Electromagnetic drive inner disc lifting device and cooking equipment

Abstract

The utility model discloses an electromagnetic drive's inner disc lifting device and cooking equipment relates to cooking electrical appliances technical field, including inner disc and be used for driving inner disc lifting lifting assembly, the below of lifting assembly is equipped with drive assembly, and lifting assembly includes lifting piece and with the sub -magnetic piece of lifting piece's being connected, and the drive end of drive assembly is connected with the cooperation of the sub -magnetic piece's female magnetic piece, and drive assembly is used for driving female magnetic piece rotation, and the top of female magnetic piece is equipped with a plurality of adsorption area, and the bottom of sub -magnetic piece is equipped with with adsorption area cooperation's adsorbed area, and female magnetic piece and sub -magnetic piece realize power transmission through magnetism opposite sex and attract principle, and sub -magnetic piece can drive lifting piece to move up and down after rotation, to this to drive inner disc to lift, like this can realize drive portion and the physical isolation of wading area, and simultaneously, through a plurality of adsorption area and adsorbed area can guarantee the adsorption firm between female magnetic piece and sub -magnetic piece.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, and in particular to an electromagnetically driven inner plate lifting device and cooking equipment. Background Technology

[0002] As a key functional module in cooking equipment (such as lifting hot pots, sugar-reducing rice cookers, etc.), the inner plate lifting device's core function is to realize the automatic lifting of the cooking plate, thereby bringing users a more convenient cooking experience.

[0003] Traditional internal plate lifting devices typically employ an integrated design of the motor and push rod, where the motor is directly connected to the push rod via gears or other mechanical connectors for power transmission. While this design is structurally simple, it has several significant drawbacks. First, it increases the overall complexity of the device, severely limiting user convenience.

[0004] In certain cooking scenarios, the inner plate lifting device inevitably comes into contact with liquids, such as during cleaning or certain cooking techniques. However, the integrated design of the motor and push rod in traditional structures makes the motor prone to water leakage, which could lead to electrical leakage and pose a significant threat to user safety.

[0005] To address the above shortcomings, further improvements are needed to the inner plate lifting device to mitigate potential leakage issues caused by the existing motor and push rod mechanism. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide an electromagnetically driven inner plate lifting device and cooking equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetically driven inner disc lifting device, comprising an inner disc and a lifting assembly for driving the inner disc to lift and lower. A driving assembly is provided below the lifting assembly. The lifting assembly includes a lifting component and a sub-magnetic component connected to the lifting component. The driving end of the driving assembly is connected to a female magnetic component that cooperates with the sub-magnetic component. The driving assembly is used to drive the female magnetic component to rotate. Both the female magnetic component and the sub-magnetic component are provided with at least two magnetic pole regions. The female magnetic component is used to drive the sub-magnetic component to rotate, so that the sub-magnetic component drives the lifting component to rotate, thereby driving the inner disc to move up and down relative to the lifting component.

[0008] As a further embodiment of this utility model: the lifting assembly also includes a protective component located below the inner plate. The lifting component and the sub-magnetic component are both located inside the protective component. The lifting component includes a transmission rod and a movable rod. The bottom end of the transmission rod is connected to the sub-magnetic component. The movable rod is inserted into the protective component. The movable rod can move relative to the axis of the transmission rod. The top end of the movable rod abuts against the inner plate.

[0009] As a further embodiment of this utility model: the surface of the transmission rod is provided with threads, the bottom end of the movable rod is provided with a threaded hole, the transmission rod and the movable rod are connected by a helical transmission through the threaded hole, the outer surface of the movable rod is provided with a limiting part, and the inner wall of the protective member is provided with a limiting groove that matches the limiting part.

[0010] As a further embodiment of this utility model: the sub-magnetic component includes a sub-magnet and a connecting block, the connecting block is sleeved on the transmission rod, the sub-magnet is provided with multiple magnetic pole regions, the multiple magnetic pole regions are distributed along the circumference of the sub-magnet, the protective component is provided with a bearing inside, and the bearing is sleeved on the surface of the transmission rod.

[0011] As a further embodiment of this utility model: the female magnetic component includes a female magnet and a rotating block. The female magnet is provided with multiple magnetic pole regions, and the multiple magnetic poles are distributed along the circumference of the female magnet. The bottom of the rotating block is provided with a receiving groove for accommodating the female magnet. The rotating block is sleeved on the driving end of the driving assembly.

[0012] As a further embodiment of this utility model: the inner disc lifting device further includes a deceleration rotating component, which includes a first transmission component, a gear set, and a second transmission component. The first transmission component and the second transmission component are respectively connected to the gear set. The first transmission component is interference-fitted with the transmission rod, and the second transmission component is interference-fitted with the sub-magnetic component.

[0013] As a further embodiment of this utility model: the inner plate includes a main body and a connecting sleeve disposed on the main body, the connecting sleeve and the lifting component are coaxially arranged, and the connecting sleeve is sleeved on the surface of the movable rod.

[0014] As a further embodiment of this utility model: the drive assembly includes a motor and a drive shaft, wherein the motor and the drive shaft are not coaxially arranged, and the drive shaft and the lifting component are coaxially arranged.

[0015] As a further embodiment of this utility model: a heating plate is provided between the inner plate and the driving assembly, the female magnetic component is exposed on the upper surface of the heating plate, and a temperature sensing element is provided in the heating plate.

[0016] A cooking appliance includes a pot body and an inner plate lifting device as described above.

[0017] Compared with the existing technology, the beneficial effects of this technical solution are as follows: the female magnetic component and the female magnetic component realize power transmission through the principle of attraction between opposite poles of magnets. After the female magnetic component rotates, it can drive the lifting component to move up and down, thereby driving the inner plate to rise and fall. This can achieve physical isolation between the driving part and the water-contaminated area, improving waterproof and leakage prevention performance. At the same time, the adsorption between the female magnetic component and the female magnetic component is stable through multiple adsorption areas and adsorbed areas, avoiding the problem of insufficient adsorption force between the female magnetic component and the female magnetic component, which prevents power transmission.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ; Figure 3 This is a top view schematic diagram of the lifting component of this utility model; Figure 4 This is a utility model Figure 3 Schematic diagram of the cross section at point AA; Figure 5 This is the utility model. Figure 4 Enlarged diagram of point A Figure 6 This is a schematic diagram of the heating plate structure of this utility model; Figure 7 This is a top view of the pot body of this utility model; Figure 8 This is a utility model Figure 6 Schematic diagram of the cross section at point BB; Figure 9 This is a schematic diagram of the explosion effect of the deceleration rotating component of this utility model; Figure 10 This is the utility model. Figure 8 Enlarged diagram at point B Figure 11This is a top view schematic diagram of the drive component of this utility model; Figure 12 This is a utility model Figure 9 Schematic diagram of the cross section at point CC; Figure 13 This is a top view schematic diagram of the protective component of this utility model; Figure 14 This is a utility model Figure 11 Schematic diagram of the cross section at point DD; Figure 15 This is a schematic diagram of the explosion effect of the mother magnetic component of this utility model; Figure 16 This is a schematic diagram of the explosion effect of the sub-magnetic component of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This embodiment discloses a cooking device, mainly an electromagnetically driven inner plate lifting device, such as... Figures 1-16 As shown, an electromagnetically driven inner plate lifting device includes an inner plate 1, which is made of food-grade stainless steel. Its structure is adapted to the inner dimensions of commonly used cooking equipment, and its smooth inner wall prevents food from sticking. The bottom has an installation structure that connects to the lifting assembly 2. Below the lifting assembly 2 is a drive assembly 3. The lifting assembly 2 includes a lifting element 21 and a sub-magnetic element 22 connected to the lifting element 21. The sub-magnetic element 22 is fixedly connected to the lifting element 21 without relative slippage, ensuring stable power transmission. The drive end of the drive assembly 3 is connected to a female magnetic element 31 that cooperates with the sub-magnetic element 22. The female magnetic element 31 and the sub-magnetic element... The spacing between the two magnetic components is reasonable, which can meet the requirements of magnetic field transmission and avoid collisions during rotation. The drive component 3 is used to drive the rotation of the female magnetic component 31. Both the female magnetic component 31 and the female magnetic component 22 are provided with at least two magnetic pole regions. Both the female magnetic component 31 and the female magnetic component 22 are made of high temperature resistant and strong magnetic material, which is suitable for the working temperature environment of the cooking equipment. The female magnetic component 31 is used to drive the female magnetic component 22 to rotate, so that the female magnetic component 22 drives the lifting component 21 to rotate, thereby driving the inner plate 1 to move up and down relative to the lifting component 21. The lifting stroke meets the needs of soaking and convenient picking and placing of ingredients in the cooking scenario. The lifting speed is smooth to avoid splashing soup.

[0023] In some embodiments, the lifting assembly 2 further includes a protective member 23 disposed below the inner plate 1. The protective member 23 is made of food-grade high-temperature resistant material and has a hollow structure to isolate cooking oil and liquid from contact with internal components. The lifting member 21 and the sub-magnetic member 22 are both disposed inside the protective member 23. The top of the protective member 23 is provided with a through hole with a sealing structure for the lifting member 21 to pass through, further preventing impurities from entering. The lifting member 21 includes a transmission rod 211 and a movable rod 212. The transmission rod 211 is made of rust-proof metal material, and the movable rod 212 is made of food-grade material. The top end is provided with an abutment structure that fits against the inner plate 1 to avoid hard contact that could cause deformation of the inner plate 1. The bottom end of the transmission rod 211 is connected to the sub-magnetic member 22 to ensure lossless torque transmission. The movable rod 212 is inserted into the protective member 23 and can move relative to the axis of the transmission rod 211. The top end of the movable rod 212 abuts against the inner plate 1, and a buffer structure is provided at the abutment point to buffer the lifting impact force and enhance the sealing performance.

[0024] Specifically: the surface of the transmission rod 211 is provided with threads, and the bottom end of the movable rod 212 is provided with a threaded hole 213. The transmission rod 211 and the movable rod 212 form a helical transmission connection through the threaded hole 213. This transmission structure has a self-locking function. When the drive component 3 stops working, the movable rod 212 can stay stably, thereby preventing the inner plate 1 from sliding down due to gravity. The outer surface of the movable rod 212 is provided with a limiting part 214, and the inner wall of the protective part 23 is provided with a limiting groove 215 that matches the limiting part 214. The limiting part 214 and the limiting groove 215 cooperate to restrict the movable rod 212 from rotating with the transmission rod 211 and only moving up and down along the axial direction.

[0025] Furthermore: the sub-magnetic component 22 includes a sub-magnet 221 and a connecting block 222. The connecting block 222 is made of metal and is used to fix the sub-magnet 221 and connect it to the transmission rod 211. The connecting block 222 is sleeved on the transmission rod 211. The connecting block 222 and the transmission rod 211 are fixed by an anti-rotation structure to ensure synchronous rotation. The connecting block 222 is sleeved on the transmission rod 211. The adsorption area 223 is located on the sub-magnet 221. There are six adsorption areas 223, which are distributed adjacent to each other along the circumference of the sub-magnet 221. The adsorption area 223 is a magnetic pole and is fan-shaped. The sub-magnet 221 is fixed to the connecting block 222 by a stable structure and is not easy to fall off. The protective component 23 has a bearing 231 inside. The bearing 231 can reduce the frictional resistance when the transmission rod 211 rotates and improve the rotational stability. The bearing 231 is sleeved on the surface of the transmission rod 211. The bearing 231 is installed in a reasonable position to reduce the radial runout when the transmission rod 211 rotates.

[0026] More specifically: the female magnetic component 31 includes a female magnet 311 and a rotating block 312. The rotating block 312 is made of a high-temperature resistant material and is used to fix the female magnet 311 and connect to the driving end of the driving assembly 3. The female magnet 311 has multiple magnetic pole regions, and the multiple magnetic poles are distributed along the circumference of the female magnet 311. The female magnet 311 and the daughter magnet 221 have the same structure and material to ensure symmetrical magnetic field forces and smooth transmission. The adsorption areas 313 are provided on the female magnet 311. There are six adsorption areas 313, which are distributed adjacent to each other along the circumference of the female magnet 311. The positions of the six adsorption areas 313 correspond one-to-one with the positions of the adsorbed areas 223. The adsorption areas 313 are magnetic poles. The adsorption area 313 is fan-shaped. When the female magnetic component 31 starts to rotate, it will drive the female magnetic component 22 to start rotating through the magnetic connection between the female magnetic component 31 and the adsorption area 223, which in turn drives the lifting component 21 to start rotating. After the lifting component 21 rotates, it will drive the inner disk 1 to start to move up and down. The bottom of the rotating block 312 is provided with a receiving groove 314 for accommodating the female magnet 311. The size of the receiving groove 314 is adapted to the female magnet 311 to prevent the female magnet 311 from shaking. The rotating block 312 is sleeved on the driving end of the driving component 3. The rotating block 312 is firmly connected to the driving end without relative slippage, ensuring that the driving torque is fully transmitted.

[0027] In other embodiments: there can be four adsorption areas 313 and four adsorbed areas 213 on the mother magnet 311 and the daughter magnet 211. The four adsorption areas 313 are also arranged circumferentially along the axis of the mother magnet 311, and the four adsorbed areas 213 are also arranged circumferentially along the axis of the daughter magnet 211. The positions of the adsorption areas 313 and the adsorbed areas 213 correspond one-to-one to ensure that the adsorption between the mother magnet 313 and the daughter magnet 213 will not loosen and to ensure the normal rotation of the lifting component 21. Similarly, there can also be eight or more adsorption areas 313 and four adsorbed areas 213 to further ensure the stable adsorption between the mother magnet 311 and the daughter magnet 211.

[0028] In other embodiments: the inner disc lifting device further includes a deceleration rotating component 24, which is installed on a fixed structure inside the protective component 23 and is in a stable position. The deceleration rotating component 24 includes a first transmission component 241, a gear set 242, and a second transmission component 243. Both the first transmission component 241 and the second transmission component 243 are made of wear-resistant metal. The gear set 242 can realize the deceleration function. The first transmission component 241 and the second transmission component 243 are respectively connected to the gear set 242 and transmit power through gear meshing. The deceleration ratio is adapted to the lifting speed requirement, so that the inner disc 1 lifts and lowers more smoothly. The first transmission component 241 is interference-fitted with the transmission rod 211, and the second transmission component 243 is interference-fitted with the sub-magnetic component 22. The fit is tight and ensures power transmission without loss.

[0029] In some embodiments, the inner plate 1 includes a main body 11 and a connecting sleeve 12 disposed on the main body 11. The main body 11 is a structure for holding cooking ingredients. The connecting sleeve 12 is fixedly connected to the main body 11. The connecting sleeve 12 and the lifting member 21 are coaxially arranged to ensure that the power of the lifting member 21 is transmitted vertically to the inner plate 1. The connecting sleeve 12 is sleeved on the surface of the movable rod 212. The connecting sleeve 12 and the movable rod 212 cooperate smoothly and are provided with a sealing structure to prevent liquid from seeping in.

[0030] Specifically: the drive assembly 3 includes a motor 32 and a drive shaft 33. The motor 32 is a commonly used drive motor with power and speed adapted to lifting requirements. The motor 32 and the drive shaft 33 are not coaxial. The motor 32 is connected to the drive shaft 33 through a transmission structure, which can compensate for installation errors and ensure stable power transmission. The drive shaft 33 and the lifting component 21 are coaxial. The drive shaft 33 is made of metal, which is rust-proof and durable. It is aligned with the axis of the lifting component 21 to ensure accurate torque transmission.

[0031] Furthermore, a heating plate 13 is provided between the inner plate 1 and the drive assembly 3. The heating plate 13 is the heating component of the cooking equipment. It is made of a material with good thermal conductivity and has an anti-stick coating on its surface for easy cleaning. The female magnetic component 31 is exposed on the upper surface of the heating plate 13. The heating plate 13 has an opening for the female magnetic component 31 to be exposed. The opening has a sealing structure to prevent liquid from seeping into the drive assembly 3. A temperature sensing element 14 is provided in the heating plate 13. The temperature sensing element 14 can detect the temperature of the heating plate 13 in real time. When the temperature exceeds the safe range, a protection mechanism is triggered to cut off the heating to avoid dry burning or overheating.

[0032] The specific lifting process of the inner plate 1 is as follows: Power transmission is achieved using the principle of opposite poles attracting. The motor and the main magnetic component are located below the pot body, while the secondary magnetic component and its linked lifting component are located inside the protective component. The two achieve non-contact transmission through the principle of opposite poles attracting. When the motor starts, its output end drives the main magnetic component to rotate. The main magnetic component drives the coaxially arranged secondary magnetic component to rotate synchronously through magnetic force. The secondary magnetic component drives the transmission connecting component to rotate, and then, through the bearing and transmission rod, converts the rotational motion into axial linear motion, pushing the movable rod to lift and lower, thereby driving the inner plate, which is in contact with it, to complete the lifting action. This design effectively achieves physical isolation between the drive unit and the water-contaminated area, improving waterproof and leak-proof performance, while also facilitating the cleaning and maintenance of the inner plate.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electromagnetically driven inner disc lifting device, characterized in that, The device includes an inner disk (1) and a lifting assembly (2) for driving the inner disk (1) to rise and fall. A driving assembly (3) is provided below the lifting assembly (2). The lifting assembly (2) includes a lifting component (21) and a sub-magnetic component (22) connected to the lifting component (21). The driving end of the driving assembly (3) is connected to a female magnetic component (31) that cooperates with the sub-magnetic component (22). The driving assembly (3) is used to drive the female magnetic component (31) to rotate. The top of the female magnetic component (31) is provided with multiple adsorption areas (313). The bottom of the sub-magnetic component (22) is provided with an adsorbed area (223) that cooperates with the adsorption area (313). The female magnetic component (31) is used to drive the sub-magnetic component (22) to rotate, so that the sub-magnetic component (22) drives the lifting component (21) to rotate, thereby driving the inner disk (1) to rise and fall relative to the lifting component (21).

2. The electromagnetically driven inner disc lifting device according to claim 1, characterized in that, The lifting assembly (2) also includes a protective component (23) located below the inner plate (1). The lifting component (21) and the sub-magnetic component (22) are both located inside the protective component (23). The lifting component (21) includes a transmission rod (211) and a movable rod (212). The bottom end of the transmission rod (211) is connected to the sub-magnetic component (22). The movable rod (212) is inserted into the protective component (23). The movable rod (212) can move relative to the axis of the transmission rod (211). The top end of the movable rod (212) abuts against the inner plate (1).

3. The electromagnetically driven inner disc lifting device according to claim 2, characterized in that, The transmission rod (211) has a threaded surface, and the bottom end of the movable rod (212) has a threaded hole (213). The transmission rod (211) and the movable rod (212) are connected by a helical transmission through the threaded hole (213). The outer surface of the movable rod (212) has a limiting part (214), and the inner wall of the protective part (23) has a limiting groove (215) that matches the limiting part (214).

4. The electromagnetically driven inner disc lifting device according to claim 2, characterized in that, The sub-magnetic component (22) includes a sub-magnet (221) and a connecting block (222). The connecting block (222) is sleeved on the transmission rod (211). The adsorption area (223) is located on the sub-magnet (221). There are six adsorption areas (223) distributed around the sub-magnet (221) in a circumferential direction. The adsorption area (223) is a magnetic pole and is fan-shaped. The protective component (23) has a bearing (231) inside. The bearing (231) is sleeved on the surface of the transmission rod (211).

5. The electromagnetically driven inner disc lifting device according to claim 4, characterized in that, The female magnetic component (31) includes a female magnet (311) and a rotating block (312). The adsorption area (313) is located on the female magnet (311). There are six adsorption areas (313) distributed around the female magnet (311) in a circumferential direction. The positions of the six adsorption areas (313) correspond one-to-one with the positions of the adsorbed areas (223). The adsorption area (313) is a magnetic pole. The adsorption area (313) is fan-shaped. The bottom of the rotating block (312) is provided with a receiving groove (314) for accommodating the female magnet (311). The rotating block (312) is sleeved on the driving end of the driving assembly (3).

6. The electromagnetically driven inner disc lifting device according to claim 2, characterized in that, The inner disc lifting device further includes a deceleration rotating component (24), which includes a first transmission component (241), a gear set (242), and a second transmission component (243). The first transmission component (241) and the second transmission component (243) are respectively connected to the gear set (242). The first transmission component (241) is interference-fitted with the transmission rod (211), and the second transmission component (243) is interference-fitted with the sub-magnetic component (22).

7. The electromagnetically driven inner disc lifting device according to claim 2, characterized in that, The inner plate (1) includes a main body (11) and a connecting sleeve (12) provided on the main body (11). The connecting sleeve (12) and the lifting component (21) are coaxially arranged. The connecting sleeve (12) is sleeved on the surface of the movable rod (212).

8. The electromagnetically driven inner disc lifting device according to claim 1, characterized in that, The drive assembly (3) includes a motor (32) and a drive shaft (33). The motor (32) and the drive shaft (33) are not coaxial, while the drive shaft (33) and the lifting component (21) are coaxial.

9. The electromagnetically driven inner disc lifting device according to claim 1, characterized in that, A heating plate (13) is provided between the inner plate (1) and the drive assembly (3). The female magnetic component (31) is exposed on the surface of the heating plate (13). A temperature sensing element (14) is provided in the heating plate (13).

10. A cooking device, characterized in that: It includes a pot body (4) and an inner plate lifting device as described in any one of claims 1 to 9.

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