Electric rice cooker upper cover with glass inner cover and electric rice cooker

Abstract

The utility model relates to the field of household appliances provides a take glass inner lid's electric rice cooker upper cover, including the cover body, still including glass inner lid, the edge of glass inner lid is connected in the inside of cover body through a support, the middle part of glass inner lid is protruding to the cover body, and the cross section of glass inner lid gradually increases from top to bottom, (1) through the setting of glass inner lid improves the security of cooking food, (2) the utility model discloses through the support and connect glass inner lid on the cover body, can realize more kinds of mode's connection, avoid the hole fixed on glass inner lid, reduce the difficulty of manufacturing process, also reduce the risk of glass inner lid breakage, improve security, (3) the utility model discloses through the detachable connection setting between glass inner lid, support and cover body convenient user to wash.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and more specifically, to a rice cooker lid with a glass inner cover and a rice cooker. 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] An electric rice cooker consists of a pot body and a hinged lid. The inner lid of the lid fits tightly against the edge of the inner pot in the pot body, reducing steam loss during heating and creating a high-temperature, high-pressure environment inside the pot. This not only allows the rice to cook faster but also locks in the moisture and aroma of the ingredients. At the same time, the inner lid effectively prevents soup from overflowing. When cooking porridge or soup, keep the pot and the stovetop clean.

[0004] In existing technologies, the inner lid is usually made of metal, but metal inner lids have some drawbacks. First, they have good thermal conductivity and cool down quickly, making them prone to condensation when exposed to steam, which can drip onto rice and other foods, affecting their texture. Second, the quality of metal inner lids varies, and they may release harmful substances under prolonged high temperatures, or food may get trapped due to peeling of the surface coating, or they may rust after long-term use, thus posing a threat to food safety. 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 glass inner lid and a rice cooker, thereby improving the safety of food cooked in the rice cooker.

[0006] One objective of this invention is to provide a rice cooker lid with a glass inner cover, comprising a lid body and a glass inner cover, wherein the edge of the glass inner cover is connected to the inner side of the lid body by a bracket.

[0007] In this technical solution, the lid is the main body of the rice cooker's upper lid, with the inner side of the lid facing the inner pot of the rice cooker. Compared to traditional aluminum alloy or stainless steel inner lids, this solution uses glass for the inner lid, avoiding the generation of unsafe substances under high-temperature cooking and preventing safety issues caused by coating peeling or rusting after long-term use, thus improving safety. Simultaneously, because glass is transparent, contaminants on both the inner and outer layers are easily observed and addressed promptly, further ensuring the hygiene of food cooked in the rice cooker. Furthermore, since glass conducts heat more slowly than metal, it retains heat better, improving cooking efficiency. Also, due to its slower heat conduction and cooling rate, steam is less likely to cool and condense upon contact, thus reducing condensation.

[0008] The bracket connects the inner glass cover and the cover body. The inner glass cover and the bracket can be fixedly or detachably connected; the connection method is sufficient to achieve a secure connection. Preferably, the inner glass cover and the bracket are connected without perforations, including but not limited to a groove on the inner side of the bracket, with the edge of the inner glass cover embedded in the groove. However, fixing the inner glass cover to the cover body by drilling holes and using screws can easily damage the glass, requires high operational skills, and is difficult to operate. In this solution, connecting the inner glass cover to the cover body using a bracket allows for more connection methods, avoids drilling holes in the inner glass cover, reduces manufacturing difficulty, lowers the risk of breakage, and improves safety. The bracket is made of materials including but not limited to plastic. The bracket and the cover body can be fixedly or detachably connected.

[0009] Furthermore, the middle part of the inner glass cover protrudes towards the cover body, and the cross-section of the inner glass cover gradually increases from top to bottom.

[0010] In this technical solution, the cross-section of the inner glass cover gradually increases from top to bottom. This can be understood as the rice cooker lid being tilted upwards from the edge of the inner glass cover to the middle of the inner glass cover when it is closed.

[0011] Because hot steam condenses upon contact with the inner lid, a raised section in the center of the glass inner lid allows the condensate to flow down the lid to the edge of the rice cooker when the user opens the lid, preventing it from dripping into the food inside the pot and affecting its texture and taste. Furthermore, this raised inner lid design avoids the need for a drainage channel, which would increase manufacturing complexity.

[0012] Furthermore, the top of the inner glass cover is provided with an exhaust vent.

[0013] In this technical solution, the vent is an opening that communicates with the outside. The vent serves to guide and release steam, and it is also the area where steam tends to concentrate. The top of the inner glass cover refers to the protruding part in the middle of the inner glass cover. Placing the vent at this position separates the area where steam concentrates from the food inside the pot, preventing the high humidity of the concentrated steam from affecting the taste of the food, and providing sufficient flow space for steam to escape.

[0014] Furthermore, the inner glass cover is spherical, and the angle between the tangent of the edge of the inner glass cover and the horizontal plane is 10° to 45°.

[0015] In this technical solution, if the inner glass cover is an inverted cone shape, its edge to center is a linear plane. Condensate is significantly affected by gravity during flow, and when it slides down, it is more likely to drip directly into the inner pot of the cooker, affecting the taste of the food. In this solution, the inner glass cover is spherical, meaning it is a spherical shape truncated by a plane, excluding the bottom surface. From the edge of the inner glass cover to the top center, it is an inclined arc surface. Condensate flows slowly and evenly from the top surface along the tangent of the spherical surface to the edge. The entire process is smoother, less prone to localized water accumulation, allowing condensate to flow more smoothly to the edge of the inner glass cover, reducing the probability of condensate dripping midway, and preventing the food in the inner pot of the cooker from having a poor taste.

[0016] The angle between the cut surface of the inner glass cover edge and the horizontal plane can be 20°, 30°, 35°, or 40°, etc. An appropriate angle setting ensures that the thickness of the inner glass cover is not too small, guaranteeing sufficient curved surface for condensation distribution and smooth flow to the edge; at the same time, it prevents the inner glass cover from being too thick, reducing its space occupation, resulting in a smaller overall size of the top cover, saving materials and costs, making the overall design more aesthetically pleasing and lighter.

[0017] Furthermore, it also includes a clamping ring, which is connected to the bracket to clamp and fix the edge of the inner glass cover.

[0018] In this technical solution, the clamping ring and the bracket are connected to form an annular clamping space. The edge of the inner glass cover is placed within the clamping space and is fixed by the clamping force between the clamping ring and the bracket. Specifically, the bracket is also annular, and the clamping ring and the inner edge of the bracket form a clamping space. This arrangement allows for a secure connection between the inner glass cover and the bracket through a simple structure.

[0019] Furthermore, the outer edge of the clamping ring is connected to multiple limiting edges and buckles extending towards the inner glass cover. The limiting edges abut against the edge of the inner glass cover. The bracket is provided with multiple slots that match the buckles. The buckles and slots are matched and connected to clamp and fix the edge of the inner glass cover.

[0020] In this technical solution, the limiting edge is preferably perpendicular to the clamping ring, and its contact with the inner glass cover prevents the inner glass cover from shifting in the horizontal direction, ensuring that the cooking operation of the rice cooker is not affected. The clamping ring and the bracket are detachably connected by buckles and slots, making it convenient for users to disassemble and clean the inner glass cover.

[0021] Preferably, the limiting edge and the buckle are both arranged circumferentially along the clamping ring, and the limiting edge and the buckle are arranged alternately at intervals. The interval arrangement can prevent the limiting edge from affecting the buckle's engagement with the slot. Preferably, there are 4 to 10 buckles, and more preferably 8 buckles. The number and position of the slots on the bracket are matched with the buckles.

[0022] Furthermore, the bottom surface of the clamping ring is composed of a plane and an inclined surface, the inclined surface being connected to the inner side of the plane, and the inclined surface gradually sloping from bottom to top.

[0023] In this technical solution, the bottom surface of the clamping ring is the side that contacts the edge of the inner glass cover. The bottom surface of the clamping ring acts as a limiting surface for the inner glass cover, preventing it from shifting in the vertical direction. When the inner glass cover is a spherical crown shape with a central convex shape, the outer edge has a relatively gentle inclination, while the inclination increases towards the center. Therefore, the design of the bottom surface of the clamping ring connecting to the inclined surface can match the curved surface of the inner glass cover, allowing the bottom surface of the clamping ring to fit snugly against the inner glass cover, thus making the clamping ring's limiting effect on the inner glass cover more secure.

[0024] Furthermore, a sealing ring is provided between the edge of the inner glass cover and the bracket.

[0025] In this technical solution, the sealing ring can fill the gap between the inner glass cover and the support, making the connection between the two more secure, and also preventing water vapor from flowing out from the gap between the inner glass cover and the support, thus preventing steam leakage from affecting the temperature rise inside the pot and reducing cooking efficiency.

[0026] Furthermore, the bracket and the inner side of the cover are detachably connected.

[0027] In this technical solution, the bracket and the cover are detachably connected for easy disassembly and cleaning by the user. The detachable connection includes, but is not limited to, snap-fit ​​connections.

[0028] Another objective of this utility model is to provide a rice cooker, including a cooker body and a rice cooker lid as described above, wherein the rice cooker lid is hinged to the cooker body.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] (1) This utility model uses glass for the inner lid, which avoids the generation of unsafe substances under high-temperature cooking and also prevents safety issues caused by coating peeling or rusting after long-term use, thus improving the safety of cooked food. At the same time, since glass is transparent, it is easy to observe contaminants on the inner and outer layers of the glass, so as to deal with them in time and further ensure the hygiene of food cooked in the rice cooker. Furthermore, since glass conducts heat more slowly than metal, it can better retain heat and improve cooking efficiency. Also, due to its slower heat conduction, the cooling speed is slower, and steam is less likely to cool and form condensation when it comes into contact with the glass, thereby reducing the formation of condensation.

[0031] (2) This utility model connects the inner glass cover to the cover body through a bracket, which can realize more connection methods, avoid drilling holes in the inner glass cover for fixing, reduce the difficulty of the manufacturing process, reduce the risk of the inner glass cover breaking, and improve safety.

[0032] (3) This utility model is convenient for users to disassemble and clean by setting up a detachable connection between the glass inner cover, the bracket and the cover body. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the rice cooker lid of this utility model.

[0034] Figure 2 This is an exploded view of the structure of the rice cooker lid of this utility model.

[0035] Figure 3 This is a schematic diagram of the glass inner cover of this utility model.

[0036] Figure 4 This is a schematic diagram of the clamping ring of this utility model.

[0037] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0038] Reference numerals: cover 100, inner glass cover 200, bracket 300, clamping ring 400, limiting edge 410, buckle 420, plane 430, inclined surface 440, first sealing edge 510, second sealing edge 520, third sealing edge 530, first sealing groove 540, second sealing groove 550. 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 Figures 1 to 3 This embodiment provides a rice cooker lid with a glass inner cover 200, including a lid body 100 and a glass inner cover 200. The edge of the glass inner cover 200 is connected to the inner side of the lid body 100 by a bracket 300.

[0042] In this embodiment, the cover 100 is the main body of the rice cooker lid, and the inner side of the cover 100 refers to the side facing the inner pot of the rice cooker. Compared with traditional aluminum alloy or stainless steel inner lids, this solution uses glass for the inner lid to avoid the generation of unsafe substances under high-temperature cooking and to prevent safety issues caused by coating peeling or rusting after long-term use, thus improving safety. At the same time, since glass is transparent, contaminants on the inner and outer layers of the glass are easily observed and dealt with promptly, further ensuring the hygiene of food cooked in the rice cooker. Furthermore, since glass conducts heat more slowly than metal, it can better retain heat, improving cooking efficiency. Also, due to its slower heat conduction and cooling speed, steam is less likely to cool and form condensation upon contact, thus reducing condensation formation.

[0043] The bracket 300 connects the inner glass cover 200 and the cover body 100. The inner glass cover 200 and the bracket 300 can be fixedly connected or detachably connected; the connection method is only necessary to achieve a secure connection. Preferably, the inner glass cover 200 and the bracket 300 are connected without perforations, including but not limited to a groove on the inner side of the bracket 300, with the edge of the inner glass cover 200 embedded in the groove. However, fixing the inner glass cover 200 to the cover body 100 by drilling holes and using screws can easily damage the glass, requires high operational skills, and is difficult to operate. In this solution, connecting the inner glass cover 200 to the cover body 100 using the bracket 300 allows for more connection methods, avoids drilling holes in the inner glass cover 200 for fixation, reduces manufacturing difficulty, lowers the risk of breakage of the inner glass cover 200, and improves safety. The bracket 300 is made of materials including but not limited to plastic. The bracket 300 and the cover body 100 can be fixedly connected or detachably connected. Preferably, the bracket 300 and the inner side of the cover 100 are detachably connected. This detachable connection facilitates user disassembly and cleaning. The detachable connection includes, but is not limited to, a snap-fit ​​connection. Specifically, the bracket has multiple snaps circumferentially, and the inner side of the cover 100 has a locking slot that matches the snaps. The snaps and locking slots connect to form a detachable connection between the bracket 300 and the cover 100.

[0044] refer to Figure 3Furthermore, the middle part of the inner glass cover 200 protrudes towards the cover body 100, and the cross-section of the inner glass cover 200 gradually increases from top to bottom, as shown in the figure, the cross-section at point a is larger than the cross-section at point b. The top of the inner glass cover 200 is provided with a vent hole. Furthermore, the inner glass cover 200 is spherical, and the angle between the tangent of the edge of the inner glass cover 200 and the horizontal plane 430 is 10° to 45°.

[0045] refer to Figure 3 The angle between the tangent of the edge of the inner glass cover 200 and the horizontal plane 430 is α, which can be 15°, 20°, 30°, 35°, or 40°, etc. This appropriate angle setting ensures that the thickness of the inner glass cover 200 is not too small, guaranteeing sufficient curved surface for condensate distribution and smooth flow to the edge; simultaneously, it prevents the inner glass cover 200 from being too thick, reducing its space occupation and resulting in a smaller overall volume of the cover, saving materials and costs, making the overall design more aesthetically pleasing and lighter.

[0046] refer to Figure 4 and Figure 5 Furthermore, it also includes a clamping ring 400, which is connected to the bracket 300 to clamp and fix the edge of the inner glass cover 200. The clamping ring 400 and the bracket 300 form an annular clamping space, and the edge of the inner glass cover 200 is placed within the clamping space and fixed by the clamping force between the clamping ring 400 and the bracket 300. Specifically, the bracket 300 is also annular, and the clamping ring 400 and the inner edge of the bracket 300 form a clamping space. This arrangement allows for a secure connection between the inner glass cover 200 and the bracket 300 through a simple structure.

[0047] refer to Figure 4 The outer edge of the clamping ring 400 is connected to a plurality of limiting edges 410 and buckles 420 extending toward the inner glass cover 200. The limiting edges 410 abut against the edge of the inner glass cover 200. The bracket 300 is provided with a plurality of slots that match the buckles 420. The buckles 420 and the slots are matched and connected to clamp and fix the edge of the inner glass cover 200.

[0048] refer to Figure 4 Preferably, the limiting edge 410 and the buckle 420 are both arranged circumferentially along the clamping ring 400. The limiting edge 410 and the buckle 420 are arranged alternately and at intervals. The interval arrangement can prevent the limiting edge 410 from affecting the buckle 420's engagement slot. The buckle 420 is preferably 4 to 10, more preferably 8. The number and position of the slots on the bracket 300 are matched with the buckle 420.

[0049] refer to Figure 5Furthermore, the bottom surface of the clamping ring 400 is composed of a plane 430 and an inclined surface 440, the inclined surface 440 is connected to the inner side of the plane 430, and the inclined surface 440 gradually slopes from bottom to top.

[0050] Furthermore, a sealing ring is provided between the edge of the inner glass cover 200 and the bracket 300. Specifically, the sealing ring has an N-shaped cross-section and includes a first sealing edge 510, a second sealing edge 520, and a third sealing edge 530 connected in sequence. The first sealing edge 510 and the second sealing edge 520 are connected to form a first sealing groove 540, and the second sealing edge 520 and the third sealing edge 530 are connected to form a second sealing groove 550. The first sealing groove 540 is used to accommodate at least a portion of the bracket 300, and the first sealing edge 510 is located between the inner glass cover 200 and the bracket 300.

[0051] Example 2

[0052] This embodiment provides a rice cooker, including a cooker body and a rice cooker lid as provided in Embodiment 1, wherein the rice cooker lid is hinged to the cooker body.

[0053] 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 glass inner lid, comprising a lid body, characterized in that it further comprises a glass inner lid, the edge of which is connected to the inner side of the lid body by a bracket. It also includes a clamping ring, which is connected to the bracket to clamp and fix the edge of the inner glass cover.

2. The rice cooker lid with a glass inner lid according to claim 1, characterized in that, The middle part of the inner glass cover protrudes towards the cover body, and the cross-section of the inner glass cover gradually increases from top to bottom.

3. The rice cooker lid with a glass inner lid according to claim 2, characterized in that, The top of the inner glass cover is provided with an exhaust vent.

4. The rice cooker lid with a glass inner cover according to claim 2, characterized in that, The inner glass cover is spherical, and the angle between the tangent of the edge of the inner glass cover and the horizontal plane is 10°~45°.

5. The rice cooker lid with a glass inner cover according to claim 1, characterized in that, The outer edge of the clamping ring is connected to multiple limiting edges and buckles extending towards the inner glass cover. The limiting edges abut against the edge of the inner glass cover. The bracket is provided with multiple slots that match the buckles. The buckles and slots are matched and connected to clamp and fix the edge of the inner glass cover.

6. The rice cooker lid with a glass inner cover according to claim 1, characterized in that, The bottom surface of the clamping ring consists of a flat surface and an inclined surface, the inclined surface being connected to the inner side of the flat surface, and the inclined surface gradually sloping upwards.

7. The rice cooker lid with a glass inner lid according to any one of claims 1 or 6, characterized in that, A sealing ring is provided between the edge of the inner glass cover and the bracket.

8. The rice cooker lid with a glass inner lid according to any one of claims 1 to 6, characterized in that, The bracket and the inner side of the cover are detachably connected.

9. An electric rice cooker, comprising a cooker body, characterized in that, It also includes the rice cooker lid according to any one of claims 1 to 8, wherein the rice cooker lid is hinged to the cooker body.

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