Inner pot and rice cooker
Patent Information
- Application Number
- CN202522191391.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-16
AI Technical Summary
目前常规的电饭煲中的内胆大多在侧壁与底壁之间由大圆弧结构进行过渡，在烹饪的沸腾阶段，沸腾时产生的气泡容易沿过渡区壁流动至顶部的锅壁顶沿处，使得烹饪好的米饭在形态上存在周边凸起而中间凹陷的情况，同时也会使得周边的米饭更湿软，对米饭的均匀性造成影响，进而影响口感
[0017]本实用新型中底壁和侧壁之间通过过渡区进行连接，过渡区上至少设置有两个竖直导流部，且竖直导流部均设置为由内胆的内壁向上凸起的环形结构，以此能够有效避免在沸腾阶段，沸腾的气泡直接由过渡区沿侧壁流动，使得米饭周边湿软，影响米饭的均匀性。具体地，竖直导流部的设置能够对过渡区处沸腾的气泡进行阻挡，并对气泡进行引导，使得气泡在过渡区处沿竖直导流部的外沿朝向内胆内部向上流动，而不是沿侧壁流动，以此提升电饭煲煮饭的均匀性和蓬松度，达到优化口感的目的。
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Figure CN224806343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice cooker technology, and in particular to an inner pot and a rice cooker. Background Technology
[0002] The inner pot of rice cookers is constantly being improved and upgraded in terms of materials and design to ensure the best taste of rice. Specifically, ensuring even heating of the rice and stable heat transfer during the cooking process is crucial for achieving optimal taste. Currently, most conventional rice cooker inner pots have a large arc structure transitioning between the side and bottom walls. During the boiling stage, the bubbles generated tend to flow along the transition zone to the top edge of the pot, resulting in cooked rice that is convex around the edges and concave in the center. This also makes the rice around the edges softer and more soggy, affecting the uniformity of the rice and thus its taste. Therefore, how to prevent boiling bubbles from flowing along the side walls, guide the flow of bubbles, improve the uniformity and fluffiness of rice cooking, and optimize the taste are problems that researchers in this field need to solve. Utility Model Content
[0003] The purpose of this invention is to provide an inner pot and rice cooker that prevents boiling bubbles from flowing along the side wall, guides the flow of bubbles, improves the uniformity and fluffiness of rice cooked in the rice cooker, and optimizes the taste.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] The inner liner includes:
[0006] The system includes a bottom wall, a transition zone, and a side wall. The two sides of the transition zone are connected to the bottom wall and the side wall, respectively, and at least two vertical guide sections are provided on the transition zone.
[0007] Optionally, the vertical guide portion includes a first vertical guide portion and / or a second vertical guide portion, both of which are configured as annular structures protruding upward from the inner wall of the inner liner.
[0008] Alternatively, the first vertical guide portion is formed by the outer wall of the transition zone being recessed towards the inner wall and the inner wall being protruding away from the outer wall.
[0009] Alternatively, the second vertical guide portion is formed by a smooth transition from the outer wall of the transition zone and an inner wall protruding away from the outer wall.
[0010] Optionally, at least two vertical guide sections are arranged on the bottom wall, both vertical guide sections are arranged in a ring, and the two vertical guide sections are configured as concentric rings with the center of the bottom wall as the center.
[0011] Optionally, the vertical guide portion includes a third vertical guide portion and / or a fourth vertical guide portion, wherein the third vertical guide portion has the same structure as the second vertical guide portion, and the fourth vertical guide portion has the same structure as the first vertical guide portion.
[0012] Optionally, the height of the vertical guide relative to the inner wall of the transition zone is set to h, and the value of h is in the range of 0.3mm-3mm.
[0013] Optionally, the height h of the vertical guide relative to the inner wall of the transition zone is set to a range of 1mm-2mm.
[0014] Alternatively, the bottom wall may be configured as an arc-shaped structure, and the side of the bottom wall facing away from the interior of the inner liner may be recessed.
[0015] On the other hand, a rice cooker, which includes an inner pot and a main body, wherein the inner pot is disposed within the main body.
[0016] The beneficial effects of this utility model are:
[0017] In this invention, the bottom wall and side walls are connected by a transition zone. At least two vertical guide sections are provided in the transition zone, each a ring-shaped structure protruding upwards from the inner wall of the inner pot. This effectively prevents boiling bubbles from flowing directly along the side walls from the transition zone during the boiling stage, which would cause the rice to become soggy around the edges and affect its uniformity. Specifically, the vertical guide sections block and guide the boiling bubbles in the transition zone, causing them to flow upwards along the outer edge of the vertical guide sections towards the inside of the inner pot, rather than along the side walls. This improves the uniformity and fluffiness of the rice cooked in the rice cooker, thus optimizing the taste. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view of the inner liner in Embodiment 1 of this utility model, in which a first vertical guide portion is provided in the transition zone.
[0019] Figure 2 This is a partially enlarged view of the first vertical guide section in the inner liner transition zone as described in Embodiment 1 of this utility model;
[0020] Figure 3 This is a top view of the inner liner transition area provided with a first vertical guide section as described in Embodiment 1 of this utility model;
[0021] Figure 4 This is a cross-sectional view of the inner liner transition area provided with a second vertical guide portion as described in Embodiment 2 of this utility model;
[0022] Figure 5This is a cross-sectional view of the inner liner transition area provided with a second vertical guide portion as described in Embodiment 2 of this utility model;
[0023] Figure 6 This is a top view of the inner liner transition area provided with a second vertical guide section as described in Embodiment 2 of this utility model;
[0024] Figure 7 This is a cross-sectional view of the inner liner transition area provided with a second vertical guide section and a third vertical guide section as described in Embodiment 4 of this utility model;
[0025] Figure 8 This is a top view of the inner liner transition area provided with a second vertical guide section and a third vertical guide section as described in Embodiment 4 of this utility model.
[0026] In the picture:
[0027] 100 - Inner liner; 10 - Bottom wall; 20 - Transition zone; 30 - Side wall;
[0028] 1a - First vertical guide section; 1b - Second vertical guide section; 1c - Third vertical guide section. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] The technical solution of this embodiment will be further described below with reference to the accompanying drawings and specific implementation methods.
[0033] Example 1
[0034] like Figures 1-3 As shown, this embodiment provides an inner pot 100, which includes a bottom wall 10, a transition zone 20, and a side wall 30. Specifically, the two sides of the transition zone 20 are connected to the bottom wall 10 and the side wall 30, respectively, and at least two vertical guide sections are provided on the transition zone 20. This optimizes the structure of the inner pot 100 and prevents bubbles from flowing along the transition zone 20 to the top of the side wall 30 during cooking, which would make the surrounding rice wet and soft. In this embodiment, the vertical guide sections can guide the boiling bubbles to flow upward into the cavity at the vertical guide sections, instead of flowing along the side wall 30, effectively improving the uniformity and fluffiness of the rice and enhancing its taste.
[0035] Optionally, the bottom wall 10 is configured with an arc-shaped structure, and the side of the bottom wall 10 facing away from the interior of the inner pot 100 is recessed. Specifically, the outer edge of the bottom wall 10 gradually rises relative to the bottom surface of the inner pot 100 from its center position. Correspondingly, the center position of the bottom wall 10 has the highest height relative to the bottom surface of the inner pot 100, to further avoid the problem of a central depression during rice cooking. Furthermore, the transition zone 20 is connected to the side wall 30 and the bottom wall 10 on its upper and lower sides, respectively, to ensure the uniformity of rice during cooking. For example, the bottom wall 10 is arranged horizontally, the side wall 30 is arranged vertically, and the transition zone 20 is configured with an arc-shaped structure and smoothly connected to the bottom wall 10 and the side wall 30, thereby forming the inner pot 100.
[0036] Specifically, in this embodiment, the vertical guide section is configured as an annular structure protruding upward from the inner wall of the inner liner 100. This closed annular structure ensures that all air bubbles in the transition zone 20 can be effectively guided. For example, the height of each vertical guide section relative to the inner wall of the transition zone 20 is set to h, and the value of h ranges from 0.3mm to 3mm. Specifically, in this embodiment, the height h of the vertical guide section relative to the inner wall of the transition zone 20 is set to a range of 1mm to 2mm. In other embodiments, the value and range of h can be precisely set as needed to ensure that air bubbles can be effectively guided.
[0037] Optionally, each vertical guide portion is configured as a first vertical guide portion 1a. The first vertical guide portion 1a is formed by being concave towards the inner wall along the outer wall of the transition zone 20 and convex away from the outer wall. The height between the top of the first vertical guide portion 1a and the inner wall of the transition zone 20 is h. Specifically, both the inner and outer walls of the first vertical guide portion 1a convex towards the interior of the inner liner 100 to ensure that the air bubbles are effectively guided. Exemplarily, in this embodiment, two first vertical guide portions 1a are provided, and the two first vertical guide portions 1a are spaced apart along the axial direction of the inner liner 100 in the circumferential direction of the transition zone 20. Specifically, the inner diameter of the first vertical guide portion 1a farther from the bottom wall 10 is larger than the inner diameter of the first vertical guide portion 1a closer to the bottom wall 10.
[0038] On the other hand, the rice cooker in this embodiment includes the aforementioned inner pot 100 and the main body, and the inner pot 100 is movably disposed within the main body, thereby facilitating the user to take out and put in the inner pot 100.
[0039] Example 2
[0040] This embodiment provides an inner liner, and its components that are the same as or corresponding to those in Embodiment 1 are referred to using the same or corresponding reference numerals as those in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.
[0041] like Figures 4-6 As shown, in this embodiment, all vertical guide sections are configured as second vertical guide sections 1b. The second vertical guide section 1b is formed by a smooth transition of the outer wall of the transition zone 20 and a protrusion of the inner wall away from the outer wall. The height between the top of the second vertical guide section 1b and the inner wall of the transition zone 20 is h. Specifically, in the second vertical guide section 1b, only the inner wall protrudes towards the interior of the inner liner 100, while the outer wall has a smooth transition without depressions or protrusions, resulting in higher structural stability, less deformation, and a longer service life. For example, in this embodiment, two second vertical guide sections 1b are provided, and the two second vertical guide sections 1b are spaced apart along the axial direction of the inner liner 100 around the circumference of the transition zone 20. Specifically, the inner diameter of the second vertical guide section 1b farther from the bottom wall 10 is larger than the inner diameter of the second vertical guide section 1b closer to the bottom wall 10.
[0042] Example 3
[0043] The difference between this embodiment and Embodiment 2 is that in this embodiment, the vertical guide section is provided with both a first vertical guide section 1a and a second vertical guide section 1b, and the distribution of the first vertical guide section 1a and the second vertical guide section 1b can be set as needed.
[0044] Example 4
[0045] This embodiment provides an inner liner, and the same or corresponding components as in Embodiment 2 are referred to using the same or corresponding reference numerals as in Embodiment 2. For simplicity, only the differences between this embodiment and Embodiment 2 are described below.
[0046] Optionally, in this embodiment, at least two vertical guide sections are also arranged on the bottom wall 10. Both vertical guide sections are arranged in a ring, and the two vertical guide sections are set as concentric rings with the center of the bottom wall 10 as the center. Optionally, in this embodiment, all vertical guide sections are set as third vertical guide sections 1c.
[0047] Optionally, the third vertical guide section 1c has the same structure as the second vertical guide section 1b, that is, the third vertical guide section 1c is formed by a smooth transition from the outer wall of the bottom wall 10 and an inner wall protruding away from the outer wall. Specifically, in this embodiment, two third vertical guide sections 1c are also provided, and the two third vertical guide sections 1c are spaced apart on the bottom wall 10 and are set as concentric rings. Specifically, the inner diameter of the third vertical guide section 1c farther from the center of the bottom wall 10 is larger than the inner diameter of the third vertical guide section 1c closer to the center of the bottom wall 10.
[0048] like Figures 7-8 As shown, by way of example, in this embodiment, the transition zone 20 is provided with a second vertical guide section 1b, and the bottom wall 10 is provided with a third vertical guide section 1c.
[0049] Example 5
[0050] The difference between this embodiment and embodiment four is that in this embodiment, the vertical guide section on the transition zone 20 is set as the first vertical guide section 1a, and the vertical guide section on the bottom wall 10 is set as the third vertical guide section 1c.
[0051] Example 6
[0052] The difference between this embodiment and embodiment four is that, in this embodiment, the vertical guide section on the transition zone 20 is provided with both a first vertical guide section 1a and a second vertical guide section 1b, and the distribution of the first vertical guide section 1a and the second vertical guide section 1b can be set as needed. At the same time, the vertical guide sections on the bottom wall 10 are all set as third vertical guide sections 1c.
[0053] Example 7
[0054] This embodiment provides an inner liner, and its components that are the same as or corresponding to those in Embodiment 4 are referred to using the same or corresponding reference numerals as those in Embodiment 4. For simplicity, only the differences between this embodiment and Embodiment 4 are described below.
[0055] Optionally, in this embodiment, all vertical guide portions on the bottom wall 10 are configured as fourth vertical guide portions. The fourth vertical guide portion has the same structure as the first vertical guide portion 1a, that is, the fourth vertical guide portion is formed by being concave towards the inner wall along the outer wall of the bottom wall 10 and protruding away from the outer wall. Specifically, in this embodiment, two fourth vertical guide portions are also provided, and the two fourth vertical guide portions are spaced apart on the bottom wall 10 and configured as concentric rings. Specifically, the inner diameter of the fourth vertical guide portion farther from the center of the bottom wall 10 is larger than the inner diameter of the fourth vertical guide portion closer to the center of the bottom wall 10.
[0056] For example, in this embodiment, the transition zone 20 is provided with a second vertical guide section 1b, and the bottom wall 10 is provided with a fourth vertical guide section.
[0057] Example 8
[0058] The difference between this embodiment and embodiment seven is that in this embodiment, the vertical guide section on the transition zone 20 is all set as the first vertical guide section 1a, and the vertical guide section on the bottom wall 10 is all set as the fourth vertical guide section.
[0059] Example 9
[0060] The difference between this embodiment and embodiment seven is that, in this embodiment, the vertical guide section on the transition zone 20 is provided with both a first vertical guide section 1a and a second vertical guide section 1b, and the distribution of the first vertical guide section 1a and the second vertical guide section 1b can be set as needed. At the same time, the vertical guide sections on the bottom wall 10 are all set as fourth vertical guide sections.
[0061] Example 10
[0062] The difference between this embodiment and embodiment seven is that, in this embodiment, the vertical guide section on the transition zone 20 is provided with both a first vertical guide section 1a and a second vertical guide section 1b, and the distribution of the first vertical guide section 1a and the second vertical guide section 1b can be set as needed. At the same time, the vertical guide section on the bottom wall 10 is provided with both a third vertical guide section 1c and a fourth vertical guide section, and the distribution of the third vertical guide section 1c and the fourth vertical guide section can be set as needed.
[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. The inner liner, characterized in that, include: The bottom wall (10), the transition zone (20) and the side wall (30) are respectively connected to the bottom wall (10) and the side wall (30) on both sides of the transition zone (20), and at least two vertical guide parts are provided on the transition zone (20).
2. The inner liner according to claim 1, characterized in that, The vertical guide section includes a first vertical guide section (1a) and / or a second vertical guide section (1b), both of which are configured as annular structures protruding upward from the inner wall of the inner liner.
3. The inner liner according to claim 2, characterized in that, The first vertical guide section (1a) is formed by the outer wall of the transition zone (20) being concave towards the inner wall and the inner wall being convex away from the outer wall.
4. The inner liner according to claim 2, characterized in that, The second vertical guide section (1b) is formed by the smooth transition of the outer wall of the transition zone (20) and the inner wall protruding away from the outer wall.
5. The inner liner according to claim 2, characterized in that, At least two vertical guide sections are arranged on the bottom wall (10), both vertical guide sections are arranged in a ring, and the two vertical guide sections are set as concentric rings with the center of the bottom wall (10) as the center.
6. The inner liner according to claim 5, characterized in that, The vertical flow guide includes a third vertical flow guide (1c) and / or a fourth vertical flow guide. The third vertical flow guide (1c) has the same structure as the second vertical flow guide (1b), and the fourth vertical flow guide has the same structure as the first vertical flow guide (1a).
7. The inner liner according to claim 1, characterized in that, The height of the vertical guide section relative to the inner wall of the transition zone (20) is set to h, and the value of h is within the range of 0.3mm-3mm.
8. The inner liner according to claim 7, characterized in that, The height h of the vertical guide section relative to the inner wall of the transition zone (20) is set to a range of 1mm-2mm.
9. The inner liner according to claim 1, characterized in that, The bottom wall (10) is configured as an arc-shaped structure, and the bottom wall (10) is recessed on the side opposite to the inside of the inner liner.
10. An electric rice cooker, characterized in that, It includes the inner liner and the body as described in any one of claims 1-9, wherein the inner liner is disposed within the body.