Liquid heating device and kettle

Abstract

The utility model discloses a liquid heating device and kettle relates to domestic appliance technical field, wherein, liquid heating device includes heating base and kettle, the kettle with the heating base is set up in sections, and the kettle includes kettle body and heat conducting base, the kettle body includes integrative bottom wall and side wall, the heat conducting base is located the bottom of kettle body, and is connected with the bottom wall of kettle body through heat conduction, and the heating base heats the kettle through heating the heat conducting base. The technical scheme provided by the utility model can improve the use safety and service life of liquid heating device.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a liquid heating device and a kettle. Background Technology

[0002] In the prior art, the container part of some liquid heating devices is made of materials such as glass or ceramic. However, heating containers made of such materials are prone to breakage if bumped during handling. Furthermore, during heating and use, the heating container is prone to cracking due to sudden cooling or heating, which is detrimental to the safety and service life of the liquid heating container. Utility Model Content

[0003] The main purpose of this invention is to provide a liquid heating device and a kettle, which aims to improve the safety and service life of the liquid heating device.

[0004] To achieve the above objectives, this utility model proposes a liquid heating device with a heating base;

[0005] A kettle, wherein the kettle and the heating base are separately disposed, the kettle includes a kettle body and a heat-conducting base, the kettle body includes an integrally formed bottom wall and side wall, the heat-conducting base is disposed at the bottom of the kettle body and is heat-conductingly connected to the bottom wall of the kettle body, and the heating base heats the kettle by heating the heat-conducting base.

[0006] In one embodiment, the heat-conducting base includes a heat-conducting bottom shell disposed on the bottom wall of the kettle body, and a support structure surrounding the outer periphery of the heat-conducting bottom shell, wherein the bottom surface of the support structure is lower than the bottom surface of the heat-conducting bottom shell.

[0007] In one embodiment, the height difference between the bottom surface of the support structure and the bottom surface of the heat-conducting base shell is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0008] In one embodiment, the support structure is configured with a support ring; or, the support structure is configured as a plurality of support feet spaced apart along the bottom wall of the kettle body.

[0009] In one embodiment, the heat-conducting base further includes an annular bracket, and the bottom wall of the kettle body is provided with a mounting groove. The annular bracket is fixed to the mounting groove, and the support structure and the heat-conducting bottom shell are both mounted on the annular bracket.

[0010] In one embodiment, the annular bracket includes an annular main body and a connecting portion disposed on the lower side of the annular main body. The annular main body is bonded to the groove wall of the mounting groove, and the connecting portion is used at least for mounting the support structure.

[0011] In one embodiment, the annular main body has a receiving groove on the side facing the pot body, and adhesive is filled into the receiving groove and bonded to the groove wall of the mounting groove.

[0012] In one embodiment, the support structure is made of a heat-insulating material.

[0013] In one embodiment, thermally conductive adhesive is filled between the thermally conductive bottom shell and the bottom wall of the kettle body.

[0014] In one embodiment, the diameter of the heating base is smaller than the inner diameter of the support structure; and / or, the heating base includes a heating plate for heating the heat-conducting base, and the outer periphery of the heating plate is provided with a clearance groove or clearance step to avoid the support structure.

[0015] In one embodiment, at least the bottom of the kettle body is made of glass or ceramic; or, the heat-conducting base is made of heat-conducting metal.

[0016] In one embodiment, the flatness of the bottom surface of the heat-conducting base that contacts the heating base is less than the flatness of the bottom surface of the kettle body.

[0017] In one embodiment, the flatness of the bottom surface of the kettle body is less than or equal to 0.5 mm and greater than or equal to 0.3 mm.

[0018] The flatness of the bottom surface of the heat-conducting base that contacts the heating base is less than or equal to 0.1 mm and less than or equal to 0 mm.

[0019] This utility model also proposes a kettle, including a kettle body and a heat-conducting base. The kettle body includes an integrally formed bottom wall and side wall. The heat-conducting base is disposed at the bottom of the kettle body and is heat-conductingly connected to the bottom wall of the kettle body.

[0020] This invention features a heat-conducting base at the bottom of the kettle body, separating the kettle from the heating base. Compared to integrated liquid heating devices, this design reduces the weight of the heating base, making it easier for users to add or drain water. Furthermore, it eliminates the need to worry about water entering the heating base during cleaning, thus simplifying the kettle's cleaning process. The kettle body includes an integrally formed bottom wall and side walls. The heat-conducting base is located at the bottom of the kettle body and is at least thermally connected to the bottom wall. The heating base heats the kettle by heating the heat-conducting base. This heat-conducting base covers the outer perimeter of the bottom of the kettle body, providing protection and reducing the risk of breakage due to impact. It also prevents the kettle from directly contacting surfaces, thus reducing the risk of breakage due to sudden cooling. Moreover, even if the kettle body breaks, the liquid will not directly flow into the heating base, affecting the conductive connections of the electrical components, further improving the safety of the liquid heating container. In the event of a breakage, the user can simply purchase a replacement kettle, minimizing financial loss. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the structure of a liquid heating device in the prior art;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the kettle in the image;

[0024] Figure 3 A cross-sectional view of a kettle in one embodiment of the liquid heating device provided by this utility model;

[0025] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 for Figure 3 Exploded view of the kettle;

[0027] Figure 6 for Figure 3 Cross-sectional view of the assembly structure of the middle body and the ring support;

[0028] Figure 7 for Figure 3 A cross-sectional view of the heating base in a liquid heating device;

[0029] Figure 8 for Figure 3 Cross-sectional view of the liquid heating device.

[0030] Explanation of icon numbers:

[0031] 1. Kettle;

[0032] 11. Kettle body; 111. Bottom wall; 112. Side wall; 113. Mounting slot;

[0033] 120. Thermally conductive base; 12. Thermally conductive bottom shell; 121. Clearance notch;

[0034] 13. Support structure; 131. Support ring; 132. Mounting part;

[0035] 14. Annular bracket; 141. Annular main body; 142. Connecting part; 143. Receiving groove; 15. Annular buffer; 16. Thermally conductive adhesive; 17. Fastener;

[0036] 4. Heating base; 41. Heating plate; 42. Clearance groove; 43. Electrical control components; 44. Housing;

[0037] 2. Kettle; 21. Bottom wall; 22. Groove;

[0038] 3. Heating base; 32. Heating plate.

[0039] 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

[0040] 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.

[0041] 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.

[0042] 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.

[0043] This utility model proposes a liquid heating device, aiming to improve the safety and service life of liquid heating devices. The liquid heating container can be an electric kettle, a health-preserving kettle, etc.

[0044] Please see Figures 3 to 6 In one embodiment of this utility model, the liquid heating device includes:

[0045] Heating base 4;

[0046] The kettle 1 is separately disposed from the heating base 4. The kettle 1 includes a kettle body 11 and a heat-conducting base 120. The kettle body 11 includes an integrally formed bottom wall 111 and a side wall 112. The heat-conducting base 120 is disposed at the bottom of the kettle body 11 and is at least thermally connected to the bottom wall 111 of the kettle body 11. The heating base 4 heats the kettle 1 by heating the heat-conducting base 120.

[0047] In this embodiment, the kettle 1 and the heating base 4 are set separately. Compared with the integrated liquid heating device, this solution reduces the weight of the heating base 4, which makes it easier for users to add or guide water. Moreover, when cleaning, there is no need to consider the problem of water entering the heating base 4, which makes it easier to clean the kettle 1.

[0048] The bottom wall 111 and side wall 112 of the pot body 11 are integrally formed, that is, at least the bottom of the pot body 11 is integrally formed. In this solution, at least the bottom of the pot body 11 is made of glass or ceramic. If the side wall 112 of the pot body 11 is integrally formed, that is, the entire pot body 11 is integrally formed, that is, the entire pot body 11 is made of glass or ceramic. If the side wall 112 of the pot body 11 is formed separately (such as the spout or handle of the pot body 11 being made of heat-insulating material), then the bottom of the pot body 11 is made of glass or ceramic.

[0049] In the prior art, glass or ceramic kettles are prone to impacts during use, especially the bottom and corners of the kettle body 11. Due to the brittle and hard nature of glass and ceramic, expansion can easily cause the kettle body 11 to crack. Furthermore, if the kettle body 11 comes into direct contact with a cold object such as a table after heating, it is easy to crack due to sudden cooling, resulting in damage to the kettle 1 and affecting the service life of the liquid heating device. In addition, if there is hot water inside the kettle body 11, it is easy to scald the user, which is detrimental to the safety of using the kettle 1. Therefore, the bottom of the kettle body 11 is provided with a heat-conducting base 120. The heat-conducting base 120 is located on the outside of the kettle body 11, so that the heat-conducting base 120 can cover the outer perimeter of the bottom of the kettle body 11, thereby providing protection for the bottom of the kettle 1, reducing the chance of the kettle body 11 cracking due to impact, and preventing the kettle body 11 from directly contacting the table, thereby reducing the chance of the kettle body 11 cracking due to sudden cooling. Furthermore, even if the kettle body 11 breaks, the liquid will not flow directly into the heating base 4, affecting the conductive connection of the electrical control component 43, thus further improving the safety of the liquid heating container. Also, if the kettle body 11 breaks, the user can simply purchase a separate kettle 1, reducing the user's losses.

[0050] The heat-conducting base 120 is located at the bottom of the pot body 11. The heat-conducting base 120 can be located on the bottom wall of the pot body 11, or on the bottom wall 111 and part of the side wall 112 of the pot body 11.

[0051] Please see Figure 4 In this embodiment of the invention, the heat-conducting base 120 includes a heat-conducting bottom shell 12 disposed on the bottom wall of the kettle body 11, and a support structure 13 surrounding the outer periphery of the heat-conducting bottom shell 12, wherein the bottom surface of the support structure 13 is lower than the bottom surface of the heat-conducting bottom shell 12. Specifically, since the kettle 1 has a high temperature after being heated, when it is placed directly on the table, the heat-conducting bottom shell 12 will directly contact the table, which may easily burn the table. Therefore, the bottom surface of the support structure 13 is lower than the bottom surface of the heat-conducting bottom shell 12. That is, when the kettle body 11 is placed on the table, the support structure 13 supports the table, while there is a certain gap between the heat-conducting bottom shell 12 and the table, thereby avoiding the possibility of the heat-conducting bottom shell 12 directly contacting the table and burning the table. In addition, the support structure 13 surrounding the outer periphery of the heat-conducting structure helps to further protect the heat-conducting bottom shell 12 and the bottom wall 111 of the kettle body 11 in the circumferential direction, thereby improving the service life of the kettle 1. The heat-conducting bottom shell 12 and the supporting structure 13 can be integrally formed or separately formed.

[0052] Furthermore, the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12 is greater than or equal to 0.5mm and less than or equal to 2mm. When the liquid heating container is placed on the table, the support structure directly contacts the table, and the distance between them is 0. At this time, the distance L1 from the bottom surface of the heat-conducting base shell to the table is the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12, where 0.5mm≤L1≤2mm. This ensures that the heat-conducting base shell 12 is suspended relative to the table and facilitates the placement of the kettle 1 and the heating base 4. Specifically, the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12 can be 0.5mm, 0.7mm, 0.9mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, etc.

[0053] See Figure 1 and Figure 2 Existing liquid heating devices include a kettle 2 and a heating base 3. The kettle 2 is placed directly on the heating base 3 for heating. However, due to the influence of the material or processing technology of the kettle 2, the surface flatness of the kettle 2 is often difficult to control, resulting in poor flatness of the bottom wall 21 of the kettle 2. For example, the kettle 2 is made of glass. Due to the high viscosity and poor fluidity of glass, it is difficult to form it by injection molding or die casting like metal or plastic. Therefore, it is often blow-molded, resulting in poor processing precision and poor flatness of the bottom of the kettle 2. Moreover, after processing into a finished product, it is difficult to perform high-precision mechanical polishing (such as surface grinding) because it is costly and may damage the appearance. Therefore, the effective contact area between the bottom surface of this type of kettle 2 and the heating plate 32 of the heating base 3 is small, resulting in a small effective heating area and poor heating efficiency. However, in the prior art, in order to improve the flatness of the bottom wall 21 of the kettle 2, an inwardly protruding groove 22 is usually provided at the bottom (see Figure 2 This design uses the groove 22 as an "anchor point" during the blowing process, helping the molten glass to spread more evenly in all directions and reducing the wavy deformation caused by uneven stretching at the bottom. However, this design often requires sacrificing some of the bottom wall area 21, and the heating efficiency is difficult to guarantee.

[0054] Therefore, a heat-conducting bottom shell 12 is provided on the bottom wall of the kettle body 11 and is heat-conductingly connected to the kettle body 11, so that the heating base 4 heats the kettle 1 by heating the heat-conducting bottom shell 12. Furthermore, the flatness of the bottom surface of the heat-conducting base 120 that contacts the heating base 4 is less than the flatness of the bottom surface of the kettle body 11, that is, the flatness of the bottom surface of the heat-conducting base 120 is less than the flatness of the bottom surface of the kettle body 11. This helps to increase the contact area between the kettle body 11 and the heating base 4, thereby increasing the effective heating area of ​​the kettle body 11 and enhancing the heating efficiency of the liquid heating device.

[0055] In this embodiment of the invention, the flatness of the bottom surface of the kettle body is less than or equal to 0.5 mm and greater than or equal to 0.3 mm; the flatness of the bottom surface of the heat-conducting base 120 that contacts the heating base 4 is less than or equal to 0.1 mm and greater than or equal to 0 mm. Therefore, the flatness of the heat-conducting base 120 is much smaller than the flatness of the bottom surface of the heat-conducting base 120, thereby effectively increasing the effective heating area of ​​the kettle body. Furthermore, the flatness of the bottom surface of the heat-conducting base 120 is less than or equal to 0.1 mm and greater than or equal to 0 mm. If the flatness of the bottom surface of the heat-conducting base 120 is greater than 0.1 mm, then the flatness of the heat-conducting base 120 is too large, that is, the flatness of the heat-conducting base 120 is too poor, which is not conducive to improving the heating efficiency of the kettle body 11. The flatness of the bottom surface of the heat-conducting base 120 can be 0.01 mm, 0.03 mm, 0.05 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc. The flatness of the bottom surface of the pot body can be 0.3mm, 0.33mm, 0.35mm, 0.37mm, 0.4mm, 0.42mm, 0.45mm, 0.48mm, 0.5mm, etc.

[0056] To further ensure heating efficiency, the bottom wall 111 of the kettle body 11 can be polished before installing the heat-conducting base 120. This will improve the flatness of the bottom surface of the bottom wall 111 and reduce the thickness of the bottom wall 111, thereby improving heating efficiency. Since the heat-conducting base 120 covers the bottom wall 111 of the kettle body 11, there is no need to consider the issue of polishing damaging the appearance of the kettle body 11.

[0057] To ensure heating efficiency, in one embodiment, the heat-conducting base 12 is made of a heat-conducting metal. For example, the heat-conducting base 120 is made of stainless steel, which has excellent thermal conductivity, improving heating efficiency. Stainless steel can be integrally die-cast or stamped, effectively ensuring its flatness and reducing processing costs, thus helping to control the cost of the kettle 1. Furthermore, the presence of the heat-conducting base 12 further protects the bottom of the kettle body 11, reducing the possibility of the kettle body 11 breaking due to impacts or sudden cooling or heating. In other embodiments, the heat-conducting base 120 can also be made of aluminum or other materials.

[0058] Furthermore, to facilitate the thermally conductive connection between the heat-conducting base 120 and the bottom wall 111 of the kettle body 11, in one embodiment, thermally conductive adhesive 16 is filled between the heat-conducting base 120 and the bottom wall 111 of the kettle body 11. That is, the heat-conducting base 120 and the bottom wall 111 of the kettle body 11 are bonded and fixed by a thermally conductive adhesive, thereby facilitating the fixation of the heat-conducting base 120 to the bottom wall 111 of the kettle body 11 while ensuring the thermal conductivity between them. In other embodiments, the heat-conducting base 120 and the bottom wall 111 of the kettle body 11 can also be connected by a snap-fit ​​or other connecting structure. The thermally conductive adhesive 16 can be configured as a thermally conductive gel.

[0059] In one implementation, please refer to Figures 3 to 5 The support structure 13 is equipped with a support ring 131, which shields the joint between the heat-conducting bottom shell 12 and the bottom wall 111 of the kettle body 11 along the circumference of the heat-conducting bottom shell 12, thus helping to improve the overall appearance of the kettle 1. In another embodiment of the present invention, the support structure 13 is configured as a plurality of support feet spaced apart along the bottom wall 111 of the kettle body 11.

[0060] In one embodiment, the support structure 13 is made of a heat-insulating material to further prevent heat loss from the bottom of the kettle body 11, thereby ensuring heating efficiency. Optionally, the support structure 13 is made of plastic.

[0061] To facilitate the installation of the support structure 13, in one embodiment, please refer to... Figures 4 to 6 The kettle 1 also includes an annular bracket 14. A mounting groove 113 is provided around the bottom wall 111 of the kettle body 11. The annular bracket 14 is fixed to the mounting groove 113. The support structure 13 and the heat-conducting bottom shell 12 are both mounted on the annular bracket 14. Specifically, the mounting groove 113 is annular around the bottom wall 111 of the kettle body 11. The annular bracket 14 is fixed within the mounting groove 113 and is fixed to the top wall and / or side wall 112 of the mounting groove 113, thereby ensuring the stable installation of the annular bracket 14. The support structure 13 is mounted on the annular bracket 14, which not only facilitates the installation of the support structure 13 but also ensures its installation stability. Furthermore, the support structure 13 can be arranged around the outer periphery of the annular bracket 14, thereby further improving the overall structural integrity of the kettle body 11. In order to improve the installation stability of the heat-conducting bottom shell 12, in one embodiment, the heat-conducting bottom shell 12 can also be connected to the annular bracket 14, thereby helping to improve the overall structural integrity of the kettle 1.

[0062] In this embodiment of the invention, the inner side of the support structure 13 is provided with a mounting portion 132, and a fastener 17 passes through the mounting portion 132 and the heat-conducting bottom shell 12 to be securely connected to the annular bracket 14. Specifically, the support structure 13 is securely connected to the annular bracket 14 by the fastener 17, which facilitates the installation of the support structure 13 and ensures the installation stability of the support structure 13. In other embodiments, the support structure 13 can also be snapped onto the annular bracket 14.

[0063] Furthermore, the edge of the heat-conducting bottom shell 12 is provided with a clearance notch 121, and the mounting part 132 is inserted into the clearance notch 121. The kettle 1 also includes an annular buffer 15, and the fastener 17 presses the annular buffer 15 against the bottom side of the heat-conducting bottom shell 12. Specifically, the edge of the heat-conducting bottom shell 12 is provided with a clearance notch 121, and the mounting part 132 is inserted into the clearance notch 121, so that the heat-conducting bottom shell 12 and the mounting part 132 are at the same installation height, thereby helping to reduce the installation space at the bottom of the kettle body 11. Moreover, the annular buffer 15 is provided at the bottom of the heat-conducting bottom shell 12, and the fastener 17 presses the annular buffer 15 against the bottom side of the heat-conducting bottom shell 12, thereby connecting the annular buffer 15 and the mounting part 132, thereby improving the structural integrity of the kettle 1. In addition, the annular buffer 15 can also further seal the splicing gap between the support structure 13 and the heat-conducting contact, thereby reducing the entry of dust and other dirt and reducing hygiene dead corners. The annular buffer 15 can be made of materials such as silicone or rubber.

[0064] In the embodiments of this utility model, please refer to Figure 6 The annular bracket 14 includes an annular main body 141 and a connecting portion 142 disposed on the lower side of the annular main body 141. The annular main body 141 is bonded to the wall of the mounting groove 113, and the connecting portion 142 is used to install the support structure 13. Specifically, the annular main body 141 is used to install with the kettle body 11, and it is bonded to the side wall 112 of the mounting groove 113, thereby facilitating the installation of the annular bracket 14 and the kettle body 11, and eliminating the need for additional processing on the kettle body 11 to connect with the annular main body 141, thus facilitating the processing of the kettle body 11. The connecting portion 142 is used for the installation of the support structure 13. Therefore, to ensure connection stability, there are multiple connecting portions 142, and the multiple connecting portions 142 are spaced apart in the circumferential direction of the mounting groove 113. Optionally, the connecting portion 142 is integrally formed with the annular main body 141, thereby ensuring both the stability of the connection between the connecting portion 142 and the annular main body 141 and facilitating the assembly of the kettle 1. Of course, in other embodiments, the connecting part 142 can also be snapped, welded or bonded to the annular main body part 141.

[0065] To ensure the bonding stability of the annular main body 141, in one embodiment, a receiving groove 143 is provided on the side of the annular main body 141 facing the kettle body 11. Adhesive is filled into the receiving groove 143 and bonded to the wall of the mounting groove 113, thereby further increasing the amount of adhesive used and improving bonding stability. Optionally, the adhesive is configured as a heat-insulating adhesive, thereby further reducing the heat loss path at the bottom of the kettle body 11 and helping to ensure heating efficiency. Optionally, the adhesive is configured as silicone sealant.

[0066] Furthermore, since the bottom surface of the support structure 13 is lower than the bottom surface of the heat-conducting base shell 12, in order to facilitate the heating of the kettle 1 by the heating base 4, in one embodiment, the diameter of the heating base 4 is smaller than the inner diameter of the support structure 13. This allows the support structure 13 to cover the periphery of the heating base 4 when the kettle 1 is placed on the heating base 4, so that the heating plate 41 of the heating base 4 can extend into the inner side of the support structure 13 and abut against the heat-conducting base 120. This ensures both heating efficiency and limits the placement of the kettle 1 on the heating base 4.

[0067] In another embodiment, please refer to Figure 7 and Figure 8 The heating base 4 includes a heating plate 41 for heating the heat-conducting base 120. The outer periphery of the heating plate 41 is provided with a clearance groove 42 or a clearance step to avoid the support structure 13. The presence of the clearance groove 42 and clearance step provides clearance for the support structure 13, allowing part of the support structure 13 to extend into the clearance step or clearance groove 42. Simultaneously, the heating plate 41 can extend into the inner side of the support structure 13 and abut against the heat-conducting base 120, thus ensuring heating efficiency and limiting the placement of the kettle 1 on the heating base 4. Furthermore, the presence of the clearance step or clearance groove 42 can further insulate against heat, reducing the possibility of the heating plate 41 scalding the surrounding housing 44.

[0068] This utility model also proposes a kettle 1, which includes a kettle body 11 and a heat-conducting base 120. The kettle body 11 includes an integrally formed bottom wall 111 and a side wall 112. The heat-conducting base 120 is disposed at the bottom of the kettle body 11 and is heat-conductingly connected to the bottom wall 111 of the kettle body 11. Specifically, the bottom wall 111 and the side wall 112 of the kettle body 11 are integrally formed, that is, at least the bottom of the kettle body 11 is integrally formed. In this solution, at least the bottom of the kettle body 11 is made of glass or ceramic. If the side wall 112 of the kettle body 11 is integrally formed, that is, the entire kettle body 11 is integrally formed, that is, the entire kettle body 11 is made of glass or ceramic. If the side wall 112 of the kettle body 11 is separately formed (such as the spout or handle of the kettle body 11 being made of heat-insulating material), then the bottom of the kettle body 11 is made of glass or ceramic.

[0069] In the prior art, glass or ceramic kettles are prone to impacts during use, especially the bottom and corners of the kettle body 11. Due to the brittle and hard nature of glass and ceramic, expansion can easily cause the kettle body 11 to crack. Furthermore, if the kettle body 11 comes into direct contact with a cold object such as a table after heating, it is easy to crack due to sudden cooling, resulting in damage to the kettle 1 and affecting the service life of the liquid heating device. In addition, if there is hot water inside the kettle body 11, it is easy to scald the user, which is detrimental to the safety of using the kettle 1. Therefore, the bottom of the kettle body 11 is provided with a heat-conducting base 120. The heat-conducting base 120 is located on the outside of the kettle body 11, so that the heat-conducting base 120 can cover the outer perimeter of the bottom of the kettle body 11, thereby providing protection for the bottom of the kettle 1, reducing the chance of the kettle body 11 cracking due to impact, and preventing the kettle body 11 from directly contacting the table, thereby reducing the chance of the kettle body 11 cracking due to sudden cooling.

[0070] The heat-conducting base 120 is located at the bottom of the pot body 11. The heat-conducting base 120 can be located on the bottom wall of the pot body 11, or on the bottom wall 111 and part of the side wall 112 of the pot body 11.

[0071] Please see Figure 4 In this embodiment of the invention, the heat-conducting base 120 includes a heat-conducting bottom shell 12 disposed on the bottom wall of the kettle body 11, and a support structure 13 surrounding the outer periphery of the heat-conducting bottom shell 12, wherein the bottom surface of the support structure 13 is lower than the bottom surface of the heat-conducting bottom shell 12. Specifically, since the kettle 1 has a high temperature after being heated, when it is placed directly on the table, the heat-conducting bottom shell 12 will directly contact the table, which may easily burn the table. Therefore, the bottom surface of the support structure 13 is lower than the bottom surface of the heat-conducting bottom shell 12. That is, when the kettle body 11 is placed on the table, the support structure 13 supports the table, while there is a certain gap between the heat-conducting bottom shell 12 and the table, thereby avoiding the possibility of the heat-conducting bottom shell 12 directly contacting the table and burning the table. In addition, the support structure 13 surrounding the outer periphery of the heat-conducting structure helps to further protect the heat-conducting bottom shell 12 and the bottom wall 111 of the kettle body 11 in the circumferential direction, thereby improving the service life of the kettle 1. The heat-conducting bottom shell 12 and the supporting structure 13 can be integrally formed or separately formed.

[0072] Furthermore, the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12 is greater than or equal to 0.5mm and less than or equal to 2mm. When the liquid heating container is placed on the table, the support structure directly contacts the table, and the distance between them is 0. At this time, the distance L1 from the bottom surface of the heat-conducting base shell to the table is the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12, where 0.5mm≤L1≤2mm. This ensures that the heat-conducting base shell 12 is suspended relative to the table and facilitates the placement of the kettle 1 and the heating base 4. Specifically, the height difference between the bottom surface of the support structure 13 and the bottom surface of the heat-conducting base shell 12 can be 0.5mm, 0.7mm, 0.9mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, etc.

[0073] See Figure 1 and Figure 2 Existing liquid heating devices include a kettle 2 and a heating base 3. The kettle 2 is placed directly on the heating base 3 for heating. However, due to the influence of the material or processing technology of the kettle 2, the surface flatness of the kettle 2 is often difficult to control, resulting in poor flatness of the bottom wall 21 of the kettle 2. For example, the kettle 2 is made of glass. Due to the high viscosity and poor fluidity of glass, it is difficult to form it by injection molding or die casting like metal or plastic. Therefore, it is often blow-molded, resulting in poor processing precision and poor flatness of the bottom of the kettle 2. Moreover, after processing into a finished product, it is difficult to perform high-precision mechanical polishing (such as surface grinding) because it is costly and may damage the appearance. As a result, the effective contact area between the bottom surface of this type of kettle 2 and the heating plate 32 of the heating base 3 is small, corresponding to a small effective heating area and poor heating efficiency. However, in the prior art, in order to improve the flatness of the bottom wall 21 of the kettle 2, an inwardly protruding groove 22 is usually provided at the bottom (see Figure 2 This design uses the groove 22 as an "anchor point" during the blowing process, helping the molten glass to spread more evenly in all directions and reducing the wavy deformation caused by uneven stretching at the bottom. However, this design often requires sacrificing some of the bottom wall area 21, and the heating efficiency is difficult to guarantee.

[0074] Therefore, a heat-conducting bottom shell 12 is provided on the bottom wall of the kettle body 11 and is heat-conductingly connected to the kettle body 11, so that the heating base 4 heats the kettle 1 by heating the heat-conducting bottom shell 12. Furthermore, the flatness of the bottom surface of the heat-conducting base 120 that contacts the heating base 4 is less than the flatness of the bottom surface of the kettle body 11, that is, the flatness of the bottom surface of the heat-conducting base 120 is less than the flatness of the bottom surface of the kettle body 11. This helps to increase the contact area between the kettle body 11 and the heating base 4, thereby increasing the effective heating area of ​​the kettle body 11 and enhancing the heating efficiency of the liquid heating device.

[0075] In this embodiment of the invention, the flatness of the bottom surface of the kettle body is less than or equal to 0.5 mm and greater than or equal to 0.3 mm; the flatness of the bottom surface of the heat-conducting base 120 that contacts the heating base 4 is less than or equal to 0.1 mm and greater than or equal to 0 mm. Therefore, the flatness of the heat-conducting base 120 is much smaller than the flatness of the bottom surface of the heat-conducting base 120, thereby effectively increasing the effective heating area of ​​the kettle body. Furthermore, the flatness of the bottom surface of the heat-conducting base 120 is less than or equal to 0.1 mm and greater than or equal to 0 mm. If the flatness of the bottom surface of the heat-conducting base 120 is greater than 0.1 mm, then the flatness of the heat-conducting base 120 is too large, that is, the flatness of the heat-conducting base 120 is too poor, which is not conducive to improving the heating efficiency of the kettle body 11. The flatness of the bottom surface of the heat-conducting base 120 can be 0.01 mm, 0.03 mm, 0.05 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc. The flatness of the bottom surface of the pot body can be 0.3mm, 0.33mm, 0.35mm, 0.37mm, 0.4mm, 0.42mm, 0.45mm, 0.48mm, 0.5mm, etc.

[0076] To further ensure heating efficiency, the bottom wall 111 of the kettle body 11 can be polished before installing the heat-conducting base 120. This will improve the flatness of the bottom surface of the bottom wall 111 and reduce the thickness of the bottom wall 111, thereby improving heating efficiency. Since the heat-conducting base 120 covers the bottom wall 111 of the kettle body 11, there is no need to consider the issue of polishing damaging the appearance of the kettle body 11.

[0077] To ensure heating efficiency, in one embodiment, the heat-conducting base 12 is made of a heat-conducting metal. For example, the heat-conducting base 120 is made of stainless steel, which has excellent thermal conductivity, improving heating efficiency. Stainless steel can be integrally die-cast or stamped, effectively ensuring its flatness and reducing processing costs, thus helping to control the cost of the kettle 1. Furthermore, the presence of the heat-conducting base 12 further protects the bottom of the kettle body 11, reducing the possibility of the kettle body 11 breaking due to impacts or sudden cooling or heating. In other embodiments, the heat-conducting base 120 can also be made of aluminum or other materials.

[0078] Furthermore, to facilitate the thermally conductive connection between the heat-conducting base 120 and the bottom wall 111 of the kettle body 11, in one embodiment, thermally conductive adhesive 16 is filled between the heat-conducting base 120 and the bottom wall 111 of the kettle body 11. That is, the heat-conducting base 120 and the bottom wall 111 of the kettle body 11 are bonded and fixed by a thermally conductive adhesive, thereby facilitating the fixation of the heat-conducting base 120 to the bottom wall 111 of the kettle body 11 while ensuring the thermal conductivity between them. In other embodiments, the heat-conducting base 120 and the bottom wall 111 of the kettle body 11 can also be connected by a snap-fit ​​or other connecting structure. The thermally conductive adhesive 16 can be configured as a thermally conductive gel.

[0079] In one implementation, please refer to Figures 3 to 5 The support structure 13 is equipped with a support ring 131, which shields the joint between the heat-conducting bottom shell 12 and the bottom wall 111 of the kettle body 11 along the circumference of the heat-conducting bottom shell 12, thus helping to improve the overall appearance of the kettle 1. In another embodiment of the present invention, the support structure 13 is configured as a plurality of support feet spaced apart along the bottom wall 111 of the kettle body 11.

[0080] In one embodiment, the support structure 13 is made of a heat-insulating material to further prevent heat loss from the bottom of the kettle body 11, thereby ensuring heating efficiency. Optionally, the support structure 13 is made of plastic.

[0081] To facilitate the installation of the support structure 13, in one embodiment, please refer to... Figures 4 to 6 The kettle 1 also includes an annular bracket 14. A mounting groove 113 is provided around the bottom wall 111 of the kettle body 11. The annular bracket 14 is fixed to the mounting groove 113. The support structure 13 and the heat-conducting bottom shell 12 are both mounted on the annular bracket 14. Specifically, the mounting groove 113 is annular around the bottom wall 111 of the kettle body 11. The annular bracket 14 is fixed within the mounting groove 113 and is fixed to the top wall and / or side wall 112 of the mounting groove 113, thereby ensuring the stable installation of the annular bracket 14. The support structure 13 is mounted on the annular bracket 14, which not only facilitates the installation of the support structure 13 but also ensures its installation stability. Furthermore, the support structure 13 can be arranged around the outer periphery of the annular bracket 14, thereby further improving the overall structural integrity of the kettle body 11. In order to improve the installation stability of the heat-conducting bottom shell 12, in one embodiment, the heat-conducting bottom shell 12 can also be connected to the annular bracket 14, thereby helping to improve the overall structural integrity of the kettle 1.

[0082] In this embodiment of the invention, the inner side of the support structure 13 is provided with a mounting portion 132, and a fastener 17 passes through the mounting portion 132 and the heat-conducting bottom shell 12 to be securely connected to the annular bracket 14. Specifically, the support structure 13 is securely connected to the annular bracket 14 by the fastener 17, which facilitates the installation of the support structure 13 and ensures the installation stability of the support structure 13. In other embodiments, the support structure 13 can also be snapped onto the annular bracket 14.

[0083] Furthermore, the edge of the heat-conducting bottom shell 12 is provided with a clearance notch 121, and the mounting part 132 is inserted into the clearance notch 121. The kettle 1 also includes an annular buffer 15, and the fastener 17 presses the annular buffer 15 against the bottom side of the heat-conducting bottom shell 12. Specifically, the edge of the heat-conducting bottom shell 12 is provided with a clearance notch 121, and the mounting part 132 is inserted into the clearance notch 121, so that the heat-conducting bottom shell 12 and the mounting part 132 are at the same installation height, thereby helping to reduce the installation space at the bottom of the kettle body 11. Moreover, the annular buffer 15 is provided at the bottom of the heat-conducting bottom shell 12, and the fastener 17 presses the annular buffer 15 against the bottom side of the heat-conducting bottom shell 12, thereby connecting the annular buffer 15 and the mounting part 132, thereby improving the structural integrity of the kettle 1. In addition, the annular buffer 15 can also further seal the splicing gap between the support structure 13 and the heat-conducting contact, thereby reducing the entry of dust and other dirt and reducing hygiene dead corners. The annular buffer 15 can be made of materials such as silicone or rubber.

[0084] In the embodiments of this utility model, please refer to Figure 6 The annular bracket 14 includes an annular main body 141 and a connecting portion 142 disposed on the lower side of the annular main body 141. The annular main body 141 is bonded to the wall of the mounting groove 113, and the connecting portion 142 is used to install the support structure 13. Specifically, the annular main body 141 is used to install with the kettle body 11, and it is bonded to the side wall 112 of the mounting groove 113, thereby facilitating the installation of the annular bracket 14 and the kettle body 11, and eliminating the need for additional processing on the kettle body 11 to connect with the annular main body 141, thus facilitating the processing of the kettle body 11. The connecting portion 142 is used for the installation of the support structure 13. Therefore, to ensure connection stability, there are multiple connecting portions 142, and the multiple connecting portions 142 are spaced apart in the circumferential direction of the mounting groove 113. Optionally, the connecting portion 142 is integrally formed with the annular main body 141, thereby ensuring both the stability of the connection between the connecting portion 142 and the annular main body 141 and facilitating the assembly of the kettle 1. Of course, in other embodiments, the connecting part 142 can also be snapped, welded or bonded to the annular main body part 141.

[0085] To ensure the bonding stability of the annular main body 141, in one embodiment, a receiving groove 143 is provided on the side of the annular main body 141 facing the kettle body 11. Adhesive is filled into the receiving groove 143 and bonded to the wall of the mounting groove 113, thereby further increasing the amount of adhesive used and improving bonding stability. Optionally, the adhesive is configured as a heat-insulating adhesive, thereby further reducing the heat loss path at the bottom of the kettle body 11 and helping to ensure heating efficiency. Optionally, the adhesive is configured as silicone sealant.

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

Claims

1. A liquid heating device, characterized in that, include: Heated base; A kettle, wherein the kettle and the heating base are separately disposed, the kettle includes a kettle body and a heat-conducting base, the kettle body includes an integrally formed bottom wall and side wall, the heat-conducting base is disposed at the bottom of the kettle body and is heat-conductingly connected to the bottom wall of the kettle body, and the heating base heats the kettle by heating the heat-conducting base; The heat-conducting base includes a heat-conducting bottom shell disposed on the bottom wall of the kettle body, and a support structure surrounding the outer periphery of the heat-conducting bottom shell, wherein the bottom surface of the support structure is lower than the bottom surface of the heat-conducting bottom shell.

2. The liquid heating device as described in claim 1, characterized in that, The height difference between the bottom surface of the support structure and the bottom surface of the heat-conducting base shell is greater than or equal to 0.5 mm and less than or equal to 2 mm.

3. The liquid heating device as described in claim 1, characterized in that, The support structure is configured with a support ring; or, the support structure is configured as a plurality of support feet spaced apart along the bottom wall of the pot body.

4. The liquid heating device as described in claim 1, characterized in that, The heat-conducting base also includes an annular bracket. The bottom wall of the kettle body is provided with an installation groove. The annular bracket is fixed to the installation groove. The support structure and the heat-conducting bottom shell are both installed on the annular bracket.

5. The liquid heating device as described in claim 4, characterized in that, The annular bracket includes an annular main body and a connecting part disposed on the lower side of the annular main body. The annular main body is bonded to the groove wall of the mounting groove, and the connecting part is used at least for mounting the support structure.

6. The liquid heating device as described in claim 5, characterized in that, The annular main body has a receiving groove on the side facing the pot body. Adhesive is filled into the receiving groove and bonded to the groove wall of the mounting groove.

7. The liquid heating device as described in claim 1, characterized in that, The supporting structure is made of heat-insulating material.

8. The liquid heating device as described in claim 1, characterized in that, Thermally conductive adhesive is filled between the heat-conducting bottom shell and the bottom wall of the pot body.

9. The liquid heating device as described in claim 1, characterized in that, The diameter of the heating base is smaller than the inner diameter of the support structure; and / or, the heating base includes a heating plate for heating the heat-conducting base, and the outer periphery of the heating plate is provided with a clearance groove or clearance step to avoid the support structure.

10. The liquid heating device as claimed in claim 1, characterized in that, At least the bottom of the kettle body is made of glass or ceramic; or the heat-conducting base is made of heat-conducting metal.

11. The liquid heating apparatus according to any one of claims 1 to 10, characterized in that, The flatness of the bottom surface of the heat-conducting base that contacts the heating base is less than the flatness of the bottom surface of the kettle body.

12. The liquid heating device as claimed in claim 11, characterized in that, The flatness of the bottom surface of the pot body is less than or equal to 0.5 mm and greater than or equal to 0.3 mm. The flatness of the bottom surface of the heat-conducting base that contacts the heating base is less than or equal to 0.1 mm and less than or equal to 0 mm.

13. A kettle, characterized in that, The device includes a kettle body and a heat-conducting base. The kettle body includes an integrally formed bottom wall and side walls. The heat-conducting base is located at the bottom of the kettle body and is heat-conductingly connected to the bottom wall of the kettle body.

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