Anti-scalding heating base and cooking pot

Abstract

The utility model discloses an anti-scald heating base and a cooking pot, the anti-scald heating base comprises an inner pot, an outer shell surrounding the inner pot and a heating element arranged on the side face, facing the outer shell, of the inner pot, a supporting table is formed at the top of the outer shell, and a lap joint part is formed at the top of the inner pot; the supporting table is sleeved with a heat insulation ring with the heat conductivity coefficient smaller than that of the shell, and the lap joint part is lapped on the heat insulation ring so that the inner pot can be fixed in the inner side direction of the shell, and heat of the inner pot transferred to the shell can be reduced. Therefore, the heat insulation ring is arranged between the inner pot and the top of the outer shell, and the supporting table and the lap joint part are respectively connected with the heat insulation ring, so that the inner pot can be smoothly assembled on the outer shell, and direct heat transfer at the joint of the inner pot and the outer shell is reduced; therefore, the heat loss of the heating element on the inner pot is reduced, the heating efficiency of the heating element on the liner is improved, and meanwhile, scalding accidents caused by overhigh local temperature rise of the shell can be avoided.

Description

Technical Field

[0001] The utility model relates to household appliances, in particular to an anti-scalding heating seat and a cooking pot. Background Art

[0002] An electric stew pot is an electric cooker that usually consumes less power than other electric cookers such as rice cookers, usually below 300 W. Electric stew pots use a slow fire method to cook porridge and soup, and are widely used in households.

[0003] Currently, if Figure 1-2 As shown, the structure of the existing electric stew pot generally consists of an inner pot and a heating seat, wherein the heating seat is composed of an outer shell 22 and an inner pot 21. The outer shell 22 and the inner pot 21 are assembled by sleeved the pot edge of the inner pot 21 on the metal outer shell 22. The inner pot 21 can be heated by the heating element, and then the food in the inner pot is heated by heat conduction. Because the inner pot 21 is directly sleeved on the pot body of the metal outer shell 22, when the heating element heats the inner pot 21, the heat of the inner pot 21 can also be conducted to the metal outer shell 22, which easily causes the local temperature of the outer shell 22 to rise too high, so that the outer shell 22 will form a local high temperature, and then the user may be scalded when touching the outer shell 22.

[0004] It can be seen that reducing the heat loss of the heating element on the inner pot and avoiding scalding accidents caused by excessive local temperature rise of the outer shell is a problem that needs to be solved. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an anti-scalding heating seat and a cooking pot, which reduces the heat loss of the heating element on the inner pot to improve the heating efficiency of the heating element on the inner pot, and also avoids the local temperature rise of the outer shell causing scalding accidents.

[0006] The utility model is implemented by the following technical scheme: an anti-scalding heating seat, comprising an inner pot, an outer shell surrounding the inner pot, and a heating element arranged on the inner pot, a support platform is formed on the top of the outer shell, and an overlapping portion is formed on the top of the inner pot; an insulation ring with a thermal conductivity coefficient smaller than that of the outer shell is sleeved on the support platform, and the overlapping portion is overlapped on the insulation ring to fix the inner pot on the inner side of the outer shell and reduce the heat transfer of the inner pot to the outer shell.

[0007] Therefore, the utility model sets a heat insulation ring between the inner pot and the top of the outer shell, and connects the support platform and the overlap part to the heat insulation ring respectively, so that the inner pot can be smoothly assembled on the outer shell, reducing the direct heat transfer at the connection between the inner pot and the outer shell, thereby reducing the heat loss of the heating element on the inner pot to improve the heating efficiency of the heating element to the inner pot, and also avoiding the local temperature rise of the outer shell too high to cause scalding accidents.

[0008] In one embodiment, a first annular groove is provided on the heat insulating ring, an end of the overlapping portion is clamped in the first annular groove, and a first notch portion for reducing the mutual contact area is provided between the overlapping portion and the first annular groove.

[0009] In one embodiment, the contact area between the overlapping portion and the first annular groove is α, 20%≤α≤80%.

[0010] In one embodiment, at least two first notch portions are provided.

[0011] In one embodiment, an annular groove is disposed on the outer side of the heat insulation ring, the support platform is sleeved on the annular groove, and a second notch portion for reducing the mutual contact area is disposed between the support platform and the annular groove.

[0012] In one embodiment, the contact area between the support platform and the annular groove is β, 20%≤β≤80%.

[0013] In one embodiment, at least two second notch portions are provided.

[0014] In one embodiment, a heat insulation plate is further provided between the inner pot and the outer shell, a second annular groove is provided on the heat insulation ring, and the heat insulation plate is clamped in the second annular groove.

[0015] The utility model also provides a cooking pot, comprising an inner pot for placing food and the above-mentioned anti-scalding heating seat, wherein a step portion is arranged on the outer side of the inner pot, and the top end surface of the heat insulation ring is higher than the top end surface of the overlap portion;

[0016] When the inner pot is placed on the inner pot, a heating cavity is enclosed between the outer side surface of the inner pot and the inner side surface of the inner pot, and the step portion is placed on the top end surface of the heat insulation ring to seal the heating cavity.

[0017] In one embodiment, the heat-insulating ring includes an outer ring and an inner ring overlapped by overlapping portions, and a top end surface of the outer ring is higher than a top end surface of the inner ring.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a heat-insulating ring between the inner pot and the top of the outer pot, and connects the support platform and the overlap portion to the heat-insulating ring respectively, so that the inner pot can be smoothly assembled on the outer pot, reducing direct heat transfer at the connection between the inner pot and the outer pot, thereby reducing heat loss of the heating element on the inner pot to improve the heating efficiency of the heating element to the inner pot, and also avoiding scalding accidents caused by excessive local temperature rise of the outer pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of an electric stew pot in the prior art;

[0020] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the electric stew pot of the utility model;

[0022] Figure 4 It is a plan view of the internal structure of the electric stew pot of the utility model;

[0023] Figure 5 yes Figure 4 A partial enlarged view of B in the middle;

[0024] Figure 6 It is a three-dimensional schematic diagram of the internal structure of the electric stew pot of the utility model;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the heat-insulating ring in the electric stew pot of the utility model from a first angle;

[0026] Figure 8 This is a second angle schematic diagram of the three-dimensional structure of the heat insulation ring in the electric stew pot of the utility model;

[0027] Fig. 9 The utility model is a schematic diagram of the internal structure of the heat insulation ring of the electric stew pot after being cut away.

[0028] The numbers in the figure represent the following meanings: 1. heating seat; 5. inner pot; 21. inner pot; 22. outer shell; 3. insulation ring; 31. first annular groove; 311. first notch; 32. annular groove; 321. second notch; 4. insulation board; 33. second annular groove; 6. heating element. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present application to achieve the predetermined purpose, the specific implementation methods, structures, features and effects of the present application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0030] like Figure 3-9As shown, a scald-proof heating seat includes an inner pot 21, an outer shell 22 and a heating element 6. The inner pot 21 is used to heat the inner pot 5. In this embodiment, the inner pot 5 is a ceramic pot. The heating element 6 is arranged on the inner pot 21. There are many ways to arrange the heating element 6 on the inner pot 21, for example, it can be arranged on the side or bottom of the inner pot 21. In this embodiment, the outer shell 22 is located on the side of the inner pot 21 facing the outer shell 22. In addition, the outer shell 22 surrounds the inner pot 21, effectively protecting the inner pot 21 to prevent the inner pot 21 from directly leaking out when in use.

[0031] It should be noted that the heating element 6 is disposed between the inner pot 21 and the outer shell 22 in order to hide the heating element 6 and avoid exposure of the heating element 6, thereby avoiding overflow and water leakage during cooking, resulting in short circuit, leakage and other faults, and improving reliability and safety in use.

[0032] Among them, a support platform is formed on the top of the outer shell 22, and an overlapping portion is formed on the top of the inner pot 21; further, an insulation ring 3 is sleeved on the support platform, and the thermal conductivity of the insulation ring 3 is smaller than the thermal conductivity of the outer shell 22. The overlapping portion is overlapped on the insulation ring 3, so that the inner pot 21 is fixed on the inner side of the outer shell 22 through the insulation ring 3, and the heat of the inner pot 21 is reduced and transferred to the outer shell 22 through the insulation ring 3.

[0033] It can be seen that the utility model sets a heat-insulating ring 3 between the inner pot 21 and the top of the outer shell 22, and connects the support platform and the overlap portion to the heat-insulating ring 3 respectively, so that the inner pot 21 can be smoothly assembled on the outer shell 22, thereby reducing the direct heat transfer at the connection between the inner pot 21 and the outer shell 22, thereby reducing the heat loss of the heating element 6 on the inner pot 21 to improve the heating efficiency of the heating element 6 to the inner pot 5, and at the same time, it can also avoid excessive local temperature rise of the outer shell 22 to cause scalding accidents.

[0034] The heat-insulating ring 3 is made of rubber or plastic, both of which have the advantage of low thermal conductivity. In this embodiment, the heat-insulating ring 3 is made of plastic, which has the advantages of high temperature resistance, high strength, good support, and low price.

[0035] Among them, combined Figure 7-9As shown, a first annular groove 31 is provided on the insulation ring 3, and the end of the overlapping portion is clamped in the first annular groove 31. Furthermore, a first notch portion 311 is provided between the overlapping portion and the first annular groove 31. The first notch portion 311 is used to reduce the contact area between the overlapping portion and the first annular groove 31, that is, the first notch portion 311 is used to reduce the contact area between the inner pot 21 and the insulation ring 3, thereby reducing the heat transfer between the inner pot 21 and the insulation ring 3. Specifically, in this embodiment, a first annular groove 31 is provided on the top of the insulation ring 3, and the overlapping portion is configured as a barbed hook structure, and the end of the overlapping portion is clamped in the first annular groove 31, so that the inner pot 21 is hooked on the insulation ring 3. At the same time, as Figure 8-9 As shown, a first notch portion 311 is provided at the bottom of the first annular groove 31, and the overall structure of the first notch portion 311 is in the shape of a groove. In this way, the insulation ring 3 can reduce the contact area with the overlapping portion through the groove-shaped first notch portion 311, thereby further helping to reduce the heat conducted to the outer shell 22 when the inner pot 21 is heated.

[0036] The contact area between the overlapped portion and the first annular groove 31 is α, 20%≤α≤80%. Furthermore, 40%≤α≤60%. The inventors have found through testing that if the contact area value α is too large or too small, there will be problems in use. For example, if the contact area value α is too large, the heat insulation effect is not obvious, and if the contact area value α is too small, it is easy to cause excessive contact pressure when the pressure remains unchanged, which will cause problems such as contact imprinting or deformation between the heat insulation ring 3 and the inner pot 21.

[0037] Among them, at least two first notch portions 311 are provided. That is, the first notch portions 311 can be provided in two, three or more numbers, which are not limited here. In this embodiment, the first notch portions 311 are provided in twenty numbers, and the twenty first notch portions 311 are evenly distributed along the circumference of the first annular groove 31, so that the contact mode between the end of the inner pot 21 and the bottom of the first annular groove 31 is not continuous contact, but staggered disconnection contact (pulse waveform contact), so as to form a good uniform heat insulation effect.

[0038] Among them, Figure 3-7As shown, an annular groove 32 is provided on the outer side of the heat-insulating ring 3, the support platform is sleeved on the annular groove 32, and a second notch portion 321 is provided between the support platform and the annular groove 32, and the second notch portion 321 is used to reduce the contact area between the heat-insulating ring 3 and the outer shell 22, thereby reducing the heat transfer between the heat-insulating ring 3 and the outer shell 22. Specifically, in this embodiment, an annular groove 32 is provided on the outer surface of the heat-insulating ring 3 along its circumference, and the support platform is sleeved on the annular groove 32. At the same time, a second notch portion 321 is provided on the top wall of the annular groove 32, and the overall structure of the second notch portion 321 is in the shape of a groove. In this way, the heat-insulating ring 3 can reduce the contact area with the top surface of the support platform 22 through the groove-shaped second notch portion 321, thereby further helping to reduce the heat conducted to the outer shell 22 when the inner pot 21 is heated.

[0039] Among them, the contact area between the support platform and the annular groove 32 is β, 20%≤β≤80%, and further, 40%≤α≤60%. The inventors found through tests that if the contact area value β is too large or too small, there will be usage problems. For example, if the contact area value β is too large, the thermal insulation effect is not obvious, and if the contact area value β is too small, it is easy to cause excessive contact pressure when the pressure remains unchanged, which will cause contact imprinting or deformation between the insulation ring 3 and the outer shell 22.

[0040] Among them, at least two second notch portions 321 are provided, that is, the second notch portions 321 can be provided as two, three or more, which is not limited here. In this embodiment, the second notch portions 321 are provided as twenty, and the twenty second notch portions 321 are evenly distributed along the circumference of the annular groove 32, so that the contact mode between the top of the shell 22 and the top wall of the shell 22 is not continuous contact, but staggered disconnection contact (pulse waveform contact), so as to form a good uniform heat insulation effect.

[0041] Among them, a heat insulation board 4 is also arranged between the inner pot 21 and the outer shell 22, so that the heat of the heating element 6 is prevented from being radiated directly toward the outer shell 22 through the heat insulation board 4, so as to prevent the control panel on the outer shell 22 from being too high in temperature, and at the same time prevent the outer shell 22 from being too high in temperature. Further, a second annular groove 33 is arranged on the heat insulation ring 3, and the heat insulation board 4 is clamped in the second annular groove 33, that is, the heat insulation board 4 is connected to the inner pot 21 and the outer shell 22 through the heat insulation ring 3, so that the heat absorbed by the heat insulation board 4 will not be directly conducted to the outer shell 22, because it is helpful to reduce the heat conducted to the outer shell 22 when the inner pot 21 is heated.

[0042] The utility model also has a cooking pot, comprising an inner pot 5 for placing food and the above-mentioned anti-scalding heating seat 1, the outer side of the inner pot 5 is provided with a step portion, and the top surface of the heat-insulating ring 3 is higher than the top surface of the overlapping portion; thus, on the basis of the above-mentioned structure, when the inner pot 5 is placed on the inner pot 21, a heating cavity is enclosed between the outer side surface of the inner pot 5 and the inner side surface of the inner pot 21, and the step portion is laid on the top surface of the heat-insulating ring 3 to seal the heating cavity. It can be seen that in the cooking pot, the step portion in the inner pot 5 is pressed on the heat-insulating ring 3, so that the outer side surface of the inner pot 5, the inner side surface of the inner pot 21 and the heat-insulating ring 3 are enclosed to form a heating cavity with good sealing performance, so that when the heat generated by the heating element 6 is radiated and heated to the inner pot 5 through the heating cavity, the heat loss is relatively small, and the heating efficiency is higher.

[0043] Among them, Fig. 9 As shown, the insulation ring 3 includes an outer ring and an inner ring, the outer ring is fixedly connected to the inner ring, the inner ring is overlapped by the overlapping portion, the top end surface of the outer ring is higher than the top end surface of the inner ring, so that the top end surface of the insulation ring 3 is higher than the top end surface of the overlapping portion, thereby ensuring that the step portion in the inner liner 5 can be pressed on the insulation ring 3.

[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A scald-proof heating seat, comprising an inner pot, an outer shell surrounding the inner pot, and a heating element arranged on the inner pot, characterized in that: A support platform is formed on the top of the outer shell, and a lap joint is formed on the top of the inner pot; An insulation ring with a thermal conductivity smaller than that of the outer shell is sleeved on the support platform, and the overlapping portion is overlapped on the insulation ring to fix the inner pot on the inner side of the outer shell and reduce the heat transfer of the inner pot to the outer shell.

2. The anti-scalding heating seat according to claim 1, characterized in that: The heat-insulating ring is provided with a first annular groove, the end of the overlapping portion is clamped in the first annular groove, and a first notch portion for reducing the mutual contact area is provided between the overlapping portion and the first annular groove.

3. The anti-scalding heating seat according to claim 2, characterized in that: The contact area between the overlapping portion and the first annular groove is α, 20%≤α≤80%.

4. The anti-scalding heating seat according to claim 2, characterized in that: At least two first notches are provided.

5. The anti-scalding heating seat according to claim 1, characterized in that: An annular groove is arranged on the outer side of the heat insulation ring, the support platform is sleeved on the annular groove, and a second notch portion for reducing the mutual contact area is arranged between the support platform and the annular groove.

6. The anti-scalding heating seat according to claim 5, characterized in that: The contact area between the support platform and the annular groove is β, 20%≤β≤80%.

7. The anti-scalding heating seat according to claim 5, characterized in that: At least two second notches are provided.

8. The anti-scalding heating seat according to claim 1, characterized in that: A heat insulation plate is also arranged between the inner pot and the outer shell, a second annular groove is arranged on the heat insulation ring, and the heat insulation plate is clamped in the second annular groove.

9. A cooking pot, characterized in that: It comprises an inner pot for placing food and an anti-scalding heating seat as claimed in any one of claims 1 to 8, wherein a step portion is arranged on the outer side of the inner pot, and the top surface of the heat insulation ring is higher than the top surface of the overlap portion; When the inner pot is placed on the inner pot, a heating cavity is enclosed between the outer side surface of the inner pot and the inner side surface of the inner pot, and the step portion is placed on the top end surface of the insulation ring to seal the heating cavity.

10. The cooking pot according to claim 9, characterized in that: The heat-insulating ring comprises an outer ring and an inner ring overlapped by the overlapping portion, and the top end surface of the outer ring is higher than the top end surface of the inner ring.

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