Refrigerator drawer and refrigerator thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-12
AI Technical Summary
When the temperature inside a refrigerator drawer is uneven, hot and humid air from outside can easily enter, causing condensation. Existing windproof structures cannot effectively block this when the drawer is pulled out.
The design incorporates independent first and second air ducts, connected via a first and second air inlet respectively. The damper assembly controls the air duct connection based on the drawer's position. When the drawer is pulled out, the second air outlet forms an air curtain to block hot and humid air. The damper assembly is controlled in conjunction with a position sensor.
有效防止湿热空气进入抽屉内部，避免凝露问题，保持抽屉内部温度均匀性。
Smart Images
Figure CN224230470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator drawer and the refrigerator thereof. Background Technology
[0002] A refrigerator drawer is installed inside the refrigerator and typically consists of a main body and a drawer. The main body is connected to the refrigerator, while the drawer can be pulled out relative to the main body to make it easier for users to access the food stored inside.
[0003] However, because the internal temperature of a refrigerator drawer is low, condensation can easily occur when the internal air temperature is uneven, such as when hot and humid air from outside enters the drawer. Some refrigerator drawers currently have a draft barrier at the opening, but this only blocks outside air when the drawer is closed. When the drawer is pulled out, hot and humid air from outside can still enter. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a refrigerator drawer.
[0005] A refrigerator drawer includes: a body, the body being hollow, the body having a first side with an opening and a second side facing away from the opening; a drawer disposed in the body and movable along the direction of the opening, the drawer having a accommodating cavity for storing food; wherein, at least a first air duct and a second air duct are constructed in the side wall of the body, the first air duct having a first air inlet and a first air outlet, the first air inlet being located on the second side, the first air outlet being located on the inner wall of the body facing the accommodating cavity, the second air duct having a second air inlet and a second air outlet, the second air inlet being located on the second side, the second air outlet being located on the first side, and a damper assembly being disposed on the second side, the damper assembly blocking the first air inlet and the second air inlet, and the damper assembly being configured to open the first air inlet or the second air inlet in response to the position of the drawer.
[0006] With this configuration, both the first and second air ducts have independent air inlets and outlets, forming two independent airflow paths. The damper assembly can open or close the first and second air inlets, thus controlling whether the first or second air duct is connected. When the drawer is pulled out, the second air outlet opens. Since the second air outlet is located on the first side, and the drawer is pulled out from the opening on the first side, the second air outlet faces the direction the drawer is pulled out. The airflow forms an air curtain that extends in the direction the drawer is pulled out, thereby preventing hot and humid air from entering the drawer's internal cavity and avoiding condensation.
[0007] In one embodiment, a position sensor is provided on the inner wall of the body, and the drawer has a first position inside the body and a second position outside the body. The position sensor is capable of acquiring the position of the drawer and is electrically connected to the damper assembly.
[0008] In one embodiment, the damper assembly includes a first damper and a second damper, wherein the first damper is connected to the inner wall of the first air duct and is capable of blocking the first air inlet, and the second damper is connected to the inner wall of the second air duct and is capable of blocking the second air inlet.
[0009] In one embodiment, the first damper is rotatably connected to the inner wall of the first air duct and can circumferentially abut against the inner wall of the first air duct by rotation; the second damper is rotatably connected to the inner wall of the second air duct and can circumferentially abut against the inner wall of the second air duct by rotation.
[0010] In one embodiment, the first air duct is configured as two ducts, which are arranged on both sides of the width direction of the second air duct.
[0011] In one embodiment, the first air duct has a plurality of first air outlets on its side wall facing the accommodating cavity, and the first air outlets are arranged in an array.
[0012] In one embodiment, the second air duct includes a diameter section and an expansion section, the diameter section is connected to the expansion section, the opening on the side of the diameter section away from the expansion section is the second air inlet, the opening on the side of the expansion section away from the diameter section is the second air outlet, and the width of the expansion section is greater than the width of the diameter section.
[0013] In one embodiment, the width of the expansion segment gradually increases along the direction from the second side to the first side.
[0014] In one embodiment, both the first air duct and the second air duct are located at the top of the body, and the height of the second air duct gradually decreases along the direction away from the second side, and the flow area of the second air inlet is larger than the area of the second air outlet.
[0015] This utility model also provides a refrigerator, including the refrigerator drawer described above.
[0016] Compared to existing technologies, this invention features a first and a second air duct, each with independent air inlets and outlets, forming two independent flow paths. The damper assembly can open or close both the first and second air inlets, thus controlling the connection of either the first or second air duct. When the drawer is pulled out, the second air outlet opens. Since the second air outlet is located on the first side, and the drawer is pulled out from the opening on the first side, the second air outlet faces the direction the drawer is pulled out. The airflow forms an air curtain that extends in the direction the drawer is pulled out, thereby preventing hot and humid external air from entering the drawer's internal cavity and avoiding condensation. Attached Figure Description
[0017] Figure 1 A perspective view of one embodiment of the refrigerator drawer provided by this utility model;
[0018] Figure 2 A schematic diagram of the structure of one embodiment of the body provided by this utility model;
[0019] Figure 3 A cross-sectional view of one embodiment of the body provided by this utility model;
[0020] Figure 4 A structural cross-sectional view of one embodiment of the refrigerator drawer provided by this utility model.
[0021] The symbols in the diagram represent the following meanings:
[0022] 100. Refrigerator drawer; 10. Main body; 11. First air duct; 111. First air inlet; 112. First air outlet; 12. Second air duct; 121. Second air inlet; 122. Second air outlet; 123. Diameter section; 124. Expanded diameter section; 13. First side; 14. Second side; 20. Drawer; 21. Receiving cavity; 30. Position sensor. Detailed Implementation
[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0024] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates 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 indicates that the first feature is at a lower horizontal level than the second feature.
[0027] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0028] This utility model provides a refrigerator drawer 100, which forms a horizontal air curtain by opening an air outlet on the first side 13 of the main body 10, thereby preventing hot and humid air from entering the receiving cavity 21 inside the drawer 20 when the drawer 20 is pulled out, so as to achieve the function of preventing condensation.
[0029] Please see Figures 1-4The refrigerator drawer 100 includes a body 10 and a drawer 20. The body 10 is hollow and has a first side 13 with an opening and a second side 14 facing away from the opening. The drawer 20 is disposed in the body 10 and can move along the opening direction. The drawer 20 has a storage cavity 21 for storing food. At least a first air duct 11 and a second air duct 12 are formed in the side wall of the body 10. The first air duct 11 has a first air inlet 111 and a first air outlet 112. The first air inlet 111 is open... Located on the second side 14, the first air outlet 112 is opened on the inner wall of the body 10 facing the receiving cavity 21. The second air duct 12 has a second air inlet 121 and a second air outlet 122. The second air inlet 121 is located on the second side 14, and the second air outlet 122 is located on the first side 13. The second side 14 is also provided with a damper assembly, which blocks the first air inlet 111 and the second air inlet 121. The damper assembly is configured to open the first air inlet 111 or the second air inlet 121 in response to the position of the drawer 20.
[0030] Thus, both the first air duct 11 and the second air duct 12 have independent air inlets and outlets, forming two independent flow paths. The damper assembly can open or close the first air inlet 111 and the second air inlet 121, so the damper assembly can control the connection of the first air duct 11 or the second air duct 12. When the drawer 20 is pulled out, the second air outlet 122 opens. Since the second air outlet 122 is located on the first side 13, and the drawer 20 is pulled out from the opening on the first side 13, that is, the second air outlet 122 faces the direction in which the drawer 20 is pulled out. Its airflow forms an air curtain, which extends in the direction in which the drawer 20 is pulled out, thereby blocking the entry of external humid and hot air into the receiving cavity 21 inside the drawer 20, thus avoiding the problem of condensation.
[0031] Furthermore, a position sensor 30 is provided on the inner wall of the main body 10. The drawer 20 has a first position inside the main body 10 and a second position outside the main body 10. The position sensor 30 can obtain the position of the drawer 20 and is electrically connected to the damper assembly. Thus, the position sensor 30 determines whether to open the first air duct 11 or the second air duct 12 by obtaining the position of the drawer 20. When the drawer 20 is in the first position, the first air duct 11 is opened, and the cold air in the first air duct 11 enters the receiving cavity 21 through the first air outlet 112 to maintain the low temperature inside the drawer 20. When the drawer 20 is pulled out to the second position, the first air duct 11 is closed and the second air duct 12 is opened, thereby forming an air curtain to prevent the entry of hot and humid air from outside.
[0032] In this embodiment, the position sensor 30 is set as an infrared sensor, which has a fast response speed and stable performance.
[0033] Specifically, an infrared sensor is installed on the inner wall of the main body 10 near the second side 14 to achieve a more direct and faster acquisition of the position of the drawer 20.
[0034] Preferably, in this embodiment, when the distance between the drawer 20 and the infrared sensor is less than or equal to 5mm, it is determined that the drawer 20 is fully pushed in and located in the first position.
[0035] The damper assembly includes a first damper and a second damper. The first damper is connected to the inner wall of the first air duct 11 and can block the first air inlet 111. The second damper is connected to the inner wall of the second air duct 12 and can block the second air inlet 121. Thus, the first damper and the second damper can respectively close the first air inlet 111 and the second air inlet 121.
[0036] Understandably, in other embodiments, the damper assembly may also be configured with only one damper, and the first air duct 11 or the second air duct 12 is connected by the movement of the damper between the first air inlet 111 and the second air inlet 121, rather than being limited to the above-described configuration of two dampers controlled separately. When the number of air inlets on the body 10 is further increased, the number of dampers is also preferably increased to achieve stable control.
[0037] The first damper is rotatably connected to the inner wall of the first air duct 11 and can circumferentially abut against the inner wall of the first air duct 11 through rotation. The second damper is rotatably connected to the inner wall of the second air duct 12 and can circumferentially abut against the inner wall of the second air duct 12 through rotation. In this way, the air ducts can be opened or closed by rotation, which is simple in structure and low in cost.
[0038] Preferably, in this embodiment, the rotatable angles of the first damper and the second damper are both 0-90°.
[0039] Furthermore, the first air duct 11 is configured as two ducts, and is arranged on both sides of the width direction of the second air duct 12. In this way, the two first air ducts 11 can blow cold air from both sides of the drawer 20 into the accommodating cavity 21 through the first air inlet 111, so the cooling capacity inside the accommodating cavity 21 will be more uniform, avoiding the problem of one side being cold and the other side being hot when only one side is cold.
[0040] Multiple first air outlets 112 are provided on the side wall of the first air duct 11 facing the receiving cavity 21, and the first air outlets 112 are arranged in an array. In this way, the entry of cold air can be more uniform.
[0041] Specifically, the diameter of the first air outlet 112 is set to 0.5-2mm, the spacing between the holes is 5-10mm, and the opening rate is ≥30% to ensure the uniformity of the air outlet.
[0042] Furthermore, the second air duct 12 includes a diameter section 123 and an expansion section 124. The diameter section 123 and the expansion section 124 are connected. The opening on the side of the diameter section 123 away from the expansion section 124 is the second air inlet 121, and the opening on the side of the expansion section 124 away from the diameter section 123 is the second air outlet 122. The width of the expansion section 124 is greater than the width of the diameter section 123. In this way, the cold air flowing out from the expansion section 124 can form a wider air curtain, thereby further preventing hot and humid air from entering the accommodating cavity 21.
[0043] Preferably, the opening on the side of the enlarged section 124 away from the diameter section 123, namely the second air outlet 122, extends horizontally from one end of the body 10 to the other end to completely cover the space above the drawer 20, thereby preventing hot and humid air from entering the accommodating cavity 21.
[0044] Along the direction from the second side 14 to the first side 13, the width of the expansion section 124 gradually increases. This ensures a smooth transition in the flow path of the cold air, preventing turbulence at the outlet and maintaining the airflow velocity, thus making the air curtain more stable. Preferably, in this embodiment, the airflow velocity of the cold air is set to 0.3-0.5 m / s to form a stable laminar flow; that is, the fan blowing the cold air needs to output an airflow at the aforementioned velocity.
[0045] Both the first air duct 11 and the second air duct 12 are located at the top of the main body 10. Along the direction away from the second side 14, the height of the second air duct 12 gradually decreases, and the flow area of the second air inlet 121 is larger than the area of the second air outlet 122. Thus, the cross-sectional shape of the second air duct 12 along the direction from the second side 14 to the first side 13 is trapezoidal, and its height decreases as it approaches the air outlet. Therefore, the flow area of the second air inlet 121 is larger than the area of the second air outlet 122. With the intake air volume exceeding the exhaust air volume, a high-speed airflow is naturally formed at the second air outlet 122, thereby ensuring the strength of the air curtain.
[0046] This utility model also provides a refrigerator, including the refrigerator drawer 100 as described above.
[0047] Compared to existing technologies, this invention features a first air duct 11 and a second air duct 12, each with independent air inlets and outlets, forming two independent flow paths. The damper assembly can open or close the first air inlet 111 and the second air inlet 121, thus controlling the connection of either the first air duct 11 or the second air duct 12. When the drawer 20 is pulled out, the second air outlet 122 opens. Since the second air outlet 122 is located on the first side 13, and the drawer 20 is pulled out from the opening on the first side 13, the second air outlet 122 faces the direction the drawer 20 is pulled out. The airflow forms an air curtain that extends towards the direction the drawer 20 is pulled out, thereby preventing external humid and hot air from entering the internal cavity 21 of the drawer 20 and avoiding condensation.
[0048] 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.
[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, 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 refrigerator drawer, characterized in that, include: The body (10) is hollow and has a first side (13) with an opening and a second side (14) facing away from the opening. A drawer (20) is disposed in the body (10) and is movable along the opening direction. The drawer (20) has a accommodating cavity (21) for storing food. The body (10) has at least a first air duct (11) and a second air duct (12) in its side wall. The first air duct (11) has a first air inlet (111) and a first air outlet (112). The first air inlet (111) is located on the second side (14), and the first air outlet (112) is located on the inner wall of the body (10) facing the receiving cavity (21). The second air duct (12) has a second air inlet (121) and a second air outlet (122). The second air inlet (121) is located on the second side (14), and the second air outlet (122) is located on the first side (13). The second side (14) is also provided with a damper assembly, which blocks the first air inlet (111) and the second air inlet (121). The damper assembly is configured to open the first air inlet (111) or the second air inlet (121) in response to the position of the drawer (20).
2. The refrigerator drawer according to claim 1, characterized in that, A position sensor (30) is provided on the inner wall of the body (10). The drawer (20) has a first position inside the body (10) and a second position outside the body (10). The position sensor (30) can obtain the position of the drawer (20) and is electrically connected to the damper assembly.
3. The refrigerator drawer according to claim 1, characterized in that, The damper assembly includes a first damper and a second damper. The first damper is connected to the inner wall of the first air duct (11) and can block the first air inlet (111). The second damper is connected to the inner wall of the second air duct (12) and can block the second air inlet (121).
4. The refrigerator drawer according to claim 3, characterized in that, The first damper is rotatably connected to the inner wall of the first air duct (11) and can circumferentially abut against the inner wall of the first air duct (11) by rotation. The second damper is rotatably connected to the inner wall of the second air duct (12) and can circumferentially abut against the inner wall of the second air duct (12) by rotation.
5. The refrigerator drawer according to claim 1, characterized in that, The first air duct (11) is configured as two, and is respectively arranged on both sides of the width direction of the second air duct (12).
6. The refrigerator drawer according to claim 1, characterized in that, The first air duct (11) has multiple first air outlets (112) on its side wall facing the accommodating cavity (21), and the first air outlets (112) are arranged in an array.
7. The refrigerator drawer according to claim 1, characterized in that, The second air duct (12) includes a diameter section (123) and an expansion section (124). The diameter section (123) is connected to the expansion section (124). The opening of the diameter section (123) away from the expansion section (124) is the second air inlet (121). The opening of the expansion section (124) away from the diameter section (123) is the second air outlet (122). The width of the expansion section (124) is greater than the width of the diameter section (123).
8. The refrigerator drawer according to claim 7, characterized in that, The width of the expansion section (124) gradually increases along the direction from the second side (14) to the first side (13).
9. The refrigerator drawer according to claim 1, characterized in that, The first air duct (11) and the second air duct (12) are both located on the top of the body (10), and along the direction away from the second side (14), the height of the second air duct (12) gradually decreases, and the flow area of the second air inlet (121) is greater than the area of the second air outlet (122).
10. A refrigerator, characterized in that, Includes the refrigerator drawer as described in any one of claims 1-9.