Rice cooker cover body and microwave rice cooker

Abstract

The utility model relates to the technical field of household appliances, and provides a rice cooker cover body and a microwave rice cooker, the rice cooker cover body comprises a shielding cover plate, a non-contact temperature measurement sensor and a sealing part, and the shielding cover plate is suitable for realizing microwave shielding; the non-contact temperature measurement sensor is at least partially located on the side, away from a cooking cavity of the rice cooker, of the shielding cover plate, and a first through hole is formed in the shielding cover plate and corresponds to the non-contact temperature measurement sensor; the sealing part is at least partially installed in the first through hole, the sealing part is at least partially assembled between the shielding cover plate and the non-contact temperature measurement sensor in a sealed mode, the sealing part is provided with a channel, the non-contact temperature measurement sensor forms a detection view field, the detection view field is suitable for penetrating through the channel, or the non-contact temperature measurement sensor partially penetrates through the channel; steam generated in the food heating process in the cooking cavity cannot enter the upper portion of the shielding cover plate to make contact with an electric device arranged on the rice cooker cover body, and the service life of the rice cooker cover body is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a rice cooker cover and a microwave rice cooker. Background Art

[0002] For a microwave rice cooker, the rice cooker cover generally includes a shielding cover plate that can shield microwaves. The shielding cover plate is used to enclose a shielding cavity together with the shielding outer pot on the cooker body. Considering the protection of the electrical components on the rice cooker cover body, the electrical components on the rice cooker cover body are mainly arranged on the side of the shielding cover plate away from the shielding cavity. When a non-contact temperature measuring component is arranged on the rice cooker cover body to improve the temperature measurement effect, a through hole needs to be arranged at the position corresponding to the non-contact temperature measuring component on the shielding cover plate. The steam generated during the heating of food in the cooking cavity may enter the rice cooker cover body and damage the electrical components on the shielding cover plate. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a rice cooker cover body, which is provided with a sealing component to prevent steam from passing through the space between the shielding cover plate and the non-contact temperature sensor to enter the position of other electrical components above the shielding cover plate except the temperature sensor, thereby causing damage to the electrical components.

[0004] The utility model also provides a microwave rice cooker.

[0005] The rice cooker cover according to the first embodiment of the utility model comprises:

[0006] A shielding cover plate suitable for achieving microwave shielding;

[0007] A non-contact temperature measurement sensor is at least partially located on a side of the shielding cover away from the cooking cavity of the rice cooker, and a first through hole is provided on the shielding cover, and the first through hole corresponds to the non-contact temperature measurement sensor;

[0008] A sealing component, wherein the sealing component is at least partially installed in the first through hole, and the sealing component is at least partially sealed and assembled between the shielding cover and the non-contact temperature measurement sensor. The sealing component is provided with a channel, and the non-contact temperature measurement sensor forms a detection field of view, and the detection field of view is suitable for passing through the channel, or the non-contact temperature measurement sensor is partially penetrated through the channel.

[0009] According to the rice cooker cover of the embodiment of the utility model, a sealing component is provided which is at least partially sealed and assembled between the shielding cover and the non-contact temperature measuring sensor, so that the steam generated during the heating of food in the cooking cavity cannot enter above the shielding cover and contact other electrical components except the non-contact temperature measuring sensor arranged on the rice cooker cover, thereby effectively ensuring the service life of the rice cooker cover.

[0010] According to an embodiment of the utility model, the rice cooker cover body further comprises a plastic inner cover, the plastic inner cover is located on a side of the shielding cover away from the cooking cavity, the non-contact temperature sensor is arranged on the plastic inner cover; the sealing component is at least partially sealed and connected to the plastic inner cover and the shielding cover;

[0011] and / or,

[0012] The rice cooker cover body also includes a movable cover plate, which is detachably connected to a side of the shielding cover plate facing the cooking cavity. The movable cover plate is provided with a second through hole corresponding to the non-contact temperature measurement sensor, and the second through hole is suitable for the detection field of view to pass through. The movable cover plate is suitable for enclosing the cooking cavity with the inner pot of the microwave rice cooker; the sealing component is at least partially sealed and assembled between the movable cover plate and the shielding cover plate.

[0013] According to one embodiment of the utility model, when the rice cooker cover body includes the plastic inner cover and the movable cover plate, the first end of the sealing component seals against the movable cover plate, the second end of the sealing component seals against the plastic inner cover, and the sealing component is sealingly embedded in the first through hole.

[0014] According to an embodiment of the utility model, along the extension direction of the detection field of view, the shielding cover plate can move relative to the plastic inner cover;

[0015] The sealing component includes a main body and two elastic parts, the two elastic parts are respectively located at two ends of the main body along the extending direction, the main body is embedded in the first through hole, and the two elastic parts abut against the movable cover plate and the plastic inner cover respectively.

[0016] According to an embodiment of the present invention, along the extending direction, the elastic portion includes at least one bending segment.

[0017] According to an embodiment of the present utility model, the opening of the bending section faces the axial direction of the channel, and the sealing component is an integrally formed component.

[0018] According to one embodiment of the utility model, the wall thickness of the bending section on both sides of the inflection point are respectively the first wall thickness and the second wall thickness, and along the extension direction, the difference obtained by subtracting the sum of all the first wall thickness and the second wall thickness from the length of the elastic part is greater than or equal to 1 mm.

[0019] According to an embodiment of the utility model, at least one of the side wall of the sealing component and the inner wall of the first through hole is provided with a convex ring, and the other is provided with a ring groove that seals with the convex ring.

[0020] According to an embodiment of the present utility model, an optical lens is embedded in the inner wall of the channel, and the optical lens is hermetically connected to the inner wall of the channel, and is adapted to isolate the non-contact temperature sensor and the cooking cavity.

[0021] According to an embodiment of the present utility model, the non-contact temperature sensor is an infrared temperature sensor; the optical lens is a filter, and is adapted to filter infrared light of a specific frequency band.

[0022] According to an embodiment of the present utility model, on the orthographic projection in the extending direction of the detection field of view, the projected area of the optical lens is larger than the projected area of the first through hole, and the optical lens is located on the side of the shielding cover plate away from the cooking cavity, or the optical lens is located on the side of the shielding cover plate close to the cooking cavity.

[0023] A microwave rice cooker according to an embodiment of the second aspect of the present utility model includes:

[0024] A cooking body including a shielding cover;

[0025] The rice cooker lid body as described above, and a shielding cavity is formed by enclosing the shielding cover plate of the rice cooker lid body and the shielding cover, and the shielding cavity is adapted to place food materials.

[0026] The beneficial effects of the microwave rice cooker according to the embodiment of the present utility model are the same as those of the rice cooker lid body in the embodiment of the first aspect of the present utility model, and will not be described herein again.

[0027] According to an embodiment of the present utility model, the cooking body further includes:

[0028] An inner pot, and the inner pot and the movable cover plate of the rice cooker lid body enclose to form the cooking cavity.

[0029] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is one of the structural schematic diagrams of the microwave rice cooker provided by the embodiment of the present utility model.

[0032] Figure 2It is a cross-sectional view of the rice cooker lid of the microwave rice cooker provided by the embodiment of the present utility model.

[0033] Figure 3 is Figure 2 an enlarged view of the partial area A in

[0034] Figure 4 It is an exploded view of the rice cooker lid of the microwave rice cooker provided by the embodiment of the present utility model.

[0035] Figure 5 It is a structural schematic diagram of the sealing component of the microwave rice cooker provided by the embodiment of the present utility model.

[0036] Reference numerals:

[0037] 10, cooking body; 11, shielding cover; 12, inner pot; 13, shielding cavity; 14, cooking cavity;

[0038] 20, rice cooker lid; 21, shielding cover plate; 211, first through hole; 212, convex ring; 22, movable cover plate; 221, second through hole; 23, sealing component; 231, channel; 232, annular groove; 233, main body part; 234, elastic part; 2341, bent section;

[0039] 30, non-contact temperature measurement sensor; 31, detection field of view;

[0040] 40, plastic inner cover; 41, third through hole;

[0041] 50, optical lens. Specific embodiments

[0042] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0043] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0045] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] Combined with Figures 1 to 4 As shown, the rice cooker lid body 20 according to the first aspect embodiment of the present utility model includes a shielding cover plate 21, a non-contact temperature sensor 30, and a sealing member 23. The shielding cover plate 21 is adapted to achieve microwave shielding; the non-contact temperature sensor 30 is at least partially located on the side of the shielding cover plate 21 facing away from the cooking cavity 14 of the rice cooker. A first through hole 211 is provided on the shielding cover plate 21, and the first through hole 211 corresponds to the non-contact temperature sensor 30; the sealing member 23 is at least partially installed in the first through hole 211, and the sealing member 23 is at least partially hermetically assembled between the shielding cover plate 21 and the non-contact temperature sensor 30. The sealing member 23 is provided with a channel 231, and the non-contact temperature sensor 30 forms a detection field of view 31. The detection field of view 31 is adapted to pass through the channel 231, or the non-contact temperature sensor 30 is partially inserted into the channel 231.

[0048] According to the rice cooker lid body 20 of the embodiment of the present utility model, when in use, it is covered on the cooking body 10 of the microwave rice cooker. Articles (such as food) are placed in the cooking cavity 14 for microwave heating. The shielding cover plate 21 and the shielding cover 11 of the cooking body 10 can enclose to form a shielding cavity 13 for preventing microwave leakage. During the heating process of the food, the detection field of view 31 of the non-contact temperature sensor 30 passes through the channel 231 to reach the surface of the food, and the food temperature information is collected.

[0049] It should be noted that in the technical solution of arranging a non-contact temperature sensor 30 on the rice cooker lid body 20 of the microwave rice cooker to detect the temperature of the food in the cooking cavity 14, a through hole needs to be opened on the rice cooker lid body 20 corresponding to the non-contact temperature sensor 30. And on the side of the shielding cover plate 21 facing away from the cooking cavity 14, there are usually electrical components of the rice cooker lid body 20. There is a problem that the steam generated during the heating process of the food in the cooking cavity 14 enters the side of the shielding cover plate 21 facing away from the cooking cavity 14 and damages the electrical components.

[0050] According to the rice cooker lid body 20 of the embodiment of the present utility model, by arranging the sealing member 23 to be at least partially sealed and assembled between the shielding cover plate 21 and the non-contact temperature sensor 30, the steam generated during the heating process of the food in the cooking cavity 14 cannot enter above the shielding cover plate 21 to contact other electrical components of the rice cooker lid body 20 except the non-contact temperature sensor 30, effectively ensuring the service life of the rice cooker lid body 20.

[0051] Specifically, in the present application, the sealing member 23 is at least partially sealed and assembled between the shielding cover plate 21 and the non-contact temperature sensor 30, which includes both the sealing member 23 directly contacting the shielding cover plate 21 and the non-contact temperature sensor 30 to achieve sealing, and also includes arranging an intermediate element between the sealing member 23 and the non-contact temperature sensor 30 to indirectly achieve the sealing fit between the sealing member 23 and the non-contact temperature sensor 30. For example, for the scenario of indirectly achieving the sealing fit, in some embodiments, the rice cooker lid body 20 further includes a plastic inner lid 40. The plastic inner lid 40 is located on the side of the shielding cover plate 21 facing away from the cooking cavity 14. The non-contact temperature sensor 30 is installed on the plastic inner lid 40. The sealing member 23 at least partially abuts and seals between the plastic inner lid 40 and the shielding cover plate 21, thereby indirectly achieving sealing and preventing steam from entering the side of the rice cooker lid body 20 located on the side of the shielding cover plate 21 away from the cooking cavity 14 due to the existence of the first through hole.

[0052] When the non-contact temperature sensor 30 passes through the channel 231, the sealing member 23 can abut and seal between the part of the structure where the non-contact temperature sensor 30 passes through the channel 231 and the shielding cover plate 21.

[0053] In this embodiment, the shielding cover plate 21 can be made of metal material and can be manufactured by cold-rolled plate and epoxy resin powder spraying process; of course, it can also be made of carbon fiber, metallized ceramics and other materials to achieve microwave shielding effect.

[0054] It can be understood that when the shielding cover 21 is made of metal material, the surface of the metal material is provided with a coating that does not react with the steam generated by the heating of food or no coating is provided, and the food can be placed directly in the shielding cavity 13 without providing a movable cover 22 and an inner pot 12 (which will be explained later), thereby improving the flexibility of use of the microwave rice cooker.

[0055] In this embodiment, the non-contact temperature sensor 30 adopts a far-infrared temperature sensor, which can measure the temperature without contacting the food, avoiding damage or contamination to the food, and has a fast response speed. It can complete the measurement of the temperature of the target object within a few milliseconds, effectively preventing overheating of the food; of course, radiation temperature measuring instruments, laser thermometers, etc. can also be used.

[0056] In this embodiment, the first through hole 211 is circular. Of course, the first through hole 211 may also be rectangular, elliptical, etc., as long as it is suitable for the detection field of view 31 to pass through.

[0057] In one embodiment, in combination Figure 3 As shown, the rice cooker cover 20 further includes a plastic inner cover 40, which is located on the side of the shielding cover 21 away from the cooking cavity 14, and the non-contact temperature sensor 30 is arranged on the plastic inner cover 40; the sealing component 23 is at least partially sealed and connected to the plastic inner cover 40 and the shielding cover 21. The plastic inner cover 40 is in sealing contact with the sealing component 23, and the plastic inner cover 40, the sealing component 23 and the shielding cover 21 are combined to block steam.

[0058] In this embodiment, the sealing component 23 can effectively prevent the steam in the cooking cavity 14 from entering the space on both sides of the plastic inner cover 40, thereby preventing the high-temperature steam from affecting the operation of the electrical components on the side of the plastic inner cover 40 away from the cooking cavity 14. At the same time, it can also prevent the high-temperature steam from entering between the plastic inner cover 40 and the shielding cover 21, thereby preventing the high-temperature steam from contacting the plastic inner cover 40 or the shielding cover 21 with a lower temperature to form condensed water that accumulates in the rice cooker cover 20 and is difficult to clean, or flows back into the cooking cavity 14 and causes food contamination.

[0059] In this embodiment, the plastic inner cover 40 is provided with a third through hole 41, and the probe of the non-contact temperature sensor 30 is arranged in the third through hole 41 and is sealed and connected to the third through hole 41, so that it can effectively ensure that high-temperature steam does not invade the rear component of the non-contact temperature sensor 30 from the connection gap between the non-contact temperature sensor 30 and the third through hole 41.

[0060] In one embodiment, in combinationFigure 3 As shown, the rice cooker lid body 20 further includes a movable cover plate 22. The movable cover plate 22 is detachably connected to one side of the shielding cover plate 21 facing the cooking cavity 14. The movable cover plate 22 is provided with a second through hole 221 corresponding to the non-contact temperature sensor 30. The second through hole 221 is adapted for the detection field of view 31 to pass through. The movable cover plate 22 is adapted to enclose the inner pot 12 of the microwave rice cooker to form the cooking cavity 14; the sealing member 23 is at least partially sealed and assembled between the movable cover plate 22 and the shielding cover plate 21.

[0061] By providing the inner pot 12 and the movable cover plate 22, the steam generated during the food heating process is restricted, preventing the steam from overflowing into the shielding cavity 13 and contacting the shielding cover 11 or the shielding cover plate 21, avoiding damage to the corresponding shielding cover 11 or shielding cover plate 21 (such as internal structure changes after withstanding high-temperature steam resulting in the loss of shielding effect); and the sealing member 23 includes a sealing connection structure located between the non-contact temperature sensor 30, the movable cover plate 22 and the shielding cover plate 21, effectively preventing the high-temperature steam in the cooking cavity 14 from entering between the movable cover plate 22 and the shielding cover plate 21, preventing the high-temperature steam from contacting the relatively low-temperature movable cover plate 22 or shielding cover plate 21 and forming condensed water, which is difficult to clean and accumulates in the rice cooker lid body 20, or flowing back into the cooking cavity 14 and causing food contamination.

[0062] According to an embodiment of the present invention, in combination with Figure 3 As shown, when the rice cooker lid body 20 includes a plastic inner cover 40 and a movable cover plate 22, the first end of the sealing member 23 is sealed and abutted against the movable cover plate 22, the second end of the sealing member 23 is sealed and abutted against the plastic inner cover 40, and the sealing member 23 is sealingly fitted into the first through hole 211.

[0063] It should be noted that for the rice cooker lid body 20 provided with multiple structural layers (such as the movable cover plate 22, the shielding cover plate 21 and the plastic inner cover 40 in this application), seals need to be provided between the layers to prevent steam from entering the space between different structural layers and damaging the internal components. However, multiple seals need to be provided for multiple structural layers, resulting in the problem of low assembly efficiency of the rice cooker lid body 20; and the setting of multiple seals increases the probability of sealing leakage inside the rice cooker lid body 20, affecting the service life of the microwave rice cooker.

[0064] In this embodiment, the first end of the sealing member 23 is sealed and abutted against the movable cover plate 22, the second end of the sealing member 23 is sealed and abutted against the plastic inner cover 40, and the sealing member 23 is sealingly fitted into the first through hole 211. That is, only one integrated sealing member 23 is provided between the movable cover plate 22, the shielding cover plate 21 and the plastic inner cover 40, reducing the assembly process of the rice cooker lid body 20. While improving the assembly efficiency, the contact points between the sealing member 23 and the inner structural layers of the cover plate are reduced, effectively reducing the probability of sealing leakage.

[0065] Of course, the first end of the sealing member 23 may also be in a fitting form with the second through hole 221, and the second end may also be fitted with the third through hole 41 to achieve sealing.

[0066] According to an embodiment of the present invention, in combination with Figure 3 and Figure 5 As shown, along the extending direction of the detection field of view 31, the shielding cover plate 21 can move relative to the plastic inner cover 40.

[0067] It should be noted that in the related art, the rice cooker lid body 20 and the cooking body 10 are usually connected by a hinge spring. When the rice cooker lid body 20 is closed on the cooking body 10, under the reaction force of the hinge spring, the rice cooker lid body 20 will move a small distance in the direction away from the cooking body 10, resulting in a gap between the rice cooker lid body 20 and the cooking body 10, increasing the gap between the shielding cover 11 and the shielding cover plate 21, causing microwave leakage and affecting the user's safety in use.

[0068] In this embodiment, by setting that the shielding cover plate 21 can move relative to the plastic inner cover 40, that is, when the rice cooker lid body 20 is closed on the cooking body 10, due to the acting force of the hinge spring, the plastic inner cover 40 moves in the direction away from the cooking body 10, while the shielding cover plate 21 and the movable cover plate 22 do not move relative to the cooking body 10, ensuring that the gap between the shielding cover plate 21 and the shielding cover 11 remains unchanged and avoiding microwave leakage.

[0069] In this embodiment, the sealing member 23 includes a main body portion 233 and elastic portions 234. The two elastic portions 234 are respectively located at both ends of the main body portion 233 along the extending direction. The main body portion 233 is fitted into the first through hole 211, and the two elastic portions 234 respectively abut against the movable cover plate 22 and the plastic inner cover 40. While ensuring the sealing effect of the sealing member 23, through the deformation of the elastic portions 234, it adapts to the relative movement of the shielding cover plate 21 between the plastic inner cover 40 and the movable cover plate 22.

[0070] In this embodiment, the main body portion 233 can be made of an elastic material, and being integrally formed with the elastic portions 234 is convenient for manufacturing. Of course, the main body portion 233 can also be made of a non-elastic material, such as plastic, to ensure the connection strength between the main body portion 233 and the shielding cover plate 21.

[0071] In this embodiment, in combination with Figure 3 and Figure 5 As shown, the lengths of the elastic portions 234 at both ends of the main body portion 233 along the extending direction can be different. Therefore, by changing the length of the elastic portion 234, the relative position relationship between the shielding cover plate 21 and the plastic inner cover 40 or the movable cover plate 22 can be adjusted, and the installation flexibility is higher.

[0072] According to an embodiment of the present invention, in combination withFigure 5 As shown, along the extension direction, the elastic part 234 includes at least one bending section 2341. When the elastic part 234 has the same wall thickness, compared with the case without a bending section, the elastic part 234 with the bending section 2341 has a larger deformable amount along the extension direction, which is beneficial to ensure that the elastic part 234 has a sufficient wall thickness to be in sealing contact with the movable cover plate 22 or the plastic inner cover 40 while ensuring the movable distance of the shielding cover plate 21.

[0073] According to an embodiment of the present invention, in combination with Figure 5 As shown, the opening of the bending section 2341 faces the axis direction of the channel 231. That is, the wall surface of the elastic part 234 first deviates from the axis side of the channel 231, and then deviates towards the axis of the channel 231 at the inflection point of the bending part, so that the elastic part 234 can effectively avoid the detection field of view 31 and improve the detection effect.

[0074] And the sealing component 23 is integrally formed. The main body part 233 can be made of an elastic material, and being integrally formed with the elastic part 234 is convenient for manufacturing.

[0075] According to an embodiment of the present invention, in combination with Figure 5 As shown, the wall thicknesses on both sides of the inflection point of the bending section 2341 are the first wall thickness and the second wall thickness respectively. Along the extension direction, the difference obtained by subtracting the sum of all the first wall thicknesses and the second wall thicknesses from the length of the elastic part 234 is greater than or equal to 1 mm. So that when the wall layers on both sides of the inflection point are stacked, the elastic part 234 still retains a contraction space of 1 mm, ensuring the movement effect of the shielding cover plate 21 relative to the movable cover plate 22 to avoid microwave leakage.

[0076] In this embodiment, the elastic part 234 is provided with one bending section 2341. Correspondingly, one first wall thickness and one second wall thickness are provided; when the elastic part 234 is provided with multiple bending sections 2341, it is necessary to ensure that the difference between the length of the elastic part 234 and the sum of all the first wall thicknesses and the second wall thicknesses is greater than or equal to 1 mm.

[0077] In this embodiment, in combination with Figure 5 As shown, along the extension direction, the lengths of the elastic part 234 located upstream and the elastic part 234 located downstream are different, and their corresponding first wall thicknesses and second wall thicknesses are also different. To ensure that the shielding cover plate 21 has a certain movement range at both ends along the extension direction, it is necessary to ensure that the difference between the length L1 of the elastic part 234 upstream and the sum of the first wall thickness T1 and the second wall thickness T2 is greater than 1 mm; the same is true for the elastic part 234 downstream, ensuring that the difference between the length L2 of the elastic part 234 downstream and the sum of T3 and T4 is greater than 1 mm.

[0078] It should be noted that both the lengths L1 and L2 refer to the lengths of the elastic part 234 in the natural stretched state. According to an embodiment of the present invention, in combination with Figure 3 and Figure 5 As shown, at least one of the side wall of the sealing member 23 and the inner wall of the first through hole 211 is provided with a convex ring 212, and the other is provided with a ring groove 232 that is sealingly matched with the convex ring 212. The form of the convex ring 212 and the ring groove 232 ensures the sealed connection between the sealing member 23 and the first through hole 211, and ensures the isolation of the space between the plastic inner cover 40 and the shielding cover plate 21 and the space between the shielding cover plate 21 and the movable cover plate 22. Even if any one of the spaces is invaded by steam, it will still not affect the safety of the other space.

[0079] In this embodiment, the convex ring 212 is provided on the inner wall of the first through hole 211, and the ring groove 232 is provided on the sealing member 23; alternatively, the convex ring 212 can be provided on the sealing member 23, and the ring groove 232 can be provided on the inner wall of the first through hole 211; in other embodiments, the sealing member 23 and the shielding cover plate 21 can also be in the form of being adhesively sealed.

[0080] According to an embodiment of the present invention, in combination with Figure 3 and Figure 5 As shown, an optical lens 50 is embedded in the inner wall of the channel 231. The optical lens 50 is sealingly connected to the inner wall of the channel 231 and is suitable for isolating the non-contact temperature sensor 30 and the cooking cavity 14. The sealing member 23 isolates the space on the side of the movable cover plate 22 facing away from the cooking cavity 14 from the cooking cavity 14, so that the steam in the cooking cavity 14 can only enter the channel 231. The steam entering the channel 231 is blocked by the optical lens 50, effectively preventing the steam from contacting the non-contact temperature sensor 30.

[0081] In this embodiment, a fitting groove can be provided on the inner wall of the channel 231, and the outer periphery of the optical lens 50 is sealed in the fitting groove. The sealing member 23 is pressed on the optical lens 50 and sealed between them; of course, the sealed connection can also adopt the form of adhesive connection to seal between the optical lens 50 and the sealing member 23.

[0082] According to an embodiment of the present invention, the non-contact temperature sensor 30 is an infrared temperature sensor; the optical lens 50 is a filter suitable for filtering infrared light of a specific frequency band. As described above, the far-infrared temperature sensor can measure the temperature without contacting the food, avoid damaging or contaminating the food, and has a fast response speed, and can complete the measurement of the temperature of the target object within a few milliseconds, effectively preventing the food from being overheated.

[0083] According to an embodiment of the present invention, in combination with Figure 5As shown, on the orthographic projection of the extending direction of the detection field of view 31, the projected area of the optical lens 50 is larger than the projected area of the first through hole 211, and the optical lens 50 is located on the side of the shielding cover plate 21 away from the cooking cavity 14. By utilizing the feature that the area (or diameter) of the optical lens 50 is larger than the area (or diameter) of the first through hole 211, the anti-disengagement force of the sealing member 23 is increased, preventing the sealing member 23 from falling off when the user pulls the sealing member 23, and improving its installation reliability.

[0084] According to the microwave rice cooker of the second aspect embodiment of the present invention, in combination with Figures 1 to 4 As shown, it includes a cooking body 10 and a rice cooker lid body 20 as described in the above embodiment. The cooking body 10 includes a shielding cover 11; the shielding cover plate 21 of the rice cooker lid body 20 and the shielding cover 11 enclose to form a shielding cavity 13, and the shielding cavity 13 is suitable for placing food ingredients.

[0085] The beneficial effects of the microwave rice cooker provided by the embodiment of the present invention are the same as those of the rice cooker lid body 20 of the first aspect embodiment of the present invention, and will not be elaborated here.

[0086] According to an embodiment of the present invention, the cooking body 10 further includes an inner pot 12, and the inner pot 12 and the movable cover plate 22 of the rice cooker lid body 20 enclose to form a cooking cavity 14. By providing the inner pot 12 and the movable cover plate 22, the steam generated during the heating process of the food is restricted, preventing the steam from overflowing into the shielding cavity 13 and contacting the shielding cover 11 or the shielding cover plate 21, and avoiding damage to the corresponding shielding cover 11 or shielding cover plate 21 (such as causing internal structure changes after withstanding high-temperature steam and resulting in the loss of shielding effect).

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered within the scope of the claims of the present invention.

Claims

1. A rice cooker lid (20), characterized in that, Comprising: A shielding cover plate (21), suitable for realizing microwave shielding; A non-contact temperature measurement sensor (30), at least partially located on a side of the shielding cover plate (21) facing away from the cooking cavity (14) of the rice cooker, and a first through hole (211) is provided on the shielding cover plate (21), and the first through hole (211) corresponds to the non-contact temperature measurement sensor (30); A sealing member (23), at least part of the sealing member (23) is installed in the first through hole (211), at least part of the sealing member (23) is hermetically assembled between the shielding cover plate (21) and the non-contact temperature measurement sensor (30), a channel (231) is provided on the sealing member (23), the non-contact temperature measurement sensor (30) forms a detection field of view (31), and the detection field of view (31) is suitable for passing through the channel (231), or at least part of the non-contact temperature measurement sensor (30) penetrates through the channel (231).

2. The rice cooker lid (20) according to claim 1, characterized in that, The rice cooker lid body (20) further includes a plastic inner lid (40), the plastic inner lid (40) is located on a side of the shielding cover plate (21) facing away from the cooking cavity (14), and the non-contact temperature measurement sensor (30) is arranged on the plastic inner lid (40); at least part of the sealing member (23) is hermetically connected to the plastic inner lid (40) and the shielding cover plate (21); And / or The rice cooker lid body (20) further includes a movable cover plate (22), the movable cover plate (22) is detachably connected to a side of the shielding cover plate (21) facing the cooking cavity (14), a second through hole (221) corresponding to the non-contact temperature measurement sensor (30) is provided on the movable cover plate (22), the second through hole (221) is suitable for the detection field of view (31) to pass through, and the movable cover plate (22) is suitable for enclosing with the inner pot (12) of the microwave rice cooker to form the cooking cavity (14); at least part of the sealing member (23) is hermetically assembled between the movable cover plate (22) and the shielding cover plate (21).

3. The rice cooker lid (20) according to claim 2, characterized in that, When the rice cooker lid body (20) includes the plastic inner lid (40) and the movable cover plate (22), a first end of the sealing member (23) is hermetically abutted against the movable cover plate (22), a second end of the sealing member (23) is hermetically abutted against the plastic inner lid (40), and the sealing member (23) is hermetically fitted in the first through hole (211).

4. The rice cooker lid body (20) according to claim 3, characterized in that, Along the extending direction of the detection field of view (31), the shielding cover plate (21) can move relative to the plastic inner lid (40); The sealing member (23) includes a main body portion (233) and two elastic portions (234), the two elastic portions (234) are respectively located at two ends of the main body portion (233) along the extending direction, the main body portion (233) is fitted in the first through hole (211), and the two elastic portions (234) respectively abut against the movable cover plate (22) and the plastic inner lid (40).

5. The rice cooker lid body (20) according to claim 4, characterized in that, Along the extending direction, the elastic portion (234) includes at least one bending segment (2341).

6. The rice cooker lid (20) according to claim 5, characterized in that, The opening of the bent section (2341) faces the axial direction of the channel (231), and the sealing member is an integrally formed member.

7. The rice cooker lid body (20) according to claim 5, characterized in that, The wall thicknesses on both sides of the inflection point of the bent section (2341) are the first wall thickness and the second wall thickness respectively. Along the extension direction, the difference obtained by subtracting the sum of all the first wall thicknesses and the second wall thicknesses from the length of the elastic part (234) is greater than or equal to 1 millimeter.

8. The rice cooker lid body (20) according to claim 1, characterized in that, At least one of the side wall of the sealing member (23) and the inner wall of the first through hole (211) is provided with a convex ring (212), and the other is provided with an annular groove (232) that is sealingly fitted with the convex ring (212).

9. The rice cooker lid body (20) according to any one of claims 1 to 8, characterized in that, An optical lens (50) is embedded in the inner wall of the channel (231). The optical lens (50) is sealingly connected to the inner wall of the channel (231) and is suitable for isolating the non-contact temperature sensor (30) and the cooking cavity (14).

10. The rice cooker lid (20) according to claim 9, characterized in that, The non-contact temperature sensor (30) is an infrared temperature sensor; the optical lens (50) is a filter suitable for filtering infrared light in a specific frequency band.

11. The rice cooker lid body (20) according to claim 9, characterized in that, On the positive projection of the extension direction of the detection field of view (31), the projected area of the optical lens (50) is larger than the projected area of the first through hole (211); The optical lens is located on the side of the shielding cover plate facing away from the cooking cavity, or the optical lens is located on the side of the shielding cover plate close to the cooking cavity.

12. A microwave rice cooker, characterized in that, Comprising: A cooking body (10) including a shielding cover (11); The rice cooker lid body (20) according to any one of claims 1 to 11, wherein the shielding cover plate (21) of the rice cooker lid body (20) and the shielding cover (11) enclose a shielding cavity (13), and the shielding cavity (13) is suitable for placing food ingredients.

13. The microwave rice cooker according to claim 12, wherein, The cooking body (10) further includes: An inner pot (12), and the inner pot (12) and the movable cover plate (22) of the rice cooker lid body (20) enclose the cooking cavity (14).

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