An air fryer

Abstract

The application provides an air fryer, which comprises a motor assembly and a motor mounting seat. The motor assembly comprises a motor and a fixing support which are fixed as a whole. A shock pad is further mounted on the fixing support. The lower end of the shock pad protrudes from the lower end of the fixing support. The fixing support is supported on the motor mounting seat through the shock pad. The upper end of the shock pad protrudes from the upper end of the fixing support. The upper end of the shock pad is formed with a first limiting groove for mounting a metal pad. A fastener passes through the metal pad, the shock pad and the fixing support from top to bottom, so that the fixing support is fixed on the motor mounting seat. Through the above structure, the first limiting groove is pre-set on the upper end of the shock pad. The metal pad is accurately assembled into the first limiting groove. The reliable positioning of the metal pad is realized by using the first limiting groove.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, specifically to an air fryer. Background Technology

[0002] In existing technologies, air fryers are generally equipped with a hot air assembly, whose core function is to cook food by generating hot air. Specifically, the air fryer head usually contains a drive motor, which drives the hot air assembly to rotate, thereby generating the hot air required for cooking.

[0003] Air fryers currently on the market generally suffer from significant noise levels. Analyzing the sources of this noise reveals two main issues: firstly, the wind noise generated during fan rotation, and secondly, the vibration noise caused by the motor's operation. The noise generated by the vibration and friction between the motor's mounting bracket and the motor base has a particularly noticeable impact on the overall noise level.

[0004] To mitigate motor vibration noise, a common industry solution is to install silicone damping washers on the motor mounting bracket. This allows the bracket to indirectly contact the motor mount via the washer, and the washer's flexibility effectively reduces vibration transmission, thus lowering noise. Structurally, the damping washer is typically embedded within the bracket, with its lower end protruding from the bracket's lower surface and its upper end protruding from the bracket's upper surface. A metal washer is also fitted to the upper end of the washer. During assembly, bolts must be passed through the metal washer, the damping washer, and the bracket in sequence before being securely fastened to the motor mount below.

[0005] However, most metal washers currently on the market have the same cross-sectional dimensions as vibration damping washers. This design causes significant inconvenience when assembling motors: during installation, the metal washers must be precisely aligned with the vibration damping washers before bolts are inserted and the washers are secured to the motor mounting bracket. However, due to the small size of the metal washers, not only is alignment difficult, but the washers are also prone to falling off during assembly, severely impacting assembly efficiency and convenience. Summary of the Invention

[0006] To address the inconvenience of installing metal gaskets in existing air fryers, this application provides a novel motor mounting structure that effectively improves the convenience of the air fryer manufacturing process.

[0007] This application is achieved through the following means:

[0008] This application provides an air fryer, including a motor assembly and a motor mounting base. The motor assembly includes a motor and a fixed bracket fixed together. A shock-absorbing pad is also installed on the fixed bracket. The lower end of the shock-absorbing pad protrudes from the lower end of the fixed bracket, and the fixed bracket is supported on the motor mounting base by the shock-absorbing pad. The upper end of the shock-absorbing pad protrudes from the upper end of the fixed bracket, and a first limiting groove for mounting a metal gasket is formed on the upper end of the shock-absorbing pad. Fasteners pass through the metal gasket, the shock-absorbing pad, and the fixed bracket from top to bottom, fixing the fixed bracket to the motor mounting base.

[0009] Using the above structure, a first limiting groove is pre-set at the upper end of the shock-absorbing pad, allowing the metal pad to be precisely assembled into the first limiting groove, thus achieving reliable positioning of the metal pad. On one hand, the metal pad is effectively constrained by the first limiting groove, preventing it from easily falling off the shock-absorbing pad during assembly. This eliminates the need for repeated adjustments or repositioning of the pad, significantly reducing assembly difficulty and greatly improving overall assembly efficiency. On the other hand, the first limiting groove ensures that the metal pad is always in the correct pre-set installation position, preventing uneven force distribution due to pad misalignment. When the motor vibrates during operation, the metal pad can evenly bear the vibration load transmitted by the motor mounting bracket, effectively dispersing vibration energy and reducing vibration noise caused by force imbalance, further optimizing the vibration damping and noise reduction effect.

[0010] In a preferred embodiment, the metal gasket has a first through hole, the shock-absorbing pad has a second through hole, and the fastener passes through the first through hole and the second through hole to be fixed to the motor mounting base. The diameter of the first through hole is smaller than the diameter of the second through hole.

[0011] With the above structure, the size of the second through-hole on the shock-absorbing pad is larger than the size of the first through-hole on the metal gasket. On the one hand, the smaller first through-hole can form a precise fit with fasteners (such as bolts), providing reliable positioning for the fasteners and preventing them from shifting during assembly, thus ensuring the accuracy of the overall structural assembly. On the other hand, the larger second through-hole reduces the contact area in two ways: firstly, by reducing the contact area between the shock-absorbing pad and the motor mounting base, and secondly, by reducing the contact range between the metal gasket and the shock-absorbing pad. By reducing the contact area in these two ways, the transmission path and intensity of vibration between different components can be effectively weakened, thereby further reducing the noise generated by vibration transmission during air fryer operation and optimizing the user experience.

[0012] In a preferred embodiment, the motor mounting base is provided with a fixing post that cooperates with the fastener for fixation, and the shock-absorbing pad is provided with a second through hole, the upper end of the fixing post extending into the second through hole.

[0013] With the above structure, the fixing post on the motor mounting base can extend further into the second through hole of the shock-absorbing pad. On the one hand, the fixing post, through precise matching with the second through hole, can pre-position the motor, effectively preventing positional deviation during assembly and ensuring the accuracy of the motor's installation position from the source, laying a good foundation for subsequent fastener fixing. On the other hand, after the fixing post extends into the second through hole, the required length of fasteners (such as bolts) can be significantly shortened, allowing the fasteners to form a stable connection with the fixing post without being too long, significantly improving the fixing firmness between the fasteners and the fixing post. This firm connection can also reduce the vibration gap caused by loose component connections during motor operation, thereby weakening the noise caused by vibration transmission to a certain extent and further optimizing the working noise performance of the air fryer.

[0014] In a preferred embodiment, the inner wall of the second through hole is provided with a protruding rib, and the protruding rib is interference-fitted with the fixing column.

[0015] The above structure further optimizes the stability of the fit between the fixing post and the second through hole. The protruding rib forms a tight interference fit with the outer surface of the fixing post: on the one hand, the radial clamping force generated by the interference fit firmly restricts the position of the fixing post within the second through hole, effectively preventing radial displacement or loosening of the fixing post and ensuring a stable fit between the fixing post and the second through hole; on the other hand, this stable fit further enhances the positioning effect on the motor, ensuring the accuracy of the motor installation position from the assembly details, and providing more reliable structural support for subsequent fastener fixing and stable motor operation.

[0016] In a preferred embodiment, the motor mounting base is provided with a second limiting groove, the lower end of the shock-absorbing pad is limited within the second limiting groove, and the fixing bracket abuts against the top of the side wall of the second limiting groove.

[0017] With the above structure, on the one hand, the second limiting groove can completely wrap around the circumference of the damping pad. Through the fit and constraint between the groove wall and the outer circumference of the damping pad, the circumferential displacement of the damping pad is further restricted, preventing horizontal deviation or swaying during motor operation and enhancing the positioning stability of the damping pad. On the other hand, the motor's fixing bracket will naturally abut against the top of the side wall of the second limiting groove. The side wall can provide vertical limiting support for the fixing bracket, effectively preventing vertical deviation of the fixing bracket during assembly or use, ensuring that the fixing bracket always remains in a horizontal installation state, and providing a more reliable structural foundation for the stable operation of the motor.

[0018] In a preferred embodiment, the motor mounting base is provided with a fixing post that cooperates with the fastener for fixation, and the lower end of the fixing post is suspended.

[0019] By adopting the above structure, on the one hand, the suspended setting can effectively block the direct contact between the fixed column and the components below, greatly reducing the path and efficiency of heat transfer from below to the fixed column, avoiding accelerated aging of the fixed column due to long-term exposure to high temperature environment, and thus preventing the fixed failure caused by the decrease in structural strength, ensuring connection stability; on the other hand, the suspended design can also weaken the intensity of vibration transmitted from below to the fixed column, reducing the possibility of vibration being transmitted to the motor or other components through the fixed column, forming a synergistic effect with the vibration damping structure mentioned above, further reducing the overall noise level of the air fryer during operation.

[0020] In a preferred embodiment, the fixing bracket includes a main body and a plurality of spaced support arms extending outward from the periphery of the main body. The main body is located directly above the motor, and a through heat dissipation hole is provided on the main body. The heat dissipation hole extends circumferentially along the main body and its two ends are respectively close to two adjacent support arms.

[0021] By adopting the above structure, on the one hand, the larger heat dissipation holes can significantly improve the airflow rate, allowing more airflow generated during cooking to smoothly enter the motor and quickly remove the heat generated during motor operation, effectively cooling the motor and preventing the motor from being affected by long-term high-temperature operation, thus avoiding impact on its service life or performance stability; on the other hand, the larger area of ​​heat dissipation holes can reduce the amount of material used in the main body of the bracket while ensuring the structural strength of the fixed bracket, thereby reducing the overall weight of the fixed bracket and directly reducing material procurement and processing costs, thus balancing the practicality and economy of the structure.

[0022] In a preferred embodiment, a drive circuit board is fixed to the lower end of the main body, and the upper end of the drive circuit board is exposed through at least two heat dissipation holes.

[0023] With the above structure, on the one hand, the main body of the motor partially shields the drive circuit board, effectively isolating it from impurities or external impacts, providing physical protection for the drive circuit board and reducing its risk of damage; on the other hand, the drive circuit board exposed at the heat dissipation holes can directly and fully contact the airflow passing through the heat dissipation holes, using the airflow to quickly remove the heat generated by the circuit board during operation, avoiding performance abnormalities or malfunctions caused by high temperature accumulation, thereby ensuring the stability and reliability of the drive circuit board operation.

[0024] In a preferred embodiment, the main body includes a hollow outer ring and a fixing part located at the center of the outer ring. The fixing part and the outer ring are connected by a plurality of spaced connecting parts, and the heat dissipation hole is formed between two adjacent connecting parts.

[0025] With the above structure, from the perspective of structural strength, the multiple spaced connecting parts can evenly distribute the force between the outer ring and the fixed part, forming a stable support structure. This effectively ensures the overall structural strength of the motor body and avoids localized strength deficiencies caused by opening heat dissipation holes, ensuring that the motor is not easily deformed or damaged during long-term operation or under vibration. From the perspective of heat dissipation efficiency, the heat dissipation holes formed between adjacent connecting parts can be designed with a larger opening area while ensuring structural strength. The larger opening space can significantly reduce the resistance of airflow into the motor, allowing more airflow to flow smoothly into the motor, fully covering the core heat-generating components of the motor, quickly removing the heat generated during operation, achieving sufficient heat dissipation inside the motor, and preventing the motor from being affected by high temperature accumulation, thus avoiding performance degradation or shortened service life, thereby ensuring the stability and reliability of motor operation.

[0026] In a preferred embodiment, the connecting portion and the support arm are respectively provided in a one-to-one correspondence, and the axis of the connecting portion in the length direction is aligned with the axis of the support arm in the length direction.

[0027] With the above structure, on the one hand, the connecting part and the support arm are connected to the outer ring, and their aligned axes allow for a smoother force transmission path, avoiding additional stress concentration caused by directional misalignment. When bearing the weight of the motor or operating vibrations, the connecting part and the support arm can share the load and reinforce each other's support strength, significantly improving the overall structure's resistance to deformation and effectively compensating for the limitations of single-component support. On the other hand, this high-strength collaborative support structure provides a more stable mounting foundation for the motor, ensuring reliable installation and stable operation of the motor from a structural perspective. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure of the motor assembly of this application.

[0029] Figure 2 1. A partial exploded view of the motor assembly of this application.

[0030] Figure 3 A cross-sectional view of the motor assembly of this application.

[0031] Figure 4 An assembly diagram of the motor assembly of this application.

[0032] Figure 5 This application Figure 4 Enlarged view of section A.

[0033] The meanings of the numbers in the diagram are as follows: 1. Fixed bracket; 12. Main body; 120. Outer ring; 121. Fixed part; 122. Connecting part; 13. Support arm; 14. Heat dissipation hole; 2. Motor; 3. Shock-absorbing pad; 31. Second through hole; 311. Protruding rib; 32. First limiting groove; 33. Mounting groove; 4. Fastener; 5. Gasket; 51. First through hole; 6. Drive circuit board; 100. Motor mounting base; 101. Second limiting groove; 102. Fixed column. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this application, a detailed explanation will be provided below with reference to the accompanying drawings.

[0035] This application provides an air fryer. Specifically, the air fryer has a shell and a reflector disposed within the shell. The reflector divides the space within the shell into an upper mounting cavity and a lower cooking cavity. A motor assembly and a cooling fan are disposed within the mounting cavity, while a heating element and a circulating fan are disposed within the cooking cavity. The motor shaft of the motor assembly passes through the reflector from top to bottom, and the motor 2 simultaneously drives the cooling fan and the circulating fan to rotate. The airflow generated by the rotating circulating fan forms hot air under the action of the heating element, flowing within the cooking cavity to bake the food inside. It is understood that the specific form of the air fryer is not limited in this application; it can be a flip-top air fryer or a drawer-type air fryer. The motor 2 of the motor assembly can be a shaded-pole motor, a brushless DC motor, or an external rotor motor, driving the cooling fan and the circulating fan through the motor shaft and the rotor housing.

[0036] In the air fryer of this application, a motor assembly and a motor mounting base 100 are provided within the mounting cavity. The motor mounting base 100 is mounted above the reflector. The motor assembly includes an integrated motor 2 and a fixing bracket 1, and the motor assembly is mounted on the motor mounting base 100 via the fixing bracket 1. Specifically, an air duct plate can be provided within the mounting cavity, covering the cooling fan and forming an air duct for the cooling fan. The motor mounting base 100 can be integrally formed with the air duct plate; of course, the motor mounting base 100 can also be provided separately. The specific arrangement of the motor mounting base 100 is not specifically limited.

[0037] To reduce noise during motor 2 operation, a vibration damping pad 3 is installed on the mounting bracket 1 of motor 2. The upper end of the vibration damping pad 3 protrudes from the upper end of the mounting bracket 1, and the lower end of the vibration damping pad 3 protrudes from the lower end of the mounting bracket 1. The mounting bracket 1 is in spaced contact with the motor mounting base 100 through the vibration damping pad 3. The upper end of the vibration damping pad 3 protrudes from the upper end of the mounting bracket 1. A metal washer 5 is also provided at the upper end of the mounting bracket 1. Fasteners 4 pass through the metal washer 5, the vibration damping pad 3, and the mounting bracket 1 from top to bottom, fixing the mounting bracket 1 to the motor mounting base 100. It is understood that in this application, the vibration damping pad 3 is generally made of a flexible material, usually a silicone pad, and the fastener 4 can be a bolt or screw, etc.

[0038] To address the issue of low assembly efficiency caused by the metal gasket 5 easily detaching during installation, this application provides a first limiting groove 32 at the upper end of the shock-absorbing pad 3, within which the metal gasket 5 is installed. On one hand, the metal gasket 5 is effectively constrained by the first limiting groove 32, preventing it from easily detaching from the shock-absorbing pad 3 during assembly. This eliminates the need for repeated adjustments or repositioning of the gasket 5, significantly reducing assembly difficulty and greatly improving overall assembly efficiency. On the other hand, the first limiting groove 32 ensures that the metal gasket 5 is always in the preset correct installation position, preventing uneven force distribution due to gasket 5 misalignment. When the motor 2 vibrates during operation, the metal gasket 5 can evenly bear the vibration load transmitted by the motor 2 mounting bracket 1, effectively dispersing vibration energy and reducing vibration noise caused by force imbalance, further optimizing the vibration damping and noise reduction effect.

[0039] Specifically, the fixed bracket 1 is provided with a third through hole, and the side wall of the shock-absorbing pad 3 is provided with an annular mounting groove 33. After the shock-absorbing pad 3 is inserted into the third through hole, the fixed bracket 1 at the third through hole can be inserted into the mounting groove 33, thereby realizing the installation and fixation of the shock-absorbing pad 3. A second through hole 31 is provided on the shock-absorbing pad 3, and a first through hole 51 is provided on the metal gasket 5. The fastener 4 passes through the first through hole 51 and the second through hole 31 and is fixed to the motor mounting base 100. In one embodiment, the fastener 4 is a screw. The screw passes through the first through hole 51 and the second through hole 31 in sequence and is fixed to the fixing post 102 on the motor mounting base 100, thereby realizing the effective installation of the motor assembly.

[0040] Preferably, the size of the first through hole 51 is smaller than the size of the second through hole 31. On the one hand, the smaller size of the first through hole 51 allows for precise engagement with the fastener 4 (such as a bolt), providing reliable positioning for the fastener 4 and preventing misalignment during assembly, thus ensuring the accuracy of the overall structural assembly. On the other hand, the larger size of the second through hole 31 reduces the contact area in two ways: firstly, by reducing the contact area between the shock-absorbing pad 3 and the motor mounting base 100, and secondly, by reducing the contact range between the metal gasket 5 and the shock-absorbing pad 3. By reducing the contact area in these two aspects, the transmission path and intensity of vibration between different components can be effectively weakened, thereby further reducing the noise generated by vibration transmission during air fryer operation and optimizing the user experience.

[0041] In a preferred embodiment, the motor mounting base 100 is provided with a fixing post 102 for fixing to the fastener 4. The upper end of the fixing post 102 extends into the second through hole 31. On the one hand, the fixing post 102, through precise cooperation with the second through hole 31, can pre-position the motor 2, effectively avoiding positional deviation of the motor 2 during assembly, ensuring the accuracy of the motor 2's installation position from the source, and laying a good foundation for the subsequent fixing of the fastener 4. On the other hand, after the fixing post 102 extends into the second through hole 31, it can significantly shorten the required length of the fastener 4 (such as a bolt), so that the fastener 4 does not need to be too long to form a stable connection with the fixing post 102, significantly improving the fixing firmness between the fastener 4 and the fixing post 102. This firm connection can also reduce the vibration gap caused by loose component connections when the motor 2 is running, thereby weakening the noise caused by vibration transmission to a certain extent, and further optimizing the working noise performance of the air fryer.

[0042] Furthermore, the inner wall of the second through hole 31 is provided with a protruding rib 311, which is interference-fitted with the fixing post 102. With this configuration, the protruding rib 311 can form a tight interference fit with the outer surface of the fixing post 102. On the one hand, the radial clamping force generated by the interference fit can firmly restrict the position of the fixing post 102 in the second through hole 31, effectively preventing the fixing post 102 from radially shifting or loosening, and ensuring that the fixing post 102 and the second through hole 31 always maintain a stable fit. On the other hand, this stable fit relationship can further enhance the positioning effect of the motor 2, ensuring the accuracy of the installation position of the motor 2 from the assembly details, and providing more reliable structural support for the subsequent fixing of the fastener 4 and the stable operation of the motor 2.

[0043] In a preferred embodiment, the motor mounting base 100 is further provided with a second limiting groove 101. The lower end of the shock-absorbing pad 3 is disposed in the second limiting groove 101, and the fixing bracket 1 abuts against the top of the bottom wall of the second limiting groove 101. With this arrangement, on the one hand, the second limiting groove 101 can completely wrap around the circumference of the shock-absorbing pad 3. Through the fit and constraint between the groove wall and the outer periphery of the shock-absorbing pad 3, the circumferential displacement of the shock-absorbing pad 3 is further restricted, preventing it from shifting or shaking horizontally during the vibration of the motor 2, thus enhancing the positioning stability of the shock-absorbing pad 3. On the other hand, the fixing bracket 1 of the motor 2 will naturally abut against the top of the side wall of the second limiting groove 101. The side wall of the second limiting groove 101 can provide vertical limiting support for the fixing bracket 1, effectively preventing vertical displacement of the fixing bracket 1 during assembly or use, ensuring that the fixing bracket 1 always maintains a horizontal installation state, and providing a more reliable structural foundation for the stable operation of the motor 2.

[0044] In a preferred embodiment, the motor mounting base 100 is provided with a fixing post 102 that is fixed to the fastener 4, and the lower end of the fixing post 102 is suspended. This arrangement serves two purposes: firstly, the suspended design effectively blocks direct contact between the fixing post 102 and the components below, significantly reducing the path and efficiency of heat transfer from below to the fixing post 102. This prevents the fixing post 102 from aging prematurely due to prolonged exposure to high temperatures, thus preventing structural strength degradation and subsequent fixation failure, ensuring connection stability. Secondly, the suspended design also weakens the intensity of vibration transmission from below to the fixing post 102, reducing the possibility of vibration being transmitted to the motor 2 or other components through the fixing post 102. This synergizes with the aforementioned vibration damping structure, further reducing the overall noise level of the air fryer during operation.

[0045] In one embodiment, the motor mounting base 100 is disposed on the air duct plate, the side wall of the fixing column 102 is connected to the side wall of the air duct plate, the bottom wall of the fixing column 102 is spaced apart from the reflector below, and the second limiting groove 101 mentioned above can also be formed on the top wall of the fixing column 102. In this way, the connection between the side wall of the fixing column 102 and the side wall of the air duct plate can ensure the structural strength of the fixing column 102, and the distance between the bottom wall of the fixing column 102 and the reflector can reduce the heat transfer of the reflector and avoid the aging of the fixing column 102 structure.

[0046] In one embodiment of this application, the motor 2 of the motor assembly is preferably an external rotor brushless DC motor. A cooling fan is nested on the outside of the motor 2's housing, and the rotation of the motor 2 is driven by the rotor housing. The motor 2 is fixed to the upper mounting bracket 1 via its shaft. The mounting bracket 1 is mounted on the motor mounting base 100, effectively suspending the motor 2, which reduces vibration and noise. Of course, in other embodiments, the motor 2 can adopt other mounting methods; for example, the mounting bracket 1 can be located at the lower end of the motor 2, and the motor 2 can be seated on the mounting bracket 1.

[0047] In this embodiment, preferably, the fixed bracket 1 includes a main body 12 and a plurality of spaced support arms 13 extending outward from the periphery of the main body 12. The main body 12 is located directly above the motor 2, and a plurality of through-holes 14 are provided on the main body 12. The heat dissipation holes 14 extend circumferentially along the main body 12, and both ends of the heat dissipation holes 14 extend close to two adjacent support arms 13. With this arrangement, on the one hand, the larger heat dissipation holes 14 can significantly improve the airflow rate, allowing more airflow generated during cooking to smoothly enter the motor 2, quickly removing the heat generated by the motor 2 during operation, effectively cooling the motor 2, and preventing the motor 2 from being affected by long-term high-temperature operation, thus affecting its service life or performance stability; on the other hand, the larger area of ​​the heat dissipation holes 14 can reduce the amount of material used in the main body 12 of the bracket while ensuring the structural strength of the fixed bracket 1, thereby reducing the overall weight of the fixed bracket 1, and directly reducing material procurement and processing costs, thus taking into account both structural practicality and economy.

[0048] Preferably, a drive circuit board 6 is fixed to the lower end of the main body 12, and the upper end of the drive circuit board 6 is exposed through at least two heat dissipation holes 14. That is, the drive circuit board 6 extends to cover at least two heat dissipation holes 14, but it is not required to completely cover the two heat dissipation holes 14. It is sufficient to ensure that both ends of the drive circuit board 6 are exposed to different heat dissipation holes 14. With this arrangement, on the one hand, the main body 12 of the motor 2 will partially shield the drive circuit board 6, which can effectively isolate impurities or external impacts, provide physical protection for the drive circuit board 6, and reduce its risk of damage; on the other hand, the drive circuit board 6 exposed at the heat dissipation holes 14 can directly and fully contact the airflow passing through the heat dissipation holes 14, and use the airflow to quickly remove the heat generated by the circuit board during operation, avoiding the circuit board from abnormal performance or failure due to high temperature accumulation, thereby ensuring the stability and reliability of the operation of the drive circuit board 6.

[0049] Preferably, the main body 12 of the fixed bracket 1 includes a hollow outer ring 120 and a fixed part 121 located at the center of the outer ring 120. The fixed part 121 and the outer ring 120 are connected by a plurality of spaced connecting parts 122. A heat dissipation hole 14 is formed between two adjacent connecting parts 122. The motor 2 shaft of the motor 2 is fixed on the central fixed part 121. In this configuration, from the perspective of structural strength, the plurality of spaced connecting parts 122 can evenly distribute the force between the outer ring 120 and the fixed part 121, forming a stable support structure, effectively ensuring the overall structural strength of the main body 12 of the motor 2, and avoiding the need for heat dissipation holes. The hole 14 causes insufficient local strength, ensuring that the motor 2 is not easily deformed or damaged under long-term operation or vibration environment; in terms of heat dissipation efficiency, the heat dissipation hole 14 formed between adjacent connecting parts 122 can be designed with a larger opening area while ensuring structural strength. The larger opening space can significantly reduce the resistance of airflow into the motor 2, allowing more airflow to flow smoothly into the motor 2, fully covering the core heat-generating components of the motor 2, quickly removing the heat generated during operation, achieving sufficient heat dissipation inside the motor 2, avoiding the motor 2 from being affected by high temperature accumulation or shortening its service life, thereby ensuring the stability and reliability of the motor 2 operation.

[0050] Furthermore, the connecting part 122 and the support arm 13 are preferably arranged in a one-to-one correspondence, with the axis of the connecting part 122 along its length aligned with the axis of the support arm 13 along its length. On the one hand, the connecting part 122 and the support arm 13 are both connected to the outer ring part 120, and the alignment of their axes makes the force transmission path smoother, avoiding additional stress concentration caused by misalignment. When bearing the weight of the motor 2 or operating vibration, the connecting part 122 and the support arm 13 can share the load and strengthen each other's support strength, greatly improving the overall structure's resistance to deformation and effectively compensating for the limitations of a single component support. On the other hand, this high-strength collaborative support structure can provide a more stable installation foundation for the motor 2, ensuring reliable installation and stable operation of the motor 2 from a structural perspective. Of course, the connecting part 122 and the support arm 13 do not have to be arranged in a one-to-one correspondence, as long as the main body 12 has sufficient structural strength and can meet the heat dissipation requirements.

[0051] The technical solutions protected in this application are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the scope of protection of this application. Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application are within the scope of protection claimed in this application.

Claims

1. An air fryer, comprising a motor assembly and a motor mounting base, the motor assembly including a motor and a fixed bracket fixed together, the fixed bracket further comprising shock-absorbing pads, characterized in that, The lower end of the shock-absorbing pad protrudes from the lower end of the fixed bracket, and the fixed bracket is supported on the motor mounting base by the shock-absorbing pad; The upper end of the shock-absorbing pad protrudes from the upper end of the fixed bracket, and the upper end of the shock-absorbing pad forms a first limiting groove for installing a metal pad. The fastener passes through the metal washer, the shock-absorbing pad and the fixing bracket from top to bottom, and fixes the fixing bracket to the motor mounting base.

2. An air fryer according to claim 1, characterized in that, The metal gasket has a first through hole, the shock-absorbing pad has a second through hole, and the fastener passes through the first through hole and the second through hole to be fixed to the motor mounting base. The diameter of the first through hole is smaller than the diameter of the second through hole.

3. An air fryer according to claim 1, characterized in that, The motor mounting base is provided with a fixing post that cooperates with the fastener for fixation, and the shock-absorbing pad is provided with a second through hole, the upper end of the fixing post extending into the second through hole.

4. An air fryer according to claim 3, characterized in that, The inner wall of the second through hole is provided with a protruding rib, which is interference-fitted with the fixing column.

5. An air fryer according to claim 1, characterized in that, The motor mounting base is provided with a second limiting groove, the lower end of the shock-absorbing pad is limited to the second limiting groove, and the fixing bracket abuts against the top of the side wall of the second limiting groove.

6. An air fryer according to claim 1, characterized in that, The motor mounting base is provided with a fixing post that cooperates with the fastener for fixation, and the lower end of the fixing post is suspended in the air.

7. An air fryer according to claim 1, characterized in that, The fixed bracket includes a main body and a plurality of spaced support arms extending outward from the periphery of the main body. The main body is located directly above the motor. A through heat dissipation hole is provided on the main body. The heat dissipation hole extends circumferentially along the main body and its two ends are respectively close to two adjacent support arms.

8. An air fryer according to claim 7, characterized in that, The lower end of the main body is fixed with a drive circuit board, and the upper end of the drive circuit board is exposed through at least two heat dissipation holes.

9. An air fryer according to claim 7, characterized in that, The main body includes a hollow outer ring and a fixing part located at the center of the outer ring. The fixing part and the outer ring are connected by a plurality of spaced connecting parts, and the heat dissipation hole is formed between two adjacent connecting parts.

10. An air fryer according to claim 9, characterized in that, The connecting part is provided in a one-to-one correspondence with the supporting arm, and the axis of the connecting part in the length direction is aligned with the axis of the supporting arm in the length direction.

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