Door components and cooking utensils

Abstract

This invention provides a door assembly and a cooking appliance. The door assembly, used in the cooking appliance, includes: a main body; multiple partitions located within the main body, the partitions being sequentially connected to the main body along a direction away from the cooking cavity of the cooking appliance; and multiple air guide channels formed between any two adjacent partitions and between the inner wall of the main body near the cooking cavity and adjacent partitions. One end of each air guide channel is connected to the outside, and the other end is connected to the heat dissipation cavity of the cooking appliance. The air guide channels are used to exhaust airflow from the heat dissipation cavity to cool the door assembly. Thus, on the one hand, heat dissipation can be achieved through multiple air guide channels, preventing damage to the door assembly from high temperatures within the cooking cavity, extending the service life and reliability of the door assembly; on the other hand, it can effectively reduce the temperature of the outer wall of the door assembly facing the outside, preventing burns to users due to excessively high outer wall temperatures, and improving product safety.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically relating to a door assembly and a cooking utensil. Background Technology

[0002] Existing microwave-steam-grill combination ovens typically do not have a self-cleaning function. However, when microwave-steam-grill combination ovens with self-cleaning functions perform high-temperature self-cleaning, the temperature inside the cooking cavity becomes too high, and the oven doors in existing technologies usually cannot withstand temperatures of 450°C. 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] Therefore, the first objective of this invention is to provide a door assembly.

[0005] The second objective of this invention is to provide a cooking utensil.

[0006] To achieve at least one of the above objectives, according to a first aspect of the present invention, a door assembly is provided for use in a cooking appliance. The door assembly includes: a main body; a plurality of partitions located within the main body, the plurality of partitions being sequentially connected to the main body along a direction away from the cooking cavity of the cooking appliance; and a plurality of air guide channels formed between any two adjacent partitions and between the inner wall of the main body near the cooking cavity and adjacent partitions, one end of any air guide channel communicating with the outside and the other end communicating with the heat dissipation cavity of the cooking appliance, the air guide channels being used to discharge airflow from the heat dissipation cavity to cool the door assembly.

[0007] The door assembly proposed in this application can be used in a cooking appliance, which includes a housing. The door assembly is movably connected to the housing and can move relative to the housing between different positions. The housing includes a cooking cavity for containing food ingredients, and the cooking appliance can cook the food ingredients within the cooking cavity. When the door assembly moves between different positions, it can open or close the cooking cavity.

[0008] In one possible technical solution, the cooking appliance is a microwave-steam-grill combination appliance with a high-temperature self-cleaning function. When the appliance performs high-temperature self-cleaning inside the cooking cavity, the temperature can reach up to 450℃, causing the grease inside to carbonize and achieve the self-cleaning function. Conventional doors cannot withstand temperatures of 450℃. On the one hand, this can easily damage the door due to the high temperature, causing some parts inside the door to fail. On the other hand, because the door cannot effectively insulate against the high temperature inside the cooking cavity, the outer wall of the door becomes too hot, and the user is easily burned.

[0009] To avoid the above problems, this application proposes a door assembly suitable for high-temperature environments. This door assembly includes multiple air ducts that dissipate heat from the door assembly, thereby reducing its temperature. The door assembly includes a main body and multiple partitions. The main body has a cavity structure, and the partitions are located within the main body. The partitions form air ducts for ventilation. All partitions are connected to the main body to maintain their fixation relative to it. Furthermore, the partitions are arranged sequentially in a direction away from the cooking cavity, thus forming multiple air ducts through the partitions and the wall of the main body.

[0010] Specifically, each of the two adjacent partitions and the inner wall of the main body near the cooking cavity, along with its adjacent partition, forms an air guide channel, resulting in multiple air guide channels within the main body. The cooking appliance used in the door assembly also includes a heat dissipation cavity, which contains a heat dissipation device for cooling the cooking appliance. This device generates airflow, and by expelling the airflow outside the cooking appliance, heat dissipation is achieved. One end of each air guide channel connects to the outside, and the other end connects to the heat dissipation cavity. The airflow within the heat dissipation cavity can be exhausted to the outside through the air guide channels in the door assembly. This not only dissipates heat from the door assembly, preventing damage due to excessive heat inside, but also effectively reduces the temperature of the door assembly's exterior wall by using multiple partitions, preventing burns to the user. Furthermore, the exhaust of airflow from the heat dissipation cavity through the air guide channels in the door assembly also dissipates heat within the cavity, thus cooling the cooking appliance.

[0011] In one possible technical solution, there are two partitions. The two partitions and the partition near the inner wall of the main body each form an air guide channel. In this way, the door assembly has two air guide channels. Compared with a door with a single air guide channel, this application can improve the heat dissipation effect of the door assembly by setting at least two air guide channels in the door assembly, and can also provide heat insulation through multiple partitions to prevent the outer wall temperature of the door assembly from becoming too high.

[0012] By setting multiple partitions in the main body, multiple air guide channels can be formed through the partitions, and the airflow in the heat dissipation cavity of the cooking appliance can be discharged to the outside through the air guide channels. On the one hand, the heat dissipation of the door component can be achieved through multiple air guide channels, avoiding damage to the door component caused by the high temperature in the cooking cavity, thus extending the service life and reliability of the door component. On the other hand, it can effectively reduce the temperature of the wall surface of the door component facing the outside, preventing users from being burned due to excessively high temperature of the outer wall of the door component, thus improving the safety of the product.

[0013] According to the door assembly described above, the present invention may also have the following distinguishing technical features:

[0014] In the above technical solution, the main body further includes: a middle frame assembly; a mounting bracket connected to the middle frame assembly, the mounting bracket being located on the side of the middle frame assembly away from the cooking cavity, and multiple partitions being located on both sides of the mounting bracket.

[0015] In this technical solution, the structure of the main body is defined. The main body includes a middle frame assembly and a mounting bracket, which are used to fix multiple partitions. The mounting bracket is located on the side of the middle frame assembly opposite to the cooking cavity and is connected to the middle frame assembly, with a gap between the mounting bracket and the middle frame assembly. Specifically, the mounting bracket can be connected to the middle frame assembly by screws or other connection methods. Further, at least some of the partitions are connected to the mounting bracket, and at least some of the partitions are connected to the middle frame assembly, thereby achieving the installation and fixation of the multiple partitions.

[0016] Furthermore, multiple partitions are located on both sides of the mounting frame, so that there is a gap between two adjacent partitions, and the two adjacent partitions enclose an air guide channel. The inner wall of the middle frame assembly constitutes the inner wall of the main body, and there is a gap between the partition adjacent to the inner wall of the middle frame assembly and the inner wall of the middle frame assembly, so that the inner wall of the middle frame assembly and the partition enclose an air guide channel.

[0017] By setting a middle frame assembly and a mounting bracket in the main body, multiple partitions can be fixed by the middle frame assembly and the mounting bracket respectively. By setting multiple partitions on both sides of the mounting bracket, a gap can be made between two adjacent partitions so that the two adjacent partitions can form an air guide channel.

[0018] In the above technical solution, the multiple partitions further include: a first partition located between the mounting bracket and the middle frame assembly, the first partition being connected to the middle frame assembly, and the first partition and the middle frame assembly defining a first air guide channel among the multiple air guide channels; and a second partition located on the side of the mounting bracket away from the middle frame assembly, the second partition being connected to the mounting bracket, and the second partition and the first partition defining a second air guide channel among the multiple air guide channels.

[0019] In this technical solution, multiple partitions and multiple air guide channels are defined. The multiple partitions include a first partition and a second partition, wherein the first partition is located between the mounting bracket and the middle frame assembly and is connected to the middle frame assembly. Specifically, the first partition can be connected to the middle frame assembly by screws or other connection methods. A gap exists between the first partition and the inner wall of the middle frame assembly, defining a first air guide channel among the multiple air guide channels. One end of the first air guide channel communicates with the heat dissipation cavity, and the other end communicates with the outside. Airflow within the heat dissipation cavity can be discharged to the outside through the first air guide channel to achieve cooling of the first partition and the middle frame assembly.

[0020] Furthermore, the multiple partitions also include a second partition, which is located on the side of the mounting bracket opposite to the middle frame assembly and connected to the mounting bracket. Specifically, the side of the mounting bracket opposite to the middle frame assembly has a mounting groove for mounting and fixing the second partition. The second partition can be inserted into the mounting groove. Alternatively, the second partition can be connected to the mounting bracket in other ways, so that the second partition can be fixed relative to the mounting bracket and a gap exists between the second partition and the first partition. The gap between the first partition and the second partition defines a second air guide channel among multiple air guide channels. One end of the second air guide channel communicates with the heat dissipation cavity, and the other end communicates with the outside. The airflow in the heat dissipation cavity can be discharged to the outside through the second air guide channel to achieve cooling of the first partition, the second partition, and the mounting bracket.

[0021] By setting a first partition and a second partition in the door assembly, and making the first partition and the inner wall of the middle frame assembly form a first air guide channel, and the second partition and the first partition form a second air guide channel, the middle frame assembly and the first partition can be cooled through the first air guide channel, and the first partition and the second partition can be cooled through the second air guide channel, so as to achieve cooling of the door assembly.

[0022] In the above technical solution, the door assembly further includes: a baffle connected to the side of the mounting bracket facing the middle frame assembly, the baffle being used to support the first partition; the baffle is provided with multiple exhaust vents, the exhaust vents being located between the first partition and the second partition, and the second air guide channel being connected to the outside through the exhaust vents.

[0023] In this technical solution, the structure of the door assembly is further defined. To further secure the first partition, this application also provides a baffle for supporting the first partition in the door assembly. Specifically, the baffle is connected to the side of the mounting bracket facing the middle frame assembly and extends in the direction toward the middle frame assembly. The bottom wall of the first partition abuts against the baffle, and the baffle can support the first partition, thus further securing the first partition and improving its stability.

[0024] Furthermore, the baffle is equipped with multiple exhaust vents located between the first and second partitions, specifically on the side of the first partition facing away from the mid-frame assembly. These vents are situated within the exhaust path of the second air guide channel, which connects to the outside environment via these vents. When the second air guide channel is venting, the airflow within the heat dissipation cavity flows along it and exits to the outside environment through the multiple exhaust vents on the baffle, thus fulfilling the exhaust function of the second air guide channel.

[0025] Furthermore, the baffle is provided with multiple protrusions, which are located between the first partition and the exhaust port. In this way, the protrusions can limit the first partition to avoid the exhaust port, thus preventing the first partition from blocking the exhaust port and affecting the exhaust of the second air guide channel.

[0026] By installing a baffle on the mounting bracket, the first partition can be supported, further improving its stability. Furthermore, by installing an exhaust vent on the baffle and placing it between the first and second partitions, airflow within the second air guide channel can be discharged through the vent, connecting the second air guide channel to the outside environment. This allows the second air guide channel to smoothly discharge airflow, achieving a cooling effect on the door components.

[0027] In the above technical solution, the baffle and the middle frame assembly further enclose a plurality of exhaust ducts, the exhaust ducts are located between the first partition and the middle frame assembly, and the first air guide channel is connected to the outside through the exhaust ducts.

[0028] In this technical solution, the structure of the baffle is further defined. Multiple grooves are provided on the side of the baffle facing the middle frame assembly. These grooves are located at both ends of the baffle. The middle frame assembly and the groove walls on the baffle together form multiple exhaust ducts. These exhaust ducts are located between the first partition and the middle frame assembly, and within the exhaust path of the first air guide channel. This allows the first air guide channel to connect with the outside through the exhaust ducts, and the airflow within the first air guide channel can be discharged to the outside through the exhaust ducts, thus realizing the normal exhaust function of the first air guide channel.

[0029] By enclosing multiple exhaust ducts with the baffle and the middle frame assembly, and placing the exhaust ducts between the first partition and the middle frame assembly, the first air guide channel can be connected to the outside through the exhaust ducts, thus achieving normal exhaust of the first air guide channel and enabling the first air guide channel to cool the door assembly.

[0030] In the above technical solution, the mounting bracket further includes a mounting groove, and a second partition is inserted into the mounting groove.

[0031] In this technical solution, the structure of the mounting bracket is defined. In order to enable the second partition to be installed on the mounting bracket, this application provides a mounting groove for installing the second partition in the mounting bracket. The mounting groove is located on the side of the mounting bracket away from the middle frame assembly, and the opening of the mounting groove faces the top of the mounting bracket. The second partition is inserted into the mounting groove to achieve the installation and fixation of the second partition.

[0032] Specifically, the mounting slot is located in the area near the bottom of the mounting bracket. In one possible technical solution, the mounting bracket has multiple hooks on the side facing away from the middle frame assembly. Each hook extends in the direction away from the middle frame assembly and bends in the direction towards the top of the mounting bracket. The bent portion of each hook has a certain gap with the mounting bracket. The bent portions of the multiple hooks and the mounting bracket together form the mounting slot. The second partition can be inserted into the mounting slot formed by the multiple hooks to install and fix the second partition.

[0033] By providing a mounting slot in the mounting bracket, the second partition can be installed and fixed by inserting it into the mounting slot.

[0034] In the above technical solution, the door assembly further includes: at least one limiting member connected to the mounting bracket, the limiting member being located on the side of the mounting bracket away from the middle frame assembly, and at least a portion of the second partition being located between the limiting member and the mounting bracket, the limiting member being used to limit the second partition.

[0035] In this technical solution, the structure of the door assembly is further defined. To further limit the positioning of the second partition, this application also provides a limiting member on the mounting frame for limiting the positioning of the second partition. The number of limiting members can be one or more, and the limiting members are connected to the side of the mounting frame away from the middle frame assembly. Specifically, the limiting member is located in the upper area of ​​the mounting frame, and the limiting member can limit the end of the second partition away from the mounting groove. Thus, the upper and lower ends of the second partition can be limited by the limiting member and the mounting groove respectively, so that the second partition can be stably installed on the mounting frame.

[0036] Furthermore, the structure of the limiting member is defined. The limiting member is connected to the side of the mounting bracket away from the middle frame assembly. The limiting member extends in the direction away from the middle frame assembly and bends along the side facing the mounting groove. There is a gap between the bend of the limiting member and the mounting bracket. At least part of the second partition is located between the bend of the limiting member and the mounting bracket. In this way, the second partition can be limited by the bend of the limiting member.

[0037] In one possible technical solution, there are two limiting members, which are located close to both sides of the second partition.

[0038] By setting at least one limiting element on the mounting frame, the second partition can be further limited by the limiting element, so that the second partition can be stably installed on the mounting frame, thereby improving the stability and reliability of the product.

[0039] In the above technical solution, the main body further includes: an outer door panel connected to the mounting frame, the outer door panel being located on the side of the second partition away from the first partition, and a decorative panel being provided on the side of the outer door panel facing the outside.

[0040] In this technical solution, the structure of the main body is further defined. The main body also includes an outer door panel, which faces outwards, i.e., the outer door panel is located on the side facing the user. The outer door panel is connected to the mounting frame. Specifically, the side of the outer door panel facing the mounting frame has multiple connecting slots, which are located near both sides of the outer door panel. The mounting frame has connecting protrusions that fit into the connecting slots. The connecting protrusions are inserted into the slots of the corresponding connecting slots, so that the outer door panel can be hung on the mounting frame, realizing the connection between the mounting frame and the outer door panel.

[0041] Furthermore, to further secure the outer door panel, it can be connected to the mid-frame assembly. Specifically, the outer door panel can be connected to the mid-frame assembly using screws. In this way, the outer door panel can be installed and secured separately through the engagement of the connecting groove and the connecting protrusion, as well as the screws, ensuring the stability of the outer door panel relative to the mounting bracket and the mid-frame assembly.

[0042] Furthermore, to maintain the aesthetic appeal of the door assembly, this application also includes a decorative panel on the outer door panel facing outwards, enhancing the overall appearance of the door assembly. Additionally, the decorative panel also provides heat insulation, further preventing heat dissipation from the door assembly to the outside. In one possible solution, the decorative panel is made of high-temperature resistant glass.

[0043] In the above technical solution, the middle frame assembly further includes: a middle frame; a heat insulation board installed on the middle frame; and a first partition, a second partition, the heat insulation board, and a decorative panel made of high-temperature glass.

[0044] In this technical solution, the structure of the middle frame assembly is further defined. The middle frame assembly includes a middle frame and a heat insulation plate. The heat insulation plate is installed on the middle frame and forms the inner wall of the middle frame assembly, that is, the heat insulation plate forms the inner wall of at least part of the main body. The first partition and the heat insulation plate define a first air guiding channel.

[0045] Furthermore, the first partition, the second partition, the heat insulation board, and the decorative panel are all made of high-temperature glass, which can withstand temperatures up to 450°C. In one possible technical solution, the first partition, the second partition, the heat insulation board, and the decorative panel are made of borosilicate glass. That is, the door assembly proposed in this application includes four layers of heat insulation components made of high-temperature glass, namely the heat insulation board, the first partition, the second partition, and the decorative panel. Compared with traditional door assemblies, the door assembly proposed in this application has better heat insulation performance.

[0046] In the above technical solution, the door assembly further includes: an upper cover connected to the main body, the upper cover having multiple air inlets connected to multiple air guide channels.

[0047] In this technical solution, the structure of the door assembly is further defined. The door assembly also includes a top cover, which is connected to the main body. Specifically, the top cover is connected to the middle frame assembly. The top cover has multiple air inlets. When the top cover is installed on the main body, the air inlets are connected to multiple air guide channels for air intake. The air inlets are positioned facing the exhaust port of the heat dissipation cavity. The airflow discharged from the heat dissipation cavity flows into the first and second air guide channels through the air inlets, and then is discharged through the first and second air guide channels to achieve a cooling effect on the door assembly.

[0048] In the above technical solution, the main body is further provided with an air inlet cavity, one end of which is connected to multiple air inlets and the other end is connected to multiple air guide channels.

[0049] In this technical solution, the structure of the main body is further defined. The main body also includes an air inlet cavity. Specifically, the air inlet cavity is located between the first air guide channel, the second air guide channel, and the air inlet. One end of the air inlet cavity is connected to multiple air inlets, and the other end is connected to multiple air guide channels. In this way, after the airflow enters the door assembly through the air inlet, it is first buffered in the air inlet cavity, and then diverted to the first air guide channel and the second air guide channel, so that the airflow can flow more smoothly.

[0050] In the above technical solution, the door assembly further includes: a door seal, connected to the middle frame assembly, the door seal being located on the side of the middle frame assembly facing the cooking cavity, the door seal having an avoidance opening; a sealing member, disposed in the avoidance opening and fitting against the inner wall of the avoidance opening, at least a portion of the middle frame assembly extending into the avoidance opening, and at least a portion of the sealing member being disposed between the inner wall of the avoidance opening and the middle frame assembly.

[0051] In this technical solution, the structure of the door assembly is further defined. The door assembly also includes a door seal, which cooperates with the housing of the cooking appliance. When the door assembly closes the cooking cavity, the door seal fits tightly against the housing of the cooking appliance, allowing the door assembly to tightly seal the cooking cavity. The door seal is connected to the middle frame assembly. Specifically, the door seal can be connected to the middle frame assembly via screws or other connection methods. The door seal is located on the side of the middle frame assembly facing the cooking cavity.

[0052] Furthermore, the door assembly is also provided with a clearance opening, and the part of the middle frame assembly in which the heat insulation plate is installed extends into the clearance opening. When the door assembly closes the cooking cavity, the heat insulation plate faces the cooking cavity to block the high temperature inside the cooking cavity.

[0053] Furthermore, the door assembly also includes a seal, which is constructed as a sealing ring structure with the same shape as the clearance opening. The seal is located in the clearance opening and fits against the inner wall of the clearance opening. At least part of the seal is located between the inner wall of the clearance opening and the middle frame assembly extending into the clearance opening. The seal is squeezed by the middle frame assembly and the inner wall of the clearance opening to achieve a sealing effect, preventing moisture in the cooking cavity from seeping into the door assembly through the gap between the middle frame assembly and the inner wall of the clearance opening, thus providing a certain degree of protection for the door assembly.

[0054] In the above technical solution, the door assembly further includes: multiple connectors, which are respectively connected to both sides of the mounting bracket. The connectors are used to connect the door assembly to the housing of the cooking appliance.

[0055] In this technical solution, the structure of the door assembly is further defined. To enable the door assembly to be installed on the cooking appliance's housing, this application also includes multiple connectors in the door assembly for connecting the door assembly to the cooking appliance's housing. Specifically, the multiple connectors are respectively connected to both sides of the mounting bracket, and the connectors are connected to the mounting bracket by screws. At least a portion of the connectors protrudes from the door assembly and inserts into the connection holes of the cooking appliance that mate with the connectors, so that the door assembly can be connected to the cooking appliance's housing.

[0056] In the above technical solution, any connecting member further includes: a first connecting rod connected to the mounting bracket; and a second connecting rod connected to the housing. The first connecting rod is rotatable relative to the second connecting rod, so that the door assembly can rotate relative to the housing.

[0057] In this technical solution, the structure of the connector is defined. Each connector includes a first link and a second link, wherein the first link is connected to the mounting bracket, and the second link is connected to the housing of the cooking appliance. The first link is rotatable relative to the second link, i.e., the first link is hinged to the second link. When the user needs to open the door assembly, the user can pull the door assembly to rotate it away from the housing of the cooking appliance. At this time, the first link rotates relative to the second link, allowing the door assembly to open the cooking cavity. When the user needs to close the cooking cavity, the user pushes the door assembly to rotate it towards the housing of the cooking appliance. At this time, the first link rotates relative to the second link, allowing the door assembly to close the cooking cavity.

[0058] A second aspect of the present invention also provides a cooking appliance, comprising a door assembly as described in the first aspect of the present invention; a housing including a cooking cavity, the door assembly being used to open or close the cooking cavity; a heat dissipation cavity communicating with an air inlet of the door assembly; and a heat dissipation device disposed within the heat dissipation cavity, the heat dissipation device being capable of generating an airflow for heat dissipation and discharging the airflow through the air inlet into the air guide channel of the door assembly.

[0059] The cooking appliance proposed in this application includes a housing and a door assembly. The housing includes a cooking cavity, and the door assembly is connected to the housing and is capable of moving between different positions relative to the housing so that the door assembly can open or close the cooking cavity.

[0060] Furthermore, the cooking appliance also includes a heat dissipation cavity, within which a heat dissipation device is installed, including a fan. When in operation, the heat dissipation device generates an airflow for heat dissipation. The heat dissipation cavity is connected to the air inlet of the door assembly, and the airflow flows into the door assembly through the air inlet. The door assembly includes multiple air guide channels communicating with the outside, and the airflow flows along these channels and is discharged to the outside, thereby achieving a cooling effect on the door assembly.

[0061] The cooking appliance provided in the second aspect of the present invention, having the door assembly proposed in the first aspect of the present invention, has all the beneficial effects of the door assembly.

[0062] The cooking appliance can be an oven or a microwave-steam-grill combination appliance.

[0063] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0064] 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, in which:

[0065] Figure 1 One of the structural schematic diagrams of a door assembly according to an embodiment of the present invention is shown;

[0066] Figure 2 A second schematic diagram of the structure of a door assembly according to an embodiment of the present invention is shown;

[0067] Figure 3 An exploded view of a door assembly according to an embodiment of the present invention is shown.

[0068] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0069] 100 Door assembly, 110 Main body, 120 Middle frame assembly, 121 Middle frame, 122 Heat insulation board, 123 Air inlet cavity, 130 Mounting bracket, 131 Baffle, 132 Exhaust vent, 133 Exhaust duct, 134 Limiting component, 140 Outer door panel, 141 Decorative panel, 150 Partition, 151 First partition, 152 Second partition, 160 Air guide channel, 161 First air guide channel, 162 Second air guide channel, 170 Top cover, 171 Air inlet, 180 Door seal, 181 Circumvention opening, 182 Sealing component, 190 Connecting component, 191 First connecting rod, 192 Second connecting rod. Detailed Implementation

[0070] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0071] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0072] The following reference Figures 1 to 3 A door assembly 100 and a cooking appliance are described according to some embodiments of the present invention.

[0073] In one embodiment according to this application, such as Figure 1 and Figure 2 As shown, the first aspect of the present invention provides a door assembly 100 for use in a cooking appliance. The door assembly 100 includes: a main body 110; a plurality of partitions 150 located within the main body 110, wherein the plurality of partitions 150 are sequentially connected to the main body 110 in a direction away from the cooking cavity of the cooking appliance; and a plurality of air guide channels 160 are formed between any two adjacent partitions 150 and between the inner wall of the main body 110 near the cooking cavity and the adjacent partitions 150. One end of any air guide channel 160 is connected to the outside, and the other end is connected to the heat dissipation cavity of the cooking appliance. The air guide channel 160 is used to discharge the airflow in the heat dissipation cavity to cool the door assembly 100.

[0074] The door assembly 100 proposed in this application can be used in a cooking appliance, which includes a housing. The door assembly 100 is movably connected to the housing and can move relative to the housing between different positions. The housing includes a cooking cavity for containing food ingredients, and the cooking appliance can cook the food ingredients in the cooking cavity. When the door assembly 100 moves between different positions, it can open or close the cooking cavity.

[0075] In one possible embodiment, the cooking appliance is a microwave-steam-grill combo with a high-temperature self-cleaning function. When the appliance performs high-temperature self-cleaning inside the cooking cavity, the temperature can reach up to 450°C, causing the grease inside to carbonize and thus achieving the self-cleaning function. Conventional doors cannot withstand temperatures of 450°C. On the one hand, this can easily damage the door due to the high temperature, causing some parts inside to fail. On the other hand, because the door cannot effectively insulate against the high temperature inside the cooking cavity, the outer wall of the door becomes too hot, posing a risk of burns to the user.

[0076] To avoid the above problems, this application proposes a door assembly 100 suitable for high-temperature environments. The door assembly 100 includes multiple air guide channels 160, which can dissipate heat from the door assembly 100 to reduce its temperature. The door assembly 100 includes a main body 110 and multiple partitions 150. The main body 110 has a cavity structure, and the multiple partitions 150 are located inside the main body 110. The partitions 150 are used to form air guide channels 160 for ventilation. The multiple partitions 150 are all connected to the main body 110 so that the partitions 150 can be fixed relative to the main body 110. The multiple partitions 150 are arranged sequentially in a direction away from the cooking cavity. In this way, the partitions 150 and the wall of the main body 110 can enclose multiple air guide channels 160.

[0077] Specifically, any two adjacent partitions 150 and the inner wall of the main body 110 near the cooking cavity and its adjacent partitions 150 each form an air guide channel 160, so that the main body 110 has multiple air guide channels 160. The cooking appliance used in the door assembly 100 also includes a heat dissipation cavity, which is equipped with a heat dissipation device for dissipating heat from the cooking appliance. The heat dissipation device can generate airflow, and by discharging the airflow to the outside of the cooking appliance, the heat dissipation effect of the cooking appliance can be achieved. One end of any air guide channel 160 is connected to the outside, and the other end is connected to the heat dissipation cavity. The airflow in the heat dissipation cavity can be discharged to the outside through the air guide channel 160 in the door assembly 100. In this way, the door assembly 100 can be dissipated through the air guide channel 160 to avoid the door assembly 100 from overheating and being damaged. On the other hand, by setting multiple partitions 150, the temperature of the wall surface of the door assembly 100 facing the outside can be effectively reduced to prevent the door assembly 100 from burning the user. Furthermore, by expelling the airflow from the heat dissipation cavity through the air guide channel 160 in the door assembly 100, heat can be dissipated from the heat dissipation cavity, thereby cooling the cooking appliance.

[0078] In one possible embodiment, there are two partitions 150. The two partitions 150 and the partition 150 near the inner wall of the main body 110 each form an air guide channel 160. Thus, the door assembly 100 has two air guide channels 160. Compared with a door with a single air guide channel 160, this application can improve the heat dissipation effect of the door assembly 100 by providing at least two air guide channels 160 in the door assembly 100, and can also provide heat insulation through multiple partitions 150 to prevent the outer wall temperature of the door assembly 100 from being too high.

[0079] By setting multiple partitions 150 in the main body 110, multiple air guide channels 160 can be formed through the partitions 150. The airflow in the heat dissipation cavity of the cooking appliance can be discharged to the outside through the air guide channels 160. On the one hand, the door assembly 100 can be cooled by the multiple air guide channels 160, avoiding damage to the door assembly 100 caused by the high temperature in the cooking cavity, thus extending the service life and reliability of the door assembly 100. On the other hand, it can effectively reduce the temperature of the wall surface of the door assembly 100 facing the outside, preventing users from being burned due to the excessive temperature of the outer wall of the door assembly 100, thus improving the safety of the product.

[0080] In one embodiment according to this application, such as Figure 2 and Figure 3 As shown, the main body 110 includes: a middle frame assembly 120; a mounting bracket 130 connected to the middle frame assembly 120, the mounting bracket 130 being located on the side of the middle frame assembly 120 away from the cooking cavity, and multiple partitions 150 being located on both sides of the mounting bracket 130.

[0081] In this embodiment, the structure of the main body 110 is defined. The main body 110 includes a middle frame assembly 120 and a mounting bracket 130, which are used to fix a plurality of partitions 150. The mounting bracket 130 is located on the side of the middle frame assembly 120 opposite to the cooking cavity and is connected to the middle frame assembly 120, with a gap between the mounting bracket 130 and the middle frame assembly 120. Specifically, the mounting bracket 130 can be connected to the middle frame assembly 120 by screws or other connection methods. Further, at least a portion of the partitions 150 are connected to the mounting bracket 130, and at least a portion of the partitions 150 are connected to the middle frame assembly 120, thereby achieving the installation and fixation of the plurality of partitions 150.

[0082] Furthermore, multiple partitions 150 are located on both sides of the mounting bracket 130, such that there is a gap between adjacent partitions 150, and the adjacent partitions 150 together form an air guide channel 160. The inner wall of the middle frame assembly 120 constitutes the inner wall of the main body 110, and the partitions 150 adjacent to the inner wall of the middle frame assembly 120 are spaced apart from the inner wall of the middle frame assembly 120, so that the inner wall of the middle frame assembly 120 and the partitions 150 together form an air guide channel 160.

[0083] By providing a middle frame assembly 120 and a mounting bracket 130 in the main body 110, multiple partitions 150 can be fixed by the middle frame assembly 120 and the mounting bracket 130 respectively. By placing multiple partitions 150 on both sides of the mounting bracket 130, a gap can be formed between two adjacent partitions 150 so that two adjacent partitions 150 can enclose an air guide channel 160.

[0084] In one embodiment according to this application, such as Figure 2 and Figure 3 As shown, the plurality of partitions 150 include: a first partition 151, located between the mounting bracket 130 and the middle frame assembly 120, the first partition 151 being connected to the middle frame assembly 120, the first partition 151 and the middle frame assembly 120 defining a first air guide channel 161 among the plurality of air guide channels 160; and a second partition 152, located on the side of the mounting bracket 130 opposite to the middle frame assembly 120, the second partition 152 being connected to the mounting bracket 130, the second partition 152 and the first partition 151 defining a second air guide channel 162 among the plurality of air guide channels 160.

[0085] In this embodiment, multiple partitions 150 and multiple air guide channels 160 are defined. The multiple partitions 150 include a first partition 150 and a second partition 152, wherein the first partition 151 is located between the mounting bracket 130 and the middle frame assembly 120, and is connected to the middle frame assembly 120. Specifically, the first partition 151 can be connected to the middle frame assembly 120 by screws or other connection methods. A gap exists between the first partition 151 and the inner wall of the middle frame assembly 120, and the first partition 151 and the inner wall of the middle frame assembly 120 define a first air guide channel 161 among the multiple air guide channels 160. One end of the first air guide channel 161 communicates with the heat dissipation cavity, and the other end communicates with the outside, such as... Figure 2 As shown, the direction of the arrow indicates the direction of airflow. The airflow in the heat dissipation cavity can be discharged to the outside through the first air guide channel 161 to achieve cooling of the first partition 151 and the middle frame assembly 120.

[0086] Furthermore, the plurality of partitions 150 also include a second partition 152, which is located on the side of the mounting bracket 130 opposite to the middle frame assembly 120 and is connected to the mounting bracket 130. Specifically, the side of the mounting bracket 130 opposite to the middle frame assembly 120 is provided with a mounting groove for mounting and fixing the second partition 152. The second partition 152 can be inserted into the mounting groove. Alternatively, the second partition 152 can also be connected to the mounting bracket 130 in other ways, so that the second partition 152 can be fixed relative to the mounting bracket 130 and a gap exists between the second partition 152 and the first partition 151. The gap between the first partition 151 and the second partition 152 defines a second air guide channel 162 among a plurality of air guide channels 160. One end of the second air guide channel 162 communicates with the heat dissipation cavity, and the other end communicates with the outside, such as... Figure 2 As shown, the direction of the arrow indicates the direction of airflow. The airflow in the heat dissipation cavity can be discharged to the outside through the second air guide channel 162 to achieve cooling of the first partition 151, the second partition 152 and the mounting bracket 130.

[0087] By setting a first partition 151 and a second partition 152 in the door assembly 100, and making the first partition 151 and the inner wall of the middle frame assembly 120 enclose a first air guide channel 161, and the second partition 152 and the first partition 151 enclose a second air guide channel 162, the middle frame assembly 120 and the first partition 151 can be cooled through the first air guide channel 161, and the first partition 151 and the second partition 152 can be cooled through the second air guide channel 162, so as to achieve cooling of the door assembly 100.

[0088] In one embodiment according to this application, such as Figure 2 and Figure 3 As shown, the door assembly 100 also includes a baffle 131, which is connected to the side of the mounting bracket 130 facing the middle frame assembly 120. The baffle 131 is used to support the first partition 151. The baffle 131 is provided with a plurality of exhaust vents 132, which are located between the first partition 151 and the second partition 152. The second air guide channel 162 is connected to the outside through the exhaust vents 132.

[0089] In this embodiment, the structure of the door assembly 100 is further defined. To further secure the first partition 151, this application also provides a baffle 131 in the door assembly 100 for supporting the first partition 151. Specifically, the baffle 131 is connected to the side of the mounting bracket 130 facing the middle frame assembly 120 and extends in the direction toward the middle frame assembly 120. The bottom wall of the first partition 151 abuts against the baffle 131, and the baffle 131 can support the first partition 151. In this way, the first partition 151 can be further secured, and the stability of the first partition 151 is further improved.

[0090] Furthermore, the baffle 131 is provided with multiple exhaust vents 132, which are located between the first partition 151 and the second partition 152. That is, the multiple exhaust vents 132 are located on the side of the first partition 151 away from the middle frame assembly 120. The exhaust vents 132 are located within the exhaust path of the second air guide channel 162, which can communicate with the outside through the exhaust vents 132. When the second air guide channel 162 is ventilating, the airflow in the heat dissipation cavity flows along the second air guide channel 162 and can flow out to the outside through the multiple exhaust vents 132 on the baffle 131, thereby realizing the exhaust function of the second air guide channel 162.

[0091] Furthermore, the baffle 131 is also provided with multiple protrusions, which are located between the first partition 151 and the exhaust port 132. In this way, the protrusions can limit the first partition 151 so that the first partition 151 avoids the exhaust port 132, thereby preventing the first partition 151 from blocking the exhaust port 132 and affecting the exhaust of the second air guide channel 162.

[0092] By providing a baffle 131 on the mounting bracket 130, the first partition 151 can be supported, further improving its stability. Furthermore, by providing an exhaust vent 132 on the baffle 131 and positioning it between the first and second partitions 151, airflow within the second air guide channel 162 can be discharged through the exhaust vent 132, connecting the second air guide channel 162 to the outside environment. This allows the second air guide channel 162 to smoothly discharge airflow, achieving a cooling effect on the door assembly 100.

[0093] In one embodiment according to this application, such as Figure 3 As shown, the baffle 131 and the middle frame assembly 120 together form a plurality of exhaust ducts 133. The exhaust ducts 133 are located between the first partition 151 and the middle frame assembly 120. The first air guide channel 161 is connected to the outside through the exhaust ducts 133.

[0094] In this embodiment, the structure of the baffle 131 is further defined. The baffle 131 has multiple grooves on the side facing the middle frame assembly 120. These grooves are located at both ends of the baffle 131. The middle frame assembly 120 and the groove walls of the baffle 131 together form multiple exhaust ducts 133. The exhaust ducts 133 are located between the first partition 151 and the middle frame assembly 120, and within the exhaust path of the first air guide channel 161. This allows the first air guide channel 161 to communicate with the outside through the exhaust ducts 133, and the airflow within the first air guide channel 161 can be discharged to the outside through the exhaust ducts 133, thus realizing the normal exhaust function of the first air guide channel 161.

[0095] By enclosing the baffle 131 and the middle frame assembly 120 to form multiple exhaust ducts 133, and placing the exhaust ducts 133 between the first partition 151 and the middle frame assembly 120, the first air guide channel 161 can be connected to the outside through the exhaust ducts 133, thereby achieving normal exhaust of the first air guide channel 160 and enabling the first air guide channel 161 to play a role in cooling the door assembly 100.

[0096] In one embodiment of this application, the mounting bracket 130 includes a mounting groove, and a second partition 152 is inserted into the mounting groove.

[0097] In this embodiment, the structure of the mounting bracket 130 is defined. In order to enable the second partition 152 to be installed in the mounting bracket 130, the present application provides a mounting groove for installing the second partition 152 in the mounting bracket 130. The mounting groove is located on the side of the mounting bracket 130 away from the middle frame assembly 120, and the opening of the mounting groove faces the top of the mounting bracket 130. The second partition 152 is inserted into the mounting groove to achieve the installation and fixation of the second partition 152.

[0098] Specifically, the mounting slot is located in the area near the bottom of the mounting bracket 130. In one possible embodiment, the mounting bracket 130 has multiple hooks on the side opposite to the middle frame assembly 120. Each hook extends in the direction opposite to the middle frame assembly 120 and bends in the direction upward toward the mounting bracket 130. The bent portion of each hook has a certain gap with the mounting bracket 130. The bent portions of the multiple hooks and the mounting bracket 130 together form the mounting slot. The second partition 152 can be inserted into the mounting slot formed by the multiple hooks to install and fix the second partition 152.

[0099] By providing a mounting slot in the mounting bracket 130, the second partition 152 can be installed and fixed by inserting it into the mounting slot.

[0100] In one embodiment according to this application, such as Figure 3 As shown, the door assembly 100 further includes: at least one limiting member 134 connected to the mounting bracket 130, the limiting member 134 being located on the side of the mounting bracket 130 away from the middle frame assembly 120, and at least a portion of the second partition 152 being located between the limiting member 134 and the mounting bracket 130, the limiting member 134 being used to limit the second partition 152.

[0101] In this embodiment, the structure of the door assembly 100 is further defined. To further limit the second partition 152, this application also provides a limiting member 134 on the mounting bracket 130 for limiting the second partition 152. The number of limiting members 134 can be one or more, and the limiting member 134 is connected to the side of the mounting bracket 130 away from the middle frame assembly 120. Specifically, the limiting member 134 is disposed in the area near the top of the mounting bracket 130. The limiting member 134 can limit the end of the second partition 152 away from the mounting groove. In this way, the upper and lower ends of the second partition 152 can be limited by the limiting member 134 and the mounting groove, respectively, so that the second partition 152 can be stably installed on the mounting bracket 130.

[0102] Furthermore, the structure of the limiting member 134 is defined. The limiting member 134 is connected to the side of the mounting bracket 130 opposite to the middle frame assembly 120. The limiting member 134 extends in the direction opposite to the middle frame assembly 120 and bends along the side facing the mounting groove. There is a gap between the bend of the limiting member 134 and the mounting bracket 130. At least a portion of the second partition 152 is located between the bend of the limiting member 134 and the mounting bracket 130. Thus, the second partition 152 can be limited by the bend of the limiting member 134.

[0103] In one possible embodiment, there are two limiting members 134, which are respectively located near the two sides of the second partition 152.

[0104] By providing at least one limiting member 134 on the mounting frame 130, the second partition 152 can be further limited by the limiting member 134, so that the second partition 152 can be stably installed on the mounting frame 130, thereby improving the stability and reliability of the product.

[0105] In one embodiment according to this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the main body 110 also includes an outer door panel 140, which is connected to the mounting bracket 130. The outer door panel 140 is located on the side of the second partition 152 away from the first partition 151, and a decorative panel 141 is provided on the side of the outer door panel 140 facing the outside.

[0106] In this embodiment, the structure of the main body 110 is further defined. The main body 110 also includes an outer door panel 140, which faces outwards, i.e., the outer door panel 140 is located on the side facing the user. The outer door panel 140 is connected to the mounting frame 130. Specifically, the outer door panel 140 has multiple connecting slots on the side facing the mounting frame 130, and the multiple connecting slots are respectively close to both sides of the outer door panel 140. The mounting frame 130 has connecting protrusions that are adapted to the connecting slots. The connecting protrusions are inserted into the slots of the corresponding connecting slots, so that the outer door panel 140 can be hung on the mounting frame 130, realizing the connection between the mounting frame 130 and the outer door panel 140.

[0107] Furthermore, to further secure the outer door panel 140, it can be connected to the middle frame assembly 120. Specifically, the outer door panel 140 can be connected to the middle frame assembly 120 using screws. Thus, the outer door panel 140 can be secured using the engagement of the connecting groove and the connecting protrusion, as well as the screws, to ensure stability of the outer door panel 140 relative to the mounting bracket 130 and the middle frame assembly 120.

[0108] Furthermore, to maintain the aesthetic appeal of the door assembly 100, this application also provides a decorative panel 141 on the outward-facing side of the outer door panel 140 to enhance the appearance of the door assembly 100. Furthermore, the decorative panel 141 also has a heat insulation function, thereby further preventing the door assembly 100 from dissipating heat to the outside. In one possible embodiment, the decorative panel 141 is made of high-temperature resistant glass.

[0109] In one embodiment according to this application, such as Figure 1 and Figure 3 As shown, the middle frame assembly 120 includes: a middle frame 121; a heat insulation plate 122 installed on the middle frame 121; and a first partition 151, a second partition 152, the heat insulation plate 122, and a decorative plate 141 made of high-temperature glass.

[0110] In this embodiment, the structure of the middle frame assembly 120 is further defined. The middle frame assembly 120 includes a middle frame 121 and a heat insulation plate 122. The heat insulation plate 122 is installed on the middle frame 121 and forms the inner wall of the middle frame assembly 120, that is, the heat insulation plate 122 forms the inner wall of at least part of the main body 110. The first partition 151 and the heat insulation plate 122 define a first air guide channel 161.

[0111] Furthermore, the first partition 151, the second partition 152, the heat insulation plate 122, and the decorative plate 141 are all made of high-temperature glass, which can withstand temperatures up to 450°C. In one possible embodiment, the first partition 151, the second partition 152, the heat insulation plate 122, and the decorative plate 141 are made of borosilicate glass. That is, the door assembly 100 proposed in this application includes four layers of heat insulation components made of high-temperature glass, namely the heat insulation plate 122, the first partition 151, the second partition 152, and the decorative plate 141. Compared with traditional door bodies, the door assembly 100 proposed in this application has better heat insulation properties.

[0112] In one embodiment according to this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the door assembly 100 also includes: an upper cover 170, which is connected to the main body 110. The upper cover 170 is provided with multiple air inlets 171, which are connected to multiple air guide channels 160.

[0113] In this embodiment, the structure of the door assembly 100 is further defined. The door assembly 100 also includes a top cover 170, which is connected to the main body 110. Specifically, the top cover 170 is connected to the middle frame assembly 120. The top cover 170 is provided with multiple air inlets 171. When the top cover 170 is installed on the main body 110, the air inlets 171 communicate with multiple air guide channels 160 and are used for air intake. The air inlets 171 are positioned facing the exhaust port 132 of the heat dissipation cavity. The airflow discharged from the heat dissipation cavity flows into the first air guide channel 161 and the second air guide channel 162 through the air inlets 171, and then is discharged through the first air guide channel 161 and the second air guide channel 162 to achieve a cooling effect on the door assembly 100.

[0114] In one embodiment according to this application, such as Figure 2 As shown, the main body 110 is provided with an air inlet cavity 123. One end of the air inlet cavity 123 is connected to multiple air inlets 171, and the other end is connected to multiple air guide channels 160.

[0115] In this embodiment, the structure of the main body 110 is further defined. The main body 110 also includes an air inlet cavity 123. Specifically, the air inlet cavity 123 is located between the first air guide channel 161, the second air guide channel 162, and the air inlet 171. One end of the air inlet cavity 123 is connected to multiple air inlets 171, and the other end is connected to multiple air guide channels 160. In this way, after the airflow enters the door assembly 100 through the air inlet 171, it is first buffered in the air inlet cavity 123, and then diverted to the first air guide channel 161 and the second air guide channel 162, so that the airflow can flow more smoothly.

[0116] In one embodiment according to this application, such as Figure 2 and Figure 3 As shown, the door assembly 100 further includes: a door seal 180, connected to the middle frame assembly 120, the door seal 180 being located on the side of the middle frame assembly 120 facing the cooking cavity, and the door seal 180 having a clearance opening 181; and a sealing member 182, disposed in the clearance opening 181 and fitting against the inner wall of the clearance opening 181, at least a portion of the middle frame assembly 120 extending into the clearance opening 181, and at least a portion of the sealing member 182 being disposed between the inner wall of the clearance opening 181 and the middle frame assembly 120.

[0117] In this embodiment, the structure of the door assembly 100 is further defined. The door assembly 100 also includes a door seal 180, which cooperates with the housing of the cooking appliance. When the door assembly 100 closes the cooking cavity, the door seal 180 fits tightly against the housing of the cooking appliance, so that the door assembly 100 can tightly seal the cooking cavity. The door seal 180 is connected to the middle frame assembly 120. Specifically, the door seal 180 can be connected to the middle frame assembly 120 by screws or other connection methods. The door seal 180 is located on the side of the middle frame assembly 120 facing the cooking cavity.

[0118] Furthermore, the door assembly 100 is also provided with a clearance opening 181, and the portion of the middle frame assembly 120 in which the heat insulation plate 122 is installed extends into the clearance opening 181. When the door assembly 100 closes the cooking cavity, the heat insulation plate 122 faces the cooking cavity to block the high temperature inside the cooking cavity.

[0119] Furthermore, the door assembly 100 also includes a seal 182, which is constructed as a sealing ring structure with the same shape as the relief opening 181. The seal 182 is disposed in the relief opening 181 and fits against the inner wall of the relief opening 181. At least part of the seal 182 is located between the inner wall of the relief opening 181 and the middle frame assembly 120 extending into the relief opening 181. The seal 182 is squeezed by the middle frame assembly 120 and the inner wall of the relief opening 181 to achieve a sealing effect, preventing moisture in the cooking cavity from seeping into the door assembly 100 through the gap between the middle frame assembly 120 and the inner wall of the relief opening 181, thus providing a certain degree of protection for the door assembly 100.

[0120] In one embodiment according to this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the door assembly 100 also includes a plurality of connectors 190, which are respectively connected to both sides of the mounting bracket 130. The connectors 190 are used to connect the door assembly 100 to the housing of the cooking appliance.

[0121] In this embodiment, the structure of the door assembly 100 is further defined. To enable the door assembly 100 to be installed on the housing of the cooking appliance, this application also provides a plurality of connectors 190 in the door assembly 100. The connectors 190 are used to connect the door assembly 100 to the housing of the cooking appliance. Specifically, the plurality of connectors 190 are respectively connected to both sides of the mounting bracket 130. The connectors 190 are connected to the mounting bracket 130 by screws. At least a portion of the connectors 190 protrudes from the door assembly 100 and is inserted into the connection hole of the cooking appliance that matches the connector 190, so that the door assembly 100 can be connected to the housing of the cooking appliance.

[0122] In one embodiment according to this application, such as Figure 3 As shown, any connector 190 includes: a first link 191 connected to the mounting bracket 130; and a second link 192 connected to the housing. The first link 191 is rotatable relative to the second link 192, so that the door assembly 100 can rotate relative to the housing.

[0123] In this embodiment, the structure of the connector 190 is defined. Each connector 190 includes a first link 191 and a second link 192. The first link 191 is connected to the mounting bracket 130, and the second link 192 is connected to the housing of the cooking appliance. The first link 191 is rotatable relative to the second link 192, i.e., the first link 191 is hinged to the second link 192. When the user needs to open the door assembly 100, the user can pull the door assembly 100 to rotate it away from the housing of the cooking appliance. At this time, the first link 191 rotates relative to the second link 192, allowing the door assembly 100 to open the cooking cavity. When the user needs to close the cooking cavity, the user pushes the door assembly 100 to rotate it towards the housing of the cooking appliance. At this time, the first link 191 rotates relative to the second link 192, allowing the door assembly 100 to close the cooking cavity.

[0124] In one possible embodiment, this application provides a door assembly 100 with an air guide channel 160. The door assembly 100 proposed in this application can be used in cooking appliances with microwave, steam, and grill functions as well as self-cleaning functions. The door assembly 100 has multiple layers of glass and an inner air duct, and also has a horizontal air duct.

[0125] like Figure 2 and Figure 3 As shown, air blows from the air duct of the front panel of the cavity (i.e., the heat dissipation cavity of the cooking appliance), enters through the upper cover 170 of the door assembly 100, passes through the ventilation grille (i.e., the air inlet 171), flows into the second air guide channel 162 formed by the second layer of heat-insulating glass (i.e., the second partition 152) (from left to right) and the third layer of heat-insulating glass (i.e., the first partition 151), and simultaneously flows into the first air guide channel 161 formed by the third layer of heat-insulating glass and the inner wall of the middle frame assembly 120, and finally exits from the lower end of the door assembly 100.

[0126] The overall assembly method of the door assembly 100 is as follows: the furnace door sealing ring (i.e., sealing element 182) is circumferentially fixed on the door seal 180, the door seal 180 is fixed on the middle frame assembly 120 by screws, the third layer of heat insulation glass is fixed on the middle frame assembly 120, the main frame (i.e., mounting bracket 130) is fixed to the middle frame assembly 120 and presses the third layer of heat insulation glass, the main frame is fixed to the middle frame assembly 120 by screws, the bottom of the third layer of heat insulation glass is inserted into the main frame, and the upper end is fixed in the main frame by left and right symmetrical pressure plates (i.e. limiting elements 134), the left and right hinges (i.e. connecting elements 190) are fixed to the lower end of the main frame, and the glass assembly (i.e., outer door panel 140) is hung on the main frame by hooks.

[0127] A second aspect of the present invention also provides a cooking appliance, comprising a door assembly 100 as described in the first aspect of the present invention; a housing including a cooking cavity, the door assembly 100 being used to open or close the cooking cavity; a heat dissipation cavity communicating with an air inlet 171 of the door assembly 100; and a heat dissipation device disposed within the heat dissipation cavity, the heat dissipation device being capable of generating an airflow for heat dissipation and discharging the airflow through the air inlet 171 into the air guide channel 160 of the door assembly 100.

[0128] The cooking appliance proposed in this application includes a housing and a door assembly 100. The housing includes a cooking cavity, and the door assembly 100 is connected to the housing and is capable of moving between different positions relative to the housing so that the door assembly 100 can open or close the cooking cavity.

[0129] Furthermore, the cooking appliance also includes a heat dissipation cavity, within which a heat dissipation device is installed, including a fan. When in operation, the heat dissipation device generates an airflow for heat dissipation. The heat dissipation cavity is connected to the air inlet 171 of the door assembly 100, and the airflow flows into the door assembly 100 through the air inlet 171. The door assembly 100 includes multiple air guide channels 160 communicating with the outside. The airflow flows along the air guide channels 160 and is discharged to the outside, thereby achieving a cooling effect on the door assembly 100.

[0130] The cooking appliance provided in the second aspect of the present invention, having the door assembly 100 proposed in the first aspect of the present invention, has all the beneficial effects of the door assembly 100.

[0131] The cooking appliance can be an oven or a microwave-steam-grill combination appliance.

[0132] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0133] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which 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.

[0134] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door assembly, characterized in that, For use in cooking appliances, the door assembly includes: main body; Multiple partitions are located inside the main body, and the multiple partitions are sequentially connected to the main body along the direction away from the cooking cavity of the cooking appliance; Multiple air guide channels are formed between any two adjacent partitions and between the inner wall of the main body near the cooking cavity and the adjacent partitions. One end of any air guide channel is connected to the outside, and the other end is connected to the heat dissipation cavity of the cooking appliance. The air guide channel is used to exhaust the airflow in the heat dissipation cavity to cool the door assembly. The subject includes: Mid-frame component; The mounting bracket is connected to the middle frame assembly and is located on the side of the middle frame assembly opposite to the cooking cavity. The plurality of partitions are located on both sides of the mounting bracket. The door assembly also includes: The upper cover is connected to the main body. The upper cover is provided with multiple air inlets, which are connected to the multiple air guide channels. The air inlets are arranged facing the exhaust port of the heat dissipation cavity. The main body is provided with an air inlet cavity, one end of which is connected to a plurality of air inlets and the other end of which is connected to a plurality of air guide channels.

2. The door assembly according to claim 1, characterized in that, The plurality of partitions includes: A first partition is located between the mounting bracket and the middle frame assembly. The first partition is connected to the middle frame assembly, and the first partition and the middle frame assembly define a first air guide channel among the plurality of air guide channels. The second partition is located on the side of the mounting bracket away from the middle frame assembly. The second partition is connected to the mounting bracket, and the second partition and the first partition define the second air guide channel among the plurality of air guide channels.

3. The door assembly according to claim 2, characterized in that, Also includes: A baffle is connected to the side of the mounting bracket facing the middle frame assembly, and the baffle is used to support the first partition. The baffle is provided with multiple exhaust vents, which are located between the first partition and the second partition. The second air guide channel is connected to the outside through the exhaust vents.

4. The door assembly according to claim 3, characterized in that, The baffle and the middle frame assembly together form a plurality of exhaust troughs, which are located between the first partition and the middle frame assembly. The first air guide channel is connected to the outside through the exhaust troughs.

5. The door assembly according to claim 2, characterized in that, The mounting bracket includes: The second partition is inserted into the mounting slot.

6. The door assembly according to claim 2, characterized in that, Also includes: At least one limiting member is connected to the mounting bracket, the limiting member being located on the side of the mounting bracket away from the middle frame assembly, and at least a portion of the second partition is located between the limiting member and the mounting bracket, the limiting member being used to limit the second partition.

7. The door assembly according to claim 2, characterized in that, The subject also includes: The outer door panel is connected to the mounting bracket. The outer door panel is located on the side of the second partition away from the first partition. The outer door panel has a decorative panel on the side facing the outside.

8. The door assembly according to claim 7, characterized in that, The mid-frame component includes: Mid-frame; The heat insulation panel is installed on the middle frame; The first partition, the second partition, the heat insulation board, and the decorative board are made of high-temperature glass.

9. The door assembly according to any one of claims 1 to 8, characterized in that, Also includes: A door seal, connected to the middle frame assembly, is located on the side of the middle frame assembly facing the cooking cavity, and the door seal is provided with a clearance opening; A sealing element is disposed in the clearance opening and fits against the inner wall of the clearance opening. At least a portion of the middle frame assembly extends into the clearance opening, and at least a portion of the sealing element is disposed between the inner wall of the clearance opening and the middle frame assembly.

10. The door assembly according to any one of claims 1 to 8, characterized in that, Also includes: Multiple connectors are respectively connected to both sides of the mounting bracket, and the connectors are used to connect the door assembly to the housing of the cooking appliance.

11. The door assembly according to claim 10, characterized in that, Any of the aforementioned connectors includes: The first link is connected to the mounting bracket; The second link is connected to the housing, and the first link is rotatable relative to the second link so that the door assembly can rotate relative to the housing.

12. A cooking utensil, characterized in that, include: The door assembly as described in any one of claims 1 to 11; A housing, including a cooking cavity, wherein the door assembly is used to open or close the cooking cavity; The heat dissipation cavity is connected to the air inlet of the door assembly; A heat dissipation device is disposed inside the heat dissipation cavity. The heat dissipation device is capable of generating an airflow for heat dissipation and discharging the airflow into the air guide channel of the door assembly through the air inlet.

13. The cooking utensil according to claim 12, characterized in that, The cooking appliance is an oven or a microwave-steam-grill combination appliance.

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