Cooking utensil
By setting a limiting structure between the fixed heating element and the floating heating element, the problem of the floating heating element falling off or misaligning due to the failure of the elastic element is solved, thereby improving the safety and heating uniformity of the cooking appliance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-07
AI Technical Summary
In existing cooking appliances, the elastic elements of floating heating elements may fail due to factors such as prolonged high temperature, frequent physical stress, or aging, causing the floating heating elements to be unable to float stably, or even fall off or become misaligned, leading to safety hazards and uneven heating.
A limiting structure is set between the fixed heating element and the floating heating element. The movement range of the floating heating element is controlled by the cooperation of the first limiting structure and the second limiting structure to prevent it from falling off or misaligning, and to ensure stable contact and uniform heating of the heating element.
It effectively prevents abnormalities in the floating heating element, ensuring the safety and uniform heating of the cooking appliance, and improving the reliability of the equipment and the cooking effect.
Smart Images
Figure CN224085074U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to domestic appliance technical field, especially cooking utensil. BACKGROUND
[0002] In the design and development of cooking utensils, in order to improve heating efficiency and uniformity, the combination of floating heating parts and fixed heating parts is often used, and the floating heating parts can float up and down according to the weight or volume of the contents in the inner pot to adapt to different cooking needs. The floating heating parts are usually connected to other parts of the cooking utensil through elastic elements such as springs to realize the function of floating up and down. However, in actual use, the elastic elements such as springs may fail due to long-term high-temperature environment, frequent physical stress or aging, etc. Once the spring fails, the floating heating part may no longer maintain a stable floating state, and may even appear abnormal conditions such as falling off or mispositioning. SUMMARY
[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a cooking utensil.
[0004] The cooking utensil according to the embodiments of the present application comprises:
[0005] An outer pot is provided with a mounting cavity;
[0006] An inner pot is movably assembled in the mounting cavity;
[0007] A heating assembly is arranged between the outer pot and the inner pot, and the heating assembly comprises a fixed heating part, a floating heating part and a first elastic part; the floating heating part is floatable relative to the fixed heating part through the first elastic part, the first elastic part is used for providing the floating heating part with an elastic force towards the inner pot, and the fixed heating part and the floating heating part are both used for heating the inner pot;
[0008] The fixed heating part is provided with a first limiting structure, the floating heating part is provided with a second limiting structure, the first limiting structure is arranged on the side of the second limiting structure away from the inner pot, and in the case that the second limiting structure abuts against the first limiting structure, the floating heating part stops moving.
[0009] According to the cooking utensil provided by the embodiment of the present application, the first limiting structure is arranged on the fixed heating element, and the second limiting structure is arranged on the floating heating element, so that the movement range of the floating heating element is effectively controlled, and the abnormal situation that the floating heating element excessively floats and falls off or is misaligned is prevented in the case that the first elastic element fails. The design effectively eliminates the safety hazards that the floating heating element may cause to other components of the cooking utensil, such as electrical short circuit, local overheating, mechanical damage or the risk that the user contacts the high-temperature component. Meanwhile, the stable operation of the floating heating element also ensures the heating uniformity, and improves the cooking effect and the equipment reliability.
[0010] According to one embodiment of the present application, the fixed heating element is fixedly connected to the outer pot, and the first elastic element is connected between the floating heating element and the outer pot.
[0011] According to one embodiment of the present application, the first limiting structure extends outward relative to the fixed heating element, and the second limiting structure extends outward relative to the floating heating element.
[0012] The position of the first limiting structure for abutting against the second limiting structure is provided with a first chamfer, and the second limiting structure is adapted to abut against the first chamfer.
[0013] According to one embodiment of the present application, the fixed heating element is provided with a first heating surface, a surface of the fixed heating element for constituting the first chamfer and facing the second limiting structure is a first limiting surface, an included angle between the first limiting surface and the first heating surface is a preset included angle, and the preset included angle is 30°-60°.
[0014] According to one embodiment of the present application, the position of the second limiting structure for abutting against the first limiting structure is provided with a second chamfer, and the second chamfer is arranged corresponding to the first chamfer.
[0015] According to one embodiment of the present application, the first limiting structure extends outward relative to the fixed heating element, and the second limiting structure extends outward relative to the floating heating element; the position of the first limiting structure for abutting against the second limiting structure is provided with a first stepped surface, the position of the second limiting structure for abutting against the first limiting structure is provided with a second stepped surface, and the second stepped surface is adapted to abut against the first stepped surface.
[0016] According to one embodiment of the present application, the first limiting structure and the fixed heating element are integrally formed, and / or the second limiting structure and the floating heating element are integrally formed, and / or the fixed heating element and the floating heating element are two parts obtained by splitting a heat disc.
[0017] According to one embodiment of the present application, the fixed heating element and the floating heating element are arranged at the bottom of the installation cavity, and the floating heating element is arranged around the fixed heating element.
[0018] Alternatively,
[0019] The fixed heating element and the floating heating element are arranged at the bottom of the installation cavity, and the fixed heating element is arranged around the floating heating element.
[0020] According to one embodiment of the present application, the number of the first elastic elements is multiple, and the multiple first elastic elements are uniformly distributed between the floating heating element and the outer pot.
[0021] According to one embodiment of the present application, a temperature controller is further included, which is in contact with the fixed heating element and used for detecting the temperature of the fixed heating element.
[0022] Alternatively, a temperature controller is further included, the fixed heating element provides heat for the inner pot by abutting against the inner pot, the temperature sensing part of the temperature controller is arranged in a spaced manner with the fixed heating element, the temperature controller is used for detecting the temperature of the inner pot, and the floating heating element is arranged in a spaced manner with the inner pot when the second limiting part abuts against the first limiting part.
[0023] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description only show some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.
[0025] Figure 1 is a structural schematic diagram of a cooking utensil provided by an embodiment of the present application.
[0026] Figure 2 is a sectional structural schematic diagram of a cooking utensil provided by an embodiment of the present application, in which the inner pot and the floating heating element are in the second position.
[0027] Figure 3 is Figure 2 is a local enlarged structural schematic diagram of the cooking utensil at A provided by the embodiment.
[0028] Figure 4 is a structural schematic diagram of the floating heating element in the fourth position provided by one embodiment of the present application.
[0029] Figure 5 is a structural schematic view of the floating heating element in the fourth position provided by another embodiment of the application.
[0030] Figure 6 is a sectional structural schematic view of the floating heating element in the first position provided by the cooking utensil without the inner pot according to an embodiment of the application.
[0031] Figure 7 is a sectional structural schematic view of the floating heating element in the fourth position provided by the cooking utensil without the inner pot according to an embodiment of the application. Figure 6 is a partial enlarged structural schematic view of the cooking utensil at B provided by an embodiment.
[0032] Figure 8 is a sectional structural schematic view of the floating heating element in the fourth position provided by the cooking utensil without the inner pot according to an embodiment of the application.
[0033] Figure 9 is a sectional structural schematic view of the floating heating element in the fourth position provided by the cooking utensil without the inner pot according to an embodiment of the application. Figure 8 is a partial enlarged structural schematic view of the cooking utensil at C provided by an embodiment.
[0034] Figure 10 is a sectional structural schematic view of the floating heating element in the fourth position provided by the cooking utensil without the inner pot according to an embodiment of the application. Figure 2 is a schematic view of the original length dimension of the first elastic element of the cooking utensil when the floating heating element is in the second position provided by an embodiment.
[0035] Figure 11 is a schematic view of the original length dimension of the first elastic element of the cooking utensil when the floating heating element is in the second position provided by an embodiment. Figure 6 is a schematic view of the length dimension of the first elastic element of the cooking utensil when the floating heating element is in the first position provided by an embodiment.
[0036] Figure 12 is a schematic view of the moving stroke L1 of the floating heating element in the fourth position provided by an embodiment of the cooking utensil. Figure 8 Reference signs:
[0037] 100, outer pot; 101, mounting cavity;
[0038] 200, inner pot;
[0039] 300, heating assembly; 310, fixed heating element; 311, first heating surface; 312, first limiting structure; 313, first chamfer; 314, first stepped surface; 315, first limiting surface; 320, floating heating element; 321, second heating surface; 322, second limiting structure; 323, heating element main body; 324, mounting column; 325, second chamfer; 326, second stepped surface; 330, first elastic element;
[0040] 400, temperature controller;
[0041] 500, second elastic element.
[0042] DETAILED DESCRIPTION
[0043] The embodiments of the present application will be further described in details with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0044] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only used for description purposes and cannot be understood as indicating or implying relative importance.
[0045] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, wherein the fixedly connected can include the manner of integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0046] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.
[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0048] The following will be described in combination with Figures 1 to 12 The cooking utensil of the present application is described.
[0049] According to the cooking utensil of the embodiments of the present application, please refer to Figures 1 to 4 The cooking utensil includes an outer pot 100, an inner pot 200 and a heating assembly 300. The outer pot 100 is provided with a mounting cavity 101; the inner pot 200 is movably assembled in the mounting cavity 101; the heating assembly 300 is arranged between the outer pot 100 and the inner pot 200, and the heating assembly 300 includes a fixed heating piece 310, a floating heating piece 320 and a first elastic piece 330; the floating heating piece 320 is floatable relative to the fixed heating piece 310 through the first elastic piece 330, and the first elastic piece 330 is used to provide the floating heating piece 320 with an elastic force for approaching the inner pot 200; both the fixed heating piece 310 and the floating heating piece 320 are used to heat the inner pot 200; the fixed heating piece 310 is provided with a first limiting structure 312, the floating heating piece 320 is provided with a second limiting structure 322, and the first limiting structure 312 is arranged on the side of the second limiting structure 322 away from the inner pot 200; in the case that the second limiting structure 322 abuts against the first limiting structure 312, the floating heating piece 320 stops moving.
[0050] According to the cooking utensil of the embodiments of the present application, through the cooperation of the first limiting structure 312 and the second limiting structure 322, the moving range of the floating heating piece 320 is effectively controlled, and abnormal conditions such as falling off or mispositioning caused by excessive floating of the floating heating piece 320 when the first elastic piece 330 fails are avoided. This design effectively eliminates the safety hazards that the floating heating piece 320 may cause to other components of the cooking utensil, such as electrical short circuit, local overheating, mechanical damage or the risk of user contacting high-temperature components. At the same time, the stable operation of the floating heating piece 320 also ensures the heating uniformity, improves the cooking effect and equipment reliability.
[0051] It can be understood that the outer pot 100 is an outer structure of the cooking appliance, and the outer pot 100 is provided with a mounting cavity 101 for accommodating the inner pot 200 and the heating assembly 300. The material of the outer pot 100 can be a metal material resistant to high temperature and corrosion. The inner pot 200 can be movably assembled in the mounting cavity 101 of the outer pot 100, so as to facilitate the user to take and place food materials. The material of the inner pot 200 can also be a metal material resistant to high temperature and corrosion, and the surface of the inner pot 200 can be provided with a non-stick coating to reduce the friction between the food materials and the inner pot 200 and facilitate cleaning.
[0052] The heating assembly 300 is arranged between the outer pot 100 and the inner pot 200, and is responsible for providing heat required for cooking. The heating assembly 300 includes a fixed heating piece 310, a floating heating piece 320 and a first elastic piece 330.
[0053] The first limiting structure 312 is arranged on the fixed heating piece 310 and is used for limiting the movement range of the floating heating piece 320. The first limiting structure 312 can be a structure form such as a protrusion, a boss or a clamping groove, which can reliably abut against the second limiting structure 322. The second limiting structure 322 is arranged on the floating heating piece 320, and when the floating heating piece 320 floats to a certain position, it will abut against the first limiting structure 312, thereby stopping moving. The second limiting structure 322 can also be a structure form such as a protrusion, a boss or a clamping groove, which is matched with the first limiting structure 312.
[0054] The cooking appliance of the embodiment of the present application ensures that the movement range of the floating heating piece 320 is effectively controlled by the arrangement of the first limiting structure 312 and the second limiting structure 322, and reduces the possibility of safety hazards caused by the contact of the floating heating piece 320 with other components of the cooking appliance due to the failure of the first elastic piece 330.
[0055] In actual use, if the first elastic piece fails, it can cause the floating heating piece 320 to lose contact with the fixed heating piece 310, and at the same time, in the case that there is no heat conduction from the inner pot, the temperature measuring piece arranged on the fixed heating piece 310 will not be able to detect the temperature of the floating heating piece 320. In this case, even if the floating heating piece 320 is in a high temperature state due to continuous heating, the temperature measuring piece cannot identify the temperature change, so as to fail to trigger the overheat protection mechanism. This scenario can bring great safety hazards, such as the risk of fire caused by the overheat of the floating heating piece 320, or the damage of internal components of the cooking appliance.
[0056] Therefore, by the design of the first limiting structure 312 and the second limiting structure 322, the movement range of the floating heating element 320 is limited, and the contact stability between the floating heating element 320 and the fixed heating element 310 is indirectly ensured, so that the temperature measuring element can accurately detect the temperature, and the safety hazard caused by temperature detection failure is avoided. At the same time, the design further improves the overall safety and reliability of the cooking appliance.
[0057] According to an embodiment of the present application, the fixed heating element 310 is fixedly connected to the outer pot 100, and the first elastic element 330 is connected between the floating heating element 320 and the outer pot 100.
[0058] The fixed heating element 310 is fixedly connected to the outer pot 100 to provide a stable heat source. The floating heating element 320 is floatingly connected to the outer pot 100 by the first elastic element 330, and can float up and down according to the weight or volume of the content in the inner pot 200. The first elastic element 330 serves as an elastic element for connecting the floating heating element 320 and the outer pot 100, and can be a spring or an elastic sheet, etc., which has the characteristics of good elasticity, high temperature resistance, etc. By the elastic action of the first elastic element 330, the floating heating element 320 can flexibly float up and down to adapt to the cooking requirements of different food materials.
[0059] According to an embodiment of the present application, the fixed heating element 310 is provided with a first heating surface 311, and the floating heating element 320 is provided with a second heating surface 321. In the case that the inner pot 200 is assembled in the mounting cavity 101 by self-weight, the floating heating element 320 is in a first position, in which the first heating surface 311 and the second heating surface 321 both abut against the inner pot 200. In the case that the inner pot 200 is disassembled from the mounting cavity 101, the floating heating element 320 is in a second position, in which the second heating surface 321 is higher than the first heating surface 311. In the case that the second limiting structure 322 abuts against the first limiting structure 312, the floating heating element 320 is in a fourth position, in which the second heating surface 321 is lower than the first heating surface 311.
[0060] When the inner pot 200 is assembled in the mounting cavity 101, the first heating surface 311 is in close contact with the bottom of the inner pot 200, thereby achieving direct heating of the inner pot 200. The floating heating member 320 can automatically adjust the position according to the assembly and disassembly state of the inner pot 200. When the inner pot 200 is assembled, the second heating surface 321 is also in close contact with the bottom of the inner pot 200, and the first heating surface 311 and the second heating surface 321 together achieve comprehensive heating of the inner pot 200. In the case of failure of the first elastic member 330, the floating heating member 320 is in the fourth position, and the first limiting structure 312 of the fixed heating member 310 can prevent the floating heating member 320 from further descending, while ensuring that the floating heating member 320 and the fixed heating member 310 remain in contact. This design can prevent the floating heating member 320 from further descending and ensure that the floating heating member 320 and the fixed heating member 310 remain in contact in the case of failure of the elastic member (which can cause high temperature). This contact allows the heat of the floating heating member 320 to be transmitted to the temperature control device through the fixed heating member 310, thereby achieving precise control of the heating process.
[0061] According to an embodiment of the present application, the first limiting structure 312 extends outward relative to the fixed heating member 310, and the second limiting structure 322 extends outward relative to the floating heating member 320.
[0062] The first limiting structure 312 extends outward relative to the fixed heating member 310, forming a spatial "lug" structure. The second limiting structure 322 extends outward relative to the floating heating member 320, also forming a spatial "lug" structure, and the first limiting structure 312 and the second limiting structure 322 are suitable for being staggered in the moving direction of the floating heating member 320.
[0063] According to an embodiment of the present application, the first limiting structure 312 is provided with a first chamfer 313 at a position for abutting against the second limiting structure, and the second limiting structure 322 is suitable for abutting against the first chamfer 313.
[0064] Specifically, the upper side of the fixed heating member 310 is provided with the first chamfer 313, and the second limiting structure 322 can precisely abut against the first chamfer 313 of the first limiting structure 312. When the first elastic member 330 fails and cannot support the floating heating member 320, the second limiting structure 322 can limit the movement stroke of the floating heating member 320 and cause the floating heating member 320 and the fixed disc to come into contact in a dangerous situation, so that heat can be transmitted to the fixed heating member 310 and the temperature controller 400, thereby preventing the risk from expanding.
[0065] According to one embodiment of the present application, the fixed heating element 310 is provided with a first heating surface 311, which forms a first chamfer 313 and faces the first limiting surface 315 of the second limiting structure. The angle between the first limiting surface 315 and the first heating surface 311 is a preset angle, which is 30°-60°.
[0066] It can be understood that the preset angle is accurately set to 30°-60°, which ensures the strength of the support structure.
[0067] The preset angle can be 30°, 40°, 45°, 50° or 60°, which is not specifically limited here.
[0068] According to one embodiment of the present application, the position of the second limiting structure 322 for abutting against the first limiting structure is provided with a second chamfer 325, which corresponds to the first chamfer 313, thereby ensuring the stability and safety between the second limiting structure 322 and the first limiting structure 312.
[0069] In one embodiment, the upper side of the outer circle of the fixed heating element 310 is provided with a chamfer of about 45°, so that the upper surface of the outer diameter position of the fixed heating element 310 forms a normal upward slope. The lower side of the inner circle of the floating heating element 320 is also provided with a chamfer of about 45°, so that the lower surface of the inner diameter position of the floating heating element 320 also forms a normal downward slope, which is opposite to the upper surface of the outer diameter position of the fixed heating element 310. And the outer circle diameter of the working surface of the fixed heating element 310 is smaller than the inner circle diameter of the working surface of the floating heating element 320.
[0070] At the same time, the chamfer size of the inner diameter of the floating heating element 320 is smaller than the chamfer size of the outer diameter of the fixed heating element 310, so that when the floating heating element 320 is at the lowest position, its working surface can be lower than the working surface of the fixed heating element 310, which can ensure that after the floating heating element 320 is pressed down, the inner pot 200 can be in contact with the floating heating element 320 and the fixed heating element 310 at the same time.
[0071] Such a structure also has the ability to avoid foreign matter. In the natural state where the floating heating element 320 is not pressed down, there is a certain height difference between the two discs, and the opposite surfaces can form a certain gap, which can accommodate the falling of microparticles or similar foreign matter into the outer pot 100, thereby avoiding being stuck in the gap between the two discs and affecting the contact between the double heating discs and the inner pot 200.
[0072] According to an embodiment of the present application, the first limiting structure extends outward relative to the fixed heating element, and the second limiting structure extends outward relative to the floating heating element; a first step surface 314 is arranged on the first limiting structure 312 at a position for abutting against the second limiting structure, and a second step surface 326 is arranged on the second limiting structure 322 at a position for abutting against the first limiting structure, and the second step surface 326 is adapted to abut against the first step surface 314.
[0073] The first step surface 314 is arranged on the first limiting structure 312, and forms an effective abutting surface with the second step surface 326, thereby enhancing the stability and reliability of the limiting structure. The second step surface 326 is arranged on the second limiting structure 322, corresponding to the first step surface 314. The design of the second step surface 326 should ensure that, after the failure of the first elastic member 330, the second step surface 326 can smoothly abut against the first step surface 314, thereby forming a stable limiting relationship.
[0074] According to an embodiment of the present application, the first limiting structure 312 and the fixed heating element 310 are integrally formed. In this embodiment, the fixed heating element 310 and the first limiting structure 312 are processed by integral molding technology, ensuring the close combination and overall strength between the two. This design improves the stability and safety of the heating assembly 300, so that the first limiting structure 312 can better withstand the stress and impact of the second limiting structure 322 on the first limiting structure 312 after the failure of the first elastic member 330.
[0075] According to an embodiment of the present application, the second limiting structure 322 and the floating heating element 320 are integrally formed. In this embodiment, the floating heating element 320 and the second limiting structure 322 are processed by integral molding technology, ensuring the close combination and overall strength between the two. This design improves the stability and safety of the heating assembly 300, so that the second limiting structure 322 can better withstand the stress and impact of the second limiting structure 322 on the first limiting structure 312 after the failure of the first elastic member 330.
[0076] In some embodiments, the fixed heating element and the floating heating element are two parts obtained by splitting a hot plate. Generally, the hot plate is in the shape of a disc, and the fixed heating element and the floating heating element can be distinguished by being arranged in an inner and outer sleeve manner, that is, one of the two is arranged around the other. The fixed heating element and the floating heating element can also be distinguished by a fan-shaped manner, that is, two radius dividing lines passing through the center of the hot plate are used to divide the hot plate into two heating areas, which are used as the fixed heating element and the floating heating element, respectively.
[0077] According to one embodiment of the present application, the fixed heating element 310 and the floating heating element 320 are both arranged at the bottom of the mounting cavity 101, and the floating heating element 320 is arranged around the fixed heating element 310. In this embodiment, the fixed heating element 310 is located at the center, and the floating heating element 320 is distributed around the periphery of the fixed heating element 310. Since the floating heating element 320 can cover a wider heating area, this design helps to improve the heating efficiency and make the heat more evenly distributed on the bottom of the cooking utensil.
[0078] According to one embodiment of the present application, the fixed heating element 310 and the floating heating element 320 are both arranged at the bottom of the mounting cavity 101, and the fixed heating element 310 is arranged around the floating heating element 320. In this embodiment, the floating heating element 320 is located at the center, and the fixed heating element 310 is distributed around the periphery of the floating heating element 320.
[0079] In one embodiment, the temperature controller 400, the fixed heating element 310, and the floating heating element 320 are all arranged at the bottom of the mounting cavity 101, the fixed heating element 310 is arranged around the temperature controller 400, and the floating heating element 320 is arranged around the fixed heating element 310.
[0080] In this embodiment, the temperature controller 400 can be used to detect the temperature of the fixed heating element 310. When the first limiting structure 312 of the fixed heating element 310 abuts against the second limiting structure 322 of the floating heating element 320, a new heat transfer path is generated by the floating heating element 320. In one embodiment, the temperature controller 400, the fixed heating element 310, and the floating heating element 320 are all arranged at the bottom of the mounting cavity 101, the fixed heating element 310 is arranged around the temperature controller 400, and the floating heating element 320 is arranged around the fixed heating element 310.
[0081] In this embodiment, the temperature controller 400 can be used to detect the temperature of the fixed heating element 310, and the fixed heating element 310 becomes a limiting device for the lower limit of the floating position of the floating heating element 320. If an unexpected situation such as high temperature causes the elasticity of the floating spring to decrease, it will cause the floating heating element 320 to move downward and fail to contact the inner pot 200, and the increase in the temperature of the floating heating element 320 will exacerbate the decrease in the elasticity of the spring. At this time, the risk of the floating heating element 320 increases, and the floating heating element 320 will not be in contact with the fixed heating element 310 until it moves downward to a new heat transfer path, which will transfer the heat of the floating heating element 320 to the fixed heating element 310 and the temperature controller 400, control the heating process, and avoid greater danger.
[0082] According to one embodiment of the present application, the number of first elastic elements 330 is multiple, and the multiple first elastic elements 330 are uniformly distributed between the floating heating element 320 and the outer pot 100.
[0083] The first elastic members 330 are evenly distributed between the floating heating element 320 and the outer pot 100 to ensure that the floating heating element 320 can float smoothly and be uniformly stressed in all directions.
[0084] According to an embodiment of the present application, the cooking appliance further comprises a temperature controller 400 in contact with the fixed heating element 310 for detecting the temperature of the fixed heating element 310.
[0085] The temperature controller 400 functions to ensure that the heating process is within a safe and controllable range by monitoring the temperature change of the fixed heating element 310 in real time. When the temperature of the fixed heating element 310 exceeds a preset threshold, the temperature controller 400 triggers a protection mechanism, such as cutting off the power or reducing the heating power, thereby avoiding potential safety hazards caused by overheating, such as equipment damage, fire risk, or user scalding.
[0086] In addition, the design of the temperature controller 400 further enhances the intelligent function of the cooking appliance. Through precise temperature detection and control, the temperature controller 400 can optimize the heating efficiency, ensure uniform heating of food, and improve the cooking effect. At the same time, the direct contact design of the temperature controller 400 with the fixed heating element 310 can quickly respond to temperature changes, improve the accuracy and real-time performance of temperature detection, and provide higher safety and reliability assurance for the cooking process.
[0087] According to an embodiment of the present application, the cooking appliance further comprises a temperature controller 400, the fixed heating element 310 provides heat for the inner pot 200 by abutting against the inner pot 200, the temperature sensing part of the temperature controller 400 is arranged in a spaced manner with the fixed heating element 310, the temperature controller 400 is used to detect the temperature of the inner pot 200, and the floating heating element 320 is arranged in a spaced manner with the inner pot 200 when the second limiting part abuts against the first limiting part.
[0088] The temperature sensing part of the temperature controller 400 is spaced apart from the fixed heating element 310. This design enables the temperature controller 400 to directly detect the temperature of the inner pot 200 rather than the temperature of the fixed heating element 310, thereby more accurately reflecting the actual temperature of the inner pot 200 and achieving precise control over the cooking process. When the first elastic member is in an effective state, the floating heating element is in contact with the inner pot placed in the mounting cavity. When the first elastic member fails, the floating heating element falls downward without the support of the first elastic member, and when the second limiting part abuts against the first limiting part, the floating heating element 320 is arranged in a spaced-apart manner between the inner pot 200. The heat of the floating heating element is transmitted to the temperature controller 400 through the fixed heating element and the inner pot in turn. The temperature controller 400 can monitor the cooking state in real time by detecting the temperature of the inner pot 200. When the temperature of the inner pot 200 is too high, the temperature controller 400 can trigger a protection mechanism (such as cutting off the power supply or reducing the heating power) to prevent safety hazards caused by overheating, such as food burning, equipment damage, or fire risk.
[0089] According to the cooking appliance provided in the embodiments of the present application, please refer to Figures 1 to 9 The cooking appliance comprises an outer pot 100, an inner pot 200, and a heating assembly 300. The outer pot 100 is provided with a mounting cavity 101. The inner pot 200 is movably assembled in the mounting cavity 101. The heating assembly 300 is arranged between the outer pot 100 and the inner pot 200. The heating assembly 300 comprises a fixed heating element 310, a floating heating element 320, and a first elastic member 330. The fixed heating element 310 is fixedly connected to the outer pot 100. The fixed heating element 310 has a first heating surface 311. The floating heating element 320 is floatingly connected to the outer pot 100 through the first elastic member 330. The floating heating element 320 has a second heating surface 321. In the case that the inner pot 200 is assembled in the mounting cavity 101 by gravity, the floating heating element 320 is in a first position. In the first position, the first heating surface 311 and the second heating surface 321 both abut against the inner pot 200. In the case that the inner pot 200 is disassembled from the mounting cavity 101, the floating heating element 320 is in a second position. In the second position, the second heating surface 321 is higher than the first heating surface 311.
[0090] According to the cooking utensil, when the user selects to open the cover to cook or the content in the inner pot 200 is less, the floating heating element 320 can be self-adaptively adjusted in height, and the requirement that the fixed heating element 310 and the floating heating element 320 simultaneously heat the inner pot 200 can be met. The floating heating element 320 is in the first position under the action of the first elastic element 330. In the first position, the first heating surface 311 and the second heating surface 321 are in close abutment with the inner pot 200, and it is ensured that heat can be efficiently and uniformly transmitted to the inner pot 200. In the case that the inner pot 200 is detached from the mounting cavity 101, the floating heating element 320 is automatically raised to the second position under the action of the first elastic element 330. In the second position, the second heating surface 321 is higher than the first heating surface 311.
[0091] It can be understood that the fixed heating element 310 can be fixedly connected to the bottom or the side wall of the outer pot 100, or can be fixedly connected to the transition wall surface between the bottom and the side wall of the outer pot 100. Similarly, the floating heating element 320 can be fixedly connected to the bottom or the side wall of the outer pot 100, or can be fixedly connected to the transition wall surface between the bottom and the side wall of the outer pot 100.
[0092] According to an embodiment of the present application, please refer to Figures 10 to 12 The longitudinal stiffness k of the first elastic element 330 satisfies: k(L-H)K > m1g.
[0093] Wherein, k represents the longitudinal stiffness of the first elastic element 330, L is the original length of the first elastic element 330, H is the length of the first elastic element 330 when the floating heating element 320 is in the second position. K is the number of the first elastic element 330, indicating how many elastic elements commonly support the floating heating element 320, m1 is the mass of the floating heating element 320, and g is the acceleration of gravity. In the case that the inner pot is detached from the mounting cavity, the first elastic element can support and maintain the floating heating element in the second position.
[0094] According to an embodiment of the present application, please refer to Figures 10 to 12, the longitudinal stiffness k of the first elastic member 330 satisfies: k(L-H+h1)K<(m1+m2)g, which means that the self weight of the inner pot 200 is enough to overcome the elastic force of the first elastic member 330 to move the floating heating member 320 to the first position, and ensure that the floating heating member 320 is in close contact with the inner pot 200; wherein k is the longitudinal stiffness of the first elastic member 330, L is the original length of the first elastic member 330, H is the length of the first elastic member 330 when the floating heating member 320 is in the second position, h1 is the length difference of the first elastic member when the floating heating member is in the first position and the second position, H-h1 is the length of the first elastic member 330 when the floating heating member 320 is in the first position, K is the number of the first elastic member 330, m1 is the mass of the floating heating member 320, m2 is the mass of the inner pot 200, and g is the acceleration of gravity.
[0095] According to one embodiment of the present application, the heating assembly 300 comprises a temperature controller 400 and a second elastic member 500, and the temperature controller 400 is floatingly connected to the outer pot 100 through the second elastic member 500. In the first position, the first heating surface 311, the second heating surface 321 and the temperature controller 400 are all in abutment with the inner pot 200.
[0096] The temperature controller 400 can be used to monitor the temperature change of the inner pot 200 during heating, and cut off the power supply when the preset temperature is reached, to prevent safety hazards caused by overheating. In this embodiment, the temperature controller 400 is floatingly connected to the outer pot 100 through the second elastic member 500. The temperature controller 400 maintains a certain degree of floating during the assembly of the inner pot 200 into the receiving cavity, so as to better fit the inner pot 200 and ensure the accuracy of measurement. The second elastic member 500 provides the necessary support force and also allows the temperature controller 400 to have a certain displacement space during heating, further improving the stability and reliability of measurement.
[0097] In the first position, i.e. when the inner pot 200 is assembled into the mounting cavity 101 by external constraints, the first heating surface 311 and the second heating surface 321 of the floating heating member 320 are in close abutment with the bottom and the sidewall (or the designated heating area) of the inner pot 200. At the same time, the temperature controller 400 is also in abutment with the inner pot 200 through the action of the second elastic member 500. The temperature controller 400 can accurately monitor the temperature change of the inner pot 200 and cut off the power supply in time to prevent overheating.
[0098] According to one embodiment of the present application, please refer to Figures 10 to 12, the longitudinal stiffness k of the first elastic member 330 satisfies: k(L-H+h1)K<(m1+m2)g-f, to ensure that the floating heating member 320 can stably descend to the first position under the combined action of the inner pot 200 and the second elastic member 500 and be in close contact with the inner pot 200; wherein k is the longitudinal stiffness of the first elastic member 330, L is the original length of the first elastic member 330, H is the length of the first elastic member 330 when the floating heating member 320 is in the second position, h1 is the length difference of the first elastic member when the floating heating member is in the first position and the second position, H-h1 is the length of the first elastic member 330 when the floating heating member 320 is in the first position, K is the number of the first elastic member 330, m1 is the mass of the floating heating member 320, m2 is the mass of the inner pot 200, g is the acceleration of gravity, and f is the elastic force of the second elastic member 500 when the floating heating member 320 is in the first position.
[0099] According to one embodiment of the present application, please refer to Figures 1 to 9 In the case that the inner pot 200 is assembled in the mounting cavity 101 by external constraint, the floating heating member 320 is in the third position, in which the first heating surface 311 and the second heating surface 321 are both in abutment with the inner pot 200, and the third position is the same as the first position.
[0100] It can be understood that the external constraint can be the extrusion force of the cover of the cooking appliance on the inner pot 200 when the cover covers the pot body of the cooking appliance, so that the inner pot 200 can descend to the third position and ensure that the first heating surface 311 and the second heating surface 321 are both in abutment with the inner pot 200.
[0101] According to one embodiment of the present application, the fixed heating member 310 is provided with a first limiting structure 312, and the floating heating member 320 is provided with a second limiting structure 322, the first limiting structure 312 is arranged in the moving direction of the floating heating member 320, wherein the first limiting structure 312 is arranged below the second limiting structure 322 when the floating heating member 320 is floating, and the floating heating member 320 stops moving when the second limiting structure 322 abuts against the first limiting structure 312.
[0102] The first limiting structure 312 is arranged on the fixed heating member 310 and located on the moving path of the floating heating member 320. The first limiting structure 312 can adopt the forms of protrusion, clamping groove, stop block, etc., and is designed in shape and size to be able to closely cooperate with the second limiting structure 322 to play a limiting role. In the floating process of the floating heating member 320, the second limiting structure 322 will gradually approach and eventually abut against the first limiting structure 312 along the moving path. The second limiting structure 322 can also adopt the forms of protrusion, recess, buckle, etc., to ensure stable cooperation with the first limiting structure 312.
[0103] Once the second limiting structure 322 abuts to the first limiting structure 312, further movement of the floating heating element 320 will be restricted due to the close fit between the two. This limiting action ensures that the floating heating element 320 does not move excessively or depart from the predetermined position, thereby protecting the electrical components and heating assembly 300 inside the cooking appliance and preventing safety hazards.
[0104] According to an embodiment of the present application, the maximum working stroke of the floating heating element 320 satisfies: H-L1>dN; where H is the length of the first elastic member 330 when the floating heating element 320 is in the second position, L1 is the distance between the first limiting structure 312 and the second limiting structure 322 when the floating heating element 320 is in the second position, d is the spring wire diameter, and N is the number of spring coils.
[0105] By precisely calculating the maximum working stroke, the present embodiment effectively prevents safety hazards caused by excessive compression or collision of the floating heating element 320 during movement. Reasonable stroke design ensures that the floating heating element 320 can stably contact the inner pot 200, thereby achieving efficient heat transfer and uniform cooking effect. It can be understood that even if the floating heating element 320 moves downward to the limit position (the position where the first limiting structure abuts to the second limiting structure, which can be referred to as the limit position), the space left for the first elastic member is sufficient to accommodate the first elastic member, and the first elastic member will not be compressed. Figure 10
[0106] According to an embodiment of the present application, the floating heating element 320 includes a heating element body 323 and a mounting column 324, the mounting column 324 is connected to the heating element body 323, the outer pot 100 is provided with a mounting hole, the mounting column 324 is mounted in the mounting hole through a fastener, the first elastic member 330 is sleeved on the mounting column 324, the first end of the first elastic member 330 abuts to the heating element body 323, and the second end of the first elastic member 330 abuts to the outer pot 100.
[0107] It can be understood that the mounting column 324 is connected to the heating element body 323 for fixing the heating element body 323 on the outer pot 100. The mounting column 324 can be cylindrical, square or other shapes. The fastener is used to fix the mounting column 324 in the mounting hole of the outer pot 100. Common fasteners include bolts, nuts, screws, etc.
[0108] The first elastic member 330 is sleeved on the mounting column 324 between the heating element body 323 and the outer pot 100. The first elastic member 330 can be a spring (such as a coil spring), a rubber pad or other materials with elasticity.
[0109] The first end of the first elastic member 330 abuts against the heating member body 323, and the second end abuts against the outer pot 100. In this way, when the heating member body 323 expands due to heating or the inner pot 200 changes in weight and floats, the first elastic member 330 can provide necessary elasticity and buffering, preventing the heating member body 323 from hard collision with the outer pot 100.
[0110] According to one embodiment of the present application, the opening diameter of the mounting hole is greater than the outer diameter of the mounting column 324, and the opening diameter of the mounting hole is less than the outer diameter of the first elastic member 330.
[0111] In the embodiment, the opening diameter of the mounting hole is greater than the outer diameter of the mounting column 324. The mounting column 324 can be smoothly inserted into the mounting hole without causing difficulty in mounting or damage to the components due to being too tight. The outer diameter of the first elastic member 330 is greater than the opening diameter of the mounting hole. During mounting, the first elastic member 330 can be compressed and clamped at the opening of the mounting hole, thereby providing necessary elasticity and buffering effect.
[0112] In one embodiment, the floating heating member 320 is designed with a bolt column for arranging a coil spring (first elastic member 330) providing elastic features. The inner diameter of the coil spring is slightly greater than the outer diameter of the bolt column. When the floating heating member 320 is assembled with the outer pot 100, the bottom of the outer pot 100 is provided with a mounting hole having an opening size slightly greater than the outer diameter of the bolt column but less than the outer diameter of the coil spring. In this way, the coil spring is limited between the bottom surface of the planar bolt column and the inner side of the outer pot 100. When the floating heating member 320 is mounted, the floating heating member 320 is slightly pressed down, so that the bolt column protrudes out of the outer pot 100, which can play a guiding and positioning role on the floating heating member 320, and also facilitates the installation of the planar bolt. The maximum diameter of the head of the planar bolt should be greater than the opening diameter of the outer pot 100, for limiting the upward movement of the floating disc. After the installation is completed, in the natural state, the bottom surface of the head of the planar bolt is at the same height as the bottom surface of the outer pot 100 and the bottom surface of the bolt column. The spring is in a compressed state, and the length in this state is denoted as H.
[0113] At this time, the floating heating member 320 is in the initial installation position, and the floating heating member 320 is subjected to its own gravity and the pre-tightening force generated by the installation compression of the coil spring; in this state, the spring supporting force at the installation position should be greater than or equal to the gravity of the floating heating member 320, so that the floating heating member 320 is close enough to the top, so as to ensure that the inner pot 200 is placed into the floating heating member 320 first, and then contacts the fixed disc after being pressed down sufficiently.
[0114] The longitudinal stiffness of the spring should satisfy the following condition: k(L-H)K > m1g. Wherein, k is the longitudinal stiffness of the first elastic member 330, L is the original length of the first elastic member 330, H is the length of the first elastic member 330 when the floating heating element 320 is in the second position, K is the number of the first elastic member 330, m1 is the mass of the floating heating element 320, g is the acceleration of gravity.
[0115] When the cooking utensil is in the rice cooking condition, the pot cover limits the inner pot 200 to a certain extent, and the downward displacement of the pot cover can ensure that the inner pot 200 moves downward by a sufficient distance. At this time, the floating heating element 320 moves downward by a distance h1, and the floating heating element 320 and the fixed disc are in contact with the bottom of the inner pot 200 at the same time, as shown in FIG. 6. Figures 10 to 12
[0116] However, when the utensil is in the open cover cooking condition, if the pot body is light and the content is small, the inner pot 200 can not generate sufficient downward force, so that the floating heating element 320 generates sufficient displacement. Therefore, when the floating heating element 320 is in this position, the supporting force received by the floating heating element 320, that is, the spring supporting force of the floating structure, should be smaller than the additional downward force generated by the inner pot 200, so that the inner pot 200 in the empty pot state can also make the floating heating element 320 generate sufficient displacement. Therefore, the longitudinal stiffness of the spring of the floating structure should also satisfy the following condition: k(L-H+h1)K < (m1+m2)g-f; wherein, k is the longitudinal stiffness of the first elastic member 330, L is the original length of the first elastic member 330, H is the length of the first elastic member 330 when the floating heating element 320 is in the second position, h1 is the length difference of the first elastic member when the floating heating element is in the first position and the second position, H-h1 is the length of the first elastic member 330 when the floating heating element 320 is in the first position, K is the number of the first elastic member 330, m1 is the mass of the floating heating element 320, m2 is the mass of the inner pot 200, g is the acceleration of gravity, and f is the elastic force of the second elastic member 500 when the floating heating element 320 is in the third position.
[0117] Finally, it should be noted that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of the claims of the present application.
Claims
1. A cooking utensil, characterized in that, include: The outer pot has an installation cavity; The inner pot is movably fitted into the mounting cavity; A heating assembly is disposed between the outer pot and the inner pot. The heating assembly includes a fixed heating element, a floating heating element, and a first elastic element. The floating heating element is buoyant relative to the fixed heating element via the first elastic element. The first elastic element provides an elastic force to the floating heating element towards the inner pot. Both the fixed heating element and the floating heating element are used to heat the inner pot. The fixed heating element is provided with a first limiting structure, and the floating heating element is provided with a second limiting structure. The first limiting structure is located on the side of the second limiting structure facing away from the inner pot. When the second limiting structure abuts against the first limiting structure, the floating heating element stops moving.
2. The cooking utensil according to claim 1, characterized in that, The fixed heating element is fixedly connected to the outer pot, and the first elastic element is connected between the floating heating element and the outer pot.
3. The cooking utensil according to claim 1, characterized in that, The first limiting structure extends outward relative to the fixed heating element, and the second limiting structure extends outward relative to the floating heating element; The first limiting structure has a first chamfer at the position for abutting against the second limiting structure, and the second limiting structure is adapted to abut against the first chamfer.
4. The cooking utensil according to claim 3, characterized in that, The fixed heating element is provided with a first heating surface, and the surface that forms the first chamfer and faces the second limiting structure is the first limiting surface. The included angle between the first limiting surface and the first heating surface is a preset included angle, which is 30°~60°.
5. The cooking utensil according to claim 4, characterized in that, The second limiting structure has a second chamfer at the position where it abuts against the first limiting structure, and the second chamfer corresponds to the first chamfer.
6. The cooking utensil according to claim 1, characterized in that, The first limiting structure extends outward relative to the fixed heating element, and the second limiting structure extends outward relative to the floating heating element; The first limiting structure has a first stepped surface at the position for abutting with the second limiting structure, and the second limiting structure has a second stepped surface at the position for abutting with the first limiting structure, the second stepped surface being adapted to abut against the first stepped surface.
7. The cooking utensil according to any one of claims 1 to 6, characterized in that, The first limiting structure and the fixed heating element are integrally formed, and / or the second limiting structure and the floating heating element are integrally formed, and / or the fixed heating element and the floating heating element are two parts obtained by splitting the heat plate.
8. The cooking utensil according to any one of claims 1 to 6, characterized in that, Both the fixed heating element and the floating heating element are located at the bottom of the mounting cavity, with the floating heating element surrounding the fixed heating element. or, Both the fixed heating element and the floating heating element are located at the bottom of the mounting cavity, with the fixed heating element surrounding the floating heating element.
9. The cooking utensil according to any one of claims 1 to 6, characterized in that, The number of the first elastic elements is multiple, and the multiple first elastic elements are evenly distributed between the floating heating element and the outer pot.
10. The cooking utensil according to any one of claims 1 to 6, characterized in that, It also includes a thermostat, which is in contact with the fixed heating element and is used to detect the temperature of the fixed heating element; Alternatively, it may also include a thermostat, wherein the fixed heating element provides heat to the inner pot by abutting against the inner pot, the temperature sensing part of the thermostat is spaced apart from the fixed heating element, the thermostat is used to detect the temperature of the inner pot, and the floating heating element is spaced apart from the inner pot when the second limiting structure abuts against the first limiting structure.