Moisturizing drawer and refrigerator

Abstract

The embodiment of the utility model provides a moisturizing drawer and a refrigerator, the moisturizing drawer comprises a drawer body, the drawer body is in sliding connection with a variable temperature chamber, and the top of the drawer body is provided with a first opening; the tray body covers the first opening, the tray body is movably connected with the drawer body, the tray body is movably connected with the temperature changing cavity, a second opening is formed in the top of the tray body, part of the bottom wall of the tray body is located in the drawer body, and part of the bottom wall of the tray body is lower than the first opening; the moisture permeable structure is arranged between the tray body and the drawer body, and air in the drawer body and air outside the drawer body flow through the moisture permeable structure. According to the technical scheme, the tray body on the upper portion is designed in a sinking mode, the moisture permeable structure is combined, the sealing performance of the drawer body is improved, and the problem of water loss of a traditional large-volume drawer is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigerator, specifically, relates to a moisture preservation drawer and refrigerator. BACKGROUND

[0002] At present, people's demand for the volume of refrigerator is increasing, and large-capacity refrigerators are usually equipped with large-capacity drawers to facilitate user's use, however, large-capacity drawers will reduce the moisture retention effect, and the food materials in the drawer will lose moisture during the refrigeration of the refrigerator, in the related technology, a cover plate is arranged above the drawer, and a moisture-permeable film is arranged between the front side of the drawer and the cover plate to improve the moisture retention effect, however, in actual use, the gap between the cover plate and the drawer is still large, and the moisture retention effect is poor. SUMMARY

[0003] The utility model aims at least solve the technical problem of poor moisture retention effect of the moisture retention drawer in the prior art or related technology.

[0004] Therefore, the embodiment of the utility model provides a moisture retention drawer.

[0005] Another embodiment of the utility model provides a refrigerator.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a moisture retention drawer for a refrigerator, the refrigerator comprising a temperature-changing chamber, the moisture retention drawer is arranged in the temperature-changing chamber, and the moisture retention drawer comprises: a drawer body, which is slidably connected with the temperature-changing chamber, the top of the drawer body has a first opening; a tray body, which is arranged on the first opening, the tray body is movably connected with the drawer body and movably connected with the temperature-changing chamber, the top of the tray body is provided with a second opening, and part of the bottom wall of the tray body is arranged in the drawer body and lower than the first opening; and a moisture-permeable structure, which is arranged between the tray body and the drawer body, the air in the drawer body and the air outside the drawer body can flow through the moisture-permeable structure.

[0007] The moisture-retaining drawer according to the utility model is used for a temperature-variable chamber in a refrigerator, the structure of the drawer body and the tray body is optimized, the tray body at the upper part is designed to be sunken, and the moisture-retaining structure is combined, so that the sealing property of the drawer body is improved, and the moisture loss problem existing in a traditional large-capacity drawer is solved. Specifically, the moisture-retaining drawer comprises a drawer body, a tray body and a moisture-permeable structure, the drawer body is located in the temperature-variable chamber and is in sliding connection with the temperature-variable chamber and can be in sliding connection with the inner wall of the temperature-variable chamber, the drawer body serves as a main storage space, carries food materials and provides a relatively sealed storage environment. The drawer body has a first opening at the top, so as to facilitate the access to food, and forms a combined structure with the tray body above. The tray body is arranged on the first opening of the drawer body and is in movable connection with the drawer body and the temperature-variable chamber, the tray body serves as an upper partition, improves the space utilization rate, and enables the user to separately store different types of food materials, the tray body is provided with a second opening at the top and has the function of storing food materials, and meets the requirement of storing food with low humidity requirement. It should be emphasized that part of the bottom wall of the tray body is located in the drawer body and is lower than the first opening, so that this part of structure is sunken into the drawer body, the gap between the upper and lower drawers is reduced, better sealing property is formed, and moisture loss is reduced. Further, the gap between the drawer body and the tray body can be reduced by using the sunken structure, for example, 2mm left and right and 3.5mm front and back, so that ideal moisture-retaining effect is achieved.

[0008] In some technical solutions, the first opening is in a stepped shape, and in the height direction of the drawer body, part of the bottom wall of the tray body is lower than the horizontal plane corresponding to the highest point of the first opening.

[0009] In the technical solution, by limiting the first opening to be in a stepped shape, the stepped design changes the traditional planar opening, and the sealing property between the tray and the drawer is improved. In addition, by limiting part of the bottom wall of the tray body to be lower than the highest plane in the first opening, i.e. the horizontal plane corresponding to the highest point, i.e. part of the bottom wall of the tray body is sunken to be lower than the horizontal plane of the highest point, the up-down gap between the tray and the drawer body is reduced, so that moisture loss from the back, sides and bottom is reduced. Through the above limitation, a relatively narrow up-down gap can significantly improve the moisture-retaining performance on the basis of retaining moderate air exchange.

[0010] In the technical solution, the stepped first opening is located at the top of the drawer body and forms multiple height differences around the tray bottom wall, increases the contact area between the tray and the drawer, and reduces moisture loss.

[0011] In some technical solutions, the first opening comprises at least two stepped surfaces with different heights, and part of the bottom wall of the tray body is lower than the highest one of the multiple stepped surfaces.

[0012] In the technical solution, the first opening includes two or more stepped surfaces, and there are at least two kinds of heights of the stepped surfaces. By limiting the part of the bottom wall of the tray body to be lower than the highest one of the plurality of stepped surfaces, the sealing property of the lower drawer can be enhanced. The height difference of the plurality of stepped surfaces can further reduce the gap between the tray and the drawer compared with a single stepped surface structure, thereby reducing the loss of moisture from the side and rear.

[0013] In addition, the stepped surfaces with different heights can provide closer contact in various directions, thereby improving the moisture retention effect of the drawer. Meanwhile, the highest one of the stepped surfaces forms a more airtight barrier, which can be arranged at the front end or the left and right sides, thereby enhancing the moisture retention in the area where the moisture is prone to be lost.

[0014] In some technical solutions, optionally, the first slide rail is arranged at the top of the drawer body, and one end of the first slide rail is provided with a recess-shaped limiting slot. The first pulley is arranged at the bottom of the tray body. The depth of the limiting slot is greater than the radius of the first pulley. When the first pulley is in the limiting slot, the drawer body moves to drive the tray body to move. When the first pulley moves out of the limiting slot, the tray body can move relative to the drawer body under the force.

[0015] In the technical solution, by limiting the first slide rail and the first pulley, the movement of the tray body relative to the drawer body can be realized. Specifically, the first slide rail is arranged at the top of the drawer body, and one end of the first slide rail is provided with a recess-shaped limiting slot. The tray body is provided with a first pulley at the bottom, which can slide in the first slide rail. By limiting the depth of the limiting slot to be greater than the radius of the first pulley, when the first pulley is in the limiting slot, a limiting effect is achieved. When the first pulley is clamped into the limiting slot, the drawer and the tray slide together. When the drawer is pulled out, the tray and the drawer move as a whole, reducing the user operation steps, and being suitable for ordinary use or overall cleaning scenarios.

[0016] After the pulley moves out of the limiting slot, the tray can slide independently or be partially tilted to open. It is not necessary to pull out the drawer completely to check or use part of the food, thereby improving the use flexibility and being more suitable for the moisture retention scenarios of frequent opening and closing and reducing cold air leakage.

[0017] By limiting the depth of the limiting slot to be greater than the radius of the pulley, a recessed clamping is formed to ensure that the pulley will not be accidentally ejected, avoid the tray from shaking or slipping during pulling, and provide a more stable traction force. Even in a full load or inclined state, the linkage of the drawer and the tray can be ensured to be smooth.

[0018] In some technical solutions, optionally, the first slide rail extends along the sliding direction of the drawer body relative to the variable-temperature chamber, and the limiting slot is arranged at one end of the first slide rail facing the connecting door body of the drawer body.

[0019] In the technical solution, by limiting the extension of the first sliding rail along the sliding direction of the drawer body relative to the temperature changing chamber, the first sliding rail extends along the drawer sliding direction, which is consistent with the moving direction of the drawer, and the sliding rail guiding effect is better, and unnecessary horizontal force or vertical force is reduced. In addition, the limiting groove is arranged at one end of the sliding rail close to the connecting door body of the drawer body, and the limiting groove can be engaged with the pulley when the drawer is just pulled out, so that the tray and the drawer form an integral linkage, and the shaking and collision in the initial sliding stage are reduced.

[0020] Of course, it is more convenient to switch between the whole sliding mode and the independent sliding mode. Specifically, after the pulley leaves the limiting groove, the tray can be partially slid out by slightly continuing to pull the drawer, which reduces the user's force and improves the use convenience. By arranging the limiting groove at one end close to the door body, the user can easily observe and adjust, and it is easy to determine whether the pulley is completely engaged, thereby reducing the probability of incorrect connection between the tray and the drawer.

[0021] In some technical solutions, optionally, when the first pulley is in the limiting groove, the gap between the drawer body and the tray body is 1.5mm-4mm.

[0022] In the technical solution, when the tray body is stationary relative to the drawer body, i.e. the first pulley is in the limiting groove, by limiting the gap between the drawer body and the tray body to be 1.5mm-4mm, a smaller gap can be used to maintain the sealing property, and prevent the failure or air leakage caused by too large gap. If the gap is too large, it may cause moisture leakage, affecting the moisturizing function. By accurately designing the gap, it can be ensured that the moisture is not easily leaked, and the suitable humidity in the temperature changing chamber is maintained.

[0023] In the present solution, the gap between the drawer body and the tray body is the gap between them in the horizontal plane.

[0024] Further, the four sides specifically include the front side, the left and right sides, and the rear side, the gap of the front side can be limited to 3mm, the left and right gaps can be limited to 2mm, and the gap of the rear side can be limited to 3.5mm.

[0025] It can be understood that in the initial state (when the drawer is completely closed), the gap between the drawer body and the tray body is kept within the range of 1.5mm-4mm, which ensures the sealing property and reduces the loss of moisture or cold air, and in addition, the sliding stability is high and there is no excessive friction or instability due to too large gap.

[0026] In some technical solutions, optionally, it further comprises: a second pulley arranged on the tray body, the second pulley is used to cooperate with a second sliding rail of the temperature changing chamber to make the tray body slide relative to the temperature changing chamber; wherein, in the extension direction of the second sliding rail, the first pulley and the second pulley are arranged at two ends of the tray body.

[0027] In the technical solution, the second pulley and the second sliding rail are arranged to realize the sliding of the tray body relative to the temperature changing chamber, and the stability of the tray body is enhanced so that the tray body can slide smoothly in the temperature changing chamber. Specifically, the second pulley is arranged on the tray body to cooperate with the second sliding rail of the temperature changing chamber to make the tray body slide relative to the temperature changing chamber. The second pulley and the second sliding rail jointly provide additional support to prevent the tray body from deviating or being unstable during sliding.

[0028] By arranging the first pulley and the second pulley at both ends of the tray body in the extension direction of the second sliding rail, the stress on the tray body during sliding can be evenly distributed, which can avoid deformation or sliding difficulty of the tray body caused by uneven stress during sliding.

[0029] In some technical solutions, the drawer body includes a shell, a storage cavity is arranged in the shell, and a connecting door body is arranged on the front side of the shell.

[0030] In the technical solution, the drawer body includes a shell, a connecting door body and a storage cavity. The shell provides a solid support as an external structure of the drawer body. The shell is durable and can withstand frequent use, and ensures that the internal storage cavity does not deform or damage during long-term use. The storage cavity provides additional storage space, so that the drawer body not only serves as a structure for moving and supporting the tray, but also can be used to store items such as food materials that need to be kept at a certain humidity.

[0031] The connecting door body is mainly used to connect the drawer body with the door body of the refrigerator, and provides a convenient opening and closing method. During use, the user can open or close the drawer by sliding to take or place items. The arrangement of the connecting door body enables the drawer to effectively cooperate with the door body of the refrigerator, ensures the sealing performance of the door body of the refrigerator, and avoids excessive gap between the door body and the cavity of the refrigerator when opening and closing the drawer, which affects the overall refrigeration effect.

[0032] In some technical solutions, the bottom wall of the tray body is not parallel to the plane where the second opening is located, and the vertical distance from the side of the bottom wall facing the connecting door body to the plane where the second opening is located is less than the vertical distance from the side of the bottom wall away from the connecting door body to the plane where the second opening is located.

[0033] In the technical solution, by limiting the bottom wall of the tray body corresponding to the wall surface and the plane where the second opening is located, and satisfying that the vertical distance from the side of the bottom wall facing the connecting door body to the plane where the second opening is located is less than the vertical distance from the side of the bottom wall away from the connecting door body to the plane where the second opening is located, an inclined design can be realized, the bottom wall and the second opening are not parallel to form an inclination angle, so that the moisture or condensed water located in the tray can flow or gather naturally towards the side away from the connecting door body.

[0034] In some technical solutions, optionally, it further comprises: raised ribs, which are arranged on the bottom wall of the tray body, and at least part of the raised ribs are located in the drawer body.

[0035] In the technical solution, by arranging raised ribs on the bottom wall of the tray body, and in the case of assembling the tray body to the drawer body, part or all of the raised ribs are located in the drawer body, when the tray body is a special-shaped structure, i.e. the bottom part position has a downward protruding raised rib, the raised rib is effectively lowered to the inside of the drawer body, thereby reducing the local position of the tray bottom wall, thereby expanding the storage space of the lower drawer. It can be understood that this design allows to maximize the storage volume in a limited height space and improve the space utilization efficiency.

[0036] In addition, the raised ribs form a close contact or limiting fit with the inner wall of the drawer body, thereby reducing the lateral or downward gap after the tray is combined with the drawer, and the sealing effect helps to isolate air circulation, thereby controlling humidity and preventing the influence of the external environment on the stored items in the drawer. In particular, in a humidifying drawer, good sealing can delay moisture loss and prolong the preservation period of perishable items such as fruits and vegetables.

[0037] In some technical solutions, optionally, it further comprises: a door structure connected with the connecting door body, and in the height direction, the highest point of the tray body is less than the highest point of the door structure, and the lowest point of the drawer body is greater than the lowest point of the door structure.

[0038] In this scheme, the door structure serves as the outer surface of the refrigerator, and by being fixedly connected with the connecting door body, it forms a sealing and opening and closing surface at the front end of the refrigerator, which can isolate the external environment and provide heat preservation and humidification functions. Among them, the highest point of the tray body is less than the highest point of the door structure, i.e. lower than the door structure in the height direction, thereby fully utilizing the space in the cavity of the refrigerator and avoiding the tray from colliding with the inner side of the door body. In addition, the lowest point of the drawer body is greater than the lowest point of the door structure, i.e. higher than the bottom edge of the door structure in the height direction, thereby avoiding the drawer from sagging or contacting the inner wall of the door body of the refrigerator and protecting the structural integrity.

[0039] Another embodiment of the utility model provides a refrigerator, include: box, be equipped with temperature changing chamber in the box, the moisture drawer of any one technical scheme, with temperature changing chamber sliding connection, air duct structure, be located temperature changing chamber's back, and air duct structure on be equipped with first air port and second air port, first air port is towards drawer body set, second air port is towards tray body set.

[0040] According to the refrigerator provided by the application, the refrigerator comprises a box body, an air duct structure and a moisture drawer, in the present application, a temperature changing chamber is arranged in the box body, and the moisture drawer is slidably connected with the temperature changing chamber, so that the sliding of the moisture drawer is realized, and on this basis, the humidity can be accurately adjusted through the double air port design, the problems of water vapor accumulation in the bottom of the traditional moisture drawer, the immersion and deterioration of food materials, the surface moisture caused by the condensation and dripping of water on the upper layer and the shortening of the preservation period are solved.

[0041] It should be noted that, since the refrigerator comprises any one of the above moisture drawers, the technical effects of any one of the above moisture drawers are achieved, and details are not repeated here.

[0042] The additional aspects and advantages of the utility model will become apparent from the following description, or be appreciated through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 A structure schematic view of a moisture drawer according to one embodiment of the utility model is shown;

[0044] Figure 2 A structure schematic view of a moisture drawer according to one embodiment of the utility model is shown;

[0045] Figure 3 A structure schematic view of a moisture drawer according to one embodiment of the utility model is shown;

[0046] Figure 4 A structure schematic view of a drawer body according to one embodiment of the utility model is shown;

[0047] Figure 5 A structure schematic view of a moisture drawer according to one embodiment of the utility model is shown;

[0048] Figure 6 A structure schematic view of a refrigerator according to one embodiment of the utility model is shown;

[0049] Figure 7 A structure schematic view of a refrigerator of the related art is shown.

[0050] Wherein, Figures 1 to 7 The correspondence between the reference signs and the component names in the accompanying drawings is as follows:

[0051] 100: Moisture-retaining drawer; 102: Drawer body; 1022: First opening; 1024: Stepped surface; 1032: Shell; 1034: Storage cavity; 1036: Connecting door; 104: Tray body; 1042: Second opening; 106: Moisture-permeable structure; 1082: First slide rail; 1084: Limiting groove; 1086: First pulley; 1102: Second slide rail; 1104: Second pulley; 112: Heightening rib; 114: Door structure;

[0052] 200: Refrigerator; 201: Cabinet; 202: Variable temperature chamber; 204: Air duct structure; 2042: First air vent; 2044: Second air vent;

[0053] 103': First container; 104': Second container. Detailed Implementation

[0054] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0055] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0056] The following reference Figures 1 to 6 Some embodiments according to the present invention are described.

[0057] like Figure 1 and Figure 2 As shown, this embodiment provides a humidifying drawer 100 for use in the variable temperature chamber 202 within a refrigerator 200. By optimizing the structure of the drawer body 102 and the tray body 104, the upper part of the tray body 104 is designed to be recessed. Combined with the moisture-permeable structure 106, the sealing performance of the drawer body 102 is improved, solving the moisture loss problem present in traditional large-capacity drawers. Specifically, the humidifying drawer 100 includes a drawer body 102, a tray body 104, and a moisture-permeable structure 106. The drawer body 102 is located within the variable temperature chamber 202 and is slidably connected to the variable temperature chamber 202, specifically, it can be slidably connected to the inner wall of the variable temperature chamber 202. The drawer body 102 serves as the main storage space, holding food and providing a relatively sealed storage environment. Regarding the drawer body 102, as... Figure 4As shown, the top of the drawer body 102 has a first opening 1022 to facilitate access to food, and forms a combined structure with the tray body 104 above. By covering the tray body 104 on the first opening 1022 of the drawer body 102, the tray body 104 is movably connected to the drawer body 102 and the variable temperature chamber 202, serving as an upper partition to improve space utilization, allowing users to store different types of food materials separately. The top of the tray body is provided with a second opening 1042, which allows the tray body to also store food materials, meeting the needs of storing food with lower humidity requirements. It should be emphasized that part of the bottom wall of the tray body 104 is located inside the drawer body 102 and is lower than the first opening 1022, so that this part of the structure is sunken into the drawer body 102, reducing the gap between the upper and lower drawers, and forming better sealing to reduce moisture loss. Further, the sunken structure can reduce the gap between the drawer body 102 and the tray body 104, for example, 2mm left and right, and 3.5mm front and back, thereby achieving the desired moisture retention effect.

[0058] It should be noted that by providing a moisture-permeable structure 106 between the tray body 104 and the drawer body 102, air circulation is allowed, preventing excessive humidity caused by too tight sealing, thereby achieving moisture balance. Under the action of the moisture-permeable structure 106, only an appropriate amount of moisture exchange is allowed, preventing rapid loss of water, and improving the freshness of stored food materials.

[0059] In summary, the present scheme optimizes the gap design between the drawer and the tray, significantly reducing moisture loss from the rear and sides, and the moisture-permeable structure 106 allows moderate air circulation to avoid excessive humidity or condensation caused by complete sealing, maintaining an ideal humidity environment.

[0060] Further, the special-shaped tray design increases the volume of the lower drawer, while optimizing the gap between the edge and the bottom wall to ensure sealing effect and prolong the freshness of stored food materials.

[0061] In some embodiments, the first opening 1022 is optionally stepped, which changes the traditional flat opening and increases the sealing between the tray and the drawer. In addition, by limiting the height of the bottom wall of part of the tray body 104 to be lower than the highest plane in the first opening 1022, i.e., the highest point corresponds to the horizontal plane, i.e., part of the bottom wall of the tray body 104 is sunken below the highest point horizontal plane, the up-down gap between the tray and the drawer body 102 is reduced, thereby reducing moisture loss from the rear, sides and bottom. Through the above limitation, a narrower up-down gap can be achieved, which significantly improves the moisture retention performance while retaining moderate air exchange.

[0062] In the present solution, the stepped first opening 1022 is located on the top of the drawer body 102 and forms multiple height differences around the bottom wall of the tray, increasing the contact area of the tray and the drawer and reducing the loss of moisture.

[0063] Specifically, in the initial state (when closed), the part of the bottom wall of the tray body 104 sinks into the drawer body 102, forming a surrounding upper and lower closed structure with the stepped first opening 1022. The small gap of 2mm left and right and 3.5mm front and back effectively locks the moisture, preventing the loss of moisture from the side.

[0064] When pulling out (during the movement), at the initial stage of the movement of the tray body 104, the roller structure moves upward first to avoid the contact of the bottom wall with the drawer slide rail. When sliding horizontally to the middle, the gap between the upper and lower parts increases from 3.5mm to 9.5mm. This gap change reduces the resistance during the movement of the tray and improves the smoothness of pulling out, which is not affected even if the tray is under load.

[0065] In some embodiments, the first opening 1022 can optionally include two or more stepped surfaces 1024, and the stepped surfaces 1024 have at least two heights, as shown in Figure 3 As shown, there are two stepped surfaces 1024. By limiting the part of the bottom wall of the tray body 104 to be lower than the highest one of the multiple stepped surfaces 1024, the sealing of the lower drawer can be enhanced. The height difference of the multiple stepped surfaces 1024 can further reduce the gap between the tray and the drawer compared to a single stepped structure, thereby reducing the loss of moisture from the side and the rear.

[0066] In addition, the stepped surfaces 1024 of different heights can provide tighter contact in various directions, improving the moisture retention effect of the drawer. At the same time, the highest one of the stepped surfaces 1024 forms a more stringent barrier, which can be specifically provided at the front end or the left and right sides, thereby strengthening the moisture retention in the area where the moisture is prone to lose.

[0067] Specifically, in the static state (when closed), the part of the bottom wall of the tray body 104 sinks below the highest stepped surface 1024, as shown in Figure 3 The highest stepped surface 1024 forms a relatively sealed structure around the periphery, and the highest stepped surface 1024 provides higher sealing on the front side, reducing the escape of moisture from the front and the sides.

[0068] When the drawer body and the tray body are pulled out together, as shown in Figure 2

[0069] At the initial stage of pulling out, as shown in Figure 3 ​As shown, the front rollers of the tray slide upwards first, gradually increasing the height of the tray and moving it away from the highest step surface 1024, reducing friction and preventing the drawer from being compressed by the weight. When it slides to the middle, the gap between the bottom wall of the tray and the step surface 1024 increases from 3mm to 9.5mm, improving the smoothness of the slide and making it easier for the user to pull it out.

[0070] In some embodiments, optionally, such as Figure 3 As shown, by restricting the first slide rail 1082 and the first pulley 1086, the tray body 104 can move relative to the drawer body 102. Specifically, the first slide rail 1082 is located at the top of the drawer body 102, and one end of it has a recessed limiting groove 1084. The bottom of the tray body 104 is provided with the first pulley 1086, which can slide within the first slide rail 1082. By restricting the depth of the limiting groove 1084 to be greater than the radius of the first pulley 1086, when the first pulley 1086 is in the limiting groove 1084, it has a limiting effect. When the first pulley 1086 is engaged in the limiting groove 1084, the drawer and the tray slide in conjunction. When the drawer is pulled out, the tray and the drawer move as a whole, reducing the number of user operation steps and making it suitable for ordinary retrieval or overall cleaning scenarios.

[0071] After the pulley leaves the limit groove 1084, the tray can slide independently or be partially tilted to open, allowing you to check or take out some food without having to pull the drawer out completely, improving the flexibility of use and making it more suitable for humidification scenarios that require frequent opening and closing and reduce the leakage of cold air.

[0072] By limiting the depth of the 1084 slot to be greater than the radius of the pulley, a recessed locking position is formed to ensure that the pulley will not pop out accidentally, preventing the tray from shaking or slipping when pulled out, providing a more stable traction force, and ensuring smooth linkage between the two even when fully loaded or tilted.

[0073] In addition, the deep grooves prevent the pulleys from wobbling excessively within the track, reducing frictional noise and vibration generated when the refrigerator 200 is running or opening and closing.

[0074] When a large amount or large items of food need to be taken out, the tray slides out with the drawer, providing full visibility and access space. After the rollers move out of the limit slot 1084, the tray can slide or tilt to open, which is suitable for taking out some items, reducing the loss of cold air and maintaining stable internal temperature and humidity.

[0075] Furthermore, the pulley, slide rail, and limiting groove 1084 form a three-point stable support. The slide rail provides guidance and support, the limiting groove 1084 provides linkage and anti-slip, and the pulley is distributed at a low center of gravity at the bottom, reducing the risk of pallet tipping. Even if part of it slides out when fully loaded, the pallet is not easy to tilt or fall.

[0076] In some embodiments, optionally, the first slide rail 1082 extends along a sliding direction of the drawer body 102 relative to the temperature-variable chamber 202, and the first slide rail 1082 extends along the drawer sliding direction in consistent with the drawer moving direction, so that the slide rail has a better guiding effect and reduces unnecessary horizontal force or vertical force. In addition, the limiting slot 1084 is arranged at one end of the slide rail close to the door body of the drawer body, so that the limiting slot 1084 can be clamped with the pulley when the drawer is just pulled out, and the tray and the drawer form an integral linkage, thereby reducing shaking and collision in the initial sliding stage.

[0077] Of course, it is more convenient to switch between the integral sliding mode and the independent sliding mode. Specifically, when the pulley is out of the limiting slot 1084, the tray can be partially slid out by slightly continuing to pull the drawer, thereby reducing the force of the user and improving the convenience of use. By arranging the limiting slot 1084 at one end close to the door body, the user can easily observe and adjust, and can easily determine whether the pulley is completely clamped, thereby reducing the probability of incorrect connection between the tray and the drawer.

[0078] In some embodiments, optionally, when the tray body 104 is stationary relative to the drawer body 102, i.e., the first pulley 1086 is in the limiting slot 1084, the gap between the drawer body 102 and the tray body 104 is limited to 1.5 mm to 4 mm, so that a smaller gap can be used to maintain the sealing property, and prevent failure or air leakage caused by a too large gap. If the gap is too large, moisture leakage may occur, which affects the moisturizing function. By accurately designing the gap, it can be ensured that the moisture is not easily leaked, and the suitable humidity in the temperature-variable chamber 202 can be maintained.

[0079] In this scheme, the gap between the drawer body 102 and the tray body 104 is the gap between the two in the horizontal plane.

[0080] Further, the four sides of the two sides specifically include a front side, left and right sides, and a rear side. The gap of the front side can be limited to 3 mm, the gap of the left and right sides can be limited to 2 mm, and the gap of the rear side can be limited to 3.5 mm.

[0081] It can be understood that, in the initial state (when the drawer is completely closed), the gap between the drawer body 102 and the tray body 104 is maintained within the range of 1.5 mm to 4 mm, so that the sealing property is ensured, and moisture or cold air loss is reduced. In addition, the sliding stability is high, and there is no excessive friction or instability caused by a too large gap.

[0082] In some embodiments, the second pulley 1104 is arranged to cooperate with the second slide rail 1102 to facilitate the sliding of the tray body 104 relative to the temperature changing chamber 202, and to enhance the stability of the tray body 104 to facilitate smooth sliding of the tray body 104 within the temperature changing chamber 202. Specifically, the second pulley 1104 is arranged on the tray body 104 to cooperate with the second slide rail 1102 of the temperature changing chamber 202 to facilitate the sliding of the tray body 104 relative to the temperature changing chamber 202. The cooperation between the second pulley 1104 and the second slide rail 1102 provides additional support to prevent the tray body 104 from being offset or unstable during the sliding process.

[0083] By arranging the first pulley 1086 and the second pulley 1104 at the two ends of the tray body 104 in the extension direction of the second slide rail 1102, the force applied to the tray body 104 during the sliding process can be evenly distributed, which can prevent the tray from being deformed or sliding unevenly due to uneven force during the sliding process.

[0084] In the initial state (when the tray is fully closed), the cooperation between the second pulley 1104 and the second slide rail 1102 at the rear end of the tray body 104, i.e., the end away from the door body, can provide additional support to ensure that the tray body 104 remains stably connected to the temperature changing chamber 202, and to prevent the tray from being offset due to uneven force. In addition, the cooperation between the first pulley 1086 and the second pulley 1104 ensures that the tray body 104 can be evenly stressed during the sliding process, and prevents the tray from sliding unevenly due to uneven force.

[0085] When the tray and the drawer slide together, the first pulley 1086 and the second pulley 1104 act simultaneously to cooperate with the first slide rail 1082 and the second slide rail 1102, respectively, to effectively disperse the frictional force generated during the sliding process, and to ensure smooth sliding of the tray. The cooperation between the two pulleys ensures that the tray does not tilt or become unstable during the sliding process, maintains the horizontal position of the tray body 104, and prevents the effects of uneven frictional force. When the drawer has been fully pulled out and the tray needs to be pushed into the temperature changing chamber 202, an external force can be applied to the tray body 104 to cause it to slide relative to the second pulley 1104 and the second slide rail 1102 to achieve the homing operation.

[0086] In some embodiments, the drawer body 102 optionally includes a housing 1032, a connecting door 1036, and a storage cavity 1034. The housing 1032 serves as the external structure of the drawer body 102, providing robust support. Its durability can withstand the pressure of frequent use, while ensuring that the internal storage cavity 1034 will not deform or be damaged during long-term use. The storage cavity 1034 provides additional storage space, allowing the drawer body 102 to not only serve as a structural part for moving and supporting the tray, but also to store items such as food items that need to be kept at a certain level of humidity.

[0087] The connecting door 1036 is mainly used to connect the drawer body 102 to the door of the refrigerator 200, providing a convenient opening and closing method. During use, users can open or close the drawer by sliding it to retrieve or place items. The connecting door 1036 ensures effective cooperation between the drawer and the refrigerator 200 door, guaranteeing the door's sealing performance and preventing excessive gaps between the door and the refrigerator 200 cavity when opening and closing the drawer, which could affect the overall refrigeration effect.

[0088] The connection between the door and the drawer body 102 allows users to easily operate the drawer, maintains the space utilization of the refrigerator 200, and avoids damage to the door.

[0089] By introducing a housing 1032 and a storage cavity 1034 into the drawer body 102, not only can a larger storage space be provided, but the moisturizing effect can also be optimized to meet the storage needs of different foods. Of course, the design of connecting the door 1036 further enhances the sealing performance, making the refrigerator 200 more efficient in operation and able to maintain stable temperature and humidity conditions.

[0090] In some embodiments, optionally, the bottom wall of the tray body 104 is restricted to be non-parallel to the plane of the second opening 1042, and the vertical distance between the side of the bottom wall facing the connecting door 1036 and the plane of the second opening 1042 is less than the vertical distance between the side of the bottom wall away from the connecting door 1036 and the plane of the second opening 1042. This allows for an inclined design, where the bottom wall and the second opening 1042 are not parallel and form an inclined angle, so that moisture or condensate in the tray can naturally flow or accumulate towards the side away from the connecting door 1036.

[0091] Meanwhile, moisture accumulates on the lower side of the bottom wall, creating a localized humidity concentration in that area. This allows for the continuous release of moisture into the tray, enhancing the moisture retention performance inside the drawer. This design is beneficial for storing ingredients that require a high humidity environment, such as leafy vegetables or fruits, thus extending their shelf life.

[0092] The recirculation of cold air within the refrigerator (specifically the 200°C unit) can cause condensation to form on the bottom wall of the drawer tray. The angled design reduces airflow disturbance to the condensation, preventing water droplets from moving with the airflow or splashing, thus maintaining a stable environment inside the drawer.

[0093] Specifically, such as Figure 4 As shown, the angle of inclination α of the bottom slope relative to the horizontal plane can be 0.5° to 5°, and further, it is selected as 1°.

[0094] Based on any of the above embodiments, optionally, such as Figure 5 As shown, a reinforcing rib 112 is provided on the bottom wall of the tray body 104. When the tray body 104 is assembled into the drawer body 102, some or all of the reinforcing ribs 112 are located inside the drawer body 102. When the tray body 104 has an irregular shape, that is, there are downward protruding reinforcing ribs 112 at the bottom part. By sinking into the drawer body 102, the reinforcing ribs 112 effectively reduce the local position of the bottom wall of the tray, thereby expanding the storage space of the lower drawer. It can be understood that this design allows the storage volume to be maximized and the space utilization efficiency to be improved within a limited height space.

[0095] In addition, the heightening rib 112 forms a tight contact or limiting fit with the inner wall of the drawer body 102, thereby reducing the side or bottom gaps after the tray and drawer are combined. The sealing effect helps to isolate air circulation, thereby controlling humidity and preventing the external environment from affecting the items stored inside the drawer. Especially in the humidifying drawer 100, good sealing can delay moisture loss and extend the shelf life of perishable items such as fruits and vegetables.

[0096] Furthermore, the recessed structure with heightening ribs 112 increases storage space without altering the external dimensions, making it suitable for placing longer or taller ingredients (such as cucumbers and vegetable stems and leaves). The irregularly shaped tray design can also accommodate specially packaged or irregularly shaped items, avoiding wasted space.

[0097] Based on any of the above embodiments, optionally, such as Figure 6 As shown, a door structure 114 is provided, which serves as the outer surface of the refrigerator 200. By being fixedly connected to the connecting door 1036, it forms the sealing and opening / closing surface at the front of the refrigerator 200, isolating it from the external environment and providing heat preservation and moisture retention functions. The highest point of the tray body 104 is lower than the highest point of the door structure 114, meaning it is lower in height than the door structure 114, thus fully utilizing the internal space of the refrigerator 200 and preventing the tray from impacting the inner side of the door. Furthermore, the lowest point of the drawer body 102 is higher than the lowest point of the door structure 114, meaning it is higher in height than the bottom edge of the door structure 114, preventing the drawer from sagging or contacting the inner wall of the refrigerator 200 door and protecting the structural integrity.

[0098] The door structure 114 fits tightly against the edge of the frame of the temperature-changing chamber 202, forming a closed interface around the opening of the temperature-changing chamber 202, improving the sealing performance, reducing moisture loss, and maintaining the moisturizing effect.

[0099] The door structure 114 fits snugly against the opening of the variable temperature chamber 202, forming a sealed space when closed, which effectively slows down the loss of moisture from food, extends the preservation time, and improves the energy efficiency of the refrigerator 200.

[0100] Furthermore, by limiting the highest point of the tray body 104 to be lower than the highest point of the door structure 114, interference with the inner wall of the refrigerator door 200 is avoided during sliding or pushing / pulling, protecting internal components and reducing the risk of wear and tear during daily use. The lowest point of the drawer body 102 is higher than the lowest point of the door structure 114, preventing the drawer from sagging or falling when fully loaded, maintaining smooth sliding, and reducing impact and noise.

[0101] Another embodiment of this application provides a refrigerator 200, such as Figure 6 As shown, the system includes a cabinet 201, an air duct structure 204, and a humidifying drawer 100. In this design, a variable temperature chamber 202 is provided inside the cabinet 201, and the humidifying drawer 100 is slidably connected to the variable temperature chamber 202 to allow the humidifying drawer 100 to slide. Based on this, a dual-vent design allows for precise humidity adjustment. Specifically, the first vent 2042 points towards the drawer body 102, providing humidity control for the lower area, suitable for storing high-moisture fruits and vegetables. Airflow into the drawer prevents moisture retention and avoids food spoilage. The second vent 2044 points towards the tray body 104, promoting air circulation within the tray cavity and reducing condensation on the tray surface, suitable for foods with lower moisture requirements or dry surfaces (such as leafy vegetables).

[0102] By using dual air vents at the top and bottom to separate airflow, the problem of moisture buildup at the bottom of traditional humidifying drawers is solved, which causes food to become wet and spoil, and condensation dripping from the top layer, resulting in a damp surface and shortening the shelf life.

[0103] The air duct structure 204 is located on the rear side of the temperature-changing chamber 202, which does not occupy the left, right or up and down space of the drawer, thus improving the space utilization rate. At the same time, it will not interfere with the drawer when sliding, thus maintaining smooth operation.

[0104] It should be added that, since the refrigerator 200 includes any of the aforementioned humidifying drawers 100, it has the technical effects of any of the aforementioned humidifying drawers 100, which will not be elaborated here.

[0105] In one specific embodiment, as people's living standards continue to improve, their demands for the capacity and ease of use of large refrigerators are increasing. Refrigerators with partitioned freezers and large drawer doors are becoming increasingly popular as the preferred choice for users due to their large storage capacity and convenient access.

[0106] Therefore, there are more and more drawer-door refrigerators on the market with trays on the drawers, and the trays move through the sliding part of the drawer below via rollers.

[0107] However, these drawer-door refrigerators also have the disadvantage of poor moisture retention due to their large capacity; food loses moisture during the cooling process, making it difficult to maintain humidity. For example... Figure 7 The diagram shows a moisture-retaining structural design for the drawer in other products. This design only addresses the moisture retention of the upper tray (i.e., the first container 103'), while the lower drawer (i.e., the second container 104') achieves moisture retention solely through a breathable membrane attached to the front of the lower drawer. However, this design fails to prevent moisture loss from the rear and sides of the lower drawer. Therefore, the moisture retention in the lower drawer is not ideal.

[0108] To achieve proper moisture retention in this type of lower drawer, strong sealing around the drawer is essential. Other products typically achieve moisture retention in the lower drawer by using a single injection-molded glass panel or glass inserts to maintain the gap between the tray and the lower drawer, while ensuring that the tray doesn't deform when heavy items are placed on it, thus preventing it from affecting usability. These solutions are costly and complex. Furthermore, the gap between the tray and the lower drawer remains relatively large, making it difficult to achieve a good moisture retention effect. The moisture-retaining drawer provided in this embodiment meets the user's need for partitioned storage while ensuring the moisture retention of the lower drawer. It has a simple structure and low cost; the upper tray is mounted on top of the lower drawer. Rollers at the rear of the upper tray allow for movement between it and the inner drawer; rollers at the front of the upper tray allow for movement between it and the lower drawer.

[0109] This solution achieves lower drawer moisture retention by lowering the upper tray (the tray body) into the lower drawer (the drawer body), creating a 2mm gap on each side and a 3.5mm gap at the front and rear ends. Lowering the upper tray directly improves the lower drawer's moisture retention. However, reducing the gap between the upper and lower drawers causes the upper tray to press against the lower drawer under weight, resulting in poor upper tray pull-out performance. The following section outlines solutions to this problem.

[0110] 1. Make a 1° bevel at the bottom of the upper tray.

[0111] 2. The lower drawer guide rail structure is designed so that when the upper tray and lower drawer move, the upper tray moves upward first, and then moves laterally. When the drawer door is pulled out, the upper tray and lower drawer do not move relative to each other.

[0112] At this point, the rear gap between the upper and lower drawers is 3.5mm, the front gap is 3mm, and the left and right gaps are 2mm. When the upper tray moves to the middle, the gap between it and the lower drawer is 9.5mm. The upper tray will not adversely affect daily use even when under load.

[0113] It is understandable that this solution can achieve the desired moisture retention in the lower drawer, and the improvement in drawer moisture retention does not incur additional costs, making it highly feasible.

[0114] In addition, to increase the volume of the lower drawer, the upper tray may be made into an irregular shape. The bottom of the irregular part can be reinforced (i.e., raised ribs) and sunken into the lower drawer to improve the sealing of the left and right sides of the lower drawer.

[0115] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0116] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0117] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0118] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A moisture-retaining drawer, characterized in that, For use in a refrigerator, the refrigerator includes a variable temperature chamber, and the humidifying drawer is disposed in the variable temperature chamber, the humidifying drawer comprising: The drawer body is slidably connected to the temperature-changing chamber, and the top of the drawer body has a first opening; The tray body is covered by the first opening. The tray body is movably connected to the drawer body and the temperature-changing chamber. The top of the tray body is provided with a second opening, and part of the bottom wall of the tray body is located inside the drawer body, and part of the bottom wall is lower than the first opening. A moisture-permeable structure is provided between the tray body and the drawer body, through which air inside the drawer body and air outside the drawer body can flow.

2. The moisture-retaining drawer according to claim 1, characterized in that, The first opening is stepped, and in the height direction of the drawer body, part of the bottom wall of the tray body is lower than the horizontal plane corresponding to the highest point of the first opening.

3. The moisture-retaining drawer according to claim 1, characterized in that, The first opening includes at least two stepped surfaces of different heights, and a portion of the bottom wall of the tray body is lower than the highest of the plurality of stepped surfaces.

4. The humidifying drawer according to claim 1, characterized in that, Also includes: The first slide rail is located on the top of the drawer body, and one end of the first slide rail is provided with a groove-shaped limiting groove. The first pulley is located at the bottom of the tray body; The depth of the limiting groove is greater than the radius of the first pulley. When the first pulley is within the limiting groove, the drawer body moves to drive the tray body to move. When the first pulley moves outside the limiting groove, the tray body can move relative to the drawer body under force.

5. The moisture-retaining drawer according to claim 4, characterized in that, The first slide rail extends along the sliding direction of the drawer body relative to the temperature-changing chamber, and the limiting groove is provided at the end of the first slide rail facing the connecting door of the drawer body.

6. The moisture-retaining drawer according to claim 4, characterized in that, When the first pulley is within the limiting groove, the gap between the drawer body and the tray body is in the range of 1.5mm to 4mm.

7. The moisture-retaining drawer according to claim 4, characterized in that, Also includes: A second pulley is provided on the tray body, and the second pulley is used to cooperate with the second slide rail of the temperature-changing chamber to make the tray body slide relative to the temperature-changing chamber. In the direction of extension of the second slide rail, the first pulley and the second pulley are located at both ends of the tray body.

8. The humidifier drawer according to any one of claims 1 to 7, characterized in that, The drawer body includes: The housing has a storage cavity inside and a connecting door on the front side.

9. The moisture-retaining drawer according to claim 8, characterized in that, The bottom wall of the tray body is not parallel to the plane of the second opening, and the vertical distance between the side of the bottom wall facing the connecting door and the plane of the second opening is less than the vertical distance between the side of the bottom wall away from the connecting door and the plane of the second opening.

10. The humidifying drawer according to claim 8, characterized in that, Also includes: Heightening ribs are provided on the bottom wall of the tray body, and at least a portion of the heightening ribs are located within the drawer body.

11. The humidifying drawer according to claim 8, characterized in that, Also includes: The door structure is connected to the connecting door body, and in the height direction, the highest point of the tray body is lower than the highest point of the door structure, and the lowest point of the drawer body is higher than the lowest point of the door structure.

12. A refrigerator, characterized in that, include: The enclosure contains a temperature-controlled chamber. The humidifying drawer according to any one of claims 1 to 11 is slidably connected to the temperature-changing chamber; An air duct structure is provided on the rear side of the temperature-changing chamber, and the air duct structure is provided with a first air outlet and a second air outlet. The first air outlet is disposed facing the drawer body, and the second air outlet is disposed facing the tray body.

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