Moisturizing drawer and refrigerator

Abstract

The invention relates to a moisturizing drawer and a refrigerator, and the moisturizing drawer comprises a drawer frame which is provided with a first drainage hole; the humidifying assembly comprises a first ventilation pipeline, and the first ventilation pipeline is connected with the drawer frame and used for introducing external hot air; the drainage assembly comprises a first drainage pipe, the first end of the first drainage pipe is connected with the first drainage hole, external hot air can be introduced, part of the external hot air forms high-humidity air after being cooled, and the situation that the freshness of the fruits and vegetables is reduced due to air drying is avoided; and the other part of condensed water caused by external hot air is discharged out of the drawer frame from the first drain hole through the first drain pipe under the action of self gravity, so that the situation that the condensed water remains in the drawer frame to cause spoilage of fruits and vegetables is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a moisturizing drawer and a refrigerator. Background Art

[0002] As people's demands for living standards continue to improve, household refrigerators have entered thousands of households, and people have more and more requirements for the functions of refrigerators, among which the humidity control and freshness preservation function of refrigerators is one of them.

[0003] Among the related technologies, the technologies for realizing humidification and preservation functions mainly include ultrasonic humidification technology and moisture-permeable membrane humidity control technology. Among them, ultrasonic humidification technology requires the addition of a water storage box, which not only takes up space in the refrigerator but also requires regular replenishment of water. The operation is cumbersome and brings inconvenience to users. In addition, the humidity drops rapidly after humidification and cannot maintain the humidity in the compartment for a long time. The moisture-permeable membrane humidity control technology has the problem of low humidity adjustment efficiency. In a low-humidity environment, part of the water in fruits and vegetables will be sacrificed, resulting in serious drying of fruits and vegetables. In a high-humidity environment, the humidity in the drawer frame is too high, which is prone to condensation. The condensation will accelerate the decay of fruits and vegetables, resulting in a decrease in the freshness of fruits and vegetables. Summary of the invention

[0004] The present application provides a moisturizing drawer and a refrigerator to solve the technical problem that the humidifying device of the existing refrigerator is prone to produce condensation water, which accelerates the decay of fruits and vegetables and causes the freshness of fruits and vegetables to decrease.

[0005] In a first aspect, the present application provides a moisturizing drawer, which is arranged on a refrigerator, and is characterized in that the moisturizing drawer comprises:

[0006] The drawer frame is provided with a first drainage hole;

[0007] A humidifying assembly, comprising a first ventilation duct, wherein the first ventilation duct is connected to the drawer frame and is used to introduce external hot air;

[0008] A drainage assembly includes a first drainage pipe, wherein a first end of the first drainage pipe is connected to the first drainage hole;

[0009] Among them, when the internal humidity of the drawer frame is lower than the first humidity threshold, the first ventilation duct introduces external hot air, a part of the external hot air forms high-humidity air under the action of the temperature difference between the inside and outside of the drawer frame, and the condensation water caused by the other part of the external hot air is discharged from the drawer frame from the first drain hole through the first drain pipe under the action of its own gravity.

[0010] In a possible implementation, a drainage portion is provided on a side of the drawer frame close to the first ventilation duct, and the drainage portion is inclined relative to the horizontal direction to have a high end and a low end, the high end of the drainage portion is connected to the internal space of the drawer frame, and the low end of the drainage portion is provided with the first drainage hole.

[0011] In a possible implementation, the drainage assembly includes a second drain pipe, a first end of the second drain pipe is connected to the first ventilation duct, a second end of the second drain pipe is connected to the refrigeration air duct of the refrigerator; and the second end of the first drain pipe is connected to the second drain pipe.

[0012] In a possible implementation, a water collecting groove is provided in the first ventilation duct, a third drain pipe is provided at the water collecting groove, an end of the third drain pipe away from the water collecting groove is extended in a direction close to the second drain pipe, and is connected to the second drain pipe.

[0013] In a possible implementation, the humidification component includes a fan and a heater, and the fan and the heater are arranged on the first ventilation duct, the air inlet of the fan is arranged away from the drawer frame, and the air outlet of the fan is arranged toward the drawer frame.

[0014] In a possible implementation, a first opening is provided on the drawer frame, and the first end of the first ventilation duct extends into the first opening and extends toward the inner space of the drawer frame.

[0015] In a possible implementation, a sealing ring is provided on the outer peripheral side of the first ventilation duct, and one side of the sealing ring abuts against the outer side wall of the drawer frame; an ear is provided on the sealing ring, and the ear is connected to the drawer frame.

[0016] In a possible implementation, the humidifying assembly includes a second ventilation duct and a baffle, the first end of the second ventilation duct is connected to the second end of the second ventilation duct, the second end of the second ventilation duct is provided with a second opening, and the baffle is rotatably covered on the second opening;

[0017] The baffle has a fixed end and a movable end, the fixed end of the baffle is rotatably connected to the second ventilation duct, and the movable end of the baffle can rotate away from the second opening under the negative pressure of the fan to have a first state of opening the second opening; the movable end of the baffle can rotate close to the second opening under the action of its own gravity to have a second state of closing the second opening.

[0018] In a possible implementation, the fixed end of the baffle is provided with a first boss, a rotating shaft is rotatably provided on the first boss, and an installation groove is provided on the inner side wall of the second ventilation duct, and the installation groove is rotatably connected to the rotating shaft.

[0019] In a possible implementation, the humidifying component includes a protective cover, the protective cover covers the second opening, the protective cover is provided with a through hole, and the through hole is connected to the second opening;

[0020] The protective cover is provided with a second boss connected to the second ventilation duct, and a limiting rib is provided on the protective cover. When the baffle is in the second state, an end of the limiting rib away from the protective cover abuts against a side of the baffle away from the fan.

[0021] In one possible implementation, the refrigerator includes an air duct mask and a back plate, the first end of the second ventilation duct is provided with a first annular groove connected to the air duct mask on its outer side wall, and the second end of the second ventilation duct is provided with a second annular groove connected to the back plate on its outer side wall.

[0022] In a possible implementation manner, a filter is provided at the first end of the first ventilation duct.

[0023] In a second aspect, the present application provides a refrigerator comprising the moisturizing drawer as described above.

[0024] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0025] In the moisturizing drawer and refrigerator provided in the embodiments of the present application, external hot air refers to the air from outside the refrigerator. The air outside the refrigerator can obtain hot air after heating or non-heating means. When the refrigerator is operating in summer, the hot air can be obtained without heating the external air. When the refrigerator is operating in winter, the external air can be heated to obtain hot air. The temperature of the hot air is higher than the temperature inside the drawer frame. It is understandable that if the internal humidity of the drawer frame is lower than the first humidity threshold, it indicates that the internal humidity of the drawer frame is too low and needs to be humidified. At this time, external hot air is introduced. Since the temperature of the hot air is higher than the temperature inside the drawer frame, there is a temperature difference between the inside and outside of the drawer. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer bucket from the gap between the drawer frame and the drawer bucket, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying out and reducing their freshness; after the other part of the external hot air is cooled to the dew point temperature, it will condense on the wall of the first ventilation duct and the drawer frame to form condensation water, and the condensation water can flow out from the first drain pipe through the first drain hole under the action of its own gravity, thereby preventing the condensation water from remaining in the drawer frame and causing the fruits and vegetables to rot and deteriorate.

[0026] The refrigerator provided by the embodiment of the present application includes the above-mentioned moisturizing drawer. After the external hot air is introduced into the drawer frame, high-humidity air can be obtained under the effect of temperature difference, and condensation water caused by the external hot air can be discharged from the drawer frame. Therefore, it naturally has the technical effect of the above-mentioned moisturizing drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0030] Figure 1 A schematic diagram of the structure of a moisturizing drawer provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 A partial structural cross-sectional view of the moisturizing drawer shown;

[0032] Figure 3 for Figure 1 A schematic diagram of the structure of the middle A part;

[0033] Figure 4 for Figure 1 A schematic diagram of the structure of the humidifying component and the drainage component of the moisturizing drawer shown;

[0034] Figure 5 for Figure 4 A partial structural schematic diagram of the humidification assembly shown, wherein the baffle is in a second state;

[0035] Figure 6 for Figure 4 A partial structural schematic diagram of a humidifying assembly is shown, wherein the baffle is in a first state;

[0036] Figure 7 for Figure 4 A schematic structural diagram of a baffle of a humidifying assembly shown;

[0037] Figure 8 for Figure 4 A schematic structural diagram of the protective cover of the humidification component is shown.

[0038] Description of reference numerals:

[0039] 1. Drawer frame; 11. Drainage portion; 111. First drainage hole; 12. First opening;

[0040] 2. Humidification assembly; 21. First ventilation duct; 211. Water collecting groove; 212. Third drainage pipe; 213. Sealing ring; 214. Ear; 215. Reinforcement rib; 22. Fan; 23. Second ventilation duct; 231. Second opening; 232. Mounting groove; 233. First annular groove; 234. Second annular groove; 24. Baffle; 241. First boss; 242. Rotating shaft; 25. Protective cover; 251. Through hole; 252. Second boss; 253. Limiting rib; 26. Filter element;

[0041] 3. Drainage assembly; 31. First drain pipe; 32. Second drain pipe;

[0042] 4. Drawer; 5. Dehumidification damper; 6. Oxygen control component; 7. Air duct mask; 8. Back panel. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0044] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0045] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0046] Among the related technologies, the technologies for realizing humidification and preservation functions mainly include ultrasonic humidification technology and moisture-permeable membrane humidity control technology. Among them, ultrasonic humidification technology requires the addition of a water storage box, which not only takes up space in the refrigerator but also requires regular replenishment of water. The operation is cumbersome and brings inconvenience to users. In addition, the humidity drops rapidly after humidification and cannot maintain the humidity in the compartment for a long time. The moisture-permeable membrane humidity control technology has the problem of low humidity adjustment efficiency. In a low-humidity environment, part of the water in fruits and vegetables will be sacrificed, resulting in serious drying of fruits and vegetables. In a high-humidity environment, the humidity in the drawer frame is too high, which is prone to condensation. The condensation will accelerate the decay of fruits and vegetables, resulting in a decrease in the freshness of fruits and vegetables.

[0047] In order to solve the technical problem that the humidification device of the existing refrigerator is prone to produce condensation water, which will accelerate the decay of fruits and vegetables and cause the freshness of fruits and vegetables to decrease, the present application provides a moisturizing drawer and refrigerator, which can introduce external hot air, and use the temperature difference between the inside and outside of the drawer to make a part of the external hot air form high-humidity air after cooling, so as to replenish moisture to the fruits and vegetables stored in the drawer, and prevent the fruits and vegetables from drying out and reducing their freshness; the condensation water caused by the other part of the external hot air is discharged from the drawer frame from the first drainage hole through the first drainage pipe under the action of its own gravity, so as to prevent the condensation water from remaining in the drawer frame and causing the fruits and vegetables to rot and deteriorate.

[0048] Figure 1 and Figure 2A moisturizing drawer provided in the present application is arranged on a refrigerator, and includes a drawer frame 1, a humidifying component 2 and a drainage component 3, wherein a first drainage hole 111 is arranged on the drawer frame 1; the humidifying component 2 includes a first ventilation duct 21, which is connected to the drawer frame 1, and is used to introduce external hot air; the drainage component 3 includes a first drain pipe 31, and a first end of the first drain pipe 31 is connected to the first drainage hole 111; wherein, when the internal humidity of the drawer frame 1 is lower than the first humidity threshold, the first ventilation duct 21 introduces external hot air, a part of the external hot air forms high-humidity air under the action of the temperature difference between the inside and outside of the drawer frame 1, and the condensation water caused by the other part of the external hot air is discharged from the drawer frame 1 from the first drainage hole 111 through the first drain pipe 31 under the action of its own gravity.

[0049] It should be noted that external hot air refers to the air from outside the refrigerator. The air outside the refrigerator can obtain hot air after heating or non-heating means. When the refrigerator is operating in summer, it does not need to heat the external air to obtain hot air. When the refrigerator is operating in winter, the external air can be heated to obtain hot air. The temperature of the hot air is higher than the temperature inside the drawer frame 1. It can be understood that if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, it indicates that the internal humidity of the drawer frame 1 is too low and needs to be humidified. At this time, external hot air is introduced. Since the temperature of the hot air is higher than the temperature inside the drawer frame 1, there is a temperature difference between the inside and outside of the drawer. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer bucket 4 from the gap between the drawer frame 1 and the drawer bucket 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying out and reducing their freshness; after the other part of the external hot air is cooled to the dew point temperature, it will condense on the first ventilation duct 21 and the wall of the drawer frame 1 to form condensation water, and the condensation water can flow out from the first drain pipe 31 through the first drainage hole 111 under the action of its own gravity, thereby preventing the condensation water from remaining in the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate.

[0050] Alternatively, if Figure 1As shown, the moisturizing drawer may include a drawer 4, which is movably arranged on the drawer frame 1. The moving direction of the drawer 4 may be the X direction shown in the figure, and the two sides of the X direction are respectively the front and the rear. Accordingly, the side of the drawer frame 1 facing the user is the front side, and the side of the drawer 4 facing away from the user is the rear side. The inner wall of the drawer frame 1 may be provided with a slide rail, and the outer wall of the drawer 4 may be provided with a slider slidably connected to the slide rail. When the user applies force to pull the drawer 4, the drawer 4 may move forward and backward along the X on the slide rail, thereby opening or closing the drawer to achieve storage or taking of fruits and vegetables. When the drawer is in a closed state, the drawer 4 is closed relative to the drawer frame 1, and there is a gap between the drawer 4 and the drawer frame 1. The high-humidity air formed by the external hot air after cooling can enter the storage space of the drawer 4 from the gap between the drawer frame 1 and the drawer 4, thereby replenishing moisture to the stored fruits and vegetables, and preventing the fruits and vegetables from drying and reducing freshness. In this way, the preservation time of fruits and vegetables can be extended. It should be noted that, in order to reduce the friction between the bottom of the drawer 4 and the inner wall of the drawer frame 1, a certain height can generally be reserved between the bottom of the drawer 4 and the inner wall of the drawer frame 1 to avoid direct contact between the two.

[0051] For example, the cross-sectional shape of the first ventilation duct 21 can be set to a circular, square, elliptical, polygonal, etc., which is not specifically limited in the present application. For the convenience of manufacturing and processing, preferably, the cross-sectional shape of the first ventilation duct 21 is set to a circular shape.

[0052] Exemplarily, a thermometer and hygrometer may be provided inside the drawer frame 1 to obtain data such as the internal humidity, real-time temperature, and dew point temperature of the drawer frame 1 .

[0053] Exemplarily, the refrigerator includes a box body, and a storage space is formed inside the box body. The storage space is used to place items that the user needs to refrigerate or freeze.

[0054] Exemplarily, the box body may be in the shape of a cuboid, which is formed by an inner liner, an outer shell, and a foam layer located therebetween. A plurality of storage compartments may be divided in the box body, for example, the box body is vertically divided into a freezer compartment at the bottom and a refrigeration compartment at the top, and each of the separated spaces may have an independent storage space. Specifically, the freezer compartment is defined at the bottom side of the box body and can be selectively covered by a drawer-type freezer compartment door, and the refrigeration compartment is defined at the top side of the box body, and the refrigeration compartment can be selectively opened or closed by a refrigeration compartment door body pivotably mounted on the refrigeration compartment.

[0055] Exemplarily, the moisturizing drawer may be disposed in the above-mentioned refrigerating compartment.

[0056] In some embodiments, Figure 2 and Figure 3As shown, a drainage portion 11 is provided on one side of the drawer frame 1 close to the first ventilation duct 21. The drainage portion 11 is tilted relative to the horizontal direction to have a high end and a low end. The high end of the drainage portion 11 is connected to the internal space of the drawer frame 1, and the low end of the drainage portion 11 is provided with a first drainage hole 111. After the external hot air is cooled to the dew point temperature, it will condense on the wall of the first ventilation duct 21, the drawer frame 1, and even the drawer bucket 4 to form condensed water. By providing the drainage portion 11, this part of the condensed water can flow into the drainage portion 11 along the first ventilation duct 21, the drawer frame 1, and even the wall of the drawer bucket 4 under the action of gravity. Since the drainage portion 11 is tilted relative to the horizontal direction, the condensed water flows from the high end of the drainage portion 11 through the first drainage hole 111 into the first drainage pipe 31. The drainage portion 11 has a drainage effect on this part of the condensed water, which can prevent the accumulation of excessive condensed water inside the drawer frame 1 and cause the fruits and vegetables to rot and deteriorate.

[0057] In one example, if Figure 3 As shown, the drainage portion 11 may include a drainage frame, the top of the drainage frame is the high end of the drainage portion 11, the bottom of the drainage frame is pointed, and the bottom of the drainage frame is the low end of the drainage portion 11. The bottom of the drainage frame is provided with the first drainage hole 111, and the first drainage hole 111 is connected to the first end of the first drainage pipe 31. It can be understood that after the external hot air is cooled to reach the dew point temperature, it will condense on the wall of the first ventilation duct 21, the drawer frame 1 and even the drawer bucket 4 to form condensation water. This part of the condensation water flows along the first ventilation duct 21, the drawer frame 1 and even the wall of the drawer bucket 4 under the action of gravity into the drainage frame, and then the condensation water flows from the top of the drainage frame through the first drainage hole 111 into the first drainage pipe 31, thereby discharging the condensation water to the outside of the drawer frame 1, which can prevent excessive accumulation of condensation water inside the drawer frame 1 and cause the fruits and vegetables to rot and deteriorate.

[0058] In another example, the drainage portion 11 may include a drainage pipe, which is funnel-shaped, and the top of the drainage pipe is connected to the internal space of the drawer frame 1. The bottom of the drainage pipe is provided with the first drainage hole 111, and the first drainage hole 111 is connected to the first end of the first drainage pipe 31. It can be understood that after the external hot air is cooled to reach the dew point temperature, it will condense on the wall of the first ventilation duct 21, the drawer frame 1 and even the drawer bucket 4 to form condensation water. This part of the condensation water flows into the drainage pipe along the first ventilation duct 21, the drawer frame 1 and even the wall of the drawer bucket 4 under the action of gravity, and then the condensation water flows from the top of the drainage pipe through the first drainage hole 111 into the first drainage pipe 31, thereby discharging the condensation water to the outside of the drawer frame 1, which can prevent excessive accumulation of condensation water inside the drawer frame 1 and cause the fruits and vegetables to rot and deteriorate.

[0059] Of course, the drainage portion 11 can also be set to other structures, as long as it can achieve the drainage function of condensation water, and this application does not make any specific restrictions here.

[0060] Optionally, a second drainage hole may be provided at the bottom of the drawer 4, and the second drainage hole is connected to the internal space of the drawer frame 1. When external hot air is introduced, since the temperature of the hot air is higher than the temperature inside the drawer frame 1, there is a temperature difference between the inside and outside of the drawer, and a part of the external hot air is cooled to form high-humidity air, which enters the storage space of the drawer 4 through the gap between the drawer frame 1 and the drawer 4 and the second drainage hole, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying and reducing their freshness; after another part of the external hot air is cooled to the dew point temperature, condensation water will first be formed on the wall surface of the first ventilation duct 21, and then condensed on the wall surface of the drawer frame 1 to form condensation water. Since the external hot air has a long passage path to reach the drawer 4, only a very small amount of high-humidity air will condense on the wall surface of the drawer 4 to form condensation water. Therefore, the second drainage hole is provided at the bottom of the drawer 4, so that a small amount of condensation water formed on the wall of the drawer 4 can flow from the second drainage hole through the first drainage hole 111, and then be discharged from the first drainage pipe 31, thereby preventing excessive condensation water from causing corruption of fruits and vegetables.

[0061] The present application does not impose any specific restrictions on the shape, size and number of the second drainage holes. For example, the second drainage holes can be set to be circular, square or other shapes. The second drainage holes can be distributed in a rectangular array or in an irregular arrangement.

[0062] In one embodiment, Figure 2 and Figure 3 As shown, the drainage assembly 3 includes a second drain pipe 32, a first end of the second drain pipe 32 is connected to the first ventilation duct 21, and a second end of the second drain pipe 32 is connected to the refrigeration air duct of the refrigerator; the second end of the first drain pipe 31 is connected to the second drain pipe 32. It can be understood that if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, it indicates that the internal humidity of the drawer frame 1 is too low and needs to be humidified. At this time, external hot air is introduced. Since the temperature of the hot air is higher than the temperature inside the drawer frame 1, there is a temperature difference between the inside and outside of the drawer. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer bucket 4 from the gap between the drawer frame 1 and the drawer bucket 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying and reducing their freshness; after the other part of the external hot air is cooled to reach the dew point temperature, condensation water will first be formed on the wall surface of the first ventilation duct 21. This part of the condensation water can be directly discharged from the second drain pipe 32 to the refrigeration air duct under the action of its own gravity; then it condenses on the wall surface of the drawer frame 1 to form condensation water. The condensation water condensed on the wall surface of the drawer frame 1 can be discharged from the first drain pipe 31 and the second drain pipe 32 to the refrigeration air duct in sequence through the first drainage hole 111 under the action of its own gravity, thereby preventing the condensation water from remaining in the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate.

[0063] In this embodiment, the condensed water flowing into the refrigeration air duct can be reused for a second time, for example, the fan 22 in the refrigeration air duct is used to convert this part of the condensed water into high-humidity air, and the high-humidity air is introduced into the drawer to humidify the fruits and vegetables stored in the drawer.

[0064] This embodiment can also be applied in combination with the above-mentioned embodiments to obtain more embodiments. For example, a drainage frame or a drainage pipe is provided, and the condensation water condensed on the wall of the drawer frame 1 can flow into the first drainage pipe 31 through the first drainage hole 111 of the drainage frame or the first drainage hole 111 of the drainage pipe under the action of its own gravity, thereby realizing the discharge of the condensation water.

[0065] In one embodiment, Figure 4 As shown, a water collecting groove 211 is provided in the first ventilation duct 21, and a third drain pipe 212 is provided at the water collecting groove 211. One end of the third drain pipe 212 away from the water collecting groove 211 is extended in a direction close to the second drain pipe 32 and connected to the second drain pipe 32. The water collecting groove 211 is set to sink relative to the inner wall of the first ventilation duct 21. Therefore, if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, it indicates that the internal humidity of the drawer frame 1 is too low and needs to be humidified. At this time, external hot air is introduced. Due to the temperature difference between the inside and outside of the drawer, the external hot air is cooled to the dew point temperature and continuously condenses on the wall surface of the first ventilation duct 21 to form condensed water. When the condensed water gradually accumulates, it will converge to the water collecting groove 211. Then, this part of the condensed water can flow out from the third drain pipe 212 and the second drain pipe 32 under the action of its own gravity. A small amount of condensed water remains on the wall surface of the first ventilation duct 21 , and the humidity of the external hot air can be further increased under the action of the fan 22 , so as to provide moisture to the fruits and vegetables inside the drawer frame 1 .

[0066] The connection methods between the second drain pipe 32 and the third drain pipe 212 include socket connection, welding connection, connection with fasteners such as clamps, etc., and the present application does not make any specific restrictions here.

[0067] In some embodiments, Figure 2As shown, the humidification component 2 includes a fan 22 and a heater, and the fan 22 and the heater are arranged on the first ventilation duct 21, and the air inlet of the fan 22 is arranged away from the drawer frame 1, and the air outlet of the fan 22 is arranged toward the drawer frame 1. The air inlet of the fan 22 is arranged away from the drawer frame 1, and the air outlet of the fan 22 is arranged toward the drawer frame 1. When the fan 22 is in the turned-on state, a negative pressure can be formed at the air inlet of the fan 22, thereby introducing air outside the refrigerator. When the refrigerator is operated in summer, the ambient temperature outside the refrigerator is relatively high. Therefore, if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, the heater does not need to be turned on at this time, and only the fan 22 is turned on, so that the external hot air flows into the drawer frame 1 from the first ventilation duct 21. Under the temperature difference between the inside and outside of the drawer, the external hot air is cooled to form high-humidity air. This part of the high-humidity air enters the storage space of the drawer 4 from the gap between the drawer frame 1 and the drawer 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer, and preventing the fruits and vegetables from drying out and reducing the freshness; when the refrigerator is operated in winter and transitional seasons, the ambient temperature outside the refrigerator is relatively low, even lower than the internal temperature of the drawer frame 1. Therefore, if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, the heater and the fan 22 need to be turned on at the same time. The heater heats the external air introduced by the fan 22 to form hot air. The external hot air is cooled to form high-humidity air. This part of the high-humidity air enters the storage space of the drawer 4 from the gap between the drawer frame 1 and the drawer 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer, and preventing the fruits and vegetables from drying out and reducing the freshness.

[0068] Exemplarily, the heater may be an existing aluminum foil heater, which is attached to the inner wall of the first ventilation duct 21 .

[0069] In one embodiment, Figure 2 As shown, the drawer frame 1 is provided with a first opening 12, and the first end of the first ventilation duct 21 extends into the first opening 12 and extends to the inner space of the drawer frame 1. The first end of the first ventilation duct 21 extends into the first opening 12 and extends to the inner space of the drawer frame 1, so that the temperature of the first end of the first ventilation duct 21 is close to the inner temperature of the drawer frame 1, that is, the temperature of the first end of the first ventilation duct 21 is relatively low. When external hot air is introduced, a part of the external hot air will condense on the wall surface of the first ventilation duct 21 under the effect of the temperature difference to form condensation water. When the condensation water gradually accumulates, it will converge to the water collecting groove 211, and then this part of the condensation water can flow out from the third drain pipe 212 and the second drain pipe 32 under the effect of its own gravity. A very small part of the condensation water remains on the wall surface of the first ventilation duct 21, and the humidity of the external hot air can be further increased under the effect of the fan 22, so as to provide moisture to the fruits and vegetables inside the drawer frame 1.

[0070] In one embodiment, Figure 3As shown, a sealing ring 213 is provided on the outer peripheral side of the first ventilation duct 21, and one side of the sealing ring 213 abuts against the outer side wall of the drawer frame 1; an ear 214 is provided on the sealing ring 213, and the ear 214 is connected to the drawer frame 1. One side of the sealing ring 213 abuts against the outer side wall of the drawer frame 1, which can improve the sealing between the first ventilation duct 21 and the drawer frame 1, and prevent high-humidity air from flowing out of the gap between the first ventilation duct 21 and the first opening 12, thereby improving the humidification efficiency. A plurality of ears 214 can be provided on the peripheral side of the sealing ring 213 to improve the connection stability of the first ventilation duct 21 installed on the drawer frame 1.

[0071] The connection method between the ear 214 and the drawer frame 1 may include fastener connection, adhesive connection, etc. For example, three ears 214 are arranged on the peripheral side of the sealing ring 213, and a through hole 251 is arranged on the ear 214. The fastener may be a screw, and the ear 214 is fastened to the drawer frame 1 by the screw.

[0072] Optionally, a reinforcing rib 215 is provided on the side of the ear 214 facing away from the drawer frame 1, and the reinforcing rib 215 is connected to the outer wall of the first ventilation duct 21 to improve the structural strength of the ear 214, to avoid cracking at the connection between the ear 214 and the first ventilation duct 21 due to excessive external force during the connection process, thereby improving the connection stability of the first ventilation duct 21 installed on the drawer frame 1.

[0073] Since the first ventilation duct 21 is directly connected to the internal space of the drawer frame 1, the temperature of the cold storage compartment is relatively low while the temperature outside the refrigerator is variable. When the temperature difference between the inside and outside of the refrigerator is large (especially when the refrigerator is running in summer), even if the fan 22 is not turned on, it is very easy to continuously generate condensation water on the inner wall surface of the first ventilation duct 21. As the condensation water increases, it will overflow into the inside of the drawer frame 1, and the cold air inside the drawer frame 1 is also easy to flow from the first ventilation duct 21 to the outside of the refrigerator, resulting in a loss of cold air. Therefore, the present application designs a flip baffle 24 to close the channel of external hot air when the drawer frame 1 does not need to be humidified. On the one hand, it can avoid the automatic generation of condensation water and overflow into the internal space of the drawer frame 1, and on the other hand, it can also reduce the loss of cold air. The specific structural design is described as follows.

[0074] In one embodiment, Figure 4 and Figure 5As shown, the humidifying component 2 includes a second ventilation duct 23 and a baffle 24, the first end of the second ventilation duct 23 is connected to the second end of the second ventilation duct 23, the second end of the second ventilation duct 23 is provided with a second opening 231, and the baffle 24 is rotatably covered on the second opening 231; the baffle 24 has a fixed end and a moving end that are relatively arranged, the fixed end of the baffle 24 is rotatably connected to the second ventilation duct 23, the moving end of the baffle 24 can be rotated away from the second opening 231 under the negative pressure of the fan 22, so as to have a first state of opening the second opening 231, and the moving end of the baffle 24 can be rotated close to the second opening 231 under the action of its own gravity, so as to have a second state of closing the second opening 231.

[0075] It can be understood that when the inner space of the drawer frame 1 needs to be humidified, the fan 22 is in the on state, the baffle 24 is sucked up under the negative pressure of the fan 22, and the moving end of the baffle 24 rotates away from the second opening 231 to reach the first state, such as Figure 6 As shown, at this time, the baffle 24 opens the second opening 231, and the external hot air can enter the second ventilation duct 23 from the second opening 231, and enter the internal space of the drawer frame 1 along the first ventilation duct 21. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer 4 from the gap between the drawer frame 1 and the drawer 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying out and reducing their freshness. After the other part of the external hot air is cooled to the dew point temperature, it will condense on the wall of the first ventilation duct 21 and the drawer frame 1 to form condensed water. The condensed water can flow out from the first drain pipe 31 through the first drain hole 111 under the action of its own gravity, so as to prevent the condensed water from remaining in the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate. When the internal space of the drawer frame 1 does not need to be humidified, the fan 22 is in a closed state. At this time, the moving end of the baffle 24 rotates close to the second opening 231 under the action of its own gravity to reach the second state, as shown in FIG. Figure 5 As shown, at this time, the baffle 24 closes the second opening 231. The baffle 24 can block external hot air from entering the drawer frame 1 to form condensed water, and at the same time prevent the cold air inside the drawer frame 1 from flowing to the outside of the refrigerator, thereby avoiding cold air loss.

[0076] Optionally, the first end of the second ventilation duct 23 is sleeve-connected with the second end of the second ventilation duct 23. The cross section of the second ventilation duct 23 can be set to be circular, and accordingly, the baffle 24 is also set to be a circular baffle 24.

[0077] In some other embodiments, an existing control valve may be used to control the opening and closing of the second opening 231. For example, the control valve may be an existing solenoid valve, which is disposed at the second opening 231. The opening and closing of the second opening 231 is controlled by controlling the opening and closing of the solenoid valve.

[0078] Optionally, if the internal humidity of the drawer frame 1 is higher than the second humidity threshold, the second opening 231 is controlled to be closed. The humidity of the refrigerating compartment should generally be between 40% and 60%, so the first humidity threshold can be set to 40% and the second humidity threshold can be set to 60%.

[0079] In one embodiment, Figure 7 As shown, the fixed end of the baffle 24 is provided with a first boss 241, and a rotating shaft 242 is rotatably provided on the first boss 241. The inner side wall of the second ventilation duct 23 is provided with a mounting groove 232 rotatably connected to the rotating shaft 242. The rotating connection between the rotating shaft 242 and the mounting groove 232 can realize the rotatable connection between the baffle 24 and the second ventilation duct 23. When the internal space of the drawer frame 1 needs to be humidified, the fan 22 is in the open state, the baffle 24 is sucked up under the negative pressure of the fan 22, and the moving end of the baffle 24 rotates clockwise around the rotating shaft 242 to reach the first state, as shown in FIG. Figure 6 As shown, at this time, the baffle 24 opens the second opening 231, and the external hot air can enter the second ventilation duct 23 from the second opening 231, and enter the internal space of the drawer frame 1 along the first ventilation duct 21. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer 4 from the gap between the drawer frame 1 and the drawer 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying out and reducing their freshness. After the other part of the external hot air is cooled to the dew point temperature, it will condense on the wall of the first ventilation duct 21 and the drawer frame 1 to form condensed water. The condensed water can flow out from the first drain pipe 31 through the first drain hole 111 under the action of its own gravity, so as to prevent the condensed water from remaining in the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate. When the internal space of the drawer frame 1 does not need to be humidified, the fan 22 is in a closed state. At this time, the moving end of the baffle 24 rotates counterclockwise around the rotating shaft 242 under the action of its own gravity to reach the second state, as shown in FIG. Figure 5 As shown, at this time, the baffle 24 closes the second opening 231. The baffle 24 can block external hot air from entering the drawer frame 1 to form condensed water, and at the same time prevent the cold air inside the drawer frame 1 from flowing to the outside of the refrigerator, thereby avoiding cold air loss.

[0080] If the fan 22 changes from the open state to the closed state, during the flipping process of the baffle 24 from the first state to the second state, the baffle 24 is prone to over-flipping, or swinging back and forth and failing to close immediately. Therefore, the present application provides a limiting rib 253 to enable the baffle 24 to quickly return to the second state of closing the second opening 231. The specific structural design is described as follows.

[0081] In one embodiment, Figure 5 and Figure 8As shown, the humidifying assembly 2 includes a protective cover 25, which covers the second opening 231, and is provided with a through hole 251, which is connected to the second opening 231; a second boss 252 connected to the second ventilation duct 23 is provided on the protective cover 25, and a limiting rib 253 is provided on the protective cover 25. When the baffle 24 is in the second state, the limiting rib 253 extends along the axial direction of the second ventilation duct 23 away from the end of the protective cover 25, and abuts against the side of the baffle 24 away from the fan 22. The second boss 252 can be provided with a plurality of second bosses 252, which are arranged along the circumference of the protective cover 25, so that the second boss 252 can be connected to the second ventilation duct 23 by clamping, and it is convenient to disassemble. The limiting rib 253 can be provided with a plurality of limiting ribs 253, which are arranged along the circumference of the protective cover 25, and the plurality of limiting ribs 253 will not affect the upward flipping of the moving end of the baffle 24.

[0082] It is understandable that by providing the protective cover 25, the baffle 24 can be protected to prevent the baffle 24 from being offset relative to the second ventilation duct 23 due to external force. If the baffle 24 is offset, a gap will be formed between the baffle 24 and the second ventilation duct 23 in the second state, and cold air will be lost from the gap between the baffle 24 and the second ventilation duct 23, and external hot air will also flow into the first ventilation duct 21 from the gap to form condensed water. When the internal space of the drawer frame 1 does not need to be humidified, the fan 22 is in a closed state. At this time, the moving end of the baffle 24 rotates counterclockwise around the rotating shaft 242 under the action of its own gravity. Since the second boss 252 is provided with a limiting rib 253, the side of the baffle 24 away from the fan 22 will abut against the limiting rib 253, thereby quickly returning to the second state, closing the second opening 231, and preventing the loss of cold.

[0083] Furthermore, in an embodiment not shown in the figure, a first magnetic part is provided at one end of the limiting rib 253 away from the protective cover 25, and a second magnetic part is provided at one side of the baffle 24 away from the fan 22, and there is a magnetic attraction between the first magnetic part and the second magnetic part. By using the magnetic attraction between the first magnetic part and the second magnetic part, the baffle 24 can be restored to the second state more quickly to close the second opening 231.

[0084] In one embodiment, Figure 2As shown, the refrigerator includes an air duct mask 7 and a back plate 8, a first end of the second ventilation duct 23 is provided with a first annular groove 233 connected to the air duct mask 7 on its outer side wall, and a second end of the second ventilation duct 23 is provided with a second annular groove 234 connected to the back plate 8 on its outer side wall. During the installation process of the humidifying assembly 2, the first annular groove 233 of the first ventilation duct 21 is firstly connected to the air duct mask 7 by clamping, and then the ear 214 of the first ventilation duct 21 is fastened to the drawer frame 1 by a fastener, and then the second annular groove 234 of the second ventilation duct 23 is connected to the back plate 8 by clamping, so that the humidifying assembly 2 can be stably installed on the refrigerator, and the cold air in the refrigerator is prevented from leaking to the outside of the refrigerator, thereby ensuring the refrigeration effect of the refrigerator and the stability of the internal environment, providing reliable protection for the fresh-keeping storage of food in the refrigerator, and also conducive to the efficient operation and long-term use of the refrigerator as a whole.

[0085] In one embodiment, Figure 4 As shown, a filter 26 is provided at the first end of the first ventilation duct 21. By providing the filter 26, impurities in the external hot air can be filtered to ensure the cleanliness of the air entering the refrigerator. In this way, not only can a cleaner and more sanitary environment be created for the food stored in the refrigerator, the potential impact of impurities on the quality of food can be reduced, and the shelf life of food can be extended, but also the normal operation of the refrigeration system and other related components in the refrigerator can be facilitated, and the probability of failure caused by the accumulation of impurities can be reduced, thereby improving the overall performance and reliability of the refrigerator and providing users with a better user experience.

[0086] The filter element 26 can be an activated carbon box, a fiber filter, a HEPA filter or other filtering device, wherein the fiber filter is a physical filtering method that uses fine fibers to intercept larger particles of impurities such as dust and hair in the air. The fiber filter is made of various materials, such as polyester fibers, etc., and has a relatively low cost. It can effectively remove visible suspended matter and is relatively easy to install and replace. The HEPA filter (high-efficiency air filter) has a very good filtering effect on tiny particles. It can filter out particles larger than 0.3 microns, including bacteria, viruses, etc., with a filtration efficiency of about 99.97%, which can significantly improve the cleanliness of the air entering the refrigerator, and is especially suitable for refrigerator environments with high air quality requirements.

[0087] Alternatively, if Figure 1 As shown, the moisturizing drawer may be provided with a dehumidification damper 5, which can adjust the humidity of the air entering the refrigerator or freezer, prevent water vapor condensation, reduce frosting, keep the environment inside the box dry, and help preserve food. The efficiency of dehumidification using only the dehumidification damper 5 is low. By combining the humidification component 2 and the drainage component 3 of the above embodiment, condensed water can be efficiently discharged to prevent condensed water from remaining inside the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate.

[0088] Alternatively, if Figure 1 As shown, the rear side of the moisturizing drawer may be provided with an oxygen control component 6, which can adjust the oxygen and nitrogen concentrations in the box. Reducing the oxygen content can inhibit the respiration of fruits and vegetables, reduce the consumption of nutrients, and extend the shelf life. At the same time, oxygen control can also inhibit the growth and reproduction of microorganisms to a certain extent.

[0089] An embodiment of the present application also provides a refrigerator, comprising the moisturizing drawer as described above.

[0090] It can be understood that if the internal humidity of the drawer frame 1 is lower than the first humidity threshold, it indicates that the internal humidity of the drawer frame 1 is too low and needs to be humidified. At this time, external hot air is introduced. Since the temperature of the hot air is higher than the temperature inside the drawer frame 1, there is a temperature difference between the inside and outside of the drawer. A part of the external hot air forms high-humidity air after cooling. This part of the high-humidity air enters the storage space of the drawer bucket 4 from the gap between the drawer frame 1 and the drawer bucket 4, thereby replenishing moisture to the fruits and vegetables stored in the drawer to prevent the fruits and vegetables from drying out and reducing their freshness; after the other part of the external hot air is cooled to the dew point temperature, it will condense on the first ventilation duct 21 and the wall of the drawer frame 1 to form condensation water, and the condensation water can flow out from the first drain pipe 31 through the first drainage hole 111 under the action of its own gravity, thereby preventing the condensation water from remaining in the drawer frame 1 and causing the fruits and vegetables to rot and deteriorate.

[0091] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0092] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0093] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A moisturizing drawer, arranged on a refrigerator, characterized in that: The moisturizing drawer comprises: The drawer frame is provided with a first drainage hole; A humidifying assembly, comprising a first ventilation duct, wherein the first ventilation duct is connected to the drawer frame and is used to introduce external hot air; A drainage assembly includes a first drainage pipe, wherein a first end of the first drainage pipe is connected to the first drainage hole; Among them, when the internal humidity of the drawer frame is lower than the first humidity threshold, the first ventilation duct introduces external hot air, a part of the external hot air forms high-humidity air under the action of the temperature difference between the inside and outside of the drawer frame, and the condensation water caused by the other part of the external hot air is discharged from the drawer frame from the first drain hole through the first drain pipe under the action of its own gravity.

2. The moisturizing drawer according to claim 1, characterized in that: A drainage portion is provided on one side of the drawer frame close to the first ventilation duct, and the drainage portion is inclined relative to the horizontal direction to have a high end and a low end, the high end of the drainage portion is connected to the internal space of the drawer frame, and the low end of the drainage portion is provided with the first drainage hole.

3. The moisturizing drawer according to claim 1 or 2, characterized in that: The drainage assembly includes a second drainage pipe, a first end of the second drainage pipe is connected to the first ventilation duct, a second end of the second drainage pipe is connected to the refrigeration air duct of the refrigerator; and the second end of the first drainage pipe is connected to the second drainage pipe.

4. The moisturizing drawer according to claim 3, characterized in that: A water collecting groove is arranged in the first ventilation duct, and a third drain pipe is arranged at the water collecting groove. One end of the third drain pipe away from the water collecting groove is extended in a direction close to the second drain pipe and is connected to the second drain pipe.

5. The moisturizing drawer according to claim 1, characterized in that: The humidifying component includes a fan and a heater, wherein the fan and the heater are arranged on the first ventilation duct, the air inlet of the fan is arranged away from the drawer frame, and the air outlet of the fan is arranged toward the drawer frame.

6. The moisturizing drawer according to claim 5, characterized in that: The drawer frame is provided with a first opening, and the first end of the first ventilation duct extends into the first opening and extends toward the inner space of the drawer frame.

7. The moisturizing drawer according to claim 5, characterized in that: A sealing ring is arranged on the outer peripheral side of the first ventilation duct, and one side of the sealing ring abuts against the outer side wall of the drawer frame; an ear is arranged on the sealing ring, and the ear is connected to the drawer frame.

8. The moisturizing drawer according to claim 5, characterized in that: The humidifying assembly includes a second ventilation duct and a baffle, wherein the first end of the second ventilation duct is connected to the second end of the second ventilation duct, the second end of the second ventilation duct is provided with a second opening, and the baffle is rotatably covered on the second opening; The baffle has a fixed end and a moving end, the fixed end of the baffle is rotatably connected to the second ventilation duct, and the moving end of the baffle can be rotated away from the second opening under the negative pressure of the fan to have a first state of opening the second opening; The moving end of the baffle can rotate close to the second opening under the action of its own weight to have a second state of closing the second opening.

9. The moisturizing drawer according to claim 8, characterized in that: The fixed end of the baffle is provided with a first boss, a rotating shaft is rotatably provided on the first boss, and an installation groove is provided on the inner side wall of the second ventilation duct, and the installation groove is rotatably connected to the rotating shaft.

10. The moisturizing drawer according to claim 8, characterized in that: The humidifying assembly comprises a protective cover, the protective cover covers the second opening, a through hole is provided on the protective cover, and the through hole is connected to the second opening; The protective cover is provided with a second boss connected to the second ventilation duct, and a limiting rib is provided on the protective cover. When the baffle is in the second state, an end of the limiting rib away from the protective cover abuts against a side of the baffle away from the fan.

11. The moisturizing drawer according to claim 8, characterized in that: The refrigerator includes an air duct mask and a back plate, the first end of the second ventilation duct is provided with a first annular groove connected to the air duct mask on its outer side wall, and the second end of the second ventilation duct is provided with a second annular groove connected to the back plate on its outer side wall.

12. The moisturizing drawer according to claim 1, characterized in that: A filter is disposed at the first end of the first ventilation duct.

13. A refrigerator, characterized in that: Comprising a moisturizing drawer as described in any one of claims 1 to 12.

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