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, and the microwave shielding device comprises a support; the shielding net is connected with the support, the shielding net can transmit light, and the shielding net can prevent microwaves from penetrating through the shielding net; the light-transmitting plate is connected with the support, the light-transmitting plate and the shielding net are sequentially arranged in the thickness direction of the microwave shielding device, and the light-transmitting plate can transmit light.

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, the transparent shielding plate used in the microwave oven door usually has holes in the metal plate for light transmission. However, due to the limitation of the molding process, the spacing between the holes on the metal plate needs to be greater than the thickness of the metal plate, which results in a small number of holes on the metal plate and poor light transmittance of the metal plate. The brightness inside the microwave oven cannot meet the user's usage requirements. 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, comprising: a bracket; a shielding net connected to the bracket, the shielding net being light-transmissive and capable of preventing microwaves from penetrating; a light-transmitting plate connected to the bracket, the light-transmitting plate and the shielding net being arranged in sequence along the thickness direction of the microwave shielding device, the light-transmitting plate being light-transmissive.

[0010] The microwave shielding device proposed in the present application can be used in cooking utensils with microwave heating function. When the cooking utensils perform microwave heating on food, the microwave shielding device can not only shield the microwaves to prevent the microwaves from overflowing to the outside, but also transmit light to increase the brightness inside the cooking utensils, making it easier for users to observe the food.

[0011] The microwave shielding device includes a bracket and a shielding net, wherein the shielding net can both shield microwaves and be light-transmissive. Specifically, the shielding net is connected to the bracket, and the shielding net can be connected to the bracket by welding, bonding or screw connection. The shielding net has a plurality of through holes, and the through holes can transmit light, so that the shielding net has both light-transmissive effect. The shielding net can also prevent microwaves from penetrating, so that the microwave shielding device can both transmit light and shield microwaves. In the case where the cooking utensil used by the microwave shielding device performs microwave heating on food, the microwave shielding device can prevent the microwaves in the cooking utensil from overflowing, thereby improving the safety of the cooking utensil. The microwave shielding device can also transmit light, thereby improving the brightness in the cooking utensil, making it easier for users to observe the food in the cooking utensil, thereby improving the user's convenience of use.

[0012] Furthermore, the microwave shielding device also includes a light-transmitting plate, which is used to seal the through holes in the shielding net. Specifically, the light-transmitting plate is connected to the bracket, and the light-transmitting plate and the shielding net are arranged in sequence along the thickness direction of the microwave shielding device, and the light-transmitting plate can transmit light. It can be understood that when the microwave shielding device is used on the door body of the cooking utensil or other structures used to seal the inside of the cooking utensil, if the through holes on the shielding net are not sealed, the inside of the cooking utensil will not be in a closed state, which will cause the heat inside the cooking utensil to be lost, reducing the cooking efficiency. For this reason, the present application provides a light-transmitting plate that can seal the through holes on the shielding net in the microwave shielding device, and the light-transmitting plate can also transmit light, so that the microwave shielding device can seal the through holes on the shielding net under the premise of maintaining normal light transmission, prevent the microwave in the cooking utensil from overflowing, and prevent the heat in the cooking utensil from losing. In addition, by arranging the shielding net in the microwave shielding device, compared with the structure of opening holes on the metal plate, the aperture of the shielding net is larger, which improves the light transmission of the microwave shielding device.

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

[0014] In some technical solutions, optionally, at least a portion of the bracket protrudes from an edge of the light-transmitting plate.

[0015] In this technical solution, the relationship between the bracket and the light-transmitting plate is defined. Specifically, at least a portion of the bracket extends out of the edge of the light-transmitting plate. In this way, the bracket exposed to the light-transmitting plate can be connected to other components in the cooking utensil to achieve the fixation of the microwave shielding device. Specifically, the peripheral edges of the bracket are all exposed to the edge of the light-transmitting plate.

[0016] In some technical solutions, optionally, the microwave shielding device is used in a cooking utensil, and the microwave shielding device also includes: a plurality of connectors, which are used to connect the bracket to a shell assembly or a door frame structure in the cooking utensil, and the light-transmitting plate covers all the connectors along a direction perpendicular to the light-transmitting plate.

[0017] In this technical solution, the structure of the microwave shielding device is further defined. The microwave shielding device also includes a plurality of connectors, which are used to connect the bracket to a shell assembly or a door frame structure in the cooking utensil. For example, the cooking utensil includes a door assembly, and the connector is used to connect the bracket to the door frame structure in the door assembly, or the cooking utensil includes a cover body, and the cover body includes a shell assembly, and the connector is used to connect the bracket to the shell assembly. The connector can be a solid part such as a metal screw, or a welding point formed by a welding operation. A plurality of connectors are arranged in sequence along the edge of the bracket. By arranging the connector in the microwave shielding device, the microwave shielding device can be installed in the cooking utensil.

[0018] In some technical solutions, optionally, the wavelength of the microwaves generated by the cooking appliance is λ, and the distance between any two adjacent connecting members is less than or equal to λ / 4.

[0019] In this technical solution, the distance between the connectors is limited. Specifically, the wavelength of the microwaves generated by the cooking utensil is λ, and the distance between any two adjacent connectors is less than or equal to λ / 4. According to the quarter-wavelength theory, microwaves can be shielded by making the distance between any two adjacent connectors less than or equal to a quarter-wavelength. If the distance between the two adjacent connectors is too large, the effect of the microwave shielding device in shielding microwaves will be reduced.

[0020] In some technical solutions, optionally, the shielding net and the light-transmitting plate are respectively connected to two sides of the bracket.

[0021] In this technical solution, the positional relationship between the shielding net, the light-transmitting plate and the bracket is defined. Specifically, the shielding net and the light-transmitting plate are connected to the two sides of the bracket respectively. When the microwave shielding device is installed in the cooking utensil, the light-transmitting plate is arranged toward the outside, and the shielding net is arranged toward the inside of the cooking utensil. On the one hand, the shielding net can be protected by the light-transmitting plate, and on the other hand, the shielding effect of the shielding net on microwaves can be improved.

[0022] In some technical solutions, optionally, the light-transmitting plate covers the shielding net.

[0023] In this technical solution, the relationship between the light-transmitting plate and the shielding net is defined. Specifically, the light-transmitting plate covers the shielding net, that is, the shielding net is completely within the coverage of the light-transmitting plate, and the edge of the shielding net does not protrude from the edge of the light-transmitting plate. In this way, on the one hand, all the through holes on the shielding net can be closed by the light-transmitting plate, so that the microwave shielding device has a certain degree of sealing, preventing the shielding net from leaking microwaves and heat when the cooking utensil is cooking food, thereby improving the sealing of the cooking utensil. On the other hand, the shielding net can also be protected by the light-transmitting plate.

[0024] In some technical solutions, optionally, the bracket has a mounting opening, the shielding net is connected to the mounting opening, and the overlapping width dimension between the edge of the shielding net and the inner edge of the mounting opening is greater than 5 times the thickness dimension of the bracket.

[0025] In this technical solution, the structure of the bracket is further defined. In order to facilitate the installation of the light-transmitting member on the bracket, the present application provides a mounting opening on the bracket, the bracket is designed as a frame structure, the light-transmitting member is connected to the inner edge of the mounting opening, the frame of the bracket close to the mounting opening is fixed in the injection molding layer, and the frame of the bracket away from the mounting opening is exposed to the outside of the injection molding layer, so as to facilitate the connection of the microwave shielding device with other components in the cooking utensil. By providing the mounting opening in the bracket, on the one hand, the weight of the bracket can be reduced, and on the other hand, it is convenient to connect the light-transmitting member to the bracket.

[0026] Furthermore, the overlapping width between the edge of the shielding net and the inner edge of the installation opening is greater than 5 times the thickness of the bracket. In this way, on the one hand, the light-transmitting member can be firmly connected to the bracket, and the stress at the connection between the shielding net and the bracket can be reduced to prevent the shielding net from being deformed or broken due to stress. On the other hand, the microwave shielding device can be improved in its ability to shield microwaves and prevent microwave leakage.

[0027] In some technical solutions, optionally, the material of the bracket and the shielding net is metal.

[0028] In this technical solution, the materials of the bracket and the shielding net are limited. Specifically, the materials of the bracket and the shielding net are metal, so that the microwave shielding effect of the microwave shielding device can be further improved by the cooperation between the metal bracket and the metal shielding net. In addition, by designing the bracket to be made of metal, the strength of the bracket can be improved, thereby improving the overall strength of the microwave shielding device.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] In a possible technical solution, optionally, the number of the microwave shielding devices is one or more, the cover body includes a first cooking cavity, and the microwave shielding device constitutes at least one wall surface of the first cooking cavity.

[0034] In this technical solution, the structure of the cover body is further defined. The cover body includes one or more microwave shielding devices. When there is one microwave shielding device, the microwave shielding device constitutes a side wall of the cover body. When there are multiple microwave shielding devices in the cover body, the multiple microwave shielding devices are connected to each other. The cover body includes a first cooking cavity, and the microwave shielding device constitutes at least one wall of the first cooking cavity. In this way, light can be transmitted through the microwave shielding device to improve the brightness inside the cover body. When the cooking utensil adopts the microwave cooking mode to perform microwave heating on the food, microwaves exist in the first cooking cavity, and the microwave shielding device shields the microwaves to prevent the microwaves in the first cooking cavity from overflowing, thereby improving the safety of the cover body and the cooking utensil used for the cover body.

[0035] In a possible technical solution, optionally, the cover body further includes: a plurality of wave-suppressing teeth, and the wave-suppressing teeth are arranged on the edge of the microwave shielding device constituting the side wall of the first cooking cavity.

[0036] In this technical solution, the structure of the cover body is further defined. The cover body is used in a cooking utensil. When the cover body is buckled on the base of the cooking utensil, if there is a gap between the cover body and the base, the microwaves in the first cooking cavity will leak to the outside through the gap. In order to further reduce the leakage of microwaves in the first cooking cavity, the present application also provides a wave suppression tooth on the cover body for preventing microwave leakage. Specifically, there are multiple wave suppression teeth, and the multiple wave suppression teeth are provided on the edge of the microwave shielding device constituting the side wall of the first cooking cavity. When the cover body is buckled on the base, the multiple wave suppression teeth are fitted with the surface of the base to reduce the gap between the wave suppression teeth and the base, and the wave suppression teeth have the function of preventing the leakage of microwaves in the cooking cavity. In this way, by providing multiple wave suppression teeth on the edge of the cover body, the microwaves in the first cooking cavity can be prevented from leaking to the outside, thereby improving the cooking effect of the cooking utensil and improving the safety of the cooking utensil.

[0037] 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 second cooking cavity, the door assembly being movably connected to the box body, and the door assembly being used to open or close the second cooking cavity.

[0038] The cooking utensil proposed in the present application includes a door assembly and a box body, the box body includes a second cooking cavity, the door assembly is movably connected to the box body, and the door assembly is used to open or close the second cooking cavity. The door assembly includes a microwave shielding device, which constitutes at least a part of the door panel of the door assembly. When the door assembly closes the second cooking cavity, the microwave shielding device can transmit light, so as to facilitate observation of the second cooking cavity through the microwave shielding device. When the cooking utensil heats food in a microwave heating mode, the microwave shielding device provided in the door assembly can also shield microwaves to prevent the microwaves in the second cooking cavity from overflowing, thereby improving the safety of the cooking utensil.

[0039] 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.

[0040] 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; and a base, wherein the cover body can be detachably buckled on the base, and when the cover body is buckled on the base, the wave-suppressing teeth of the cover body abut against the base.

[0041] 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. A microwave component is arranged in the base, and the microwave component can radiate microwaves to the upper surface of the base to perform microwave heating on the food. 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 first cooking cavity from overflowing. When the cover body is buckled on the base, the wave suppression teeth of the cover body are in contact with the surface of the base, thereby reducing the gap between the cover body and the base, and further reducing the microwave overflow in the first cooking cavity.

[0042] 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.

[0043] Cooking appliances include microwave ovens or microwave-induction cookers.

[0044] 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

[0045] 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:

[0046] Figure 1 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0047] Figure 2 Shows Figure 1 Sectional view of section AA;

[0048] Figure 3 A second structural schematic diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0049] Figure 4 A third structural schematic diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0050] Figure 5 A fourth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0051] Figure 6 A fifth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0052] Figure 7 A sixth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0053] Figure 8 One of the exploded views of a cooking appliance showing one embodiment of the present invention;

[0054] Fig. 9 FIG7 shows a seventh structural schematic diagram of a cooking utensil according to an embodiment of the present invention;

[0055] Fig.10 An eighth structural schematic diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0056] Fig.11 A second exploded view of a cooking appliance according to an embodiment of the present invention is shown;

[0057] Fig.12 A ninth structural diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0058] Fig.13 A tenth structural diagram of a cooking appliance according to an embodiment of the present invention is shown;

[0059] Fig.14 A third exploded view of a cooking appliance according to an embodiment of the present invention is shown;

[0060] Fig.15 FIG11 is a structural schematic diagram of a cooking appliance according to an embodiment of the present invention;

[0061] Fig.16 A twelfth structural diagram of a cooking utensil according to an embodiment of the present invention is shown;

[0062] Fig.17 A fourth exploded view of a cooking appliance according to an embodiment of the present invention is shown;

[0063] Fig.18 One of the structural schematic diagrams of a door assembly according to an embodiment of the present invention is shown;

[0064] Fig.19 A second structural schematic diagram of a door assembly according to an embodiment of the present invention is shown;

[0065] Fig. 20 One of the exploded views of a door assembly according to one embodiment of the present invention is shown;

[0066] Fig.21 A second exploded view of a door assembly according to an embodiment of the present invention is shown.

[0067] in, Figures 1 to 21 The corresponding relationship between the reference numerals and the component names is as follows:

[0068] 100 microwave shielding device, 110 bracket, 111 installation port, 120 shielding net, 130 light-transmitting plate, 140 connecting piece, 200 door body assembly, 210 door frame structure, 300 cover body, 310 first cooking cavity, 320 wave suppression tooth, 330 shell assembly, 400 cooking utensil, 410 base. DETAILED DESCRIPTION

[0069] 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.

[0070] 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.

[0071] Refer to the following Figures 1 to 21 The microwave shielding device 100 , the door assembly 200 , the cover 300 , and the cooking utensil 400 provided according to some embodiments of the present invention are described.

[0072] In one embodiment according to the present application, Figure 6 , Figure 8 , Fig.11 , Fig.14 , Fig.17 , Fig.18 , Fig. 20 and Fig.21As shown, the present invention proposes a microwave shielding device 100, comprising: a bracket 110; a shielding net 120, connected to the bracket 110, the shielding net 120 is light-transmissive, and the shielding net 120 can prevent microwaves from penetrating; a light-transmitting plate 130, connected to the bracket 110, along the thickness direction of the microwave shielding device 100, the light-transmitting plate 130 and the shielding net 120 are arranged in sequence, and the light-transmitting plate 130 is light-transmissive.

[0073] The microwave shielding device 100 proposed in the present application can be used in a cooking appliance with a microwave heating function. When the cooking appliance performs microwave heating on food, the microwave shielding device 100 can not only shield the microwaves to prevent them from overflowing to the outside, but also transmit light to increase the brightness inside the cooking appliance, making it easier for users to observe the food.

[0074] The microwave shielding device 100 includes a bracket 110 and a shielding net 120, wherein the shielding net 120 can not only shield microwaves, but also transmit light. Specifically, the shielding net 120 is connected to the bracket 110, and the shielding net 120 can be connected to the bracket 110 by welding, bonding or screw connection. The shielding net 120 has a plurality of through holes, and the through holes can transmit light, so that the shielding net 120 has both a light-transmitting effect. The shielding net 120 can also prevent microwaves from penetrating, so that the microwave shielding device 100 can transmit light and shield microwaves. In the case where the cooking utensil used by the microwave shielding device 100 performs microwave heating on food, the microwave shielding device 100 can prevent the microwaves in the cooking utensil from overflowing, thereby improving the safety of the cooking utensil. The microwave shielding device 100 can also transmit light, improve the brightness in the cooking utensil, and facilitate the user to observe the food in the cooking utensil, thereby improving the user's convenience of use.

[0075] Furthermore, the microwave shielding device 100 further includes a light-transmitting plate 130, which is used to seal the through holes in the shielding net 120. Specifically, the light-transmitting plate 130 is connected to the bracket 110, and the light-transmitting plate 130 and the shielding net 120 are arranged in sequence along the thickness direction of the microwave shielding device 100, and the light-transmitting plate 130 can transmit light. It can be understood that when the microwave shielding device 100 is used on the door body of a cooking utensil or other structure used to seal the inside of the cooking utensil, if the through holes on the shielding net 120 are not sealed, the inside of the cooking utensil cannot be in a closed state, thereby causing the heat inside the cooking utensil to be lost, reducing the cooking efficiency. To this end, the present application provides a light-transmitting plate 130 capable of closing the through holes on the shielding net 120 in the microwave shielding device 100, and the light-transmitting plate 130 is also capable of transmitting light, so that the microwave shielding device 100 can close the through holes on the shielding net 120 under the premise of maintaining normal light transmission, thereby preventing the microwave in the cooking utensil from escaping and preventing the heat in the cooking utensil from being lost. In addition, by providing the shielding net 120 in the microwave shielding device 100, compared with the structure of opening holes in the metal plate, the aperture of the shielding net 120 is larger, thereby increasing the light transmission of the microwave shielding device 100.

[0076] In some embodiments, optionally, at least a portion of the bracket 110 protrudes from an edge of the light-transmitting plate 130 .

[0077] In this embodiment, the relationship between the bracket 110 and the light-transmitting plate 130 is defined. Specifically, at least a portion of the bracket 110 extends out of the edge of the light-transmitting plate 130. In this way, the bracket 110 exposed from the light-transmitting plate 130 can be connected to other components in the cooking utensil to achieve the fixation of the microwave shielding device 100. Specifically, the peripheral edges of the bracket 110 are all exposed from the edge of the light-transmitting plate 130.

[0078] In some embodiments, optionally, Figure 6 As shown, the microwave shielding device 100 is used in a cooking utensil, and the microwave shielding device 100 also includes: a plurality of connectors 140, the connectors 140 are used to connect the bracket 110 to the shell assembly 330 or the door frame structure 210 in the cooking utensil, and the light-transmitting plate 130 covers all the connectors 140 along a direction perpendicular to the light-transmitting plate 130.

[0079] In this embodiment, the structure of the microwave shielding device 100 is further defined. The microwave shielding device 100 also includes a plurality of connectors 140, which are used to connect the bracket 110 to a component in the cooking utensil. For example, the cooking utensil includes a door assembly 200, and the connector 140 is used to connect the bracket 110 to the door frame structure 210 in the door assembly 200, or the cooking utensil includes a cover 300, and the cover 300 includes a shell assembly 330, and the connector 140 is used to connect the bracket 110 to the shell assembly 330. The connector 140 can be a solid part such as a metal screw, or a welding point formed by a welding operation. A plurality of connectors 140 are sequentially arranged along the edge of the bracket 110. By arranging the connector 140 in the microwave shielding device 100, the microwave shielding device 100 can be installed in the cooking utensil.

[0080] In some embodiments, optionally, the wavelength of the microwaves generated by the cooking appliance is λ, and the distance between any two adjacent connecting members 140 is less than or equal to λ / 4.

[0081] In this embodiment, the distance between the connectors 140 is limited. Specifically, the wavelength of the microwave generated by the cooking utensil is λ, and the distance between any two adjacent connectors 140 is less than or equal to λ / 4. According to the quarter-wavelength theory, the microwaves can be shielded by making the distance between any two adjacent connectors 140 less than or equal to a quarter-wavelength. If the distance between the two adjacent connectors 140 is too large, the microwave shielding effect of the microwave shielding device 100 will be reduced.

[0082] In some embodiments, optionally, Figure 8 , Fig.11 , Fig.14 and Fig.17 As shown, the shielding net 120 and the light-transmitting plate 130 are respectively connected to two sides of the bracket 110 .

[0083] In this embodiment, the positional relationship between the shielding net 120, the light-transmitting plate 130 and the bracket 110 is defined. Specifically, the shielding net 120 and the light-transmitting plate 130 are respectively connected to the two sides of the bracket 110. When the microwave shielding device 100 is installed in the cooking utensil, the light-transmitting plate 130 is arranged toward the outside, and the shielding net 120 is arranged toward the inside of the cooking utensil. On the one hand, the shielding net 120 can be protected by the light-transmitting plate 130, and on the other hand, the shielding effect of the shielding net 120 on microwaves can be improved.

[0084] In some embodiments, optionally, the light-transmitting plate 130 covers the shielding mesh 120 .

[0085] In this embodiment, the relationship between the light-transmitting plate 130 and the shielding net 120 is defined. Specifically, the light-transmitting plate 130 covers the shielding net 120, that is, the shielding net 120 is completely located within the coverage of the light-transmitting plate 130, and the edge of the shielding net 120 does not protrude from the edge of the light-transmitting plate 130. In this way, on the one hand, all through holes on the shielding net 120 can be closed by the light-transmitting plate 130, so that the microwave shielding device 100 has a certain degree of sealing, preventing the shielding net 120 from leaking microwaves and heat when the cooking utensil is cooking the food, thereby improving the sealing of the cooking utensil. On the other hand, the shielding net 120 can also be protected by the light-transmitting plate 130.

[0086] In some embodiments, optionally, Figure 8 , Fig.11 , Fig.14 and Fig.17 As shown, the bracket 110 has an installation opening 111 , the shielding net 120 is connected to the installation opening 111 , and the overlapping width dimension between the edge of the shielding net 120 and the inner edge of the installation opening 111 is greater than 5 times the thickness dimension of the bracket 110 .

[0087] In this embodiment, the structure of the bracket 110 is further defined. In order to facilitate the installation of the light-transmitting member on the bracket 110, the present application provides a mounting opening 111 on the bracket 110. The bracket 110 is designed as a frame structure. The light-transmitting member is connected to the inner edge of the mounting opening 111. The portion of the frame of the bracket 110 close to the mounting opening 111 is fixed in the injection molding layer, and the portion of the frame of the bracket 110 away from the mounting opening 111 is exposed to the outside of the injection molding layer, so as to facilitate the connection of the microwave shielding device 100 with other components in the cooking utensil. By providing the mounting opening 111 in the bracket 110, on the one hand, the weight of the bracket 110 can be reduced, and on the other hand, it is convenient to connect the light-transmitting member to the bracket 110.

[0088] Furthermore, the overlapping width between the edge of the shielding net 120 and the inner edge of the mounting opening 111 is greater than 5 times the thickness of the bracket 110. In this way, on the one hand, the light-transmitting member can be firmly connected to the bracket 110, and the stress at the connection between the shielding net 120 and the bracket 110 can be reduced to prevent the shielding net 120 from being deformed or broken by force, and on the other hand, the microwave shielding ability of the microwave shielding device 100 can be improved to prevent microwave leakage.

[0089] In some embodiments, optionally, the material of the bracket 110 and the shielding mesh 120 is metal.

[0090] In this embodiment, the materials of the bracket 110 and the shielding net 120 are limited. Specifically, the materials of the bracket 110 and the shielding net 120 are metal, so that the microwave shielding effect of the microwave shielding device 100 can be further improved by the cooperation between the bracket 110 made of metal and the shielding net 120 made of metal. In addition, by designing the material of the bracket 110 to be metal, the strength of the bracket 110 can be improved, thereby improving the overall strength of the microwave shielding device 100.

[0091] The second aspect of the present invention further provides a door assembly 200, comprising the microwave shielding device 100 provided in the first aspect of the present invention.

[0092] like Fig.18 , Fig.19 , Fig. 20 and Fig.21 As shown, the door assembly 200 proposed in the present application includes a door frame structure 210 and a microwave shielding device 100 , and the microwave shielding device 100 is installed on the door frame structure 210 .

[0093] The door assembly 200 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 .

[0094] The third aspect of the present invention further provides a cover 300 , comprising the microwave shielding device 100 provided in the first aspect of the present invention.

[0095] The cover body 300 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 .

[0096] In a possible embodiment, optionally, as Figure 6 , Figure 7 , Fig.13 and Fig.14 As shown, the number of the microwave shielding device 100 is one or more, the cover body 300 includes a first cooking cavity 310 , and the microwave shielding device 100 constitutes at least one wall surface of the first cooking cavity 310 .

[0097] In this embodiment, the structure of the cover 300 is further defined. The cover 300 includes one or more microwave shielding devices 100, such as Figure 6 and Figure 7 As shown, when there is only one microwave shielding device 100, the microwave shielding device 100 constitutes a side wall surface of the cover body 300. Fig.12 , Fig.13 , Fig.15 and Fig.16As shown, in the case where there are multiple microwave shielding devices 100 in the cover body 300, the multiple microwave shielding devices 100 are connected to each other. The cover body 300 includes a first cooking cavity 310, and the microwave shielding device 100 constitutes at least one wall surface of the first cooking cavity 310. In this way, light can be transmitted through the microwave shielding device 100 to improve the brightness inside the cover body 300. When the cooking utensil adopts a microwave cooking mode to heat the food with microwaves, there are microwaves in the first cooking cavity 310, and the microwave shielding device 100 shields the microwaves to prevent the microwaves in the first cooking cavity 310 from overflowing, thereby improving the safety of the cover body 300 and the cooking utensil used for the cover body 300.

[0098] In the case where there is only one microwave shielding device 100 in the cover body 300 , the cover body 300 further includes a housing assembly 330 , and the microwave shielding device is connected to the housing assembly 330 . In a possible technical solution, the microwave shielding device 100 constitutes the top wall of the cover body 300 .

[0099] In a possible embodiment, optionally, as Fig.16 As shown, the cover 300 further includes: a plurality of wave-suppressing teeth 320 , and the wave-suppressing teeth 320 are arranged at the edge of the microwave shielding device 100 constituting the side wall of the first cooking cavity 310 .

[0100] In this embodiment, the structure of the cover 300 is further defined. The cover 300 is used in a cooking utensil. When the cover 300 is buckled on the base 410 of the cooking utensil, if there is a gap between the cover 300 and the base 410, the microwave in the first cooking cavity 310 will leak to the outside through the gap. In order to further reduce the microwave leakage in the first cooking cavity 310, the present application further provides a wave suppression tooth 320 on the cover 300 for preventing microwave leakage. Specifically, the number of the wave suppression teeth 320 is multiple, and the multiple wave suppression teeth 320 are provided at the edge of the microwave shielding device 100 constituting the side wall of the first cooking cavity 310. When the cover 300 is buckled on the base 410, the multiple wave suppression teeth 320 are attached to the surface of the base 410 to reduce the gap between the wave suppression teeth 320 and the base 410, and the wave suppression teeth 320 have the function of preventing microwave leakage in the cooking cavity. In this way, by arranging a plurality of wave-suppressing teeth 320 on the edge of the cover body 300, the microwaves in the first cooking cavity 310 can be prevented from leaking to the outside, thereby improving the cooking effect of the cooking utensil and improving the safety of the cooking utensil.

[0101] like Figure 6 and Figure 7 As shown, in a possible technical solution, the microwave shielding device 100 constitutes the top wall of the cover body 300 , and the wave suppression teeth 320 are connected to the shell assembly 330 .

[0102] The fourth aspect of the present invention further proposes a cooking utensil, comprising: the door assembly 200 proposed in the second aspect of the present invention; a box body, comprising a second cooking cavity, the door assembly 200 being movably connected to the box body, and the door assembly 200 being used to open or close the second cooking cavity.

[0103] The cooking utensil proposed in the present application includes a door assembly 200 and a box body, the box body includes a second cooking cavity, the door assembly 200 is movably connected to the box body, and the door assembly 200 is used to open or close the second cooking cavity. The door assembly 200 includes a microwave shielding device 100, and the microwave shielding device 100 constitutes at least a part of the door panel of the door assembly 200. When the door assembly 200 closes the second cooking cavity, the microwave shielding device 100 can be light-transmissive, so as to facilitate observation of the second cooking cavity through the microwave shielding device 100. When the cooking utensil heats food in a microwave heating mode, the microwave shielding device 100 provided in the door assembly 200 can also shield microwaves to prevent the microwaves in the second cooking cavity from overflowing, thereby improving the safety of the cooking utensil.

[0104] The cooking appliance provided in the fourth aspect of the present invention comprises the door assembly 200 proposed in the second aspect of the present invention, and therefore has all the beneficial effects of the door assembly 200.

[0105] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Fig. 9 , Fig.10 , Fig.12 and Fig.13 As shown, the fifth aspect of the present invention further proposes a cooking utensil 400, comprising: the cover body 300 proposed in the third aspect of the present invention; a base 410, the cover body 300 can be detachably buckled on the base 410, and when the cover body 300 is buckled on the base 410, the wave suppression teeth 320 of the cover body 300 are against the base 410.

[0106] The cooking utensil 400 proposed in the present application includes a cover 300 and a base 410, and the cover 300 can be detachably buckled on the base 410. A microwave component is arranged in the base 410, and the microwave component can radiate microwaves into the first cooking cavity 310 to perform microwave heating on the food. When the cooking utensil 400 performs microwave heating on the food, the user needs to buckle the cover 300 on the base 410 to prevent the microwaves in the first cooking cavity 310 from overflowing. When the cover 300 is buckled on the base 410, the wave suppression teeth 320 of the cover 300 are in contact with the surface of the base 410, thereby reducing the gap between the cover 300 and the base 410, and further reducing the microwaves in the first cooking cavity 310 from overflowing.

[0107] The cooking utensil 400 provided in the fifth aspect of the present invention comprises the cover body 300 provided in the third aspect of the present invention, and thus has all the beneficial effects of the cover body 300.

[0108] Cooking appliances include microwave ovens or microwave-induction cookers.

[0109] In a possible embodiment, the present invention provides a microwave shielding device 100 with a metal wire mesh. The microwave shielding device 100 can be in the form of a common shielding door body (i.e., a door body assembly 200), or in the form of a shielding cover. When in the shielding cover (i.e., a cover body 300), it can serve as a microwave cavity. The microwave shielding device 100 is mainly composed of a metal wire mesh (i.e., a shielding mesh 120), a bracket 110, and a transparent baffle (i.e., a light-transmitting plate 130).

[0110] Metal mesh is woven with steel wire, copper wire, nickel wire, tungsten wire or other metal wire, or connected by welding. Depending on the diameter of the metal wire and the size of the mesh holes, it is usually called: such as steel mesh, iron wire gauze (window screen), copper wire cloth, etc. There are many forms of metal mesh, the most common ones are square hole plain weave and square hole twill weave. In addition, there are diamond hole, hexagonal hole twisted weave, etc. In this case, in order to increase the light transmittance and visibility of the metal mesh, the metal wire uses 0.05mm to 0.8mm wire, and the longest margin range of the mesh is 0.5mm to 5mm to prevent excessive microwave leakage due to excessive margins.

[0111] The microwave shielding device 100 can be located at the top of the shielding cover, or the top and the side of the shielding cover are distributed at the same time. The bottom of the shielding cover is a microwave choke tooth structure (i.e., the wave suppression tooth 320), and the metal mesh is fixed to the other plates of the shielding cover through the bracket 110. The bracket 110 can be a plate or rod-shaped form. The bracket 110 is connected to other plates in the shielding cover and the metal mesh by fastening point connection (welding, riveting, clamping or screws). There are generally multiple connection points. The spacing between adjacent connection points is not greater than 1 / 4 of the wavelength of the microwave generated by the cooking utensil used by the microwave shielding device 100, which is about 30mm, and can usually be 10mm to 30mm. The width of the overlapped edge is greater than 5 times the thickness of the bracket 110. It can be maze-like or embedded to increase the gap depth, or double-row fastening and multiple distribution methods can be used to prevent microwave leakage from exceeding the standard. In order to pass the waveguide test of the microwave oven and prevent the user from conducting the microwaves in the oven cavity to the outside of the microwave oven through a thin metal wire, a transparent baffle is added to the inside or outside of the metal wire mesh for protection. The transparent baffle can be fixed by bonding, screws, snaps, etc. The material of the transparent baffle can be transparent plastic, glass, silicone, etc.

[0112] 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.

[0113] 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.

[0114] 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: include: Bracket; A shielding net connected to the bracket, the shielding net is light-transmissive and can prevent microwaves from penetrating; A light-transmitting plate is connected to the bracket. The light-transmitting plate and the shielding net are arranged in sequence along the thickness direction of the microwave shielding device. The light-transmitting plate can transmit light.

2. The microwave shielding device according to claim 1, characterized in that: At least a portion of the bracket protrudes from the edge of the light-transmitting plate.

3. The microwave shielding device according to claim 1, characterized in that: The microwave shielding device is used in a cooking utensil, and the microwave shielding device further comprises: A plurality of connecting members are provided, wherein the connecting members are used to connect the bracket with a shell assembly or a door frame structure in the cooking appliance, and the light-transmitting plate covers all the connecting members in a direction perpendicular to the light-transmitting plate.

4. The microwave shielding device according to claim 3, characterized in that: The wavelength of the microwaves generated by the cooking appliance is λ, and the distance between any two adjacent connecting members is less than or equal to λ / 4.

5. The microwave shielding device according to claim 1, characterized in that: The shielding net and the light-transmitting plate are respectively connected to two sides of the bracket.

6. The microwave shielding device according to claim 1, characterized in that: The light-transmitting plate covers the shielding net.

7. The microwave shielding device according to any one of claims 1 to 6, characterized in that: The bracket has an installation opening, the shielding net is connected to the installation opening, and the overlapping width dimension between the edge of the shielding net and the inner edge of the installation opening is greater than 5 times the thickness dimension of the bracket.

8. The microwave shielding device according to any one of claims 1 to 6, characterized in that: The bracket and the shielding net are made of metal.

9. A door assembly, characterized in that: include: A microwave shielding device as claimed in any one of claims 1 to 8.

10. A cover, characterized in that: include: A microwave shielding device as claimed in any one of claims 1 to 8.

11. The cover according to claim 10, characterized in that: The number of the microwave shielding device is one or more, the cover body includes a first cooking cavity, and the microwave shielding device constitutes at least one wall surface of the first cooking cavity.

12. The cover according to claim 11, characterized in that: Also includes: A plurality of wave-suppressing teeth are provided at the edge of the microwave shielding device constituting the side wall of the first cooking cavity.

13. A cooking utensil, characterized in that: include: The door assembly as claimed in claim 9; The box body comprises a second 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 second cooking cavity.

14. A cooking utensil, characterized in that: include: The cover according to any one of claims 10 to 12; The base is provided, and the cover body is detachably buckled on the base. When the cover body is buckled on the base, the wave suppression teeth of the cover body abut against the base.

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