Door assembly and steam-baking micro-integrated machine

Abstract

The application relates to a door assembly and a steam-baking microwave all-in-one machine, which comprises a door body and a mesh curtain assembly, wherein the door body is provided with a window; the mesh curtain assembly comprises a rotating shaft rotatably arranged above the window and on the door body and a metal mesh curtain arranged on the rotating shaft; the metal mesh curtain has an unfolded state and a wound state which are switched with each other; when the metal mesh curtain is switched to the unfolded state, the metal mesh curtain covers the window, at this moment, the door assembly corresponds to a microwave heating mode, and microwave leakage can be avoided under the shielding effect of the metal mesh curtain; when the metal mesh curtain is switched to the wound state, the metal mesh curtain is wound on the rotating shaft, at this moment, the door assembly corresponds to a steam and baking mode, and the cooking state of food materials in an inner container can be observed by a user.

Description

Technical Field

[0001] This utility model relates to the field of steam oven and microwave integrated appliance technology, and in particular to a door assembly and a steam oven and microwave integrated appliance. Background Technology

[0002] In steam ovens with microwave function, to achieve microwave shielding by the door, tiny mesh holes are usually machined directly into the door to form a perforated plate to prevent microwave leakage. For effective shielding, the mesh diameter is generally less than 2mm.

[0003] However, the tiny mesh openings result in low light transmittance and poor visibility in the viewing window, making it difficult for users to observe the cooking status of the food. This is especially true during the baking function; if users cannot clearly and accurately judge the food's condition, the cooking results will be poor. The mesh openings make observation difficult in all modes, leading to a poor user experience. Ensuring microwave functionality comes at the expense of the experience of other functions. Utility Model Content

[0004] Since the existing microwave oven's mesh structure, designed to prevent microwave leakage, obstructs the view and makes it difficult for users to observe the cooking status of the food, it is necessary to provide a door assembly and a microwave oven that combines steaming and baking functions.

[0005] According to one aspect of this application, a door assembly is provided, including a door body and a screen assembly, wherein the door body has a window; wherein the screen assembly includes a metal mesh curtain mounted on a pivot horizontally disposed above the window and rotatably mounted on the door body; the metal mesh curtain has an unfolded state and a rolled-up state that can be switched between each other, wherein when the metal mesh curtain is switched to the unfolded state, the metal mesh curtain covers the window; and when the metal mesh curtain is switched to the rolled-up state, the metal mesh curtain is rolled up on the pivot.

[0006] With this design, the metal mesh curtain covers the window when unfolded, thus achieving the shielding function of the door assembly against microwaves. When rolled up, it does not obstruct the window, making it convenient for users to observe the cooking status of the food. Moreover, the metal mesh curtain is stored in the pivot and the stability of the rolled-up state is maintained. Compared with the traditional fixed shielding structure, the door assembly provided by this application achieves flexible switching between opening and closing the window, which can meet the electromagnetic shielding requirements of the steam oven in microwave heating mode and the visibility requirements in steaming and baking modes.

[0007] In one embodiment of this application, the door assembly further includes a drive motor that drives the shaft.

[0008] With this configuration, the door assembly uses a rotatable shaft in conjunction with a drive motor to automatically unfold and retract the metal mesh curtain. The drive motor facilitates the automatic unfolding and retraction of the metal mesh curtain, eliminating the need for manual operation by the user and preventing microwave leakage caused by the user forgetting to unfold the metal mesh curtain.

[0009] In one embodiment of this application, the door assembly further includes a pair of guide rails located on both sides of the window and fixed to the door body, and the mesh curtain assembly further includes a support shaft fixedly connected to the metal mesh curtain, with both ends of the support shaft slidably mounted on the two guide rails respectively.

[0010] With this configuration, the support shaft acts as a rigid support and shape stabilizer. During the winding and unwinding process, the sliding fit between the support shaft and the guide rail can guide the free edge of the metal mesh curtain to move smoothly along the trajectory of the guide rail, preventing the metal mesh curtain from deforming or wrinkling.

[0011] In one embodiment of this application, the guide rail includes a connecting portion fixedly connected to the door body and a track portion fixedly connected to the connecting portion and spaced apart from the door body to form a sliding space, and the end of the support shaft is movably placed in the sliding space.

[0012] This design limits the range of motion of the support shaft end in the sliding space, preventing it from easily slipping off when it slides in the sliding space. The arrangement of the track and the door body at intervals also helps to make full use of the space inside the door assembly and minimize the thickness of the door assembly.

[0013] In one embodiment of this application, the connecting portion includes a support base that fits against the door body and a plurality of connecting blocks that are fixedly connected to the support base and arranged at intervals. The connecting blocks are fixedly connected to the door body, and the track portion extends from the side of the support base away from the door body toward the window to form the sliding space with the door body.

[0014] This configuration, with the support base fitting snugly against the door body, further compresses the sliding space. In particular, it acts as a stop on the end of the support shaft along its axial direction. When the metal mesh curtain deviates during its winding process around the shaft, the support base can promptly prevent the support shaft from shifting under such circumstances, thus achieving a correction effect. The evenly distributed multiple connecting blocks can distribute the force on the track to the door body, making the force on the track more uniform and further enhancing the stability of the guide rail installation, ensuring the long-term stable operation of the curtain assembly.

[0015] In one embodiment of this application, the connecting block has a first bolt hole, and the door body has a second bolt hole corresponding to the first bolt hole.

[0016] This design facilitates the assembly and maintenance of the guide rails, and the second bolt hole on the door body also provides an installation position for subsequent upgrades and iterations of the mesh curtain assembly.

[0017] In one embodiment of this application, the mass of the support shaft is greater than or equal to the mass of the metal mesh curtain.

[0018] With this setup, the support shaft causes the metal mesh curtain to hang down and unfold naturally, allowing it to cover the window more tightly and flatly. This helps reduce wrinkles and stacking. In addition, the metal mesh curtain usually has a certain degree of elasticity, and the pulling action of the support shaft makes the metal mesh curtain cover the window more flat, thereby further reducing microwave leakage.

[0019] In one embodiment of this application, the door assembly further includes a magnetic suction member fixed below the window, and the support shaft is magnetically connected to the magnetic suction member.

[0020] With this setup, when the metal mesh curtain is in the unfolded state, the support shaft descends to below the window and is attracted by the magnetic component, thereby positioning the support shaft below the window of the door assembly. This ensures that the metal mesh curtain completely covers the window, thus reducing microwave leakage.

[0021] In one embodiment of this application, the number of magnetic attractors is multiple and they are arranged at intervals along the lateral direction.

[0022] This design creates multiple magnetic attraction points, greatly enhancing the magnetic attraction between the support shaft and the magnetic components, making the connection between the support shaft and the magnetic components more secure. At the same time, the spaced arrangement of multiple magnetic components makes the support shaft more evenly stressed, avoiding problems such as support shaft tilting that may be caused by single-point magnetic attraction, and further improving the stability and reliability of the metal mesh curtain in the unfolded state.

[0023] In one embodiment of this application, the door body includes a door panel providing the window and abutment ribs protruding from the door panel and arranged around the window to form a receiving groove, wherein the mesh curtain assembly is accommodated in the receiving groove.

[0024] This design increases the overall rigidity of the door assembly and, by surrounding the window, helps reduce microwave leakage. Furthermore, the abutment rib supports and abuts the inner glass of the door, which, by closing the receiving groove with the inner glass, isolates the receiving groove from the inner space to protect the curtain assembly.

[0025] According to another aspect of this application, this application also provides a steam oven / grill combo, including an inner cavity assembly and the aforementioned door assembly, the door assembly being installed on the inner cavity assembly.

[0026] With this design and the aforementioned door assembly, when the steam oven is in microwave heating mode, the metal mesh curtain is in an unfolded state to block the window, thereby preventing microwave leakage. In steaming and baking modes, the metal mesh curtain can be switched to a rolled-up state to allow users to easily observe the cooking status of the food inside. This takes into account the different needs of the multi-functional modes and improves the overall user experience and safety of the steam oven. Attached Figure Description

[0027] Figure 1 A schematic diagram of a door assembly provided in this application;

[0028] Figure 2 for Figure 1 The diagram shows the structure of the door assembly when the metal mesh curtain is in the unfolded state.

[0029] Figure 3 for Figure 1 A magnified view of the door assembly shown at point X;

[0030] Figure 4 for Figure 1 The diagram shows the structure of the guide rail in the door assembly.

[0031] Figure label:

[0032] 10. Door body; 101. Window; 102. Receiving groove; 11. Door panel; 12. Abutment rib; 13. Positioning bracket; 20. Net curtain assembly; 21. Rotating shaft; 22. Drive motor; 23. Metal mesh curtain; 24. Support shaft; 30. Guide rail; 31. Track section; 32. Connecting section; 321. Support base; 322. Connecting block; 3221. First bolt hole; 40. Magnetic suction component. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model 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 full understanding of this utility model. However, this utility model can be implemented 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 this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0037] In this utility model, 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," "on top of," and "over" 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.

[0038] 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.

[0039] In steam ovens with microwave function, to shield microwaves from the oven door, tiny mesh holes are typically machined into the door to form a perforated plate to prevent microwave leakage. To achieve good shielding, the mesh diameter is generally less than 2mm. However, these tiny mesh holes result in low light transmittance and poor visibility through the viewing window, making it difficult for users to observe the cooking status of the food. Especially during the baking function, if users cannot clearly and accurately judge the food's condition, the cooking results will be poor. The presence of the mesh holes makes observation difficult in all modes, leading to a poor user experience. Ensuring microwave functionality significantly sacrifices the experience of other functions.

[0040] Therefore, it is necessary to provide a door assembly and a steam-bake combo oven that can meet the needs of observing the cooking status of food in both steaming and baking modes.

[0041] Please see Figures 1 to 3 In one embodiment provided in this application, the door assembly includes a door body 10 and a mesh curtain assembly 20. The door body 10 has a window 101. The mesh curtain assembly 20 includes a pivot 21, a drive motor 22, and a metal mesh curtain 23. The pivot 21 is horizontally arranged above the window 101 and rotatably mounted on the door body 10. Specifically, it is mounted through a positioning bracket 13 fixed to the door body 10. The drive motor 22 is driven and connected to the pivot 21. The metal mesh curtain 23 is mounted on the pivot 21. The metal mesh curtain 23 has an unfolded state and a rolled-up state that can be switched between each other. When the metal mesh curtain 23 is switched to the unfolded state, the metal mesh curtain 23 covers the window 101 to block microwave leakage. The metal mesh curtain 23 is rolled up on the pivot 21 to facilitate the user to observe the cooking status of the food in the inner pot. In the steaming and baking modes of the steam oven / grill combo, the drive motor 22 drives the rotating shaft 21 to rotate, causing the metal mesh curtain 23 to retract and wrap around the rotating shaft 21. In the microwave heating mode, the drive motor 22 drives the rotating shaft 21 to rotate in the opposite direction, causing the metal mesh curtain 23 to cover the window 101 to shield microwaves and prevent microwave leakage from causing adverse effects on the human body. The door assembly provided in this application can achieve flexible switching between opening and closing the window, taking into account both the electromagnetic shielding requirements of the steam oven / grill combo in microwave heating mode and the visibility requirements in steaming and baking modes.

[0042] Specifically, such as Figure 1As shown, the door assembly also includes a pair of guide rails 30 located on both sides of the window 101 and fixed to the door body 10. The mesh curtain assembly 20 also includes a support shaft 24 fixedly connected to the metal mesh curtain 23, with both ends of the support shaft 24 slidably mounted on the two guide rails 30. On the one hand, the support shaft 24 supports and shapes the free edges of the metal mesh curtain 23, ensuring the consistency of the overall shape of the metal mesh curtain 23 throughout the entire rolling and unrolling process, and preventing deformation and wrinkles of the metal mesh curtain 23. On the other hand, the support shaft 24 slides smoothly under the guidance of the guide rails 30, allowing the metal mesh curtain 23 to stably switch between the unfolded and rolled-up states.

[0043] Optional, such as Figure 1 and Figure 3 As shown, the guide rail 30 includes a connecting portion 32 fixedly connected to the door body 10 and a track portion 31 fixedly connected to the connecting portion 32 and spaced apart from the door body 10 to form a sliding space. The end of the support shaft 24 is movably placed in the sliding space. This sliding space restricts the range of motion of the end of the support shaft 24, and the support shaft 24 will not easily slip off when sliding in the sliding space. The spaced arrangement of the track portion 31 and the door body 10 also helps to make full use of the internal space of the door assembly and minimize the thickness of the door assembly.

[0044] Furthermore, such as Figure 3 and Figure 4 As shown, the connecting part 32 includes a support base 321 that fits against the door body 10 and a plurality of connecting blocks 322 that are fixedly connected to the support base 321 and arranged at intervals. The connecting blocks 322 are fixedly connected to the door body 10. The track part 31 extends from the side of the support base 321 away from the door body 10 toward the window 101 to form a sliding space with the door body 10. First, the support base 321 fits against the door body 10, further compressing the sliding space. In particular, it forms a stop on the end of the support shaft 24 along the axial direction of the support shaft 24. When the metal mesh curtain 23 is misaligned during the process of being wound around the rotating shaft 21, the support base 321 can promptly block the offset of the support shaft 24 under the above-mentioned misalignment, thereby achieving the effect of correction. Second, the plurality of connecting blocks 322 are evenly distributed, which can disperse and transmit the force on the track part 31 to the door body 10, making the force on the track part 31 more uniform, further enhancing the stability of the guide rail 30 installation, and ensuring the long-term stable operation of the mesh curtain assembly 20. To facilitate the assembly and maintenance of the guide rail 30, the connecting block 322 is provided with a first bolt hole 3221, and the door body 10 is provided with a second bolt hole corresponding to the first bolt hole 3221. The second bolt hole also provides an installation position for the subsequent upgrade and iteration of the mesh curtain assembly 20.

[0045] Optionally, in one embodiment provided in this application, the mass of the support shaft 24 is greater than or equal to the mass of the metal mesh curtain 23. In this way, the support shaft 24 drives the metal mesh curtain 23 to hang down and unfold naturally, so that the metal mesh curtain 23 can cover the window 101 more tightly and flatly, which helps to reduce wrinkles and stacking. In addition, the metal mesh curtain 23 usually has a certain degree of elasticity. The pulling action of the support shaft 24 makes the metal mesh curtain 23 cover the window 101 more flat, thereby further reducing microwave leakage.

[0046] In addition, such as Figure 1 As shown, in one embodiment provided in this application, the door assembly further includes a magnetic suction member 40 fixed below the window 101, and the support shaft 24 is magnetically connected to the magnetic suction member 40. When the metal mesh curtain 23 is in the unfolded state, the support shaft 24 descends below the window 101 and attracts the magnetic suction member 40, thereby positioning the support shaft 24 below the window 101 of the door assembly, ensuring that the metal mesh curtain 23 completely covers the window 101, thereby reducing microwave leakage. Specifically, there are multiple magnetic suction members 40 arranged at intervals along the horizontal direction, thus forming multiple magnetic suction points, which greatly enhances the magnetic attraction between the support shaft 24 and the magnetic suction member 40, making the connection between the support shaft 24 and the magnetic suction member 40 more secure; at the same time, the interval arrangement of multiple magnetic suction members 40 makes the support shaft 24 more evenly stressed, avoiding problems such as the skewing of the support shaft 24 that may be caused by single-point magnetic attraction, further improving the stability and reliability of the metal mesh curtain 23 in the unfolded state.

[0047] like Figure 1 As shown, the door body 10 includes a door panel 11 providing a window 101 and a retaining rib 12 protruding from the door panel 11 and arranged around the window 101 to form a receiving groove 102, in which the mesh curtain assembly 20 is housed. The retaining rib 12 increases the overall rigidity of the door assembly and, by surrounding the window 101, helps to reduce microwave leakage. In addition, the retaining rib 12 supports and abuts against the inner glass of the door, thereby sealing the receiving groove 102 and isolating it from the inner space to protect the mesh curtain assembly 20.

[0048] like Figure 4 As shown, in order to fit the narrow space of the receiving groove 102, the support 321 and the track 31 are specifically plate-shaped. The support 321 and the track 31 are integrally connected and L-shaped to better fit the receiving groove 102.

[0049] According to another aspect of this application, a steam oven / grill combo is also provided, including an inner cavity assembly and the aforementioned door assembly, the door assembly being installed on the inner cavity assembly. Due to the use of the aforementioned door assembly, when the steam oven / grill combo is in microwave heating mode, the metal mesh curtain 23 is unfolded to prevent microwave leakage. In steaming and grilling modes, the metal mesh curtain 23 can be switched to a rolled-up state to facilitate user observation of the cooking status of the food inside, thus accommodating different needs in multiple modes and improving the overall user experience and safety of the steam oven / grill combo.

[0050] The smart appliance equipped with this door component has a smart voice control module, which includes a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the drive motor to perform corresponding operations, thereby realizing the intelligent control of the curtain component and improving the user experience of using the smart appliance.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A door assembly, characterized in that, include: The main body of the door (10) has a window (101); The mesh curtain assembly (20) includes a pivot (21) horizontally positioned above the window (101) and rotatably mounted on the door body (10) and a metal mesh curtain (23) mounted on the pivot (21); the metal mesh curtain (23) has an unfolded state and a rolled-up state that can be switched between each other. When the metal mesh curtain (23) is switched to the unfolded state, the metal mesh curtain (23) covers the window (101). When the metal mesh curtain (23) is switched to the winding state, the metal mesh curtain (23) is wound around the rotating shaft (21).

2. The door assembly according to claim 1, characterized in that, The door assembly also includes a drive motor (22) that drives the shaft (21).

3. The door assembly according to claim 1, characterized in that, The door assembly also includes a pair of guide rails (30) located on both sides of the window (101) and fixed to the door body (10). The mesh curtain assembly (20) also includes a support shaft (24) fixedly connected to the metal mesh curtain (23). The two ends of the support shaft (24) are slidably mounted on the two guide rails (30).

4. The door assembly according to claim 3, characterized in that, The guide rail (30) includes a connecting part (32) fixedly connected to the door body (10) and a track part (31) fixedly connected to the connecting part (32) and spaced apart from the door body (10) to form a sliding space, and the end of the support shaft (24) is movably placed in the sliding space.

5. The door assembly according to claim 4, characterized in that, The connecting part (32) includes a support base (321) that fits against the door body (10) and a plurality of connecting blocks (322) that are fixedly connected to the support base (321) and spaced apart. The connecting blocks (322) are fixedly connected to the door body (10). The track part (31) extends from the side of the support base (321) away from the door body (10) toward the window (101) to form the sliding space with the door body (10).

6. The door assembly according to claim 3, characterized in that, The mass of the support shaft (24) is greater than or equal to the mass of the metal mesh curtain (23).

7. The door assembly according to claim 3, characterized in that, The door assembly also includes a magnetic suction member (40) fixed below the window (101), and when the metal mesh curtain is in the unfolded state, the support shaft (24) is magnetically connected to the magnetic suction member (40).

8. The door assembly according to claim 7, characterized in that, The number of magnetic suction elements (40) is multiple and they are arranged at intervals along the lateral direction.

9. The door assembly according to any one of claims 1 to 8, characterized in that, The door body (10) includes a door panel (11) providing the window (101) and abutment rib (12) protruding from the door panel (11) and arranged around the window (101) to form a receiving groove (102), and the mesh curtain assembly (20) is housed in the receiving groove (102).

10. A steam oven / grill combo, characterized in that, include: Inner liner components; The door assembly as claimed in any one of claims 1 to 9, wherein the door assembly is mounted on the inner liner assembly.

Images