Cooking pot assembly and electric rice cooker

Abstract

The utility model relates to kitchen appliance technical field discloses a kind of pot body assembly and electric rice cooker, pot body assembly includes: support ring, inner pot is equipped in support ring;Base, be connected below support ring;Heat preservation device, be equipped at the outside of inner pot, one side of heat preservation device is fixedly connected with support ring, the other side is fixedly connected with base, heat preservation device is equipped with heat preservation cavity, energy storage medium is equipped in heat preservation cavity, energy storage medium is used to absorb heat when electric rice cooker is in cooking state, and release heat when electric rice cooker is in power-off state. By setting heat preservation device, energy storage medium is equipped in the heat preservation cavity of heat preservation device, energy storage medium can absorb heat when electric rice cooker is in cooking state, and release heat when electric rice cooker is in power-off state, energy storage medium can pass outer pot to inner pot transmission absorbed heat, and then food is heat preserved, so that electric rice cooker can still realize long time heat preservation effect even if moving to dining table, improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a rice cooker body assembly and a rice cooker. Background Technology

[0002] An electric rice cooker, also known as a rice pot, 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] Currently, rice cookers on the market automatically enter a keep-warm stage after cooking rice, maintaining this temperature through continuous electric heating. During cooking, most of the heat is transferred to the inner pot, heating the food inside. A small portion of heat is lost through the outer pot, resulting in low energy efficiency and energy waste. Furthermore, when the rice cooker is placed on a table without power, meaning it's unpowered, the rice cools down quickly due to the lack of continuous heating, failing to maintain a proper temperature. Consequently, the rice may not be at the ideal temperature when consumed.

[0004] Existing rice cookers use insulation cotton to reduce energy radiation damage, but in actual use, even with the addition of insulation cotton, the rice cooker's heat preservation effect is not significantly improved, and the rice will still cool down quickly after the power is turned off. Utility Model Content

[0005] In view of this, the present invention provides a rice cooker body assembly and a rice cooker to solve the problem that existing rice cookers cannot effectively keep rice warm after the power is cut off, and the rice cools down quickly.

[0006] In a first aspect, this utility model provides a rice cooker body assembly for use in a rice cooker, the rice cooker body assembly comprising:

[0007] Support ring;

[0008] The inner pot is located on the inner side of the support ring;

[0009] The base is connected to the lower part of the support ring;

[0010] A heat preservation device is provided on the outside of the inner pot, between the support ring and the base. The heat preservation device has a heat preservation cavity, and the heat preservation cavity contains an energy storage medium. The energy storage medium is used to absorb heat when the rice cooker is in the cooking state and release heat when the rice cooker is in the power-off state.

[0011] Beneficial effects: By installing a heat preservation device on the outside of the inner pot, located between the support ring and the base, the heat preservation device is easy to assemble and its reliability is improved. Simultaneously, because the heat preservation cavity contains an energy storage medium, this medium absorbs heat when the rice cooker is cooking and releases heat when the rice cooker is powered off. Thus, when the rice cooker is cooking, the energy storage medium absorbs and utilizes the heat emitted by the outer pot, and when the rice cooker is powered off, it transfers the absorbed heat through the outer pot to the inner pot, thereby keeping the food in the inner pot warm. This reduces heat preservation energy consumption, improves energy efficiency, and allows the rice cooker to maintain a long-term warming effect even when the power is off and the rice cooker is moved to the dining table, enhancing the user experience.

[0012] In one alternative embodiment, the pot body assembly includes:

[0013] An outer pot is located outside the inner pot, and the outer pot is equipped with the heat preservation device.

[0014] Beneficial effects: By placing the heat preservation device on the outside of the outer pot, the space on the outside of the outer pot can be used more efficiently, preventing the problem of narrow space when placing the heat preservation device between the inner pot and the outer pot. At the same time, placing the heat preservation device on the outside of the outer pot does not require any modification to the existing structure of the rice cooker.

[0015] In one alternative embodiment, the heat preservation device includes a heat preservation shell that surrounds the heat preservation cavity.

[0016] Beneficial effects: By setting the insulation device to include an insulation shell, which in turn encloses an insulation cavity, the insulation cavity can be formed solely by the insulation shell. This results in a simple and convenient production and manufacturing process.

[0017] In one optional embodiment, the insulation shell is provided with a filling hole for filling the energy storage medium into the insulation cavity.

[0018] Beneficial effects: By setting filling holes on the insulation shell, it is easy to fill the insulation cavity with energy storage medium, or to add or replace the energy storage medium during subsequent use, which facilitates operation.

[0019] In one alternative embodiment, the filling hole is located at the top of the insulation shell.

[0020] Beneficial effect: By setting the filling hole at the top of the insulation shell, the insulation device is placed in its natural state with the filling hole at the top of the insulation shell, which can prevent the energy storage medium from leaking out through the filling hole.

[0021] In one alternative embodiment, the insulation device includes a cover that is detachably connected to the filling hole.

[0022] Beneficial effects: By detachably connecting the cap at the filling hole, the cap can be opened when it is necessary to fill the insulation cavity with energy storage medium. The cap will not affect the filling of the energy storage medium. After the energy storage medium is filled, the cap can be connected to the filling hole to seal the filling hole and prevent the energy storage medium from leaking out, so as to ensure the heat absorption and release effect.

[0023] In one alternative embodiment, the cap is an elastic element;

[0024] And / or, the cap is interference-fitted with the filling hole;

[0025] And / or, the dimensions at both ends of the cap are larger than the dimensions of the filling hole.

[0026] Beneficial effects: By setting the cap as an elastic element, the elasticity of the cap can be used to assemble it into the filling hole, making it easy for the cap to be connected to the filling hole; by using an interference fit between the cap and the filling hole, the connection between the two can be achieved by relying on the structure of the cap and the filling hole themselves, without the need for additional fixed connection structures, making the structure relatively simple; by setting the dimensions of both ends of the cap to be larger than the dimensions of the filling hole, the cap can be prevented from slipping off the filling hole, improving assembly reliability.

[0027] In one optional embodiment, the outer surface of the insulation shell is provided with a radiation coating;

[0028] And / or, the insulation shell is a glass shell;

[0029] And / or, the heat-insulating shell is disposed in close contact with the outer pot.

[0030] Beneficial effects: Since the heat preservation shell is located on the outside of the outer pot, and a radiant coating is applied to its outer surface, the coating helps the energy storage medium dissipate the absorbed heat to the outer pot when the rice cooker is powered off. This heat is then transferred to the food inside the inner pot, improving the heat preservation effect. Furthermore, the glass shell enhances the thermal conductivity of the heat preservation shell, facilitating heat transfer. Finally, the close fit of the heat preservation shell to the outer pot further facilitates heat transfer and improves the overall heat transfer efficiency.

[0031] In one alternative embodiment, the heat preservation device includes a heating device for heating the energy storage medium in a cooking state.

[0032] Beneficial effects: By setting up a heating device, when the rice cooker is in cooking mode, the energy storage medium can absorb heat from the outer pot as well as heat from the heating device, increasing the heat absorption of the energy storage medium. As a result, when the rice cooker is powered off, the energy storage medium can release more heat, thereby extending the heat preservation time of the heat preservation device in the power-off state and improving the heat preservation effect.

[0033] In one optional embodiment, the base is provided with a first fixing member, the support ring is provided with a second fixing member, the first fixing member and the second fixing member are fixedly connected, and the heat preservation device is clamped between the first fixing member and the second fixing member.

[0034] Beneficial effects: By setting a first fixing member on the base and a second fixing member on the support ring, the first and second fixing members are fixedly connected, while the heat preservation device is clamped and fixed between the first and second fixing members. This facilitates assembly and improves assembly reliability. Furthermore, since the base and support ring already need to be fixedly connected by the first and second fixing members, clamping and fixing the heat preservation device between them eliminates the need for a separate fixing structure, thus simplifying the overall structure of the rice cooker.

[0035] In one alternative embodiment, the first and second fasteners are screw posts.

[0036] In one optional embodiment, the support ring includes an inner ring and an outer ring, the inner ring is connected to the inner side of the outer ring, the inner pot is provided inside the inner ring, and the second fixing member is disposed between the inner ring and the outer ring;

[0037] The first fixing member includes a head and a rod portion disposed above the head;

[0038] The inner ring's sidewall, the second fixing member's sidewall, and the first fixing member form an accommodating space. The heat-insulating device is disposed within the accommodating space, and the heat-insulating device abuts against the inner ring's sidewall, the second fixing member's sidewall, the upper surface of the head, and the rod's sidewall.

[0039] Beneficial effects: By placing the insulation device within the accommodating compartment enclosed by the inner ring side wall of the support ring, the second fixing member side wall, and the first fixing member, and with the insulation device abutting against the inner ring side wall, the second fixing member side wall, the upper surface of the head of the first fixing member, and the rod side wall, the first and second fixing members can fix the support ring and the base while the support ring and the base can further support the insulation device, improving assembly reliability, preventing the insulation device from shaking, ensuring the heat absorption and release stability of the energy storage medium inside the insulation device, and further improving the heat utilization rate.

[0040] In one alternative embodiment, the energy storage medium is water or a medium with a specific heat capacity greater than that of water.

[0041] Beneficial effects: Generally, the specific heat capacity of water is 4.2 × 10⁻⁶. 3 J / (kg·℃), usually a medium with a specific heat capacity greater than or equal to that of water is a high specific heat capacity medium. By setting the energy storage medium to water, or a medium with a specific heat capacity greater than that of water, the energy storage medium has a strong ability to absorb and release heat, which helps to improve energy utilization.

[0042] Secondly, this utility model provides a rice cooker, comprising:

[0043] The aforementioned pot body components;

[0044] The cover is located above the support ring.

[0045] Beneficial effects: Since the rice cooker includes the aforementioned cooker body components, it has the same technical effects as the aforementioned cooker body components, and will not be described in detail here. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a first-view cross-sectional view of a pot body assembly according to an embodiment of the present utility model;

[0048] Figure 2 This is a cross-sectional view from a second perspective of a pot body assembly according to an embodiment of the present utility model;

[0049] Figure 3 This is a partial structural diagram of the support ring;

[0050] Figure 4 This is a schematic diagram of the inner pot's structure;

[0051] Figure 5 This is a partial structural diagram of the base;

[0052] Figure 6 This is a schematic diagram of the outer pot structure;

[0053] Figure 7 This is a cross-sectional view of the insulation device;

[0054] Figure 8 This is a cross-sectional view of the cap.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Support ring; 101. Inner ring; 102. Outer ring;

[0057] 2. Inner pot;

[0058] 3. Base;

[0059] 4. Outer pot;

[0060] 5. Insulation device; 501. Insulation shell; 5011. Insulation cavity; 5012. Filling hole; 502. Cover; 503. Radiation coating;

[0061] 6. First fixing component; 601. Head; 602. Rod;

[0062] 7. Second fastener;

[0063] 8. Heating plate. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0065] An electric rice cooker, also known as a rice pot, 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.

[0066] Currently, rice cookers on the market automatically enter a keep-warm stage after cooking rice, maintaining this temperature through continuous electric heating. During cooking, most of the heat is transferred to the inner pot, heating the food inside. A small portion of heat is lost through the outer pot, resulting in low energy efficiency and energy waste. Furthermore, when the rice cooker is placed on a table without power, meaning it's unpowered, the rice cools down quickly due to the lack of continuous heating, failing to maintain a proper temperature. Consequently, the rice may not be at the ideal temperature when consumed.

[0067] Existing rice cookers use insulation cotton to reduce energy radiation damage, but in actual use, even with the addition of insulation cotton, the rice cooker's heat preservation effect is not significantly improved, and the rice will still cool down quickly after the power is turned off.

[0068] To solve this technical problem, this utility model proposes an electric rice cooker.

[0069] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0070] According to an embodiment of the present invention, in a first aspect, a rice cooker body assembly is provided for use in a rice cooker, the rice cooker body assembly comprising:

[0071] Support ring 1;

[0072] Inner pot 2 is located inside the support ring 1;

[0073] Base 3 is connected to the lower part of support ring 1;

[0074] The heat preservation device 5 is located on the outside of the inner pot 2. The heat preservation device 5 is located between the support ring 1 and the base 3. The heat preservation device 5 has a heat preservation cavity 5011 inside. The heat preservation cavity 5011 has an energy storage medium inside. The energy storage medium is used to absorb heat when the rice cooker is in the cooking state and to release heat when the rice cooker is in the power-off state.

[0075] By setting a heat preservation device 5 on the outside of the inner pot 2, and placing the heat preservation device 5 between the support ring 1 and the base 3, it is convenient to assemble the heat preservation device 5 and improve the assembly reliability. At the same time, since the heat preservation cavity 5011 of the heat preservation device 5 is equipped with an energy storage medium, the energy storage medium can absorb heat when the rice cooker is in the cooking state and release heat when the rice cooker is in the power-off state. In this way, when the rice cooker is in the cooking state, the energy storage medium can absorb and utilize the heat emitted by the outer pot 4 during the cooking process, and when the rice cooker is in the power-off state, the absorbed heat can be transferred to the inner pot 2 through the outer pot 4, thereby keeping the food in the inner pot 2 warm, reducing heat preservation energy consumption, improving energy utilization efficiency, and enabling the rice cooker to maintain a long-term heat preservation effect even when it is moved to the dining table after a power outage, thus improving the user experience.

[0076] like Figure 1 As shown, the pot body assembly includes:

[0077] The outer pot 4 is located outside the inner pot 2, and the outer pot 4 is equipped with a heat preservation device 5.

[0078] By placing the heat preservation device 5 on the outside of the outer pot 4, the space on the outside of the outer pot 4 can be used in a reasonable way, avoiding the problem of narrow space and inconvenience in assembling the heat preservation device 5 when it is placed between the inner pot 2 and the outer pot 4. At the same time, placing the heat preservation device 5 on the outside of the outer pot 4 does not require any modification to the existing structure of the rice cooker.

[0079] As an alternative implementation, the heat preservation device 5 can be placed between the outer pot 4 and the inner pot 2; or the heat preservation device 5 can be used directly as the outer pot of the rice cooker, without the outer pot 4.

[0080] like Figure 7 As shown, the heat preservation device 5 includes a heat preservation shell 501, which surrounds a heat preservation cavity 5011.

[0081] By configuring the heat preservation device 5 to include a heat preservation shell 501, which surrounds a heat preservation cavity 5011, the formation of the heat preservation cavity 5011 can be achieved solely by the heat preservation shell 501, resulting in a simple and convenient production and manufacturing process.

[0082] Specifically, the heat insulation shell 501 itself is a closed structure. The heat insulation shell 501 includes cavity walls in four directions: up, down, left, and right. The cavity walls in the left and right directions are arranged in a ring shape, and the cavity walls in the up and down directions are arranged in a ring shape. They are respectively connected to the upper and lower sides of the cavity walls in the left and right directions. The left and right cavity walls and the upper and lower cavity walls cooperate to form a heat insulation cavity 5011. With this arrangement, the energy storage medium in the heat insulation cavity 5011 is separated from the outer pot 4 by the cavity walls of the heat insulation shell 501.

[0083] Looking at the rice cooker from the inside out, the left cavity wall is the outer cavity wall and the right cavity wall is the inner cavity wall. Both the left and right cavity walls are arranged in a ring shape. The outer pot 4 and the inner pot 2 are located in the ring space enclosed by the inner cavity wall.

[0084] Of course, in other embodiments, the insulation shell 501 itself may be a non-enclosed structure. For example, the insulation shell 501 may have an opening on the side near the outer pot 4, and the opening may be matched with the position of the outer pot 4. The outer pot 4 may be used to seal the opening. That is, the insulation shell 501 and the outer pot 4 together form an insulation cavity 5011. This arrangement will allow the energy storage medium in the insulation cavity 5011 to directly contact the outer pot 4, resulting in better heat absorption and heat dissipation effects.

[0085] In one embodiment, the heat insulation shell 501 is provided with a filling hole 5012, which is used to fill the heat insulation cavity 5011 with an energy storage medium.

[0086] By providing a filling hole 5012 on the insulation shell 501, it is convenient to fill the insulation cavity 5011 with energy storage medium, or to add or replace the energy storage medium during subsequent use, which is convenient for operation.

[0087] like Figure 7 As shown, the filling hole 5012 is located at the top of the insulation shell 501. By placing the filling hole 5012 at the top of the insulation shell 501, the insulation device 5, in its natural placement state, has the filling hole 5012 positioned at the very top of the insulation shell 501, thus preventing the energy storage medium from leaking out through the filling hole 5012. As an alternative implementation, the filling hole 5012 may also be located at other positions on the insulation shell 501; no further restrictions are imposed here.

[0088] Specifically, there is one filling hole 5012. As an alternative implementation, there may be two or more filling holes 5012.

[0089] like Figure 8 As shown, the heat preservation device 5 includes a cover 502, which is detachably connected to the filling hole 5012.

[0090] By detachably connecting the cover 502 to the filling hole 5012, the cover 502 can be opened when it is necessary to fill the energy storage medium into the insulation cavity 5011. The cover 502 will not affect the filling of the energy storage medium. After the energy storage medium is filled, the cover 502 can be connected to the filling hole 5012 to seal the filling hole 5012 and prevent the energy storage medium from leaking out, so as to ensure the heat absorption and release effect.

[0091] Specifically, the number of caps 502 and filling holes 5012 is the same, with one of each. Of course, in other embodiments, if multiple filling holes 5012 are provided, multiple caps 502 can also be provided accordingly, with one cap 502 and one filling hole 5012 corresponding to each other.

[0092] As an alternative implementation, the cover 502 of the heat preservation device 5 can be integrally formed at the filling hole 5012. For example, the heat preservation shell 501 can be produced first, and the filling hole 5012 can be machined on it. The energy storage medium is filled into the heat preservation cavity 5011 through the filling hole 5012. After the energy storage medium is filled, the cover 502 can be integrally formed at the filling hole 5012 through a process.

[0093] In one embodiment, the cap 502 is an elastic element. Specifically, the cap 502 is a rubber stopper. By making the cap 502 an elastic element, its elasticity can be utilized to fit into the filling hole 5012, facilitating the connection of the cap 502 to the filling hole 5012. As an alternative implementation, the cap 502 may also be an elastic element made of other materials; or, the cap 502 may be a non-elastic element.

[0094] In one embodiment, the cap 502 and the filling hole 5012 are interference-fitted. By interference-fitting the cap 502 and the filling hole 5012, the connection between them is achieved solely by their own structures, eliminating the need for additional fixing structures and resulting in a simpler structure. Alternatively, the cap 502 and the filling hole 5012 can be fixedly connected in other ways, such as by providing a snap-fit ​​on the cap 502 and a groove on the filling hole 5012 for engaging with the snap-fit.

[0095] like Figure 1 As shown, the dimensions at both ends of the cap 502 are larger than the dimensions of the filling hole 5012. That is... Figure 1 In the middle, along the horizontal direction, the size of the lower end of the cap 502 is larger than the size of the filling hole 5012, and the size of the upper end of the cap 502 is larger than the size of the filling hole 5012.

[0096] By setting the dimensions of both ends of the cap 502 to be larger than the dimensions of the filling hole 5012, it is possible to prevent the cap 502 from slipping off the filling hole 5012 and improve assembly reliability.

[0097] As an alternative implementation, the end dimension of the cap 502 may be smaller than the dimension of the filling hole 5012, and the cap 502 may be fixed to the filling hole 5012 by an additional fixing structure; or the end dimension of the cap 502 may be equal to the dimension of the filling hole 5012.

[0098] See Figure 8 A detailed sectional view of the middle cap 502, combined with... Figure 1 It can be seen that, with the filling hole 5012 as the boundary, the cap 502 is divided into one end located inside the insulation cavity 5011, that is... Figure 8 The lower end of the cavity and the end located outside the insulation cavity 5011, i.e. Figure 8 The upper end of the cover 502 is connected to the bottom and lower end by an inclined edge, and the size of the cover 502 at the position corresponding to the filling hole 5012 is the minimum size of the cover 502, which makes the cover 502 easy to assemble with the filling hole 5012 while having an anti-loosening function.

[0099] During the actual assembly, the energy storage medium can be filled into the insulation cavity 5011 through the filling hole 5012. After filling, the filling hole 5012 is sealed with a rubber stopper. The rubber stopper and the filling hole 5012 are sealed by interference fit, which is simple and convenient.

[0100] like Figure 7 As shown, the outer surface of the heat-insulating shell 501 is provided with a radiation coating 503. Since the heat-insulating shell 501 is located outside the outer pot 4, the outer pot 4 and the energy storage medium of the heat-insulating cavity 5011 are separated by the cavity wall of the heat-insulating shell 501. By providing a radiation coating 503 on the outer surface of the heat-insulating shell 501, when the rice cooker is in a power-off state, the radiation coating 503 can help the energy storage medium dissipate the absorbed heat to the outer pot 4, and then transfer the heat to the food in the inner pot 2, thereby improving the heat preservation effect of the food in the inner pot 2.

[0101] Specifically, the radiation coating 503 is a graphene coating. As an alternative implementation, other coatings with radiation properties capable of far-infrared radiation, such as silicon carbide coatings, may also be used.

[0102] The insulation shell 501 is a glass shell. By making the insulation shell 501 a glass shell, the thermal conductivity of the insulation shell 501 can be improved, facilitating heat transfer. As an alternative implementation, the insulation shell 501 can also be made of other thermally conductive materials, such as aluminum alloy.

[0103] The heat-insulating shell 501 is positioned close to the outer pot 4. By positioning the heat-insulating shell 501 close to the outer pot 4, heat transfer can be facilitated and the heat transfer effect can be improved. As an alternative implementation, the heat-insulating shell 501 and the outer pot 4 can also be positioned with a gap between them.

[0104] In one embodiment, the heat preservation device includes a heating device for heating the energy storage medium in a cooking state.

[0105] By incorporating a heating device, when the rice cooker is in cooking mode, the energy storage medium absorbs heat not only from the outer pot but also from the heating device, increasing its heat absorption capacity. Consequently, when the rice cooker is powered off, the energy storage medium can release more heat, thus extending the heat preservation time of the heat preservation device in the power-off state and improving the heat preservation effect.

[0106] Of course, in other embodiments, the heat preservation device may not include a heating device.

[0107] The specific location of the heating device is not limited. For example, placing the heating device inside the insulation shell 501 can improve the heating effect on the energy storage medium. Alternatively, the heating device can be fixed to the outer wall of the insulation shell.

[0108] When the heating device is located inside the insulation housing 501, if the heating device is powered by a circuit, the circuit can be connected to the external circuit through the filling hole 5012, and the filling hole can be sealed with a rubber plug. Alternatively, mounting holes can be provided at other locations in the insulation housing 501, with the connecting wires of the heating device passing through the mounting holes, and a seal placed between the mounting holes and the connecting wires. If the heating device is powered by its own battery, there is no need to provide a separate wiring lead-out device.

[0109] The specific form of the heating device is not limited; for example, the heating device can be a heating tube, a heating wire, or other heating devices.

[0110] In one embodiment, the base 3 is provided with a first fixing member 6, the support ring 1 is provided with a second fixing member 7, the first fixing member 6 and the second fixing member 7 are fixedly connected, and the heat preservation device 5 is clamped between the first fixing member 6 and the second fixing member 7.

[0111] By setting a first fixing member 6 on the base 3 and a second fixing member 7 on the support ring 1, the first fixing member 6 and the second fixing member 7 are fixedly connected, while the heat preservation device 5 is clamped and fixed between the first fixing member 6 and the second fixing member 7. This facilitates assembly and improves assembly reliability. Furthermore, since the base 3 and the support ring 1 already need to be fixedly connected by the first fixing member 6 and the second fixing member 7, clamping and fixing the heat preservation device 5 between the first fixing member 6 and the second fixing member 7 eliminates the need for a separate fixing structure for the heat preservation device 5, thus simplifying the overall structure of the rice cooker.

[0112] like Figure 5 As shown, along the circumferential direction, the base 3 is provided with four first fixing members 6, and the support ring 1 is provided with four second fixing members 7 corresponding to each other, so that the base 3 and the support ring 1 are firmly fixed. As an alternative implementation, the specific number of the first fixing members 6 on the base 3 and the second fixing members 7 on the support ring 1 is not limited; or, the first fixing members 6 on the base 3 and the second fixing members 7 on the support ring 1 are not provided in a one-to-one correspondence.

[0113] There are many specific forms for the first fixing member 6 and the second fixing member 7. In one embodiment, the first fixing member 6 and the second fixing member 7 are screw posts, and the two corresponding screw posts are fixedly connected by screws. As an alternative implementation, the first fixing member 6 and the second fixing member 7 may be a protrusion and a groove that cooperate with each other, and the corresponding protrusion and groove are then fixedly connected by screws or by snap-fit.

[0114] like Figure 2 and Figure 3As shown, the support ring 1 includes an inner ring 101 and an outer ring 102. The inner ring 101 is connected to the inner side of the outer ring 102. An inner pot 2 is provided inside the inner ring 101. The second fixing member 7 is provided between the inner ring 101 and the outer ring 102.

[0115] The first fixing member 6 includes a head 601 and a rod portion 602 disposed above the head 601;

[0116] The side wall of the inner ring 101, the side wall of the second fixing member 7, and the first fixing member 6 form an accommodating space. The heat preservation device 5 is located in the accommodating space and abuts against the side wall of the inner ring 101, the side wall of the second fixing member 7, the upper surface of the head 601, and the side wall of the rod 602.

[0117] By placing the insulation device 5 within the accommodating compartment enclosed by the inner ring 101 of the support ring 1, the side wall of the second fixing member 7, and the first fixing member 6, and by having the insulation device 5 abut against the side wall of the inner ring 101, the side wall of the second fixing member 7, the upper surface of the head 601 of the first fixing member 6, and the side wall of the rod 602, the first fixing member 6 and the second fixing member 7 fix the support ring 1 and the base 3, while the support ring 1 and the base 3 further support the insulation device. This improves assembly reliability, prevents the insulation device from shaking, ensures the heat absorption and release stability of the energy storage medium inside the insulation device, and further improves the heat utilization rate.

[0118] like Figure 2 As shown, the upper side of the insulation shell 501 abuts against the side wall of the inner ring 101, the side wall of the insulation shell 501 abuts against the side wall of the rod portion 602 of the first fixing member 6 and the side wall of the second fixing member 7, and the lower side of the insulation shell 501 abuts against the upper surface of the first fixing member 6.

[0119] During assembly, the insulation device 5 can be placed on the four screw posts of the base 3 and supported by the upper surface of the head 601 of the four screw posts. It is then positioned and centered by the four screw posts of the support ring 1. After the screw posts of the support ring 1 and the base 3 are fixed firmly with screws, the bottom of the side wall of the inner ring 101 of the support ring 1 will press the insulation device 5, thereby clamping the insulation device 5 between the support ring 1 and the base 3.

[0120] In one embodiment, the energy storage medium is water or a medium with a specific heat capacity greater than that of water.

[0121] Generally, the specific heat capacity of water is 4.2 × 10⁻⁶. 3 J / (kg·℃), a medium with a specific heat capacity greater than or equal to that of water is usually considered a high specific heat capacity medium. By setting the energy storage medium to water, or a medium with a specific heat capacity greater than that of water, the energy storage medium has a stronger ability to absorb and release heat, which helps to improve energy utilization.

[0122] Specifically, the energy storage medium is water and paraffin. As an alternative implementation, the energy storage medium can also be other media with a high specific heat capacity.

[0123] like Figure 1 and Figure 2 As shown, the rice cooker includes a heating plate 8, which is located between the inner pot 2 and the outer pot 4.

[0124] When the rice cooker is in cooking mode, the heating plate 8 heats up, and most of the heat is transferred to the inner pot 2 and a small part of the heat is transferred to the outer pot 4. Since the inner pot 2 and the outer pot 4 are basically in contact, the heat from the inner pot 2 will also be transferred to the outer pot 4. However, the heat from the outer pot 4 is useless, as the heat will dissipate outwards.

[0125] Compared to related technologies where the outer pot 4 dissipates heat after being heated, resulting in energy waste, the rice cooker of this invention transfers the heat from the outer pot 4 to the heat preservation device 5. The heat preservation device 5 utilizes the heat transferred from the outer pot 4, absorbing and storing the heat through water and paraffin materials with high specific heat capacity. When the rice cooker finishes cooking and the power is cut off, the temperature of the outer pot 4 drops. The energy from the heat preservation device 5 radiates heat to the outer pot 4 through the graphene coating, keeping the temperature of the food inside the inner pot 2 stable and preventing it from dropping. This achieves long-term heat preservation of the rice while reducing energy consumption for heat preservation.

[0126] According to an embodiment of the present invention, in a second aspect, a rice cooker is provided, comprising:

[0127] The aforementioned pot body components;

[0128] The cover is located above the support ring 1.

[0129] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A rice cooker body assembly for use in a rice cooker, characterized in that, The cook body assembly includes: Support ring (1); The inner pot (2) is located on the inner side of the support ring (1); The base (3) is connected to the lower part of the support ring (1); A heat preservation device (5) is provided on the outside of the inner pot (2). The heat preservation device (5) is located between the support ring (1) and the base (3). The heat preservation device (5) is provided with a heat preservation cavity (5011). The heat preservation cavity (5011) is provided with an energy storage medium. The energy storage medium is used to absorb heat when the rice cooker is in the cooking state and to release heat when the rice cooker is in the power-off state.

2. The pot body assembly according to claim 1, characterized in that, The cook body assembly includes: An outer pot (4) is located on the outside of the inner pot (2), and the heat preservation device (5) is provided on the outside of the outer pot (4).

3. The pot body assembly according to claim 2, characterized in that, The heat preservation device (5) includes a heat preservation shell (501), which surrounds the heat preservation cavity (5011).

4. The pot body assembly according to claim 3, characterized in that, The heat-insulating shell (501) is provided with a filling hole (5012), which is used to fill the heat-insulating cavity (5011) with the energy storage medium.

5. The pot body assembly according to claim 4, characterized in that, The filling hole (5012) is located on the top of the thermal insulation shell (501).

6. The pot body assembly according to claim 4, characterized in that, The heat preservation device (5) includes a cover (502), which is detachably connected to the filling hole (5012).

7. The pot body assembly according to claim 6, characterized in that, The cover (502) is an elastic element; And / or, the cap (502) is interference-fitted with the filling hole (5012); And / or, the dimensions at both ends of the cap (502) are larger than the dimensions of the filling hole (5012).

8. The pot body assembly according to claim 3, characterized in that, The outer surface of the thermal insulation shell (501) is provided with a radiation coating (503); And / or, the insulation shell (501) is a glass shell; And / or, the heat-insulating shell (501) is disposed in close contact with the outer pot (4).

9. The pot body assembly according to any one of claims 1-8, characterized in that, The heat preservation device includes a heating device, which is used to heat the energy storage medium in the cooking state.

10. The pot body assembly according to any one of claims 1-8, characterized in that, The base (3) is provided with a first fixing member (6), the support ring (1) is provided with a second fixing member (7), the first fixing member (6) and the second fixing member (7) are fixedly connected, and the heat preservation device (5) is clamped between the first fixing member (6) and the second fixing member (7).

11. The pot body assembly according to claim 10, characterized in that, The first fixing member (6) and the second fixing member (7) are screw posts.

12. The pot body assembly according to claim 11, characterized in that, The support ring (1) includes an inner ring (101) and an outer ring (102). The inner ring (101) is connected to the inner side of the outer ring (102). The inner pot (2) is provided inside the inner ring (101). The second fixing member (7) is provided between the inner ring (101) and the outer ring (102). The first fixing member (6) includes a head (601) and a rod (602) disposed above the head (601); The inner ring (101) sidewall, the second fixing member (7) sidewall and the first fixing member (6) form an accommodating space, the heat preservation device is disposed in the accommodating space, and the heat preservation device abuts against the inner ring (101) sidewall, the second fixing member (7) sidewall, the upper surface of the head (601) and the sidewall of the rod (602).

13. The pot body assembly according to any one of claims 1-8 and 11-12, characterized in that, The energy storage medium is water or a medium with a specific heat capacity greater than that of water.

14. An electric rice cooker, characterized in that, include: The pot body assembly according to any one of claims 1-13; The cover is located above the support ring.

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