Food baking appliance easy to clean

Abstract

The utility model discloses an easy-to-clean food baking appliance which comprises a machine shell, a heating cavity and a fan assembly arranged outside the heating cavity are arranged in the machine shell, and the fan assembly is communicated with the heating cavity so that gas in the heating cavity can flow circularly. One of the side wall of the heating cavity and the fan assembly is provided with an inserting column, the other one of the side wall of the heating cavity and the fan assembly is provided with an inserting groove, and the inserting column is connected with the inserting groove in an inserting mode so that the fan assembly can be detachably connected to the heating cavity. According to the food baking appliance, the whole fan assembly can be detached from the heating cavity, and components of the fan assembly can be conveniently cleaned or maintained, so that normal use of the machine is guaranteed; under the condition that the inserting columns are matched with the inserting grooves in an inserting mode, when a user disassembles the fan assembly, the user only needs to pull the fan assembly outwards with force, rotation and other actions are not needed, operation is easy, the difficulty is low, and the use experience of the user can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to food heater field, concretely relates to an easy-to-clean food roasting appliance. BACKGROUND

[0002] The air fryer is a cooking appliance that uses hot air to replace hot oil for air frying food, and when the air fryer is used to cook food containing oil, oil gas volatilized from the food will condense on the fan to form oil stains when the air temperature reaches and exceeds the corresponding oil evaporation point. If the oil stains on the fan are not cleaned in time, the machine will have a strong odor, which will affect the health of the user.

[0003] In order to improve the convenience of fan cleaning, the existing patent CN202322423834.0 discloses an air fryer, in which the fan and the motor are detachably connected, and the fan can be detached for cleaning, thereby reducing the cleaning difficulty and providing convenience for the user.

[0004] It can be understood that the above-mentioned household air fryer can only realize the cleaning or maintenance of the single fan component, as only the fan can be detached. However, in actual use, in addition to considering the disassembly and cleaning of the fan, the maintenance of the motor and other parts of the fan assembly also needs to be considered, so that the entire fan assembly can be easily disassembled and maintained when these parts malfunction. SUMMARY

[0005] The utility model provides a kind of easy-to-clean food roasting appliance, to solve the technical problem that only fan of existing air fryer can be disassembled, and other structures related to fan are inconvenient to maintain.

[0006] The utility model discloses a kind of easy-to-clean food roasting appliance, including shell, heating cavity and fan assembly arranged in heating cavity exterior are equipped in the shell, the fan assembly is communicated with the heating cavity, to make the circulation of gas in heating cavity, one of the side wall of the heating cavity and the fan assembly is equipped with insertion post, another is equipped with insertion slot, the insertion post is connected with the insertion slot insertion to connect the fan assembly detachably in the heating cavity.

[0007] The utility model discloses a kind of easy-to-clean food roasting appliance, still have following additional technical features:

[0008] The end of the insertion post is equipped with annular clamping groove, clamping spring is equipped in the insertion slot, the clamping spring has at least one group of opposite and inward protruding protruding portion, the protruding portion is clamped with the clamping groove to limit the movement of fan assembly along the axis of insertion post.

[0009] The side wall of the clamping groove is equipped with guide inclined plane, for guiding the protruding portion slide into and slide out the clamping groove.

[0010] The clamping spring is a half-enclosed elastic member with one side open.

[0011] The end of the insertion column is provided with a first magnetic member, and the bottom of the insertion slot is provided with a second magnetic member, the first magnetic member and the second magnetic member are magnetically attracted to limit the movement of the fan assembly along the axis of the insertion column.

[0012] The outer wall of the heating cavity is provided with a first shell, the peripheral wall of the first shell is provided with the insertion column, the fan assembly comprises a second shell matched with the first shell, the peripheral wall of the second shell is provided with the insertion slot, and the first shell and the second shell are in abutment to form a containing cavity containing the hot air fan.

[0013] The insertion column is provided with at least four along the circumference of the first shell, and the insertion slot is provided one by one corresponding to the insertion column.

[0014] The machine shell comprises a main shell body surrounding the heating cavity, a door body rotatably connected to the front side of the main shell body, and a rear cover body detachably installed on the rear side of the main shell body, and the fan assembly is arranged between the heating cavity and the rear cover body.

[0015] The machine shell is provided with an exhaust air duct located outside the heating cavity and an exhaust pipe communicating the heating cavity with the exhaust air duct, the fan assembly comprises a heat dissipation cavity, a motor arranged in the heat dissipation cavity and a heat dissipation fan driven by the motor, and the exhaust end of the heat dissipation cavity is in flexible abutment with the end of the exhaust air duct.

[0016] The exhaust end of the heat dissipation cavity and the end of the exhaust air duct are both provided with a sealing ring, and the peripheral wall of the sealing ring is provided with a plurality of spaced sealing ribs.

[0017] Due to the above technical scheme, the utility model has the following beneficial effects:

[0018] 1. The easy-to-clean food roasting appliance of the utility model can be detached from the heating cavity, so that the constituent parts of the fan assembly can be conveniently cleaned or maintained to ensure normal use of the machine. In the case of insertion and cooperation of the insertion column and the insertion slot, the user only needs to pull outward when detaching the fan assembly, without the need for rotation or other actions, so that the operation is simple and low in difficulty, and the user experience can be improved.

[0019] 2. To achieve the axial limit of the fan assembly along the plug-in column, prevent the plug-in column from being pulled out of the plug-in slot and affect the installation stability of the fan assembly, the end of the plug-in column is provided with an annular clamping groove, the plug-in slot is provided with a clamping spring, the clamping spring has at least one set of opposite and inward protruding protrusions, the protrusions are clamped with the clamping groove to limit the movement of the fan assembly along the axial direction of the plug-in column, through the clamping of the clamping spring and the clamping groove, the fan assembly can be fixed, which can prevent accidents caused by the falling of the fan assembly during use, and improve the reliability of installation and use.

[0020] Further, in order to reduce the difficulty of disassembly and improve the disassembly efficiency, the side wall of the clamping groove is provided with a guide slope for guiding the protrusions to slide into and out of the clamping groove. When the user disassembles the fan assembly, the protrusions can easily slide out of the clamping groove along the guide slope, which can make the disassembly more smooth and labor-saving. Similarly, when installing the fan assembly, the protrusions can easily slide into the clamping groove along the guide slope, which is beneficial to improve the installation efficiency.

[0021] During the plugging process of the fan assembly, the plug-in slot will extrude and deform the clamping spring. In order to facilitate the deformation of the clamping spring and make the clamping spring more easily clamped with the clamping groove or more easily pulled out of the clamping groove, the clamping spring is a semi-closed elastic member with one side opening. Based on the existence of the opening, the two ends of the clamping spring can quickly approach or move away after being stressed, which is beneficial to the rapid deformation of the clamping spring and improves the assembly and disassembly efficiency.

[0022] 3. To achieve the axial limit of the fan assembly along the plug-in column, prevent the plug-in column from being pulled out of the plug-in slot and affect the installation stability of the fan assembly, the end of the plug-in column is provided with a first magnetic member, the bottom of the plug-in slot is provided with a second magnetic member, the first magnetic member and the second magnetic member are magnetically attracted and matched to limit the movement of the fan assembly along the axial direction of the plug-in column. Under the mode of magnetic attraction and matching, the fan assembly is relatively smooth during installation and disassembly, without additional actions, and the assembly and disassembly efficiency is higher.

[0023] 4. To facilitate the compact arrangement of the structure, the outer wall of the heating cavity is provided with a first shell, the peripheral wall of the first shell is provided with the plug-in column, the fan assembly comprises a second shell matched with the first shell, the peripheral wall of the second shell is provided with the plug-in slot, and the first shell and the second shell are butted and enclosed to form a containing cavity containing the hot air fan of the fan assembly. Since the first shell and the second shell cooperate to form the containing cavity, the fan assembly can prevent the hot air fan from being separately provided with a larger shell to cause the volume to be too large and the weight to be too heavy, which is beneficial to the miniaturization of the fan assembly and reduces the weight, saves the user's effort during disassembly, and improves the user experience. Further, the first shell and the second shell provide a layout space for the installation structure between the fan assembly and the heating cavity, which can facilitate the compact arrangement of the structure and promote the miniaturization of the whole machine.

[0024] Further, in order to strengthen the firmness of the fan assembly, at least four of the insertion columns are arranged along the circumference of the first shell, and the insertion slots are arranged one by one corresponding to the insertion columns, and in the case that there are no less than four insertion sites, the fan assembly will not fall off during use due to the vibration of the motor, and the installation reliability can be improved.

[0025] 5. When the fan assembly is arranged at the rear side of the heating cavity, the arrangement of the door body at the front side of the heating cavity is not affected, so that the user can operate the door body to take and place food, and a larger distance is formed between the user and the fan assembly when the user faces the door body, so that the noise reaching the user's ear is reduced, and the user's mood is improved; on this basis, the shell is provided with a detachable rear cover body, and the fan assembly is arranged between the heating cavity and the rear cover body, when the fan assembly needs to be disassembled, the rear cover body is disassembled first, although the disassembly steps are increased, the operation is simple, the overall disassembly process is not affected, and the rear cover body is beneficial to dustproof and waterproof of the fan assembly, and can also block noise, reduce the noise transmitted to the ear, and improve the user's experience.

[0026] 6. During the working process of the heating cavity, a part of hot steam is discharged to accelerate the evaporation of water in the food and the ripening of the food, and to avoid excessive internal pressure of the heating cavity, in order to reduce the exhaust temperature and prevent high-temperature steam from scalding the user, the fan assembly comprises a heat dissipation cavity, a motor arranged in the heat dissipation cavity, and a heat dissipation fan driven by the motor, in addition to meeting the heat dissipation demand of the motor, the heat dissipation cavity is connected with the exhaust air duct, and when the high-temperature steam in the heating cavity is discharged into the exhaust air duct, the cold air flowing into the heat dissipation cavity from the outside enters the exhaust air duct, mixes with the high-temperature steam, and is then discharged, so that the temperature of the exhaust airflow can be effectively reduced, thereby preventing scalding. On this basis, the outlet end of the heat dissipation cavity and the end of the exhaust air duct are flexibly connected, which can simplify the installation structure and assembly process, and can also realize sealing of the connection position, so as to prevent air leakage at the connection position and affect the exhaust reliability.

[0027] Further, the outlet end of the heat dissipation cavity and the end of the exhaust air duct are both provided with sealing rings, a plurality of spaced sealing ribs are arranged on the peripheral wall of the sealing ring, the two sealing rings are interference-fitted, which is convenient for installation and realizes sealing, and the plurality of sealing ribs are beneficial to increasing the friction between the two sealing rings, strengthening the tight-fitting effect, improving the sealing effect, in addition, the arrangement of the sealing ribs is beneficial to forming a concave-convex path in the area where the two sealing rings are connected, which can further reduce the air leakage probability, thereby ensuring the exhaust efficiency and exhaust temperature. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 This is a cross-sectional schematic diagram of a food baking appliance according to one embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the structure of the plug-in post with a slot according to one embodiment of this application.

[0031] Figure 3 This is a schematic diagram of a snap ring installed in the insertion slot according to one embodiment of this application.

[0032] Figure 4 This is a schematic diagram showing the fan assembly being fixed and positioned on the heating chamber according to one embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the snap ring according to one embodiment of this application.

[0034] Figure 6 This is a schematic diagram of the structure of the plug post with a first magnetic element according to one embodiment of this application.

[0035] Figure 7 This is a schematic diagram of the structure of a second magnetic element provided in the insertion slot according to one embodiment of this application.

[0036] Figure 8 This is a schematic diagram showing the fan assembly being fixed to the heating chamber in another embodiment of this application.

[0037] Figure 9 This is an exploded structural diagram of the heating chamber and fan assembly according to one embodiment of this application.

[0038] Figure 10 for Figure 9 A schematic diagram of the structure of the wind turbine components.

[0039] Figure label:

[0040] 10. Housing; 101. Door; 102. Rear cover; 11. Heating chamber; 111. First housing; 12. Fan assembly; 121. Motor; 122. Hot air fan; 123. Cooling fan; 124. Second housing; 13. Insertion post; 131. Slot; 132. Guide slope; 14. Insertion groove; 15. Snap ring; 151. Protrusion; 152. Opening; 16. First magnetic component; 17. Second magnetic component; 18. Exhaust duct; 19. Exhaust pipe; 20. Cooling chamber; 21. Sealing ring; 211. Sealing rib. Detailed Implementation

[0041] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0042] In order to enable the above objects, features and advantages of the present application to be clearer, a further detailed description will be made to the present application with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0044] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0045] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0046] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. However, it is noted that direct connection means that the connection between the two main bodies does not form a connection relationship through the transition structure, but only connects through the connection structure to form a whole. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] As shown in Figures 1 to 10 The present application provides an easy-to-clean food roasting appliance, which comprises a shell 10, a heating cavity 11 and a fan assembly 12 arranged outside the heating cavity 11 are arranged in the shell 10, the fan assembly 12 is communicated with the heating cavity 11, so that the gas in the heating cavity 11 circulates and flows, specifically, the fan assembly 12 inhales the gas flowing out of the heating cavity 11 into the hot air duct, the gas flows along the hot air duct and is heated by the heating element, and then flows into the heating cavity 11 to cook the food, so as to realize the circulation of the gas. The fan assembly 12, for example, comprises a motor 121, a hot air fan 122 and a cooling fan 123 connected with the output shaft of the motor 121, in order to realize the easy cleaning or maintenance of the composition structure of the fan assembly 12, the present application provides a detachable mode of the fan assembly 12, so as to detach the fan assembly 12 when needed, and provide cleaning or maintenance convenience.

[0049] Specifically, one of the side wall of the heating cavity 11 and the fan assembly 12 is provided with a plug-in column 13, and the other is provided with a plug-in slot 14, the plug-in column 13 and the plug-in slot 14 are plug-in connected to detachably connect the fan assembly 12 to the heating cavity 11. The easy-to-clean food roasting appliance of the present application can be detached from the heating cavity 11, and the constituent parts of the fan assembly 12 can be easily cleaned or maintained to ensure the normal use of the machine. In the plug-in cooperation of the plug-in column 13 and the plug-in slot 14, when the user detaches the fan assembly 12, only needs to pull outwardly, without rotating or other actions, the operation is simple and low in difficulty, and the user experience can be improved.

[0050] It can be understood that when the plug-in column 13 is inserted into the plug-in slot 14, the fan assembly 12 is limited in freedom degree except the axis direction of the plug-in column 13, and since the fan assembly 12 will vibrate during working, in order to prevent the fan assembly 12 from falling off from the heating cavity 11, the freedom degree of the fan assembly 12 along the axis direction of the plug-in column 13 needs to be further limited to ensure the stable working of the fan assembly 12.

[0051] On the basis of the structure and cooperation of the plug-in column 13 and the plug-in groove 14, the cooperation structure is additionally arranged between the two to realize the fixation of the fan assembly 12, which is conducive to the compact arrangement of the structure to avoid the increase of the structural volume, and can realize the limiting during the plug-in process, without increasing the additional steps, and can save the operation amount of the user and improve the user experience.

[0052] As a preferred embodiment, the end of the plug-in column 13 is provided with an annular clamping groove 131, and the plug-in groove 14 is provided with a clamping spring 15, the clamping spring 15 has at least one set of opposite and inwardly protruding protruding portions 151, and the protruding portions 151 are clamped with the clamping groove 131 to limit the movement of the fan assembly 12 along the axial direction of the plug-in column 13.

[0053] As shown in Figures 2 to 4 , by clamping the clamping spring 15 with the clamping groove 131, the fan assembly 12 is fixed, which can prevent the fan assembly 12 from falling off during use to cause accidents and improve the reliability of installation and use. Specifically, the clamping spring 15 is in a closed or semi-closed structure, longitudinally arranged in the plug-in groove 14, and partially fitted to the inner wall of the plug-in groove 14. During the plug-in process of the plug-in column 13, when the protruding portions 151 are clamped into the clamping groove 131, the fan assembly 12 is installed in place, and at this time, the fan assembly 12 cannot move forward and backward, and can be stably maintained during work. Only when the fan assembly 12 is pulled outward with force can it be removed.

[0054] As shown in Figure 2 , Figure 3 and Figure 5 , the bottom diameter of the clamping groove 131 is D1, the groove width is L1, the clamping spring 15 is made of steel wire and shaped by bending, the wire diameter is L2, and the radial dimension between the protruding portions 151 is D2. By setting D1≥D2 and L1≥L2, the clamping spring 15 and the clamping groove 131 can be tightly fitted to ensure the limiting effect.

[0055] In one embodiment, the side wall of the clamping groove 131 is provided with a guide slope 132 for guiding the protruding portions 151 to slide into and out of the clamping groove 131.

[0056] By setting the guide slope 132, when the user disassembles the fan assembly 12, the protruding portions 151 easily slide out of the clamping groove 131 along the guide slope 132, which makes the disassembly smoother and more labor-saving. Similarly, when the fan assembly 12 is installed, the protruding portions 151 easily slide into the clamping groove 131 along the guide slope 132, which is conducive to improving the installation efficiency. As shown in Figure 2 , the guide slope 132 is arranged on the side wall of the clamping groove 131 close to the end of the plug-in column 13, so that when the fan assembly 12 is installed, the protruding portions 151 move along the guide slope 132 first to slide into the clamping groove 131, and when the fan assembly 12 is disassembled, the protruding portions 151 slide out of the clamping groove 131 along the guide slope 132 in the disassembly direction, which can ensure smooth assembly and disassembly.

[0057] In one embodiment, as shown in Figure 5 The clamping spring 15 is a half-enclosed elastic member with one side opening 152.

[0058] During the plugging process, the plug-in slot 14 will squeeze and deform the clamping spring 15. In order to facilitate the deformation of the clamping spring 15, the clamping spring 15 is provided with an opening 152. Based on the existence of the opening 152, the two ends of the clamping spring 15 can quickly approach or move away after being stressed, thus facilitating the rapid deformation of the clamping spring 15 and improving the assembly and disassembly efficiency. In addition, the clamping spring 15 is easy to deform, which is conducive to its installation into the plug-in slot 14, and can reduce the assembly difficulty.

[0059] As a preferred embodiment, the end of the plug-in column 13 is provided with a first magnetic member 16, and the bottom of the plug-in slot 14 is provided with a second magnetic member 17. The first magnetic member 16 and the second magnetic member 17 are magnetically attracted to each other to limit the axial movement of the fan assembly 12 along the plug-in column 13.

[0060] Under the magnetic attraction mode, the fan assembly 12 is relatively smooth during installation and disassembly, and does not involve additional actions, so the assembly and disassembly efficiency is relatively high. As shown in Figures 6 to 8 During the process of inserting the plug-in column 13 into the plug-in slot 14, the first magnetic member 16 and the second magnetic member 17 can provide plug-in assistance by attracting each other, which can make the installation smoother. When disassembling the fan assembly 12, the first magnetic member 16 and the second magnetic member 17 can be separated by pulling the fan assembly 12, achieving rapid disassembly.

[0061] As a preferred embodiment, the outer wall of the heating cavity 11 is provided with a first shell 111, the peripheral wall of the first shell 111 is provided with a plug-in column 13, and the fan assembly 12 includes a second shell 124 matched with the first shell 111. The peripheral wall of the second shell 124 is provided with a plug-in slot 14, and the first shell 111 and the second shell 124 are in abutment to form a containing cavity containing the hot air fan 122 of the fan assembly 12.

[0062] As shown in Figure 9 Since the first shell 111 and the second shell 124 cooperate to form a containing cavity, it can prevent the fan assembly 12 from being provided with a larger shell to contain the hot air fan 122, which leads to a large volume and a heavy weight. That is, it is conducive to the miniaturization of the fan assembly 12 and the reduction of its weight, so as to save the user's effort during disassembly and improve the user experience. Further, the first shell 111 and the second shell 124 provide a layout space for the installation structure between the fan assembly 12 and the heating cavity 11, which can promote the compact arrangement of the structure and promote the miniaturization of the whole machine. The upper end of the containing cavity is in communication with the hot air duct, so that the hot air fan 122 can suck air into the hot air duct to realize the circulation of the gas.

[0063] In one embodiment, as shown in Figure 9 The number of the plug-in slots 14 is the same as that of the plug-in columns 13, and the plug-in slots 14 are arranged one by one corresponding to the plug-in columns 13. In the case that the number of the plug-in sites is not less than four, the fan assembly 12 will not fall off in the process of use due to the vibration of the motor 121, and the installation reliability can be improved.

[0064] In the case that the plug-in columns 13 and the plug-in slots 14 are arranged, in order to ensure that the disassembly rate of each matching site is consistent when the fan assembly 12 is disassembled, so that the second shell 124 is smoothly disassembled, the limiting structure (the combination of the clamping slot 131 and the clamping spring 15 or the combination of the magnetic member) between the plurality of plug-in columns 13 and the plug-in slots 14 adopts the same structure to improve the disassembly effect.

[0065] As a preferred embodiment, the cabinet 10 includes a main shell surrounding the heating cavity 11, a door body 101 rotatably connected to the front side of the main shell, and a rear cover body 102 detachably installed on the rear side of the main shell, and the fan assembly 12 is arranged between the heating cavity 11 and the rear cover body 102.

[0066] As shown in Figure 1 The fan assembly 12 is arranged at the rear side of the heating cavity 11, which does not affect the arrangement of the door body 101 at the front side of the heating cavity 11. The user can take and place food by operating the door body 101, which is convenient. When the user faces the door body 101, a large distance is formed between the user and the fan assembly 12, which can reduce the noise reaching the user's ear and make the user happy. On this basis, by arranging the detachable rear cover body 102, the fan assembly 12 is arranged between the heating cavity 11 and the rear cover body 102. When the fan assembly 12 needs to be disassembled, the rear cover body 102 is disassembled first. The rear cover body 102 is beneficial to dustproof and waterproof of the fan assembly 12, and can also block noise and reduce the noise transmitted to the ear, which can improve the user's experience.

[0067] As a preferred embodiment, the cabinet 10 is provided with an exhaust air duct 18 located outside the heating cavity 11 and an exhaust pipe 19 communicating the heating cavity 11 with the exhaust air duct 18. The fan assembly 12 includes a heat dissipation cavity 20, a motor 121 arranged in the heat dissipation cavity 20, and a heat dissipation fan 123 driven by the motor 121. The outlet end of the heat dissipation cavity 20 is flexibly connected to the end of the exhaust air duct 18.

[0068] Since the heating cavity 11 needs to exhaust to adjust the internal pressure as the internal temperature rises and the pressure increases during the working process, if the hot air in the heating cavity 11 is directly discharged through the machine shell 10, the temperature of the machine shell 10 will inevitably be too high. In order to solve the problem of too high temperature at the exhaust position of the machine shell 10, the hot air flowing out of the heating cavity 11 is mixed with a part of the external cold air in the exhaust air duct 18 before being discharged out of the machine shell 10, which can effectively reduce the temperature of the air reaching the air outlet of the machine shell 10, thereby avoiding the local temperature of the machine shell 10 being too high. Moreover, the high-temperature steam in the heating cavity 11 is mixed with the cold air flowing into the heat dissipation cavity 20 before being discharged, which can effectively reduce the temperature of the discharged air flow and prevent burns from occurring.

[0069] On this basis, the air outlet end of the heat dissipation cavity 20 and the end of the exhaust air duct 18 are flexibly connected, which can simplify the installation structure and assembly process, and also realize sealing at the connection position to prevent air leakage at the connection position and affect the reliability of the exhaust.

[0070] In one embodiment, the air outlet end of the heat dissipation cavity 20 and the end of the exhaust air duct 18 are both provided with a sealing ring 21, and a plurality of spaced sealing ribs 211 are arranged on the peripheral wall of the sealing ring 21.

[0071] As shown in Figure 9 and Figure 10 , the two sealing rings 21 are interference fitted, which is convenient for installation and also realizes sealing. Moreover, the structure of the plurality of sealing ribs 211 is beneficial to increasing the friction between the two sealing rings 21, strengthening the tight fitting effect, and improving the sealing effect. In addition, the arrangement of the sealing ribs 211 is beneficial to forming a rough path at the connection area of the two sealing rings 21, which can further reduce the air leakage probability, thereby ensuring the exhaust efficiency and exhaust temperature.

[0072] Specifically, the two sealing rings 21 are a first sealing ring and a second sealing ring. Taking the installation of the first sealing ring inserted into the second sealing ring as an example, in one example, the outer peripheral wall of the first sealing ring is provided with a sealing rib 211, and the inner peripheral wall of the second sealing ring is not provided with a sealing rib 211. Only a single sealing ring 21 is provided with a sealing rib 211, which can simplify the structure under the premise of ensuring interference and sealing effect. In another example, the outer peripheral wall of the first sealing ring is not provided with a sealing rib 211, and the inner peripheral wall of the second sealing ring is provided with a sealing rib 211. Only a single sealing ring 21 is provided with a sealing rib 211, which can simplify the structure under the premise of ensuring interference and sealing effect. In yet another example, the outer peripheral wall of the first sealing ring and the inner peripheral wall of the second sealing ring are both provided with a sealing rib 211, which can strengthen the tight fitting effect between the two sealing rings 21 and improve the sealing reliability.

[0073] The technical scheme of the utility model is not limited to the above embodiment, it should be pointed out that the technical scheme of any one embodiment is combined with the technical scheme of one or more other embodiments, which is within the protection scope of the utility model. Although the utility model has been described in detail by general description and specific embodiments in the above, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the range of the utility model required to be protected.

Claims

1. An easy-to-clean food roasting appliance comprising a housing, a heating cavity provided in the housing, and a fan assembly provided outside the heating cavity and in communication with the heating cavity to circulate air in the heating cavity, characterized in that one of the side wall of the heating cavity and the fan assembly is provided with a plug-in post, and the other is provided with a plug-in slot, the plug-in post and the plug-in slot being plug-in connected to detachably connect the fan assembly to the heating cavity.

2. The easy-to-clean food roasting appliance according to claim 1, characterized in that the end of the plug-in post is provided with an annular clamping slot, and the plug-in slot is provided with a clamping spring having at least one pair of opposite and inwardly protruding protrusions, the protrusions being clamped in the clamping slot to limit the axial movement of the fan assembly along the plug-in post.

3. The easy-to-clean food roasting appliance according to claim 2, characterized in that the side wall of the clamping slot is provided with a guide slope to guide the protrusions to slide into and out of the clamping slot.

4. The easy-to-clean food roasting appliance according to claim 2, characterized in that the clamping spring is a half-enclosed elastic member with one side open.

5. The easy-to-clean food roasting appliance according to claim 1, characterized in that the end of the plug-in post is provided with a first magnetic member, and the bottom of the plug-in slot is provided with a second magnetic member, the first magnetic member and the second magnetic member being magnetically attracted to limit the axial movement of the fan assembly along the plug-in post.

6. The easy-to-clean food roasting appliance according to claim 1, characterized in that a first housing is protruded on the outer wall of the heating cavity, the peripheral wall of the first housing is provided with the plug-in post, the fan assembly comprises a second housing cooperatively arranged with the first housing, the peripheral wall of the second housing is provided with the plug-in slot, and the first housing and the second housing are butted to enclose a containing cavity containing a hot air fan of the fan assembly.

7. The easy-to-clean food roasting appliance according to claim 6, characterized in that the plug-in post is provided with at least four along the circumference of the first housing, and the plug-in slot is provided one by one corresponding to the plug-in post.

8. The easy-to-clean food roasting appliance according to claim 1, characterized in that the housing comprises a main housing surrounding the heating cavity, a door body rotatably connected to the front side of the main housing, and a rear cover body detachably mounted to the rear side of the main housing, and the fan assembly is arranged between the heating cavity and the rear cover body.

9. The easy-to-clean food roasting appliance according to claim 1, characterized in that the housing is provided with an exhaust air duct located outside the heating cavity and an exhaust pipe connecting the heating cavity and the exhaust air duct, and the fan assembly comprises a heat dissipation cavity, a motor provided in the heat dissipation cavity, and a heat dissipation fan driven by the motor, and the air outlet end of the heat dissipation cavity and the end of the exhaust air duct are flexibly butted.

10. The easy-to-clean food roasting appliance according to claim 9, characterized in that the air outlet end of the heat dissipation cavity and the end of the exhaust air duct are both provided with a sealing ring, and the peripheral wall of the sealing ring is provided with multiple rings of spaced sealing ribs. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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