Healthy electric cooker with stainless pure iron inner container
By using a stainless steel pure iron inner pot and a spiral heating wire design, the problem of slow heating speed in existing rice cookers has been solved, achieving rapid and even heating of the inner pot.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU RONGCAN TECHNOLOGY CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-05-08
AI Technical Summary
Most existing rice cookers concentrate the heat source at the bottom of the inner pot, requiring a long heating time to ensure even heating and resulting in a slow heating speed.
It adopts a stainless steel pure iron inner liner design, with the inner liner being spherical and the heat-conducting wire spirally arranged on the outside of the inner liner. The heat-conducting base plate heats the bottom of the inner liner, and the heat-conducting wire heats the outer wall of the inner liner's arc surface. The combination of the heat-conducting base plate and the heat-conducting wire design achieves rapid and uniform heating of the inner liner.
It improves heating efficiency, allowing the bottom of the inner liner and the outer wall to be heated evenly at the same time, thus shortening the heating time.
Smart Images
Figure CN224206595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cooking equipment technology, specifically a healthy rice cooker with a stainless steel pure iron inner pot. Background Technology
[0002] An electric rice cooker is a modern cooking appliance capable of steaming, boiling, stewing, simmering, and braising. It not only cooks food but also keeps it warm. It is clean, hygienic, and pollution-free to use, saving time and effort, making it an indispensable tool for modern household chores.
[0003] Existing rice cookers typically consist of a main body and an inner pot within the cooking cavity. A heating unit is installed at the bottom of the cooking cavity to heat the bottom of the inner pot, thereby cooking the food. However, this heating method usually concentrates the heat source at the bottom of the inner pot, requiring a long heating time to ensure even heating of the inner pot. The heating speed is relatively slow, which has certain shortcomings.
[0004] Therefore, this application provides a healthy rice cooker with a stainless steel pure iron inner pot to solve the above problems. Utility Model Content
[0005] This application provides a healthy rice cooker with a stainless steel pure iron inner pot, aiming to solve the problems mentioned in the background art, such as the fact that the existing rice cooker heating methods mostly concentrate the heat source at the bottom of the inner pot, requiring a long heating time to make the inner pot evenly heated, and the heating speed is relatively slow, which has certain shortcomings.
[0006] To achieve the above objectives, this application provides the following technical solution: a stainless steel pure iron inner pot healthy rice cooker, comprising a cooker body, a cooking cavity formed on the cooker body, a heating module electrically connected to the cooker body and fixedly installed at the bottom of the cooking cavity, and an inner pot inserted into the cooking cavity:
[0007] The inner liner is spherically hollow, and an integrally formed inner liner ring is fixedly installed at the rim of the inner liner.
[0008] A heat-conducting base plate, electrically connected to the heating module, is fixedly installed at the bottom of the cooking cavity. A heat-conducting wire adapted to the cooking cavity is fixedly installed on the heat-conducting base plate. The heat-conducting wire is arranged in a spiral disc shape, extending from one end near the heat-conducting base plate towards the top opening of the cooking cavity. The inner ring formed by the heat-conducting wire is adapted to the inner pot, and the heat-conducting wire surrounds the outside of the inner pot. Thus, in use, the inner pot is placed inside the cooking cavity, the heat-conducting wire wraps around the curved outer wall of the inner pot, and the heat-conducting base plate supports the bottom of the inner pot. During cooking, the heating module heats the heat-conducting base plate and the heat-conducting wire. The heat-conducting base plate heats the bottom of the inner pot, and the heat-conducting wire heats the curved outer wall of the inner pot. The disc-shaped heat-conducting wire can evenly conduct heat to the outer wall of the inner pot. Compared to existing technologies that concentrate heating at the bottom of the inner pot, this method allows for faster and more even heating of both the bottom and outer wall, thereby improving heating efficiency.
[0009] Preferably, in order to stably hold food, the overall height of the inner liner in cross-section is greater than one-half and less than four-fifths of the diameter of the sphere, and the bottom and top inner liner rings of the inner liner are horizontally parallel in cross-section to ensure that food does not leak inside the inner liner.
[0010] Preferably, in order to improve the heat conduction rate, an arc-shaped insulating outer liner is fitted on the outer wall of the inner liner and is adapted to the outer wall of the inner liner. The insulating outer liner overlaps the heat-conducting base plate. The diameter of the outer liner's opening is adapted to the maximum diameter of the outer wall of the inner liner. An insulating cylinder with a cylindrical shape adapted to the maximum diameter of the outer wall of the inner liner is fixedly installed on the insulating outer liner, so that the heat is more evenly distributed on the inner liner.
[0011] Preferably, in order to protect the heat-conducting wire, the insulating cylinder extends from one end near the outer insulating liner to the end near the inner liner ring. The outer insulating liner and the insulating cylinder are integrally formed and are disposed inside the inner ring of the heat-conducting wire to ensure heat conduction efficiency.
[0012] Preferably, for waterproofing and dustproofing, a protective cover adapted to the cooking cavity is fixedly installed inside the cooking cavity, surrounding the heating wire. A shielding ring adapted to the outer wall of the inner liner is fixedly installed on the top of the protective cover, thereby achieving waterproofing and dustproofing and improving the service life of the equipment.
[0013] Preferably, in order to improve the durability of the inner liner, the inner liner includes a base material layer, the inner and outer walls of the base material layer are covered with a reinforcing layer, the reinforcing layer is covered with a rust-proof layer, and a hard nitride layer is formed on the surface of pure iron by nitriding.
[0014] This rice cooker places the inner pot inside the cooking cavity. A heating wire wraps around the curved outer wall of the inner pot, and a heating base plate supports the bottom of the inner pot. During cooking, the heating module heats the heating base plate and the heating wire. The heating base plate heats the bottom of the inner pot, while the heating wire heats the curved outer wall of the inner pot. The disc-shaped heating wire evenly distributes heat to the outer wall of the inner pot. Compared to existing technologies that concentrate heating at the bottom of the inner pot, this method allows for faster and more even heating of both the bottom and outer wall, thus improving heating efficiency.
[0015] The rice cooker's base layer is made of pure iron, which has a higher heat conductivity than stainless steel and aluminum alloy. The reinforcing layer is made by nitriding the surface of pure iron, which forms a hard nitride layer on the surface of pure iron through nitriding, thereby improving the strength and wear resistance of the base layer. The rust-proof layer is made by oxidizing the surface of pure iron, forming an oxide layer with the surface of pure iron, which plays a role in anti-oxidation and rust prevention. Attached Figure Description
[0016] Figure 1 A schematic diagram of the external structure of a healthy rice cooker with a stainless steel pure iron inner pot.
[0017] Figure 2 A schematic diagram of the cross-sectional structure of a healthy rice cooker with a stainless steel pure iron inner pot;
[0018] Figure 3 A schematic diagram of the internal structure of a healthy rice cooker with a stainless steel pure iron inner pot.
[0019] Figure 4 A schematic diagram of the internal structure of a healthy rice cooker with a stainless steel pure iron inner pot.
[0020] Figure 5 A schematic diagram of the internal structure of a healthy rice cooker with a stainless steel pure iron inner pot.
[0021] Figure 6 for Figure 2 Enlarged diagram of point A in the middle.
[0022] In the picture:
[0023] 1. Pot body; 11. Cooking cavity; 12. Heating module; 13. Heat-conducting base plate; 14. Heat-conducting wire; 2. Inner pot; 21. Inner pot ring; 22. Insulating outer pot; 23. Insulating cylinder; 24. Protective cover; 25. Shielding ring; 201. Substrate layer; 202. Reinforcing layer; 203. Rust-proof layer. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] Example 1
[0026] This embodiment provides a healthy rice cooker with a stainless steel pure iron inner pot, such as... Figure 1-6 As shown, the rice cooker includes a cooker body 1, a cooking cavity 11 formed on the cooker body 1, a heating module 12 electrically connected to the cooker body 1 and fixedly installed at the bottom of the cooking cavity 11, and an inner pot 2 inserted into the cooking cavity 11.
[0027] The inner liner 2 is spherically hollow, and an integrally formed inner liner ring 21 is fixedly installed at the rim of the inner liner 2;
[0028] A heat-conducting base plate 13 electrically connected to the heating module 12 is fixedly installed at the bottom of the cooking cavity 11. A heat-conducting wire 14 adapted to the cooking cavity 11 is fixedly installed on the heat-conducting base plate 13. The heat-conducting wire 14 is arranged in a spiral shape. The heat-conducting wire 14 extends from one end near the heat-conducting base plate 13 toward the top opening of the cooking cavity 11. The inner ring formed by the heat-conducting wire 14 is adapted to the inner pot 2. The heat-conducting wire 14 is arranged around the outside of the inner pot 2.
[0029] In use, the inner pot 2 is placed inside the cooking cavity 11. The heating wire 14 wraps around the outer curved surface of the inner pot 2, and the heating base plate 13 supports the bottom of the inner pot 2. During cooking, the heating module 12 heats the heating base plate 13 and the heating wire 14. The heating base plate 13 heats the bottom of the inner pot 2, and the heating wire 14 heats the outer curved surface of the inner pot 2. The disc-shaped heating wire 14 can evenly guide the heat to the outer wall of the inner pot 2. Compared with the existing technology that concentrates the heating on the bottom of the inner pot 2, it can achieve uniform heating of the bottom and outer wall of the inner pot 2 more quickly, thereby improving the heating efficiency.
[0030] Understandably, compared to existing cylindrical containers, the spherical inner liner 2 is more conducive to the rice tumbling and ensures even heating.
[0031] Specifically, the overall height of the inner liner 2 in cross-section is greater than one-half and less than four-fifths of the diameter of the sphere, and the bottom and top inner liner rings 21 of the inner liner 2 are horizontally parallel in cross-section.
[0032] When in use, the overall height of the inner liner 2 in cross-section is greater than one-half and less than four-fifths of the diameter of the sphere, which ensures that the inner liner 2 has sufficient capacity and that food does not leak inside the inner liner 2.
[0033] More specifically, an outer insulating liner 22, which is arc-shaped and adapted to the outer wall of the inner liner 2, is fitted on the outer wall of the inner liner 2. The outer insulating liner 22 overlaps the heat-conducting base plate 13. The diameter of the outer insulating liner 22 is adapted to the maximum diameter of the outer wall of the inner liner 2. An insulating cylinder 23, which is cylindrical and adapted to the maximum diameter of the outer wall of the inner liner 2, is fixedly installed on the outer insulating liner 22.
[0034] When in use, the outer insulating liner 22 and the insulating cylinder 23 are placed into the cooking cavity 11 as a whole, embedded between the inner rings of the heat-conducting wire 14 and in contact with the heat-conducting wire 14. When the heat-conducting wire 14 conducts heat, it quickly conducts heat to the outer insulating liner 22 and the insulating cylinder 23, so that the heat is more evenly distributed on the inner liner 2.
[0035] It should be noted that the outer insulating liner 22 and the insulating cylinder 23 are made of thermally conductive metal and are completely fitted with the inner liner 2. Their thickness is less than that of the inner liner 2 to ensure thermal conductivity.
[0036] Furthermore, the isolation cylinder 23 extends from the end near the outer isolation liner 22 toward the end near the inner liner ring 21. The outer isolation liner 22 and the isolation cylinder 23 are integrally formed and are disposed within the inner ring of the heat-conducting wire 14.
[0037] When in use, the outer liner 22 and the inner liner 23 are combined to completely isolate the heat-conducting wire 14 and the inner liner 2, preventing water stains or debris on the surface of the inner liner 2 from directly contacting the heat-conducting wire 14 and the heat-conducting base plate 13 after cleaning and causing contamination, thus ensuring heat conduction efficiency.
[0038] Furthermore, a protective cover 24 adapted to the cooking cavity 11 is fixedly installed inside the cooking cavity 11, surrounding the outside of the heating wire 14. A shielding ring 25 adapted to the outer wall of the inner liner 21 is fixedly installed on the top of the protective cover 24.
[0039] During use, the protective cover 24 and the shielding ring 25 seal the cooking cavity 11 of the pot body 1, so that the internal heat-conducting wire 14 and heat-conducting base plate 13 do not come into contact with the outside, thereby achieving waterproof and dustproof effects and improving the service life of the equipment.
[0040] Example 2
[0041] Unlike Example 1, traditional aluminum and stainless steel inner liner have poor thermal conductivity and pose risks of coating peeling and heavy metal leaching. Therefore, the inner liner 2 includes a substrate layer 201, and both the inner and outer walls of the substrate layer 201 are covered with a reinforcing layer 202. The reinforcing layer 202 is covered with a rust-proof layer 203.
[0042] In use, the substrate layer 201 is made of pure iron, which has a higher thermal conductivity than stainless steel and aluminum alloy. The reinforcing layer 202 is made by nitriding the surface of pure iron. By nitriding, a hard nitride layer is formed on the surface of pure iron, which improves the strength and wear resistance of the substrate layer 201. The anti-rust layer 203 is made by oxidizing the surface of pure iron, forming an oxide layer with the surface of pure iron, which plays a role in anti-oxidation and anti-rust.
[0043] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A stainless steel pure iron inner pot healthy rice cooker, comprising a cooker body (1), a cooking cavity (11) formed on the cooker body (1), a heating module (12) electrically connected to the cooker body (1) and fixedly installed at the bottom of the cooking cavity (11), and an inner pot (2) inserted into the cooking cavity (11), characterized in that: The inner liner (2) is spherically hollow, and an integrally formed inner liner ring (21) is fixedly installed at the rim of the inner liner (2). A heat-conducting base plate (13) electrically connected to the heating module (12) is fixedly installed at the bottom of the cooking cavity (11). A heat-conducting wire (14) adapted to the cooking cavity (11) is fixedly installed on the heat-conducting base plate (13). The heat-conducting wire (14) is arranged in a spiral shape. The heat-conducting wire (14) extends from one end near the heat-conducting base plate (13) toward the top opening of the cooking cavity (11). The inner ring formed by the heat-conducting wire (14) is adapted to the inner pot (2). The heat-conducting wire (14) is arranged around the outside of the inner pot (2).
2. A healthy rice cooker with a stainless steel pure iron inner pot according to claim 1, characterized in that: The overall height of the inner liner (2) in the cross-section is greater than one-half and less than four-fifths of the diameter of the sphere. The inner liner (2) at the bottom and the inner liner ring (21) at the top are horizontally parallel in the cross-section.
3. A healthy rice cooker with a stainless steel pure iron inner pot according to claim 2, characterized in that: An arc-shaped isolation outer liner (22) is fitted on the outer wall of the inner liner (2) and is adapted to the outer wall of the inner liner (2). The isolation outer liner (22) overlaps on the heat-conducting base plate (13). The diameter of the ring of the isolation outer liner (22) is adapted to the maximum diameter of the outer wall of the inner liner (2). An isolation cylinder (23) in a cylindrical shape is fixedly installed on the isolation outer liner (22) and is adapted to the maximum diameter of the outer wall of the inner liner (2).
4. A healthy rice cooker with a stainless steel pure iron inner pot according to claim 3, characterized in that: The isolation cylinder (23) extends from one end near the outer isolation liner (22) toward the end near the inner liner ring (21). The outer isolation liner (22) and the isolation cylinder (23) are integrally formed. The outer isolation liner (22) and the isolation cylinder (23) are disposed inside the inner ring of the heat-conducting wire (14).
5. A healthy rice cooker with a stainless steel pure iron inner pot according to claim 1, characterized in that: The cooking cavity (11) is fixedly installed with a protective cover (24) that is adapted to the cooking cavity (11) and surrounds the heat-conducting wire (14). The top of the protective cover (24) is fixedly installed with a shielding ring (25) that is adapted to the outer wall of the inner liner (21).
6. A healthy rice cooker with a stainless steel pure iron inner pot according to claim 1, characterized in that: The inner liner (2) includes a base material layer (201), and the inner and outer walls of the base material layer (201) are covered with a reinforcing layer (202), and the reinforcing layer (202) is covered with a rust-proof layer (203).