheel disc, and the supporting piece is arranged in the center of the upper side face of the heating wheel disc.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances, in particular to a fan assembly and an air fryer. Background Art

[0002] An air fryer is an appliance that uses high-temperature air to fry food. The most important part is the fan assembly, which includes a motor and a heat dissipation impeller and a heating impeller mounted on the output shaft of the motor. The rotation of the output shaft of the motor drives the heat dissipation impeller and the heating impeller to rotate at high speed. The heating impeller drives the heated air to flow in the cooking chamber to fry the food. The rotation of the heat dissipation impeller drives the air to flow through the motor to dissipate the heat of the motor. Since the wind pressure generated by the rotation of the heating impeller is very high, the current heating impeller will bend when it rotates. In the long run, the heating impeller will deform, resulting in noise, which will also directly affect the working life of the motor.

[0003] Therefore, there is an urgent need for a fan assembly and an air fryer with a heating impeller having high structural rigidity to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a fan assembly with a heating impeller having high structural rigidity.

[0005] Another object of the utility model is to provide an air fryer, which includes a fan assembly with a heating impeller having a large structural rigidity.

[0006] To achieve the above-mentioned purpose, the fan assembly provided by the utility model includes a driving motor with an output shaft and a heat dissipation impeller and a heating impeller respectively installed on the output shaft, the heat dissipation impeller and the heating impeller are on the same side of the driving motor, the heat dissipation impeller includes a plurality of heat dissipation blades facing the driving motor, the heating impeller includes a heating wheel disc, a plurality of heating blades installed on the lower side of the heating wheel disc and a support member attached to the upper side of the heating wheel disc, and the support member is arranged at the center position of the upper side of the heating wheel disc.

[0007] Preferably, the support member is a disc structure, and the radius of the support member is smaller than the radius of the heating wheel.

[0008] Preferably, the heating blade comprises a mounting portion and a blade portion which are orthogonal to each other, and the mounting portion is attached to the lower side of the heating wheel disc.

[0009] Preferably, the heat dissipation impeller further comprises a heat dissipation wheel disc, and the heat dissipation wheel disc is formed into heat dissipation blades by die cutting and bending.

[0010] Preferably, the heating impeller is fixed to the output shaft via a connecting sleeve, and the connecting sleeve is detachably mounted on the output shaft.

[0011] Preferably, the fan assembly of the utility model further comprises a first protective shell mounted on the upper end of the driving motor and a second protective shell mounted on the lower end of the driving motor, and the first protective shell is connected to the second protective shell.

[0012] Preferably, a plurality of first mounting seats are formed on the outer side of the first protective shell, a plurality of second mounting seats are formed on the outer side of the second protective shell, and the first mounting seats are connected to the second mounting seats via a connecting member.

[0013] Preferably, the second mounting seat extends downward to form a mounting arm that is tilted outward, and the lower end of the mounting arm forms a mounting platform with a mounting through hole.

[0014] Preferably, all the mounting arms together surround the heat dissipation impeller.

[0015] To achieve the above-mentioned second purpose, the utility model also provides an air fryer, which includes the above-mentioned fan assembly.

[0016] Compared with the prior art, the utility model mounts a support member on the upper side of the heating disc and arranges the support member at the center of the heating disc, so as to strengthen the structural support of the heating disc and improve the structural rigidity of the heating disc. The heating disc is not easily deformed and remains unchanged when the heating impeller rotates at high speed, thereby avoiding the generation of noise.

[0017] It is understandable that, since the air fryer of the utility model includes the above-mentioned fan assembly, it has the advantage of making the structural rigidity of the heating impeller large, and the heating impeller does not remain deformed when rotating at a high speed, thereby avoiding the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the fan assembly of the utility model.

[0019] Figure 2 It is a front view of the fan assembly of the utility model.

[0020] Figure 3 It is a three-dimensional diagram of the fan assembly of the utility model at another angle.

[0021] Figure 4 yes Figure 3 The fan assembly shown is a three-dimensional view after the cooling impeller and the heating impeller are separated.

[0022] Figure 5 It is a stereoscopic diagram of the fan assembly of the utility model after the heat dissipation impeller and the heating impeller are hidden and the first protective shell and the second protective shell are separated from the driving motor.

[0023] Figure 6 It is a top view of the heating impeller of the utility model.

[0024] Figure 7 is along Figure 6 The cross-sectional view obtained after cutting along the AA line segment. DETAILED DESCRIPTION

[0025] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.

[0026] The utility model discloses a fan assembly 100. In the embodiment provided by the utility model, the fan assembly 100 is applied to an air fryer. Of course, according to design requirements, the fan assembly 100 of the utility model can also be applied to other occasions, such as an oven, etc. In addition to the above-mentioned fan assembly 100, the air fryer also includes a casing, a heating pipe, and a pot, etc. The fan assembly 100 cooperates with the heating pipe to generate a high-temperature airflow, and the high-temperature airflow is used to bake and fry the food in the pot.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the fan assembly 100 of the utility model includes a driving motor 10 having an output shaft 11 and a heat dissipation impeller 20 and a heating impeller 30 respectively mounted on the output shaft 11. The heat dissipation impeller 20 and the heating impeller 30 are located on the same side of the driving motor 10. In the embodiment provided by the utility model, the heat dissipation impeller 20 and the heating impeller 30 are located on the lower side of the driving motor 10. The heat dissipation impeller 20 includes a plurality of heat dissipation blades 21 facing the driving motor 10. When the heat dissipation impeller 20 rotates, the airflow generated by the heat dissipation blades 21 blows toward the driving motor 10 for heat dissipation. The heating impeller 30 includes a heating wheel disc 31, a plurality of heating blades 32 mounted on the lower side of the heating wheel disc 31, and a support member 33 mounted on the upper side of the heating wheel disc 31. The support member 33 is arranged at the center of the back of the heating wheel disc 31. When the heating impeller 30 rotates, the airflow generated by the heating blades 32 blows toward the heating pipe. The utility model mounts a support member 33 on the upper side of the heating disc 31 and arranges the support member 33 at the center of the heating disc 31, and utilizes the support member 33 to strengthen the structural support of the heating disc 31, thereby improving the structural rigidity of the heating disc 31. The heating disc 31 is not easily deformed and remains unchanged when the heating impeller 30 rotates at a high speed, thereby avoiding the generation of noise.

[0028] Preferably, if Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the support member 33 is a disc structure, and the radius of the support member 33 is smaller than the radius of the heating wheel disc 31. The support member 33 is a regular structure and is located at the center of the heating wheel disc 31. The two are coaxially arranged, but not limited to this, which helps to increase the stability of the structure. It is understandable that the provision of the support member 33 strengthens the support for the heating wheel disc 31, and the heating wheel disc 31 is not easily deformed. The support member 33 can be attached to the upper side of the heating wheel disc 31 by welding, bonding, riveting or screw locking. In the embodiment provided by the utility model, the heating wheel disc 31 and the support member 33 are two independent structures, but it is understandable that the heating wheel disc 31 and the support member 33 can be made into an integrated structure.

[0029] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the heating blade 32 includes a mounting portion 321 and a blade portion 322 which are orthogonal to each other. The mounting portion 321 is attached to the lower side of the heating disc 31, and at this time, the blade portion 322 is orthogonal to the heating disc 31. When the heating impeller 30 rotates, the generated airflow blows directly to the heating tube. Preferably, the mounting portion 321 can be attached to the lower side of the heating disc 31 by welding, bonding, riveting or screw locking. In the embodiment provided by the utility model, a total of 8 heating blades 32 are provided, but this number is not limited and can be increased or decreased as needed. The corners of the blade portion 322 are chamfered to increase the stability of the wind guide.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the heat dissipation blade 21 also includes a heat dissipation wheel 22, and the heat dissipation wheel 22 is formed into the heat dissipation blade 21 by die cutting and bending. At this time, the heat dissipation impeller 20 is an integrated structure with better structural performance. Preferably, the heat dissipation blade 21 is substantially orthogonal to the heat dissipation wheel 22, but not limited to this. Preferably, in the embodiment provided by the utility model, a total of 11 heat dissipation blades 21 are formed, but this number is not limited and can be increased or decreased as needed.

[0031] like Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the heating impeller 30 is fixed to the output shaft 11 through a connecting sleeve 40, and the connecting sleeve 40 is detachably mounted on the output shaft 11. The connecting sleeve 40 can facilitate the disassembly and assembly of the heating impeller 30. Preferably, the connecting sleeve 40 is a cylindrical structure and is fixed to the output shaft 11 by a locking pin.

[0032] like Figures 1 to 5As shown, the fan assembly 100 of the utility model further includes a first protective shell 50 mounted on the upper end of the drive motor 10 and a second protective shell 60 mounted on the lower end of the drive motor 10, and the first protective shell 50 is connected to the second protective shell 60. The first protective shell 50 and the second protective shell 60 provide protection for the upper and lower ends of the drive motor 10, respectively. Preferably, the first protective shell 50 and the second protective shell 60 are hollow structures, which not only play a protective role, but also allow airflow exchange and enhance the heat dissipation of the drive motor 10.

[0033] like Figures 1 to 5 As shown, a plurality of first mounting seats 51 are formed on the outer side of the first protective shell 50, and a plurality of second mounting seats 61 are formed on the outer side of the second protective shell 60. The first mounting seats 51 and the second mounting seats 61 are connected by a connecting member 70 to realize the mutual connection and fixation of the first protective shell 50 and the second protective shell 60.

[0034] like Figures 1 to 5 As shown, the second mounting seat 61 extends downward to form a mounting arm 62 that is tilted outward, and the lower end of the mounting arm 62 forms a mounting platform 64 with a mounting through hole 63. The mounting platform 64 can be fixed by inserting a screw into the mounting through hole 63, thereby fixing the fan assembly 100. Preferably, the mounting arm 62 is also provided with a rib structure to enhance its own structural strength. Furthermore, all the mounting arms 62 surround the heat dissipation impeller 20 together, which makes the structure of the fan assembly 100 more compact.

[0035] Figure 1 , Figure 2 and Figure 3 In the figure, the direction indicated by the arrow Z is from top to bottom.

[0036] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A fan assembly, characterized in that: It includes a driving motor with an output shaft and a heat dissipation impeller and a heating impeller respectively mounted on the output shaft, the heat dissipation impeller and the heating impeller are located on the same side of the driving motor, the heat dissipation impeller includes a plurality of heat dissipation blades facing the driving motor, the heating impeller includes a heating wheel disc, a plurality of heating blades mounted on the lower side of the heating wheel disc and a support member attached to the upper side of the heating wheel disc, the support member is arranged at the center position of the upper side of the heating wheel disc.

2. The fan assembly according to claim 1, characterized in that: The support member is a disc structure, and the radius of the support member is smaller than the radius of the heating wheel.

3. The fan assembly according to claim 1, characterized in that: The heating blade comprises a mounting portion and a blade portion which are orthogonal to each other, and the mounting portion is attached to the lower side surface of the heating wheel disc.

4. The fan assembly according to claim 1, characterized in that: The heat dissipation impeller also includes a heat dissipation wheel disc, and the heat dissipation wheel disc is formed into the heat dissipation blades by die cutting and bending.

5. The fan assembly according to claim 1, characterized in that The heating impeller is fixed to the output shaft via a connecting sleeve, and the connecting sleeve is detachably mounted on the output shaft.

6. The fan assembly according to claim 1, characterized in that It also includes a first protective shell sleeved on the upper end of the driving motor and a second protective shell sleeved on the lower end of the driving motor, and the first protective shell is connected to the second protective shell.

7. The fan assembly according to claim 6, characterized in that A plurality of first mounting seats are formed on the outer side of the first protective shell, a plurality of second mounting seats are formed on the outer side of the second protective shell, and the first mounting seats are connected to the second mounting seats via a connecting member.

8. The fan assembly according to claim 7, characterized in that The second mounting seat extends downward to form a mounting arm that is tilted outward, and the lower end of the mounting arm forms a mounting platform with a mounting through hole.

9. The fan assembly according to claim 8, characterized in that: All the mounting arms together surround the heat dissipation impeller.

10. An air fryer, characterized in that: Comprising a fan assembly as described in any one of claims 1-9.

Images