A rice cooker lid
By designing the receiving edge and liquid guiding structure of the rice cooker lid, the condensate can be directionally collected and discharged, solving the problem of condensate dripping from the rice cooker lid during the heat preservation stage, thus improving the quality of the rice and the heat preservation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN LEMI ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-31
AI Technical Summary
The existing rice cooker lid cannot effectively direct the condensation during the keep-warm stage, resulting in localized dampness, discoloration, and uneven texture of the rice.
A rice cooker lid was designed, including an outer lid, an inner lid, a receiving edge, a seepage cavity, and a liquid guide port. By utilizing flexible materials and gravity, the condensate is directed to collect and drain, preventing it from dripping onto the surface of the rice.
It effectively prevents condensation from dripping onto the surface of the rice, preventing localized dampness and discoloration, and improving the taste and heat retention of the rice.
Smart Images
Figure CN224572593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice cookers, and more specifically, to a rice cooker lid. Background Technology
[0002] In existing rice cooker lids, during the keep-warm stage, the continuously generated condensation inside the pot causes water droplets to form on the inner lid surface. These droplets drip into the rice, leading to localized dampness and discoloration. To address this issue, a common design is to incorporate regularly arranged micro-protrusions (such as honeycomb or prismatic protrusions) on the inner lid surface. The aim is to increase surface roughness, allowing condensation to adhere more easily to the tops of the protrusions and delaying direct dripping. While this design reduces the probability of liquid water dripping directly onto the rice surface, it still has significant drawbacks in practical use. Firstly, when the accumulated condensation exceeds the bearing capacity of the protrusions, excess water droplets will still slide off through the gaps or edges. Secondly, the protrusions cannot alter the surface tension of the liquid; under gravity, condensation in the central area can still easily form larger droplets and fall back into the pot. This results in the rice remaining damp even when not being heated, causing not only a darker surface color (such as the appearance of yellowish-brown spots) but also potentially affecting taste and heat retention due to uneven moisture distribution.
[0003] To solve the above problems, there is an urgent need for a new type of rice cooker lid structure that can actively guide the condensed liquid to converge towards the edge of the lid during non-high-temperature cooking stages (such as the heat preservation process), so as to prevent liquid water from accumulating in the middle area and dripping directly onto the surface of the rice. Utility Model Content
[0004] The present invention aims to overcome at least one of the defects of the prior art and provide a rice cooker lid to solve the problem of insufficient water collection capacity of existing rice cooker lids.
[0005] The technical solution adopted by this utility model is a rice cooker lid, including: an outer lid structure and an inner lid disposed on the inner side of the outer lid structure. The inner lid is provided with a receiving edge surrounding the inner lid. The receiving edge is connected to the edge of the inner lid, and a seepage cavity is formed between the receiving edge and the inner lid. A liquid guide port communicating with the seepage cavity is provided on the side near the connecting side of the outer lid structure. The outer lid is made of high-temperature resistant plastic or metal, insulating the inner lid and the pot body with heat to prevent users from being burned by high-temperature steam when opening the lid, while also protecting the inner lid from external impacts or dust contamination. The inner lid is used to condense water vapor and prevent food from overflowing from the pot. The receiving cavity is used to close during cooking and open during the heat preservation stage. The receiving cavity is used to collect condensate flowing back from the inner lid, preventing condensate from flowing back into the pot and causing the rice to become damp and discolored. The drain outlet is used to drain condensate, preventing excessive condensate in the receiving cavity.
[0006] To achieve different functions during the cooking and heat preservation stages, the receiving edge is made of a flexible material; the outer edge of the receiving edge is fixedly connected to the inner cover, and the inner edge of the receiving edge is suspended to form the infiltration port of the infiltration cavity.
[0007] The flexible material of the receiving edge and the inner edge are suspended, allowing the receiving edge to rise under the action of water vapor and fall under the action of gravity, thereby opening and closing the seepage into the cavity.
[0008] In order to catch the condensation droplets flowing back from the inner cover, the bottom of the infiltration cavity is located in the same horizontal plane; the height of the infiltration inlet is 0.1 mm to 3 mm.
[0009] The infiltration inlet size of 0.1mm to 3mm increases the space of the infiltration cavity, allowing the cavity to hold more condensate.
[0010] In order to form an infiltration cavity, the surface of the receiving edge is provided with a recessed first groove, which forms the infiltration cavity and leaves a gap between it and the inner edge of the receiving edge.
[0011] The gap between the first groove and the inner edge of the receiving edge is to prevent condensation from dripping into the pot.
[0012] In order to allow condensate to flow back into the pot during the cooking stage or to flow back into the infiltration cavity during the heat preservation stage, the inner cover is convex and has an inclined surface on the inner side.
[0013] The raised inner cover allows condensation droplets to flow along the inclined surface to the edge of the inner cover.
[0014] To improve overall stability, enhance structural strength, and increase water capacity, a rigid annular frame and a flexible receiving edge are sequentially provided below the receiving edge. The annular frame is connected to the inner cover, the inner edge of the receiving edge is fixedly connected to the annular frame, and the outer edge of the receiving edge is suspended.
[0015] The ring frame supports the receiving edge, preventing deformation and improving stability; the receiving edge catches the condensate flowing down from the receiving edge. The inner edge of the receiving edge is fixed to the ring frame, while the outer edge is suspended, allowing the space between the receiving edge and the ring frame to be adjusted, thus catching more condensate.
[0016] To prevent excessive condensation from seeping into the cavity, a liquid-guiding cavity is formed between the receiving edge and the annular frame, and the seepage cavity is connected to the liquid-guiding cavity.
[0017] The liquid guiding cavity is used to collect the condensate flowing down from the cavity, preventing excessive condensate from dripping into the pot.
[0018] In order to drain the condensate in the permeation cavity and the liquid guiding cavity, the liquid guiding port is provided on the side of the annular frame near the liquid guiding cavity, and the permeation cavity is connected to the liquid guiding port through the liquid guiding cavity.
[0019] The liquid outlet is used to drain water from the liquid inlet and the seepage inlet, so as to prevent excessive condensate in the seepage inlet from dripping into the pot.
[0020] In order to guide the condensate to spread along the annular frame, a second groove is provided on the side of the annular frame near the liquid guiding cavity, and the second groove is in communication with the liquid guiding cavity.
[0021] The second groove on the annular frame is used to guide the condensate to the periphery and increases the capacity of the liquid guiding cavity.
[0022] To connect the infiltration cavity and the liquid guiding cavity, the receiving edge is provided with a number of evenly distributed liquid guiding holes, and the annular skeleton is provided with a connecting channel communicating with the liquid guiding holes. The infiltration cavity is connected to the liquid guiding cavity through the liquid guiding holes and the connecting channel.
[0023] The liquid guiding hole is used to drain the condensate that has seeped into the cavity, and the connecting channel is used to guide the condensate in the liquid guiding hole into the liquid guiding cavity.
[0024] Compared with the prior art, the beneficial effects of this utility model are mainly reflected in the following aspects: 1. Prevents food spillage and collects condensation. It can condense water vapor and allow it to flow back during cooking and heat preservation; and it can prevent boiling substances such as foam and rice soup from splashing directly out of the pot, reducing cleaning work. During the cooking stage, as a large amount of water vapor rises, the receiving edge adheres tightly to the inner lid. At this time, the infiltration cavity is in a closed state, and the water vapor condenses on the inner lid and flows back into the pot. The food is also blocked by the inner lid and flows back into the pot along the inner lid and the receiving edge. During the heat preservation stage, the water vapor decreases, and the receiving edge falls back to its initial position under the action of gravity. At this time, the infiltration cavity is in a closed state, and the water vapor condenses on the inner lid and flows along the inner lid to the edge of the inner lid. The condensed water droplets flow into the infiltration cavity, and the condensed water flows out through the liquid guide port to prevent excessive water accumulation in the infiltration cavity from dripping back into the pot.
[0025] 2. Avoid excessive condensation in the seepage cavity. The receiving edge is made of soft material, and the inner edge of the receiving edge is suspended. There is a gap between the first groove on the receiving edge and the inner edge of the receiving edge. In addition, the infiltration cavity and the liquid guiding cavity are connected through the liquid guiding hole and the connecting channel. The outer edge of the receiving edge is suspended, which means that the capacity of the connecting channel can be changed. The liquid guiding port is connected to the liquid guiding cavity, so that the condensate can flow into the infiltration cavity and then into the liquid guiding cavity, and then flow out through the liquid guiding port. This avoids excessive condensate in the infiltration cavity, which would cause the condensate to drip into the pot, resulting in localized dampness and discoloration of the rice. Attached Figure Description
[0026] Figure 1 This is a structural diagram of the present invention.
[0027] Figure 2 This is a side view of the inner cover of this utility model.
[0028] Figure 3 This is a structural diagram of the receiving edge of this utility model.
[0029] Figure 4 is a structural diagram of the receiving edge of this utility model.
[0030] Figure 5 This is a structural diagram of the receiving edge of this utility model.
[0031] Figure 6 is a structural diagram of the receiving edge and the ring skeleton of this utility model.
[0032] Figure 7 is a structural diagram of the receiving edge of this utility model.
[0033] Figure 8 is a structural diagram of the receiving edge of this utility model.
[0034] Figure 9 is a structural diagram of the ring skeleton of this utility model.
[0035] Figure label: Outer cap 100; Inner cap 200; Liquid inlet 600; Receiver edge 300: First groove 310, infiltration cavity 311, interval 320, liquid guiding hole 330, outer edge of the receiver edge 340, inner edge of the receiver edge 350; Receiving edge 400: liquid guiding cavity 410, inner edge of receiving edge 420, outer edge of receiving edge 430; Circular skeleton 500, second groove 510, connecting channel 520. Detailed Implementation
[0036] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0037] Example 1 like Figure 1 and Figure 5 As shown, this embodiment provides a rice cooker lid, including: an outer cover 100 structure, and an inner cover 200 disposed on the inner side of the outer cover 100 structure. The inner cover 200 is provided with a receiving edge 300 surrounding the inner cover 200. The receiving edge 300 is connected to the edge of the inner cover 200, and an infiltration cavity 311 is formed between the receiving edge 300 and the inner cover 200. A liquid guide port 600 communicating with the infiltration cavity 311 is provided on the side near the connecting side of the outer cover 100 structure.
[0038] The inner lid 200, under the action of the outer lid 100, fits tightly against the pot body, forming a sealed space. The inner lid 200 presses against the receiving edge 300, and there is a certain space between the edge of the inner lid 200 and the receiving edge 300, which is the seepage cavity 311. When the rice cooker is in the cooking stage, the receiving edge 300 and the inner lid 200 are tightly pressed together, the seepage cavity 311 is closed, and the condensate flows over the bottom of the receiving edge 300 and falls back into the pot. When the rice cooker is in the keep-warm stage, the condensate flows from the inner lid 200 to the edge of the inner lid 200 and seeps into the seepage cavity 311 from the edge of the inner lid 200. When too much condensate accumulates, the condensate flows out through the liquid guide port 600 to prevent excessive water accumulation in the seepage cavity 311 from dripping back into the pot and causing the rice to become damp and discolored.
[0039] like Figure 4 and 5 As shown, the receiving edge 300 is made of flexible material; the outer edge 340 of the receiving edge is fixedly connected to the inner cover 200, and the inner edge 350 of the receiving edge is suspended to form an infiltration port for infiltration into the cavity.
[0040] The outer edge 340 of the receiving edge is fixedly connected to the inner cover 200, which serves to seal and insulate. The flexible material of the receiving edge 300 allows the inner edge 350 of the suspended receiving edge to deform under the action of force. During the cooking stage, the upward force of water vapor is greater than the force of gravity, so the inner edge 350 of the receiving edge rises, adheres tightly to the inner cover 200, and closes the infiltration cavity 311. During the heat preservation stage, the upward force of water vapor is less than the force of gravity, so the inner edge 350 of the receiving edge falls back, and there is a gap between it and the inner cover 200, opening the infiltration cavity 311, and condensate flows into the infiltration cavity 311 through the gap.
[0041] like Figure 2 and 5 As shown, the bottom of the infiltration cavity 311 is located in the same horizontal plane; the height of the infiltration inlet is 0.1 mm to 3 mm.
[0042] The distance between the edge of the inner cover 200 and the receiving edge 300 is the infiltration inlet. The height 'a' of the infiltration inlet can vary depending on the amount of condensate collected. When there is no water in the infiltration cavity, 'a' is 0.1 mm, and the space of the infiltration cavity 311 is small. As the infiltration cavity 311 gradually fills with water, the height of the infiltration inlet slowly increases until 'a' is 3 mm, and the space of the infiltration cavity 311 gradually increases. Under the action of water tension, it can collect more condensate and prevent excessive condensate from dripping into the pot.
[0043] like Figure 3-5 As shown, the surface of the receiving edge 300 is provided with a recessed first groove 310, which forms an infiltration cavity 311 and is spaced apart from the inner edge 350 of the receiving edge.
[0044] The recessed first groove 310 forms an infiltration cavity 311. When condensed water flows back from the inner cover 200 and reaches the receiving edge 300, it enters the first groove 310. At this time, the space between the first groove 310 and the inner cover 200 is the size of the infiltration cavity 311. In addition, there is a gap 320 between the first groove 310 and the inner edge 350 of the receiving edge to prevent condensed water from flowing back into the pot along the inner edge 350 of the receiving edge. Furthermore, this gap 320 can be set such that the part near the inner edge 350 of the receiving edge is higher than the part near the first groove 310 to further prevent condensed water from dripping.
[0045] like Figure 2-3 As shown in Figure 5, the inner cover 200 is convex and forms an inclined surface on the inner side of the inner cover 200.
[0046] The inner side of the inner lid 200 is inclined, which guides the flow of condensate. Under the action of tension and gravity, the condensate gathers towards the edge of the inner lid 200, preventing condensate from dripping into the pot.
[0047] like Figure 6 and 8 As shown, a rigid annular frame 500 and a flexible receiving edge 400 are sequentially provided below the receiving edge 300. The annular frame 500 is connected to the inner cover 200, the inner edge of the receiving edge 400 is fixedly connected to the annular frame 500, and the outer edge of the receiving edge 400 is suspended.
[0048] The annular frame 500 supports and fixes the receiving edge 300, so that the edge of the inner cover 200 is fixedly connected to the outer edge 430 of the receiving edge. At the same time, the inner edge 420 of the receiving edge is fixedly connected to the annular frame 500 to prevent the receiving edge 400 from shifting. The receiving edge 400 receives the condensate flowing down from the receiving edge 300. Since the receiving edge 400 is made of flexible material, the outer edge 430 of the receiving edge can deform under the action of force. The space between the receiving edge 400 and the annular frame 500 is variable, so that the receiving edge 400 can receive more condensate, indirectly increasing the water capacity of the receiving edge 300.
[0049] like Figure 5-7 As shown, a liquid guiding cavity 410 is formed between the receiving edge 400 and the annular skeleton 500, and the infiltration cavity 311 is connected to the liquid guiding cavity 410.
[0050] The size of the liquid guiding cavity 410 varies with the distance between the receiving edge 400 and the annular frame 500. When the receiving edge 400 receives condensate, it droops under the action of gravity, and the space between the receiving edge 400 and the annular frame 500 becomes larger, that is, the liquid guiding cavity 410 becomes larger and can receive more condensate.
[0051] like Figure 5 and 7 As shown, the liquid inlet 600 is located on the side of the annular skeleton 500 near the liquid inlet cavity 410, and the liquid inlet cavity is connected to the liquid inlet 600 through the liquid inlet cavity 410.
[0052] The seepage cavity is connected to the liquid guiding cavity 410. When there is too much condensed water in the seepage cavity 311, it flows into the liquid guiding cavity 410. The condensed water in the liquid guiding cavity 410 flows along the second groove 510 of the annular skeleton 500 to the liquid guiding port 600, and is discharged to the edge of the rice cooker through the liquid guiding port 600 to prevent the condensed water from dripping into the pot.
[0053] like Figure 7 and 9 As shown, the annular skeleton 500 has a second groove 510 on the side near the liquid guiding cavity 410, and the second groove 510 is connected to the liquid guiding cavity 410.
[0054] The condensate in the liquid guiding cavity 410 spreads along the second groove 510 along the annular skeleton 500, flows into the liquid guiding port 600, and flows to the edge of the rice cooker; in addition, the second groove 510 increases the capacity of the liquid guiding cavity 410, so that the liquid guiding cavity 410 can collect more condensate from seeping into the cavity, avoiding the problem of too much condensate seeping into the cavity.
[0055] like Figure 3 , 7 As shown in Figure 9, a plurality of evenly distributed liquid guiding holes 330 are provided along the 300. The annular skeleton 500 is provided with a connecting channel 520 that communicates with the liquid guiding holes 330. The infiltration cavity communicates with the liquid guiding cavity 410 through the liquid guiding holes 330 and the connecting channel 520.
[0056] Several evenly distributed liquid guiding holes 330 can drain excess condensate that has seeped into the cavity. The connecting channels 520 and 520 on the annular skeleton 500 are aligned with the liquid guiding holes 330. The condensate flowing into the liquid guiding holes 330 flows into the liquid guiding cavity 410 through the connecting channels 520 and 520, thus avoiding the problem of excessive condensate seeping into the cavity.
[0057] Example 2 like Figure 1-2 As shown, this embodiment is a rice cooker lid, which includes an outer lid 100 and an inner lid 200. The outer lid 100 is positioned above the inner lid 200, fixing the inner lid 200 and sealing the rice cooker. The inner lid 200 is a glass lid, slightly convex. Due to the fragility of glass, only a round hole is provided in the center of the glass lid for venting. When the rice cooker is in keep-warm or cooking mode, steam rises inside the pot, touches the inner lid 200, condenses into water droplets, and slides along the inclined surface of the inner lid 200 to the edge of the inner lid 200.
[0058] like Figure 3-6 As shown, the inner lid 200 has a retaining edge 300 pressed against its edge. The outer edge 340 of the retaining edge is held in place by the edge of the inner lid 200 and fixed to the annular frame 500. The inner edge 350 of the retaining edge is suspended. Since the retaining edge 300 is made of a flexible material, the inner edge 350 of the retaining edge can float up and down. When in cooking mode, a large amount of steam is generated in the pot. The steam rises, causing the suspended inner edge 350 of the retaining edge to rise and press against the inner side of the inner lid 200. There is no gap between the retaining edge 300 and the inner lid 200. Condensed water droplets flowing from the inner lid 200 to the edge drip back into the pot through the lower surface of the retaining edge 300. Since the pot is in the cooking stage, the dripping condensed water will not cause the food to become damp or discolored. When in heat preservation mode, the amount of water vapor generated inside the pot decreases. The upward force of the water vapor on the inner edge 350 of the receiving edge is less than the weight of the receiving edge 300 itself, causing the inner edge 350 of the receiving edge to fall back. At this time, there is a small gap between the receiving edge 300 and the inner cover 200. This gap is the infiltration port for condensate to seep from the edge of the inner cover 200 into the receiving edge 300. The condensate droplets flowing from the inner cover 200 to the edge seep into the receiving edge 300 through the infiltration port and spread outwards along the first groove 310 of the receiving edge 300. The space between the first groove 310 in the receiving edge 300 and the inner side of the inner cover 200 is the infiltration cavity 311. As the infiltration cavity 311 gradually fills with condensate, the receiving edge 300 becomes heavier, the inner edge 350 of the receiving edge droops downward, and the infiltration port becomes larger. The height of the infiltration port ranges from 0.1 mm to 3 mm.
[0059] like Figure 3-9As shown, to prevent condensate on the receiving edge 300 from dripping back into the pot, the receiving edge 300 is provided with a liquid guiding hole 330 and a gap 320 between the inner edge of the receiving edge 300 and the first groove 310. The gap 320 is slightly higher than the first groove 310. The portion of the gap 320 near the inner edge 350 of the receiving edge can also be set slightly higher than the portion near the first groove 310 to further prevent condensate dripping. The condensate on the receiving edge 300 flows out from the liquid guiding hole 330 and through the connecting channel 520 provided on the annular frame 500 to the receiving edge 400 located below the annular frame 500, forming a liquid guiding cavity between the receiving edge 400 and the annular frame 500. The receiving edge 400 is also made of flexible material. The inner edge 420 of the receiving edge is fixedly connected by the annular skeleton 500, and the outer edge 430 of the receiving edge is suspended. Therefore, when condensate flows into the receiving edge 400 from the connecting channel 520, the outer edge 430 of the receiving edge gradually droops as the amount of condensate increases, expanding the volume of the liquid guiding cavity 410.
[0060] like Figure 7 and 9 As shown, in order to increase the volume of the liquid guiding cavity 410 and guide the condensate out, the annular frame 500 is provided with a second groove 510 and a liquid guiding port 600. The condensate in the liquid guiding cavity 410 spreads along the direction of the second groove 510 to the liquid guiding port 600, and flows out from the liquid guiding port 600 to the edge of the rice cooker, thus avoiding the problem of condensate dripping into the pot and causing the rice to become damp or discolored.
[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An electric rice cooker lid comprising: An outer cover structure and an inner cover disposed on the inner side of the outer cover structure, characterized in that the inner cover has a receiving edge surrounding the inner cover, the receiving edge being connected to the edge of the inner cover, and an infiltration cavity being formed between the receiving edge and the inner cover, and a liquid guide port communicating with the infiltration cavity is provided on the side near the connecting side of the outer cover structure.
2. The electric rice cooker cover according to claim 1, wherein The receiving edge is made of a flexible material; the outer edge of the receiving edge is fixedly connected to the inner cover, and the inner edge of the receiving edge is suspended to form the infiltration entrance of the infiltration cavity.
3. The electric rice cooker cover according to claim 2, wherein The bottom of the infiltration cavity is located in the same horizontal plane; the height of the infiltration inlet is 0.1 mm to 3 mm.
4. The electric rice cooker cover according to claim 1, wherein The surface of the receiving edge is provided with a recessed first groove, which forms the infiltration cavity and is spaced apart from the inner edge of the receiving edge.
5. The electric rice cooker cover according to claim 1, wherein The inner cover is convex and forms an inclined surface on the inner side of the inner cover.
6. The electric rice cooker cover according to any one of claims 1 to 5, wherein Below the receiving edge, there is a rigid annular frame and a flexible receiving edge in sequence. The annular frame is connected to the inner cover, the inner edge of the receiving edge is fixedly connected to the annular frame, and the outer edge of the receiving edge is suspended.
7. The electric rice cooker cover according to claim 6, wherein A liquid-guiding cavity is formed between the receiving edge and the annular skeleton, and the infiltration cavity is connected to the liquid-guiding cavity.
8. The electric rice cooker cover according to claim 7, wherein The liquid guide port is located on the side of the annular skeleton near the liquid guide cavity, and the infiltration cavity is connected to the liquid guide port through the liquid guide cavity.
9. A rice cooker lid according to claim 7, characterized in that, The annular skeleton has a second groove on the side near the liquid guiding cavity, and the second groove communicates with the liquid guiding cavity.
10. The electric rice cooker cover according to claim 7, wherein The receiving edge is provided with a plurality of evenly distributed liquid guiding holes, and the annular skeleton is provided with a connecting channel communicating with the liquid guiding holes. The infiltration cavity is connected to the liquid guiding cavity through the liquid guiding holes and the connecting channel.