Visual cover plate assembly and electric cooker

Abstract

The utility model discloses a visual cover plate assembly and an electric cooker. The visual cover plate assembly comprises an upper cover, a lower cover and a cover plate, the inner cover is mounted on the inner side of the bottom of the upper cover; the heat preservation plate is installed in the upper cover and located above the inner cover, the heat preservation plate, the inner wall of the top of the upper cover and the inner cover are arranged at equal intervals so as to form a first cavity and a second cavity respectively, and the first cavity and the second cavity are communicated through the middle and the circumferential edge of the heat preservation plate; the heating piece is mounted in the first cavity; the centrifugal fan is installed in the second cavity and corresponds to the middle of the heat preservation plate, and the inner cover is provided with a perspective part corresponding to the centrifugal fan. According to the electric cooker, the working state of the centrifugal fan is visualized through the perspective structure, so that the working state of the fan can be known in real time according to the using state of the electric cooker, problems can be solved in time, and the heating effect of the electric cooker is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a visual cover assembly and an electric rice cooker. Background Art

[0002] An electric rice cooker is a common kitchen appliance that converts electrical energy into heat energy for steaming, boiling, stewing, simmering, and other cooking processes. It is convenient, safe, and reliable to use. An electric rice cooker consists of a cover assembly, a pot body, and an inner pot. The inner pot is located within the pot body, and the cover assembly is hingedly mounted to the pot body so that the two can be closed, forming a cooking chamber between the cover assembly and the inner pot.

[0003] A heating device is generally provided in the cover assembly. In order to improve the heating effect, the heating device is generally used in conjunction with a fan to utilize the fan to accelerate the flow of air, promote heat exchange between the heating device and the air, and convection between cold and hot air, thereby improving the heating effect.

[0004] However, the existing fan is enclosed and installed inside the cover assembly, and it is impossible to observe whether the fan is started and the working status of the fan, so it is difficult to find problems that may occur when the fan is in working state, which in turn affects the heating effect. Utility Model Content

[0005] In order to overcome at least one of the defects described in the above-mentioned prior art, the purpose of the present utility model is to provide a visual cover assembly and an electric rice cooker, which realizes the visualization of the working status of the centrifugal fan by setting a perspective structure, so that the working status of the fan can be understood in real time when the electric rice cooker is in use, so as to respond in time when problems arise and ensure the heating effect of the electric rice cooker.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A visualization cover assembly, comprising:

[0008] Upper cover;

[0009] Inner cover, the inner cover is installed on the inner side of the bottom of the upper cover;

[0010] an insulation board installed in the upper cover and located above the inner cover, the insulation board being spaced apart from the top inner wall of the upper cover and the inner cover to form a first cavity and a second cavity respectively, the first cavity and the second cavity being connected through the middle portion and the circumferential edge of the insulation board;

[0011] a heating element, the heating element being installed in the first cavity;

[0012] A centrifugal fan is installed in the second cavity and is arranged corresponding to the middle part of the insulation board. The inner cover is provided with a perspective part corresponding to the centrifugal fan.

[0013] Furthermore, the middle portion of the heat preservation plate is protruded away from the inner cover to form a convex portion, the heating element surrounds the outer periphery of the convex portion, and the blades of the centrifugal fan are arranged corresponding to the convex portion.

[0014] Furthermore, an air inlet is provided in the middle of the insulation board corresponding to the centrifugal fan, an air outlet is provided on the peripheral side of the insulation board, and the first cavity and the second cavity are connected through the air inlet and the air outlet.

[0015] Furthermore, there are multiple air inlets and multiple air outlets, and the multiple air inlets are evenly spaced in the middle of the insulation board, and the multiple air outlets are evenly spaced around the insulation board.

[0016] Furthermore, the upper cover includes an outer cover and a support cover. The support cover, the insulation plate and the inner cover are spaced apart from top to bottom in the outer cover to form a first cavity between the support cover and the insulation plate. The support cover and the top inner wall of the outer cover are spaced apart to form a space for accommodating the motor. The motor is installed on the support cover and connected to the centrifugal fan.

[0017] Furthermore, an auxiliary fan is coaxially connected below the centrifugal fan, and the auxiliary fan is arranged corresponding to the perspective portion.

[0018] Furthermore, the inner cover includes an inner cover body and a perspective portion, wherein the perspective portion is protruded away from the centrifugal fan compared to the inner cover body to form an accommodating cavity for installing the auxiliary fan.

[0019] Furthermore, an auxiliary fan coaxially connected to the centrifugal fan is installed above the motor. The auxiliary fan is located in the space, and the outer cover is provided with a perspective area corresponding to the auxiliary fan.

[0020] Furthermore, the perspective portion is detachably connected to the inner cover, and / or the perspective area is detachably connected to the outer cover.

[0021] The utility model also provides an electric rice cooker, comprising: a cooker body, an inner pot and a cover assembly, wherein the inner pot is arranged in the cooker body, the cover assembly is hinged to the cooker body, and the cover assembly can be covered on the cooker body to form a cooking cavity between the cover assembly and the inner pot.

[0022] The beneficial effects of the visual cover assembly and the rice cooker provided by the utility model are as follows:

[0023] The present invention positions the centrifugal fan within the second cavity between the heat-insulating plate and the inner cover, and provides a see-through portion at a position on the inner cover corresponding to the centrifugal fan, thereby enabling visualization of the centrifugal fan. Thus, while the heating element is heating and the centrifugal fan is used to achieve heat convection between the first and second cavities, the centrifugal fan's operating status can be monitored in real time, allowing for timely response to any problems. This ensures uniform heating of the inner cover while the rice cooker is in use, preventing the inner cover from forming a localized cold end that causes steam to condense upon cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of the visualization cover assembly of Example 1;

[0025] Figure 2 is a cross-sectional view of the visualization cover assembly of Example 2;

[0026] Figure 3 is a cross-sectional view of the visual cover assembly of Example 3;

[0027] Figure 4 This is an exploded view of the visual cover assembly of the present invention;

[0028] Figure 5 It is a structural representation of the electric rice cooker in the open state of Example 4.

[0029] The meanings of the reference numerals are as follows:

[0030] 100. Pot body; 200. Inner pot; 300. Cover assembly; 1. Upper cover; 11. Outer cover; 111. Perspective area; 12. Support cover; 2. Inner cover; 21. Perspective portion; 22. Inner cover body; 23. Accommodating cavity; 3. Insulation plate; 31. Air inlet; 32. Air outlet; 4. First cavity; 5. Second cavity; 6. Heating element; 7. Centrifugal fan; 8. Auxiliary fan; 9. Motor. DETAILED DESCRIPTION

[0031] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] Example 1

[0035] See Figure 1 and Figure 4 The present embodiment provides a visual cover assembly, comprising an upper cover 1, an inner cover 2, a heat preservation plate 3, a heating element 6, and a centrifugal fan 7. The inner cover 2 is mounted on the inner side of the bottom of the upper cover 1. The heat preservation plate 3 is mounted inside the upper cover 1 and is located above the inner cover 2. The heat preservation plate 3 and the top inner wall of the upper cover 1 and the inner cover 2 are spaced apart to form a first cavity 4 and a second cavity 5, respectively. The first cavity 4 and the second cavity 5 are connected through the middle and circumferential edge of the heat preservation plate 3. The heating element 6 is mounted in the first cavity 4, the centrifugal fan 7 is mounted in the second cavity 5 and is arranged corresponding to the middle of the heat preservation plate 3, and the inner cover 2 is provided with a perspective portion 21 corresponding to the centrifugal fan 7.

[0036] The upper cover 1 is a semi-enclosed structure with an opening facing downward, and the inner cover 2 and the insulation board 3 are both detachably mounted in the upper cover 1 by means of structures such as snaps. The heating element 6 is mounted in the first cavity 4. The heating element 6 is a structure such as a heating wire or a light wave heating tube, and the heating element 6 is arranged close to or in contact with the insulation board 3, and is capable of heating the insulation board 3 and the air in the first cavity 4. On the one hand, the heated insulation board 3 can heat the inner cover 2 by heat radiation. On the other hand, the centrifugal fan 7 can draw the air in the first cavity 4 from the middle of the insulation board 3 into the second cavity 5, and then diffuse it to the surroundings through the centrifugal structure and flow into the first cavity 4 through the circumferential edge of the insulation board 3. In this way, the air in the first cavity 4 and the second cavity 5 undergoes circulating heat convection, so that the air temperature in the second cavity 5 is evenly distributed, so that the temperature of the inner cover 2 can be evenly heated through heat exchange.

[0037] On this basis, the inner cover 2 is provided with a perspective portion 21 corresponding to the centrifugal fan 7 , through which the appearance structure and working state of the centrifugal fan 7 can be observed, thereby ensuring that the centrifugal fan 7 can work normally.

[0038] Therefore, this embodiment disposes the centrifugal fan 7 in the second cavity 5 between the insulation plate 3 and the inner cover 2, and provides a perspective portion 21 at a position on the inner cover 2 corresponding to the centrifugal fan 7, so that the operating status of the centrifugal fan 7 can be observed through the perspective portion 21, thereby achieving visualization of the centrifugal fan 7. In this way, when the heating element 6 is used to heat and the centrifugal fan 7 is used to achieve heat convection between the first cavity 4 and the second cavity 5, the operating status of the centrifugal fan 7 can be understood in real time, so that timely measures can be taken when problems arise. This ensures uniform heating of the inner cover 2 when the rice cooker is in use, and prevents the inner cover 2 from forming a local cold end that causes the steam to liquefy into condensed water when cooled.

[0039] The middle portion of the insulation board 3 protrudes away from the inner cover 2 to form a convex portion. The heater 6 surrounds the outer periphery of the convex portion, and the blades of the centrifugal fan 7 are positioned corresponding to the convex portion. The convex portion increases the space in the second cavity 5 corresponding to the heater 6, facilitating the installation of the heater 6 and reducing the space occupied by the entire cover assembly. When the centrifugal fan 7 is positioned within the second cavity 5, a gap exists between the blades of the centrifugal fan 7 and the insulation board 3 to prevent the centrifugal fan 7 from colliding with the insulation board 3 during rotation, potentially damaging both the centrifugal fan 7 and the insulation board 3.

[0040] The heating element 6 surrounds the outer periphery of the protrusion, which can prevent the heating element 6 from affecting the centrifugal fan 7 from sucking air in the first cavity 4, and the uniform distribution of the heating element 6 is conducive to accelerating the uniformity of the heating temperature.

[0041] An air inlet 31 is provided in the center of the insulation board 3, corresponding to the centrifugal fan 7. Air outlets 32 are provided around the perimeter of the insulation board 3. The first cavity 4 and the second cavity 5 are connected via the air inlet 31 and air outlet 32. The insulation board 3 comprises a bottom plate and side panels. The air inlet 31 is located in the center of the bottom plate. The side panels surround the circumferential edge of the bottom plate and are detachably connected to the upper cover 1. The air outlets 32 are also located on the side panels.

[0042] Multiple air inlets 31 and outlets 32 are provided. Multiple air inlets 31 are evenly spaced in the center of the insulation board 3, while multiple air outlets 32 are evenly spaced around the circumference of the insulation board 3. Multiple air inlets 31 are evenly spaced in the center of the bottom panel, and multiple air outlets 32 are evenly spaced around the side panels. The even arrangement of air inlets 31 and outlets 32 facilitates uniform mixing of air within the first cavity 4 and the second cavity 5.

[0043] Based on the above structure, the centrifugal fan 7 is driven by a motor 9, which cooperates with the centrifugal fan 7 to form a fan structure. The upper cover 1 includes an outer cover 11 and a support cover 12. The support cover 12, the insulation board 3, and the inner cover 2 are spaced apart from each other within the outer cover 11 from top to bottom, forming a first cavity 4 between the support cover 12 and the insulation board 3. The support cover 12 is spaced apart from the top inner wall of the outer cover 11 to form a space for accommodating the motor 9, which is mounted on the support cover 12 and connected to the centrifugal fan 7.

[0044] The support cover 12, the insulation board 3, and the inner cover 2 are all detachably connected to the outer cover 11 via snap-fit ​​mechanisms. The motor 9 is mounted on the support cover 12, which supports the motor 9 to ensure its stability. The output shaft of the motor 9 passes through the support cover 12 and the insulation board 3 to connect to the centrifugal fan 7, thereby driving the centrifugal fan 7 through the motor 9.

[0045] The visualization of the centrifugal fan 7 is achieved through the perspective portion 21 on the inner cover 2. The perspective portion 21 can be an integral structure with the inner cover 2, and the perspective portion 21 can also be detachably connected to the inner cover 2 to facilitate wiping and cleaning the perspective portion 21 to ensure the visualization effect.

[0046] Example 2

[0047] See Figure 2 and Figure 4 This embodiment also provides a visual cover assembly. This cover assembly differs from the first embodiment in that an auxiliary fan 8 is coaxially connected below the centrifugal fan 7 and is disposed corresponding to the transparent portion 21. Thus, the operating status of the centrifugal fan 7 can be indirectly understood through the rotation of the auxiliary fan 8.

[0048] It should be noted that in this case, the centrifugal fan 7 can be installed in the first cavity 4, and the auxiliary fan 8 can be installed in the second cavity 5. The centrifugal fan 7 and the auxiliary fan 8 are both connected to the output shaft of the motor 9 to achieve a coaxial connection. This structure helps save space occupied by the cover assembly.

[0049] exist Figure 2 Based on the structure, the inner cover 2 includes an inner cover body 22 and a transparent portion 21. The transparent portion 21 is arranged to protrude from the inner cover body 22, away from the centrifugal fan 7, to form an accommodating cavity 23 for mounting the auxiliary fan 8. The inner cover body 22 can be a conventional plate-shaped structure. The transparent portion 21 can be removably connected to the inner cover body 22 to form an accommodating cavity 23 between the inner cover body 22 and the transparent portion 21 for mounting the auxiliary fan 8. This allows the operating status of the centrifugal fan 7 to be indirectly obtained through the auxiliary fan 8, while the structure of the inner cover body 22 is not affected.

[0050] Example 3

[0051] See Figure 3 and Figure 4 This embodiment also provides a visual cover assembly. The difference between this cover assembly and embodiment 1 is that an auxiliary fan 8 coaxially connected to the centrifugal fan 7 is installed above the motor 9. The auxiliary fan 8 is located in the space, and the outer cover 11 is provided with a perspective area 111 corresponding to the auxiliary fan 8.

[0052] Auxiliary fan 8 and centrifugal fan 7 are both coaxially connected to the output shaft of motor 9. The operating status of auxiliary fan 8 can be observed at perspective area 111, thereby indirectly understanding the operating status of centrifugal fan 7. Because perspective area 111 is provided on outer cover 11, centrifugal fan 7 can be visualized without opening the cover assembly, resulting in a simple structure and easy operation.

[0053] The see-through area 111 is detachably connected to the outer cover 11 , making it easy to clean or replace the see-through area 111 .

[0054] Example 4

[0055] See Figure 5 This embodiment provides an electric rice cooker, including a rice cooker body 100, an inner pot 200 and the visual cover assembly 300 of Example 1. The inner pot 200 is arranged in the rice cooker body 100, and the cover assembly 300 is hinged to the rice cooker body 100. The cover assembly 300 can be covered on the rice cooker body 100 to form a cooking cavity between the cover assembly 300 and the inner pot 200.

[0056] The outer cover 11 of the cover assembly 300 is rotatably connected to the pot body 100 via a hinge structure, so that the cover assembly 300 can be covered on the pot body 100 or the cooking cavity can be opened.

[0057] By assembling any of the cover plate assemblies 300 of Examples 1-3 on an electric rice cooker, the inner cover 2 can be uniformly heated using the heating element 6, the heat-insulating plate 3, the centrifugal fan 7, the first cavity 4, and the second cavity 5. Furthermore, the operating status of the centrifugal fan 7 can be directly or indirectly understood through the perspective portion 21 or the perspective area 111, thereby visualizing the centrifugal fan 7. Thus, while the heating element 6 is heating and the centrifugal fan 7 is used to achieve heat convection between the first cavity 4 and the second cavity 5, the operating status of the centrifugal fan 7 can be understood in real time, allowing for timely response to any problems. This ensures uniform heating of the inner cover 2 while the electric rice cooker is in use, thereby preventing the inner cover 2 from forming a localized cold end that causes steam to liquefy into condensed water upon cooling.

[0058] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A visual cover assembly, characterized in that: include: Upper cover (1); An inner cover (2), the inner cover (2) being mounted on the inner side of the bottom of the upper cover (1); an insulation board (3), the insulation board (3) being installed in the upper cover (1) and being located above the inner cover (2), the insulation board (3) being spaced apart from the top inner wall of the upper cover (1) and the inner cover (2) to respectively form a first cavity (4) and a second cavity (5), the first cavity (4) and the second cavity (5) being connected through the middle portion and the circumferential edge of the insulation board (3); a heating element (6), the heating element (6) being installed in the first cavity (4); A centrifugal fan (7) is installed in the second cavity (5) and is arranged corresponding to the middle of the heat preservation plate (3); the inner cover (2) is provided with a perspective portion (21) corresponding to the centrifugal fan (7).

2. The visualization cover assembly according to claim 1, characterized in that: The middle portion of the heat-insulating plate (3) is protruded away from the inner cover (2) to form a convex portion, the heating element (6) surrounds the outer periphery of the convex portion, and the blades of the centrifugal fan (7) are arranged corresponding to the convex portion.

3. The visualization cover assembly according to claim 1 or 2, characterized in that An air inlet (31) is provided in the middle of the heat preservation plate (3) corresponding to the centrifugal fan (7), an air outlet (32) is provided on the peripheral side of the heat preservation plate (3), and the first cavity (4) and the second cavity (5) are connected through the air inlet (31) and the air outlet (32).

4. The visualization cover assembly according to claim 3, characterized in that: There are multiple air inlets (31) and multiple air outlets (32), and the multiple air inlets (31) are evenly spaced and distributed in the middle of the insulation board (3), and the multiple air outlets (32) are evenly spaced and distributed around the insulation board (3).

5. The visualization cover assembly according to claim 1, characterized in that: The upper cover (1) comprises an outer cover (11) and a support cover (12); the support cover (12), the heat preservation plate (3) and the inner cover (2) are arranged in a spaced relationship from top to bottom in the outer cover (11) so that the first cavity (4) is formed between the support cover (12) and the heat preservation plate (3); the support cover (12) and the top inner wall of the outer cover (11) are spaced apart to form a space for accommodating a motor (9); the motor (9) is mounted on the support cover (12) and connected to the centrifugal fan (7).

6. The visualization cover assembly according to claim 1, characterized in that: An auxiliary fan (8) is coaxially connected below the centrifugal fan (7), and the auxiliary fan (8) is arranged corresponding to the perspective portion (21).

7. The visualization cover assembly according to claim 6, characterized in that: The inner cover (2) comprises an inner cover body (22) and the perspective portion (21), wherein the perspective portion (21) is protruded away from the centrifugal fan (7) relative to the inner cover body (22) to form an accommodating cavity (23) for installing the auxiliary fan (8).

8. The visualization cover assembly according to claim 5, characterized in that: An auxiliary fan (8) coaxially connected to the centrifugal fan (7) is installed above the motor (9); the auxiliary fan (8) is located in the space; and the outer cover (11) is provided with a perspective area (111) corresponding to the auxiliary fan (8).

9. The visualization cover assembly according to claim 8, characterized in that: The perspective portion (21) is detachably connected to the inner cover (2), and / or the perspective area (111) is detachably connected to the outer cover (11).

10. An electric rice cooker, characterized in that: include: A pot body (100), an inner pot (200) and a cover assembly (300) according to any one of claims 1 to 9, wherein the inner pot (200) is arranged in the pot body (100), the cover assembly (300) is hinged to the pot body (100), and the cover assembly (300) can be covered on the pot body (100) to form a cooking cavity between the cover assembly (300) and the inner pot (200).

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