Cooking utensil

Abstract

The utility model provides a cooking utensil. The cooking utensil comprises a shell; a heating container that can be attached to the housing; the coil panel is movably arranged on the shell, a coil is wound on the coil panel, and the coil on the coil panel generates a magnetic field to heat the heating container under the condition that the coil is electrified; the driving assembly comprises a driving part and a rotating part, the rotating part is arranged on one side of the coil panel, one of the rotating part and the coil panel is provided with a matching part, the other one is provided with a lifting structure, and the driving part is used for driving the rotating part to rotate, so that the matching part is matched with the lifting structure; the coil panel is driven to move between a first position close to the heating container and a second position far away from the heating container; wherein at least one of the matching part and the lifting structure is provided with an anti-friction piece, and at least part of the matching part is in contact with the lifting structure through the anti-friction piece. According to the cooking utensil provided by the utility model, the friction force between the matching part and the lifting structure is reduced due to the arrangement of the friction reducing piece.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and more specifically, to a cooking utensil. Background Technology

[0002] In related technologies, the driving part of the cooking appliance drives the coil to move through the rotating part, which changes the distance between the coil and the heating container to adjust the heating power of the heating container. During the rotation of the rotating part, the friction between the rotating part and the coil is large, resulting in greater wear between the coil and the rotating part, which in turn affects the service life of the cooking appliance. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, this utility model provides a cooking utensil.

[0005] In view of this, the present invention proposes a cooking appliance, comprising: a shell; a heating container that can be installed in the shell; a coil that is movably disposed in the shell, a coil wound on the coil, the coil on the coil generating a magnetic field to heat the heating container when energized; and a driving assembly comprising a driving part and a rotating part, the rotating part being disposed on one side of the coil, one of the rotating part and the coil having a mating part, and the other having a lifting structure, the driving part being used to drive the rotating part to rotate, so that the mating part engages with the lifting structure to drive the coil to move between a first position close to the heating container and a second position away from the heating container; wherein, at least one of the mating part and the lifting structure has a friction-reducing element, and the mating part at least partially contacts the lifting structure through the friction-reducing element.

[0006] The cooking appliance provided by this utility model includes a shell, a heating container, a coil, and a drive assembly. The heating container is disposed inside the shell, and a coil is wound on the coil. When the coil on the coil is energized, it can generate a magnetic field. The heating container heats up under the action of the magnetic field of the coil, thereby cooking the food inside the heating container. The drive assembly includes a drive unit and a rotating unit. The rotating unit is located on one side of the coil disc, and one of the rotating unit and the coil disc has a mating part, while the other has a lifting structure. During the rotation of the rotating unit driven by the drive unit, the mating part and the lifting structure work together to move the coil disc between a first position close to the heating container and a second position far away from the heating container. On the one hand, during the movement of the coil disc relative to the heating container, the magnetic field generated by the coil on the coil disc can move relative to the heating container, causing a change in the intensity of the induced magnetic field of the heating container. That is, during the cooking process, the distance between the coil disc and the heating container is adjusted by the cooperation of the lifting structure and the mating part, thereby adjusting the coupling between the coil disc and the heating container. This allows for a wider range of changes in the induced magnetic field of the heating container, thus adjusting the heating power of the cooking appliance. Consequently, during the cooking process, the temperature transition can be smoothly achieved through changes in heating power, reducing temperature fluctuations and improving the cooking effect. On the other hand, by cooperating with the lifting structure and the mating part, the rotation of the rotating unit is converted into the movement of the coil disc, reducing the occupancy of the drive assembly in the height direction of the cooking appliance, which is beneficial for the miniaturization design of the cooking appliance. Furthermore, at least one of the lifting structure and the mating part is provided with a friction-reducing component. The mating part is at least partially in contact with the lifting structure through the friction-reducing component. During the movement of the mating part relative to the lifting structure, the friction between the mating part and the lifting structure is reduced by the friction-reducing component, thereby reducing the wear between the lifting structure and the mating part and improving the service life of the coil and the drive assembly.

[0007] The cooking appliance provided by this utility model may also have the following additional technical features:

[0008] In some embodiments, the lifting structure optionally includes at least one first protrusion that protrudes toward the mating part. The first protrusion includes a first rising surface and a first falling surface arranged sequentially along the rotation direction of the rotating part. The first rising surface and the first falling surface are inclined relative to the axial direction of the rotating part. During the process of the driving part driving the rotating part to rotate, the mating part can pass through the first rising surface and the first falling surface in sequence to make the coil disk rise and fall.

[0009] In this embodiment, the lifting structure includes at least one first protrusion, which includes a first rising surface and a first falling surface. During the process of the driving part driving the rotating part to rotate, the mating part drives the coil disk to rise through the first rising surface and drives the coil disk to fall through the first falling surface, making the movement of the coil disk more stable and reliable.

[0010] Optionally, during the process of the drive unit driving the rotating unit to rotate, the coil disk may or may not contact the first rising surface and the first falling surface in sequence.

[0011] In some embodiments, the first rising surface may be an arc surface or a plane; and / or the first falling surface may be an arc surface or a plane; and / or the first rising surface and the first falling surface may be smoothly connected along the rotation direction.

[0012] In this embodiment, the first rising surface and / or the first falling surface are planar or curved surfaces. Optionally, the first rising surface and the first falling surface are smoothly connected to improve the smoothness of the coil movement.

[0013] It is understandable that when the lifting structure is located in the rotating part, the ends of the first rising surface and the first falling surface that are close to the coil disk are connected to each other with a smooth transition, while the ends of the first rising surface and the first falling surface that are away from the coil disk are far away from each other.

[0014] Optionally, when there are multiple first protrusions, there are also multiple first rising surfaces and multiple first falling surfaces, which are alternately arranged sequentially along the circumference of the rotating part. Optionally, adjacent first rising surfaces and first falling surfaces are smoothly connected.

[0015] In some embodiments, optionally, when there are multiple first protrusions, the multiple first protrusions are distributed along the rotation direction, and adjacent first protrusions enclose a first recess, and a friction reducing member is provided in at least one of the first protrusions, the first recess, and the mating portion.

[0016] In this embodiment, when there are multiple first protrusions, adjacent first protrusions enclose a first recess, and a friction-reducing element is provided in at least one of the first protrusions, the first recess, and the mating portion to reduce the frictional force generated by the relative movement between them.

[0017] It is understandable that multiple first protrusions and multiple first recesses are alternately arranged along the circumference of the rotating part.

[0018] In some embodiments, the friction-reducing element may optionally include a rolling element that is rotatably disposed on at least one of the mating portion and the lifting structure, the mating portion contacting the first protrusion and the first recess via the rolling element; and / or the friction-reducing element may include a ceramic coating that is applied to at least one of the first protrusion, the first recess, and the mating portion.

[0019] In this embodiment, the friction-reducing component includes a rolling element, which is rollably disposed in at least one of the mating part and the lifting structure. When the driving part drives the rotating part to rotate, the rolling element transforms the planar friction between the mating part and the lifting structure into rolling contact, greatly reducing the frictional force between the mating part and the lifting structure, thereby reducing the wear degree of the mating part and the lifting structure and improving the service life of the cooking appliance. Optionally, the friction-reducing component includes a ceramic coating. The ceramic coating has a low coefficient of friction, so when the mating part contacts the lifting structure through the ceramic coating, the frictional force between the two can be reduced.

[0020] In some embodiments, optionally, when the friction reducing member includes a rolling member, the top of the first protrusion is provided with a limiting groove, and a portion of the rolling member is disposed in the limiting groove and is able to roll within the limiting groove.

[0021] In this embodiment, when the friction-reducing component includes a rolling element, a limiting groove is provided at the top of the first protrusion, and a portion of the rolling element is disposed in the limiting groove, thereby limiting the rolling element and placing the rolling element at the top of the first protrusion. As a result, the lifting structure contacts the mating part through the rolling element, reducing the friction between the two.

[0022] In some embodiments, the rolling element may optionally include a roller, the axis of rotation of which is arranged radially along the rotating portion and contacts the mating portion; or the rolling element may include a ball, a portion of which is embedded in a limiting groove and can roll within the limiting groove.

[0023] In this embodiment, the rolling element includes a roller or a ball. When the rolling element includes a roller, the roller's axis of rotation is arranged radially along the rotating part. When the rotating part rotates, the roller rotates under the action of the mating part, thereby transforming the contact between the mating part and the lifting structure into rolling contact, reducing the friction between them. When the rolling element includes a ball, a portion of the ball is embedded in a limiting groove and can roll within the limiting groove, while another portion of the ball can protrude from the limiting groove and contact the mating part, thereby achieving rolling contact between the mating part and the lifting structure.

[0024] In some embodiments, the rolling element may optionally include any one of a plastic element, a rubber element, and a silicone element.

[0025] In this embodiment, the rolling element includes any one of plastic, rubber, and silicone parts, so that the rolling element can achieve rolling contact between the lifting structure and the mating part, while avoiding being heated by the magnetic field generated by the coil.

[0026] In some embodiments, the mating portion optionally includes: at least one second protrusion, the second protrusion protruding toward the first protrusion, the second protrusion including a second rising surface and a second falling surface arranged sequentially along the rotation direction of the rotating portion, the second rising surface and the second falling surface being inclined relative to the axial direction of the rotating portion; during the process of the driving portion driving the rotating portion to rotate, the lifting structure can sequentially engage with the second rising surface and the second falling surface.

[0027] In this embodiment, the mating part includes at least one second protrusion, which is provided with a second rising surface and a second falling surface. During the process of the driving part driving the rotating part to move, the lifting structure cooperates with the second rising surface and the second falling surface, which ensures that the lifting range of the coil disk is increased and the stability of the coil disk movement is improved.

[0028] In some embodiments, the second rising surface may be an arc surface or a plane; and / or the second falling surface may be an arc surface or a plane; and / or the second rising surface and the second falling surface may be smoothly connected along the rotation direction.

[0029] In this embodiment, the second rising surface and / or the second falling surface are arc surfaces or planes; optionally, the second rising surface and the second falling surface are smoothly connected along the rotation direction, which improves the stability of the coil disk lifting and lowering.

[0030] In some embodiments, optionally, when there are multiple second protrusions, the multiple second protrusions are arranged sequentially along the rotation direction, and adjacent second protrusions enclose a second recess; when the coil is in the first position, the second protrusion is located at the top of the first protrusion, and when the coil is in the second position, the second protrusion is located at the bottom of the first recess.

[0031] In this embodiment, multiple second protrusions and multiple second concave portions are alternately arranged along the rotation direction of the rotating part. The second protrusions and second concave portions alternately cooperate with the first protrusions and first concave portions, which increases the lifting range of the coil, thereby making the range of changes in the induced magnetic field of the heating container larger, increasing the adjustable range of the heating power of the cooking appliance, and also improving the stability of the drive between the coil and the rotating part.

[0032] In some embodiments, optionally, the first protrusion and the first recess are connected sequentially along the rotation direction, or the first protrusion and the first recess are spaced apart along the rotation direction; and / or the second protrusion and the second recess are connected sequentially along the rotation direction, or the second protrusion and the second recess are spaced apart along the rotation direction; and / or the mating part is located in the middle of the coil disk, the coil on the coil disk is located around the mating part, or the mating part is arranged radially towards the side wall of the coil disk, and the mating part surrounds the coil on the coil disk.

[0033] In this embodiment, the first protrusion and the first concave portion are sequentially connected along the rotation direction of the rotating part. This makes the movement of the coil smoother during the rotation of the rotating part and allows the coil to continuously rise and fall with the continuous rotation of the rotating part. Consequently, the induced magnetic field of the heating container changes continuously, increasing the adjustable range of heating power during cooking. Alternatively, the first protrusion and the first concave portion are spaced apart along the rotation direction, so that the rising and falling of the coil is not continuous, achieving intermittent rising and falling of the coil. Correspondingly, the second protrusion and the second concave portion can also be sequentially connected or intermittently arranged. Optionally, the mating portion can be located in the middle of the coil to increase the winding area of ​​the coil; the mating portion can also be located in the radially outer part of the coil to increase the reliability and stability of the transmission.

[0034] In some embodiments, the rotating part may optionally include: a first gear located on one side of the coil disk, a lifting structure disposed on the side of the first gear facing the coil disk; and a second gear connected to the driving part, wherein the first gear meshes with the second gear.

[0035] In this embodiment, the rotating part includes a first gear and a second gear. The lifting structure is located on the side of the first gear facing the coil disk. The driving part is connected to the second gear. The first gear meshes with the second gear. The driving part drives the first gear to rotate through the second gear, thereby realizing the lifting and lowering of the coil disk. This makes the lifting and lowering of the coil disk more stable and reliable. At the same time, by converting rotation into lifting motion through the gear structure, the space occupied by the driving component in the height direction can also be reduced.

[0036] In some embodiments, optionally, the coil disc has a first through hole in the middle, the first gear has a second through hole in the middle, the mating part surrounds the first through hole, and the lifting structure surrounds the second through hole.

[0037] In this embodiment, a first through hole is provided in the middle of the coil, a second through hole is provided in the middle of the first gear, a mating part is provided around the first through hole, and a lifting structure is provided around the second through hole. The provision of the first and second through holes reduces the weight of the coil and the first gear, thereby helping to reduce the overall weight of the cooking appliance.

[0038] In some embodiments, the cooking appliance may optionally include: a support base disposed within the housing, a heating container supported on the support base, and a coil located outside the support base and at the bottom of the support base.

[0039] In this embodiment, the support base is disposed inside the housing to support the heating container, and the coil is located outside the support base and at the bottom of the support base, which reduces the horizontal space occupied by the coil on the cooking appliance.

[0040] In some embodiments, the support base is optionally provided with a plurality of first limiting portions, and the circumference of the coil disk is provided with a plurality of second limiting portions. The first limiting portions and the second limiting portions are disposed opposite to each other and are slidably connected along the axial direction of the rotating part.

[0041] In this embodiment, a plurality of second limiting parts are provided on the periphery of the coil disk. The plurality of second limiting parts correspond to and are slidably connected with a plurality of first limiting parts on the support base, thereby achieving circumferential limiting of the coil disk and preventing the coil disk from rotating.

[0042] In some embodiments, optionally, a coil is wound around the outer wall of the support base, the coil on the support base can surround the heating container, and the coil on the support base can generate a magnetic field to heat the heating container when energized.

[0043] In this embodiment, a coil is wound around the outer wall of the support base, and the coil on the support base surrounds the heating container. When the coil on the support base is energized, the heating container can be heated. That is, both the coil on the coil disk and the coil on the support base can heat the heating container. Optionally, the coil on the coil disk and the coil on the support base can heat the heating container simultaneously, or the coil on the coil disk and the coil on the support base can heat the heating container separately.

[0044] In some embodiments, the distance between the first position and the second position may be greater than 0 mm and less than or equal to 100 mm.

[0045] In this embodiment, the movable range of the coil is set to be greater than 0 mm and less than or equal to 100 mm, which can reduce the impact of the coil's lifting and lowering on the overall height of the cooking appliance, while ensuring the adjustable range of heating power.

[0046] In some embodiments, the cooking appliance may optionally include a control device connected to the drive assembly for controlling the drive assembly to operate in order to adjust the heating power of the cooking appliance by adjusting the distance between the coil and the heating container.

[0047] In this embodiment, the cooking appliance also includes a control device connected to the drive assembly for controlling the operation of the drive assembly. The control device controls the drive assembly to drive the coil to move, thereby adjusting the distance between the coil and the heating container, adjusting the coupling between the coil and the heating container, and thus adjusting the heating power of the cooking appliance.

[0048] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0049] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0050] Figure 1 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0051] Figure 2 A second schematic diagram of the structure of a cooking appliance according to an embodiment of the present invention is shown;

[0052] Figure 3 It shows Figure 2 An enlarged structural diagram of point A of the cooking appliance in the illustrated embodiment;

[0053] Figure 4 The third schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0054] Figure 5 The fourth schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0055] Figure 6 The fifth schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0056] Figure 7 One of the structural schematic diagrams of a coil disk according to an embodiment of the present invention is shown;

[0057] Figure 8 A second schematic diagram of the structure of a coil disk according to an embodiment of the present invention is shown;

[0058] Figure 9 The third schematic diagram shows the structure of the coil disk according to one embodiment of the present invention.

[0059] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0060] 1. Housing; 2. Heating container; 3. Coil; 30. Mating part; 300. Second protrusion; 302. Second recess; 304. Second rising surface; 306. Second falling surface; 32. Second limiting part; 34. First through hole; 4. Drive assembly; 40. Drive part; 42. Rotating part; 420. Lifting structure; 4200. First protrusion; 4202. First recess; 4204. Limiting groove; 4206. First rising surface; 4208. First falling surface; 422. First gear; 4220. Second through hole; 424. Second gear; 5. Gear cover; 6. Support base; 60. First limiting part; 62. Viewing window; 7. Detection assembly; 8. Friction reducing component; 80. Rolling component; 800. Roller; 9. Elastic component. Detailed Implementation

[0061] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0062] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0063] The following reference Figures 1 to 9 This invention describes a cooking appliance proposed according to some embodiments of the present invention.

[0064] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, according to one embodiment of the present invention, a cooking appliance is provided, comprising: a housing 1; a heating container 2, which can be installed on the housing 1; a coil 3, which is movably disposed on the housing 1, with a coil wound on the coil 3, the coil on the coil 3 generating a magnetic field when energized to heat the heating container 2; and a driving assembly 4, comprising a driving part 40 and a rotating part 42, the rotating part 42 being disposed on one side of the coil 3, one of the rotating part 42 and the coil 3 having a mating part 30, and the other having a lifting structure 420, the driving part 40 driving the rotating part 42 to rotate, so that the mating part 30 engages with the lifting structure 420 to drive the coil 3 to move between a first position close to the heating container 2 and a second position away from the heating container 2; wherein, at least one of the mating part 30 and the lifting structure 420 has a friction-reducing element 8, and the mating part 30 at least partially contacts the lifting structure 420 through the friction-reducing element 8.

[0065] The cooking appliance provided by this utility model includes a shell 1, a heating container 2, a coil 3, and a drive assembly 4. The heating container 2 is disposed inside the shell 1, and a coil is wound on the coil 3. When energized, the coil on the coil 3 generates a magnetic field, and the heating container 2 heats up under the influence of the magnetic field of the coil, thus cooking the food inside the heating container 2. The drive assembly 4 includes a drive part 40 and a rotating part 42. The rotating part 42 is disposed on one side of the coil 3, and one of the rotating part 42 and the coil 3 has a mating part 30, while the other has a lifting structure 420. During the process of the drive part 40 driving the rotating part 42 to rotate, the mating part 30 cooperates with the lifting structure 420, thereby driving the coil 3 to move between a first position close to the heating container 2 and a second position away from the heating container 2. On the one hand, during the movement of the coil 3 relative to the heating container 2, the magnetic field generated by the coil on the coil 3 can move relative to the heating container 2, causing a change in the intensity of the induced magnetic field in the heating container 2. That is, during the cooking process of the cooking appliance... By cooperating with the lifting structure 420 and the mating part 30, the distance between the coil 3 and the heating container 2 is adjusted, thereby adjusting the coupling between the coil 3 and the heating container 2. This allows for a wider range of changes in the induced magnetic field of the heating container 2, thus enabling the adjustment of the heating power of the cooking appliance. Consequently, during the cooking process, the temperature transition can be smoothly achieved through changes in heating power, reducing temperature fluctuations and improving the cooking effect. On the other hand, by cooperating with the lifting structure 420 and the mating part 30, the rotation of the rotating part 42 is converted into the movement of the coil 3, reducing the occupancy of the drive component 4 in the height direction of the cooking appliance, which is beneficial for the miniaturization design of the cooking appliance. Furthermore, at least one of the lifting structure 420 and the mating part 30 is provided with a friction reducing member 8. The mating part 30 contacts the lifting structure 420 at least partially through the friction reducing member 8. During the movement of the mating part 30 relative to the lifting structure 420, the friction between the mating part 30 and the lifting structure 420 is reduced by the provision of the friction reducing member 8, thereby reducing the wear between the lifting structure 420 and the mating part 30 and improving the service life of the coil disk 3 and the drive assembly 4.

[0066] It is understandable that the position of the drive coil 3 relative to the heating container 2 changes gradually during the movement of the drive component 4, thus enabling the heating power of the cooking appliance to change gradually. In other words, the movement of the coil 3 allows the heating power of the cooking appliance to be infinitely adjustable, increasing the power adjustable range of the heating container 2. Consequently, during the cooking process, the heating power of the cooking appliance is smoothly adjusted, reducing temperature fluctuations and improving the cooking effect of the food.

[0067] Optionally, during the cooking process, the heating power required for each cooking stage is different. By moving the coil 3 relative to the heating container 2, the temperature between each cooking stage can be smoothly transitioned during continuous heating, thereby improving the cooking effect of the ingredients.

[0068] Optionally, the heating container 2 includes a magnetic pot or a pot body with a magnetic layer.

[0069] Optionally, the drive component 4 can drive the coil disk 3 to stop at any position within the movable range or drive the coil disk 3 to reciprocate within the movable range, thereby achieving stepless and continuous adjustment of the heating power.

[0070] like Figure 5 As shown, in some embodiments, optionally, the lifting structure 420 includes at least one first protrusion 4200, which protrudes toward the mating part 30. The first protrusion 4200 includes a first rising surface 4206 and a first falling surface 4208 arranged sequentially along the rotation direction of the rotating part 42. The first rising surface 4206 and the first falling surface 4208 are inclined relative to the axial direction of the rotating part 42. During the process of the driving part 40 driving the rotating part 42 to rotate, the mating part 30 can pass through the first rising surface 4206 and the first falling surface 4208 in sequence to make the coil disk 3 rise and fall.

[0071] In this embodiment, the lifting structure 420 includes at least one first protrusion 4200. The first protrusion 4200 includes a first rising surface 4206 and a first falling surface 4208. During the process of the driving part 40 driving the rotating part 42 to rotate, the cooperating part 30 drives the coil disk 3 to rise through the first rising surface 4206 and drives the coil disk 3 to fall through the first falling surface 4208, so that the movement of the coil disk 3 is more stable and reliable.

[0072] Optionally, during the process of the drive unit 40 driving the rotating unit 42 to rotate, when the coil disk 3 passes through the first rising surface 4206 and the first falling surface 4208 in sequence, it may or may not come into contact with the first rising surface 4206 and the first falling surface 4208.

[0073] It is understandable that the first rising surface 4206 and the first falling surface 4208 are related to the rotation direction. For example, in the rotation direction... Figure 5 When the middle arrow points in the opposite direction, the first rising surface 4206 and the first falling surface 4208 are opposite.

[0074] In some embodiments, the first rising surface 4206 may be an arc surface or a plane; and / or the first falling surface 4208 may be an arc surface or a plane; and / or the first rising surface 4206 and the first falling surface 4208 may be smoothly connected along the rotation direction.

[0075] In this embodiment, the first rising surface 4206 and / or the first falling surface 4208 are arc surfaces or planes. Optionally, the first rising surface 4206 and the first falling surface 4208 are smoothly connected to improve the smoothness of the movement of the coil disk 3.

[0076] It is understandable that when the lifting structure 420 is located in the rotating part 42, the ends of the first rising surface 4206 and the first falling surface 4208 that are close to the coil disk 3 are connected to each other smoothly, while the ends of the first rising surface 4206 and the first falling surface 4208 that are away from the coil disk 3 are far away from each other.

[0077] Optionally, when there are multiple first protrusions 4200, there are also multiple first rising surfaces 4206 and multiple first falling surfaces 4208, which are alternately arranged sequentially along the circumference of the rotating part 42. Optionally, adjacent first rising surfaces 4206 and first falling surfaces 4208 are smoothly connected.

[0078] In some embodiments, optionally, when there are multiple first protrusions 4200, the multiple first protrusions 4200 are distributed along the rotation direction, and the adjacent first protrusions 4200 enclose a first recess 4202, and the friction reducing member 8 is provided in at least one of the first protrusions 4200, the first recess 4202 and the mating part 30.

[0079] In this embodiment, when there are multiple first protrusions 4200, a first recess 4202 is formed between adjacent first protrusions 4200. The friction reducing member 8 is provided in at least one of the first protrusions 4200, the first recess 4202 and the mating part 30 to reduce the friction force generated by the relative movement between them.

[0080] It is understandable that multiple first protrusions 4200 and multiple first recesses 4202 are alternately arranged along the circumference of the rotating part 42.

[0081] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the friction reducing member 8 includes a rolling member 80, which is rotatably disposed on at least one of the mating portion 30 and the lifting structure 420, the mating portion 30 contacting the first protrusion 4200 and the first recess 4202 through the rolling member 80; and / or the friction reducing member 8 includes a ceramic coating, which is applied to at least one of the first protrusion 4200, the first recess 4202 and the mating portion 30.

[0082] In this embodiment, the friction-reducing component 8 includes a rolling element 80, which is rollably disposed on at least one of the mating portion 30 and the lifting structure 420. When the driving portion 40 drives the rotating portion 42 to rotate, the rolling element 80 transforms the planar friction between the mating portion 30 and the lifting structure 420 into rolling contact, greatly reducing the friction between the mating portion 30 and the lifting structure 420, thereby reducing the wear of the mating portion 30 and the lifting structure 420 and extending the service life of the cooking appliance. Optionally, the friction-reducing component 8 includes a ceramic coating. The ceramic coating has a low coefficient of friction, so when the mating portion 30 contacts the lifting structure 420 through the ceramic coating, the friction between the two can be reduced.

[0083] like Figure 5 As shown, in some embodiments, optionally, when the friction reducing member 8 includes a rolling member 80, the top of the first protrusion 4200 is provided with a limiting groove 4204, and a portion of the rolling member 80 is disposed in the limiting groove 4204 and is able to roll within the limiting groove 4204.

[0084] In this embodiment, when the friction reducing member 8 includes a rolling member 80, a limiting groove 4204 is provided on the top of the first protrusion 4200, and a part of the rolling member 80 is disposed in the limiting groove 4204, thereby limiting the rolling member 80 and making the rolling member 80 located on the top of the first protrusion 4200. As a result, the lifting structure 420 contacts the mating part 30 through the rolling member 80, thereby reducing the friction between the two.

[0085] It is understandable that the position of the rolling element 80 is the highest point of the first protrusion 4200.

[0086] Optionally, during the rotation of the rotating part 42, the lifting structure 420 contacts the mating part 30 through the rolling element 80, while other parts do not contact the mating part 30.

[0087] like Figure 5 As shown, in some embodiments, the rolling element 80 may optionally include a roller 800, the axis of rotation of which is arranged radially along the rotating portion 42 and contacts the mating portion 30; or the rolling element 80 may include a ball, a portion of which is embedded in the limiting groove 4204 and can roll within the limiting groove 4204.

[0088] In this embodiment, the rolling element 80 includes a roller 800 or a ball. When the rolling element 80 includes a roller 800, the axis of rotation of the roller 800 is arranged radially along the rotating portion 42. When the rotating portion 42 rotates, the roller 800 rotates under the action of the mating portion 30, thereby converting the contact between the mating portion 30 and the lifting structure 420 into rolling contact, reducing the friction between them. When the rolling element 80 includes a ball, a portion of the ball is embedded in the limiting groove 4204 and can roll within the limiting groove 4204, while another portion of the ball can protrude from the limiting groove 4204 and contact the mating portion 30, thereby achieving rolling contact between the mating portion 30 and the lifting structure 420.

[0089] In some embodiments, the rolling element 80 may optionally include any one of a plastic element, a rubber element, and a silicone element.

[0090] In this embodiment, the rolling element 80 includes any one of plastic, rubber and silicone, so that the rolling element 80 can achieve rolling contact between the lifting structure 420 and the mating part 30, and can also avoid being heated by the magnetic field generated by the coil.

[0091] like Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, optionally, the mating part 30 includes at least one second protrusion 300, which protrudes toward the first protrusion 4200. The second protrusion 300 includes a second rising surface 304 and a second falling surface 306 arranged sequentially along the rotation direction of the rotating part 42. The second rising surface 304 and the second falling surface 306 are inclined relative to the axial direction of the rotating part 42. During the process of the driving part 40 driving the rotating part 42 to rotate, the lifting structure 420 can sequentially engage with the second rising surface 304 and the second falling surface 306.

[0092] In this embodiment, the mating part 30 includes at least one second protrusion 300. The second protrusion 300 is provided with a second rising surface 304 and a second falling surface 306. During the process of the driving part 40 driving the rotating part 42 to move, the lifting structure 420 cooperates with the second rising surface 304 and the second falling surface 306 to ensure that the lifting range of the coil disk 3 is increased and the stability of the movement of the coil disk 3 is improved.

[0093] It is understandable that the second rising surface 304 and the second falling surface 306 are related to the rotation direction of the rotating part 42. For example, when the rotation direction is... Figure 5 When the middle arrow points in the opposite direction, the second rising surface 304 and the second falling surface 306 are opposite.

[0094] In some embodiments, the second rising surface 304 may be an arc surface or a plane; and / or the second falling surface 306 may be an arc surface or a plane; and / or the second rising surface 304 and the second falling surface 306 may be smoothly connected along the rotation direction.

[0095] In this embodiment, the second rising surface 304 and / or the second falling surface 306 are arc surfaces or planes; optionally, the second rising surface 304 and the second falling surface 306 are smoothly connected along the rotation direction, which improves the stability of the coil disk 3 rising and falling.

[0096] In some embodiments, optionally, when there are multiple second protrusions 300, the multiple second protrusions 300 are arranged sequentially along the rotation direction, and adjacent second protrusions 300 surround the second recess 302; when the coil disk 3 is in the first position, the second protrusion 300 is located at the top of the first protrusion 4200, and when the coil disk 3 is in the second position, the second protrusion 300 is located at the bottom of the first recess 4202.

[0097] In this embodiment, multiple second protrusions 300 and multiple second recesses 302 are alternately arranged along the rotation direction of the rotating part 42. The second protrusions 300 and the second recesses 302 alternately cooperate with the first protrusions 4200 and the first recesses 4202, which increases the lifting range of the coil 3, thereby making the range of changes in the induced magnetic field of the heating container 2 larger, increasing the adjustable range of the heating power of the cooking appliance, and also improving the stability of the drive between the coil 3 and the rotating part 42.

[0098] Optionally, along the axial direction of the rotating part 42, when the first protrusion 4200 contacts the second protrusion 300, the coil disk 3 is located in the first position; when the second protrusion 300 is located at the bottom of the first recess 4202, the first protrusion 4200 is located at the bottom of the second recess 302, and the coil disk 3 is located in the second position.

[0099] In some embodiments, optionally, the first protrusion 4200 and the first recess 4202 are connected sequentially along the rotation direction, or the first protrusion 4200 and the first recess 4202 are spaced apart along the rotation direction; and / or the second protrusion 300 and the second recess 302 are connected sequentially along the rotation direction, or the second protrusion 300 and the second recess 302 are spaced apart along the rotation direction; and / or the mating part 30 is located in the middle of the coil disk 3, the coil on the coil disk 3 is located around the mating part 30, or the mating part 30 is arranged along the radial direction of the rotating part 42 close to the side wall of the coil disk 3, and the mating part 30 surrounds the coil on the coil disk 3.

[0100] In this embodiment, the first protrusion 4200 and the first recess 4202 are sequentially connected along the rotation direction of the rotating part 42. This makes the movement of the coil 3 smoother during the rotation of the rotating part 42, and allows the coil 3 to continuously rise and fall with the continuous rotation of the rotating part 42. Consequently, the induced magnetic field of the heating container 2 continuously changes, increasing the adjustable range of heating power during cooking. Alternatively, the first protrusion 4200 and the first recess 4202 can be spaced apart along the rotation direction, so that the rising and falling of the coil 3 is not continuous, achieving intermittent rising and falling of the coil 3. Correspondingly, the second protrusion 300 and the second recess 302 can also be sequentially connected or intermittently arranged. Optionally, the mating part 30 can be located in the middle of the coil 3 to increase the winding area of ​​the coil; the mating part 30 can also be located in the radially outer part of the coil 3 to increase the reliability and stability of the transmission.

[0101] Optionally, the rotating part 42 along Figure 5 Rotate in the direction indicated by the middle arrow, or along Figure 5 Rotate in the opposite direction indicated by the middle arrow.

[0102] like Figure 4 and Figure 6 As shown, in some embodiments, optionally, the rotating part 42 includes: a first gear 422 located on one side of the coil disk 3, and a lifting structure 420 disposed on the side of the first gear 422 facing the coil disk 3; a second gear 424 connected to the driving part 40, and the first gear 422 meshing with the second gear 424.

[0103] In this embodiment, the rotating part 42 includes a first gear 422 and a second gear 424. The lifting structure 420 is disposed on the side of the first gear 422 facing the coil disk 3. The driving part 40 is connected to the second gear 424. The first gear 422 meshes with the second gear 424. The driving part 40 drives the first gear 422 to rotate through the second gear 424, thereby realizing the lifting of the coil disk 3. This makes the lifting of the coil disk 3 more stable and reliable. At the same time, by converting rotation into lifting motion through the gear structure, the space occupied by the driving component 4 in the height direction can also be reduced.

[0104] Optionally, the drive unit 40 includes a motor.

[0105] like Figure 4 and Figure 6 As shown, optionally, the cooking appliance also includes a gear cover 5, which is disposed on the housing 1, and the first gear 422 is supported on the gear cover 5.

[0106] Optionally, the gear cover 5 is provided with a plurality of support ribs on the side facing the first gear 422, and the first gear 422 contacts the support ribs.

[0107] Optionally, any of the support ribs extends radially along the first gear 422.

[0108] like Figure 4 As shown, in some embodiments, the cooking appliance may optionally include at least one elastic element 9, which is disposed between the gear cover 5 and the first gear 422, and the elastic element 9 is in a compressed state.

[0109] In this embodiment, the elastic element 9 is in a compressed state. Under the action of the elastic element 9, the first gear 422 is in contact with the coil disk 3, which ensures the stability and reliability of the drive assembly 4 driving the coil disk 3.

[0110] In some embodiments, the cooking appliance may optionally include a magnetic shielding cover, which is disposed on the outside of the drive unit 40 to shield the drive unit 40 from magnetic interference.

[0111] In this embodiment, since the drive unit 40 contains a metal material, it is easily heated in a magnetic field. Therefore, the drive unit 40 is covered with a magnetic shield to isolate the magnetic field generated by the coil on the coil disk 3, thereby avoiding the situation where the magnetic field generated by the coil affects the overheating of the drive unit 40 and affects its performance.

[0112] Optionally, the diameter of the second gear 424 is much smaller than the diameter of the first gear 422.

[0113] According to one embodiment of this application, optionally, the rotating part 42 includes a turntable, the lifting structure 420 is disposed on the side of the turntable facing the coil disk 3, and the driving part 40 is connected to the middle of the turntable for driving the turntable to rotate.

[0114] like Figure 5 As shown, in some embodiments, optionally, the coil disk 3 has a first through hole 34 in the middle, the first gear 422 has a second through hole 4220 in the middle, the mating part 30 surrounds the first through hole 34, and the lifting structure 420 surrounds the second through hole 4220.

[0115] In this embodiment, the coil 3 has a first through hole 34 in the middle, the first gear 422 has a second through hole 4220 in the middle, the mating part 30 is surrounded by the first through hole 34, and the lifting structure 420 is surrounded by the second through hole 4220. The arrangement of the first through hole 34 and the second through hole 4220 reduces the weight of the coil 3 and the first gear 422, thereby helping to reduce the overall weight of the cooking appliance.

[0116] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the cooking appliance may optionally include: a support base 6 disposed inside the housing 1, a heating container 2 supported on the support base 6, and a coil 3 located outside the support base 6 and at the bottom of the support base 6.

[0117] In this embodiment, the support base 6 is disposed inside the housing 1 to support the heating container 2, and the coil 3 is located outside the support base 6 and at the bottom of the support base 6, which reduces the horizontal space occupied by the coil 3 on the cooking appliance.

[0118] like Figure 5 and Figure 6 As shown, in some embodiments, optionally, the support base 6 is provided with a plurality of first limiting parts 60, and the coil disk 3 is provided with a plurality of second limiting parts 32 on its periphery. The first limiting parts 60 and the second limiting parts 32 are arranged opposite to each other and are slidably connected along the axial direction of the rotating part 42.

[0119] In this embodiment, a plurality of second limiting parts 32 are provided on the periphery of the coil disk 3. The plurality of second limiting parts 32 correspond to and are slidably connected with a plurality of first limiting parts 60 on the support base 6, thereby achieving circumferential limiting of the coil disk 3 and preventing the coil disk 3 from rotating.

[0120] Optionally, a support is provided in the middle of the support base 6, and the coil disk 3 is sleeved on the support through the first through hole 34 and can move up and down along the support.

[0121] In some embodiments, optionally, a coil is wound around the outer wall of the support 6, and the coil on the support 6 can surround the heating container 2. When the coil on the support 6 is energized, it can generate a magnetic field to heat the heating container 2.

[0122] In this embodiment, a coil is wound around the outer wall of the support base 6. The coil on the support base 6 surrounds the heating container 2. When the coil on the support base 6 is energized, the heating container 2 can be heated. That is, both the coil on the coil disk 3 and the coil on the support base 6 can heat the heating container 2. Optionally, the coil on the coil disk 3 and the coil on the support base 6 can heat the heating container 2 simultaneously, or the coil on the coil disk 3 and the coil on the support base 6 can heat the heating container 2 separately.

[0123] In some embodiments, the bottom wall of the support base 6 is optionally provided with at least one viewing window 62, the viewing window 62 being a light-transmitting structure, and the coil 3 being at least partially disposed opposite to the viewing window 62.

[0124] In this embodiment, the bottom wall of the support base 6 is provided with at least one viewing window 62, and the viewing window 62 is a light-transmitting structure, so that the bottom of the support base 6 is visible through the viewing window 62. The coil 3 is at least partially disposed opposite to the viewing window 62, so that when the heating container 2 is removed, the user can observe the coil 3 through the viewing window 62, thus making the coil 3 visible.

[0125] In some embodiments, the distance between the first position and the second position may be greater than 0 mm and less than or equal to 100 mm.

[0126] In this embodiment, the movable range of the coil 3 is set to be greater than 0 mm and less than or equal to 100 mm, which can reduce the impact of the lifting and lowering of the coil 3 on the overall height of the cooking appliance, and also ensure the adjustable range of heating power.

[0127] Optionally, the coil 3 moves along the vertical direction of the cooking appliance. Specifically, the coil 3 moves along the axis of rotation of the rotating part 42.

[0128] In practical applications, the distance between the first position and the second position is any value among 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, and 100mm, or any value between any two values.

[0129] Optionally, the drive assembly 4 is used to drive the coil disk 3 to reciprocate between the first position and the second position, or to drive the coil disk 3 to move to any position between the first position and the second position.

[0130] In some embodiments, the cooking appliance may optionally include a control device connected to the drive assembly 4 for controlling the operation of the drive assembly 4 to adjust the heating power of the cooking appliance by adjusting the distance between the coil 3 and the heating container 2.

[0131] In this embodiment, the cooking appliance also includes a control device connected to the drive assembly 4 for controlling the operation of the drive assembly 4. The control device controls the drive assembly 4 to drive the coil 3 to move, thereby adjusting the distance between the coil 3 and the heating container 2, adjusting the coupling between the coil 3 and the heating container 2, and thus adjusting the heating power of the cooking appliance.

[0132] Optionally, a detection component 7 is provided on the support base 6, the housing 1, or the support member. The detection component 7 is used to determine the position of the coil 3 based on the magnetic field of the coil 3. The control device is connected to the detection component 7, and then the control device controls the drive component 4 to work based on the information fed back by the detection component 7, so as to realize the adjustment of the position of the coil 3 and the adjustment of the heating power of the cooking appliance.

[0133] Optionally, cooking appliances include electromagnetic heating products, specifically including rice cookers, electric pressure cookers, or electric slow cookers.

[0134] According to one embodiment of this application, the lifting plate (e.g., coil plate 3) is designed with a mating part 30 that cooperates with a large gear (e.g., first gear 422). When the large gear rotates, the lifting structure 420 on the large gear cooperates with the concave and convex positions on the lifting plate to realize the lifting function of the coil plate 3.

[0135] To reduce friction between moving parts and ensure reliable contact, rollers 800 are installed between them, replacing surface contact with point-line contact. Rollers 800 can be installed on either the lifting plate or the large gear, or on both. The number of rollers 800 can be multiple. The rollers 800 are mounted on the limiting groove 4204 and can rotate freely, resulting in low friction.

[0136] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0137] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0138] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooking utensil, characterized in that, include: case; A heating container that can be installed on the housing; A coil disk is movably disposed on the housing, and a coil is wound on the coil disk. When energized, the coil on the coil disk generates a magnetic field that causes the heating container to heat up. A drive assembly includes a drive unit and a rotating unit. The rotating unit is located on one side of the coil disk. One of the rotating unit and the coil disk is provided with a mating part, and the other is provided with a lifting structure. The drive unit is used to drive the rotating unit to rotate, so that the mating part engages with the lifting structure to drive the coil disk to move between a first position close to the heating container and a second position far away from the heating container. In this embodiment, at least one of the mating part and the lifting structure is provided with a friction-reducing component, and the mating part is at least partially in contact with the lifting structure through the friction-reducing component.

2. The cooking utensil according to claim 1, characterized in that, The lifting structure includes at least one first protrusion, which protrudes toward the mating part. The first protrusion includes a first rising surface and a first falling surface arranged sequentially along the rotation direction of the rotating part. The first rising surface and the first falling surface are inclined relative to the axial direction of the rotating part. During the process of the driving part driving the rotating part to rotate, the mating part can pass through the first rising surface and the first falling surface in sequence, so as to make the coil disk rise and fall.

3. The cooking utensil according to claim 2, characterized in that, The first rising surface is an arc surface or a plane; and / or The first descending surface is an arc surface or a plane; and / or The first rising surface and the first falling surface are smoothly connected along the rotation direction.

4. The cooking utensil according to claim 2, characterized in that, When there are multiple first protrusions, the multiple first protrusions are distributed along the rotation direction, and adjacent first protrusions enclose a first recess. The friction-reducing member is provided in at least one of the first protrusions, the first recess, and the mating portion.

5. The cooking utensil according to claim 4, characterized in that, The friction-reducing component includes a rolling element, which is rotatably disposed on at least one of the mating portion and the lifting structure. The mating portion contacts the first protrusion and the first recess through the rolling element. and / or The friction-reducing component includes a ceramic coating, which is applied to at least one of the first protrusion, the first recess, and the mating portion.

6. The cooking utensil according to claim 5, characterized in that, When the friction-reducing component includes a rolling element, a limiting groove is provided on the top of the first protrusion, and a portion of the rolling element is disposed in the limiting groove and is able to roll within the limiting groove.

7. The cooking utensil according to claim 6, characterized in that, The rolling element includes a roller, the axis of rotation of which is arranged radially along the rotating part and contacts the mating part; or The rolling element includes a ball, a portion of which is embedded in the limiting groove and can roll within the limiting groove.

8. The cooking utensil according to claim 6, characterized in that, The rolling element includes any one of plastic, rubber, and silicone components.

9. The cooking utensil according to claim 4, characterized in that, The mating part includes: At least one second protrusion protrudes toward the first protrusion. The second protrusion includes a second rising surface and a second falling surface arranged sequentially along the rotation direction of the rotating part. The second rising surface and the second falling surface are inclined relative to the axial direction of the rotating part. During the process of the driving unit driving the rotating unit to rotate, the lifting structure can sequentially cooperate with the second rising surface and the second falling surface.

10. The cooking utensil according to claim 9, characterized in that, The second rising surface is an arc surface or a plane; and / or The second descending surface is an arc surface or a plane; and / or The second rising surface and the second falling surface are smoothly connected along the rotation direction.

11. The cooking utensil according to claim 9, characterized in that, When there are multiple second protrusions: multiple second protrusions are arranged sequentially along the rotation direction, and adjacent second protrusions enclose a second recess; When the coil is in the first position, the second protrusion is located on top of the first protrusion; when the coil is in the second position, the second protrusion is located at the bottom of the first recess.

12. The cooking utensil according to any one of claims 1 to 11, characterized in that, The rotating part includes: The first gear is located on one side of the coil disk, and the lifting structure is located on the side of the first gear facing the coil disk; The second gear is connected to the drive unit, and the first gear meshes with the second gear.

13. The cooking utensil according to claim 12, characterized in that, The coil disc has a first through hole in the middle, the first gear has a second through hole in the middle, the mating part surrounds the first through hole, and the lifting structure surrounds the second through hole.

14. The cooking utensil according to any one of claims 1 to 11, characterized in that, Also includes: A support base is disposed inside the housing, the heating container is supported on the support base, and the coil is located outside the support base and at the bottom of the support base.

15. The cooking utensil according to claim 14, characterized in that, The support base is provided with a plurality of first limiting parts, and the circumference of the coil disk is provided with a plurality of second limiting parts. The first limiting parts and the second limiting parts are arranged opposite to each other and are slidably connected along the axial direction of the rotating part.

16. The cooking utensil according to claim 14, characterized in that, A coil is wound around the outer wall of the support base. The coil on the support base can surround the heating container. When the coil on the support base is energized, it can generate a magnetic field to heat the heating container.

17. The cooking utensil according to any one of claims 1 to 11, characterized in that, The distance between the first position and the second position is greater than 0 mm and less than or equal to 100 mm.

18. The cooking utensil according to any one of claims 1 to 11, characterized in that, Also includes: A control device, connected to the drive assembly, is used to control the operation of the drive assembly to adjust the heating power of the cooking appliance by adjusting the distance between the coil and the heating container.

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