Cooking apparatus

Abstract

The application provides a cooking equipment, relates to the technical field of kitchen appliances, and is used for solving the technical problem that a micro steaming and baking integrated machine has small volume or large volume. The cooking equipment comprises an equipment body, a driving motor, a micro steaming unit and a transmission unit. The equipment body has an inner container. The driving motor is arranged at the top of the inner container and has a driving shaft. The micro steaming unit is located at one side of the driving motor. The transmission unit comprises a transmission shaft and a power transmission piece. One end of the transmission shaft is in transmission fit connection with the power transmission piece, the other end is connected with the micro steaming unit, and one end of the power transmission piece, which is away from the transmission shaft, is in transmission fit connection with the driving shaft. According to the application, the driving motor is arranged at one side of the micro steaming unit, the driving motor and the micro steaming unit are arranged horizontally, the size of the driving motor, the micro steaming unit and the transmission unit in the height direction is reduced, and the volume of the cooking equipment can be enlarged or the overall volume of the cooking equipment can be reduced.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and more particularly to a cooking device. Background Technology

[0002] A microwave-steam-oven combo is a kitchen appliance that combines microwave, steam, and oven functions to perform multiple cooking tasks in one device, thereby improving cooking efficiency and flexibility.

[0003] In related technologies, a microwave-steam-grill combo oven has a motor bracket directly fixed above the waveguide, and a drive motor is fixedly mounted on the motor bracket. The drive shaft of the drive motor passes through the motor bracket, the waveguide, and the top wall of the device body in sequence to connect with the microwave antenna located in the cooking cavity. When the drive shaft rotates around its own axis, the drive shaft drives the microwave antenna to rotate. Typically, the minimum height between the top end face of the waveguide and the top end face of the drive motor is about 23mm.

[0004] However, in related technologies, microwave-steam-grill combos have technical problems such as small overall volume or large overall size. Utility Model Content

[0005] In view of the above problems, this application provides a cooking device to solve the technical problems of small overall volume or large overall size of microwave-steam-grill combination appliances. The device increases the overall volume of the microwave-steam-grill combination appliance, thereby enabling the cooking of larger-sized foods and improving the applicability and versatility of the cooking device; or, it reduces the overall size of the appliance, thereby reducing the space occupied by the cooking device, improving the structural compactness of the kitchen layout, and reducing the bulky appearance of the cooking device.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] This application provides a cooking device, including:

[0008] The equipment body has an inner pot, and the inner pot has a cooking cavity inside;

[0009] A drive motor is disposed at the top of the inner liner. The drive motor has a drive shaft that extends vertically and rotates about its own axis. The peripheral wall of the drive shaft has a first transmission part.

[0010] A microwave unit is located on one side of the drive motor. The microwave unit includes a waveguide and a microwave antenna. The waveguide is located at the top of the inner liner, and the microwave antenna is located inside the cooking cavity and connected to the waveguide.

[0011] The transmission unit includes a transmission shaft and a power transmission component. The transmission shaft passes through the top walls of the waveguide and the inner liner in a top-to-bottom direction and is connected to the microwave antenna. The second end of the transmission shaft is located above the waveguide, and the outer peripheral wall of the transmission shaft has a second transmission part. The power transmission component is respectively engaged with the first transmission part and the second transmission part so that the drive shaft drives the transmission shaft to rotate the microwave antenna around its own axis through the power transmission component.

[0012] This configuration, by placing the drive motor on one side of the microwave unit and connecting them via a transmission unit, allows for a horizontal arrangement of the drive motor and microwave unit. Compared to stacking the drive motor and microwave unit vertically, this reduces the overall height dimension occupied by the drive motor, microwave unit, and transmission unit. With the overall size of the cooking appliance remaining constant, this reduction in height dimension provides space for increasing the height dimension of the inner pot, thereby expanding the cooking appliance's capacity to cook larger foods and improving its applicability and versatility for different food sizes. Furthermore, with the inner pot size remaining constant, the reduction in height dimension of the drive motor, microwave unit, and transmission unit reduces the overall height of the cooking appliance, thus reducing its overall volume and the space it occupies. This improves the structural compactness of the kitchen layout and reduces the bulky appearance of the cooking appliance.

[0013] In some embodiments, the second transmission part and the first transmission part are located at the same height.

[0014] This configuration avoids staggered placement between the first and second transmission units, thereby further reducing the dimensions of the drive motor and transmission unit in the height direction, which can further expand the cooking volume of the cooking equipment or reduce the overall size of the cooking equipment.

[0015] In some embodiments, the power transmission component is a transmission belt, and the first transmission part and the second transmission part are both transmission grooves that match the transmission belt;

[0016] or,

[0017] The power transmission component is a transmission chain, and the first transmission part and the second transmission part are both sprockets that match the transmission chain;

[0018] or,

[0019] The power transmission component includes at least one gear set, the gear set including a first gear and a second gear meshing with each other, the first transmission part being a first tooth meshing with the first gear, and the second transmission part being a second tooth meshing with the second gear.

[0020] With this configuration, the transmission belt and transmission groove work together to achieve a simple structure, smooth operation, and easy installation and maintenance; the transmission chain and sprocket work together to achieve a simple structure, high transmission rigidity, and strong tensile strength; and the gear set and gear teeth mesh together to achieve a simple, compact structure and high transmission accuracy.

[0021] In some embodiments, the transmission unit further includes a support base and a bearing. The support base is disposed above the waveguide and connected to the waveguide. The top of the support base has a mounting groove with a through hole through which the first end of the transmission shaft passes. The transmission shaft passes through the through hole. The bearing is sleeved on the transmission shaft and located in the mounting groove, so that the transmission shaft can rotate relative to the support base about its own axis through the bearing.

[0022] This design, with its mounting groove on the support base, provides installation space for the bearing located between the drive shaft and the support base. This allows the drive shaft to rotate relative to the support base around its own axis via the bearing, thereby driving the microwave antenna to rotate. Furthermore, the rotation of the drive shaft relative to the support base via the bearing reduces the dynamic friction force when the drive shaft and the support base are in direct contact during rotation, thus reducing frictional losses between either the drive shaft or the support base and improving the service life of the cooking equipment.

[0023] In some embodiments, the second end of the drive shaft has a rotary structure, the rotary structure is coaxially arranged with the drive shaft, and the radial dimension of the rotary structure is larger than the radial dimension of the drive shaft. The rotary structure is located above the support base, and the second transmission part extends circumferentially on the peripheral wall of the rotary structure.

[0024] Furthermore, the axial dimension of the bearing is greater than the height of the mounting groove, so that the rotating structure and the support seat have a gap at least in the vertical direction.

[0025] This design has two advantages. First, the rotary structure increases the contact area between the power transmission component and the second transmission unit, increasing the friction between them and thus improving the transmission accuracy and the transmission ratio between the drive shaft and the drive shaft. Second, the bearing's axial dimension is greater than the mounting groove height, preventing direct contact between the rotary structure and the support base. This reduces the friction caused by direct contact during the drive shaft's rotation relative to the support base, resulting in smoother rotation of the drive shaft.

[0026] In some embodiments, the top of the support base has an upwardly extending protrusion, the mounting groove is disposed on the protrusion, the rotary structure has a clearance groove at a position corresponding to the protrusion, at least a portion of the protrusion is located in the clearance groove, the top end face of the bearing is in direct contact with the bottom of the clearance groove, and the sidewall of the clearance groove has a gap with the peripheral wall of the protrusion.

[0027] This design, with its protrusions and clearance grooves, improves the structural compactness between the support and the rotating structure, and further avoids direct contact between them. As a result, the friction caused by direct contact is further reduced during the rotation of the drive shaft relative to the support, making the rotation of the drive shaft smoother and increasing the service life of the support and the rotating structure.

[0028] In some embodiments, the bottom of the support base has a recessed portion that is recessed towards the top, and the peripheral wall of the drive shaft has a limiting structure located within the recessed portion.

[0029] This configuration limits the transmission shaft in the vertical upward direction, and combined with the bearing positioned between the transmission shaft and the support, limits the transmission shaft in the vertical downward direction. This prevents the transmission shaft from moving vertically, thereby reducing vertical axial movement and improving the stability of the transmission shaft during rotation relative to the support.

[0030] In some embodiments, the limiting structure is a limiting snap ring, which is snapped onto the outer peripheral wall of the transmission shaft.

[0031] This design, with its simple structure, easy installation, and convenient implementation of the limit spring, makes the device easy to use.

[0032] In some embodiments, the height dimension of the end face from the top of the waveguide to the second end of the drive shaft is less than or equal to 14 mm.

[0033] This design limits the dimensions of the drive shaft above the waveguide section, which in turn limits the dimensions of the drive shaft in the height direction, thus providing data support for increasing the volume of the cooking cavity in the cooking equipment or reducing the overall size of the cooking equipment.

[0034] In some embodiments, the cooking device further includes at least two fasteners connected to the top of the waveguide, and the support base disposed on the top of the waveguide and connected to the fasteners; and / or,

[0035] The cooking device also includes a seal located between the peripheral wall of the drive shaft and the inner pot, so as to seal and rotatably connect the drive shaft to the inner pot.

[0036] This design offers several advantages. First, the fasteners simplify the installation process, making it easy to secure the support base to the waveguide. Second, the seals prevent heat loss from the cooking cavity to the outside, thus improving the cooking efficiency of the appliance.

[0037] In some embodiments, the cooking device further includes a motor bracket located on top of the device body. The motor bracket has two connecting portions and a bent portion located between the two connecting portions. The bent portion is bent toward a side away from the device body to form an accommodating space between the bent portion and the device body. The connecting portions are connected to the device body. The drive motor is located within the accommodating space and connected to the bent portion. The first transmission portion on the drive shaft is located above the bent portion.

[0038] This configuration, with the motor bracket in place, secures the drive motor and improves its structural stability on the cooking equipment.

[0039] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the cooking equipment provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic diagram of the structure of a cooking device provided in an embodiment of this application;

[0042] Figure 2 An exploded view of a cooking apparatus provided in an embodiment of this application;

[0043] Figure 3 A schematic diagram of the structure of the cooking device provided in an embodiment of this application from one perspective;

[0044] Figure 4 A schematic diagram of a drive motor and transmission unit provided in an embodiment of this application;

[0045] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100 - Cooking equipment;

[0048] 110 - Equipment body; 111 - Inner liner; 1111 - Cooking cavity;

[0049] 120 - Drive motor; 121 - Drive shaft; 1211 - First transmission unit;

[0050] 130 - Microwave unit; 131 - Waveguide; 132 - Microwave antenna;

[0051] 140 - Transmission unit; 141 - Drive shaft; 142 - Power transmission component; 143 - Support base; 144 - Bearing;

[0052] 1411 - Second transmission unit; 1412 - Rotary structure; 1413 - Limiting structure;

[0053] 1431 - Mounting slot; 1432 - Protrusion; 1433 - Clearance groove; 1434 - Recess; 1435 - Gap;

[0054] 150 - Fastener; 160 - Seal; 170 - Motor bracket;

[0055] 171 - Connecting part; 172 - Bending part; 173 - Accommodating space;

[0056] The height dimension of the end face from the top of the a-waveguide to the second end of the drive shaft. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0058] This application provides a cooking device, which includes, but is not limited to, microwave ovens, microwave steam ovens, microwave ovens, and microwave-steam-grill combos. In the following embodiments, a microwave-steam-grill combo is used as an example for illustration.

[0059] In some embodiments, the microwave-steam-grill combo has a motor bracket directly fixed above the waveguide, and a drive motor is fixedly mounted on the motor bracket. The drive shaft of the drive motor passes through the motor bracket, the waveguide, and the top wall of the device body in sequence to connect with the microwave antenna located in the cooking cavity. When the drive shaft rotates around its own axis, the drive shaft drives the microwave antenna to rotate. Typically, the minimum height between the top end face of the waveguide and the top end face of the drive motor is about 23mm.

[0060] However, in the above embodiments, the microwave-steam-grill combo has the technical problem of small overall volume or large overall size.

[0061] It should be noted that the waveguide in a microwave-steam-grill combination oven is a component that transmits and guides the microwave energy generated by the oven, such as the energy generated by the magnetron, into the cooking cavity. The microwave antenna is responsible for releasing the microwave energy transmitted and guided by the waveguide into the cooking cavity of the oven to heat the food inside.

[0062] To address the aforementioned technical problems, this application further improves the cooking equipment in the above embodiments to increase the overall volume of the microwave-steam-grill combo, thereby enabling the cooking of larger-sized foods and improving the applicability and versatility of the cooking equipment; or, to reduce the overall size of the machine, thereby reducing the space occupied by the cooking equipment, improving the structural compactness of the kitchen layout, and reducing the bulky appearance of the cooking equipment.

[0063] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0064] See attached image. Figure 1 A schematic diagram of the structure of a cooking device provided in an embodiment of this application; Figure 2 An exploded view of a cooking apparatus provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the cooking apparatus provided in an embodiment of this application from one perspective. (In conjunction with...) Figure 1 , Figure 2 and Figure 3 As shown, the cooking device 100 includes a device body 110, a drive motor 120, a microwave unit 130, and a transmission unit 140.

[0065] Among them, such as Figure 1 and Figure 2 As shown, the device body 110 has an inner liner 111, and the inner liner 111 has a cooking cavity 1111 inside, which is used to place food that needs to be cooked.

[0066] Of course, in some embodiments, the device body 110 also includes a door, which is rotatably connected to the device body 110 for opening or closing the cooking cavity 1111. The door can be rotatably connected to the device body 110 by means of hinge connection, hole-shaft connection, etc.

[0067] Combination Figure 2 and Figure 3 As shown, the drive motor 120 is disposed on the top of the inner liner 111. The drive motor 120 has a drive shaft 121 that extends vertically and rotates about its own axis. The peripheral wall of the drive shaft 121 has a first transmission part 1211.

[0068] like Figure 3 As shown, the microwave unit 130 is located on one side of the drive motor 120. The microwave unit 130 includes a waveguide 131 and a microwave antenna 132. The waveguide 131 is located at the top of the inner liner 111, and the microwave antenna 132 is located inside the cooking cavity 1111 and connected to the waveguide 131. In some embodiments, the cooking device 100 also includes a magnetron for generating microwave energy. The waveguide 131 is used to transmit and guide the microwave energy generated by the magnetron to the cooking cavity 1111. After receiving the microwave energy in the waveguide 131, the microwave antenna 132 releases the microwave energy into the cooking cavity 1111.

[0069] For example, microwave antenna 132 is a metal antenna and waveguide 131 is a metal pipe. The two are connected by electromagnetic coupling to transmit microwave energy.

[0070] like Figure 2 and Figure 3 As shown, the transmission unit 140 includes a transmission shaft 141 and a power transmission component 142. The first end of the transmission shaft 141 passes vertically through the top wall of the waveguide 131 and the inner liner 111 and is connected to the microwave antenna 132. The second end of the transmission shaft 141 is located above the waveguide 131, and the outer peripheral wall of the transmission shaft 141 has a second transmission part 1411. The power transmission component 142 is in transmission cooperation with the first transmission part 1211 and the second transmission part 1411, so that the drive shaft 121 drives the transmission shaft 141 to rotate the microwave antenna 132 around its own axis through the power transmission component 142, thereby making the microwave antenna 132 release microwave energy more evenly into the cooking cavity 1111 to heat the food in the cooking cavity 1111 more evenly.

[0071] In some embodiments, the connection between the drive shaft 141 and the microwave antenna 132 is a fixed connection, and the fixed connection method includes, but is not limited to, bolt and screw hole connection, adhesive bonding, snap-fit ​​connection, etc.

[0072] In addition, in some specific embodiments, the first transmission unit 1211, the second transmission unit 1411, and the power transmission member 142 may be:

[0073] An example, such as Figure 2 and Figure 3 As shown, the power transmission component 142 is a transmission belt, and both the first transmission part 1211 and the second transmission part 1411 are transmission grooves that match the transmission belt. The transmission belt and transmission groove work together to provide a simple structure, smooth operation, and easy installation and maintenance.

[0074] Secondly, as an example, the power transmission component 142 is a transmission chain, and both the first transmission part 1211 and the second transmission part 1411 are sprockets that match the transmission chain. The transmission chain and sprockets work together to drive the vehicle, resulting in a simple structure, high transmission rigidity, and strong tensile strength.

[0075] Three exemplary embodiments: the power transmission component 142 includes at least one gear set, the gear set including a first gear and a second gear meshing with each other, a first transmission part 1211 being a first gear tooth meshing with the first gear, and a second transmission part 1411 being a second gear tooth meshing with the second gear. The meshing transmission of the gear set and the gear teeth has a simple and compact structure and high transmission accuracy.

[0076] In this embodiment, by placing the drive motor 120 on one side of the microwave unit 130 and connecting them via the transmission unit 140, the drive motor 120 is not positioned above the microwave unit 130. This horizontal arrangement of the drive motor 120 and microwave unit 130, compared to stacking them vertically, reduces the overall height dimension occupied by the drive motor 120, microwave unit 130, and transmission unit 140. With the overall size of the cooking device 100 remaining unchanged, the overall height dimension of the drive motor 120, microwave unit 130, and transmission unit 140 is reduced. The reduction in size provides space for the inner pot 111 to increase in height, thereby expanding the volume of the cooking equipment 100 to cook larger foods and improving its applicability and versatility for different food sizes. With the inner pot 111 remaining the same size, the reduction in height of the drive motor 120, microwave unit 130, and transmission unit 140 as a whole reduces the overall height of the cooking equipment 100, i.e., reduces the overall volume of the cooking equipment 100, thereby reducing the space occupied by the cooking equipment 100, improving the structural compactness of the kitchen layout, and reducing the bulky appearance of the cooking equipment 100.

[0077] Furthermore, in combination Figure 2 and Figure 3As shown, the second transmission unit 1411 and the first transmission unit 1211 are located at the same height. The first transmission unit 1211 and the second transmission unit 1411 are the components located at the highest points in the height direction of the drive motor 120 and the transmission unit 140, respectively. Since they are both located at the same height, they avoid a staggered arrangement, thereby further reducing the dimensions of the drive motor 120 and the transmission unit 140 in the height direction. This allows for a further increase in the cooking volume of the cooking device 100 or a reduction in the overall volume of the cooking device 100.

[0078] For example, such as Figure 3 As shown, the height dimension 'a' of the end face from the top of the waveguide 131 to the second end of the drive shaft 141 is less than or equal to 14 mm. Specifically, the size of 'a' can be 14 mm, 13 mm, 12 mm, 11 mm, 10 mm, etc., to limit the size of the part of the drive shaft 141 that is higher than the waveguide 131. Of course, this also corresponds to limiting the size of the drive shaft 121 in the height direction, thereby providing data support for increasing the volume of the cooking cavity 1111 in the cooking device 100 or reducing the overall size of the cooking device 100.

[0079] In addition, combined Figure 2 , Figure 4 and Figure 5 As shown, the transmission unit 140 also includes a support base 143 and a bearing 144. The support base 143 is disposed above the waveguide 131 and connected to the waveguide 131. The top of the support base 143 has a mounting groove 1431. The mounting groove 1431 has a through hole through which the first end of the transmission shaft 141 can pass. The transmission shaft 141 passes through the through hole. The bearing 144 is sleeved on the transmission shaft 141 and located in the mounting groove 1431, so that the transmission shaft 141 can rotate relative to the support base 143 about its own axis through the bearing 144. The mounting groove 1431 on the support base 143 provides installation space for the bearing 144 located between the drive shaft 141 and the support base 143, allowing the drive shaft 141 to rotate relative to the support base 143 around its own axis via the bearing 144, thereby driving the microwave antenna 132 to rotate. Furthermore, the rotation of the drive shaft 141 relative to the support base 143 via the bearing 144 reduces the dynamic friction force when the drive shaft 141 and the support base 143 rotate in direct contact, thereby reducing the frictional loss of either the drive shaft 141 or the support base 143, and thus improving the service life of the cooking equipment 100.

[0080] For example, the support base 143 and the waveguide 131 are fixedly connected. The fixed connection methods include, but are not limited to, bolt and nut connection, welding, bonding, snap-fit ​​connection, etc.

[0081] Specifically, such as Figure 2As shown, the cooking device 100 also includes at least two fasteners 150. The fasteners 150 are connected to the top of the waveguide 131, and the support base 143 is disposed on the top of the waveguide 131 and connected to the fasteners 150. The fasteners 150 make the fixing method between the support base 143 and the waveguide 131 simple and easy to install. For example, the cooking device 100 may have two, three, four, five, or six fasteners 150, which are bolt and nut sets. First, the bolt in the fastener 150 can be fixedly connected to the top of the waveguide 131 by means of bonding, welding, etc. The support base 143 has a through hole at a corresponding position. Therefore, the support base 143 is disposed on the waveguide 131 through the through hole and bolt, and then fastened with a nut, thereby fixing the support base 143 to the waveguide 131.

[0082] It should be noted that through holes are also provided on the top wall of the waveguide 131 and the inner liner 111 at positions corresponding to the through holes of the mounting groove 1431, so that the drive shaft 141 passes through each through hole in sequence and connects to the microwave antenna 132 located in the cooking cavity 1111.

[0083] Additionally, for example, the bearing 144 includes an inner ring, an outer ring, and rolling elements, wherein one of the inner ring and the outer ring is disposed on the drive shaft 141 and the other is disposed on the support 143. The inner ring and the outer ring are matched, and the rolling elements are disposed between the inner ring and the outer ring so that the inner ring and the outer ring are rotatably connected, thereby allowing the drive shaft 141 to rotate relative to the support 143.

[0084] Another example, such as Figure 3 As shown, the cooking device 100 also includes a seal 160, which is located between the peripheral wall of the drive shaft 141 and the inner pot 111, so that the drive shaft 141 and the inner pot 111 are sealed and rotatably connected. Specifically, the seal 160 can be a sealing ring, and the sealing ring can be made of silicone rubber. The seal 160 is provided to seal the gap between the drive shaft 141 and the inner pot 111, thereby preventing heat from the cooking cavity 1111 from being lost to the outside of the inner pot 111, thus improving the cooking efficiency of the cooking device 100.

[0085] Combination Figure 2 and Figure 5As shown, the second end of the drive shaft 141 has a rotary structure 1412, which is coaxially arranged with the drive shaft 141. The radial dimension of the rotary structure 1412 is larger than that of the drive shaft 141, thereby increasing the circumferential length of the rotary structure 1412. The rotary structure 1412 is located above the support base 143. The second transmission part 1411 extends circumferentially on the peripheral wall of the rotary structure 1412, thereby increasing the contact area between the power transmission component 142 and the rotary structure 1412, increasing the friction between them, thereby improving the transmission accuracy between them, and increasing the transmission ratio between the drive shaft 141 and the drive shaft 121.

[0086] For example, the rotary structure 1412 and the drive shaft 141 are an integral structure, which is prepared by an integral extrusion molding process, or the rotary structure 1412 and the drive shaft 141 are separate structures, which are fixedly connected. The fixed connection method includes, but is not limited to, welding, bonding, snap-fit ​​connection, bolt and screw hole connection, etc.

[0087] In some embodiments, a rotary structure 1412 is also provided at one end of the drive shaft 121 that drives the motor 120. The rotary structure 1412 is coaxially arranged with the drive shaft 121, and the radial dimension of the rotary structure 1412 is larger than the radial dimension of the drive shaft 121. The first transmission part 1211 extends circumferentially on the peripheral wall of the rotary part. The transmission ratio between the drive motor 120 and the microwave antenna 132 can be changed by changing the dimensions of the drive shaft 141 and the rotary structure 1412 on the drive shaft 121.

[0088] Furthermore, because the bearing 144 is sleeved on the drive shaft 141 and located within the mounting groove 1431, that is, the bearing 144 is located between the rotating structure 1412 on the drive shaft 141 and the groove. In some embodiments, such as Figure 5 As shown, the axial dimension of the bearing 144 is greater than the height of the mounting groove 1431, so that the rotating structure 1412 and the support 143 have a gap 1435 at least in the vertical direction, thereby avoiding direct contact between the rotating structure 1412 and the support 143. This reduces the frictional force caused by direct contact between the two during the rotation of the drive shaft 141 relative to the support 143, making the rotation of the drive shaft 141 smoother.

[0089] Furthermore, in some embodiments, the following continues... Figure 5As shown, the top of the support 143 has an upwardly extending protrusion 1432, and the mounting groove 1431 is provided on the protrusion 1432. The rotary structure 1412 has a relief groove 1433 at a position corresponding to the protrusion 1432. At least a portion of the protrusion 1432 is located in the relief groove 1433. The top end face of the bearing 144 is in direct contact with the bottom of the relief groove 1433, and there is a gap between the side wall of the relief groove 1433 and the peripheral wall of the protrusion 1432. The protrusion 1432 and the clearance groove 1433 improve the structural compactness between the support 143 and the rotary structure 1412, and further avoid direct contact between the rotary structure 1412 and the support 143. As a result, the friction between the drive shaft 141 and the support 143 is further reduced during the rotation of the drive shaft 141 relative to the support 143. This makes the rotation of the drive shaft 141 smoother and improves the service life of the support 143 and the rotary structure 1412.

[0090] Additionally, in some embodiments, such as Figure 5 As shown, the bottom of the support base 143 has a recessed portion 1434 that is recessed towards the top. The peripheral wall of the transmission shaft 141 has a limiting structure 1413, which is located inside the recessed portion 1434, so that the limiting structure 1413 is engaged with the recessed portion 1434, thereby limiting the transmission shaft 141 in the vertical upward direction. Combined with the bearing 144 set between the transmission shaft 141 and the support base 143, the transmission shaft 141 is limited in the vertical downward direction. This prevents the transmission shaft 141 from moving vertically, thereby reducing the vertical movement of the transmission shaft 141 and improving the stability of the transmission shaft 141 during rotation relative to the support base 143.

[0091] For example, the limiting structure 1413 is a limiting snap ring, which is snapped onto the outer peripheral wall of the transmission shaft 141. The limiting snap ring is simple in structure, easy to install, and easy to implement.

[0092] In other embodiments, return Figure 2 and Figure 3 As shown, the cooking device 100 also includes a motor bracket 170, which is located on top of the device body 110 to fix the drive motor 120 and improve the structural stability of the drive motor 120 on the cooking device 100. The motor bracket 170 has two connecting portions 171 and a bent portion 172 located between the two connecting portions 171. The bent portion 172 bends toward the side away from the device body 110 so that an accommodating space 173 is formed between the bent portion 172 and the device body 110. The connecting portions 171 are connected to the device body 110. The drive motor 120 is located in the accommodating space 173 and connected to the bent portion 172. The first transmission portion 1211 on the drive shaft 121 is located above the bent portion 172.

[0093] For example, the two connecting parts 171 are fixedly connected to the device body 110, and the drive motor 120 can be fixedly connected to both the device body 110 and the bent part 172. The fixed connection methods include, but are not limited to, bolt and nut connection, bonding, welding, snap-fit ​​connection, etc.

[0094] Secondly, as an example, a through hole is provided on the upper part of the bent portion 172 so that the drive shaft 141 passes through the bent portion 172 and is located above the bent portion 172, so that the dimensions of the first drive portion 1211 and the second drive portion 1411 are adapted in height.

[0095] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0096] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0097] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0098] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cooking device, characterized in that, include: The equipment body (110) has an inner liner (111) and the inner liner (111) has a cooking cavity (1111) inside; A drive motor (120) is disposed on the top of the inner liner (111). The drive motor (120) has a drive shaft (121) that extends vertically and rotates about its own axis. A first transmission part (1211) is provided on the peripheral wall of the drive shaft (121). A microwave unit (130) is located on one side of the drive motor (120). The microwave unit (130) includes a waveguide (131) and a microwave antenna (132). The waveguide (131) is located on the top of the inner liner (111), and the microwave antenna (132) is located inside the cooking cavity (1111) and connected to the waveguide (131). The transmission unit (140) includes a transmission shaft (141) and a power transmission component (142). In a top-to-bottom direction, the transmission shaft (141) passes through the top walls of the waveguide (131) and the inner liner (111) and is connected to the microwave antenna (132). The second end of the transmission shaft (141) is located above the waveguide (131), and the outer peripheral wall of the transmission shaft (141) has a second transmission part (1411). The power transmission component (142) is in transmission cooperation with the first transmission part (1211) and the second transmission part (1411) respectively, so that the drive shaft (121) drives the transmission shaft (141) through the power transmission component (142) to drive the microwave antenna (132) to rotate around its own axis.

2. The cooking apparatus according to claim 1, characterized in that, The second transmission unit (1411) and the first transmission unit (1211) are located at the same height.

3. The cooking apparatus according to claim 2, characterized in that, The power transmission component (142) is a transmission belt, and the first transmission part (1211) and the second transmission part (1411) are both transmission grooves that match the transmission belt; or, The power transmission component (142) is a transmission chain, and the first transmission part (1211) and the second transmission part (1411) are both sprockets that match the transmission chain; or, The power transmission component (142) includes at least one gear set, the gear set including a first gear and a second gear meshing with each other, the first transmission part (1211) is a first gear tooth meshing with the first gear, and the second transmission part (1411) is a second gear tooth meshing with the second gear.

4. The cooking apparatus according to any one of claims 1-3, characterized in that, The transmission unit (140) further includes a support base (143) and a bearing (144). The support base (143) is disposed above the waveguide (131) and connected to the waveguide (131). The top of the support base (143) has a mounting groove (1431). The mounting groove (1431) has a through hole through which the first end of the transmission shaft (141) can pass. The transmission shaft (141) passes through the through hole. The bearing (144) is sleeved on the transmission shaft (141) and located in the mounting groove (1431) so that the transmission shaft (141) can rotate about its own axis relative to the support base (143) through the bearing (144).

5. The cooking apparatus according to claim 4, characterized in that, The second end of the drive shaft (141) has a rotary structure (1412), which is coaxially arranged with the drive shaft (141) and the radial dimension of the rotary structure (1412) is larger than the radial dimension of the drive shaft (141). The rotary structure (1412) is located above the support base (143), and the second transmission part (1411) extends circumferentially on the peripheral wall of the rotary structure (1412). Furthermore, the axial dimension of the bearing (144) is greater than the height of the mounting groove (1431) so that the rotary structure (1412) and the support (143) have a gap (1435) at least in the vertical direction.

6. The cooking apparatus according to claim 5, characterized in that, The support base (143) has an upwardly extending protrusion (1432) at its top, and the mounting groove (1431) is disposed on the protrusion (1432). The rotary structure (1412) has a clearance groove (1433) at a position corresponding to the protrusion (1432). At least a portion of the protrusion (1432) is located in the clearance groove (1433). The top end face of the bearing (144) is in direct contact with the bottom of the clearance groove (1433), and there is a gap between the groove sidewall of the clearance groove (1433) and the peripheral wall of the protrusion (1432).

7. The cooking apparatus according to claim 6, characterized in that, The bottom of the support base (143) has a recess (1434) that is recessed towards the top, and the peripheral wall of the transmission shaft (141) has a limiting structure (1413) located inside the recess (1434).

8. The cooking apparatus according to claim 7, characterized in that, The limiting structure (1413) is a limiting snap ring, which is snapped onto the outer peripheral wall of the transmission shaft (141).

9. The cooking apparatus according to claim 5, characterized in that, The height dimension of the end face from the top of the waveguide (131) to the second end of the drive shaft (141) is less than or equal to 14 mm.

10. The cooking apparatus according to claim 4, characterized in that, The cooking device further includes at least two fasteners (150) connected to the top of the waveguide (131), and the support base (143) is disposed on the top of the waveguide (131) and connected to the fasteners (150); and / or, The cooking device also includes a seal (160) located between the peripheral wall of the drive shaft (141) and the inner pot (111) to seal and rotatably connect the drive shaft (141) and the inner pot (111).

11. The cooking apparatus according to any one of claims 1-3, characterized in that, The cooking device (100) also includes a motor bracket (170) located on top of the device body (110). The motor bracket (170) has two connecting portions (171) and a bent portion (172) located between the two connecting portions (171). The bent portion (172) bends toward the side away from the device body (110) to form an accommodating space (173) between the bent portion (172) and the device body (110). The connecting portions (171) are connected to the device body (110). The drive motor (120) is located in the accommodating space (173) and connected to the bent portion (172). The first transmission portion (1211) on the drive shaft (121) is located above the bent portion (172).

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