Electric hot tray mounting structure and cooker

Abstract

According to the electric hot tray installation structure, a heated container and an electric hot tray are installed in a nested mode, and objects in the heated container do not make contact with the electric hot tray. And the nesting part is filled with sealant, and the electric hot tray is fixed on a heated container through the sealant and atmospheric pressure. The nested installation is as follows: a circle of raised fixed wall is arranged on the heated container, the electric heating tray is placed in the fixed wall, and sealant is filled between the electric heating tray and the fixed wall; or, a circle of protruding fixing wall is arranged on the electric heating disc, the heated container is placed in the fixing wall, and sealant is filled between the heated container and the fixing wall. The nesting part extends as far as possible to be away from the heating area, and the heating area of the heated container is increased. An interlayer filled with high-temperature-resistant liquid serving as a heat-conducting medium is arranged between the heated container and the electric hot tray, and the high-temperature-resistant liquid is tin, fused salt, vegetable oil and other materials. The cooker comprises the electric hot tray mounting structure. The cooker comprises the electric hot tray mounting structure, and the electric hot tray does not comprise an electric heating tube.

Description

Technical Field

[0001] This invention relates to the field of electric cooking appliances, and more particularly to cooking appliances made entirely of glass or ceramic. Background Technology

[0002] Currently, most household cookware is made of stainless steel, which can easily lead to the leaching of heavy metals during prolonged high-temperature heating, posing a health risk. Therefore, cookware made entirely of glass or ceramic has emerged and become popular. However, these cookwares often suffer from lower power output due to issues such as the heating element at the bottom overheating.

[0003] Patent application 202320138915.3 discloses a heating plate assembly structure for an all-glass electric kettle, which fixes the bottom heating plate by grooves and fastening straps on the side wall of the kettle body; this solution also has the above-mentioned problems, and also has problems such as a more complex installation structure and a higher bottom. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an electric heating plate mounting structure and a cooking appliance.

[0005] An electric heating plate mounting structure is disclosed, in which the heated container is an integral piece of all-glass or all-ceramic material. The heated container and the electric heating plate are nested together, with the contents of the heated container not in contact with the electric heating plate. Sealant is filled at the nesting area, and the electric heating plate is fixed to the heated container by the sealant and atmospheric pressure. In one nesting installation, the heated container has a raised fixing wall, and the electric heating plate is placed inside the fixing wall, with sealant filling the space between the electric heating plate and the fixing wall; alternatively, the electric heating plate has a raised fixing wall, and the heated container is placed inside the fixing wall, with sealant filling the space between the heated container and the fixing wall. The nesting area is extended as far away from the heat-generating area as possible to increase the heated surface area of ​​the heated container, reduce the temperature at the edge of the electric heating plate, and improve the stability of the sealant. A sandwich layer filled with a high-temperature resistant liquid as a heat-conducting medium exists between the heated container and the electric heating plate. The high-temperature resistant liquid can be materials such as tin, molten salt, or vegetable oil. When the temperature at the edge of the electric heating plate is below the melting point of tin, tin can be used as the sealant. Support columns are provided within the sandwich layer to prevent collapse and failure. Alternatively, thermally conductive powders such as graphite powder or metal powder can be filled between the heated container and the heating plate. A heat insulation plate is then installed on the heating plate, and components such as electrical connectors are mounted on the heat insulation plate.

[0006] The beneficial effects of this invention are:

[0007] An electric heating plate mounting structure is disclosed, in which the heated container is an integrated all-glass or all-ceramic unit. The heated container and the electric heating plate are nested together, preventing the contents of the heated container from contacting the heating plate. The all-glass or all-ceramic design avoids heavy metal contamination during cooking. Sealant is filled at the nesting area, and the heating plate is fixed to the heated container by the sealant and atmospheric pressure. This mounting structure requires no additional fasteners, is simple to implement, and has low production costs. The elastic sealant buffers the thermal expansion difference between the heated container and the heating plate, preventing the heating plate from bursting or detaching. The nested installation is similar to a piston; separation requires overcoming atmospheric pressure. The heating plate is secured not only by the adhesive force of the sealant but also by atmospheric pressure, resulting in a tight and reliable connection. Nested installation involves a raised, fixed wall around the heated container, with the heating plate placed inside the wall and sealant filling the space between them; alternatively, the heating plate has a raised, fixed wall around it, with the heated container placed inside and sealant filling the space between them. Extending the nested portion as far away from the heating area as possible increases the heated surface area of ​​the container, improving heating efficiency and power; it also reduces the temperature at the edge of the heating plate, improving the stability of the sealant; and it increases the sealant area, enhancing sealing reliability and adhesion strength. A high-temperature resistant liquid acts as a heat-conducting medium between the heated container and the heating plate. The liquid's flow characteristics fill the contact gap, reducing contact thermal resistance and increasing power. High-temperature resistant liquids include materials such as tin, molten salt, and vegetable oil; these materials have melting and boiling points suitable for commonly used cooking temperatures and are low-cost, healthy, and environmentally friendly. Support pillars within the interlayer prevent collapse and failure, and also avoid excessive internal liquid pressure. Alternatively, thermally conductive powders such as graphite powder or metal powder can be filled between the heated container and the heating plate; these powders offer more stable performance. A heat insulation plate is installed on the heating plate, and components such as temperature protection switches and electrical connectors are mounted on it; a temperature difference exists between the heat insulation plate and the heating plate, allowing the electrical connectors and other components to operate at a lower temperature.

[0008] A cooking appliance comprising the aforementioned electric heating plate mounting structure.

[0009] The beneficial effects of this invention are: This cooker has the same advantages as the electric heating plate installation structure described above, so they will not be repeated here.

[0010] A cooking appliance in which the heated container can be separated from the heating plate, for example, the inner pot of a rice cooker can be separated from the heating plate. The heated container includes the heating plate mounting structure described above, and the heating plate is simplified to a metal plate without heating elements or other components.

[0011] The beneficial effects of this invention are: This cooker has the same advantages as the aforementioned electric heating plate mounting structure; in addition, the metal plate nested on the heated container also has the function of protecting the heated container, making it less likely to be broken by impact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the glass pot according to the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the ceramic teapot according to the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of the glass inner pot of the rice cooker according to the present invention.

[0015] In the diagram, 1. Glass pot, 2. Heating plate, 3. Fixed wall, 4. Sealant, 5. High-temperature resistant liquid, 6. Interlayer, 7. Support column, 8. Insulation plate, 9. Electrical connector, 10. Bottom shell, 11. Ceramic pot, 12. Nesting part, 13. Heating area, 14. Glass inner liner, 15. Metal plate, 16. Thermally conductive powder. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1 An embodiment of the present invention is a glass pot; like Figure 1 The image shows a glass pitcher comprising a heating plate mounting structure. The bottom of the pitcher 1 has a raised fixing wall 3. The heating plate 2 is placed within the fixing wall 3, and sealant 4 is filled between the heating plate 2 and the fixing wall 3. The heating plate 2 is fixed to the glass pitcher 1 by the sealant 4 and atmospheric pressure. A nested portion 12 extends away from the heating area 13, increasing the heated area of ​​the glass pitcher 1 and reducing the temperature at the edge of the heating plate 2. A sandwich layer 6 filled with a high-temperature resistant liquid 5 as a heat-conducting medium, tin, is located between the glass pitcher 1 and the heating plate 2. Support pillars 7 are provided within the sandwich layer 6. A heat insulation plate 8 is mounted on the heating plate 2, and components such as an electrical connector 9 are mounted on the heat insulation plate 8. A bottom shell 10 is mounted on the electrical connector 9.

[0018] Example 2 An embodiment of the present invention is a ceramic teapot; like Figure 2The image shows a ceramic kettle comprising a heating plate mounting structure. The heating plate 2 has a raised fixing wall 3 around its edge. The ceramic kettle 11 is placed within the fixing wall 3, and sealant 4 is filled between the ceramic kettle 11 and the fixing wall 3. The heating plate 2 is fixed to the ceramic kettle 11 by the sealant 4 and atmospheric pressure. A nested portion 12 extends away from the heating area 13, increasing the heated area of ​​the ceramic kettle 11 and reducing the temperature at the edge of the heating plate 2. A jacket 6 filled with a high-temperature resistant liquid 5 as a heat-conducting medium exists between the ceramic kettle 11 and the heating plate 2. The high-temperature resistant liquid is molten salt. Support columns 7 are provided within the jacket 6. A heat insulation plate 8 is mounted on the heating plate 2, and components such as an electrical connector 9 are mounted on the heat insulation plate 8. A bottom shell 10 is mounted on the electrical connector 9.

[0019] Example 3 An embodiment of the present invention is a glass inner pot for a rice cooker; like Figure 3 The image shows a glass inner pot for a rice cooker, comprising a heating plate mounting structure. Since the inner pot can be separated from the heating plate, a metal plate 15 is nested within the glass inner pot 14. The metal plate 15 has a raised fixing wall 3 around its perimeter. The glass inner pot 14 is placed within the fixing wall 3, and sealant 4 is filled between the glass inner pot 14 and the fixing wall 3. The sealant 4 and atmospheric pressure secure the metal plate 15 to the glass inner pot 14. The nested portion 12 extends away from the heating area 13, increasing the heat-receiving area of ​​the glass inner pot 14 and reducing the temperature at the edge of the metal plate 15. Graphite powder 16 is used as a heat-conducting powder between the glass inner pot 14 and the metal plate 15.

Claims

1. An electric heating plate mounting structure, characterized in that: The heated container is nested with the heating plate, and the items inside the heated container do not come into contact with the heating plate.

2. The installation structure according to claim 1, characterized in that: There is a jacket filled with a high-temperature resistant liquid as a heat-conducting medium between the heated container and the heating plate.

3. The installation structure according to claim 1, characterized in that: There is thermally conductive powder filling the space between the heated container and the heating plate.

4. The mounting structure according to claim 1, characterized in that: The heating plate is fixed to the container being heated by sealant and atmospheric pressure.

5. The installation structure according to claim 1, characterized in that: The nested installation involves a raised fixed wall around the heated container, with the heating plate placed inside the fixed wall.

6. The installation structure according to claim 1, characterized in that: The nested installation involves a raised fixed wall around the heating plate, with the heated container placed inside the fixed wall.

7. The mounting structure according to claim 1, characterized in that: A heat insulation plate is installed on the electric heating plate.

8. A cooking utensil, characterized by: It includes an electric heating plate mounting structure according to any one of claims 1 to 7.

9. A cooking utensil, characterized by: It includes an electric heating plate mounting structure according to any one of claims 1 to 6, wherein the electric heating plate does not contain an electric heating tube.

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