Door body and microwave cooking appliance

Abstract

The application discloses a door body and a microwave cooking electric appliance. The door body comprises a first base plate, a second base plate, a choke and a bottom shell; the first base plate is arranged on the choke, the second base plate is arranged on the bottom shell, the choke is connected with the bottom shell, a cooling air duct is formed between the first base plate and the second base plate, the choke comprises a choke structure, the choke structure is provided with an air inlet duct and an air outlet duct in the height direction of the door body, the cooling air duct is communicated with the air inlet duct and the air outlet duct, a side wall of the air inlet duct is provided with a first air inlet hole, and a side wall of the air outlet duct is provided with a first air outlet hole. In the door body, the choke structure is provided with the air inlet duct and the air outlet duct, the cooling air duct formed between the first base plate and the second base plate is communicated with the air inlet duct and the air outlet duct, so that the heat dissipation airflow formed by the microwave cooking electric appliance can flow into the door body, the door body is actively cooled, and the heat dissipation efficiency of the door body is improved.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a door and a microwave cooking appliance. Background Technology

[0002] In related technologies, microwave steam ovens can generate microwaves or high-temperature steam to heat food inside the cooking cavity. The door of a microwave steam oven is equipped with chokes to prevent microwave leakage when the cooking cavity is closed. During the heating process, the door itself also heats up, becoming scalding hot to the touch. Currently, relying on natural air convection for heat dissipation is ineffective. Summary of the Invention

[0003] The present invention provides a door and a microwave cooking appliance to solve at least one of the above-mentioned technical problems.

[0004] An embodiment of the present invention provides a door body, the door body comprising a first substrate, a second substrate, a choke element, and a bottom shell;

[0005] The first substrate is disposed on the choke, the second substrate is disposed on the bottom shell, the choke is connected to the bottom shell, a cooling air duct is formed between the first substrate and the second substrate, the choke includes a choke structure, the choke structure is provided with an air inlet duct and an air outlet duct in the height direction of the door body, the cooling air duct connects the air inlet duct and the air outlet duct, the side wall of the air inlet duct is provided with a first air inlet hole, and the side wall of the air outlet duct is provided with a first air outlet hole.

[0006] In the aforementioned door body, the choke structure is provided with an air inlet duct and an air outlet duct. The cooling duct formed between the first substrate and the second substrate connects the air inlet duct and the air outlet duct, thereby allowing the heat dissipation airflow generated by the microwave cooking appliance to flow into the door body, actively dissipating heat from the door body and improving the heat dissipation efficiency of the door body.

[0007] In some embodiments, the side wall of the air inlet duct is provided with a second air outlet, and the air inlet duct is connected to the cooling duct through the second air outlet.

[0008] In some embodiments, the choke includes a mounting portion, the first substrate is disposed on the mounting portion, the choke structure includes a plurality of choke teeth and a connecting plate, the connecting plate connects the mounting portion and the choke teeth, the gap between two adjacent choke teeth forms the first air inlet, and the connecting plate is provided with a second air outlet.

[0009] In some embodiments, the sidewall of the air inlet duct is provided with a plurality of first air inlets and a plurality of second air outlets, the plurality of first air inlets being arranged along the length direction of the door body, and the plurality of second air outlets being arranged along the length direction of the door body.

[0010] In some embodiments, the side wall of the air outlet duct is provided with a second air inlet, and the air outlet duct is connected to the cooling duct through the second air inlet.

[0011] In some embodiments, the choke includes a mounting portion, the first substrate is disposed on the mounting portion, the choke structure includes a plurality of choke teeth and a connecting plate, the connecting plate connects the mounting portion and the choke teeth, the gap between two adjacent choke teeth forms the first air outlet, and the connecting plate is provided with a second air inlet.

[0012] In some embodiments, the sidewall of the air outlet duct is provided with a plurality of first air outlet holes and a plurality of second air inlet holes, the plurality of first air outlet holes being arranged along the length direction of the door body, and the plurality of second air inlet holes being arranged along the length direction of the door body.

[0013] In some embodiments, the choke structure has a first side air duct and a second side air duct along the length of the door body. The first side air duct connects the air inlet duct and the air outlet duct, and the second side air duct connects the air inlet duct and the air outlet duct.

[0014] In some embodiments, the door body includes an outer shell that surrounds the choke structure and the bottom shell in the circumferential direction of the door body. The outer shell is provided with a first ventilation hole and a second ventilation hole. The first air inlet hole communicates with the outside of the outer shell through the first ventilation hole, and the first air outlet hole communicates with the outside of the outer shell through the second ventilation hole.

[0015] In some embodiments, the door body includes a door seal that seals the outer casing to the choke structure.

[0016] The present invention provides a microwave cooking appliance including the door body described in any of the above embodiments.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0019] Figure 1 This is an exploded view of the door body according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the door body according to an embodiment of the present invention;

[0021] Figure 3 This is another cross-sectional schematic diagram of the door body according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram showing the connection of the door handle, outer panel, bottom shell and first substrate according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the bottom shell structure according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the choke component according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the choke and the door hook according to an embodiment of the present invention;

[0026] Figure 8 This is a structural schematic diagram of the hinge, outer shell, and bottom shell according to an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the outer shell according to an embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the door hook according to an embodiment of the present invention;

[0029] Figure 11 This is a partial structural schematic diagram of a microwave cooking appliance according to an embodiment of the present invention;

[0030] Figure 12 This is a cross-sectional schematic diagram of a microwave cooking appliance according to an embodiment of the present invention;

[0031] Figure 13 This is a schematic diagram of the structure of the fan assembly according to an embodiment of the present invention.

[0032] Explanation of key figure labels:

[0033] Microwave cooking appliance 1000, door body 2000, first substrate 100, second substrate 200, choke 300, bottom shell 400, outer shell 500, door seal 600, hinge 700, outer panel 800, door handle 900, door hook 1001, cooling air duct 150, choke structure 301, air inlet duct 302, air outlet duct 303, first air inlet 304, first air outlet 305, second air outlet 306, mounting part 307, choke tooth 308, connecting plate 309, second air inlet 310, first side Side air duct 311, second side air duct 312, first ventilation hole 504, second ventilation hole 505, cavity 1, cooking cavity 2, opening 3, electrical component 4, first electrical component 5, second electrical component 6, fan component 7, impeller 8, volute 9, inlet 10, outlet 11, flange hole 12, mounting hole 13, through hole 14, fixing post 15, first threaded hole 16, second threaded hole 17, slot 18, buckle 19, receiving groove 20, fixing part 21, connecting hole 22, limiting post 23, limiting hole 24, motor 25. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0036] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

[0041] Please see Figures 1 to 3This invention provides a door body 2000, which includes a first substrate 100, a second substrate 200, a choke element 300, and a bottom shell 400. The first substrate 100 is disposed on the choke element 300, and the second substrate 200 is disposed on the bottom shell 400, with the choke element 300 connected to the bottom shell 400. A cooling air duct 150 is formed between the first substrate 100 and the second substrate 200. The choke element 300 includes a choke structure 301, which has an air inlet duct 302 and an air outlet duct 303 in the height direction of the door body 2000, and the cooling air duct 150 connects the air inlet duct 302 and the air outlet duct 303. The side wall of the air inlet duct 302 has a first air inlet hole 304, and the side wall of the air outlet duct 303 has a first air outlet hole 305.

[0042] In the aforementioned door body 2000, the choke structure 301 is provided with an air inlet duct 302 and an air outlet duct 303. The cooling air duct 150 formed between the first substrate 100 and the second substrate 200 connects the air inlet duct 302 and the air outlet duct 303, thereby allowing the heat dissipation airflow generated by the microwave cooking appliance 1000 to flow into the door body 2000, actively dissipating heat from the door body 2000 and improving the heat dissipation efficiency of the door body 2000.

[0043] Specifically, the door 2000 can be used with microwave cooking appliances 1000. Please refer to... Figure 11 The microwave cooking appliance 1000 includes an electrical component 4, a cavity 1, and a fan component 7.

[0044] Electrical component 4 in microwave cooking appliance 1000 is responsible for power supply, control, signal transmission, operation execution and protection functions, thereby ensuring the normal operation of microwave cooking appliance 1000.

[0045] The cavity 1 has a cooking chamber 2 and an opening 3. A door 2000 is rotatably connected to the cavity 1 to open and close the opening 3. Food can enter and exit the cooking chamber 2 through the opening 3 for cooking. The door 2000 can be used to close the opening 3 to allow food to be cooked in the closed cooking chamber 2.

[0046] The fan assembly 7 can dissipate heat from components such as the door body 2000 and electrical components 4.

[0047] Optionally, the microwave cooking appliance 1000 may include, but is not limited to, a microwave oven, microwave oven, microwave steamer, microwave cooking machine, microwave-steam-grill combination machine, or other equipment that uses microwaves to cook food.

[0048] The first substrate 100 and the second substrate 200 are spaced apart along the width direction of the door body 2000, and a cooling air duct 150 is formed between the first substrate 100 and the second substrate 200. Figures 1 to 3In this structure, the second substrate 200 is the inner substrate, located away from the door handle 900, and the first substrate 100 is the outer substrate, located close to the door handle 900. The door body 2000 also includes an outer panel 800, which covers the outside of the outer substrate. The door handle 900 is located on the side of the outer panel 800 opposite to the outer substrate.

[0049] Understandably, to facilitate user observation of the food's condition within the cooking cavity 2, the first substrate 100 and the second substrate 200 can be made of glass to provide a degree of transparency and occupy a relatively large area. When the heat dissipation airflow generated by the microwave cooking appliance 1000 flows through the cooling duct 150 between the first substrate 100 and the second substrate 200, it can exchange heat with the door 2000 to a greater extent, thus dissipating heat more effectively from the door 2000.

[0050] The choke 300 is a structural component in the microwave cooking appliance 1000 used to shield microwave leakage, and can be made of metal or metal composite material.

[0051] The bottom shell 400 is the supporting structure of the door body 2000. It can be used to fix other components and parts of the door body 2000, and provide mechanical strength, thereby extending the service life of the door body 2000 to a certain extent.

[0052] In related technologies, microwave steam ovens can generate microwaves or high-temperature steam to heat food inside the cooking cavity. The door of a microwave steam oven is equipped with chokes to prevent microwave leakage when the cooking cavity is closed. During the heating process, the door itself also heats up, becoming scalding hot to the touch. Currently, relying on natural air convection for heat dissipation is ineffective.

[0053] In this embodiment of the invention, the choke structure 301 is provided with an air inlet duct 302 and an air outlet duct 303. The heat dissipation airflow generated by the microwave cooking appliance 1000 enters the air inlet duct 302 through the first air inlet hole 304 and flows into the door body 2000. It exchanges heat with the door body 2000 in the cooling duct 150 to achieve active heat dissipation of the door body 2000. Then, it flows out of the door body 2000 through the first air outlet hole 305 and the air outlet duct 303 to transfer the heat of the door body 2000 to the outside of the door body 2000.

[0054] Understandably, the choke structure 301 is equipped with an air inlet duct 302 and an air outlet duct 303, which can prevent microwave leakage from the door 2000 while simultaneously achieving active heat dissipation of the door 2000, improving the heat dissipation effect of the door 2000, and eliminating the need for additional structural components to form air ducts, thus simplifying the structure of the door 2000.

[0055] In one embodiment, the first substrate 100 is fixed to the choke 300 by applying adhesive. The choke 300 may have positioning lines printed on it to facilitate positioning when the first substrate 100 is installed.

[0056] In one implementation, please refer to Figure 4 and Figure 5 The bottom shell 400 is provided with a slot 18 and a buckle 19, and the second base plate 200 can be fixed on the bottom shell 400 through the slot 18 and the buckle 19.

[0057] In one implementation, please refer to Figure 4 and Figure 5 The bottom shell 400 is provided with a fixing post 15, and the fixing post 15 is provided with a first threaded hole 16 for fixing and connecting the choke 300.

[0058] In one implementation, please refer to Figure 4 and Figure 5 The bottom shell 400 is provided with a limiting post 23, and the choke 300 is provided with a limiting hole 24. The limiting post 23 and the limiting hole 24 can cooperate with each other to limit the relative position between the bottom shell 400 and the choke 300.

[0059] Optionally, the size, shape, and number of the first air inlet 304 and the first air outlet 305 can be selected according to factors such as microwave leakage prevention requirements, heat dissipation requirements, space requirements, and stability. This invention does not impose specific limitations on these factors.

[0060] It should be noted that, in Figure 3 In the image, the arrows indicate the direction of airflow for heat dissipation.

[0061] In some implementations, please refer to Figure 2 and Figure 3 The side wall of the air inlet duct 302 is provided with a second air outlet 306, and the air inlet duct 302 is connected to the cooling duct 150 through the second air outlet 306.

[0062] In the above embodiment, the air inlet duct 302 is connected to the cooling duct 150 through the second air outlet 306, which facilitates the smooth flow of heat dissipation air from the air inlet duct 302 to the cooling duct 150, and achieves active heat dissipation of the door body 2000, thereby improving heat dissipation efficiency.

[0063] Specifically, the side wall of the air inlet duct 302 is provided with a first air inlet 304 and a second air outlet 306. The first air inlet 304 is located on the side wall of the air inlet duct 302 away from the cooling air duct 150, and the second air outlet 306 is located on the side wall of the air inlet duct 302 close to the cooling air duct 150. The air inlet duct 302 is connected to the cooling air duct 150 through the second air outlet 306.

[0064] Optionally, the size, shape, and number of the second air outlet 306 can be selected according to factors such as microwave leakage prevention requirements, heat dissipation requirements, space requirements, and stability. This invention does not impose specific limitations on these factors.

[0065] In some implementations, please refer to Figure 2 and Figure 7 The choke 300 includes a mounting portion 307, and a second substrate 200 is disposed on the mounting portion 307. The choke structure 301 includes a plurality of choke teeth 308 and a connecting plate 309. The connecting plate 309 connects the mounting portion 307 and the choke teeth 308. The gap between two adjacent choke teeth 308 forms a first air inlet 304. The connecting plate 309 is provided with a second air outlet 306.

[0066] In the above embodiment, the gap between two adjacent choke teeth 308 forms a first air inlet 304, and the connecting plate 309 is provided with a second air outlet 306, which can prevent microwaves from leaking from the door 2000 while realizing active heat dissipation of the door 2000 and improving the heat dissipation efficiency of the door 2000.

[0067] Specifically, the mounting section 307 can be used to mount the second substrate 200, while further preventing microwave leakage.

[0068] In one embodiment, the outer panel 800, the first substrate 100, and the second substrate 200 are made of glass. The second substrate 200 is mounted on the side of the mounting portion 307 facing away from the cooling air duct 150, and the mounting portion 307 may be provided with multiple connecting holes (not shown). The user can observe the state of the food inside the cooking cavity 2 through the outer panel 800, the first substrate 100, the multiple connecting holes, and the second substrate 200.

[0069] The choke teeth 308 are the main part of the choke 300 responsible for preventing microwave leakage. They are toothed and arranged in rows.

[0070] The mounting section 307 can be connected to the choke tooth 308 via the connecting plate 309 to ensure a stable connection between the choke tooth 308 and other components, and to maintain the structural integrity of the choke structure 301.

[0071] In this embodiment of the invention, the gap between two adjacent choke teeth 308 forms a first air inlet 304, and the connecting plate 309 is provided with a second air outlet 306. The heat dissipation airflow generated by the microwave cooking appliance 1000 flows into the air inlet duct 302 through the gap between the two adjacent choke teeth 308, and then flows out of the air inlet duct 302 through the second air outlet 306 on the connecting plate 309.

[0072] In some implementations, please refer to Figure 2 and Figure 7The side wall of the air inlet duct 302 is provided with a plurality of first air inlets 304 and a plurality of second air outlets 306. The plurality of first air inlets 304 are arranged along the length of the door body 2000, and the plurality of second air outlets 306 are arranged along the length of the door body 2000.

[0073] In the above embodiment, multiple first air inlets 304 are arranged along the length of the door 2000, and multiple second air outlets 306 are arranged along the length of the door 2000. This can optimize the airflow path within the cooling duct 150, allowing the airflow generated by the microwave cooking appliance 1000 to fully exchange heat with the door 2000, thereby improving the heat dissipation effect to a certain extent.

[0074] Specifically, the first air inlet 304 is located on the side wall of the air inlet duct 302 away from the cooling duct 150, and the second air outlet 306 is located on the side wall of the air inlet duct 302 close to the cooling duct 150. Multiple first air inlets 304 are arranged uniformly or unevenly along the length of the door 2000, and multiple second air outlets 306 are arranged uniformly or unevenly along the length of the door 2000.

[0075] In this embodiment of the invention, when the heat dissipation airflow flows into the cooling air duct 150 through the first air inlet 305 and the second air outlet 306, the airflow can flow along the airflow path formed according to the position, size and shape of the first air inlet 305 and the second air outlet 306, which is conducive to the uniform heat dissipation of the door 2000 in the length direction and improves the heat dissipation effect of the door 2000.

[0076] Optionally, the number, size, and shape of the first air inlet 304 and the second air outlet 306 may be the same or different.

[0077] In some implementations, please refer to Figure 2 and Figure 3 The side wall of the air outlet duct 303 is provided with a second air inlet 310, and the air outlet duct 303 is connected to the cooling air duct 150 through the second air inlet 310.

[0078] In the above embodiment, the side wall of the air outlet duct 303 is provided with a second air inlet 310. The air outlet duct 303 is connected to the cooling duct 150 through the second air inlet 310, which facilitates the smooth flow of heat dissipation air from the cooling duct 150 to the air outlet duct 303, and transfers the heat of the door 2000 to the outside of the door 2000 to achieve active heat dissipation of the door 2000 and improve heat dissipation efficiency.

[0079] Specifically, the side wall of the air outlet duct 303 is provided with a first air outlet 305 and a second air inlet 310. The first air outlet 305 is located on the side wall of the air outlet duct 303 away from the cooling air duct 150, and the second air inlet 310 is located on the side wall of the air outlet duct 303 close to the cooling air duct 150. The air outlet duct 303 is connected to the cooling air duct 150 through the second air inlet 310.

[0080] Optionally, the size, shape, and number of the second air inlet 310 and the first air outlet 305 can be selected according to factors such as microwave leakage prevention requirements, heat dissipation requirements, space requirements, and stability. This invention does not impose specific limitations on these factors.

[0081] In some implementations, please refer to Figure 2 , Figure 6 and Figure 7 The choke 300 includes a mounting portion 307, and a second substrate 200 is disposed on the mounting portion 307. The choke structure 301 includes a plurality of choke teeth 308 and a connecting plate 309. The connecting plate 309 connects the mounting portion 307 and the choke teeth 308. The gap between two adjacent choke teeth 308 forms a first air outlet 305. The connecting plate 309 is provided with a second air inlet 310.

[0082] In the above embodiment, the gap between two adjacent choke teeth 308 forms a first air outlet 305, and the connecting plate 309 is provided with a second air inlet 310, which can prevent microwaves from leaking from the door 2000 while realizing active heat dissipation of the door 2000 and improving the heat dissipation efficiency of the door 2000.

[0083] Specifically, the mounting section 307 can be used to mount the second substrate 200, while further preventing microwave leakage.

[0084] In one embodiment, the outer panel 800, the first substrate 100, and the second substrate 200 are made of glass. The second substrate 200 is mounted on the side of the mounting portion 307 facing away from the cooling air duct 150, and the mounting portion 307 may be provided with multiple connecting holes. The user can observe the state of the food inside the cooking cavity 2 through the outer panel 800, the first substrate 100, the multiple connecting holes, and the second substrate 200.

[0085] The choke teeth 308 are the main part of the choke 300 responsible for preventing microwave leakage. They are toothed and arranged in rows.

[0086] The mounting section 307 can be connected to the choke tooth 308 via the connecting plate 309 to ensure a stable connection between the choke tooth 308 and other components, and to maintain the structural integrity of the choke structure 301.

[0087] In this embodiment of the invention, the gap between two adjacent choke teeth 308 forms a first air outlet 305, and the connecting plate 309 is provided with a second air inlet 310. The heat dissipation airflow generated by the microwave cooking appliance 1000 flows into the air outlet duct 303 through the second air inlet 310 on the connecting plate 309, and then flows out of the air outlet duct 303 through the gap between two adjacent choke teeth 308.

[0088] It should be noted that multiple choke teeth 308 are arranged in a uniform row and form a choke element 300 around the mounting plate through a connecting plate 309. In the height or length direction of the door body 2000, the choke element 300 has a symmetrical structure. That is, in the air inlet duct 302, the gap between two adjacent choke teeth 308 is located on the side wall of the air inlet duct 302 away from the cooling duct 150; in the air outlet duct 303, the gap between two adjacent choke teeth 308 is located on the side wall of the air outlet duct 303 away from the cooling duct 150.

[0089] In some implementations, please refer to Figure 2 and Figure 6 The side wall of the air outlet duct 303 is provided with a plurality of first air outlet holes 305 and a plurality of second air inlet holes 310. The plurality of first air outlet holes 305 are arranged along the length direction of the door body 2000, and the plurality of second air inlet holes 310 are arranged along the length direction of the door body 2000.

[0090] In the above embodiments, multiple first air outlets 305 are arranged along the length of the door body 2000, and multiple second air inlets 310 are arranged along the length of the door body 2000. This can ensure the structural strength of the door body 2000 to a certain extent, while allowing the heat dissipation airflow to transfer the heat of the door body 2000 to the outside of the door body 2000 more quickly, thus avoiding heat accumulation and poor performance to a certain extent.

[0091] Specifically, the first air outlet 305 is located on the side wall of the air outlet duct 303 away from the cooling air duct 150, and the second air inlet 310 is located on the side wall of the air outlet duct 303 close to the cooling air duct 150. Multiple second air inlets 310 are arranged uniformly or unevenly along the length of the door 2000, and multiple first air outlets 305 are arranged uniformly or unevenly along the length of the door 2000.

[0092] In this embodiment of the invention, when the heat dissipation airflow flows out of the air outlet duct 303 through the second air inlet 310 and the first air outlet 305, the airflow can transfer the heat of the door 2000 to the outside of the door 2000, thus ensuring the effectiveness of heat dissipation of the door 2000 to a certain extent.

[0093] Optionally, the number, size, and shape of the second air inlet 310 and the first air outlet 305 may be the same or different.

[0094] In some implementations, please refer to Figures 1 to 3 and Figure 7 The choke structure 301 has a first side air duct 311 and a second side air duct 312 in the length direction of the door body 2000. The first side air duct 311 connects the air inlet duct 302 and the air outlet duct 303, and the second side air duct 312 connects the air inlet duct 302 and the air outlet duct 303.

[0095] In the above embodiments, the choke structure 301 is provided with a first side air duct 311 and a second side air duct 312 in the length direction of the door body 2000, which increases the heat dissipation air duct of the door body 2000 and can further improve the heat dissipation efficiency of the door body 2000.

[0096] Specifically, the first side air duct 311 and the second side air duct 312 are respectively located at both ends of the door body 2000 along its length. In the first side air duct 311, the heat dissipation airflow generated by the microwave cooking appliance 1000 can flow from the air inlet duct 302 to the first side air duct 311, and then to the air outlet duct 303. In the second side air duct 312, the heat dissipation airflow generated by the microwave cooking appliance 1000 can flow from the air inlet duct 302 to the second side air duct 312, and then to the air outlet duct 303.

[0097] It is understandable that in the first side air duct 311 and the second side air duct 312, the heat dissipation airflow can further exchange heat with the heat generated by the door body 2000, thereby improving the heat dissipation effect of the door body 2000.

[0098] In some implementations, please combine 2 and Figure 9 The door body 2000 includes an outer shell 500, which surrounds the choke structure 301 and the bottom shell 400 along the circumferential direction of the door body 2000. The outer shell 500 is provided with a first ventilation hole 504 and a first ventilation hole 505. The first air inlet 304 is connected to the outside of the outer shell 500 through the first ventilation hole 504, and the first air outlet 305 is connected to the outside of the outer shell 500 through the first ventilation hole 505.

[0099] In the above embodiment, the first air inlet 304 is connected to the outside of the outer shell 500 through the first ventilation hole 504, and the first air outlet 305 is connected to the outside of the outer shell 500 through the first ventilation hole 505. This can protect the internal structure of the door body 2000 while allowing the heat dissipation airflow generated by the microwave cooking appliance 1000 to flow into the door body 2000 to actively dissipate heat from the door body 2000.

[0100] Specifically, the outer shell 500 is the outermost protective structure on the side of the door 2000. The outer shell 500 can prevent the choke structure 301 and the bottom shell 400 from being affected by the external environment.

[0101] The outer shell 500 is connected to the bottom shell 400, the choke 300 is connected to the bottom shell 400, and the outer shell 500 surrounds the choke structure 301 and the bottom shell 400 along the circumferential direction of the door body 2000.

[0102] The first ventilation hole 504 and the second ventilation hole 505 are located at opposite ends of the height of the door 2000. The heat generated by the microwave cooking appliance 1000 flows into the first air inlet 304 through the first ventilation hole 504 and then into the air inlet duct 302. After that, it flows into the cooling duct 150 to actively dissipate heat from the door 2000. The heat dissipation airflow then flows into the air outlet duct 303 and exits through the first air outlet 305 and the first ventilation hole 505 to discharge the heat from the door 2000 to the outside.

[0103] Optionally, the size, shape, and number of the first ventilation hole 504 and the second ventilation hole 505 can be selected according to factors such as microwave leakage prevention requirements, heat dissipation requirements, space requirements, and stability. This invention does not impose specific limitations on these factors.

[0104] Optionally, the size, shape, and number of the first ventilation hole 504 and the first air inlet 304 may be the same or different. The size, shape, and number of the second ventilation hole 505 and the first air outlet 305 may be the same or different.

[0105] In one implementation, please refer to Figure 8 The bottom shell 400 is provided with a second threaded hole 17, and correspondingly, the outer shell 500 is provided with a through hole 14. The outer shell 500 can be threadedly fastened to the bottom shell 400 by fasteners passing through the through hole 14 and the second threaded hole 17 in sequence. Optionally, the fasteners may include, but are not limited to, screws or bolts.

[0106] In one embodiment, the bottom shell 400 is provided with a notch, and the outer shell 500 is provided with a locking block, which can lock the bottom shell 400.

[0107] In some implementations, please refer to Figure 1 and Figure 2 The door body 2000 includes a door seal 600, which seals and connects the outer shell 500 and the choke structure 301.

[0108] In the above embodiments, the door seal 600 can prevent high-temperature water vapor, high-temperature gas or heat inside the microwave cooking appliance 1000 from leaking out of the door 2000, thus ensuring the airtightness of the door 2000 to a certain extent.

[0109] Specifically, the door seal 600 is a sealing element disposed between the outer shell 500 of the door body 2000 and the choke structure 301. Optionally, the door seal 600 may be made of an elastic material, such as silicone, rubber or other high-temperature resistant and aging-resistant materials.

[0110] In the optional implementation, please combine Figure 1 and Figure 5 The door body 2000 includes a hinge 700, and the bottom shell 400 has a receiving groove 20. The hinge 700 is disposed in the receiving groove 20 and fixed to the bottom shell 400. The hinge 700 is a mechanical connector that can be used to connect two objects. In this embodiment of the invention, the hinge 700 can be used to connect the door body 2000 and the cavity 1, so that the door body 2000 can be rotatably connected to the cavity 1.

[0111] In the optional implementation, please combine Figure 1 and Figure 11 The door 2000 includes an outer panel 800, which is fixedly connected to the bottom shell 400. In the microwave cooking appliance 1000, the outer panel 800 is located on the side of the door 2000 away from the cooking cavity 2. The outer panel 800 protects other components located inside the door 2000 from external influences to a certain extent. In one embodiment, the outer panel 800 is made of glass and has a certain degree of transparency, allowing the user to observe the state of the food inside the cooking cavity 2.

[0112] In one embodiment, the outer panel 800 is fixed to the bottom shell 400 by applying adhesive. Positioning lines may be screen-printed on the bottom shell 400 to facilitate positioning when installing the outer panel 800.

[0113] In the optional implementation, please combine Figure 1 and Figure 11 The door 2000 includes a door handle 900, an outer panel 800 has a connecting hole 22, and a bottom shell 400 has a fixing part 21. The door handle 900 is connected to the outer panel 800 through the connecting hole 22 and the fixing part 21. In the microwave cooking appliance 1000, the door handle 900 is located on the side of the outer panel 800 away from the cooking cavity 2. The door handle 900 can be made of plastic or other sturdy materials and is used by the user to open and close the opening 3 of the door 2000.

[0114] In the optional implementation, please combine Figure 1 , Figure 7 , Figure 10 and Figure 11 The door 2000 includes a door hook 1001, which has a mounting hole 13. The choke 300 has a flanged hole 12. Fasteners pass through the mounting hole 13 and the flanged hole 12 to connect the door hook 1001 to the choke 300. The door hook 1001 can be used to fix the door 2000 in the closed opening 3 position, which can prevent the door 2000 from opening automatically or loosening during the operation of the microwave cooking appliance 1000. The flanged hole 12 can be thickened and reinforced to make the door hook 1001 more securely connected to the choke 300.

[0115] Please see Figures 11 to 13 The present invention provides a microwave cooking appliance 1000 including the door 2000 of any of the above embodiments.

[0116] In the above embodiments, the microwave cooking appliance 1000 includes a door 2000 as described in any of the above embodiments, which allows the heat dissipation airflow generated by the microwave cooking appliance 1000 to flow into the door 2000, thereby actively dissipating heat from the door 2000 and improving the heat dissipation efficiency of the door 2000.

[0117] Specifically, the microwave cooking appliance 1000 may include an electrical component 4, a cavity 1, and a fan component 7.

[0118] Electrical component 4 in microwave cooking appliance 1000 is responsible for power supply, control, signal transmission, operation execution and protection functions, thereby ensuring the normal operation of microwave cooking appliance 1000.

[0119] The cavity 1 has a cooking chamber 2 and an opening 3. A door 2000 is rotatably connected to the cavity 1 to open and close the opening 3. Food can enter and exit the cooking chamber 2 through the opening 3 for cooking. The door 2000 can be used to close the opening 3 to allow food to be cooked in the closed cooking chamber 2.

[0120] The fan assembly 7 can dissipate heat from components such as the door body 2000 and electrical components 4.

[0121] Optionally, the fan assembly 7 and the electrical assembly 4 are located at the top of the cavity 1. In one embodiment, as... Figure 11 and Figure 12 As shown, the microwave cooking appliance 1000 is configured such that when the fan assembly 7 is working, it forms an airflow that flows sequentially through the electrical assembly 4, the first air inlet 304, the air inlet duct 302, the cooling duct 150, and the air outlet duct 303.

[0122] In one implementation, such as Figure 11 and Figure 13 As shown, electrical component 4 includes a first electrical component 5 and a second electrical component 6. Fan component 7 includes a motor 25, an impeller 8, and a volute 9. The volute 9 has an inlet 10 and an outlet 11. The first electrical component 5 is located outside the outlet 11, and the second electrical component 6 is located outside the inlet 10. When fan component 7 is working, airflow can flow through the second electrical component 6 under negative pressure and flow into fan component 7. Airflow from fan component 7 can flow through the first electrical component 5 and flow to the first air inlet 304 to dissipate heat from the door 2000.

[0123] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more steps for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0125] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, combinations, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A door body, characterized in that, Includes a first substrate, a choke element, and a bottom shell; The first substrate is disposed on the choke member and the bottom shell. The choke member is connected to the bottom shell. A cooling air duct is formed between the first substrate and the first substrate. The choke member includes a choke structure. The choke structure has an air inlet duct and an air outlet duct in the height direction of the door body. The cooling air duct connects the air inlet duct and the air outlet duct. The side wall of the air inlet duct has a first air inlet hole, and the side wall of the air outlet duct has a first air outlet hole.

2. The door body according to claim 1, characterized in that, The side wall of the air inlet duct is provided with a second air outlet, and the air inlet duct is connected to the cooling duct through the second air outlet.

3. The door body according to claim 2, characterized in that, The choke includes a mounting portion, the first substrate is disposed on the mounting portion, the choke structure includes a plurality of choke teeth and a connecting plate, the connecting plate connects the mounting portion and the choke teeth, the gap between two adjacent choke teeth forms the first air inlet hole, and the connecting plate is provided with a second air outlet hole.

4. The door body according to claim 2 or 3, characterized in that, The side wall of the air inlet duct is provided with a plurality of first air inlets and a plurality of second air outlets. The plurality of first air inlets are arranged along the length direction of the door body, and the plurality of second air outlets are arranged along the length direction of the door body.

5. The door body according to claim 1, characterized in that, The side wall of the air outlet duct is provided with a second air inlet hole, and the air outlet duct is connected to the cooling duct through the second air inlet hole.

6. The door body according to claim 5, characterized in that, The choke includes a mounting portion, the first substrate is disposed on the mounting portion, the choke structure includes a plurality of choke teeth and a connecting plate, the connecting plate connects the mounting portion and the choke teeth, the gap between two adjacent choke teeth forms the first air outlet, and the connecting plate is provided with a second air inlet.

7. The door body according to claim 5 or 6, characterized in that, The side wall of the air outlet duct is provided with a plurality of first air outlet holes and a plurality of second air inlet holes. The plurality of first air outlet holes are arranged along the length direction of the door body, and the plurality of second air inlet holes are arranged along the length direction of the door body.

8. The door body according to claim 1, characterized in that, The choke structure has a first side air duct and a second side air duct along the length of the door body. The first side air duct connects the air inlet duct and the air outlet duct, and the second side air duct connects the air inlet duct and the air outlet duct.

9. The door body according to claim 1, characterized in that, The door body includes an outer shell, which surrounds the choke structure and the bottom shell along the circumferential direction of the door body. The outer shell is provided with a first ventilation hole and a second ventilation hole. The first air inlet hole is connected to the outside of the outer shell through the first ventilation hole, and the first air outlet hole is connected to the outside of the outer shell through the second ventilation hole.

10. The door body according to claim 9, characterized in that, The door body includes a door seal, which seals the outer shell and the choke structure.

11. A microwave cooking appliance, characterized in that, Includes the door body as described in any one of claims 1-10.

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