Cooking utensil

Abstract

The utility model discloses a cooking utensil, and relates to the technical field of cooking utensils, the cooking utensil comprises a utensil, the utensil comprises a utensil body, a base and an elastic piece, the utensil body is provided with a magnetic induction heating part, and the magnetic induction heating part can generate electromagnetic induction heating under the action of an electromagnetic field generated by an electromagnetic coil; the base is arranged at the bottom of the vessel body, and the vessel body can move relative to the base; the elastic piece is connected with the vessel and the base and can promote the magnetic induction heating part to be away from the electromagnetic coil when the weight of the to-be-heated object in the vessel body is reduced. According to the technical scheme provided by the utility model, the anti-dry-burning response speed can be improved, and the use safety of the cooking utensil is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensils technology, and in particular to a cooking utensil. Background Technology

[0002] Cooking appliances, such as kettles or formula makers that use electromagnetic heating, are often affected by the material of their bodies, which directly impacts the healthiness of the water they hold. Therefore, these kettles are typically made of healthier materials like stainless steel or glass. However, electromagnetic heating is highly efficient and the heat is relatively concentrated. If the water level in the kettle is low or there is no water, it can easily dry-burn and damage the kettle. For example, stainless steel kettles can turn black from dry-burning, or glass kettles can easily crack due to high temperatures.

[0003] In existing technologies, a temperature probe is typically installed on the electromagnetic heating device (such as an induction cooker), and the probe is in contact with the top glass surface of the device. When the cookware becomes dry-burning, the temperature of the cookware rises rapidly and is transferred to the top glass surface. The temperature probe detects that the top glass exceeds a preset temperature and then controls the electromagnetic heating device to cut off power and stop operating, thus preventing further dry-burning. However, it typically takes 3 to 5 minutes, or even longer, for the high temperature of the cookware to reach the temperature probe after dry-burning begins. Therefore, this method of preventing dry-burning using temperature detection has a lag, resulting in the electromagnetic heating device not cutting off power in time, which can easily damage the cookware and cause high-temperature safety accidents. Utility Model Content

[0004] The main purpose of this invention is to provide a cooking appliance that improves the response speed of anti-dry burning and enhances the safety of using the cooking appliance.

[0005] To achieve the above objectives, the cooking utensil proposed in this utility model includes a vessel, which comprises:

[0006] The vessel body is equipped with a magnetic heating element, which can generate electromagnetic induction heating under the action of the electromagnetic field generated by the electromagnetic coil.

[0007] A base, disposed at the bottom of the vessel body, wherein the vessel body is movable relative to the base; and

[0008] An elastic element connects the vessel body and the base, and is able to move the magnetic heating element away from the electromagnetic coil when the weight of the object to be heated inside the vessel body decreases.

[0009] In one embodiment, the elastic element is configured to be made of non-magnetic metal, silicone, or rubber.

[0010] In one embodiment, the vessel further includes a connecting seat disposed at the bottom of the vessel body, the connecting seat being movably connected to the base, and the elastic member connecting the connecting seat and the base.

[0011] In one embodiment, the connecting seat has a clearance hole in the middle, and the bottom wall of the vessel body extends into the clearance hole. The bottom wall of the vessel body is set as the magnetic heating part, or the magnetic heating part is set on the bottom wall of the vessel body.

[0012] In one embodiment, a plurality of elastic elements are provided, and the plurality of elastic elements are distributed at circumferential intervals along the relief hole.

[0013] In one embodiment, the base covers the area below the clearance hole.

[0014] In one embodiment, the inner side of the relief hole is provided with a first mounting groove, the base is provided with a corresponding second mounting groove, one end of the elastic member is inserted into the first mounting groove, and the other end is inserted into the second mounting groove.

[0015] In one embodiment, the edge of the first mounting groove abuts against the edge of the second mounting groove to define the lower limit position of the connector.

[0016] In one embodiment, one of the connecting seat and the base is provided with a guide post, and the other is provided with a guide hole. The guide post is slidably inserted into the guide hole along the moving direction of the connecting seat.

[0017] In one embodiment, the guide hole includes a first hole segment and a second hole segment that are connected to each other. The diameter of the second hole segment is smaller than that of the first hole segment. The peripheral side of the guide post is provided with a limiting protrusion. The guide post can elastically deform so that the limiting protrusion passes through the second hole segment and is inserted into the first hole segment. The limiting protrusion can abut against the step between the second hole segment and the first hole segment to limit the upward movement limit position of the connecting seat.

[0018] In one embodiment, multiple guide posts and elastic elements are spaced apart circumferentially, and the multiple elastic elements and multiple guide posts are alternately distributed circumferentially.

[0019] In one embodiment, the lower side of the connecting seat is provided with a downward-facing receiving groove, the base can be at least partially accommodated in the receiving groove, and the guide hole is provided at the bottom of the receiving groove.

[0020] In one embodiment, the vessel body moves relative to the base to have a heating position and an anti-dry-burning position. The heating position corresponds to a state where the total weight of the vessel is above a first weight value, and the anti-dry-burning position corresponds to a state where the total weight of the vessel is above a second weight value but below the first weight value, wherein the second weight value is less than the first weight value. In the anti-dry-burning position, the distance between the magnetic heating element and the lower surface of the base ranges from 11 mm to 20 mm.

[0021] In one embodiment, the heating position includes a minimum heating position, which corresponds to the state where the vessel is at its maximum weight. At the minimum heating position, the distance between the magnetic heating element and the lower surface of the base ranges from 5 mm to 9.5 mm, and / or, there is a gap between the magnetic heating element and the base.

[0022] In one embodiment, the travel distance of the vessel body ranges from 3 mm to 8 mm.

[0023] In one embodiment, the first weight value is set as the sum of the weight of the vessel itself and the weight of the object to be heated, which accounts for 5% to 80% of the total weight of the vessel.

[0024] In one embodiment, the second weight value is set as the weight of the vessel itself.

[0025] In one embodiment, the second weight value is set as the sum of the weight of the vessel itself and the weight of the object to be heated, which accounts for 0.1% to 10% of the total weight of the vessel.

[0026] In one embodiment, the vessel further includes a shell that covers at least the peripheral side of the vessel body, and the connecting seat is detachably connected to the shell, or the connecting seat is integrally formed with the shell.

[0027] In one embodiment, the outer shell is provided with a hook, and the connecting seat is provided with a locking hole corresponding to the hook. The locking hole includes a third hole segment and a fourth hole segment that are connected. The opening width of the third hole segment is greater than the opening width of the fourth hole segment. The hook can be inserted into the third hole segment and, after rotating circumferentially, lock onto the inner side of the fourth hole segment.

[0028] In one embodiment, the connecting seat is integrally formed from the vessel body, or the connecting seat and the vessel body are separately formed and then installed as one unit.

[0029] In one embodiment, the cooking appliance further includes an electromagnetic heating device having the electromagnetic coil, and the dish is placed on the working surface of the electromagnetic heating device via the base.

[0030] In this invention, the elastic element adapts to changes in the weight of the vessel, rapidly lifting it to a position where the magnetic heating element is no longer within the effective sensing area when the water level inside the vessel is decreasing and dry-burning is imminent. This prevents damage from dry-burning. Thus, this invention achieves dry-burn prevention by mechanically lifting the vessel in response to a decrease in its weight. Compared to existing dry-burn prevention technologies using temperature probes, this method improves the response speed and enhances the safety of the cooking appliance. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 A cross-sectional view of an embodiment of the vessel provided by this utility model;

[0033] Figure 2 for Figure 1 A magnified view of the area where the elastic element is located, at which point the connecting seat is in the anti-dry-burning position;

[0034] Figure 3 for Figure 2 Another enlarged view of the structure shown, with the connector in its lowest heating position;

[0035] Figure 4 for Figure 1 A structural schematic diagram of the connecting seat, base, and elastic element in the diagram;

[0036] Figure 5 for Figure 4 A cross-sectional view of the structure shown;

[0037] Figure 6 for Figure 4 The structure shown is a partial cross-sectional view at the guide post.

[0038] Explanation of icon numbers:

[0039] 100. Vessel; 110. Connecting seat; 111. Clearance hole; 112. First mounting groove; 113. Guide hole; 114. First hole section; 115. Second hole section; 116. Receiving groove; 117. Locking hole; 118. Third hole section; 119. Fourth hole section; 120. Base; 121. Second mounting groove; 122. Guide post; 123. Limiting protrusion; 130. Elastic element; 140. Vessel body; 141. Magnetic heating element; 150. Outer shell; 151. Hook.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] Cooking appliances, such as kettles or formula makers that use electromagnetic heating, are often affected by the material of their bodies, which directly impacts the healthiness of the water they hold. Therefore, these kettles are typically made of healthier materials like stainless steel or glass. However, electromagnetic heating is highly efficient and the heat is relatively concentrated. If the water level in the kettle is low or there is no water, it can easily dry-burn and damage the kettle. For example, stainless steel kettles can turn black from dry-burning, or glass kettles can easily crack due to high temperatures.

[0045] In existing technologies, a temperature probe is typically installed on the electromagnetic heating device (such as an induction cooker), and the probe is in contact with the top glass surface of the device. When the cookware becomes dry-burning, the temperature of the cookware rises rapidly and is transferred to the top glass surface. The temperature probe detects that the top glass exceeds a preset temperature and then controls the electromagnetic heating device to cut off power and stop operating, thus preventing further dry-burning. However, it typically takes 3 to 5 minutes, or even longer, for the high temperature of the cookware to reach the temperature probe after dry-burning begins. Therefore, this method of preventing dry-burning using temperature detection has a lag, resulting in the electromagnetic heating device not cutting off power in time, which can easily damage the cookware and cause high-temperature safety accidents.

[0046] In view of this, the present invention proposes a cooking appliance that can improve the response speed of anti-dry burning and improve the safety of using the cooking appliance.

[0047] Please see Figures 1 to 6 , Figures 1 to 2 , Figures 4 to 6 All the connectors 110 shown are in the anti-dry-burning position. Figure 3 The connecting base 110 shown is in the lowest heating position. The cooking appliance includes an electromagnetic heating device (not shown in the attached diagram) and a vessel 100. The vessel 100 includes a vessel body 140, which is used to hold the object to be heated. The vessel 100 includes, but is not limited to, a kettle, milk pot, frying pan, or soup pot. The electromagnetic heating device includes, but is not limited to, a flat induction cooker or a concave induction cooker. That is, the application scenarios of this cooking appliance include, but are not limited to, kettles, formula makers, egg cookers, and induction cookers; specific application scenarios are not exhaustive. The object to be heated includes, but is not limited to, liquids or solid-liquid mixtures. Liquids can be purified water, tap water, or milk, and solid-liquid mixtures can be porridge, soup, or oatmeal.

[0048] To facilitate the writing and understanding of the scheme, the following explanation will use the example of vessel 100 as a kettle and vessel body 140 as a pot for holding water.

[0049] In this embodiment, the pot body is made of materials including, but not limited to, stainless steel or glass. By incorporating a magnetically conductive structure, such as a magnetically conductive film, at the bottom of the glass pot body, it can be used with an electromagnetic heating device. Specifically, the magnetically conductive film heats up under the influence of the alternating magnetic field generated by the electromagnetic heating device. The heat is transferred from the magnetically conductive film to other parts of the pot body, and then to the object to be heated inside the pot.

[0050] Without loss of generality, the maximum effective induction height of the electromagnetic heating device is defined as H. When the height difference between the bottom wall of the kettle and the working surface of the electromagnetic heating device is greater than H, the bottom wall of the kettle cannot undergo electromagnetic induction and heat generation because it is outside the effective induction area. When the height difference between the bottom wall of the kettle and the working surface of the electromagnetic heating device is less than or equal to H, the bottom wall of the kettle can undergo electromagnetic induction and heat generation. The value of H can range from 5 mm to 15 mm; for example, H can be 10 mm.

[0051] Please see Figures 1 to 3 In one embodiment of this utility model, the vessel 100 includes a vessel body 140, a base 120, and an elastic element 130. The vessel body 140 is placed on the working surface of the electromagnetic heating device via the base 120. The vessel body 140 is provided with a magnetic heating part 141, which can generate electromagnetic induction heating under the action of the electromagnetic field generated by the electromagnetic coil. The base 120 is located at the bottom of the vessel body 140, and the vessel body 140 can move relative to the base 120. The elastic element 130 connects the vessel body 140 and the base 120, and can cause the magnetic heating part 141 to move away from the electromagnetic coil when the weight of the object to be heated inside the vessel body 140 decreases.

[0052] It is understandable that when the cooking appliance continues to operate, causing the water in the vessel body 140 to be continuously heated, as the water level in the vessel body 140 gradually decreases due to evaporation, the vessel body 140 will be gradually lifted away from the working surface and electromagnetic coil of the electromagnetic heating device under the elastic force of the elastic member 130, until the height difference between the magnetic heating part 141 and the working surface of the electromagnetic heating device exceeds the maximum effective sensing height H (i.e., the magnetic heating part 141 leaves the effective sensing area). After the magnetic heating part 141 leaves the effective sensing area, it will no longer generate electromagnetic induction and heat, thereby preventing the water in the vessel body 140 from further decreasing until it reaches a state of dry burning. It is understandable that since the vessel body 140 is always outside the effective sensing area after being lifted, even if the electromagnetic heating device continues to operate, the magnetic heating part 141 will no longer generate electromagnetic induction and heat the water in the vessel body 140.

[0053] In this invention, the elastic element 130 utilizes its ability to adapt to changes in the weight of the vessel body 140. When the water level in the vessel body 140 decreases and dry-burning is imminent, the element quickly lifts the vessel body 140 to a position where its magnetic heating element 141 is removed from the effective sensing area, thus preventing damage from dry-burning. In this way, the invention achieves dry-burn prevention by mechanically lifting the vessel body 140 in response to a decrease in its weight. Compared to existing dry-burn prevention technologies using temperature probes, this method improves the response speed and enhances the safety of the cooking appliance.

[0054] Optionally, the bottom wall of the vessel body 140 can be provided as a magnetic heating element 141. For example, when the vessel body 140 is made of stainless steel, its bottom wall itself can generate magnetic heating. Alternatively, in other embodiments, the magnetic heating element 141 can be located on the bottom wall of the vessel body 140. For example, when the vessel body 140 is made of glass, a magnetically conductive film can be provided on the bottom wall of the glass vessel, and this film can serve as the magnetic heating element 141 for magnetic heating. In other embodiments, the magnetic heating element 141 can be located on the side wall of the vessel body 140, or it can be located on both the side wall and the bottom wall of the vessel body 140.

[0055] The vessel body 140 is movable relative to the base 120, having a heating position and an anti-dry-burning position. The heating position corresponds to a state where the total weight of the vessel 100 is above a first weight value, and the anti-dry-burning position corresponds to a state where the total weight of the vessel 100 is above a second weight value but below the first weight value, where the second weight value is less than the first weight value. The elastic deformation of the elastic element 130 in the heating position is greater than that in the anti-dry-burning position.

[0056] It should be noted that the total weight of vessel 100 refers to the sum of the weight of vessel 100 itself and the weight of the water it contains. Since the amount of water in vessel 100 depends on the user's habits and needs, the total weight of vessel 100 may vary each time the cooking utensil is used. It can be understood that the second weight value is greater than or equal to the weight of vessel 100 itself.

[0057] Specifically, the vessel body 140 is placed on the working surface of the electromagnetic heating device via the base 120, and the elastic element 130 is compressed and deformed by the gravity of the vessel body 140 located thereon. The elastic deformation of the elastic element 130 increases as the total weight of the vessel 100 increases, and correspondingly, the height difference between the magnetic heating part 141 and the working surface of the electromagnetic heating device decreases as the total weight of the vessel 100 increases.

[0058] When the total weight of the vessel 100 is its own weight, that is, when there is no water in the vessel body 140, the elastic deformation of the elastic element 130 is small, the height difference between the magnetic heating part 141 and the working surface of the electromagnetic heating device is the largest, and this height difference is greater than the maximum effective induction height H. Therefore, the magnetic heating part 141 cannot generate electromagnetic induction and heat at this time.

[0059] When the total weight of the vessel 100 is above the second weight value but below the first weight value, the elastic deformation of the elastic element 130 increases, and the height difference between the magnetic heating part 141 and the working surface of the electromagnetic heating device decreases. However, this height difference is still greater than the maximum effective induction height H. Therefore, the vessel body 140 cannot generate electromagnetic induction and heat at this time.

[0060] When the total weight of the vessel 100 is above the first weight value, the elastic deformation of the elastic member 130 further increases, and the height difference between the magnetic heating part 141 and the working surface of the electromagnetic heating device further decreases, and this height difference is lower than or equal to the maximum effective induction height H. Therefore, the magnetic heating part 141 can generate electromagnetic induction and heat up to heat the water in the vessel body 140.

[0061] The first weight value and the second weight value can be flexibly set according to product design requirements. Specifically, the first weight value can be set as the sum of the weight of the vessel 100 itself and the weight of the object to be heated, which accounts for 5% to 80% of the total weight within the vessel 100. Of course, in other embodiments, the first weight value can also be set as the sum of the weight of the vessel 100 itself and the weight of the object to be heated, which accounts for 1% to 4.9% (or 80.1% to 100%) of the total weight within the vessel 100.

[0062] Optionally in this embodiment, the second weight value is set as the sum of the weight of the vessel 100 itself and the weight of the object to be heated, which accounts for 0.1% to 10% of the total weight within the vessel 100. Of course, in other embodiments, the second weight value can also be set as the weight of the vessel 100 itself, or the second weight value can be set as the sum of the weight of the vessel 100 itself and the weight of the object to be heated, which accounts for 10.1% to 50% of the total weight within the vessel 100.

[0063] For example, in one embodiment, when the actual water volume in the vessel 100 accounts for 20%, that is, when the ratio of the actual water volume to the maximum water volume (corresponding to the highest water level) is 20%, the first weight value is set as the sum of the weight of the vessel 100 itself and the weight of the water inside it at this time; when the actual water volume in the vessel 100 accounts for 3%, the second weight value is set as the sum of the weight of the vessel 100 itself and the weight of the water inside it at this time.

[0064] It is understandable that if the first weight value is too large, users would need to fill the container with the maximum or near-maximum amount of water each time for the vessel body 140 to sink to the effective sensing area and heat up. This would result in the cooking appliance being less flexible in its use and unable to adapt well to different user needs. If the first weight value is too small, the difference between the first and second weight values ​​would be too small, thus increasing the requirements for the deformation sensitivity of the elastic element 130, which is detrimental to the product yield and cost control.

[0065] If the second weight value is too large, the user may not be able to boil a small amount of water because the amount is insufficient to lower the vessel body 140 to the effective sensing area. This results in a lack of flexibility in the use of the cooking appliance and an inability to adapt well to different user needs. If the second weight value is too small, the small amount of water in the vessel body 140 will evaporate quickly under the existing high temperature due to the high heating efficiency of the electromagnetic heating device, causing the vessel body 140 to enter a dry-boil state. Specifically, if the water content in the glass kettle is low, even if the glass kettle is raised out of the effective sensing area, the small amount of water inside will evaporate quickly under the high temperature, making the glass kettle more prone to cracking.

[0066] Optionally, the elastic element 130 is made of non-magnetic metal, silicone, or rubber. "Non-magnetic" means it will not be magnetized by the magnetic field of the electromagnetic heating device. The non-magnetic metal can be a demagnetized steel spring or steel spring sheet, or an aluminum spring, etc. In this embodiment, the elastic element 130 is configured as a demagnetized steel compression spring. Of course, in other embodiments, the elastic element 130 can also be a silicone body or a rubber body, etc.

[0067] Please see Figures 3 to 5 Optionally, the connecting seat 110 has a clearance hole 111 in the middle, into which the bottom wall of the vessel body 140 extends. This saves material costs during manufacturing the connecting seat 110 by providing the clearance hole 111. Furthermore, after the bottom wall of the vessel body 140 descends to the effective sensing area, the magnetic heating element 141 on the bottom wall of the vessel body 140 can be positioned as close as possible to the electromagnetic heating device, resulting in a more significant electromagnetic induction heating effect. Of course, in other embodiments, the clearance hole 111 may not be provided.

[0068] Please see Figure 5To prevent users from accidentally touching the hot bottom wall of the vessel body 140 and getting burned, the base 120 can optionally cover the area below the clearance hole 111. In this embodiment, the bottom wall of the base 120 is a complete plate-like structure and conforms to the bottom wall of the vessel body 140. Thus, by using the base 120 to movably cover the area below the vessel body 140, the bottom wall of the vessel body 140 is prevented from being directly exposed, making it impossible for users to directly touch the bottom wall of the vessel body 140 and thus preventing burns from accidental contact with the hot bottom wall of the vessel body 140. Of course, in other embodiments, the base 120 may also have weight-reducing holes corresponding to the clearance hole 111.

[0069] Please see Figure 4 and Figure 5 Optionally, multiple elastic elements 130 are provided, and the multiple elastic elements 130 are distributed at intervals along the circumference of the connecting seat 110. Specifically, in an embodiment where a clearance hole 111 is provided in the middle of the connecting seat 110, the multiple elastic elements 130 are distributed at intervals along the circumference of the clearance hole 111. It should be noted that in this embodiment of the present invention, "multiple" refers to two or more. In this way, the multiple elastic elements 130 respectively correspond to multiple positions of supporting the vessel body 140 on the periphery, which can improve the smoothness and stability of the lifting and lowering movement of the vessel body 140. Of course, in other embodiments, only one elastic element 130 may be provided.

[0070] Please see Figure 2 and Figure 5 Optionally, the inner side of the clearance hole 111 is provided with a first mounting groove 112, and the base 120 is provided with a corresponding second mounting groove 121. One end of the elastic member 130 is inserted into the first mounting groove 112, and the other end is inserted into the second mounting groove 121. Specifically, the elastic member 130 can be pre-installed in one of the first mounting groove 112 and the second mounting groove 121. When the connecting seat 110 and the base 120 are assembled or fixed together, the first mounting groove 112 and the second mounting groove 121 are arranged facing each other, and the elastic member 130 will be inserted into the other of the first mounting groove 112 and the second mounting groove 121, thereby completing the installation of the elastic member 130. In this way, it is convenient to install, disassemble and replace the elastic member 130, and the sidewalls of the first mounting groove 112 and the second mounting groove 121 can also play a limiting and guiding role, so that the elastic member 130 can more smoothly undergo elastic deformation in the vertical direction. Of course, in other embodiments, only the first mounting groove 112 or the second mounting groove 121 may be provided, or neither the first mounting groove 112 nor the second mounting groove 121 may be provided. For example, a mounting post may be provided, and the elastic element 130 may be sleeved on the outer periphery of the mounting post.

[0071] Please see Figure 3Optionally, the edge of the first mounting groove 112 abuts against the edge of the second mounting groove 121 to define the lower limit position of the connecting seat 110. Specifically, the heating position includes a minimum heating position, which corresponds to the state where the total weight of the vessel 100 is at its maximum weight value, and the minimum heating position corresponds to the lower limit position of the connecting seat 110. It should be noted that the state where the total weight of the vessel 100 is at its maximum weight value refers to the state where the vessel 100 contains the maximum amount of water, that is, the state where it contains water corresponding to the maximum water level. At this time, the edges of the first mounting groove 112 and the second mounting groove 121 abut against each other to define the lower limit position of the connecting seat 110 and the vessel 100, so that the vessel 100 can be placed relatively stably on the electromagnetic heating device. Thus, the structure is simple and easy to implement. Of course, in other embodiments, the lower limit position of the vessel 100 can also be defined by other structures.

[0072] It is understandable that when the vessel 100 is placed on the working surface of the electromagnetic heating device, the lower surface of the base 120 abuts against the working surface to receive support. At this time, the distance from the magnetic heating element 141 to the lower surface of the base 120 is its height difference from the working surface. Generally speaking, industry design standards typically require that the effective sensing area of ​​the electromagnetic heating device be an area located on its working surface with a height difference not exceeding 10 mm.

[0073] Therefore, please refer to Figure 2 Optionally, in the anti-dry-burning position, the distance D between the magnetic heating element 141 and the lower surface of the base 120 ranges from 11mm to 20mm. For example, the distance D can be 11mm, 12mm, 13mm, 14mm, or 15mm. By setting the distance D to 11mm to 20mm, the vessel 100 can be compatible with most electromagnetic heating devices on the market. It is understood that if the distance D is too large, it may cause instability of the vessel body 140 due to its high center of gravity, and a high failure rate due to excessive lifting and lowering stroke. Of course, in other embodiments, the distance D can also be in other ranges, for example, the distance D is greater than 20mm.

[0074] Please see Figure 3 Optionally, the heating position includes a minimum heating position, corresponding to the state where the vessel 100 is at its maximum weight. At the minimum heating position, the distance d between the magnetic heating element 141 and the lower surface of the base 120 ranges from 5 mm to 9.5 mm. For example, the distance d can be 5 mm, 6 mm, 7 mm, 8 mm, or 9 mm. This allows the vessel 100 to be compatible with most electromagnetic heating devices on the market. Of course, in other embodiments, the distance d can also be other ranges, for example, greater than 9.5 mm or less than 5 mm.

[0075] Please see Figure 3 Optionally, at the lowest heating position, there is a gap between the magnetic heating element 141 and the base 120. This arrangement, with the bottom wall of the vessel body 140 and the base 120 spaced apart, avoids the problem of the high-temperature vessel body 140 directly conducting heat to the base 120, thus preventing the base 120 from deforming or being damaged by heat. In particular, the base 120 is prone to heat damage when it is an injection-molded part.

[0076] Optionally, the travel distance of the vessel body 140 can range from 3mm to 8mm. It should be noted that the travel distance of the vessel body 140 refers to its distance from the anti-dry-burning position to the lowest heating position. For example, the travel distance of the vessel body 140 can be set to 3mm, 4mm, 5mm, or 6mm. This allows the vessel body 140 to have a reasonable lifting and lowering travel distance, avoiding instability due to an excessively high center of gravity and high failure rates due to excessively large lifting and lowering travel distances. Of course, in other embodiments, the travel distance of the vessel body 140 can also be other ranges, for example, greater than 8mm or less than 3mm.

[0077] Please see Figure 6 Optionally, one of the connecting seat 110 and the base 120 is provided with a guide post 122, and the other is provided with a guide hole 113. The guide post 122 is slidably inserted into the guide hole 113 along the moving direction of the connecting seat 110. In this way, by using the guide post 122 and the guide hole 113 in cooperation, the smoothness and stability of the lifting and lowering movement of the vessel body 140 can be improved. In this embodiment, specifically, the guide post 122 is provided on the base 120, and the guide hole 113 is provided on the connecting seat 110. Of course, in other embodiments, the guide post 122 and the guide hole 113 may not be provided.

[0078] Please see Figure 6Optionally, the guide hole 113 includes a first hole segment 114 and a second hole segment 115 that are connected. The diameter of the second hole segment 115 is smaller than that of the first hole segment 114. The peripheral side of the guide post 122 is provided with a limiting protrusion 123. The guide post 122 can elastically deform to allow the limiting protrusion 123 to pass through the second hole segment 115 and insert into the first hole segment 114. The limiting protrusion 123 can abut against the step between the second hole segment 115 and the first hole segment 114 to limit the upward movement limit position of the connecting seat 110. In this way, the limiting protrusion 123 abuts against the step between the second hole segment 115 and the first hole segment 114 to limit the upward movement limit position of the connecting seat 110 and the vessel 100, thereby preventing the connecting seat 110 and the base 120 from separating from each other. In other words, in this embodiment, the guide post 122 and the guide hole 113 cooperate to also serve as a snap-fit ​​installation, so as to realize the detachable installation of the connecting seat 110 and the base 120. The structure is simple and easy to implement.

[0079] Of course, in other embodiments, the connecting seat 110 and the base 120 may be connected by bolts, which have a threaded section and a smooth shaft section. The threaded section is used for screwing a nut, while the smooth shaft section is movably inserted through the connecting seat 110 to allow the connecting seat 110 to move up and down.

[0080] Please see Figure 4 Optionally, multiple guide posts 122 and elastic elements 130 are provided at circumferential intervals, with the multiple elastic elements 130 and multiple guide posts 122 alternating in the circumferential direction. In this embodiment, specifically, four elastic elements 130 and four guide posts 122 are provided, with the four guide posts 122 and four elastic elements 130 alternately distributed around the periphery of the clearance hole 111. This helps to improve the smoothness and stability of the lifting and lowering movement of the vessel 100.

[0081] Please see Figure 2 and Figure 3 Optionally, the lower side of the connecting seat 110 is provided with a downward-facing receiving groove 116, and the base 120 can be at least partially received in the receiving groove 116. In an embodiment where the connecting seat 110 is provided with a clearance hole 111, the clearance hole 111 optionally communicates with the bottom surface of the receiving groove 116. On the one hand, when using cooking utensils normally, users usually observe the utensil 100 from a top-down perspective. From this perspective, since the base 120 can be movably received under the connecting seat 110, it achieves better concealment, thus enhancing the perceived quality of the device. On the other hand, the base 120 being concealed within the receiving groove 116 avoids the problem of dust and water accumulation on the base 120.

[0082] Please see Figure 3Optionally, in the lowest heating position, the base 120 is completely housed within the receiving groove 116, and the lower surface of the connecting seat 110 is flush with the lower surface of the base 120. This improves the stability of the vessel body 140 in the lowest heating position.

[0083] Please see Figure 1 and Figure 2 Optionally, the vessel 100 also includes a shell 150, which at least covers the peripheral surface of the vessel body 140, and the connecting seat 110 is detachably connected to the shell 150. For example, the connecting seat 110 is detachably connected by screws or a snap-fit ​​structure. Of course, in other embodiments, the connecting seat 110 can also be assembled to the shell 150 by means of rivets or adhesives, or directly welded to the shell 150.

[0084] Of course, in other embodiments, the connecting seat 110 and the outer shell 150 can also be integrally formed, for example, the connecting seat 110 and the outer shell 150 can be integrally formed by injection molding. In this way, the structure is simple and easy to implement, and it can reduce the assembly time of the vessel 100 and improve the production efficiency of the vessel 100.

[0085] Please see Figure 3 and Figure 4 Furthermore, the outer casing 150 is provided with a hook 151, and the connecting seat 110 is provided with a corresponding hole 117 for the hook 151. The hole 117 includes a third hole segment 118 and a fourth hole segment 119 that are connected. The width of the opening of the third hole segment 118 is greater than the width of the opening of the fourth hole segment 119. The hook 151 can be inserted into the third hole segment 118 and, after rotating circumferentially, is locked onto the inner side of the fourth hole segment 119. In this way, locking and unlocking are achieved by rotating the hook 151 and the hole 117 relative to each other. The structure is simple and easy to install and disassemble.

[0086] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cooking utensil, characterized in that, Includes a vessel, said vessel comprising: The vessel body is equipped with a magnetic heating element, which can generate electromagnetic induction heating under the action of the electromagnetic field generated by the electromagnetic coil. A base, disposed at the bottom of the vessel body, wherein the vessel body is movable relative to the base; and An elastic element connects the vessel body and the base, and is able to move the magnetic heating element away from the electromagnetic coil when the weight of the object to be heated inside the vessel body decreases.

2. The cooking appliance as described in claim 1, characterized in that, The elastic element is made of non-magnetic metal, silicone, or rubber.

3. The cooking utensil as described in claim 1, characterized in that, The vessel also includes a connecting seat located at the bottom of the vessel body, the connecting seat being movably connected to the base, and the elastic element connecting the connecting seat and the base.

4. The cooking utensil as described in claim 3, characterized in that, The connecting seat has a clearance hole in the middle, and the bottom wall of the vessel body extends into the clearance hole. The bottom wall of the vessel body is set as the magnetic heating part, or the magnetic heating part is set on the bottom wall of the vessel body.

5. The cooking appliance as described in claim 4, characterized in that, The elastic element is provided in multiple ways, and the multiple elastic elements are distributed at intervals along the circumferential direction of the relief hole; And / or, the base covers the area below the clearance hole.

6. The cooking utensil as described in claim 4, characterized in that, The inner side of the clearance hole is provided with a first mounting groove, and the base is provided with a corresponding second mounting groove. One end of the elastic member is inserted into the first mounting groove, and the other end is inserted into the second mounting groove.

7. The cooking utensil as described in claim 6, characterized in that, The edge of the first mounting groove can abut against the edge of the second mounting groove to define the lower limit position of the connector.

8. The cooking utensil as described in claim 3, characterized in that, One of the connecting seat and the base is provided with a guide post, and the other is provided with a guide hole. The guide post is slidably inserted into the guide hole along the moving direction of the connecting seat.

9. The cooking appliance as described in claim 8, characterized in that, The guide hole includes a first hole segment and a second hole segment that are connected. The diameter of the second hole segment is smaller than that of the first hole segment. The guide post has a limiting protrusion on its peripheral side. The guide post can elastically deform so that the limiting protrusion passes through the second hole segment and is inserted into the first hole segment. The limiting protrusion can abut against the step between the second hole segment and the first hole segment to limit the upward movement limit position of the connecting seat. And / or, the guide posts and the elastic elements are provided in multiple circumferentially spaced apart, and the multiple elastic elements and the multiple guide posts are alternately distributed circumferentially; And / or, the lower side of the connector is provided with a downward-facing receiving groove, the base can be at least partially received in the receiving groove, and the guide hole is provided at the bottom of the receiving groove.

10. The cooking appliance as described in claim 3, characterized in that, The vessel also includes an outer shell, which at least covers the circumferential surface of the vessel body. The connecting seat is detachably connected to the outer shell, or the connecting seat is integrally formed with the outer shell.

11. The cooking appliance as described in claim 10, characterized in that, The outer shell is provided with a hook, and the connecting seat is provided with a locking hole corresponding to the hook. The locking hole includes a third hole segment and a fourth hole segment that are connected. The opening width of the third hole segment is greater than the opening width of the fourth hole segment. The hook can be inserted into the third hole segment and locked onto the inner side of the fourth hole segment after rotating circumferentially.

12. The cooking utensil as described in claim 3, characterized in that, The connecting seat is integrally formed from the vessel body, or the connecting seat and the vessel body are separately formed and then installed as one piece.

13. The cooking appliance as described in claim 1, characterized in that, The cooking appliance also includes an electromagnetic heating device with the electromagnetic coil, and the dish is placed on the working surface of the electromagnetic heating device via the base.

14. The cooking utensil as described in any one of claims 1 to 13, characterized in that, The vessel body moves relative to the base to have a heating position and an anti-dry-burning position. The heating position corresponds to a state in which the total weight of the vessel is above a first weight value. The anti-dry-burning position corresponds to a state in which the total weight of the vessel is above a second weight value but below the first weight value. The second weight value is less than the first weight value. At the anti-dry-burning position, the distance between the magnetic heating element and the lower surface of the base ranges from 11mm to 20mm; And / or, the heating position includes a minimum heating position, which corresponds to the state where the vessel is at its maximum weight value. At the minimum heating position, the distance between the magnetic heating element and the lower surface of the base ranges from 5 mm to 9.5 mm. And / or, there is a gap between the magnetic heating element and the base. And / or, the range of the movement stroke of the vessel body is 3mm to 8mm; And / or, the first weight value is set as the sum of the weight of the vessel itself and the weight of the object to be heated, which accounts for 5% to 80% of the total weight of the vessel. And / or, the second weight value is set as the weight of the vessel itself; or, the second weight value is set as the sum of the weight of the vessel itself and the weight of the object to be heated, which accounts for 0.1% to 10% of the total weight in the vessel.

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