Door assembly and steaming oven

Abstract

The utility model relates to a door assembly and a steaming oven. The door assembly comprises an oven body, a pair of cooling fans and a control panel. The box body assembly is provided with a first containing cavity, a second containing cavity located below the first containing cavity, a pair of communicating holes communicating with the first containing cavity and the second containing cavity and arranged at intervals, a first air inlet communicating with the first containing cavity and an air outlet communicating with the second containing cavity. The two heat dissipation fans correspond to the two communicating holes respectively and are installed in the first containing cavity, and the control panel is located between the two heat dissipation fans and is installed on the box body, so that the heat dissipation efficiency of the door assembly is improved, the control panel is prevented from being damaged by heating, and the risk that a user is scalded by the door assembly can also be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steaming oven, in particular to a door subassembly and steaming oven. BACKGROUND

[0002] With the intelligent development of steaming oven, the function of steaming oven is more and more rich. The existing intelligent steaming oven is usually integrated with display screen and control panel assembly on the door subassembly, and the user only needs to select the corresponding menu according to the prompt of the screen to realize one-key cooking, which reduces the operation threshold of cooking, and the taste of the cooked food can also meet the needs of consumers.

[0003] However, the long time high temperature inside the steaming oven leads to the temperature rise of the door subassembly, which is easy to burn the touch screen, and the temperature of the door handle and the outer glass also rises, which exists the risk of scalding the user. UTILITY MODEL CONTENT

[0004] Based on the fact that the door subassembly of the existing steaming oven is too high in temperature and is easy to burn the control panel and scald the user, it is necessary to provide a door subassembly and steaming oven.

[0005] A door subassembly, comprising:

[0006] a box body having a first containing cavity, a second containing cavity located below the first containing cavity, a pair of communication holes communicated with the first containing cavity and the second containing cavity and arranged at intervals, a first air inlet hole communicated with the first containing cavity, and an air outlet hole communicated with the second containing cavity;

[0007] a pair of heat dissipation fans installed in the first containing cavity and corresponding to the two communication holes respectively; and

[0008] a control panel installed at a position of the box body between the two heat dissipation fans and corresponding to the first air inlet hole.

[0009] In this way, by arranging the control panel between the two heat dissipation fans and corresponding to the first air inlet hole, under the negative pressure of the heat dissipation fans, the cold air entering the first containing cavity from the first air inlet hole will directly contact the control panel, thereby improving the heat dissipation efficiency of the control panel. The two heat dissipation fans draw away the airflow passing through the control panel from the two sides of the control panel, on the one hand shortening the transmission path of the airflow, and on the other hand, the two communication holes corresponding to the two outlets of the airflow path in the first containing cavity are beneficial to ensuring the uniformity of the temperature of the entire control panel, further improving the heat dissipation effect, and preventing the control panel from being damaged by heat; the airflow flowing out of the communication hole continues to pass through the second containing cavity and flows out from the air outlet hole, realizing the overall heat dissipation of the door subassembly, thereby reducing the risk of scalding the user.

[0010] In some embodiments, the cabinet comprises a frame providing the air inlet and having a lower opening, a partition plate horizontally arranged in the frame and providing the communication hole, and a door outer plate and a door inner plate arranged in a spaced manner, the door outer plate and the door inner plate being respectively arranged on the outer side and the inner side of the frame to form the first accommodating cavity, the second accommodating cavity and the air outlet together with the frame and the partition plate.

[0011] In this way, the assembling manner is conducive to reducing the production cost, the air outlet formed by the combination of the lower opening of the frame and the door outer plate and the door inner plate reduces the hole opening on the frame, and the smoothness of the air outlet is prompted. It can be understood that in other embodiments, the frame can also be provided with an upper opening to form an air inlet with the door outer plate and the door inner plate, and the smoothness of the air inlet is further improved.

[0012] In some embodiments, the frame comprises a pair of support columns arranged in a spaced manner, an upper cover located above the two support columns and connected to the two support columns, and the first air inlet is located on the upper cover.

[0013] In this way, by arranging the air inlet on a separate upper cover, the influence of the hole opening on the entire frame is reduced, the processing difficulty is reduced, and unnecessary material waste caused by hole opening errors can also be avoided.

[0014] In some embodiments, the upper cover comprises a cover plate and extension plates respectively mounted on both ends of the cover plate, the extension plates are mounted on the support columns, and the first air inlet is located on the cover plate.

[0015] In this way, by arranging the first air inlet on the cover plate located above the frame, the air flow in the first accommodating cavity can wrap the control plate, which is conducive to improving the heat dissipation effect.

[0016] In some embodiments, the extension plate is also provided with a second air inlet.

[0017] In this way, on the one hand, it can ensure the smoothness of the air flow in the first accommodating cavity, and on the other hand, it can also supplement air from the left and right sides of the door assembly to improve the heat dissipation effect.

[0018] In some embodiments, the upper cover also has a plurality of reinforcing ribs arranged in a spaced manner on the inner side of the extension plate.

[0019] In this way, the problem of structural strength reduction caused by the second air inlet on the extension plate can be compensated for, and the deformation of the door assembly can be reduced.

[0020] In some embodiments, the control plate is fixedly connected to the door outer plate and the control plate is arranged in a spaced manner with the door inner plate.

[0021] In this way, the air flow also flows through the gap between the control panel and the inner door panel, forming a wind wall and reducing the heat transfer from the inner door panel to the control panel.

[0022] In some embodiments, the heat dissipation fan comprises a fan body with an air suction port and an air exhaust port, and two air guide covers respectively covering the air exhaust port and the communication hole.

[0023] In this way, the stability of the air flow path in the first accommodating cavity is improved, and the cold flow can wrap the control panel. If the air guide cover is not arranged, turbulence will occur at the communication hole and the cold flow at the control panel will be dispersed, resulting in reduced heat dissipation efficiency.

[0024] In some embodiments, the fan body is installed on the outer door panel, and the air suction port is arranged towards the inner door panel.

[0025] In this way, the fan body forms a negative pressure area on the side close to the inner door panel in the first accommodating cavity, thereby guiding the cold flow to flow towards the inner door panel. The cold flow entering from the first air inlet hole located above will pass through the gap between the control panel and the inner door panel and then flow to the negative pressure areas on both sides. In this process, the cold flow path covers the control panel. The cold flow entering from the second air inlet hole located on the side will surround the fan body and reach the negative pressure area. Since the transmission path of this cold flow is short, the temperature is low, and the heat dissipation fan is also cooled, thereby avoiding the heating of the fan body.

[0026] The application also provides a steam oven, comprising:

[0027] a liner assembly; and

[0028] The door assembly as described above is installed on the liner assembly, and the first accommodating cavity of the door assembly is located above the liner opening of the liner assembly.

[0029] In this way, the first accommodating cavity is away from the liner opening, thereby avoiding the heat source, so that the temperature rise of the first accommodating cavity of the door assembly is as low as possible. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 1 is a structural schematic diagram of a door assembly in an embodiment of the present application;

[0031] Figure 2 FIG. 2 is a structural schematic diagram of a middle upper cover in an embodiment of the present application; Figure 1

[0032] FIG. 3 is a structural schematic diagram of a lower cover in an embodiment of the present application; Figure 3 Figure 2 FIG. 4 is a partial enlarged view of the upper cover at X shown in FIG. 3.

[0033] REFERENCE NUMERALS:

[0034] ​10, box; 101, first containing cavity; 102, second containing cavity; 103, communication hole; 104, first air inlet; 105, second air inlet; 11, frame; 111, support column; 112, upper cover; 11201, let go of hole; 1121, cover plate; 1122, extension plate; 1123, reinforcing rib; 12, partition; 13, door outer plate; 20, cooling fan; 21, fan main body; 22, air guide cover; 30, control panel. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0036] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0037] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0038] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0040] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0041] With the intelligent development of the steaming oven, the function of the steaming oven is more and more rich. The existing intelligent steaming oven usually integrates a display screen and a control panel assembly on the door assembly, and the user only needs to select the corresponding menu according to the prompt of the screen to realize one-key cooking, which reduces the operation threshold of cooking, and the taste of the cooked food can also meet the needs of consumers.

[0042] However, the long-time high temperature inside the steaming oven causes the temperature of the door assembly to rise, which can easily burn the touch screen and the control panel, and the temperature of the door handle and the outer glass will also rise, which poses a risk of scalding the user. In the existing steaming oven, either the control panel is integrated on the door handle, and the display screen is externally mounted, which is not only not beautiful, but also still interfered by the temperature rise of the door assembly; or an additional air duct is provided at the rear end (i.e. above the inner container assembly) and the door assembly is cooled, which can guide the airflow circulation in the door assembly, but the gas in the air duct is still heated by the inner container, resulting in poor cooling effect.

[0043] Therefore, it is necessary to provide a door assembly and a steaming oven with good heat dissipation effect for the built-in control panel.

[0044] Please refer to Figure 1 , Figure 1The utility model discloses a structure diagram of door assembly in an embodiment. In order to facilitate the internal structure of door assembly, the door inner plate is hidden in the drawings. The door assembly provided by the application comprises a box body 10, a pair of cooling fans 20 and a control panel 30, wherein the box body assembly has a first containing cavity 101, a second containing cavity 102 located below the first containing cavity 101, a pair of communication holes 103 communicated with the first containing cavity 101 and the second containing cavity 102 and arranged at intervals, a first air inlet hole 104 communicated with the first containing cavity 101 and an air outlet hole (hidden in the drawing because the cooling fan is blocked, so it is not shown) communicated with the second containing cavity 102; two cooling fans 20 are installed in the first containing cavity 101 and correspond to the two communication holes 103 respectively, and the control panel 30 is installed at the position of the box body 10 between the two cooling fans 20 and corresponds to the first air inlet hole 104. By arranging the control panel 30 between the two cooling fans 20 and corresponding to the first air inlet hole 104, under the negative pressure action of the cooling fan 20, the cold air entering the first containing cavity 101 from the first air inlet hole 104 will directly contact the control panel 30, thereby improving the heat dissipation efficiency of the control panel. The two cooling fans 20 draw the airflow passing through the control panel 30 from the two sides of the control panel 30, on the one hand, the transmission path of the airflow is shortened, and on the other hand, the two communication holes 103 correspond to the two outlets of the airflow path in the first containing cavity 101, which is beneficial to ensuring the temperature uniformity of the entire control panel, further improving the heat dissipation effect and preventing the control panel 30 from being damaged by heat. The airflow flowing out of the communication hole 103 continues to pass through the second containing cavity 102 and flows out of the air outlet hole, realizing the overall heat dissipation of the door assembly, thereby reducing the risk of scalding the user.

[0045] As Figure 1 shown, specifically, the box body 10 comprises a frame 11, a partition plate 12, a door outer plate 13 and a door inner plate arranged at intervals, the air inlet hole is located in the frame 11, the frame 11 has a lower opening, the partition plate 12 is transversely arranged in the frame 11, the communication hole 103 is located in the partition plate 12, and the door outer plate 13 and the door inner plate are respectively arranged on the outer side and the inner side of the frame 11 (the outer side of the frame 11 is away from the inner cavity, and the inner side of the frame 11 faces the inner cavity). In this way, the first containing cavity 101, the second containing cavity 102 and the air outlet hole formed below the door assembly are formed. Through this assembly mode, it is beneficial to reduce the production cost. The lower opening of the frame 11 and the door outer plate 13 and the door inner plate combined to form the air outlet hole reduce the opening in the frame 11, which improves the smoothness of the air outlet. It can be understood that in other embodiments, the frame 11 can also be provided with an upper opening to form an air inlet hole with the door outer plate 13 and the door inner plate, further improving the smoothness of the air inlet.

[0046] As Figure 1 and Figure 2As shown, specifically, in an embodiment provided by the present application, the frame 11 comprises a pair of support columns 111 arranged at intervals, an upper cover 112 located above the two support columns 111 and connecting the two support columns 111, and the first air inlet hole 104 is located on the upper cover 112. By arranging the air inlet hole on a separate upper cover 112, it is beneficial to reduce the influence of the opening on the entire frame 11, reduce the processing difficulty, and also avoid unnecessary material waste caused by opening error. It can be understood that since the support column 111 does not need to be provided with air holes such as air inlet holes, the structural rigidity can also be ensured, which is beneficial to further increase the rigidity of the entire door assembly.

[0047] Please refer to Figure 2 and Figure 3 , Figure 2 for Figure 1 the structure diagram of the upper cover 112, Figure 3 for Figure 2 the enlarged view of the upper cover shown at X. Specifically, in an embodiment provided by the present application, the upper cover 112 is composed of a cover plate 1121 and an extension plate 1122 mounted at both ends of the cover plate 1121 respectively, the extension plate 1122 is mounted on the support column 111 for fixing the upper cover 112, and the first air inlet hole 104 is located on the cover plate 1121, so that the airflow in the first accommodating cavity 101 can wrap the control panel 30, which is beneficial to improve the heat dissipation effect. Further, since the first air inlet hole 104 is arranged upward, when the first air inlet hole 104 is blocked, the airflow obstruction is easy to damage the cooling fan 20. In order to avoid this problem, the present application also opens a second air inlet hole 105 on the extension plate 1122, on the one hand, this can ensure the smooth flow of air in the first accommodating cavity 101, on the other hand, this can also supplement air from the left and right sides of the door assembly, and improve the heat dissipation effect. Further, in order to reduce the risk of foreign matter falling into the first accommodating cavity 101, the number of the first air inlet holes 104 is multiple and arranged at intervals above the control panel 30, relatively, the size of each first air inlet hole 104 is reduced, thereby achieving the purpose of limiting the entry of sundries into the first accommodating cavity 101. Further, in order to make up for the problem of structural strength reduction caused by opening the second air inlet hole 105 on the extension plate 1122, in an embodiment provided by the present application, the upper cover 112 also has a plurality of reinforcing ribs 1123 arranged at intervals on the inner side of the extension plate 1122. In addition, the upper cover also has a clearance hole 11201 corresponding to the position of the cooling fan to avoid interference with the installation of the cooling fan.

[0048] As Figure 1As shown, in order to reduce the influence of the inner door plate on the control plate 30 as much as possible, in an embodiment provided by the present application, the control plate 30 is fixedly connected to the outer door plate 13 and is arranged spaced apart from the inner door plate, so that the airflow also flows through the gap between the control plate 30 and the inner door plate, thereby forming a wind wall and reducing the heat transfer from the heat source, i.e., the inner door plate, to the control plate 30.

[0049] Optionally, in an embodiment provided by the present application, the heat dissipation fan 20 includes a fan body 21 and a wind guide cover 22, the fan body 21 has an air suction port and an air exhaust port, and the wind guide cover 22 is covered on the air exhaust port and the communication hole 103 at two ends, respectively, so as to improve the stability of the airflow path in the first accommodating cavity 101 and ensure that the cold airflow can wrap the control plate 30. If the wind guide cover 22 is not arranged, turbulence will be generated at the communication hole and the cold airflow at the control plate 30 will be dispersed, resulting in reduced heat dissipation efficiency. Further, in order to optimize the heat dissipation path in the first accommodating cavity 101, the fan body 21 is installed on the outer door plate 13, and the air suction port of the fan body 21 is arranged towards the inner door plate, so that the fan body 21 forms a negative pressure area on the side close to the inner door plate in the first accommodating cavity 101, thereby guiding the cold airflow to flow towards the inner door plate. Specifically, the cold airflow entering from the first air inlet hole 104 located above will pass through the gap between the control plate 30 and the inner door plate and then flow to the negative pressure areas on both sides. In this process, the cold airflow path covers the control plate 30, while the cold airflow entering from the second air inlet hole 105 located on the side will surround the fan body 21 and reach the negative pressure area. Since the transmission path of the cold airflow is relatively short, the temperature is relatively low, and thus the heat dissipation fan can be cooled, thereby avoiding the accumulation of heat in the fan body 21.

[0050] The present application also provides a steam oven, which includes a liner assembly and a door assembly installed on the liner assembly, and the first accommodating cavity 101 of the door assembly is located above the liner opening of the liner assembly, in other words, the second accommodating cavity 102 corresponds to the position of the liner opening, and the first accommodating cavity 101 is away from the liner opening, thereby avoiding the heat source, so as to reduce the temperature rise of the first accommodating cavity 101 of the door assembly as much as possible.

[0051] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0052] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A door assembly characterized by, The application relates to a cabinet (10) comprising a first accommodating cavity (101), a second accommodating cavity (102) located below the first accommodating cavity (101), a pair of communicating holes (103) communicated with the first accommodating cavity (101) and the second accommodating cavity (102) and arranged at intervals, a first air inlet hole (104) communicated with the first accommodating cavity (101) and an air outlet hole communicated with the second accommodating cavity (102); a pair of heat dissipation fans (20) installed in the first accommodating cavity (101) and corresponding to the two communicating holes (103) respectively; and a control panel (30) installed in the cabinet (10) at a position between the two heat dissipation fans (20) and corresponding to the first air inlet hole (104). The cabinet (10) comprises a frame (11) providing the air inlet hole and having a lower opening, a partition plate (12) horizontally arranged in the frame (11) and providing the communicating holes (103) and door outer plates (13) and door inner plates arranged at intervals, the door outer plates (13) and the door inner plates being respectively arranged on the outer side and the inner side of the frame (11) to form the first accommodating cavity (101), the second accommodating cavity (102) and the air outlet hole together with the frame (11) and the partition plate (12). The frame (11) comprises a pair of support columns (111) arranged at intervals, an upper cover (112) located above the two support columns (111) and connecting the two support columns (111), and the first air inlet hole (104) is located on the upper cover (112). The upper cover (112) comprises a cover plate (1121) and extension plates (1122) respectively installed on both ends of the cover plate (1121), the extension plates (1122) are installed on the support columns (111), and the first air inlet hole (104) is located on the cover plate (1121).

2. The door assembly of claim 1, wherein, The extension plates (1122) are also provided with second air inlet holes (105).

3. The door assembly of claim 2, wherein, The upper cover (112) is also provided with a plurality of reinforcing ribs (1123) arranged at intervals on the inner side of the extension plates (1122).

4. The door assembly of claim 3, wherein, The control panel (30) is fixedly connected to the door outer plate (13) and the control panel (30) is arranged at intervals from the door inner plate.

5. The door assembly of claim 4, wherein, The heat dissipation fan (20) comprises a fan body (21) provided with an air suction port and an air exhaust port and air guide covers (22) respectively covering the air exhaust port and the communicating hole (103) at two ends.

6. The door assembly of claim 5, wherein, The fan body (21) is installed on the door outer plate (13) and the air suction port is arranged towards the door inner plate.

7. The door assembly of any one of claims 2 to 6, wherein, The application relates to a cabinet (10) comprising a first accommodating cavity (101), a second accommodating cavity (102) located below the first accommodating cavity (101), a pair of communicating holes (103) communicated with the first accommodating cavity (101) and the second accommodating cavity (102) and arranged at intervals, a first air inlet hole (104) communicated with the first accommodating cavity (101) and an air outlet hole communicated with the second accommodating cavity (102); a pair of heat dissipation fans (20) installed in the first accommodating cavity (101) and corresponding to the two communicating holes (103) respectively; and a control panel (30) installed in the cabinet (10) at a position between the two heat dissipation fans (20) and corresponding to the first air inlet hole (104).

8. The door assembly of any one of claims 2 to 6, wherein, The application relates to a cabinet (10) comprising a first accommodating cavity (101), a second accommodating cavity (102) located below the first accommodating cavity (101), a pair of communicating holes (103) communicated with the first accommodating cavity (101) and the second accommodating cavity (102) and arranged at intervals, a first air inlet hole (104) communicated with the first accommodating cavity (101) and an air outlet hole communicated with the second accommodating cavity (102); a pair of heat dissipation fans (20) installed in the first accommodating cavity (101) and corresponding to the two communicating holes (103) respectively; and a control panel (30) installed in the cabinet (10) at a position between the two heat dissipation fans (20) and corresponding to the first air inlet hole (104).

9. The door assembly of claim 8, wherein, The application relates to a cabinet (10) comprising a first accommodating cavity (101), a second accommodating cavity (102) located below the first accommodating cavity (101), a pair of communicating holes (103) communicated with the first accommodating cavity (101) and the second accommodating cavity (102) and arranged at intervals, a first air inlet hole (104) communicated with the first accommodating cavity (101) and an air outlet hole communicated with the second accommodating cavity (102); a pair of heat dissipation fans (20) installed in the first accommodating cavity (101) and corresponding to the two communicating holes (103) respectively; and a control panel (30) installed in the cabinet (10) at a position between the two heat dissipation fans (20) and corresponding to the first air inlet hole (104).

10. A steam oven, characterized by ​ ​ ​ ​

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