Cooking utensil

Abstract

The utility model provides a cooking utensil. The cooking utensil comprises a shell; the supporting seat is arranged in the shell; the heating container can be mounted on the supporting seat; the coil panel is arranged in 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 of electrification; the driving assembly makes contact with the coil panel and is used for driving the coil panel to move relative to the heating container so as to adjust the heating power of the cooking utensil in the cooking process of the cooking utensil; and the pre-tightening piece is used for pushing the coil panel to be in contact with the driving assembly. According to the cooking utensil provided by the utility model, under the action of the pre-tightening piece, the contact parts between the coil panel and the driving assembly are attached to each other, so that the stability and the reliability of the driving assembly for driving the coil panel are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, specifically relates to a cooking utensil. BACKGROUND

[0002] In the related art, the coil disc in the cooking utensil can move relative to the heating container to adjust the heating power of the cooking utensil, but the coil disc may tilt or fail to make contact during movement, which changes the positional relationship between the coil disc and the heating container and affects the cooking effect of the cooking utensil. SUMMARY

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

[0004] To this end, the utility model provides a cooking utensil.

[0005] Therefore, the utility model provides a cooking utensil, which comprises a shell, a support seat arranged in the shell, a heating container capable of being mounted on the support seat, a coil disc arranged in the shell, a coil wound on the coil disc, the coil on the coil disc generating a magnetic field to heat the heating container when powered, a driving assembly in contact with the coil disc and used to drive the coil disc to move relative to the heating container to adjust the heating power of the cooking utensil during cooking, and at least one pre-tightening piece used to push the coil disc into contact with the driving assembly.

[0006] The cooking utensil provided by the utility model comprises a shell, a support seat, a heating container, at least one pre-tightening piece, a coil disc, and a driving assembly, the support seat is arranged in the shell and used to support the heating container, a coil is wound on the coil disc, the coil on the coil disc can generate a magnetic field when powered, the heating container is heated under the action of the magnetic field of the coil, and the cooking of food in the heating container is realized. The driving assembly is in contact with the coil disc and can drive the coil disc to move relative to the heating container, so that the magnetic field generated by the coil on the coil disc moves relative to the heating container, thereby changing the intensity of the induced magnetic field of the heating container and changing the heating power of the cooking utensil during cooking. In this way, the temperature can be smoothly transitioned by changing the heating power during cooking, the temperature fluctuation range during cooking is reduced, and the cooking effect of food is improved. Meanwhile, the pre-tightening piece is used to push the coil disc into contact with the driving assembly, and the contact part between the coil disc and the driving assembly is fitted under the action of the pre-tightening piece, which ensures the stability and reliability of the driving of the coil disc by the driving assembly and avoids the occurrence of mechanism failure.

[0007] Optionally, the pre-tightening piece is in a pre-tightening state, so that the contact part of the coil disc and the driving assembly is tightly fitted.

[0008] Optionally, the pre-tightening member is arranged between the support base and the coil disc and presses the coil disc towards the driving assembly; and / or the pre-tightening member is arranged between the housing and the coil disc, on a side of the coil disc away from the driving assembly and presses the coil disc towards the driving assembly; and / or the pre-tightening member is arranged on a side of the coil disc close to the driving assembly and pulls the coil disc towards the driving assembly.

[0009] Optionally, the pre-tightening member can be movably arranged between the coil disc and the support base; and / or the pre-tightening member can be fixedly arranged on the coil disc and / or the support base and / or the housing.

[0010] According to the cooking utensil provided in the utility model, the following additional technical features can be further provided:

[0011] In some embodiments, the pre-tightening member is arranged between the support base and the coil disc and is in a compressed state.

[0012] In this embodiment, the pre-tightening member is arranged between the support base and the coil disc, so that the pre-tightening member can also limit the maximum stroke of the coil disc, thereby avoiding the situation that the coil disc abnormally moves and collides with the support base to cause damage to the support base, the coil disc or other components when the driving assembly malfunctions.

[0013] Optionally, the support base is arranged on the top of the coil disc, the driving assembly is connected to a side of the coil disc away from the support base, and at least one pre-tightening member in a compressed state is arranged between the support base and the coil disc.

[0014] In some embodiments, the side of the support base facing the coil disc is provided with a limiting column, and the coil disc is sleeved on the limiting column, wherein a limiting groove is arranged on the coil disc and surrounds the limiting column, and the at least one pre-tightening member is sleeved on the limiting column and arranged in the limiting groove.

[0015] In this embodiment, the coil disc is sleeved on the limiting column of the support base, so that the relative position between the coil disc and the support base is ensured, and the relative position between the coil disc and the heating container is ensured, thereby ensuring the reliability of heating; the limiting groove surrounding the limiting column is arranged on the coil disc, the at least one pre-tightening member is sleeved on the limiting column and arranged in the limiting groove, so that the reliability of the position of the pre-tightening member is ensured, thereby ensuring the stability of the driving force of the pre-tightening member on the coil disc, so that the coil disc reliably moves.

[0016] In some embodiments, the pre-tightening member is provided with a magnetic isolation coating, or a magnetic isolation sleeve is sleeved on the outside of the pre-tightening member, or the pre-tightening member comprises a magnetic isolation pre-tightening member.

[0017] In this embodiment, in order to avoid the pretensioner being heated in the magnetic field and affecting its service life, the pretensioner is set as a magnetically shielded pretensioner, so that the pretensioner itself is made of magnetically shielded material, or a magnetically shielded coating is applied to the outside of the pretensioner, or a magnetically shielded sleeve is fitted on the outside of the pretensioner to achieve magnetic shielding of the pretensioner.

[0018] In some embodiments, the pretensioner may optionally include any one of a spring, a silicone component, or a rubber component.

[0019] In this embodiment, the preload can be a spring or a flexible structural component such as a silicone or rubber component.

[0020] In some embodiments, the drive assembly can optionally drive the coil disc to move up and down between a first position close to the heating container and a second position away from the heating container, and the preload can push the coil disc back to the second position.

[0021] In this embodiment, the driving component drives the coil to rise and fall, allowing the coil to move between a first position close to the heating container and a second position far from the heating container. This adjusts the distance between the coil and the heating container, resulting in a wider range of induced magnetic field variations in the heating container and increasing the adjustable range of heating power. Simultaneously, the preload allows the coil to rise slowly and steadily, and to return to the second position, ensuring the reliability of the coil's position. Furthermore, the preload, after being compressed to a certain length, cannot be further compressed, thus limiting the maximum height of the coil and preventing it from rising further from the highest position, thereby ensuring structural safety.

[0022] 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.

[0023] In this embodiment, the lifting 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 lifting of the coil on the overall height of the cooking appliance, while ensuring the adjustable range of heating power.

[0024] In some embodiments, the drive assembly may optionally include: a motor connected to the housing; a first gear located at the bottom of the coil disc, the first gear having a first mating portion and the coil disc having a second mating portion, a preload member for pushing the first mating portion into contact with the second mating portion; and a second gear connected to the motor, located on one radial side of the first gear and meshing with the first gear, the motor driving the first gear to rotate via the second gear to drive the coil disc to rise and fall relative to the heating container via the first and second mating portions.

[0025] In this embodiment, the drive assembly includes a motor, a first gear, and a second gear. The second gear is connected to the motor and is located on one radial side of the first gear, meshing with it. A first mating part is provided on the first gear, and a second mating part is provided on the coil disc. The first and second mating parts are in contact. When the motor drives the second gear to rotate, the meshing of the first and second gears causes the first gear to rotate, which in turn causes the first mating part to rotate relative to the second mating part, thus raising and lowering the second mating part, and consequently, raising and lowering the coil disc. The cooking appliance proposed in this application, through the transmission of the first and second gears and the engagement of the first and second mating parts, achieves the conversion of power from rotation to linear lifting and lowering, improving the stability of power transmission. Furthermore, the fact that the second gear is located on one side of the first gear reduces the axial space occupied, thereby lowering the overall height of the cooking appliance.

[0026] In some embodiments, optionally, one of the first mating portion and the second mating portion includes a first protrusion and a first recess, the first protrusion and the first recess are alternately arranged along the rotation direction of the first gear, and the other of the first mating portion and the second mating portion can alternately engage with the first protrusion and the first recess to make the coil disk move up and down between the first position and the second position.

[0027] In this embodiment, the first mating part and the second mating part achieve the switching between rotational and linear movement through a concave-convex structure. One of the first and second mating parts includes a first convex part and a first concave part. As the first mating part rotates with the first gear, the other of the first and second mating parts alternately passes through the first convex part and the first concave part, thereby realizing the reciprocating lifting and lowering of the coil. When the other of the first and second mating parts engages with the first convex part, the first and second mating parts together lift the coil, bringing it closer to the heating container. When the other of the first and second mating parts engages with the first concave part, the coil descends, moving it away from the heating container.

[0028] In some embodiments, optionally, the other of the first mating portion and the second mating portion further includes a second protrusion and a second recess, the second protrusion and the second recess being alternately arranged along the rotation direction of the first gear.

[0029] In this embodiment, the other of the first mating part and the second mating part further includes a second protrusion and a second concave part. The second protrusion and the second concave part are alternately arranged along the rotation direction of the first gear, so that the second protrusion and the second concave part alternately cooperate with the first protrusion and the first concave part, which increases the lifting range of the coil, thereby increasing the adjustable range of the heating power of the cooking appliance and improving the stability of the drive between the coil and the first gear.

[0030] 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 second mating part is located in the middle of the coil disk, the coil on the coil disk is located around the second mating part, or the second mating part is arranged along the radial direction of the first gear close to the side wall of the coil disk, and the second mating part surrounds the coil on the coil disk.

[0031] In this embodiment, the first protrusion and the first concave portion are sequentially connected along the rotation direction of the first gear. This makes the movement of the coil smoother during the rotation of the moving part and allows the coil to continuously rise and fall with the continuous rotation of the first gear. Consequently, the induced magnetic field of the heating container continuously changes, increasing the adjustable range of heating power during cooking. Alternatively, the first protrusion and the first concave portion can be spaced apart along the rotation direction, making the rising and falling of the coil non-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 second mating portion can be located in the middle of the coil to increase the winding area of ​​the coil; the second mating portion can also be located in the radially outer part of the coil to increase the reliability and stability of the transmission.

[0032] In some embodiments, the cooking appliance may optionally further include: a rolling element disposed on at least one of the first mating portion and the second mating portion, the first mating portion and the second mating portion being in contact through the rolling element.

[0033] In this embodiment, the cooking appliance also includes a rolling element. The first mating part and the second mating part contact each other through the rolling element, so that the sliding friction between the first mating part and the second mating part is converted into rolling friction, thereby reducing the frictional resistance between the first mating part and the second mating part.

[0034] In some embodiments, optionally, one of the first mating portion and the second mating portion is provided with a groove, a portion of the rolling element is embedded in the groove and can roll in the groove, and another portion protrudes out of the groove and contacts the other of the first mating portion and the second mating portion.

[0035] In this embodiment, one of the first mating part and the second mating part is provided with a groove, a part of the rolling element is disposed in the groove, and the other part of the rolling element protrudes from the groove and contacts the other of the first mating part and the second mating part, thereby improving the connection strength between the rolling element and the first mating part or the second mating part and preventing the rolling element from falling off.

[0036] In some embodiments, the rolling element may optionally include any one of a metal element, a silicone element, or a rubber element.

[0037] In this embodiment, the rolling element can be a metal part to increase its strength, reduce its wear, and extend the lifespan of the cooking appliance. The rolling element can also be a silicone or rubber part, as silicone or rubber parts are wear-resistant and can further increase the rolling element's lifespan.

[0038] In some embodiments, the support base is optionally provided with a first limiting part, and the coil is provided with a second limiting part, with the first limiting part and the second limiting part slidingly engaged.

[0039] In this embodiment, the coil disk and the support base are slidably engaged by the first limiting part and the second limiting part, so that the coil disk can be raised and lowered relative to the heating container under the drive of the driving component, thus ensuring the reliability of the relative position of the coil disk and the support base.

[0040] 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; and / or the coil is disposed at the bottom of the support base and / or the coil is disposed on the side of the support base.

[0041] In this embodiment, a coil is wound on 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 plate and the coil on the support base can heat the heating container. Optionally, the coil on the coil plate and the coil on the support base can heat the heating container simultaneously, or they can heat the container separately. Optionally, the coil plate is located at the bottom of the support base to avoid occupying the side space of the cooking appliance and facilitate the storage of the cooking appliance; and / or the coil plate is located on the side of the support base to improve the uniformity of heating of various parts inside the heating container and to improve cooking efficiency.

[0042] In some embodiments, optionally, when there are multiple pretensioners, the multiple pretensioners are distributed around the circumference of the coil.

[0043] In this embodiment, when there are multiple pretensioners, the multiple pretensioners are distributed around the circumference of the coil disk, thereby making the thrust or driving force on each position of the coil disk more balanced, and making the movement of the coil disk more stable.

[0044] 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

[0045] 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:

[0046] Figure 1 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0047] Figure 2 It shows Figure 1 A sectional view of the cooking appliance in the embodiment shown from direction AA;

[0048] Figure 3 It shows Figure 2 An enlarged structural diagram of section B of the cooking appliance in the embodiment shown;

[0049] Figure 4 The second schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0050] Figure 5 The third schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0051] Figure 6 The fourth schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0052] Figure 7 The fifth schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0053] Figure 8 The sixth schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention;

[0054] Figure 9 A schematic diagram of the structure of a coil disk according to an embodiment of the present invention is shown.

[0055] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0056] 1. Housing, 2. Support base, 20. Limiting post, 22. First limiting part, 3. Coil disc, 30. Second mating part, 300. Second protrusion, 302. Second recess, 32. Limiting groove, 34. Second limiting part, 4. Pre-tightening member, 5. Drive assembly, 50. Motor, 52. First gear, 520. First mating part, 5200. First protrusion, 5202. First recess, 5204. Groove, 54. Second gear, 6. Rolling element, 7. Heating container. Detailed Implementation

[0057] 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.

[0058] 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.

[0059] The following reference Figures 1 to 9 This invention describes a cooking appliance proposed according to some embodiments of the present invention.

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, according to one embodiment of the present invention, the present invention provides a cooking appliance, including: a housing 1, a support base 2, a heating container 7, a coil 3, at least one pre-tightening member 4, and a drive assembly 5.

[0061] The support base 2 is located inside the housing 1; the heating container 7 can be installed on the support base 2; the coil 3 is located inside the housing 1, and a coil is wound on the coil 3. When the coil on the coil 3 is energized, it generates a magnetic field that causes the heating container 7 to heat up; the drive assembly 5 is in contact with the coil 3 and is used to drive the coil 3 to move relative to the heating container 7 so as to adjust the heating power of the cooking appliance during the cooking process; at least one pre-tightening member 4 is used to push the coil 3 into contact with the drive assembly 5.

[0062] The cooking appliance provided by this utility model includes a shell 1, a support base 2, a heating container 7, at least one pre-tightening member 4, a coil 3, and a drive assembly 5. The support base 2 is disposed inside the shell 1 to support the heating container 7. A coil is wound on the coil 3. When the coil on the coil 3 is energized, the coil on the coil 3 can generate a magnetic field. The heating container 7 heats up under the action of the magnetic field of the coil, thus cooking the food inside the heating container 7. The drive assembly 5 is in contact with the coil 3 and can drive the coil 3 to move relative to the heating container 7. This causes the magnetic field generated by the coil on the coil 3 to move relative to the heating container 7, thereby changing the intensity of the induced magnetic field in the heating container 7. This, in turn, allows for changes in the heating power of the cooking appliance during the cooking process. In this way, the temperature transition can be smoothly achieved through changes in heating power during the cooking process, reducing the temperature fluctuation range during cooking and improving the cooking effect of the food. Meanwhile, at least one pre-tightening member 4 is used to push the coil disk 3 into contact with the drive assembly 5. Under the action of the pre-tightening member 4, the contact portion between the coil disk 3 and the drive assembly 5 is made to fit together, ensuring the stability and reliability of the drive assembly 5 driving the coil disk 3 and avoiding the occurrence of mechanism failure.

[0063] Optionally, the pre-tightening member 4 is in a pre-tightened state, thereby making the part of the coil disk 3 that contacts the drive assembly 5 fit tightly together.

[0064] Optionally, the pretensioner 4 is disposed between the support base 2 and the coil disk 3, and presses the coil disk 3 toward the drive assembly 5; and / or the pretensioner 4 is disposed between the housing and the coil disk 3, located on the side of the coil disk 3 away from the drive assembly 5, and presses the coil disk 3 toward the drive assembly 5; and / or the pretensioner 4 is located on the side of the coil disk 3 close to the drive assembly 5, and pulls the coil disk 3 toward the drive assembly 5.

[0065] Optionally, the pretensioner 4 can be movably disposed between the coil disc 3 and the support base 2; and / or between the housing and the coil disc 3, or it can be fixedly installed on the coil disc 3 and / or the support base 2 and / or the housing.

[0066] It should be noted that the movement of the coil disk 3 relative to the heating container 7 can adjust the distance between at least a portion of the coil disk 3 and the heating container 7, thereby adjusting the power of the heating container 7. Specifically, the movement of the coil disk 3 can be lifting or lowering relative to the heating container 7 to move closer to or further away from the heating container 7, or it can be flipping or shaking relative to the heating container 7 to change the distance between at least a portion of the coil disk 3 and the heating container 7, or it can be translating relative to the heating container 7 to adjust the positional relationship between the coil on the coil disk 3 and the heating container 7.

[0067] It is understandable that during the movement of the drive component 5 relative to the heating container 7, the position of the drive coil 3 changes gradually. Therefore, the heating power of the cooking appliance changes gradually. That is, through the movement of the coil 3, the heating power of the cooking appliance can be infinitely adjusted, increasing the power adjustable range of the heating container 7. As a result, 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.

[0068] 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 7, the temperature between each cooking stage can be smoothly transitioned during continuous heating, thereby improving the cooking effect of the ingredients.

[0069] Optionally, the heating container 7 includes a magnetic pot or a pot body with a magnetic layer.

[0070] Optionally, the drive component 5 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 adjustment of the heating power.

[0071] In some embodiments, the pretensioner 4 is optionally disposed between the support base 2 and the coil 3, and the pretensioner 4 is in a compressed state.

[0072] In this embodiment, the pretensioner 4 is disposed between the support base 2 and the coil disk 3, so that the pretensioner 4 can also limit the maximum stroke of the coil disk 3, so as to avoid the situation where the coil disk 3 moves abnormally and collides with the support base 2 when the drive assembly 5 malfunctions, causing damage to the support base 2, the coil disk 3 or other components.

[0073] It is understandable that the preload 4 has a maximum compression amount, which in turn makes the preload 4 have the smallest size under the maximum compression amount, so that the coil 3 and the support 2 can maintain a certain distance and avoid the situation where they collide or are squeezed and damaged.

[0074] Optionally, the two ends of the pretensioner 4 are fixed to the outer bottom wall of the coil disk 3 and the support base 2 respectively, or the two ends of the pretensioner 4 are in contact with the outer bottom wall of the coil disk 3 and the support base 2 respectively.

[0075] Optionally, a limiting structure is provided between the coil disk 3 and the support base 2, so that the coil disk 3 can move relative to the support base 2 through the limiting structure.

[0076] like Figure 3 and Figure 9As shown, in some embodiments, optionally, the support base 2 is provided with a limiting post 20 on the side facing the coil disk 3, the coil disk 3 is sleeved on the limiting post 20, wherein the coil disk 3 is provided with a limiting groove 32, the limiting groove 32 surrounds the limiting post 20, and at least one pre-tightening member 4 is sleeved on the limiting post 20 and located in the limiting groove 32.

[0077] In this embodiment, the coil disk 3 is sleeved on the limiting post 20 of the support base 2, which ensures the relative position between the coil disk 3 and the support base 2, and thus ensures the relative position between the coil disk 3 and the heating container 7, ensuring the reliability of heating; the coil disk 3 is provided with a limiting groove 32 surrounding the limiting post 20, and at least one pre-tightening member 4 is sleeved on the limiting post 20 and set in the limiting groove 32, which ensures the reliability of the position of the pre-tightening member 4, and thus ensures the stability of the driving force of the pre-tightening member 4 on the coil disk 3, so that the coil disk 3 can move reliably.

[0078] Optionally, the coil disk 3 has a through hole in the middle, and the coil disk 3 is sleeved on the limiting post 20 through the through hole.

[0079] In some embodiments, the pretensioner 4 may optionally have a magnetic shielding coating, or the outer side of the pretensioner 4 may be fitted with a magnetic shielding sleeve, or the pretensioner 4 may include a magnetic shielding pretensioner.

[0080] In this embodiment, in order to avoid the pretensioner 4 being heated in the magnetic field and affecting its service life, the pretensioner 4 is set as a magnetically shielded pretensioner, so that the pretensioner 4 itself is made of magnetically shielded material, or a magnetically shielded coating is applied to the outside of the pretensioner 4, or a magnetically shielded sleeve is fitted on the outside of the pretensioner 4 to achieve magnetic shielding of the pretensioner 4.

[0081] In some embodiments, the pretensioner 4 may optionally include any one of a spring, a silicone component, or a rubber component.

[0082] In this embodiment, the preload 4 can be a spring or a flexible structural component such as a silicone or rubber component.

[0083] In some embodiments, the drive assembly 5 can optionally drive the coil 3 to move up and down between a first position close to the heating container 7 and a second position away from the heating container 7, and the preload 4 can push the coil 3 back to the second position.

[0084] In this embodiment, the driving component 5 drives the coil 3 to rise and fall, allowing the coil 3 to move between a first position close to the heating container 7 and a second position far from the heating container 7. This adjusts the distance between the coil 3 and the heating container 7, resulting in a wider range of induced magnetic field variations in the heating container 7 and increasing the adjustable range of heating power. Simultaneously, the pre-tightening member 4 ensures the coil 3 rises slowly and steadily, and returns it to the second position, guaranteeing the reliability of the coil 3's position. Furthermore, the pre-tightening member 4, after being compressed to a certain length, cannot be further compressed, thus limiting the highest position of the coil 3 and preventing it from rising further at the highest position, thereby ensuring structural safety.

[0085] Optionally, the drive assembly 5 and the coil disk 3 are in contact connection. The drive assembly 5 can drive the coil disk 3 to rise from the second position to the first position. When the coil disk 3 is lowered at the part where the drive assembly 5 and the coil disk 3 cooperate, the coil disk 3 will fall to the second position under its own weight and the action of the pre-tightening member 4. That is, the setting of the pre-tightening member 4 can not only achieve reliable contact between the coil disk 3 and the drive assembly 5, but also achieve the reset of the coil disk 3, thereby ensuring the reliability of the mechanism.

[0086] Optionally, the lifting of the coil 3 can be a linear movement along the vertical direction, or a swaying lifting, a spiral lifting, or a lifting at a certain angle to the vertical direction.

[0087] 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.

[0088] In this embodiment, the lifting 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 of the coil 3 on the overall height of the cooking appliance, and also ensure the adjustable range of heating power.

[0089] 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.

[0090] Optionally, the drive assembly 5 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.

[0091] like Figure 2 ,Figure 3 , Figure 4 and Figure 7 As shown, in some embodiments, optionally, the drive assembly 5 includes: a motor 50 connected to the housing 1; a first gear 52 located at the bottom of the coil disk 3, the first gear 52 having a first mating part 520, the coil disk 3 having a second mating part 30, and a preload member 4 for pushing the first mating part 520 into contact with the second mating part 30; and a second gear 54 connected to the motor 50, located on one radial side of the first gear 52 and meshing with the first gear 52, the motor 50 driving the first gear 52 to rotate through the second gear 54, so as to drive the coil disk 3 to rise and fall relative to the heating container 7 through the first mating part 520 and the second mating part 30.

[0092] In this embodiment, the drive assembly 5 includes a motor 50, a first gear 52, and a second gear 54. The second gear 54 is connected to the motor 50 and is located on one radial side of the first gear 52, meshing with it. The first gear 52 has a first mating part 520, and the coil 3 has a second mating part 30. The first mating part 520 and the second mating part 30 are in contact. When the motor 50 drives the second gear 54 to rotate, the first gear 52 rotates through the meshing of the first gear 52 and the second gear 54. Consequently, the first mating part 520 rotates relative to the second mating part 30, causing the second mating part 30 to rise and fall, thereby raising and lowering the coil 3. The cooking appliance proposed in this application, through the transmission of the first gear 52 and the second gear 54 and the engagement of the first mating part 520 and the second mating part 30, achieves the conversion of power from rotation to linear lifting and lowering, improving the stability of power transmission. Furthermore, the fact that the second gear 54 is located on one side of the first gear 52 reduces the axial space occupied, thereby lowering the overall height of the cooking appliance.

[0093] It is understandable that, along the rotation axis of the first gear 52, the coil disk 3 is located between the support base 2 and the first gear 52, and the coil disk 3 moves up and down between the first position and the second position along the rotation axis of the first gear 52; the preload 4 is located between the support base 2 and the coil disk 3, and thus the preload 4 can push the second mating part 30 on the coil disk 3 to fit with the first mating part 520 on the first gear 52, ensuring the reliability of power transmission.

[0094] Optionally, the motor 50 is fixed inside the housing 1. Optionally, a magnetic shield is provided on the outside of the motor 50 to prevent the components on the motor 50 from overheating in the magnetic field, which could affect their lifespan or working efficiency.

[0095] like Figure 5 and Figure 6As shown, in some embodiments, optionally, one of the first mating portion 520 and the second mating portion 30 includes a first protrusion 5200 and a first recess 5202, the first protrusion 5200 and the first recess 5202 are alternately arranged along the rotation direction of the first gear 52, and the other of the first mating portion 520 and the second mating portion 30 can alternately engage with the first protrusion 5200 and the first recess 5202 to make the coil disk 3 rise and fall between the first position and the second position.

[0096] In this embodiment, the first mating part 520 and the second mating part 30 achieve switching from rotation to linear movement through a concave-convex structure. One of the first mating parts 520 and 30 includes a first protrusion 5200 and a first concave part 5202. As the first mating part 520 rotates with the first gear 52, the other of the first mating part 520 and the other of the second mating part 30 alternately passes through the first protrusion 5200 and the first concave part 5202, thereby realizing the reciprocating lifting and lowering of the coil 3. When the other of the first mating part 520 and the other of the second mating part 30 engages with the first protrusion 5200, the first mating part 5200 and the first protrusion 5200 lift the coil 3, bringing it closer to the heating container 7. When the other of the first mating part 520 and the other of the second mating part 30 engages with the first concave part 5202, the coil 3 descends, moving it away from the heating container 7.

[0097] like Figure 5 and Figure 6 As shown, in some embodiments, optionally, the other of the first mating portion 520 and the second mating portion 30 further includes a second protrusion 300 and a second recess 302, the second protrusion 300 and the second recess 302 being alternately arranged along the rotation direction of the first gear 52.

[0098] In this embodiment, the other of the first mating part 520 and the second mating part 30 further includes a second protrusion 300 and a second recess 302. The second protrusion 300 and the second recess 302 are alternately arranged along the rotation direction of the first gear 52. Thus, the second protrusion 300 and the second recess 302 alternately cooperate with the first protrusion 5200 and the first recess 5202, which increases the lifting range of the coil 3, thereby increasing the adjustable range of the heating power of the cooking appliance and improving the stability of the drive between the coil 3 and the first gear 52.

[0099] Optionally, along the axial direction of the first gear 52, when the first protrusion 5200 contacts the second protrusion 300, the coil disk 3 is located in the first position; when the second concave portion 302 contacts the first protrusion 5200 and the second protrusion 300 contacts the first concave portion 5202, the coil disk 3 is located in the second position.

[0100] In some embodiments, optionally, the first protrusion 5200 and the first recess 5202 are connected sequentially along the rotation direction, or the first protrusion 5200 and the first recess 5202 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 second mating part 30 is located in the middle of the coil disk 3, the coil on the coil disk 3 is located around the second mating part 30, or the second mating part 30 is arranged along the radial direction of the first gear 52 close to the side wall of the coil disk 3, and the second mating part 30 surrounds the coil on the coil disk 3.

[0101] In this embodiment, the first protrusion 5200 and the first recess 5202 are sequentially connected along the rotation direction of the first gear 52. This makes the movement of the coil 3 smoother during the rotation of the moving part and allows the coil 3 to continuously rise and fall with the continuous rotation of the first gear 52. Consequently, the induced magnetic field of the heating container 7 continuously changes, increasing the adjustable range of heating power during cooking. Alternatively, the first protrusion 5200 and the first recess 5202 can be spaced apart along the rotation direction, making the rising and falling of the coil 3 non-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 second mating part 30 can be located in the middle of the coil 3 to increase the winding area of ​​the coil; the second mating part 30 can also be located radially outward of the coil 3 to increase the reliability and stability of the transmission.

[0102] It should be noted that the rotation direction of the first gear 52 can be... Figure 5 The direction indicated by the middle arrow can also be the opposite direction indicated by the arrow.

[0103] like Figure 3 and Figure 5 As shown, in some embodiments, the cooking appliance may optionally include a rolling element 6 disposed in at least one of the first mating portion 520 and the second mating portion 30, the first mating portion 520 and the second mating portion 30 being in contact through the rolling element 6.

[0104] In this embodiment, the cooking appliance also includes a rolling element 6. The first mating part 520 and the second mating part 30 contact each other through the rolling element 6, so that the sliding friction between the first mating part 520 and the second mating part 30 is converted into rolling friction, thereby reducing the frictional resistance between the first mating part 520 and the second mating part 30.

[0105] like Figure 5 and Figure 6As shown, in some embodiments, optionally, one of the first mating part 520 and the second mating part 30 is provided with a groove 5204, a portion of the rolling element 6 is embedded in the groove 5204 and can roll in the groove 5204, and another portion protrudes out of the groove 5204 and contacts the other of the first mating part 520 and the second mating part 30.

[0106] In this embodiment, one of the first mating part 520 and the second mating part 30 is provided with a groove 5204. A part of the rolling element 6 is disposed in the groove 5204, and another part of the rolling element 6 protrudes out of the groove 5204 and contacts the other of the first mating part 520 and the second mating part 30, thereby improving the connection strength between the rolling element 6 and the first mating part 520 or the second mating part 30 and preventing the rolling element 6 from falling off.

[0107] Optionally, the first protrusion 5200 is provided with a groove 5204, and a portion of the rolling element 6 is embedded in the groove 5204.

[0108] In some embodiments, the rolling element 6 may optionally include any one of a metal element, a silicone element, or a rubber element.

[0109] In this embodiment, the rolling element 6 can be a metal part to increase its strength, reduce its wear, and extend the lifespan of the cooking appliance. The rolling element 6 can also be a silicone or rubber part, as silicone or rubber parts are wear-resistant and can further increase its lifespan.

[0110] Optionally, when the rolling element 6 includes a metal part, the outer side of the rolling element 6 is coated with a magnetic shielding layer.

[0111] like Figure 6 and Figure 7 As shown, in some embodiments, optionally, the support base 2 is provided with a first limiting part 22, and the coil disk 3 is provided with a second limiting part 34, with the first limiting part 22 and the second limiting part 34 slidingly engaged.

[0112] In this embodiment, the coil disk 3 and the support base 2 are slidably engaged by the first limiting part 22 and the second limiting part 34, so that the coil disk 3 can be raised and lowered relative to the heating container 7 under the drive of the driving component 5, thus ensuring the reliability of the relative position of the coil disk 3 and the support base 2.

[0113] Optionally, one of the first limiting part 22 and the second limiting part 34 is a slide groove, and the other is a slider. The slider is disposed in the slide groove and can slide relative to the slide groove.

[0114] In some embodiments, optionally, a coil is wound around the outer wall of the support base 2, the coil on the support base 2 can surround the heating container 7, and the coil on the support base 2 can generate a magnetic field to heat the heating container 7 when energized; and / or the coil disk 3 is provided at the bottom of the support base 2 and / or the coil disk 3 is provided on the side of the support base 2.

[0115] In this embodiment, a coil is wound on the support base 2, and the coil on the support base 2 surrounds the heating container 7. When the coil on the support base 2 is energized, the heating container 7 can be heated. That is, both the coil on the coil disc 3 and the coil on the support base 2 can heat the heating container 7. Optionally, the coil on the coil disc 3 and the coil on the support base 2 can heat the heating container 7 simultaneously, or they can heat the heating container 7 separately. Optionally, the coil disc 3 is located at the bottom of the support base 2 to avoid occupying the side space of the cooking appliance and facilitate the storage of the cooking appliance; and / or the coil disc 3 is located on the side of the support base 2 to improve the uniformity of heating of various parts inside the heating container 7 and to improve cooking efficiency.

[0116] Optionally, the coil on the support 2 is wound around the outer wall of the support 2.

[0117] Optionally, the bottom wall of the support base 2 is also provided with a viewing window, which is arranged opposite to at least a portion of the coil disk 3 so that the user can observe the position of the coil disk 3.

[0118] In some embodiments, optionally, when there are multiple pretensioners 4, the multiple pretensioners 4 are distributed around the circumference of the coil 3.

[0119] In this embodiment, when there are multiple pretensioners 4, the multiple pretensioners 4 are distributed around the circumference of the coil disk 3, thereby making the thrust or driving force on each position of the coil disk 3 more balanced, and making the movement of the coil disk 3 more stable.

[0120] Optionally, when there is only one pretensioner 4, the pretensioner 4 is positioned at the center of the coil disc 3.

[0121] It is understood that when the drive assembly 5 includes the first gear 52, the circumferential direction of the coil disk 3 includes the direction about the axis of rotation of the first gear 52.

[0122] Specifically, the cooking appliance is an electromagnetic heating appliance. Optionally, the cooking appliance includes rice cookers, electric pressure cookers, etc.

[0123] According to one embodiment of this application, optionally, a compression spring (e.g., preload 4) is provided between the large coil (e.g., support base 2) and the lifting plate (e.g., coil 3). The compression spring is always in a compressed and preloaded state so as to provide a force opposite to the direction of movement of the lifting plate, ensuring reliable contact between the lifting plate and the large gear (e.g., the first gear 52) at all times, and ensuring movement stability.

[0124] Since the lifting platform is a part with a relatively large height and diameter, it relies on its own weight to descend after rising, which may result in skewed movement. The compression spring added in this application can also help the lifting platform return to its original position.

[0125] By designing the number of coils of the compression spring, the maximum vertical stroke of the lifting platform can be limited to avoid abnormal lifting and damage to related structures when the lifting platform position control system malfunctions.

[0126] Compression springs can be one or more arranged axially, or they can be replaced by other retractable components (such as silicone).

[0127] To avoid changes in spring performance, compression springs should ideally have magnetic shielding properties to prevent them from being heated by magnetic fields. Optionally, compression springs can be equipped with antimagnetic coatings or outer protective sleeves.

[0128] The cooking appliance proposed in this application, which is an electromagnetic heating product, features a liftable coil. Due to the presence of a driving force, the lifting plate may tilt, vibrate, or experience poor contact during its movement. To ensure the stability of the lifting plate's movement, a compression spring is designed into the system, making the transmission of the driving force effective, reliable, and stable, and also facilitating the repositioning of the lifting plate.

[0129] 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.

[0130] 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.

[0131] 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 support base is disposed within the housing; A heating container can be mounted on the support base; A coil disk is disposed inside the housing, and a coil is wound on the coil disk. When the coil disk is energized, the coil on the coil disk generates a magnetic field that causes the heating container to heat up. A drive assembly that contacts the coil and is used to drive the coil to move relative to the heating container in order to adjust the heating power of the cooking appliance during the cooking process. At least one preload is provided for pushing the coil disc into contact with the drive assembly.

2. The cooking utensil according to claim 1, characterized in that, The preload is located between the support base and the coil disc, and the preload is in a compressed state.

3. The cooking utensil according to claim 2, characterized in that, The support base has a limiting post on the side facing the coil disk, and the coil disk is sleeved on the limiting post. The coil disc is provided with a limiting groove, which surrounds the limiting post, and at least one of the pre-tightening members is sleeved on the limiting post and located in the limiting groove.

4. The cooking utensil according to claim 1, characterized in that, The pretensioner is provided with a magnetic shielding coating, or the outer side of the pretensioner is fitted with a magnetic shielding sleeve, or the pretensioner includes a magnetic shielding pretensioner.

5. The cooking utensil according to claim 1, characterized in that, The drive assembly can drive the coil disk to move up and down between a first position close to the heating container and a second position far from the heating container, and the preload can push the coil disk back to the second position.

6. The cooking utensil according to claim 5, 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.

7. The cooking utensil according to claim 5, characterized in that, The driving component includes: The motor is connected to the housing; The first gear is located at the bottom of the coil disk, and the first gear is provided with a first mating part. The coil disk is provided with a second mating part. The preload member is used to push the first mating part to contact the second mating part. The second gear, connected to the motor, is located on one side of the first gear in the radial direction and meshes with the first gear. The motor drives the first gear to rotate through the second gear, thereby driving the coil disk to rise and fall relative to the heating container through the first mating part and the second mating part.

8. The cooking utensil according to claim 7, characterized in that, One of the first mating portion and the second mating portion includes a first protrusion and a first recess, the first protrusion and the first recess are alternately arranged along the rotation direction of the first gear, and the other of the first mating portion and the second mating portion can alternately engage with the first protrusion and the first recess to make the coil disk rise and fall between the first position and the second position.

9. The cooking utensil according to claim 8, characterized in that, The other of the first mating part and the second mating part further includes a second protrusion and a second recess, which are alternately arranged along the rotation direction of the first gear.

10. The cooking utensil according to claim 9, characterized in that, The first protrusion and the first recess are sequentially connected 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 sequentially connected along the rotation direction, or the second protrusion and the second recess are spaced apart along the rotation direction; and / or The second mating part is located in the middle of the coil disk, and the coil on the coil disk is located around the second mating part, or the second mating part is arranged along the radial direction of the first gear close to the side wall of the coil disk, and the second mating part surrounds the coil on the coil disk.

11. The cooking utensil according to claim 9, characterized in that, Also includes: A rolling element is disposed in at least one of the first mating portion and the second mating portion, and the first mating portion and the second mating portion are in contact through the rolling element.

12. The cooking utensil according to claim 11, characterized in that, One of the first mating part and the second mating part is provided with a groove, a portion of the rolling element is embedded in the groove and can roll in the groove, and another portion protrudes from the groove and contacts the other of the first mating part and the second mating part.

13. The cooking utensil according to claim 11, characterized in that, The rolling element includes any one of metal, silicone, or rubber components.

14. The cooking utensil according to claim 5, characterized in that, The support base is provided with a first limiting part, and the coil is provided with a second limiting part, with the first limiting part and the second limiting part slidingly engaged.

15. The cooking utensil according to any one of claims 1 to 4, characterized in that, A coil is wound around the outer wall of the support base, and 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; and / or The coil is located at the bottom of the support base and / or the coil is located on the side of the support base.

16. The cooking utensil according to any one of claims 1 to 4, characterized in that, When there are multiple pretensioners, the multiple pretensioners are distributed around the circumference of the coil.

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