Cooking apparatus and door device thereof

Abstract

The utility model discloses a kind of cooking equipment and its door body device, and door body device includes door body frame, transparent part, shielding grid and heating device, transparent part is located on door body frame, shielding grid is located on door body frame or transparent part, heating device is configured to provide energy for shielding grid, improve the temperature of shielding grid. Since shielding grid is arranged on door body device, shielding grid heat transfer speed is fast, heating shielding grid makes transparent part quickly and uniformly temperature rise, to avoid transparent part to produce condensate, simultaneously can avoid microwave leakage.

Description

Technical Field

[0001] This utility model belongs to the field of cooking equipment technology, specifically, it relates to a cooking device and its door device. Background Technology

[0002] Microwave cooking devices, such as microwave ovens or microwave ovens, heat food from the inside out using microwave energy. During the heating process, the interior of the microwave cooking device does not heat up rapidly. The heated food produces hot steam containing a large amount of moisture. This hot steam, upon contact with the relatively cool glass door, produces a significant amount of condensation, negatively impacting the user experience.

[0003] Existing technology utilizes microwave magnetic cooling tubes and frequency converters to generate hot air for heat dissipation. This hot air is then guided to the glass door via an air guide structure above the cooking cavity. The heated glass, upon contact with the hot air inside the cavity, significantly reduces condensation. However, this method carries the risk of microwave leakage. Furthermore, due to substantial losses during hot air propagation, condensation can still occur on the glass door sections located away from the air guide structure.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This invention proposes a cooking device and its door assembly to solve the technical problems of existing cooking devices that use hot air from the air duct to heat the door glass, which poses a risk of microwave leakage and causes condensation to form on the glass even when it is far from the air duct.

[0006] To achieve the above-mentioned utility model / design objectives, the present utility model adopts the following technical solution:

[0007] A door device for a cooking appliance, comprising:

[0008] Door frame;

[0009] The transparent section is located on the door frame;

[0010] Also includes:

[0011] The shielding mesh is located on the door frame or the transparent part;

[0012] A heating device is configured to provide energy to the shielding mesh, thereby increasing the temperature of the shielding mesh.

[0013] As described above, in the door assembly of the cooking equipment, the heating device is an electric heating device, which is connected to the shielding mesh to provide heat to the shielding mesh;

[0014] Alternatively, the heating device may be a power supply circuit, which is electrically connected to the shielding mesh to provide power to the shielding mesh, and the shielding mesh is insulated from the door frame or the transparent part.

[0015] In the door assembly of the cooking device described above, the electric heating device is located within the door frame and is in contact with the edge of the shielding mesh.

[0016] As described above, in the door assembly of the cooking device, the transparent portion includes an outer glass layer and an inner glass layer located on the door frame, the shielding mesh is located between the outer glass layer and the inner glass layer, and the electric heating device is located inside the door frame.

[0017] As described above, the door assembly of the cooking appliance, when the heating device is a power supply circuit,

[0018] The transparent portion includes an outer glass layer and an inner glass layer located on the door frame, and the shielding mesh is connected to the door frame through an insulating frame; or, the shielding mesh is installed on the outer glass layer or the inner glass layer and does not contact the door frame.

[0019] Alternatively, the transparent portion may include glass located on the door frame and a shielding mesh embedded in the glass.

[0020] As described above, the power supply circuit of the door assembly of the cooking device includes a power source, a switch, and wires, with the wires connected to the power source and the shielding mesh via the switch.

[0021] As described above, the door assembly of the cooking device has a wire connected to the positive terminal of the power supply and a wire connected to the negative terminal connected to the opposite ends of the shielding mesh.

[0022] As described above, in the door assembly of the cooking equipment, at least part of the wiring is installed and hidden within the door frame.

[0023] The door assembly of the cooking appliance described above includes decorative glass located on the outside of the door frame.

[0024] A cooking device includes a cooking device body and a door device, the cooking device body forming a cooking cavity, and the door device being used to open and close the cooking cavity, wherein the door device is the aforementioned door device.

[0025] Compared with the prior art, the advantages and positive effects of this utility model are:

[0026] The door assembly of this cooking device includes a door frame, a transparent section, a shielding mesh, and a heating device. The transparent section is located on the door frame, and the shielding mesh is located on either the door frame or the transparent section. The heating device is configured to provide energy to the shielding mesh, increasing its temperature. Because the shielding mesh is arranged on the door assembly, it has a fast heat transfer rate. Heating the shielding mesh causes the transparent section to heat up quickly and evenly, preventing condensation and microwave leakage.

[0027] This utility model of cooking equipment includes a cooking device body and a door device. The cooking device body forms a cooking cavity, and the door device is used to open and close the cooking cavity. The door device includes a door frame, a transparent part, a shielding mesh, and a heating device. The transparent part is located on the door frame, and the shielding mesh is located on either the door frame or the transparent part. The heating device is configured to provide energy to the shielding mesh, increasing its temperature. Because the shielding mesh is arranged on the door device, it has a fast heat transfer rate. Heating the shielding mesh causes the transparent part to heat up quickly and evenly, preventing condensation in the transparent part and also preventing microwave leakage.

[0028] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a door device according to a specific embodiment of this utility model.

[0031] Figure 2 This is a cross-sectional view of the door device according to a specific embodiment of this utility model.

[0032] Figure 3 This is a cross-sectional view of a door device according to another specific embodiment of this utility model.

[0033] Figure 4 This is a schematic diagram of the connection between the shielding mesh and the wire in another specific embodiment of this utility model.

[0034] In the picture,

[0035] 1. Door frame;

[0036] 2. Shielding mesh;

[0037] 21. Insulating frame;

[0038] 3. Electric heating device;

[0039] 41. Outer glass;

[0040] 42. Inner glass;

[0041] 43. Decorative glass;

[0042] 5. Wires;

[0043] 6. Switch;

[0044] 7. Power supply. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0049] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] Microwave cooking equipment is used to cook food using microwaves. During the cooking process, microwave energy heats the food from the inside out. The internal temperature of the equipment cavity does not rise rapidly, especially at the door, where the temperature remains relatively low. The heated food produces hot steam containing a large amount of moisture. This steam, upon contact with the relatively cool glass door, produces significant condensation. To prevent condensation on the door glass, a door device for this cooking equipment is proposed.

[0051] The door assembly of the cooking equipment includes a door frame 1, a transparent part, a shielding mesh 2, and a heating device.

[0052] The door frame 1 is the base of the door assembly.

[0053] The other parts of the door assembly are installed on the door frame 1.

[0054] The transparent part is located on the door frame.

[0055] The transparent section allows users to observe the internal condition of the cooking equipment.

[0056] The shielding mesh 2 is located on the door frame 1 or the transparent part.

[0057] The shielding mesh 2 is used to shield microwaves inside the cooking equipment, preventing microwave leakage from the door of the cooking equipment and avoiding damage to organisms around the cooking equipment.

[0058] The size of the shielding mesh 2 is adapted to the size of the door device.

[0059] The heating device is configured to provide energy to the shielding mesh 2, thereby increasing the temperature of the shielding mesh.

[0060] Because the shielding mesh is arranged on the door device, the shielding mesh has a fast heat transfer speed. Heating the shielding mesh causes the door device to heat up quickly and evenly. As a result, the transparent part can also heat up quickly and evenly, so as to avoid condensation in the transparent part and prevent microwave leakage.

[0061] The cooking equipment and its door device are described in detail below through two embodiments, using two different forms of heating devices: Example 1

[0062] In this embodiment, the heating device is an electric heating device.

[0063] like Figure 1 , Figure 2 As shown, the door assembly of the cooking equipment includes a door frame 1, a transparent part, a shielding mesh 2, and an electric heating device 3.

[0064] The door frame 1 is the base of the door assembly.

[0065] The other parts of the door assembly are installed on the door frame 1.

[0066] The door frame 1 is a square frame with a hollowed-out middle section.

[0067] The transparent part is located on the door frame 1, which closes the hollow part in the middle.

[0068] The transparent section allows users to observe the internal condition of the cooking equipment.

[0069] The transparent part is made of glass; in some other embodiments, the transparent part may also be made of other transparent materials.

[0070] The shielding mesh 2 is located on the door frame 1 or the transparent part.

[0071] The shielding mesh 2 is installed on the door frame 1 or the transparent part.

[0072] The shielding mesh 2 is used to shield microwaves inside the cooking equipment, preventing microwave leakage from the door of the cooking equipment and avoiding damage to organisms around the cooking equipment.

[0073] The size of the shielding mesh 2 is adapted to the size of the door device to improve the shielding effect.

[0074] In some embodiments, the size of the shielding mesh 2 is adapted to the size of the space enclosed by the door frame 1.

[0075] The electric heating device 3 is connected to the shielding mesh 2. The electric heating device 3 provides heat to the shielding mesh 2 to increase the temperature of the shielding mesh 2, thereby increasing the temperature of the transparent part and preventing condensation from forming in the transparent part.

[0076] Since the shielding mesh 2 is arranged on the door device and is made of metal, the shielding mesh 2 has a fast heat transfer speed. Heating the shielding mesh 2 makes the door device heat up quickly and evenly, so that the transparent part can also heat up quickly and evenly, thus avoiding the formation of condensation in the transparent part.

[0077] To prevent the electric heating device from obstructing the transparent part and affecting the user's observation of the internal state of the cooking equipment, the electric heating device 3 is located inside the door frame 1, and the electric heating device 3 is in contact with the edge of the shielding mesh 2.

[0078] The electric heating device 3 is generally installed at the lower end of the door frame 1, and the electric heating device 3 is in contact with the lower edge of the shielding mesh 2.

[0079] The length of the electric heating device 3 can be adapted to the length of the shielding mesh 2.

[0080] To improve the heating rate and uniformity of the shielding mesh 2, in some other embodiments:

[0081] The electric heating device 3 is located at the lower end of the door frame 1, and the electric heating device 3 is in contact with the lower edge of the shielding mesh 2.

[0082] And / or, the electric heating device 3 is installed at the upper end of the door frame 1, and the electric heating device 3 is in contact with the upper edge of the shielding mesh 2.

[0083] And / or, the electric heating device 3 is located at the left end of the door frame 1, and the electric heating device 3 is in contact with the left edge of the shielding mesh 2.

[0084] And / or, the electric heating device 3 is located at the right end of the door frame 1, and the electric heating device 3 is in contact with the right edge of the shielding mesh 2.

[0085] Among them, the electric heating device 3 is an electric heating tube.

[0086] In some other embodiments, the electric heating device 3 may also be in the form of an electric heating belt or the like.

[0087] The transparent part includes an outer glass 41 and an inner glass 42 located on the door frame 1. Both the outer glass 41 and the inner glass 42 are installed on the door frame 1. An installation space for installing a shielding mesh 2 is formed between the outer glass 41 and the inner glass 42. The shielding mesh 2 is located in the installation space between the outer glass 41 and the inner glass 42. The electric heating device 3 is located inside the door frame 1.

[0088] The shielding mesh 2 can be installed on the door frame 1.

[0089] Alternatively, the shielding mesh 2 can be installed on the inside of the outer glass 41.

[0090] Alternatively, the shielding mesh 2 can be installed on the outside of the inner glass 42.

[0091] The door assembly includes decorative glass 43 located on the outside of the door frame 1.

[0092] Decorative glass 43 forms the overall appearance of the door assembly.

[0093] The area of ​​the decorative glass 43 is matched to or slightly larger than the area of ​​the door assembly, which can prevent the user from directly contacting the door assembly.

[0094] The outer glass 41 and the inner glass 42 can insulate against heat radiation and reduce the temperature of the decorative glass 43.

[0095] The outer glass 41 and the inner glass 42 can also protect the shielding mesh 2. In particular, the inner glass 42 can also prevent food from splashing onto the shielding mesh 2, making it easier for users to clean the door device.

[0096] During cooking, the electric heating device 3 is controlled to work, and the electric heating device 3 generates heat. The electric heating device 3 is connected to the shielding mesh 2. Since the shielding mesh 2 has a strong heat transfer capacity and the shape and size of the shielding mesh 2 are adapted to the size of the outer glass 41 and the inner glass 42, the heat on the shielding mesh 2 can be evenly distributed to the outer glass 41 and the inner glass 42, increasing the temperature of the outer glass 41 and the inner glass 42, thereby avoiding the generation of condensation and preventing microwave leakage.

[0097] This embodiment also proposes a cooking device, which includes a cooking device body and a door device. The cooking device body forms a cooking cavity, and the door device is used to open and close the cooking cavity. The door device is the door device described above.

[0098] When the cooking equipment is cooking, the cooking device itself generates microwaves to heat the food inside the cooking cavity. At the same time, it controls the electric heating device 3 to work. The electric heating device 3 generates heat and is connected to the shielding mesh 2. Because the shielding mesh 2 has a strong heat transfer capacity and its shape and size are adapted to the outer glass 41 and inner glass 42, the heat on the shielding mesh 2 can be evenly distributed to the outer glass 41 and inner glass 42, increasing the temperature of the outer glass 41 and inner glass 42, thereby preventing the generation of condensation and also preventing microwave leakage. Example 2

[0099] In this embodiment, the heating device is a power supply circuit.

[0100] like Figure 3 , Figure 4 As shown, the door assembly of the cooking equipment includes a door frame 1, a transparent part, a shielding mesh 2, and a power supply circuit.

[0101] The door frame 1 is the base of the door assembly.

[0102] The other parts of the door assembly are installed on the door frame 1.

[0103] The door frame 1 is a square frame with a hollowed-out middle section.

[0104] The transparent part is located on the door frame 1, which closes the hollow part in the middle.

[0105] The transparent section allows users to observe the internal condition of the cooking equipment.

[0106] The transparent part is made of glass; in some other embodiments, the transparent part may also be made of other transparent materials.

[0107] The shielding mesh 2 is located on the door frame 1 or the transparent part.

[0108] The shielding mesh 2 is installed on the door frame 1 or the transparent part.

[0109] The shielding mesh 2 is used to shield microwaves inside the cooking equipment, preventing microwave leakage from the door of the cooking equipment and avoiding damage to organisms around the cooking equipment.

[0110] The size of the shielding mesh 2 is adapted to the size of the door device to improve the shielding effect.

[0111] In some embodiments, the size of the shielding mesh 2 is adapted to the size of the space enclosed by the door frame 1.

[0112] The power supply circuit is electrically connected to the shielding mesh 2, providing electrical energy to the shielding mesh 2. After receiving electrical energy, the shielding mesh 2 heats up, increasing the temperature of the transparent part and preventing condensation from forming in the transparent part.

[0113] The shielding mesh 2 is insulated from the door frame 1 or the transparent part to prevent electrical energy on the shielding mesh 2 from being conducted and causing electric shock hazard.

[0114] Since the shielding mesh 2 is arranged on the door device and is made of metal, the shielding mesh 2 directly receives electrical energy to generate heat, and the heating speed is fast. Heating the shielding mesh 2 makes the door device heat up quickly and evenly, so that the transparent part can also heat up quickly and evenly, thus avoiding the formation of condensation in the transparent part.

[0115] The transparent part includes an outer glass 41 and an inner glass 42 located on the door frame 1. Both the outer glass 41 and the inner glass 42 are installed on the door frame 1, and an installation space for installing a shielding mesh 2 is formed between the outer glass 41 and the inner glass 42. The shielding mesh 2 is located in the installation space between the outer glass 41 and the inner glass 42, and the shielding mesh 2 is connected to the door frame 1 through an insulating frame 21 to prevent the leakage of electrical energy from the shielding mesh 2.

[0116] The shielding mesh 2 can be installed on the door frame 1.

[0117] Alternatively, the shielding mesh 2 can be installed on the outer glass 41 or the inner glass 42 without contacting the door frame 1.

[0118] For example, the shielding mesh 2 can be installed on the inside of the outer glass 41.

[0119] Alternatively, the shielding mesh 2 can be installed on the outside of the inner glass 42.

[0120] In some other embodiments, the transparent portion includes glass located on the door frame 1 and a shielding mesh 2 embedded in the glass to prevent the leakage of electrical energy from the shielding mesh 2.

[0121] The power supply circuit includes a power source 7, a switch 6, and a wire 5. The wire 5 is connected to the power source 7 and the shielding mesh 2 through the switch 6.

[0122] Among them, the wire 5 connected to the positive terminal of the power supply 7 and the wire 5 connected to the negative terminal of the power supply 7 are respectively connected to the two opposite ends of the shielding mesh 2.

[0123] At least some of the wires 5 are installed and hidden inside the door frame 1.

[0124] The door assembly includes decorative glass 43 located on the outside of the door frame 1.

[0125] Decorative glass 43 forms the overall appearance of the door assembly.

[0126] The area of ​​the decorative glass 43 is matched with or slightly larger than the area of ​​the door assembly, which can prevent the user from directly contacting the door frame 1 and the outer glass 41.

[0127] The outer glass 41 and the inner glass 42 can insulate against heat radiation and reduce the temperature of the decorative glass 43.

[0128] The outer glass 41 and the inner glass 42 can also protect the shielding mesh 2. In particular, the inner glass 42 can also prevent food from splashing onto the shielding mesh 2, making it easier for users to clean the door device.

[0129] During cooking, the power supply circuit is activated to supply power to the shielding mesh 2. The shielding mesh 2 itself generates heat. Since the shape and size of the shielding mesh 2 are adapted to the size of the outer glass 41 and the inner glass 42, the heat generated by the shielding mesh 2 can be evenly distributed to the outer glass 41 and the inner glass 42, increasing the temperature of the outer glass 41 and the inner glass 42, thereby preventing the formation of condensation and preventing microwave leakage.

[0130] This embodiment also proposes a cooking device, which includes a cooking device body and a door device. The cooking device body forms a cooking cavity, and the door device is used to open and close the cooking cavity. The door device is the door device described above.

[0131] When the cooking device is cooking, the cooking device itself generates microwaves to heat the food inside the cooking cavity. At the same time, it controls the power supply circuit to operate, supplying power to the shielding mesh 2. The shielding mesh 2 itself generates heat. Since the shape and size of the shielding mesh 2 are adapted to the size of the outer glass 41 and the inner glass 42, the heat generated by the shielding mesh 2 can be evenly distributed to the outer glass 41 and the inner glass 42, increasing the temperature of the outer glass 41 and the inner glass 42, thereby preventing the generation of condensation and also preventing microwave leakage.

[0132] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A door device for a cooking appliance, comprising: Door frame; The transparent section is located on the door frame; Its characteristic is that it further includes: The shielding mesh is located on the door frame or the transparent part; A heating device is configured to provide energy to the shielding mesh, thereby increasing the temperature of the shielding mesh.

2. The door device of the cooking equipment according to claim 1, characterized in that, The heating device is an electric heating device, which is connected to the shielding mesh to provide heat to the shielding mesh. Alternatively, the heating device may be a power supply circuit, which is electrically connected to the shielding mesh to provide power to the shielding mesh, and the shielding mesh is insulated from the door frame or the transparent part.

3. The door device of the cooking equipment according to claim 2, characterized in that, The electric heating device is located inside the door frame and is in contact with the edge of the shielding mesh.

4. The door device of the cooking equipment according to claim 3, characterized in that, The transparent portion includes an outer glass layer and an inner glass layer located on the door frame, the shielding mesh is located between the outer glass layer and the inner glass layer, and the electric heating device is located inside the door frame.

5. The door device of the cooking equipment according to claim 2, characterized in that, When the heating device is a power supply circuit, The transparent portion includes an outer glass layer and an inner glass layer located on the door frame, and the shielding mesh is connected to the door frame through an insulating frame; or, the shielding mesh is installed on the outer glass layer or the inner glass layer and does not contact the door frame. Alternatively, the transparent portion may include glass located on the door frame and a shielding mesh embedded in the glass.

6. The door device of the cooking equipment according to claim 5, characterized in that, The power supply circuit includes a power source, a switch, and wires, with the wires connected to the power source and the shielding mesh via the switch.

7. The door device of the cooking equipment according to claim 6, characterized in that, The wire connected to the positive terminal of the power supply and the wire connected to the negative terminal are respectively connected to the two opposite ends of the shielding mesh.

8. The door device of the cooking equipment according to claim 6, characterized in that, At least some of the wiring is installed and hidden within the door frame.

9. The door device of the cooking equipment according to claim 1, characterized in that, The door assembly includes decorative glass located on the outside of the door frame.

10. A cooking apparatus, the cooking apparatus comprising a cooking device body and a door device, the cooking device body forming a cooking cavity, the door device being used to open and close the cooking cavity, characterized in that, The door device is the door device according to any one of claims 1-9.

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