Microwave shielding device, door body assembly, cover body and cooking utensil

Abstract

The invention provides a microwave shielding device, a door body assembly, a cover body and a cooking utensil, the microwave shielding device is used in the cooking utensil, the cooking utensil comprises a box body or a base, and the microwave shielding device comprises a plurality of shielding parts; the mounting plate assembly is provided with a plurality of accommodating cavities, the plurality of shielding parts are mounted in the corresponding accommodating cavities in a one-to-one correspondence manner, the mounting plate assembly is provided with a plurality of openings, the plurality of openings and the plurality of accommodating cavities are arranged in a one-to-one correspondence manner, and at least one part of any shielding part can extend out of the opening to be in contact with the box body or the base.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a microwave shielding device, a door assembly, a cover body and a cooking utensil. Background Art

[0002] In the prior art, microwave ovens usually have choke teeth on the door to prevent wave leakage. However, the door body with a choke tooth structure needs to have its edges widened and thickened to accommodate the choke teeth, which increases the size of the microwave oven. In addition, the distance between the choke tooth and the front plate of the cavity cannot be too large, otherwise the wave will leak, and the distance between the choke tooth and the front plate of the cavity cannot be too small, which will make the door body difficult to assemble. Therefore, the door body with a choke tooth structure is difficult to assemble and the product qualification rate is low. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first object of the present invention is to provide a microwave shielding device.

[0005] The second object of the present invention is to provide a door assembly.

[0006] The third objective of the present invention is to provide a cover.

[0007] A fourth object of the present invention is to provide a cooking utensil.

[0008] A fifth object of the present invention is to provide a cooking utensil.

[0009] To achieve at least one of the above-mentioned purposes, according to a first aspect of the present invention, a microwave shielding device is proposed, which is used in a cooking utensil. The cooking utensil includes a box body or a base, and the microwave shielding device includes: a plurality of shielding members; a mounting plate assembly, the mounting plate assembly having a plurality of accommodating cavities, the plurality of shielding members being installed in the corresponding accommodating cavities one by one, the mounting plate assembly having a plurality of openings, the plurality of openings being arranged in a one-to-one correspondence with the plurality of accommodating cavities, and at least a portion of any shielding member being able to extend out of the opening and contact the box body or the base.

[0010] The microwave shielding device proposed in the present application can be used in a cooking utensil, and the cooking utensil can have a variety of structural forms. The microwave shielding device can be used in a cooking utensil including a box body and a door body, and can also be used in a cooking utensil including a base and a cover body. When the microwave shielding device is used in a cooking utensil including a box body and a door body, the microwave shielding device is used for the door body, and when the microwave shielding device is used in a cooking utensil including a base and a cover body, the microwave shielding device is used for the cover body. The structure of the microwave shielding device is defined below.

[0011] The microwave shielding device includes a plurality of shielding members and a mounting plate assembly, wherein the mounting plate assembly has a plurality of accommodating cavities, the number of which is the same as the number of shielding members, and the shielding members are installed in the corresponding accommodating cavities. The mounting plate assembly has a plurality of openings, the number of which is the same as the number of accommodating cavities, and the openings and accommodating cavities are arranged one by one, and at least a portion of any shielding member can extend out of the opening and contact the box body or the base. In the cooking utensils in the prior art that are not provided with a microwave shielding device, there is a long through gap between the door body and the box body or between the cover body and the base. In the microwave shielding device proposed in the present application, a plurality of accommodating cavities are arranged in sequence along the edge of the mounting plate assembly, so that a plurality of shielding members are arranged in sequence along the edge of the mounting plate, and when the shielding members contact the box body or the base, the plurality of shielding members divide the through gap between the door body and the box body or the long through gap between the cover body and the base into a plurality of shorter gaps, and each shorter gap is separated by the shielding member. In this way, the cut-off frequency of microwaves that can be shielded by the microwave shielding device can be increased, so that the microwave shielding device can prevent the microwaves in the cooking utensil from propagating to the outside and prevent the microwaves from leaking.

[0012] Compared with the structure of the prior art that uses choke teeth to prevent leakage waves, the microwave shielding device proposed in the present application is smaller in size. When the microwave shielding device is used in the door body of the cooking utensil, the door body can be made thinner and lighter, thereby reducing the size of the cooking utensil and increasing the effective volume ratio of the cooking utensil, which is conducive to the miniaturization and lightweight design of the product. In addition, the microwave shielding device proposed in the present application can make the shielding part contact with the box body or the base even when the gap between the door body and the box body or the cover body and the base is large. The microwave shielding device can normally achieve the function of preventing leakage waves, reduce the assembly requirements of the cooking utensil, and improve the qualified rate of the product.

[0013] The microwave shielding device according to the present invention may also have the following distinguishing technical features:

[0014] In some technical solutions, optionally, the wavelength of the microwaves generated by the cooking appliance is λ, and the center distance between any two adjacent openings is λ / 4.

[0015] In this technical solution, some dimensions of the microwave shielding device are limited. Specifically, the wavelength of the microwave generated by the cooking utensil is λ, and the center distance between any two adjacent openings is λ / 4. It can be understood that the shielding member extends from the corresponding opening and contacts the box or the base. By limiting the center distance between any two adjacent openings, the distance between the contact points of any two adjacent shielding members and the box or the base can be limited, that is, the distance between the contact points of any two adjacent shielding members and the box or the base satisfies λ / 4. In this case, the cutoff frequency of the microwaves that can be shielded by the microwave shielding device is greater than the frequency of the microwaves generated by the cooking utensil, so that the microwave shielding device can shield the microwaves in the cooking utensil and prevent microwave leakage.

[0016] In some technical schemes, optionally, the mounting plate assembly includes: a shielding member mounting plate; a plurality of mounting members, arranged on the shielding member mounting plate; a shielding plate, connected to the shielding member mounting plate, a plurality of openings being arranged on the shielding plate, the mounting members protruding from the shielding member mounting plate in a direction away from the shielding plate, and the shielding plate and the mounting members together form a accommodating cavity.

[0017] In this technical solution, the structure of the mounting plate assembly is defined. The mounting plate assembly includes a shielding component mounting plate, a plurality of mounting components and a shielding plate, wherein the plurality of mounting components are arranged on the shielding component mounting plate, the mounting components are shell-shaped structures, the shielding plate is connected to the mounting plate, the mounting components protrude from the shielding component mounting plate in a direction away from the shielding plate, the shielding plate and the mounting components together form a receiving cavity, and the shielding component is installed in the corresponding receiving cavity. All openings are arranged on the shielding plate, and the plurality of openings are arranged one-to-one with the plurality of mounting components. In this way, the installation and positioning of the shielding component can be achieved. When assembling the mounting plate assembly, the shielding component can be installed in the corresponding mounting component first, and then the shielding plate can be connected to the shielding component mounting plate.

[0018] When the microwave shielding device is in a horizontal state and the opening of the microwave shielding device is facing downward, the shielding member extends out of the corresponding opening under the action of its own gravity and contacts the box body or the base to achieve the technical effect of the microwave shielding device to prevent leakage waves.

[0019] In some technical schemes, optionally, the microwave shielding device also includes: a limiting plate located between the shielding component mounting plate and the shielding plate; a plurality of limiting components arranged on the limiting plate, the plurality of limiting components being arranged one-to-one corresponding to the plurality of accommodating cavities, the limiting components being located in the corresponding accommodating cavities, and the limiting components being used to limit the corresponding shielding components so that at least a portion of the shielding components can extend out of the opening.

[0020] In this technical solution, the structure of the microwave shielding device is further limited. For microwave shielding devices that cannot be used in a horizontally placed environment, it is necessary to set up a structure that can press the shielding member so that a part of the shielding member can extend out of the opening. The microwave shielding device also includes a limit plate and a plurality of limit members, wherein the limit plate is located between the shielding member mounting plate and the shielding plate, and the plurality of limit members are connected to the limit plate. The number of limit members is the same as the number of accommodating cavities, and the plurality of limit members are arranged one-to-one with the plurality of accommodating cavities, and the limit members are located in the corresponding accommodating cavities. The limit member can limit the shielding member located in the corresponding accommodating cavity so that a part of the shielding member can extend out of the opening, ensuring that the shielding member can contact the box or the base, so that the microwave shielding device can play a role in preventing leakage waves.

[0021] In some technical solutions, optionally, the limiting member extends in a direction away from the opening, at least a portion of the limiting member is located on a side of the shielding member away from the opening, and the limiting member is elastic to press the shielding member along a side toward the opening.

[0022] In this technical solution, the limiter is defined. The limiter extends in a direction away from the opening, and at least a portion of any limiter is located on a side of the corresponding shielding member away from the opening. The shielding member presses the limiter in a direction away from the opening. The limiter is elastic, so that the limiter can press the shielding member in a direction toward the opening, so that the shielding member fits tightly to the opening, and ensures that a portion of the shielding member can extend out of the opening. In order to make the limiter elastic, the limiter can be made of a metal plate with good elasticity.

[0023] By using a limiter to press the shielding member along the side facing the opening, it can be ensured that whether the shielding member is placed horizontally or at an angle to the horizontal plane, the shielding member can extend out of the opening and contact the box or base of the cooking utensil, ensuring that the microwave shielding device can normally prevent leakage waves.

[0024] In some technical solutions, optionally, a plurality of mounting members are arranged in sequence along an edge of the shielding member mounting plate.

[0025] In this technical solution, the arrangement of the mounting parts is limited. Specifically, multiple mounting parts are arranged in sequence along the edge of the shielding part mounting plate. In this way, multiple shielding parts can be sequentially contacted with the box body or the base of the cooking appliance along the edge of the shielding part mounting plate, so as to divide the gap between the box body and the door body assembly or the gap between the base and the cover into multiple sections, thereby achieving the technical effect of preventing leakage waves.

[0026] In some technical solutions, optionally, the maximum cross-sectional dimension of the opening is smaller than the maximum cross-sectional dimension of the corresponding shielding member.

[0027] In this technical solution, the relationship between the size of the opening and the size of the shielding component is defined. Specifically, the maximum cross-sectional dimension of the opening is smaller than the maximum cross-sectional dimension of the corresponding shielding component. Understandably, if the size of the opening is larger than the size of the shielding component, it will cause the shielding component to fall off from the opening. In order to prevent the shielding component from falling out of the opening and enable the shielding component to be securely installed in the accommodating cavity, the present application defines the relationship between the size of the opening and the size of the shielding component. Specifically, the maximum cross-sectional dimension of the opening is smaller than the maximum cross-sectional dimension of the shielding component. In this way, the shielding component can be prevented from falling off from the opening, thereby improving the reliability of the product.

[0028] Specifically, the shielding member can be configured in various shapes, such as a spherical shape, a cylindrical shape, an olive shape, or the like.

[0029] In some technical solutions, optionally, the shielding member and the shielding plate are made of metal material.

[0030] In this technical solution, the materials of the shielding member and the shielding plate are limited. Specifically, the shielding member and the shielding plate are made of metal materials. In this way, the shielding member and the shielding plate can have the effect of shielding microwaves, and the strength of the shielding plate can be improved, thereby improving the overall strength of the microwave shielding device and improving the reliability of the product.

[0031] In some technical solutions, optionally, the microwave shielding device further includes: a plurality of connectors for connecting the shielding component mounting plate and the shielding plate.

[0032] In this technical solution, the structure of the microwave shielding device is further defined. Specifically, the microwave shielding device also includes a plurality of connectors, which are used to connect the shielding component mounting plate to the shielding plate. Specifically, the shielding component mounting plate and the shielding plate are both provided with through holes adapted to the connectors, and the connectors may be screws and nuts, and the connectors pass through the through holes on the shielding component mounting plate and the shielding plate to connect the shielding component mounting plate to the shielding plate. When assembling the microwave shielding device, a plurality of shielding components may be first installed in the corresponding accommodating cavities, and then the shielding plate may be buckled onto the shielding component mounting plate, and then the shielding component mounting plate may be connected to the shielding plate through the connector. If the microwave shielding device also includes a limit plate, the limit plate is provided with a plurality of through holes adapted to the connector.

[0033] In some technical solutions, optionally, the shielding plate has a limiting protrusion, the shielding component mounting plate has a limiting opening adapted to the limiting protrusion, and the limiting protrusion extends into the limiting opening.

[0034] In this technical solution, the structures of the shielding plate and the shielding component mounting plate are further defined. Specifically, the shielding plate has a limiting protrusion, and the shielding component mounting plate has a limiting opening adapted to the limiting protrusion. When the shielding component mounting plate is connected to the shielding plate, the limiting protrusion extends into the limiting opening, and the two are adapted to each other to define the relative position of the shielding plate and the shielding component mounting plate, so as to facilitate the installation of the shielding plate and the shielding component mounting plate.

[0035] The second aspect of the present invention further provides a door assembly, comprising the microwave shielding device provided in the first aspect of the present invention.

[0036] The door assembly provided in the second aspect of the present invention comprises the microwave shielding device proposed in the first aspect of the present invention, and therefore has all the beneficial effects of the microwave shielding device.

[0037] The third aspect of the present invention further provides a cover body, comprising the microwave shielding device provided in the first aspect of the present invention.

[0038] The cover provided in the third aspect of the present invention comprises the microwave shielding device provided in the first aspect of the present invention, and therefore has all the beneficial effects of the microwave shielding device.

[0039] In a possible technical solution, optionally, the cover body further includes: a shell, and the microwave shielding device is connected to an edge of the shell.

[0040] In this technical solution, the structure of the cover is further defined. The cover also includes a shell, which includes a top plate and a plurality of side plates, the plurality of side plates are respectively connected to the edges of the top plate, the plurality of side plates are sequentially connected, and a microwave shielding device is connected to a side of the side plate away from the top plate. There may be a plurality of microwave shielding devices, and the plurality of microwave shielding devices are arranged in a one-to-one correspondence with the plurality of side plates.

[0041] The fourth aspect of the present invention also proposes a cooking utensil, comprising: the door assembly proposed in the second aspect of the present invention; a box body, comprising a first cooking cavity, the door assembly being movably connected to the box body, and the door assembly being used to open or close the first cooking cavity.

[0042] The cooking utensil proposed in the present application comprises a door assembly and a box body, wherein the box body comprises a first cooking cavity, the door assembly is movably connected to the box body, and the door assembly is used to open or close the first cooking cavity. The door assembly comprises a microwave shielding device, which is arranged toward the box body. When the door assembly closes the cooking cavity, the shielding member of the microwave shielding device contacts the box body to prevent microwave leakage in the first cooking cavity. The safety of the cooking utensil is improved.

[0043] The cooking appliance provided in the fourth aspect of the present invention comprises the door assembly proposed in the second aspect of the present invention, and therefore has all the beneficial effects of the door assembly.

[0044] The fifth aspect of the present invention further proposes a cooking utensil, comprising: the cover body proposed in the third aspect of the present invention; a base, the cover body being detachably buckled to the base, and when the cover body is buckled to the base, the shielding part of the cover body abuts against the base.

[0045] The cooking utensil proposed in the present application includes a cover body and a base, and the cover body can be detachably buckled on the base. When the cover body is buckled on the base, the cover body and the base together enclose a second cooking cavity. A microwave component is provided in the base, and the microwave component can radiate microwaves into the second cooking cavity to perform microwave heating on the food in the second cooking cavity. When the cooking utensil performs microwave heating on the food, the user needs to buckle the cover body to the base to prevent the microwaves in the second cooking cavity from overflowing. When the cover body is buckled on the base, the shielding member of the cover body contacts the base to prevent the microwaves in the second cooking cavity from leaking. The safety of the cooking utensil is improved.

[0046] The cooking utensil provided in the fifth aspect of the present invention comprises the cover body provided in the third aspect of the present invention, and thus has all the beneficial effects of the cover body.

[0047] Cooking appliances include microwave ovens or microwave-induction cookers.

[0048] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0050] Figure 1 One of the structural schematic diagrams of a microwave shielding device according to an embodiment of the present invention is shown;

[0051] Figure 2 Shows Figure 1 Sectional view of section AA;

[0052] Figure 3 Shows Figure 2 A partial enlarged view of the middle C area;

[0053] Figure 4 Shows Figure 1 Sectional view of the middle BB section;

[0054] Figure 5 Shows Figure 4 A partial enlarged view of the D area in the middle;

[0055] Figure 6 A second structural schematic diagram of a microwave shielding device according to an embodiment of the present invention is shown;

[0056] Figure 7 A third structural schematic diagram of a microwave shielding device according to an embodiment of the present invention is shown;

[0057] Figure 8 A fourth structural schematic diagram of a microwave shielding device according to an embodiment of the present invention is shown;

[0058] Fig. 9 One of the exploded views of a microwave shielding device according to an embodiment of the present invention is shown;

[0059] Fig.10 A fifth structural schematic diagram of a microwave shielding device according to an embodiment of the present invention is shown;

[0060] Fig.11 A second exploded view of a microwave shielding device according to an embodiment of the present invention is shown;

[0061] Fig.12 A sixth structural schematic diagram showing a microwave shielding device according to an embodiment of the present invention;

[0062] Fig.13 Shows Fig.12 Cross-sectional view of section EE;

[0063] Fig.14 Shows Fig.13 A partial enlarged view of the middle G area;

[0064] Fig.15 Shows Fig.12 Cross-sectional view of the FF section;

[0065] Fig.16 Shows Fig.15 A partial enlarged view of the middle H region;

[0066] Fig.17 A third exploded view of a microwave shielding device according to an embodiment of the present invention is shown;

[0067] Fig.18 A fourth exploded view of a microwave shielding device according to an embodiment of the present invention is shown;

[0068] Fig.19 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0069] Fig. 20 Shows Fig.19 Sectional view of section II;

[0070] Fig.21 A second structural schematic diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0071] Fig. 22 A third structural schematic diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0072] Fig.23 A fourth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0073] Fig.24 A fifth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0074] Fig.25 One of the exploded views of a cooking appliance showing one embodiment of the present invention;

[0075] Fig.26 A second exploded view of a cooking appliance according to an embodiment of the present invention is shown;

[0076] Fig. 27 A sixth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0077] Fig.28 A third exploded view of a cooking appliance according to an embodiment of the present invention is shown;

[0078] Fig.29 A fourth exploded view of a cooking appliance according to an embodiment of the present invention is shown.

[0079] in, Figures 1 to 29 The corresponding relationship between the reference numerals and the component names is as follows:

[0080] 100 microwave shielding device, 110 shielding member, 120 mounting plate assembly, 121 accommodating cavity, 122 opening, 123 shielding member mounting plate, 124 mounting member, 125 shielding plate, 126 limiting protrusion, 127 limiting opening, 130 limiting plate, 131 limiting member, 200 cover body, 210 shell, 211 top plate, 212 side plate, 300 cooking utensil, 310 base, 320 second cooking cavity. DETAILED DESCRIPTION

[0081] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0082] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0083] Refer to the following Figures 1 to 29The microwave shielding device 100 , the cover body 200 , the door assembly, the cooking utensil and the cooking utensil 300 provided according to some embodiments of the present invention are described.

[0084] In one embodiment according to the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the present invention proposes a microwave shielding device 100, which is used in a cooking utensil. The cooking utensil includes a box body or a base. The microwave shielding device 100 includes: a plurality of shielding members 110; a mounting plate assembly 120, the mounting plate assembly 120 has a plurality of accommodating cavities 121, and the plurality of shielding members 110 are installed in the corresponding accommodating cavities 121 one by one. The mounting plate assembly 120 has a plurality of openings 122, and the plurality of openings 122 are arranged in a one-to-one correspondence with the plurality of accommodating cavities 121. At least a portion of any shielding member 110 can extend out of the opening 122 and contact the box body or the base.

[0085] The microwave shielding device 100 proposed in the present application can be used in a cooking utensil, and the cooking utensil can have a variety of structural forms. The microwave shielding device 100 can be used in a cooking utensil including a box body and a door body, and can also be used in a cooking utensil including a base and a cover body 200. When the microwave shielding device 100 is used in a cooking utensil including a box body and a door body, the microwave shielding device 100 is used for the door body, and when the microwave shielding device 100 is used in a cooking utensil including a base and a cover body 200, the microwave shielding device 100 is used for the cover body 200. The structure of the microwave shielding device 100 is defined below.

[0086] The microwave shielding device 100 includes a plurality of shielding members 110 and a mounting plate assembly 120, wherein the mounting plate assembly 120 has a plurality of accommodating cavities 121, the number of which is the same as the number of the shielding members 110, and the shielding members 110 are installed in the corresponding accommodating cavities 121. The mounting plate assembly 120 has a plurality of openings 122, the number of which is the same as the number of the accommodating cavities 121, and the openings 122 are arranged one-to-one with the accommodating cavities 121, and at least a portion of any shielding member 110 can extend out of the opening 122 and contact the box or the base. In the cooking utensils in the prior art that are not provided with the microwave shielding device 100, there is a long through gap between the door body and the box body or between the cover body 200 and the base. The microwave shielding device 100 proposed in the present application has a plurality of accommodating cavities 121 arranged in sequence along the edge of the mounting plate assembly 120, so that a plurality of shielding members 110 are arranged in sequence along the edge of the mounting plate. When the shielding members 110 are in contact with the box body or the base, the plurality of shielding members 110 divide the through gap between the door body and the box body or the through long gap between the cover body 200 and the base into a plurality of shorter gaps, and each shorter gap is separated by the shielding members 110. In this way, the cut-off frequency of the microwaves that can be shielded by the microwave shielding device 100 can be increased, so that the microwave shielding device 100 can prevent the microwaves in the cooking utensil from propagating to the outside and prevent the microwaves from leaking.

[0087] Compared with the structure of the prior art that uses choke teeth to prevent leakage waves, the microwave shielding device 100 proposed in the present application is smaller in size. When the microwave shielding device 100 is used in the door body of a cooking utensil, the door body can be made thinner and lighter, thereby reducing the size of the cooking utensil and increasing the effective volume ratio of the cooking utensil, which is conducive to the miniaturization and lightweight design of the product. Moreover, the microwave shielding device 100 proposed in the present application can make the shielding member 110 contact with the box body or the base even when the gap between the door body and the box body or the cover body 200 and the base is large, and the microwave shielding device can normally achieve the function of preventing leakage waves, reducing the assembly requirements of the cooking utensil and improving the qualified rate of the product.

[0088] In some embodiments, optionally, the wavelength of the microwaves generated by the cooking appliance is λ, and the center distance between any two adjacent openings 122 is λ / 4.

[0089] In this embodiment, some dimensions of the microwave shielding device 100 are limited. Specifically, the wavelength of the microwave generated by the cooking utensil is λ, and the center distance between any two adjacent openings 122 is λ / 4. It can be understood that the shielding member 110 extends from the corresponding opening 122 and contacts the box or the base. By limiting the center distance between any two adjacent openings 122, the distance between the contact points of any two adjacent shielding members 110 and the box or the base can be limited, that is, the distance between the contact points of any two adjacent shielding members 110 and the box or the base satisfies λ / 4. In this case, the cut-off frequency of the microwaves that can be shielded by the microwave shielding device 100 is greater than the frequency of the microwaves generated by the cooking utensil, so that the microwave shielding device 100 can shield the microwaves in the cooking utensil and prevent microwave leakage.

[0090] In some embodiments, optionally, Figure 3 , Figure 5 , Fig. 9 and Fig.11 As shown, the mounting plate assembly 120 includes: a shielding component mounting plate 123; a plurality of mounting components 124, which are arranged on the shielding component mounting plate; a shielding plate 125, which is connected to the shielding component mounting plate 123, a plurality of openings 122 are arranged on the shielding plate 125, and the mounting components 124 protrude from the shielding component mounting plate 123 in a direction away from the shielding plate 125, and the shielding plate 125 and the mounting components 124 together form a accommodating cavity 121.

[0091] In this embodiment, the structure of the mounting plate assembly 120 is defined. The mounting plate assembly 120 includes a shielding member mounting plate 123, a plurality of mounting members 124 and a shielding plate 125, wherein the plurality of mounting members 124 are arranged on the shielding member mounting plate 123, the mounting members 124 are shell-shaped structures, the shielding plate 125 is connected to the mounting plate, the mounting members 124 protrude from the shielding member mounting plate 123 in a direction away from the shielding plate 125, the shielding plate 125 and the mounting members 124 enclose a receiving cavity 121, and the shielding member 110 is installed in the corresponding receiving cavity 121. The openings 122 are all arranged on the shielding plate 125, and the plurality of openings 122 are arranged one by one with the plurality of mounting members 124. In this way, the installation and positioning of the shielding member 110 can be realized. When assembling the mounting plate assembly 120, the shielding member 110 can be first installed in the corresponding mounting member 124, and then the shielding plate 125 can be connected to the shielding member mounting plate 123.

[0092] When the microwave shielding device 100 is in a horizontal state and the opening 122 of the microwave shielding device 100 faces downward, the shielding member 110 extends out of the corresponding opening 122 under the action of its own gravity and contacts the box or the base to achieve the technical effect of the microwave shielding device 100 preventing leakage waves.

[0093] In some embodiments, optionally, Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 and Fig.18 As shown, the microwave shielding device 100 also includes: a limiting plate 130, located between the shielding component mounting plate 123 and the shielding plate 125; a plurality of limiting members 131, arranged on the limiting plate 130, the plurality of limiting members 131 are arranged one-to-one corresponding to the plurality of accommodating cavities 121, the limiting members 131 are located in the corresponding accommodating cavities 121, and the limiting members 131 are used to limit the corresponding shielding component 110 so that at least a portion of the shielding component 110 can extend out of the opening 122.

[0094] In this embodiment, the structure of the microwave shielding device 100 is further defined. For the microwave shielding device 100 that cannot be used in a horizontal placement environment, it is necessary to set a structure that can press the shielding member 110 so that a part of the shielding member 110 can extend out of the opening 122. The microwave shielding device 100 also includes a limit plate 130 and a plurality of limit members 131, wherein the limit plate 130 is located between the shielding member mounting plate 123 and the shielding plate 125, and the plurality of limit members 131 are connected to the limit plate 130. The number of limit members 131 is the same as the number of accommodating cavities 121. The plurality of limit members 131 are arranged one by one with the plurality of accommodating cavities 121, and the limit members 131 are located in the corresponding accommodating cavities 121. The limit member 131 can limit the shielding member 110 located in the corresponding accommodating cavity 121, so that the shielding member 110 can partially extend out of the opening 122, ensuring that the shielding member 110 can contact the box or the base, so that the microwave shielding device 100 can play a role in preventing leakage waves.

[0095] In some embodiments, optionally, Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 and Fig.18 As shown, the limiting member 131 extends in a direction away from the opening 122 , and at least a portion of the limiting member 131 is located on a side of the shielding member 110 away from the opening 122 . The limiting member 131 is elastic to press the shielding member 110 along a side toward the opening 122 .

[0096] In this embodiment, the limiting member 131 is limited. The limiting member 131 extends in a direction away from the opening 122, and at least a portion of any limiting member 131 is located on a side of the corresponding shielding member 110 away from the opening 122. The shielding member 110 presses the limiting member 131 in a direction away from the opening 122. The limiting member 131 is elastic, so that the limiting member 131 can press the shielding member 110 in a direction toward the opening 122, so that the shielding member 110 fits tightly to the opening 122, and ensures that a portion of the shielding member 110 can extend out of the opening 122. In order to make the limiting member 131 elastic, the limiting member 131 can be made of a metal plate with good elasticity.

[0097] By using the limiter 131 to press the shielding member 110 along the side facing the opening 122, it can be ensured that no matter the shielding member 110 is placed horizontally or at an angle to the horizontal plane, the shielding member 110 can extend out of the opening 122 and contact the box or base of the cooking utensil, thereby ensuring that the microwave shielding device 100 can normally prevent leakage waves.

[0098] In some embodiments, optionally, Figure 8 and Fig.10 As shown, a plurality of mounting members 124 are sequentially arranged along the edge of the shielding member mounting plate 123 .

[0099] In this embodiment, the arrangement of the mounting members 124 is limited. Specifically, a plurality of mounting members 124 are sequentially arranged along the edge of the shielding member mounting plate 123. In this way, the plurality of shielding members 110 can sequentially contact the box body or the base of the cooking utensil along the edge of the shielding member mounting plate 123, so as to divide the gap between the box body and the door assembly or the gap between the base and the cover 200 into multiple sections, thereby achieving the technical effect of preventing leakage waves.

[0100] In some embodiments, optionally, the maximum cross-sectional dimension of the opening 122 is smaller than the maximum cross-sectional dimension of the corresponding shield 110 .

[0101] In this embodiment, the relationship between the size of the opening 122 and the size of the shielding member 110 is defined. Specifically, the maximum cross-sectional dimension of the opening 122 is smaller than the maximum cross-sectional dimension of the corresponding shielding member 110. It is understandable that if the size of the opening 122 is larger than the size of the shielding member 110, the shielding member 110 will fall off from the opening 122. In order to prevent the shielding member 110 from falling off from the opening 122 and to enable the shielding member 110 to be firmly installed in the accommodating cavity 121, the present application defines the relationship between the size of the opening 122 and the size of the shielding member 110. Specifically, the maximum cross-sectional dimension of the opening 122 is smaller than the maximum cross-sectional dimension of the shielding member 110. In this way, the shielding member 110 can be prevented from falling off from the opening 122, thereby improving the reliability of the product.

[0102] Specifically, the shielding member 110 may be configured in various shapes, such as a spherical shape, a cylindrical shape, or an olive shape.

[0103] In some embodiments, optionally, the shielding member 110 and the shielding plate 125 are made of metal material.

[0104] In this embodiment, the materials of the shielding member 110 and the shielding plate 125 are limited. Specifically, the shielding member 110 and the shielding plate 125 are made of metal materials. In this way, the shielding member 110 and the shielding plate 125 can have the effect of shielding microwaves, and the strength of the shielding plate 125 can be improved, thereby improving the overall strength of the microwave shielding device 100 and improving the reliability of the product.

[0105] In some embodiments, optionally, the microwave shielding device 100 further includes: a plurality of connectors for connecting the shielding member mounting plate 123 and the shielding plate 125 .

[0106] In this embodiment, the structure of the microwave shielding device 100 is further defined. Specifically, the microwave shielding device 100 also includes a plurality of connectors, which are used to connect the shielding member mounting plate 123 with the shielding plate 125. Specifically, the shielding member mounting plate 123 and the shielding plate 125 are both provided with through holes adapted to the connectors, and the connectors may be screws and nuts, and the connectors pass through the through holes on the shielding member mounting plate 123 and the shielding plate 125 to connect the shielding member mounting plate 123 with the shielding plate 125. When assembling the microwave shielding device 100, the plurality of shielding members 110 may be first installed in the corresponding accommodating cavity 121, and then the shielding plate 125 may be buckled on the shielding member mounting plate 123, and then the shielding member mounting plate 123 may be connected to the shielding plate 125 through the connector. If the microwave shielding device 100 also includes a limiting plate 130, the limiting plate 130 is provided with a plurality of through holes adapted to the connectors.

[0107] In some embodiments, optionally, Fig. 9 , Fig.11 , Fig.17 and Fig.18 As shown, the shielding plate 125 has a limiting protrusion 126 , and the shielding component mounting plate 123 has a limiting opening 127 adapted to the limiting protrusion 126 , and the limiting protrusion 126 extends into the limiting opening 127 .

[0108] In this embodiment, the structures of the shielding plate 125 and the shielding component mounting plate 123 are further defined. Specifically, the shielding plate 125 has a limiting protrusion 126, and the shielding component mounting plate 123 has a limiting opening 127 adapted to the limiting protrusion 126. When the shielding component mounting plate 123 is connected to the shielding plate 125, the limiting protrusion 126 extends into the limiting opening 127, and the two are adapted to each other to define the relative position of the shielding plate 125 and the shielding component mounting plate 123, so as to facilitate the installation of the shielding plate 125 and the shielding component mounting plate 123.

[0109] The second aspect of the present invention further provides a door assembly, comprising the microwave shielding device 100 provided in the first aspect of the present invention.

[0110] The door assembly provided in the second aspect of the present invention comprises the microwave shielding device 100 provided in the first aspect of the present invention, and therefore has all the beneficial effects of the microwave shielding device 100.

[0111] The third aspect of the present invention further provides a cover 200 , comprising the microwave shielding device 100 provided in the first aspect of the present invention.

[0112] The cover body 200 provided in the third aspect of the present invention comprises the microwave shielding device 100 provided in the first aspect of the present invention, and thus has all the beneficial effects of the microwave shielding device 100 .

[0113] In a possible embodiment, optionally, as Fig.25 , Fig.26 and Fig.28 As shown, the cover 200 further includes: a shell 210 , and the microwave shielding device 100 is connected to the edge of the shell 210 .

[0114] In this embodiment, the structure of the cover body 200 is further defined. The cover body 200 also includes a shell 210, and the shell 210 includes a top plate 211 and a plurality of side plates 212, the plurality of side plates 212 are respectively connected to the edges of the top plate 211, the plurality of side plates 212 are sequentially connected, and the microwave shielding device 100 is connected to the side of the side plate 212 away from the top plate 211. There can be a plurality of microwave shielding devices 100, and the plurality of microwave shielding devices 100 are arranged in a one-to-one correspondence with the plurality of side plates 212.

[0115] The fourth aspect of the present invention also proposes a cooking utensil, comprising: the door assembly proposed in the second aspect of the present invention; a box body, comprising a first cooking cavity, the door assembly being movably connected to the box body, and the door assembly being used to open or close the first cooking cavity.

[0116] The cooking utensil proposed in the present application comprises a door assembly and a box body, the box body comprises a first cooking cavity, the door assembly is movably connected to the box body, and the door assembly is used to open or close the first cooking cavity. The door assembly comprises a microwave shielding device 100, which is arranged toward the box body. When the door assembly closes the cooking cavity, the shielding member 110 of the microwave shielding device contacts the box body to prevent microwave leakage in the first cooking cavity. The safety of the cooking utensil is improved.

[0117] The cooking appliance provided in the fourth aspect of the present invention comprises the door assembly proposed in the second aspect of the present invention, and therefore has all the beneficial effects of the door assembly.

[0118] like Fig.19 , Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 and Fig.29 As shown, the fifth aspect of the present invention further proposes a cooking utensil 300, comprising: the cover body 200 proposed in the third aspect of the present invention; a base 310, the cover body 200 can be detachably buckled on the base 310, and when the cover body 200 is buckled on the base 310, the shielding member 110 of the cover body 200 is against the base 310.

[0119] The cooking utensil 300 proposed in the present application includes a cover 200 and a base 310, and the cover 200 can be detachably buckled on the base 310. When the cover 200 is buckled on the base 310, the cover 200 and the base 310 enclose a second cooking cavity 320. A microwave component is arranged in the base 310, and the microwave component can radiate microwaves into the second cooking cavity 320 to perform microwave heating on the food in the second cooking cavity 320. When the cooking utensil 300 performs microwave heating on the food, the user needs to buckle the cover 200 on the base 310 to prevent the microwaves in the second cooking cavity 320 from overflowing. When the cover 200 is buckled on the base 310, the shielding member 110 of the cover 200 contacts the base 310 to prevent the microwaves in the second cooking cavity 320 from leaking. The safety of the cooking utensil 300 is improved.

[0120] The cooking utensil 300 provided in the fifth aspect of the present invention comprises the cover body 200 provided in the third aspect of the present invention, and thus has all the beneficial effects of the cover body 200.

[0121] Cooking appliances include microwave ovens or microwave-induction cookers.

[0122] In a possible embodiment, the microwave shielding device 100 proposed in the present invention can be used for a non-incisor shielding door body (i.e., a door body assembly). The microwave shielding device 100 is mainly composed of a shielding plate 125, a shielding marble (i.e., a shielding member 110) and a marble fixing plate (i.e., a shielding member mounting plate 123). The overall size matches the size of the cavity front plate of the microwave oven, wherein, in the closed door state, the distance between the shielding plate 125 and the cavity front plate is 0 mm to 2 mm. The shielding plate 125 is made of a metal plate such as a stainless steel plate, an aluminum-plated plate, or a galvanized plate. A plurality of holes (i.e., openings 122) are evenly distributed around the shielding plate 125. The distance between two adjacent holes is not greater than 1 / 4 of the microwave wavelength generated by the cooking utensil (about 30 mm), and is generally about 20 mm. The aperture is between 2 mm and 10 mm, which needs to be slightly larger than the size of the shielding marble. The function of these holes is to position the shielding marble and allow the shielding marble to partially pass through the hole. The shielding marbles are not necessarily spherical, but can also be cylindrical, olive-shaped or other shapes, with the longest side of the shape being 2 mm to 10 mm. Each shielding marble corresponds to a hole on the shielding plate 125. The marble fixing plate can be metal or non-metal, and is used to limit the shielding marbles, allowing only reciprocating movement of the shielding marbles in a specific direction. The moving distance of the shielding marbles must be ensured to be greater than the flatness of the shielding plate 125, generally greater than 0.3 mm.

[0123] When the device used by the microwave shielding device 100 is installed horizontally, there is no need for a compression spring plate (i.e., the limiting plate 130 and the limiting member 131), and the shielding marbles can be directly relied on by their own weight to ensure that the shielding marbles are in contact with the front plate of the cavity. When the device used by the microwave shielding device 100 is not installed horizontally, a compression spring plate is required. The compression spring plate is made of metal materials with good resilience such as beryllium copper, brass, spring steel, or an elastic structure such as silicone and plastic buckles to increase pre-pressure on the shielding marbles to ensure that the shielding marbles can maintain good contact with the front plate of the cavity.

[0124] In addition, the microwave shielding device 100 can be integrated with the microwave oven cavity and designed into the form of a microwave cover plate, which can replace the traditional microwave oven cavity and oven door structure.

[0125] The working principle of the microwave shielding device 100 is: when the gap between the door body and the front plate of the cavity is large, the long gap between the door body and the front plate of the cavity will be contacted by the shielding beads, and the original long gap will be dispersed into a small gap. When the side length of the small gap is 20mm, the cutoff frequency is 7.5GHz, and the microwave cutoff frequency of 2.4GHz cannot be transmitted. Therefore, it can be ensured that even if the gap between the door body and the front plate of the cavity is large, there will be no leakage.

[0126] The microwave shielding device 100 proposed in this application can achieve the following technical effects:

[0127] The door body is made narrower, and the width of the front panel is reduced from 36mm to within 15mm, generally 8mm to 20mm; the thickness of the door body is reduced from more than 23mm to within 10mm; when the gap between the door body and the front panel of the cavity is less than 2mm, the microwave cutoff waveguide wavelength theory can still be used to ensure that the cavity does not leak waves, and the microwave shielding effect is better and more stable.

[0128] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0129] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0130] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A microwave shielding device, characterized in that: The microwave shielding device is used in a cooking utensil, wherein the cooking utensil comprises a box or a base, and the microwave shielding device comprises: multiple shields; The mounting plate assembly comprises a plurality of accommodating cavities, wherein the plurality of shielding members are installed in corresponding accommodating cavities in a one-to-one correspondence, and the mounting plate assembly comprises a plurality of openings, wherein the plurality of openings are arranged in a one-to-one correspondence with the plurality of accommodating cavities, and at least a portion of any of the shielding members can extend out of the opening and contact the box body or the base.

2. The microwave shielding device according to claim 1, characterized in that: The wavelength of the microwaves generated by the cooking device is λ, and the center distance between any two adjacent openings is λ / 4.

3. The microwave shielding device according to claim 1, characterized in that: The mounting plate assembly comprises: Shielding mounting plate; A plurality of mounting members, arranged on the shielding member mounting plate; The shielding plate is connected to the shielding component mounting plate, a plurality of the openings are arranged on the shielding plate, the mounting component protrudes from the shielding component mounting plate in a direction away from the shielding plate, and the shielding plate and the mounting component together form the accommodating cavity.

4. The microwave shielding device according to claim 3, characterized in that: Also includes: A limiting plate, located between the shielding component mounting plate and the shielding plate; A plurality of limiting members are arranged on the limiting plate, and the plurality of limiting members are arranged in one-to-one correspondence with the plurality of accommodating cavities. The limiting members are located in the corresponding accommodating cavities, and the limiting members are used to limit the corresponding shielding members so that at least a portion of the shielding members can extend out of the opening.

5. The microwave shielding device according to claim 4, characterized in that: The limiting member extends in a direction away from the opening, at least a portion of the limiting member is located on a side of the shielding member away from the opening, and the limiting member is elastic so as to press the shielding member along a side toward the opening.

6. The microwave shielding device according to any one of claims 3 to 5, characterized in that: The plurality of mounting members are arranged in sequence along the edge of the shielding member mounting plate.

7. The microwave shielding device according to any one of claims 1 to 5, characterized in that: The maximum cross-sectional dimension of the opening is smaller than the corresponding maximum cross-sectional dimension of the shield.

8. The microwave shielding device according to any one of claims 3 to 5, characterized in that: The shielding member and the shielding plate are made of metal material.

9. The microwave shielding device according to any one of claims 3 to 5, characterized in that: Also includes: A plurality of connectors are used to connect the shielding component mounting plate and the shielding plate.

10. The microwave shielding device according to any one of claims 3 to 5, characterized in that: The shielding plate has a limiting protrusion, and the shielding component mounting plate has a limiting opening adapted to the limiting protrusion, and the limiting protrusion extends into the limiting opening.

11. A door assembly, characterized in that: include: The microwave shielding device according to any one of claims 1 to 10.

12. A cover, characterized in that: include: The microwave shielding device according to any one of claims 1 to 10.

13. The cover according to claim 12, characterized in that: Also includes: The microwave shielding device is connected to the edge of the shell.

14. A cooking utensil, characterized in that: include: The door assembly according to claim 11; The box body comprises a first cooking cavity. The door body assembly is movably connected to the box body, and the door body assembly is used to open or close the first cooking cavity.

15. A cooking utensil, characterized in that: include: The cover body according to claim 12 or 13; The base is provided with a cover body which is detachably buckled on the base. When the cover body is buckled on the base, the shielding member of the cover body abuts against the base.

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