A rice cooker lid with a gas guiding device
By installing a detachable steam guide device on the rice cooker lid, the problems of steam diffusion and condensate backflow are solved, enabling convenient cleaning and precise temperature control, thus improving user experience and cooking safety.
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 vent design of existing rice cooker lids causes steam to diffuse into the gap between the top and inner lids, making cleaning difficult, and the backflow of condensate affects the taste of the food.
A detachable air guide device is adopted, which connects the exhaust port and the air outlet. Steam is discharged through the air guide device to avoid diffusion into the gap. The air guide device is detachable for easy cleaning, and the steam flow time is extended by the shape of the air guide inlet, the sealing cavity and the baffle to cool down and defoam.
It improves the ease of cleaning the rice cooker lid, prevents steam diffusion and condensate backflow, ensures food taste, and enhances the accuracy of temperature detection and cooking safety.
Smart Images
Figure CN224572596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliances, and more specifically, to a rice cooker lid with a gas guiding device. Background Technology
[0002] An electric rice cooker is a modern cooking appliance capable of steaming, boiling, stewing, simmering, and braising, making it an essential kitchen appliance in modern households. Its convenient and efficient rice-cooking function has earned it widespread popularity. Its core components consist of an inner pot, a heating plate, and a temperature control system. The heating plate converts electrical energy into heat energy, while the temperature controller precisely monitors the temperature, ensuring that the rice enters a keep-warm state after boiling, preventing undercooked rice or burnt rice. Whether for daily meals or family gatherings, the electric rice cooker, with its time-saving and labor-saving features, has become a powerful assistant in simplifying the cooking process.
[0003] The lid of the rice cooker is connected to the body of the cooker and serves as a seal. The lid includes a top lid and an inner lid, both of which are equipped with vents. During the cooking process, the steam inside the inner pot is discharged to the outside through the vents of the inner lid and the top lid in sequence to balance the gas pressure inside the cooker, ensure safe use, and also help control the cooking temperature and ensure the taste of the food.
[0004] The vents of existing top and inner lids are usually connected through a gap between them, which acts as a steam passage. However, in this case, steam fills the gap, making it difficult to clean both the top and inner lids. This is especially true when air bubbles carrying liquids like rice paste burst within the gap, causing some fluid to accumulate in different areas, further increasing the cleaning difficulty. For lids with non-removable inner lids, there are many hard-to-clean areas, making cleaning even more challenging. Furthermore, because the gap is usually small, condensation can easily flow back into the inner pot through the vent of the inner lid, affecting the taste of the food. Utility Model Content
[0005] The present invention aims to overcome at least one defect (deficiency) of the prior art and provide a rice cooker lid with a gas guiding device, which is convenient to clean.
[0006] The technical solution adopted by this utility model is to provide a rice cooker lid with a gas guiding device. The lid includes a top cover and an inner cover connected to the inside of the top cover. The inner cover is provided with a vent hole, and the top cover is provided with a vent hole. A detachable gas guiding device is provided between the top cover and the inner cover, and the vent hole and the vent hole are connected through the gas guiding device.
[0007] In this technical solution, the vent is connected to the inner pot space of the pot body. Steam generated in the inner pot space enters the air guiding device through the vent on the inner lid, and then exits to the outside through the vent on the top lid. The air guiding device is used to guide the rising steam through the vent to the vent on the top lid. In this way, the steam will not diffuse into the entire gap space between the top lid and the inner lid, and the liquid substances such as rice carried by the foam are also temporarily stored in the air guiding device, keeping the gap space between the inner lid and the top lid clean. Users only need to clean the air guiding device, greatly improving the convenience of cleaning. In addition, the air guiding device is detachable, and the entire device can be removed for cleaning, further facilitating the user's cleaning.
[0008] Furthermore, the air guiding device includes an upper shell and a lower shell, which are detachably connected to form an air guiding cavity. The exhaust port and the air outlet are staggered and communicate with each other through the air guiding cavity.
[0009] In this technical solution, the upper shell is the shell near the top cover, and the lower shell is the shell near the inner cover. The detachable connection between the upper and lower shells allows the user to remove them for thorough cleaning of the air guide device, improving cleaning convenience and preventing residue from affecting the hygiene of cooking. The detachable connection can refer to detachment at one end or detachment at both ends.
[0010] Furthermore, one end of the upper shell is hinged to the lower shell, and the other end is fastened to the lower shell.
[0011] In this technical solution, when performing the closing operation, since one end of the upper and lower shells is connected together, it is convenient for the user to align the upper and lower shells. Moreover, opening and closing only require operating the snap-fit end, which is convenient and efficient.
[0012] Furthermore, the upper shell is provided with an air outlet, the lower shell is provided with an air inlet, the air inlet is connected to the exhaust hole, the air outlet is connected to the air outlet, and the air inlet is frustum-shaped with an upper radius smaller than the lower radius.
[0013] In this technical solution, steam is generated inside the pot, passes through the vent hole and enters the air inlet, then passes through the air guiding chamber, and exits sequentially from the air outlet and the vent hole to the outside. Preferably, the vent hole on the inner cover and the vent hole on the top cover are staggered, the air inlet of the lower shell is located on the side near the vent hole, and the air outlet of the upper shell is located on the side near the vent hole. The air inlet is frustum-shaped, which can be understood as a channel inlet with a horizontal cross-section that gradually decreases from bottom to top. That is, the opening of the air inlet facing the vent hole is larger than that of the other end, guiding the steam entering from the vent hole towards the air inlet. As the inlet radius decreases, the steam flow speed also slows down, appropriately increasing the time in the air guiding device, which is beneficial for cooling and defoaming, and helps the cooled gas to finally exit from the vent hole.
[0014] Furthermore, the cross-sectional area of the gas guiding device along the gas flow direction gradually increases from near the gas inlet to near the gas outlet.
[0015] In this technical solution, the extension direction of the gas guiding device is from the gas inlet to the gas outlet, and its cross-section refers to the area enclosed by the upper and lower shells. The gas guiding cavity gradually widens from near the gas inlet to near the gas outlet. This can be understood as the gas guiding cavity gradually widening vertically from the inlet to the outlet. The narrower cavity near the inlet facilitates foam compression and defoaming, while the wider cavity near the outlet facilitates the outflow of steam after foam breakage. Thus, while preventing foam from carrying fluid out and causing overflow, it ensures the smooth discharge of steam to the outside.
[0016] Furthermore, the lower shell has a bottom surface, which includes a connected inclined surface and a horizontal surface;
[0017] The inclined surface is located at one end near the air inlet and gradually slopes downwards;
[0018] The horizontal plane is located at one end near the gas outlet.
[0019] In this technical solution, when the foam bursts and liquid is generated, it flows downwards along the inclined surface and eventually gathers in the horizontal area. This concentrates the liquid in one area, greatly facilitating subsequent cleaning by the user. Preferably, in the direction from the air inlet to the air outlet, the length of the inclined surface is 3 to 5 times the length of the horizontal surface, and the connection between the inclined surface and the horizontal surface corresponds to the position of the air outlet.
[0020] Furthermore, a baffle is connected inside the air guiding device, and air guiding channels are provided on both sides of the baffle.
[0021] In this technical solution, the baffle in the gas guiding device is used to block part of the space from the gas guiding inlet to the gas guiding outlet, thereby increasing the flow path of the steam in the gas guiding chamber and prolonging the time the steam spends in the gas guiding chamber, which is beneficial for cooling and defoaming. The baffle can be perpendicular to or inclined to the extension direction of the gas guiding device, that is, from the gas guiding inlet to the gas guiding outlet.
[0022] Furthermore, it also includes a first sealing ring, the lower shell, the first sealing ring and the inner cover together form a sealing cavity, the sealing cavity is connected to the air guide cavity through the air guide inlet, and the exhaust hole is connected to the air guide inlet through the sealing cavity.
[0023] In this technical solution, the first sealing ring is preferably connected to the lower shell. The inlet of the sealing cavity is the vent hole of the inner cover, and the outlet is the air inlet of the lower shell. The steam generated inside the pot enters the sealing cavity through the vent hole of the inner cover, exits from the sealing cavity through the air inlet, enters the air guiding cavity, flows out of the air guiding cavity through the air guiding outlet, and finally exits from the vent hole to the outside. The sealing cavity provides an additional flow space for the gas before it enters the air guiding cavity, further extending the flow time within the air guiding device, which is beneficial for defoaming and cooling.
[0024] Furthermore, the air inlet and the exhaust port are misaligned, and a temperature detector is also provided on the lower shell, with the temperature detector corresponding to the exhaust port.
[0025] In this technical solution, since the steam cools down as it flows from the exhaust port to the air outlet, the staggered arrangement of the air inlet and exhaust port, combined with the position setting of the temperature detector, allows the steam to be measured before flowing to the air inlet after entering the exhaust port. This facilitates the temperature detector in detecting the true temperature inside the rice cooker, improves the accuracy of temperature detection, provides reliable data for the control system, and ensures precise temperature control for food cooking and the safety of the rice cooker operation.
[0026] Furthermore, a second sealing ring is provided circumferentially at the connection between the upper shell and the lower shell.
[0027] In this technical solution, the connection between the upper shell and the lower shell refers to the contact point between the upper shell and the lower shell when closed. The second sealing ring helps to maintain the airtightness of the air guide cavity, prevent steam from flowing out, keep the space between the inner cover and the top cover clean, and further facilitate cleaning for users.
[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0029] (1) This utility model, through the design of a detachable air-guiding device, prevents steam from diffusing into the entire gap space between the top cover and the inner cover. Fluid substances such as rice carried by the foam are also temporarily stored within the air-guiding device, keeping the gap space between the inner cover and the top cover clean. Users only need to clean the air-guiding device, greatly improving cleaning convenience. Furthermore, the air-guiding device is detachable, allowing the entire device to be removed for cleaning, further facilitating user cleaning.
[0030] (2) By changing the cross-sectional area of the air guiding device, this utility model can ensure that steam is smoothly discharged to the outside while avoiding foam carrying fluid out of the outside and causing overflow.
[0031] (3) By setting the shape of the gas inlet, the sealing cavity, the baffle, etc., this utility model can appropriately extend the time of steam in the gas guiding device, which is beneficial to the cooling and defoaming of steam. Attached Figure Description
[0032] Figure 1 This is an exploded view of the structure of the pot lid of this utility model.
[0033] Figure 2 This is a schematic diagram of the structure of the pot lid of this utility model.
[0034] Figure 3 This is an exploded view of the gas guiding device of this utility model.
[0035] Figure 4 This is a cross-sectional view of the air guiding device of this utility model.
[0036] Figure 5 This is a schematic diagram of the upper shell of the air guiding device of this utility model.
[0037] Figure 6 This is a schematic diagram of the temperature detector of this utility model.
[0038] Reference numerals: Top cover 100, air outlet 110, inner cover 200, exhaust port 210, air guiding device 300, upper shell 310, air guiding outlet 311, lower shell 320, air guiding inlet 321, inclined surface 322, horizontal surface 323, air guiding cavity 330, baffle 340, air guiding channel 341, first sealing ring 400, sealing cavity 410, temperature detector 500. Detailed Implementation
[0039] 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.
[0040] Example 1
[0041] refer to Figure 1 and Figure 2 This embodiment provides a rice cooker lid with a gas guiding device. The lid includes a top cover 100 and an inner cover 200 connected to the inside of the top cover 100. The inner cover 200 is provided with a vent 210, and the top cover 100 is provided with a vent 110. A detachable gas guiding device 300 is provided between the top cover 100 and the inner cover 200. The vent 210 and the vent 110 are connected through the gas guiding device 300.
[0042] In this embodiment, the vent 210 connects to the inner pot space of the pot body. Steam generated in the inner pot space enters the air guiding device 300 through the vent 210 on the inner lid 200, and then exits to the outside through the vent 110 on the top lid 100. The air guiding device 300 is used to guide the steam rising through the vent 210 to the vent 110 on the top lid 100. In this way, the steam will not diffuse into the entire gap space between the top lid 100 and the inner lid 200, and the liquid substances such as rice carried by the foam are also temporarily stored in the air guiding device 300, keeping the gap space between the inner lid 200 and the top lid 100 clean. Users only need to clean the air guiding device 300, which greatly improves the convenience of cleaning. In addition, the air guiding device 300 is detachable, and the entire device can be removed for cleaning, which further facilitates cleaning for users.
[0043] refer to Figure 2 and Figure 5 Furthermore, the air guiding device 300 includes an upper shell 310 and a lower shell 320, which are detachably connected to form an air guiding cavity 330. The exhaust port 210 and the air outlet 110 communicate through the air guiding cavity 330. A second sealing ring (not shown) is circumferentially provided at the connection between the upper shell 310 and the lower shell 320 to improve sealing performance.
[0044] In this embodiment, the upper shell 310 is the shell near the top cover 100, and the lower shell 320 is the shell near the inner cover 200. The detachable connection between the upper shell 310 and the lower shell 320 allows the user to remove them for thorough cleaning of the air guide device 300, improving cleaning convenience and preventing residue from affecting cooking hygiene. The detachable connection can refer to detachment at one end or detachment at both ends. Specifically, one end of the upper shell 310 is hinged to the lower shell 320, and the other end is fastened to the lower shell 320. During closing, since one end of the upper and lower shells 320 are connected, it is convenient for the user to align them, and opening and closing only require operating the fastened end, making it convenient and efficient.
[0045] refer to Figure 3 and Figure 4 Furthermore, the upper shell 310 is provided with an air outlet 311, and the lower shell 320 is provided with an air inlet 321. The air inlet 321 is connected to the exhaust hole 210, and the air outlet 311 is connected to the air outlet. The air inlet 321 is frustum-shaped, and the upper radius is smaller than the lower radius.
[0046] In this embodiment, after steam is generated in the pot body, it enters the air inlet 321 through the vent 210, then passes through the air guide chamber 330, and exits sequentially from the air outlet 311 and the air vent 110 to the outside. Preferably, the vent 210 on the inner cover 200 and the air vent 110 on the top cover 100 are staggered, the air inlet 321 of the lower shell 320 is located on the side near the vent 210, and the air outlet 311 of the upper shell 310 is located on the side near the air vent. The air inlet 321 is frustum-shaped, which can be understood as a channel inlet. Its horizontal cross-section gradually decreases from bottom to top. That is, the opening of the air inlet 321 facing the exhaust hole 210 is larger than that of the other end, guiding the steam entering from the exhaust hole 210 to flow towards the air inlet 321. As the inlet radius decreases, the steam flow speed also slows down. Appropriately increasing the time in the air guiding device 300 is beneficial for cooling and defoaming, and helps the cooled gas to finally come out of the air outlet 110.
[0047] refer to Figure 4 Furthermore, the cross-sectional area of the gas guiding device 300 along the gas flow direction gradually increases from near the gas guiding inlet 321 to near the gas guiding outlet 311.
[0048] In this embodiment, the gas guiding device 300 extends from the gas inlet 321 to the gas outlet 311, and its cross-section refers to the area enclosed by the upper shell 310 and the lower shell 320. It gradually increases in size from near the gas inlet 321 to near the gas outlet 311. This can be understood as the gas guiding cavity 330 gradually widening from the gas inlet 321 to the gas outlet 311 in the vertical direction. This can be achieved by tilting the top surface of the upper shell 310 and / or the bottom surface of the lower shell 320. The narrower gas guiding cavity 330 near the gas inlet 321 facilitates foam compression and defoaming, while the wider gas guiding cavity 330 near the gas outlet 311 facilitates the outflow of steam after foam breakage. Thus, while preventing foam from carrying fluid out and causing overflow, it ensures that steam can be smoothly discharged to the outside.
[0049] refer to Figure 3 and Figure 4Furthermore, the lower shell 320 has a bottom surface, which includes a connected inclined surface 322 and a horizontal surface 323; the inclined surface 322 is located at one end near the air inlet 321 and gradually slopes downwards; the horizontal surface 323 is located at one end near the air outlet 311.
[0050] In this embodiment, when the foam bursts and liquid is generated, it flows downward along the inclined surface 322 and eventually gathers in the area of the horizontal surface 323. This concentrates the liquid in one area, greatly facilitating subsequent cleaning by the user. Preferably, in the direction from the air inlet 321 to the air outlet 311, the length of the inclined surface 322 is 3 to 5 times the length of the horizontal surface 323, and the connection between the inclined surface 322 and the horizontal surface 323 corresponds to the position of the air outlet 311. The angle between the inclined surface 322 and the horizontal surface 323 is 10 to 50°, for example, 15°, 30°, or 40°.
[0051] refer to Figure 5 Furthermore, the air guiding device 300 is internally connected to a baffle 340, and air guiding channels 341 are provided on both sides of the baffle 340.
[0052] In this embodiment, the baffle 340 within the gas guiding device 300 is used to block part of the space from the gas guiding inlet 321 to the gas guiding outlet 311, thereby increasing the flow path of the steam within the gas guiding chamber 330 and prolonging the time the steam spends within the gas guiding chamber 330, which is beneficial for cooling and defoaming. The baffle 340 may be perpendicular to or inclined to the extension direction of the gas guiding device 300, i.e., from the gas guiding inlet 321 to the gas guiding outlet 311.
[0053] refer to Figure 1 and Figure 3 Furthermore, it also includes a first sealing ring 400. The lower shell 320, the first sealing ring 400 and the inner cover 200 surround to form a sealing cavity 410. The sealing cavity 410 is connected to the air guide cavity 330 through the air guide inlet 321, and the exhaust hole 210 is connected to the air guide inlet 321 through the sealing cavity 410.
[0054] In this embodiment, the first sealing ring 400 is preferably connected to the lower shell 320. The inlet of the sealing cavity 410 is the vent 210 of the inner cover 200, and the outlet is the air inlet 321 of the lower shell 320. The steam generated in the pot enters the sealing cavity 410 through the vent 210 of the inner cover 200, exits from the sealing cavity 410 through the air inlet 321 and enters the air guiding cavity 330. After flowing out of the air guiding cavity 330 through the air guiding outlet 311, it is finally discharged to the outside through the vent 110. The sealing cavity 410 provides an additional flow space for the gas before it enters the air guiding cavity 330, further extending the flow time within the air guiding device 300, which is beneficial for defoaming and cooling.
[0055] refer to Figure 6 Furthermore, the air inlet 321 and the exhaust port 210 are misaligned, and the lower shell 320 is also provided with a temperature detector 500, which is correspondingly arranged with the exhaust port 210.
[0056] In this embodiment, since the steam cools down as it flows from the exhaust port 210 to the vent port 110, the staggered arrangement of the air inlet 321 and the exhaust port 210, combined with the position of the temperature detector 500, ensures that the steam is measured before flowing to the air inlet 321 after entering the exhaust port 210. This facilitates the temperature detector 500 in detecting the actual temperature inside the rice cooker, improving the accuracy of temperature detection, providing reliable data for the control system, and ensuring precise temperature control for food cooking and the safety of the rice cooker operation.
[0057] 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. A rice cooker lid with a venting device, the lid comprising a top cover and an inner cover connected to the inside of the top cover, the inner cover having a vent hole and the top cover having a vent hole, characterized in that, A detachable air guide device is provided between the top cover and the inner cover, and the exhaust port and the air outlet are connected through the air guide device.
2. The electric rice cooker cover with gas guiding device according to claim 1, characterized in that, The air guiding device includes an upper shell and a lower shell, which are detachably connected to form an air guiding cavity; The exhaust port and the air outlet are staggered and connected through the air guide cavity.
3. The electric rice cooker cover with gas guiding device according to claim 2, characterized in that, One end of the upper shell is hinged to the lower shell, and the other end is fastened to the lower shell.
4. The electric rice cooker cover with gas guiding device according to claim 2, characterized in that, The upper shell is provided with an air outlet, and the lower shell is provided with an air inlet. The air inlet is connected to the exhaust hole, and the air outlet is connected to the air outlet. The air inlet is frustum-shaped, and the upper radius is smaller than the lower radius.
5. The electric rice cooker cover with gas guiding device according to claim 4, characterized in that, The cross-sectional area of the gas guiding device along the gas flow direction gradually increases from near the gas inlet to near the gas outlet.
6. The electric rice cooker cover with gas guiding device according to claim 4, characterized in that, The lower shell has a bottom surface, which includes a connected inclined surface and a horizontal surface; The inclined surface is located at one end near the air inlet and gradually slopes downwards; The horizontal plane is located at one end near the gas outlet.
7. The electric rice cooker cover with gas guiding device according to claim 4, characterized in that, The air guiding device is connected to a baffle, and air guiding channels are provided on both sides of the baffle.
8. The electric rice cooker cover with gas guiding device according to claim 4, characterized in that, It also includes a first sealing ring, the lower shell, the first sealing ring and the inner cover form a sealing cavity, the sealing cavity is connected to the air guide cavity through the air guide inlet, and the exhaust hole is connected to the air guide inlet through the sealing cavity.
9. The electric rice cooker cover with gas guiding device according to claim 8, characterized in that, The lower shell is also equipped with a temperature detector, which is set in correspondence with the exhaust port.
10. The rice cooker lid with a gas guiding device according to any one of claims 2 to 9, characterized in that, A second sealing ring is provided circumferentially at the connection between the upper and lower shells.