A door assembly facilitating heat dissipation and a cooking device

Abstract

The utility model provides a door subassembly and cooking equipment beneficial to heat dissipation, the door subassembly includes: a door body, the door body forms a first surface and a second surface along the thickness direction, the first surface faces the equipment outside in use, the second surface faces the equipment inside in use, the inside of door body is equipped with the cooling channel of circuitous path along the thickness direction, the cooling channel is equipped with an air inlet and an air outlet, the air inlet is close to the first surface, the air outlet is close to the second surface. Compared with prior art, the door subassembly does not thicken the door body under the premise, is equipped with the cooling channel of circuitous path in the door body, significantly increases the heat dissipation area, effectively reduces the door body temperature, and sets up the air inlet at close to the first surface, since the first surface faces the equipment outside, air first cools the first surface, the first surface temperature of door body is low, and the scalding effect is good, avoids the user scalding.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a door assembly and cooking equipment that facilitates heat dissipation. Background Technology

[0002] The doors of existing steam ovens, ovens, or air fryers reach extremely high temperatures after prolonged high-power operation, which can easily cause burns. Existing cooling solutions include thickening the door and limiting the internal temperature.

[0003] If the door body is thickened, the thickness will be at least 45mm-55mm, making the door body bulky and the heat dissipation efficiency very low; if the temperature inside the cavity is restricted, the heating performance inside the cavity will be easily affected.

[0004] Therefore, existing problems need to be improved in order to solve the above-mentioned issues. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a door assembly and cooking equipment that facilitates heat dissipation. By improving the door body, it can significantly reduce the outer surface temperature of the door without increasing the door body thickness or ensuring heating performance, thus avoiding burns and effectively improving user safety during use.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A door assembly that facilitates heat dissipation includes:

[0008] A door body, wherein a first surface and a second surface are formed along the thickness direction, the first surface facing the outside of the equipment during use, and the second surface facing the inside of the equipment during use;

[0009] The door body has a cooling channel with a meandering path along the thickness direction inside. The cooling channel has an air inlet and an air outlet. The air inlet is close to the first surface, and the air outlet is close to the second surface.

[0010] Preferably, the device also includes an air duct assembly, wherein the air inlet is connected to the external atmosphere and the air outlet is adjacent to and in fluid communication with the air duct outlet of the air duct assembly, so as to form a low-pressure zone at the air outlet.

[0011] Preferably, the central axis of the air duct outlet of the air duct assembly is located adjacent to the central axis of the air outlet and arranged at an angle of 75-100°.

[0012] Preferably, the door body includes an outer glass, an inner glass and at least one heat-insulating glass arranged sequentially along the thickness direction, with the air inlet close to the outer glass and the air outlet close to the inner glass;

[0013] The cooling channel forms a meandering path between the outer glass, the heat-insulating glass, and the inner glass, and the cooling channel is at least partially sealed to allow airflow to pass within the cooling channel.

[0014] Preferably, the door includes an outer glass, an inner glass, and a first heat-insulating glass and a second heat-insulating glass arranged sequentially in the thickness direction, with the first heat-insulating glass and the second heat-insulating glass being arranged alternately so that the outer glass, the first heat-insulating glass, the second heat-insulating glass and the inner glass form a meandering cooling channel, and the airflow flows in a serpentine manner in the cooling channel.

[0015] The air inlet is close to the outer glass, and the air outlet is close to the inner glass. The air inlet and the air outlet are respectively located at the bottom and top of the cooling channel, thereby generating a continuous airflow from bottom to top in the cooling channel.

[0016] Preferably, the door body further includes an upper baffle and a lower baffle, which are respectively disposed at the upper and lower ends of the door body, together defining the flow direction of the cooling channel, so that the airflow flows from bottom to top through the air inlet and the cooling channel and is discharged from the air outlet.

[0017] Preferably, the door further includes a first fixing member, a second fixing member, and a top cover. The first fixing member and the second fixing member are respectively engaged with the edges of the outer glass and the inner glass. The upper baffle is connected to the first fixing member, and the lower baffle is connected to the second fixing member. The second fixing member has an opening and is connected to the air inlet.

[0018] The top cover is provided with multiple air outlets that are connected to the air outlet.

[0019] Preferably, a sealing element is provided between the first fixing member and the second fixing member and the inner glass and the outer glass.

[0020] Preferably, the outer glass, the heat-insulating glass, and the inner glass are all tempered glass.

[0021] A cooking appliance includes an appliance body connected to a heat dissipation-facilitating door assembly.

[0022] The beneficial effects of this utility model are:

[0023] Without thickening the door body, the heat dissipation area is significantly increased by setting a detour cooling channel inside the door body, which effectively reduces the door body temperature. At the same time, the air inlet is set near the first surface. Since the first surface faces the outside of the equipment, the air cools the first surface first. The temperature of the first surface of the door body is low, which has a good anti-scalding effect and avoids burns to users. Attached Figure Description

[0024] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0025] Figure 1 This is a schematic diagram of the structure of the cooking equipment;

[0026] Figure 2 This is an enlarged structural diagram of the cross-section at point A;

[0027] Figure 3 This is a schematic diagram of the door structure;

[0028] Figure 4 This is a schematic diagram showing the airflow through the cooling channel.

[0029] Figure 5 This is a schematic diagram of the top cover structure.

[0030] Reference numerals: 1. Equipment body; 2. Door; 21. Outer glass; 22. Inner glass; 23. Insulated glass; 231. First insulated glass; 232. Second insulated glass; 24. Upper baffle; 25. Lower baffle; 26. First fixing component; 27. Second fixing component; 28. Top cover; 281. Air outlet; 3. Air duct assembly; 31. Blower; 32. Ventilation duct; 321. Air duct outlet; 4. Cooling channel; 41. Air inlet; 42. Air outlet; 411. Normal pressure zone; 421. Low pressure zone. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0032] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figure 1-4 As shown, a door assembly that facilitates heat dissipation includes:

[0035] The device includes a door body 2 and an air duct assembly 3. The door body 2 has a first surface and a second surface formed along its thickness direction. The first surface faces the outside of the device during use, and the second surface faces the inside of the device during use. The air duct assembly includes a blower 31 and a ventilation duct 32, which has an air duct outlet 321.

[0036] The door body 2 has a cooling channel 4 with a meandering path along the thickness direction inside. The cooling channel 4 has an air inlet 41 and an air outlet 42. The air inlet 41 is connected to the external atmosphere of the equipment, and the air outlet 42 is adjacent to and fluidly connected to the air outlet 321 of the air duct assembly 3, so that a low-pressure zone 421 is formed at the air outlet 42.

[0037] The air inlet 41 is close to the first surface, and the air outlet 42 is close to the second surface. Without thickening the door body 2, the heat dissipation area is significantly increased by providing a detour-path cooling channel 4 inside the door body 2, effectively reducing the temperature of the door body 2. Since the door body 2 is not thickened, it does not appear bulky, and the user can pull the door body 2 more easily. At the same time, by placing the air inlet 41 close to the first surface, since the first surface faces the outside of the equipment, the air cools the first surface first, resulting in a low temperature of the first surface of the door body 2, providing good anti-scalding effect and preventing users from being burned.

[0038] In this embodiment, the door body 2 includes an outer glass 21, an inner glass 22, and at least one heat-insulating glass 23 arranged sequentially along the thickness direction. A cooling channel 4 with a tortuous path is formed between the outer glass 21, the heat-insulating glass 23, and the inner glass 22, and the cooling channel 4 is at least partially sealed to ensure airflow within the cooling channel 4. The air inlet 41 is close to the outer glass 21, and the air outlet 42 is close to the inner glass 22. It can be understood that the first surface of the door body 2 describes the outer glass 21, while the second surface of the door body 2 describes the inner glass 22.

[0039] The outer glass 21, the heat-insulating glass 23, and the inner glass 22 are all tempered glass. The main advantages of tempered glass include high strength, high safety, and good thermal stability. Specifically, tempered glass has higher bending and impact resistance than ordinary glass, making it perform better when subjected to external forces; and when tempered glass breaks, it forms small, blunt-edged fragments, greatly reducing the risk of injury; most importantly, tempered glass can withstand temperature differences from 150℃ to 300℃. Therefore, tempered glass is highly suitable for use in cooking equipment that requires frequent heating.

[0040] In a preferred embodiment, the door 2 includes an outer glass 21, an inner glass 22, and a first heat-insulating glass 231 and a second heat-insulating glass 232 arranged sequentially in the thickness direction. The first heat-insulating glass 231 and the second heat-insulating glass 232 are staggered to form a meandering cooling channel 4 between the outer glass 21, the first heat-insulating glass 231, the second heat-insulating glass 232, and the inner glass 22. The airflow in the cooling channel 4 flows in a serpentine manner, increasing the contact surface between the air and the door 2 and enhancing heat dissipation. At the same time, the air intake direction is from the air inlet 41 on the side of the outer glass 21, so that the air first contacts the side of the outer glass 21 with the lowest temperature, making the outer glass 21 the lowest temperature, improving the user experience and safety. The air inlet 41 is close to the outer glass 21, and the air outlet 42 is close to the inner glass 22. The air inlet 41 and the air outlet 42 are respectively located at the bottom and top of the cooling channel 4, thereby generating a continuous airflow from bottom to top in the cooling channel 4.

[0041] The central axis of the air outlet 321 of the air duct assembly is set close to the central axis of the air outlet 42 and arranged at 75-100°, so that the air in the cooling channel 4 moves upward. Specifically, the central axis of the air outlet 321 of the air duct assembly is set at 90° to the central axis of the air outlet 42, so that the air moves upward more easily.

[0042] The following describes the settings of the door body 2, including the angle settings of the air duct outlet 321 and the air outlet 42:

[0043] Since the air outlet 42 is located at the top of the cooling channel 4 and the air inlet 41 is located at the bottom of the cooling channel 4, and the door 2 and the air duct assembly 3 are arranged vertically and closely together, the airflow from the air outlet 281 of the air duct assembly 3 has a velocity V (fan blowing air). According to Bernoulli's equation P + 1 / 2pv*v + pgh = C (C: constant, P: fluid pressure, p: fluid density, v: flow velocity, g: gravitational acceleration, h: height; since the height h and gravitational acceleration g are constant, pgh is considered constant and has no effect).

[0044] Therefore, when there is no wind at the top of door 2, Pup = Pdown. When there is wind at the top of door 2, the larger v is, the lower Pup is. This creates a low-pressure zone 421 at the top of cooling channel 4, while the pressure at the bottom of cooling channel 4 is atmospheric pressure, which is called the normal pressure zone 411. Air will flow from the normal pressure zone 411 to the low-pressure zone 421, forming a continuous airflow from bottom to top.

[0045] The design scheme forms a meandering cooling pipe inside the door body 2. This cooling pipe can be regarded as a serpentine cooling pipe. When there is a pressure difference between the two sides of the door body 2 (the central axis of the air outlet 321 of the air duct assembly is set adjacent to the central axis of the air outlet 42 and installed at a 90° angle), convection is formed. The room temperature air comes from the bottom with higher pressure, follows the serpentine cooling pipe and fully contacts the inside of the door body 2, taking away the heat, and is discharged from the top air outlet 42. The heat inside the door body 2 is taken away and the temperature continues to drop. At the same time, the air intake direction is from the outer glass 21 side, so that the air first contacts the outer glass 21 side with the lowest temperature, making the outer glass 21 the lowest temperature. The user also comes into contact with the outer glass 21, which can improve the user experience.

[0046] like Figure 3 and Figure 5 As shown, the door body 2 also includes an upper baffle 24 and a lower baffle 25. The upper baffle 24 and the lower baffle 25 are respectively disposed at the upper and lower ends of the door body 2, which together limit the flow direction of the cooling channel 4, so that the airflow flows from bottom to top through the air inlet 41 and the cooling channel 4, and is discharged from the air outlet 42.

[0047] The door body 2 also includes a first fixing member 26, a second fixing member 27 and a top cover 28. The first fixing member 26 and the second fixing member 27 are respectively engaged with the edges of the outer glass 21 and the inner glass 22. The upper baffle 24 is connected to the first fixing member 26, and the lower baffle 25 is connected to the second fixing member 27. The second fixing member 27 has an opening and is connected to the air inlet 41.

[0048] The top cover 28 is provided with multiple air outlets 281 that are connected to the air outlet 42, so that air can be discharged evenly and quickly, thereby improving heat dissipation efficiency.

[0049] In this application, a sealing element (not shown) is provided between the first fixing member 26 and the second fixing member 27 and the inner glass 22 and the outer glass 21 to prevent airflow from escaping from the left and right sides of the door body 2 and to ensure the direction of airflow.

[0050] like Figure 1 As shown, a cooking device includes a device body 1, which is connected to a door assembly that facilitates heat dissipation. The device body 1 can be a steam oven, oven, or air fryer, or other structures that require heat dissipation through the door assembly, which will not be described in detail here.

[0051] Beneficial effects:

[0052] Without thickening the door body, the heat dissipation area is significantly increased by setting a detour cooling channel inside the door body, which effectively reduces the door body temperature. At the same time, the air inlet is set near the first surface. Since the first surface faces the outside of the equipment, the air cools the first surface first. The temperature of the first surface of the door body is low, which has a good anti-scalding effect and avoids burns to users.

[0053] In this application, unless otherwise expressly 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.

[0054] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A door assembly that facilitates heat dissipation, characterized in that, include: A door body (2) is formed along the thickness direction with a first surface and a second surface, the first surface facing the outside of the equipment when in use, and the second surface facing the inside of the equipment when in use; The door body (2) has a cooling channel (4) with a meandering path inside along the thickness direction. The cooling channel (4) has an air inlet (41) and an air outlet (42). The air inlet (41) is close to the first surface, and the air outlet (42) is close to the second surface.

2. The heat dissipation-facilitating door assembly as described in claim 1, characterized in that, It also includes a duct assembly (3), the air inlet (41) is connected to the external atmosphere of the equipment, and the air outlet (42) is adjacent to and fluidly connected to the duct outlet of the duct assembly (3) so that a low-pressure zone (421) is formed at the air outlet (42).

3. The heat dissipation-facilitating door assembly as described in claim 2, characterized in that, The central axis of the air duct outlet of the air duct assembly is located adjacent to the central axis of the air outlet (42) and arranged at 75-100°.

4. The heat dissipation-facilitating door assembly as described in claim 1, characterized in that, The door (2) includes an outer glass (21), an inner glass (22) arranged sequentially along the thickness direction, and at least one heat-insulating glass (23) located between the outer glass (21) and the inner glass (22). The air inlet (41) is close to the outer glass (21), and the air outlet (42) is close to the inner glass (22). The cooling channel (4) forms a meandering path between the outer glass (21), the heat-insulating glass (23) and the inner glass (22), and the cooling channel (4) is at least partially sealed to allow airflow to flow within the cooling channel (4).

5. The heat dissipation-facilitating door assembly as described in claim 2, characterized in that, The door body (2) includes an outer glass (21), an inner glass (22) arranged sequentially in the thickness direction, and a first heat-insulating glass (231) and a second heat-insulating glass (232) located between the outer glass (21) and the inner glass (22). The first heat-insulating glass (231) and the second heat-insulating glass (232) are arranged alternately so that the outer glass (21), the first heat-insulating glass (231), the second heat-insulating glass (232) and the inner glass (22) form a meandering cooling channel (4), and the airflow flows in a serpentine manner in the cooling channel (4). The air inlet (41) is close to the outer glass (21), and the air outlet (42) is close to the inner glass (22). The air inlet (41) and the air outlet (42) are respectively located at the bottom and top of the cooling channel (4), thereby generating a continuous airflow from bottom to top in the cooling channel (4).

6. The heat dissipation-facilitating door assembly as described in claim 5, characterized in that, The door body (2) also includes an upper baffle (24) and a lower baffle (25). The upper baffle (24) and the lower baffle (25) are respectively disposed at the upper and lower ends of the door body (2) to jointly define the flow direction of the cooling channel (4), so that the airflow flows from bottom to top through the air inlet (41) and the cooling channel (4) and is discharged from the air outlet (42).

7. The heat dissipation-facilitating door assembly as described in claim 6, characterized in that, The door body (2) also includes a first fixing member (26), a second fixing member (27) and a top cover (28). The first fixing member (26) and the second fixing member (27) are respectively engaged with the edges of the outer glass (21) and the inner glass (22). The upper baffle (24) is connected to the first fixing member (26), and the lower baffle (25) is connected to the second fixing member (27). The second fixing member (27) has an opening and is connected to the air inlet (41). The top cover (28) is provided with a plurality of air outlets (281) that are connected to the air outlet (42).

8. The heat dissipation-facilitating door assembly as described in claim 7, characterized in that, A sealing element is provided between the first fixing member (26) and the second fixing member (27) and the inner glass (22) and the outer glass (21).

9. The heat dissipation-facilitating door assembly as described in claim 4, characterized in that, The outer glass (21), the heat-insulating glass (23), and the inner glass (22) are all tempered glass.

10. A cooking device, characterized in that, It includes a device body (1) connected to a heat dissipation-friendly door assembly as described in any one of claims 1-9.

Images