锅体和烹饪器具
By designing an arched section composed of a first and second arc surface on the bottom wall of the pot, the problem of thermal resistance caused by the uncertainty of contact between the pot and the heating plate is solved, achieving more uniform heat transfer and accurate detection by the thermostat, thus improving the energy efficiency of the cooking appliance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, the uncertainty of the contact position between the pot body and the heating plate leads to an increase in thermal resistance, which affects the uniformity of the temperature field and the efficiency of heat transfer in the cooking cavity, and may also affect the detection accuracy of the thermostat.
The bottom wall of the pot is designed with an arched section composed of a first arc surface and a second arc surface. The first arc surface is steeper and the second arc surface is gentler. The contact position is shifted from the edge to the center, reducing the thickness of the air insulation layer, improving heat transfer efficiency, and avoiding the influence of the temperature controller detection.
It improves the uniformity of heating in the middle of the pot and the efficiency of heat transfer, ensures the detection accuracy of the thermostat, and enhances the energy efficiency of the cooking appliance.
Smart Images
Figure CN224505221U_ABST
Abstract
Claims
1. A pan for a cooking appliance, characterized in that, The pot body includes: side wall of pot; A bottom wall is provided at the bottom of the side wall of the pot. The side wall of the pot surrounds the bottom wall of the pot and together with the bottom wall of the pot to form a cooking cavity. The surface of the bottom wall of the pot away from the cooking cavity includes an arched portion, which arches into the cooking cavity. The arched portion includes a first arc surface and a second arc surface. The center of the first arc surface and the center of the second arc surface are located on the side of the arched portion away from the cooking cavity. The second arc surface surrounds the outside of the first arc surface and is connected to the first arc surface. The radius of curvature of the first arc surface is a first radius of curvature, and the radius of curvature of the second arc surface is a second radius of curvature, wherein the second radius of curvature is greater than the first radius of curvature.
2. The kettle of claim 1, wherein With the center of the bottom wall of the pot as the center, the diameter of the circle containing the outer edge of the first arc surface is the first diameter; The ratio of the first diameter to the diameter of the circle containing the outer edge of the arch is a first ratio, which is greater than or equal to 0.2 and less than or equal to 0.
8.
3. The kettle of claim 2, wherein, The first ratio is greater than or equal to 0.4 and less than or equal to 0.
8.
4. The pot of claim 1, wherein The difference between the first radius of curvature and the second radius of curvature is greater than or equal to 10 mm and less than or equal to 400 mm.
5. The pot of claim 1, wherein The first radius of curvature is greater than or equal to 400 mm and less than or equal to 900 mm; The second radius of curvature is greater than or equal to 400 mm and less than or equal to 900 mm.
6. The pot body according to claim 5, characterized in that, The first radius of curvature is greater than or equal to 550 mm and less than or equal to 750 mm; The second radius of curvature is greater than or equal to 600 mm and less than or equal to 900 mm.
7. The kettle of any one of claims 1 to 6, wherein, The arched portion also includes: The third arc surface surrounds the outside of the second arc surface and is connected to the second arc surface. The third arc surface is arched inside the cooking cavity so that the center of the third arc surface is located on the side of the arched part away from the cooking cavity. The radius of curvature of the third arc surface is a third radius of curvature, wherein the third radius of curvature is greater than the second radius of curvature.
8. The pot body according to claim 7, characterized in that, With the center of the bottom wall of the pot as the center, the diameter of the circle containing the outer edge of the second arc surface is the second diameter; The ratio of the second diameter to the diameter of the circle containing the outer edge of the arch is the second ratio value, which is greater than or equal to 0.2 and less than or equal to 1.
9. The pot body according to claim 7, characterized in that, The difference between the second radius of curvature and the third radius of curvature is greater than or equal to 10 mm and less than or equal to 400 mm; and / or The third radius of curvature is greater than or equal to 500 mm and less than or equal to 900 mm.
10. The pot body according to any one of claims 1 to 6, characterized in that, When the volume of the pot body is greater than or equal to 1.5L and less than or equal to 2.5L: the diameter of the circle containing the outer edge of the arched part is greater than or equal to 100mm and less than or equal to 160mm; When the volume of the pot body is greater than or equal to 2.5L and less than or equal to 3.5L: the diameter of the circle containing the outer edge of the arched part is greater than or equal to 120mm and less than or equal to 180mm; When the volume of the pot body is greater than or equal to 3.5L and less than or equal to 5.5L: the diameter of the circle containing the outer edge of the arched part is greater than or equal to 150mm and less than or equal to 220mm.
11. A cooking appliance characterized by, include: The pot body as described in any one of claims 1 to 10.
12. The cooking appliance of claim 11, wherein, Also includes: A heating plate is disposed at the bottom of the pot body, and the side of the heating plate facing the bottom wall of the pot is at least partially arched towards the bottom wall of the pot; A thermostat is located in the middle of the heating plate.
13. The cooking utensil according to claim 12, characterized in that, The heating plate includes a heating tube, which is located near the connection between the first arc surface and the second arc surface; The heating plate is in contact with the second arc surface, or the connection between the first arc surface and the second arc surface is in contact with the heating plate.
14. The cooking appliance of claim 13, wherein, The heating plate includes a target position along the vertical direction of the cooking appliance, and the heating tube is at least partially disposed opposite to the target position; Wherein, with the center of the heating plate as the center, the diameter of the circle where the target position is located is the third diameter, the ratio of the third diameter to the diameter of the heating plate is the third ratio, the second ratio of the pot body is greater than the third ratio, and the third ratio is greater than the first ratio of the pot body.
15. The cooking appliance according to any one of claims 11 to 14, characterized in that, The cooking appliance includes any one of a rice cooker, an electric pressure cooker, and an electric slow cooker.