CN218942989U - Air fryer - Google Patents

Abstract

The application discloses air fryer, including the culinary art chamber, locate the bowl and motor element of culinary art chamber top, bowl top forms heat dissipation chamber, bowl below forms the heating chamber, motor element includes motor main part, the rotor, thermantidote and hot-blast fan, the rotor is located the heat dissipation chamber and is overlapped and establish in the motor main part outside, the thermantidote is located the heat dissipation chamber, the hot-blast fan is located the heating chamber, the hot-blast fan upper end is equipped with the axle sleeve, the axle sleeve stretches into the heat dissipation chamber and overlaps and establish in the rotor outside, the thermantidote cover is established in the axle sleeve outside. The utility model provides an air fryer, motor element includes thermantidote and hot-blast fan, and thermantidote and hot-blast fan are all through the nested installation of rotor, compare in traditional mode of being fixed in the motor shaft with two fans, this application can cancel motor shaft structure, utilizes axle sleeve and the nested installation of rotor, can reduce motor element whole at axial size on the one hand, and on the other hand can improve the installation fastness, reduces the probability that the fan rotated the in-process and rocked, is favorable to reducing noise.

Description

Air fryer

Technical Field

The utility model relates to the field of household appliances, in particular to an air fryer.

Background

An air fryer is an appliance that utilizes high temperature air to bake food and is typically provided with a reflective cover to isolate the cooking cavity from the upper heat dissipation cavity to reduce the effects of high temperatures in the cooking cavity on the motor assembly. The motor component is installed through a specially-arranged installation structure, the installation structure is arranged above the reflecting cover, and the overall axial size formed by the motor component, the installation structure and the reflecting cover after the motor component is installed is large, so that the miniaturization of the air fryer head volume is not facilitated; in addition, the existing hot fan and cold fan are installed on the motor shaft of the motor, so that the motor shaft is large in size, the whole axial size of the motor assembly is large, and the thinning of the machine head is not facilitated.

The 202123300205.6 patent of the prior art discloses an air fryer having a main body of the drive motor at least partially within the insulating cavity of the divider, however it does not provide a reasonable means of mounting the motor. The patent number 202220388691.7 discloses a fryer, and its hot fan and thermantidote are all installed on the motor shaft of motor, have greatly increased the axial size of motor assembly, are unfavorable for the thinning of fryer aircraft nose.

Disclosure of Invention

In order to solve one or more of the technical problems of the prior art, or at least to provide an advantageous alternative, the present utility model provides an air fryer that solves the problems of large motor assembly and large head volume.

The utility model discloses an air fryer which comprises a cooking cavity, a reflecting cover and a motor assembly, wherein the reflecting cover is arranged above the cooking cavity, a heat dissipation cavity is formed above the reflecting cover, a heating cavity is formed below the reflecting cover, the motor assembly comprises a motor main body, a rotor, a cooling fan and a hot air fan, the rotor is arranged in the heat dissipation cavity and sleeved outside the motor main body, the cooling fan is arranged in the heat dissipation cavity, the hot air fan is arranged in the heating cavity, a shaft sleeve is arranged at the upper end of the hot air fan, the shaft sleeve stretches into the heat dissipation cavity and is sleeved outside the rotor, and the cooling fan is sleeved outside the shaft sleeve.

The air fryer of the utility model also has the following additional technical characteristics:

the hot fan, the shaft sleeve and the cooling fan are integrally formed, and the cooling fan and the hot air fan are respectively positioned at the upper end and the lower end of the shaft sleeve.

The air fryer also comprises a mounting piece arranged above the reflecting cover, and the upper end of the motor main body is hoisted to the mounting piece.

The air fryer also comprises a top cover arranged above the motor assembly, and the mounting piece is the top cover; or the air fryer also comprises a top cover arranged above the motor assembly, the mounting piece is arranged between the top cover and the reflecting cover, and a gap is arranged between the mounting piece and the top cover.

The cooling cavity is internally provided with a partition piece, a heat insulation cavity is arranged in the cooling cavity, the cooling fan is positioned in the heat insulation cavity, and the heat insulation cavity is provided with a vent communicated with the outside.

A heat dissipation air duct is further arranged in the heat dissipation cavity, and the heating cavity is communicated with the outside through the heat dissipation air duct; the partition piece and the heat dissipation air duct are integrated.

The heat-insulating layer is arranged above the reflecting cover, the heat-insulating layer is provided with an avoidance notch, one end of the partition piece downwards extends to penetrate through the avoidance notch and form the heat dissipation air duct, and the heat dissipation air duct is positioned below the heat-insulating cavity.

The motor assembly further comprises a circuit board, and the circuit board is installed in the motor main body or arranged in the heat dissipation cavity.

The hot air fan comprises a base body, a shaft sleeve integrally formed on the base body and a plurality of blades arranged on the base body, wherein the blades are radially distributed along the circumferential direction of the base body, mounting ribs are arranged on the inner surface of the shaft sleeve, and the mounting ribs are in interference fit with the rotor.

The motor assembly has a flat configuration.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. the utility model provides an air fryer, motor element includes thermantidote and hot-blast fan, and thermantidote and hot-blast fan are all through the nested installation of rotor, compare in traditional mode of being fixed in the motor shaft with two fans, this application can cancel motor shaft structure, utilizes axle sleeve and the nested installation of rotor, can reduce motor element whole at axial size on the one hand, and on the other hand can improve the installation fastness, reduces the probability that the fan rotated the in-process and rocked, is favorable to reducing noise. Through setting up the axle sleeve, the axle sleeve inboard realizes the cooperation of hot-blast fan and rotor, and the axle sleeve outside realizes the cooperation of thermantidote and rotor, and the installation is compact, use reliably, has guaranteed the food processing to the motor heat dissipation in the time, helps promoting motor performance, prolongs its life-span.

2. As a preferred embodiment, the hot air fan, the shaft sleeve and the cooling fan are integrally formed, and the cooling fan and the hot air fan are respectively positioned at the upper end and the lower end of the shaft sleeve; therefore, through the integral molding, the shaft sleeve and the rotor can be directly assembled, and the shaft sleeve and the rotor are installed in place in one step, so that the operation is simple and convenient.

3. As a preferred embodiment, the air fryer further comprises a mounting piece arranged above the reflecting cover, and the upper end of the motor main body is hoisted on the mounting piece; compared with the mode that the traditional motor is fixed through the installation base, the installation base can be omitted, the installation height of the motor can be reduced, the size of the machine head can be reduced, and the thinning of the machine head is promoted.

As a further preferred example of this embodiment, the air fryer further comprises a top cover disposed above the motor assembly, and the mounting member is the top cover; in the embodiment, the top cover is used as a machine body assembly structure, plays a role of sealing and protecting a motor assembly, also serves as a mounting piece for providing mounting for the motor, and can omit arranging additional mounting pieces, thereby reducing the number of accessories, simplifying assembly and promoting compact layout of the machine head.

As a further preferred example of this embodiment, the air fryer further includes a top cover disposed above the motor assembly, the mounting member is disposed between the top cover and the reflective cover, and a gap is disposed between the mounting member and the top cover; in this embodiment, the top cap is as organism package assembly, plays the effect with motor assembly seal protection, is equipped with the clearance between installed part and the top cap, can prevent that motor heat from directly transmitting to the top cap, avoids scalding user's risk.

4. As a preferred embodiment, a partition is arranged in the heat dissipation cavity, a heat insulation cavity is separated in the heat dissipation cavity by the partition, the cooling fan is positioned in the heat insulation cavity, and a vent communicated with the outside is arranged in the heat insulation cavity; through setting up the separator, it can keep apart the motor main part, and heat dissipation chamber and thermal-insulated chamber form the dual isolation to the motor, can effectively reduce the influence of ambient temperature to the motor, reduce motor main part temperature, make it keep good performance to prolong its life. And the heat insulation cavity is provided with a vent communicated with the outside, and hot air in the heat insulation cavity can exchange heat with the outside through the vent, so that the temperature in the heat insulation cavity can be further reduced, and the heat dissipation of the motor is facilitated.

As a preferred example of the present embodiment, a heat dissipation air channel is further disposed in the heat dissipation cavity, and the heating cavity is communicated with the outside through the heat dissipation air channel; through setting up the heat dissipation wind channel, reasonable heat dissipation to the heating chamber reducible to the heat radiation in heat dissipation chamber to reduce the influence to the motor.

Preferably, the partition piece and the heat dissipation air duct are integrated; thereby, the number of accessories can be reduced, the configuration can be simplified, and the compactness of the handpiece arrangement can be promoted.

As a preferred example of the present embodiment, a heat insulation layer is disposed above the reflective cover, the heat insulation layer is provided with an avoidance gap, one end of the partition member extends downward to pass through the avoidance gap and form the heat dissipation air duct, and the heat dissipation air duct is located below the heat insulation cavity; by arranging the heat insulation layer, the heat radiation of the heating cavity to the heat dissipation cavity can be further reduced, and the influence on the motor is reduced; meanwhile, the partition member is convenient to realize different functions by utilizing different partitions, namely, a heat insulation cavity is formed in the partition member above the heat insulation layer, the motor main body can be accommodated, a heat dissipation air duct is formed by penetrating through the partition member avoiding the notch, heat dissipation of the heating cavity can be realized, and the space utilization rate can be improved by reasonably planning the partition member and realizing dual purposes of one partition member, so that the miniaturization of a machine head is facilitated.

5. As a preferred embodiment, the motor assembly further comprises a circuit board, and the circuit board is mounted on the motor body or is arranged in the heat dissipation cavity; the circuit board provides circuit control of the motor assembly, and miniaturization of the motor assembly and/or the machine head can be promoted by reasonably arranging the circuit board.

6. As a preferred embodiment, the hot air fan comprises a base, a shaft sleeve integrally formed on the base, and a plurality of blades arranged on the base, wherein the blades are radially distributed along the circumferential direction of the base, the inner surface of the shaft sleeve is provided with mounting ribs, and the mounting ribs are in interference fit with the rotor; therefore, the shaft sleeve is in interference fit with the rotor, so that the shaft sleeve is convenient to assemble and disassemble and convenient to maintain.

7. As a preferred embodiment, the motor assembly has a flat configuration; the motor assembly of this application itself compares in traditional motor its trend thinning, and in addition the motor adopts the hoist and mount installation, can greatly reduce the axial size of aircraft nose, reaches the ultra-thin effect of aircraft nose.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of an air fryer in one embodiment of the present application.

FIG. 2 is a schematic diagram of an air fryer in another embodiment of the present application.

Fig. 3 is a schematic view of the structure of the separator and the insulation layer according to an embodiment of the present application.

Fig. 4 is a (exploded) structural schematic view of a motor assembly according to an embodiment of the present application.

Fig. 5 is a schematic structural view of a cooling fan, a heating fan and a shaft sleeve according to an embodiment of the present application.

Fig. 6 is a schematic diagram of motor assembly lifting in an embodiment of the present application.

Reference numerals:

10-cooking cavity, 11-reflecting cover, 110-radiating cavity, 111-heating cavity, 20-motor main body, 21-rotor, 22-cooling fan, 23-heating fan, 231-shaft sleeve, 24-circuit board, 30-top cover, 31-casing, 32-pot body, 33-casing, 34-mounting piece, 40-separating piece, 41-heat insulation cavity, 42-cover body, 43-extension part, 431-upper air duct, 432-lower air duct, 44-heat insulation layer, 441-avoidance gap.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that direct connection indicates that two connected bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 6, the application provides an air fryer, which comprises a cooking cavity 10, a reflecting cover 11 arranged above the cooking cavity 10 and a motor assembly, wherein a heat dissipation cavity 110 is formed above the reflecting cover 11, a heating cavity 111 is formed below the reflecting cover 11, the motor assembly comprises a motor main body 20, a rotor 21, a cooling fan 22 and a hot air fan 23, the rotor 21 is arranged in the heat dissipation cavity 110 and sleeved outside the motor main body 20, the cooling fan 22 is arranged in the heat dissipation cavity 110, the hot air fan 23 is arranged in the heating cavity 111, a shaft sleeve 231 is arranged at the upper end of the hot air fan 23, the shaft sleeve 231 stretches into the heat dissipation cavity 110 and is sleeved outside the rotor 21, and the cooling fan 22 is sleeved outside the shaft sleeve 231.

As shown in fig. 2 and 4, the cooking cavity 10 provides a processing space for food materials, the reflecting cover 11 partitions the heating cavity 111 and the heat dissipation cavity 110, the heating cavity 111 is provided with a heating element to provide heat required for cooking the food materials, and the heat dissipation cavity 110 isolates the motor main body 20 from the heat of the lower side to avoid serious heat generation of the motor and influence on the service life of the motor. Specifically, the inner side of the shaft sleeve 231 is in interference fit with the rotor 21, and the outer side of the shaft sleeve 231 is in interference fit with the cooling fan 22. Both the cooling fan 22 and the heating fan 23 are fixed to the rotor 21 through the shaft sleeve 231, and the cooling fan 22 and the heating fan 23 can be rotated under the rotation of the rotor 21. When the air fryer is used, food materials are placed in the cooking cavity 10, after the heating element heats air, the hot fan 23 rotates to blow hot air to the food materials in the cooking cavity 10 so as to process the food materials, the cooling fan 22 rotates to dissipate heat of the heat dissipation cavity 110, the temperature of the heat dissipation cavity 110 is reduced, and accordingly adverse effects on a motor are reduced.

The motor rotating shaft structure is eliminated, so that the overall height of the motor assembly can be greatly reduced, the internal space for accommodating the motor assembly is saved, and the thinning of the machine head is promoted.

The arrangement of the boss 231 is not limited in this application, and for example, it may be a separate piece or an integral piece with the hot air fan 23.

Preferably, the hot air fan 23, the shaft sleeve 231 and the cooling fan 22 are integrally formed, and the cooling fan 22 and the hot air fan 23 are respectively located at the upper end and the lower end of the shaft sleeve 231.

In this embodiment, as shown in fig. 5, the cooling fan 22 and the hot air fan 23 are respectively located at the upper and lower ends of the shaft sleeve 231, and the shaft sleeve 231 is installed in an interference fit with the rotor 21, so that the operation steps can be omitted. The respective blades of the cooling fan 22 and the hot air fan 23 are not interfered due to the separation of the shaft sleeve 231, and the working reliability of the cooling fan 22 and the hot air fan 23 is ensured.

Further, with respect to the installation of the motor assembly, the present application employs a hoist installation. The air fryer also comprises a mounting piece arranged above the reflecting cover 11, and the upper end of the motor main body 20 is hoisted on the mounting piece.

The motor assembly of this application is hoisted through the installed part, compares in the scheme that the fixed motor of traditional use installation base, is favorable to reducing motor assembly overall installation height to make the air fryer aircraft nose attenuation. The form of the mounting member is not particularly limited in this application, and for example, any of the following modes may be adopted.

Embodiment one:

the air fryer also includes a top cover 30 disposed over the motor assembly, and the mounting member is the top cover 30.

In some embodiments, as shown in fig. 1, the air fryer includes a casing 31, a pot body 32 disposed in the casing 31, and a top cover 30 assembled with an upper end cap of the casing 31, a cooking cavity 10 is formed in the pot body 32, the top cover 30 forms a machine head, a motor assembly is disposed in the machine head, specifically, the top cover 30 may include a top wall and a surrounding portion surrounding the top wall to define a mounting cavity, and an upper end of the motor main body 20 is lifted inside the top wall.

In other embodiments, as shown in fig. 2, a housing 33 defining the motor assembly therein is provided above the cooking chamber 10, and the top cover 30 is detachably mounted on top of the housing 33. In this embodiment, the top cover 30 is a simple end cover structure, which serves as a top closing function, and also serves as a hanging structure in which the upper end of the motor main body 20 is hung inside the top cover 30.

Specifically, the motor main body 20 may be hung on the top cover 30 by bolts/screws, and further, in order to reduce motor vibration, a shock absorbing member may be disposed between the motor main body 20 and the top cover 30 to absorb shock and reduce noise.

In this embodiment, the top cover 30 is used as a mounting member, and the provision of additional mounting members can be omitted, so that the number of parts can be reduced, the assembly can be simplified, and the compact layout of the handpiece can be promoted.

Embodiment two:

the air fryer also comprises a top cover 30 arranged above the motor assembly, the mounting piece 34 is arranged between the top cover 30 and the reflecting cover 11, and a gap is arranged between the mounting piece 34 and the top cover 30.

As shown in fig. 2 and 6, a housing 33 defining a motor assembly therein is provided above the cooking chamber 10, and a top cover 30 is detachably mounted on top of the housing 33. A mounting member 34 is provided within the housing 33 to provide mounting for the motor. The arrangement of the mounting member 34 is not limited in this application, and for example, it may be fixed to the top of the reflecting cover 11, and the upper end of the motor main body 20 is lifted inside the top of the mounting member 34. Further, a gap is provided between the mounting member 34 and the top cover 30, so that heat of the motor can be prevented from being directly transferred to the top cover 30, and thus, a user can be prevented from being scalded when accidentally touching the top cover 30.

Specifically, the motor body 20 may be hung on the mounting member 34 by bolts/screws, and further, in order to reduce motor vibration, a shock absorbing member may be provided between the motor body 20 and the mounting member 34 to absorb shock and reduce noise.

It will be appreciated that in other embodiments, no gap may be provided between the mounting member 34 and the top cover 30, for example, the mounting member 34 may be secured to the top cover 30.

In addition to the first and second embodiments, the air fryer of the present application has the following structure.

As a preferred embodiment, the heat dissipation chamber 110 is provided with a partition member 40, the partition member 40 partitions a heat insulation chamber 41 in the heat dissipation chamber 110, the cooling fan 22 is located in the heat insulation chamber 41, and the heat insulation chamber 41 is provided with a ventilation opening communicating with the outside.

As shown in fig. 3, by providing the partition member 40, which can isolate the motor main body 20, the heat dissipation chamber 110 and the heat insulation chamber 41 form double isolation to the motor, the influence of the ambient temperature on the motor can be effectively reduced, the temperature of the motor main body is reduced, the motor main body can maintain good performance, and the service life of the motor main body is prolonged. And, the thermal insulation cavity 41 is provided with a vent communicated with the outside, and the hot air in the thermal insulation cavity 41 can exchange heat with the outside through the vent, so that the temperature in the thermal insulation cavity 41 can be further reduced, and the heat dissipation of the motor is facilitated.

On the basis of the first embodiment, the top cover 30 may be used to close the top opening of the partition member 40, i.e., the top cover 30 serves as the top wall of the heat insulation chamber 41, and the partition member 40 and the top cover 30 together enclose the heat insulation chamber 41. Therefore, the top cover 30 also serves as the top wall of the heat insulation cavity 41 while meeting the requirement of complete machine assembly, so that materials can be saved, and the heat insulation effect of the heat insulation cavity 41 is ensured.

On the basis of the second embodiment, the mounting member 34 may be used to close the top opening of the partition member 40, that is, the mounting member 34 serves as the top wall of the heat insulation chamber 41, and the partition member 40 and the mounting member 34 enclose the heat insulation chamber 41 together. Thus, the mounting member 34 serves as the top wall of the heat insulation chamber 41 while satisfying motor mounting, and can save materials and ensure the heat insulation effect of the heat insulation chamber 41.

Further, a heat dissipation air channel is further disposed in the heat dissipation cavity 110, and the heating cavity 111 is communicated with the outside through the heat dissipation air channel. By providing a heat dissipation air duct, reasonable heat dissipation to the heating chamber 111 can reduce heat radiation to the heat dissipation chamber 110, thereby reducing the influence on the motor.

Preferably, the partition 40 is integrated with the heat dissipation duct.

As shown in fig. 3, the partition 40 includes a cover 42 and an extension 43, the cover 42 wraps the motor main body 20, one side of the cover 42 extends outwards to form an open extension 43, and a heat dissipation air duct is formed inside the extension 43. Preferably, the extension 43 has a large thickness, and an upper duct 431 and a lower duct 432 are formed inside the extension, the upper duct 431 serving as a heat dissipation duct of the heat insulation chamber 41 (formed inside the cover 42), and the lower duct 432 serving as a heat dissipation duct of the heating chamber 111. The communication port of the heat insulation cavity 41 may be provided on the side wall of the cover 42, or may be provided on the extension portion 43 corresponding to the upper air duct 431. The heating cavity 111 is communicated with the outside through the lower air duct 432, so that reasonable heat dissipation of the heating cavity 111 is realized.

In some embodiments, a heat insulating layer 44 is disposed above the reflective cover 11, the heat insulating layer 44 is provided with a avoidance gap 441, and one end of the partition 40 extends downward through the avoidance gap 441 and forms the heat dissipation air duct, and the heat dissipation air duct is located below the heat insulating cavity 41.

By arranging the heat insulation layer 44, the heat radiation of the heating cavity 111 to the heat dissipation cavity 110 can be further reduced, and the influence on the motor is reduced; meanwhile, the partition 40 can conveniently realize different functions by utilizing different partitions, namely, the partition 40 above the heat insulation layer 44 is internally provided with the heat insulation cavity 41, the motor main body 20 can be accommodated, the partition 40 passing through the avoidance gap 441 forms a heat dissipation air channel, the heat dissipation of the heating cavity 111 can be realized, the space utilization rate can be improved by reasonably planning the partition 40 and realizing one piece of dual-purpose, and the miniaturization of the machine head is facilitated.

As shown in fig. 3, the partition member 40 includes a cover 42 and an extension portion 43, the inner side of the extension portion 43 includes an upper air duct 431 and a lower air duct 432, wherein the upper air duct 431 can optimize heat insulation and heat dissipation of the motor main body 20, the lower air duct 432 is located below the avoidance gap 441 to form a heat dissipation air duct of the heating cavity 111, and the partition member 40 integrally forms a volute structure, thereby insulating heat of the motor and simultaneously serving as an air duct structure.

As a preferred embodiment, the motor assembly further includes a circuit board 24 to provide electrical connections, circuit control, etc. for the motor assembly.

The arrangement of the circuit board 24 is not particularly limited, and for example, the circuit board 24 can be mounted on the motor main body 20 or independently mounted on the outer side of the motor assembly, and when the circuit board 24 is independently mounted on the outer side of the motor assembly, the circuit board is beneficial to further reducing the volume of the motor assembly and promoting the miniaturization of the motor assembly.

In the scheme that the circuit board 24 is independently installed outside the motor assembly, the circuit board 24 can be arranged in the heat dissipation cavity 110, so that heat radiation caused by lower heat can be reduced, and adverse effects on the circuit board 24 are reduced.

As a preferred embodiment, the hot air fan 23 includes a base, a shaft sleeve 231 integrally formed on the base, and a plurality of blades disposed on the base, where a plurality of the blades are radially arranged along the circumference of the base, and a mounting rib is disposed on an inner surface of the shaft sleeve 231 and is in interference fit with the rotor 21.

The axle sleeve 231 integrated into one piece has guaranteed the installation strength of hot-blast fan 23 on the pedestal to utilize installation muscle and rotor 21 interference fit, it is convenient to install, and the structure is firm reliable.

Preferably, the heat fan 23 is a centrifugal fan, which is axially air-fed and laterally air-fed.

Preferably, the cooling fan 22 is a backward bending centrifugal fan, so that the power consumption can be reduced, the noise can be reduced, and the user experience can be improved on the premise of ensuring the air outlet intensity.

The structure of the cooling fan 22 is similar to that of the heating fan 23, for example, the cooling fan 22 includes a base and a plurality of blades disposed on the base, the plurality of blades are radially arranged along the circumferential direction of the base, a fixing ring is disposed in the middle of the base, and the fixing ring is in interference fit with the outer surface of the shaft sleeve 231. Further, ribs and/or grooves may be provided between the retainer ring and the outer surface of the sleeve 231 to enhance the interference fit.

The motor component is flat in whole, and is favorable for thinning the machine head. And the machine head can be further thinned by optimizing the installation mode of the motor assembly, so that the use scene of the air fryer is expanded.

The technical solution protected by the present utility model is not limited to the above embodiments, and it should be noted that, the combination of the technical solution of any one embodiment with the technical solution of the other embodiment or embodiments is within the scope of the present utility model. While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. An air fryer comprises a cooking cavity, a reflecting cover arranged above the cooking cavity and a motor component, wherein a heat dissipation cavity is formed above the reflecting cover, a heating cavity is formed below the reflecting cover,

the motor assembly comprises a motor main body, a rotor, a cooling fan and a hot air fan, wherein the rotor is arranged in the heat dissipation cavity and sleeved on the outer side of the motor main body, the cooling fan is arranged in the heat dissipation cavity, the hot air fan is arranged in the heating cavity, a shaft sleeve is arranged at the upper end of the hot air fan, the shaft sleeve stretches into the heat dissipation cavity and is sleeved on the outer side of the rotor, and the cooling fan is sleeved on the outer side of the shaft sleeve.

2. An air fryer according to claim 1, wherein,

the hot fan, the shaft sleeve and the cooling fan are integrally formed, and the cooling fan and the hot air fan are respectively positioned at the upper end and the lower end of the shaft sleeve.

3. An air fryer according to claim 1, wherein,

the air fryer also comprises a mounting piece arranged above the reflecting cover, and the upper end of the motor main body is hoisted to the mounting piece.

4. An air fryer according to claim 3, wherein,

the air fryer also comprises a top cover arranged above the motor assembly, and the mounting piece is the top cover; or alternatively

The air fryer also comprises a top cover arranged above the motor assembly, the mounting piece is arranged between the top cover and the reflecting cover, and a gap is arranged between the mounting piece and the top cover.

5. An air fryer according to any one of claims 1-4, wherein,

the cooling cavity is internally provided with a partition piece, a heat insulation cavity is arranged in the cooling cavity, the cooling fan is positioned in the heat insulation cavity, and the heat insulation cavity is provided with a vent communicated with the outside.

6. An air fryer according to claim 5, wherein,

a heat dissipation air duct is further arranged in the heat dissipation cavity, and the heating cavity is communicated with the outside through the heat dissipation air duct;

the partition piece and the heat dissipation air duct are integrated.

7. An air fryer according to claim 5, wherein,

the heat-insulating layer is arranged above the reflecting cover, the heat-insulating layer is provided with an avoidance notch, one end of the partition piece downwards extends to penetrate through the avoidance notch and form the heat dissipation air duct, and the heat dissipation air duct is positioned below the heat-insulating cavity.

8. An air fryer according to any one of claims 1-4, wherein,

the motor assembly further comprises a circuit board, and the circuit board is installed in the motor main body or arranged in the heat dissipation cavity.

9. An air fryer according to any one of claims 1-4, wherein,

the hot air fan comprises a base body, a shaft sleeve integrally formed on the base body and a plurality of blades arranged on the base body, wherein the blades are radially distributed along the circumferential direction of the base body, mounting ribs are arranged on the inner surface of the shaft sleeve, and the mounting ribs are in interference fit with the rotor.

10. An air fryer according to any one of claims 1-4, wherein,

the motor assembly has a flat configuration.

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