A refrigerator

Abstract

The present invention relates to the technical field of food thawing, and discloses a refrigerator comprising: a refrigerated compartment, wherein the refrigerated compartment is provided with a refrigerated area and a functional area, wherein a first fan is provided in the functional area; a refrigerated air duct, wherein an evaporator is installed in the refrigerated air duct, wherein the refrigerated air duct comprises an air supply path arranged on one side of the evaporator and an air return port arranged on the other side of the evaporator, wherein both the refrigerated area and the functional area are connected to the air return port; and wherein a second fan is provided in the refrigerated air duct, wherein the second fan is located on a side of the evaporator facing away from the air return port, wherein the air supply path comprises a first air duct and a second air duct, wherein the first air duct is connected to the refrigerated area, and the second air duct is connected to the functional area. The present invention relies on the first fan to generate a high-speed airflow, thereby shortening the thawing time, improving the thawing efficiency, ensuring uniform thawing, and avoiding localized ripening. At the same time, the evaporator increases humidity in the functional area for thawing, thereby preserving the juice of the food to the greatest extent and improving the quality and taste of the thawed food.

Description

Technical Field

[0001] The present invention relates to the technical field of food thawing, in particular to a refrigerator. Background Art

[0002] Currently, food is typically thawed naturally, which involves placing frozen food at room temperature and letting the surrounding temperature thaw it. However, this method is slow and incomplete. Because food is exposed to air, it is susceptible to bacterial contamination, leading to spoilage.

[0003] To improve thawing speed and quality, various thawing methods have emerged in the prior art, including electric heating, hot water, running water, air thawing, and refrigeration. However, these methods all have drawbacks and negative consequences, such as uneven heating leading to localized ripening and reduced taste, water immersion leading to juice loss and microbial contamination, and long thawing times resulting in a poor user experience. Summary of the Invention

[0004] The purpose of the present invention is to provide a refrigerator to solve the problems of local ripening and long thawing time in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides a refrigerator comprising: a refrigeration compartment, wherein a refrigeration area and a functional area are provided in the refrigeration compartment, and a first fan is provided in the functional area; a refrigeration air duct, wherein an evaporator is installed in the refrigeration air duct, and the refrigeration air duct has an air supply path arranged on one side of the evaporator and an air return port arranged on the other side of the evaporator, and the refrigeration area and the functional area are both connected to the return air port. The refrigeration air duct further comprises a second fan, and the second fan is located on a side of the evaporator away from the return air port. The air supply path comprises a first air path and a second air path, the first air path is connected to the refrigeration area, and the second air path is connected to the functional area.

[0006] The advantage of this refrigerator over existing technologies lies in that, because the first fan continuously blows air onto the food to be thawed, this process removes a significant amount of moisture, causing moisture loss in the food and affecting its taste. Conventional refrigerators typically incorporate a humidifier to moisturize the food to be thawed, but the refrigerator of this invention does not incorporate an additional humidifying component. Instead, it relies on the evaporator's own operation to humidify the food to be thawed. Specifically, when the refrigerator's functional area is in a slightly frozen state, the evaporator operates normally and continues to cool. During this process, its surface temperature falls below the air dew point, causing water vapor in the passing air to condense into liquid water upon contact with the air. This frost quickly freezes into frost below 0°C, gradually thickening and accumulating on the evaporator's surface. When the refrigerator's functional area is in defrosting mode, the evaporator is first controlled to stop cooling after defrosting begins. For example, a solenoid valve can be used to stop the evaporation of refrigerant in the evaporator. Then, the high-speed rotation of the second fan brings the hot air in the refrigerator compartment to the evaporator. At this time, the frost on the evaporator surface begins to melt, and the air humidity rises rapidly. The second fan then acts as a humidifier, sending the moist air in the evaporator into the refrigerator compartment through the airflow to humidify the food to be thawed. When the evaporator surface temperature reaches between 0-8°C, the relative humidity in the refrigerator compartment can be increased to above 90%.

[0007] According to the refrigerator of the embodiment of the present invention, the functional area includes a first functional area and a second functional area, and the second air duct, the first functional area, and the second functional area are connected in sequence.

[0008] According to the refrigerator of the embodiment of the present invention, the first functional area has a first wall surface, the first wall surface is provided with a through hole, and the second functional area is connected to the first functional area through the through hole.

[0009] According to the refrigerator of the embodiment of the present invention, the first functional area and the second functional area are arranged vertically spaced apart, the first functional area has a side wall and a bottom wall, and the first wall surface is the side wall of the first functional area.

[0010] According to the refrigerator of the embodiment of the present invention, the functional area is separated from the refrigeration area by a sealing partition, at least a portion of the sealing partition has an interlayer, and the interlayer is filled with a heat-insulating material.

[0011] According to an embodiment of the present invention, the refrigerator further includes an air duct assembly, the first air duct and the second air duct are formed in the air duct assembly, the refrigerated compartment and the evaporator are spaced apart in the horizontal direction, and the air duct assembly is located between the evaporator and the refrigerated compartment.

[0012] According to the refrigerator of the embodiment of the present invention, the air duct assembly further includes a first air door and a second air door, the first air door is installed in the first air passage, and the second air door is installed in the second air passage.

[0013] According to the refrigerator of the embodiment of the present invention, the functional area has a connecting hole connected to the refrigeration area, the air inlet side of the first fan is connected to the connecting hole, and the air outlet side of the first fan faces the functional area.

[0014] According to the refrigerator of the embodiment of the present invention, the first fan is rotatably installed in the functional area.

[0015] According to the refrigerator of the embodiment of the present invention, the functional area has an upper wall surface, the communication hole is provided on the upper wall surface, and the first functional area and the second functional area are arranged vertically spaced apart.

[0016] According to an embodiment of the present invention, the refrigerator further includes a door body, which is used to enclose the refrigeration compartment. The functional area includes a front side wall close to the door body and a rear side wall close to the air duct assembly. The air outlet of the second air duct passes through the rear side wall and is connected to the functional area. The first fan is arranged on a side of the top wall of the functional area close to the rear side wall, and the angle between the blowing direction of the first fan and the horizontal direction is an acute angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 is a structural schematic diagram of a refrigerator according to an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a refrigeration compartment of a refrigerator according to an embodiment of the present invention;

[0020] Figure 3 is a diagram of an air circulation path of a refrigerated compartment according to an embodiment of the present invention;

[0021] Figure 4 is a diagram of an air circulation path of a refrigerated compartment according to another embodiment of the present invention;

[0022] Figure 5 is a wind circuit diagram of a refrigerated compartment according to yet another embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of the damper structure according to another embodiment of the present invention;

[0024] Figure 7 is a schematic structural diagram of a partition plate according to an embodiment of the present invention;

[0025] Figure 8 is a schematic structural diagram of a partition plate according to another embodiment of the present invention;

[0026] Figure 9is a schematic structural diagram of a partition plate according to another embodiment of the present invention;

[0027] Figure 10 is a front view of a drawer structure according to an embodiment of the present invention;

[0028] Figure 11 is a side view of a drawer structure according to an embodiment of the present invention;

[0029] Figure 12 FIG. 4 is a flowchart of thawing control according to an embodiment of the present invention.

[0030] Reference numerals

[0031] 1. Refrigerated room;

[0032] 11. Refrigeration area; 12. Functional area; 120. Double-layer drawer; 121. First functional area; 1211. First wall; 1212. Second wall; 122. Second functional area; 123. Functional area exhaust vent; 13. Evaporator; 131. First air path; 1311. First branch; 1312. Second branch; 132. Second air path; 133. First damper; 134. Second damper; 135. Refrigeration area air supply vent; 136. Function Zone air supply vent; 14. Fan; 141. First fan; 142. Second fan; 15. Refrigerated zone temperature sensor; 16. Functional zone temperature sensor; 17. Evaporator temperature sensor; 18. Return air vent; 19. Divider plate; 20. Partition plate; 21. First drawer; 211. First track; 212. First sliding portion; 22. Second drawer; 221. Second track; 2211. Groove; 222. Second sliding portion; 23. Drawer cover;

[0033] 2. Freezer compartment;

[0034] 3. Food;

[0035] 4. Door body. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] In order to solve the problems in the prior art such as uneven heating resulting in deterioration of local ripening quality and taste, water immersion resulting in juice loss and microbial contamination, and long thawing time resulting in poor user experience, the present invention provides a refrigerator comprising a freezing compartment 2 and a refrigerating compartment 1.

[0040] See also Figure 1 The refrigerator comprises a freezer compartment 2, a refrigerator compartment 1, and an air duct. An evaporator 13 is located within the duct. The refrigerator compartment 1 is divided into a refrigerated area 11 and a functional area 12. The refrigerated area 11 is used to refrigerate items such as food and beverages. The functional area 12 has at least a defrosting function and a micro-freezing function. Food in the functional area 12 can be stored in a micro-freezing state or defrosted. The micro-freezing function uses precise temperature control (approximately -3°C to 0°C) to slightly freeze the surface of ingredients 3, such as meat and fish, while keeping the interior soft. This allows for short-term storage (approximately one week) without thawing, preserving the freshness. Compared to freezing (-18°C), this reduces cell damage and, compared to refrigeration, extends the shelf life. This is suitable for frequently used ingredients 3, offering a compromise between freshness and freezing. The evaporator 13 connects to the refrigerated area 11 and the functional area 12 via the air duct, providing cooling for both areas.

[0041] Specifically, functional area 12 is equipped with fans 14, including a first fan 141. First fan 141 is used for defrosting. Its primary function is to blow air directly onto the frozen food placed in functional area 12, accelerating the flow of refrigerated air within functional area 12 and thawing the frozen food through high-speed air pressure. This high-speed airflow quickly transfers heat from the refrigerator to the surface of the food and removes any cold air from the surface, significantly shortening the thawing time. The fan's circulating airflow reduces thawing dead zones, preventing localized overheating or unthawed areas. This is particularly suitable for large pieces of food 3, such as whole meat. Compared to microwave thawing, it provides more uniform thawing, avoiding edge-cooking issues.

[0042] See also Figure 2-5 The refrigerator also includes a refrigeration air duct, in which an evaporator 13 is installed. The evaporator 13 is spaced apart from the refrigeration zone 11, forming a gap between the evaporator 13 and the refrigeration compartment 1. The evaporator 13 is at least partially located within the gap. When the evaporator 13 is in operation, it generates cooling, forming cold air within the gap. A second fan 142 is located within the gap. The second fan 142 is used for cooling. The air blown by the second fan 142 forms an airflow, which brings the cold air within the gap into the refrigeration compartment 1, thereby cooling the refrigeration compartment 1. The two ends of the gap respectively connect the refrigeration zone 11 and the functional zone 12. One side of the evaporator 13 is a supply air path. The second fan 142 delivers the cold air within the gap into the refrigeration compartment 1 through the supply air path. The other side of the evaporator 13 is a return air vent 18, which is connected to both the refrigeration zone 11 and the functional zone 12.

[0043] The second fan 142 is arranged on the side of the evaporator 13 away from the return air port 18. The air supply path includes a first air path 131 and a second air path 132. The first air path 131 is connected to the refrigerated area 11, and the second air path 132 is connected to the functional area 12. A portion of the cold air blown out from the gap enters the refrigerated area 11 to cool the refrigerator and provide a low-temperature environment for the frozen food normally stored in the refrigerator. The first air path 131 is formed in the refrigerated area 11. The circulating air in the refrigerated area 11 returns to the evaporator 13 from the return air port 18, repeating the heat exchange. This cycle continuously provides a low-temperature environment for the refrigerated area 11. Another portion of the cold air blown out from the gap enters the functional area 12, forming the second air path 132 in the functional area 12. The air exchanges heat with the food to be thawed in the functional area 12 and is then discharged. The air discharged from the functional area 12 returns to the evaporator 13 through the return air port 18, exchanges heat with the evaporator 13 again, and the cycle continues.

[0044] The advantage of this refrigerator over the prior art is that, since the first fan 141 continuously blows air on the food to be thawed, this process will take away a lot of moisture, causing the food to lose moisture and affecting the taste. To solve this problem, the refrigerator of the present invention relies on the work of the evaporator 13 itself to humidify the food to be thawed, humidifying the surface of the food while thawing, providing moisture, and preventing the food from losing moisture. In addition, the refrigerator has a simple structure and can achieve the moisturizing function of the food without the need for additional devices. Specifically, when the refrigerator functional area 12 is in a slightly frozen state, the evaporator 13 is in a normal working state and continues to cool. During this process, its surface temperature is lower than the dew point temperature of the air, causing the water vapor in the air flowing through it to condense into liquid water when it is cold, and quickly freeze into frost below 0°C. The frost layer gradually thickens and accumulates on the surface of the evaporator 13. When the refrigerator functional area 12 is in the defrosting state, after the defrosting starts, the evaporator 13 is first controlled to stop. For example, the evaporation of the refrigerant in the evaporator 13 can be stopped by regulating the solenoid valve or other means. Then, the second fan 142 is used to bring the high-temperature air in the refrigerated compartment 1 to the evaporator 13. At this time, the frost on the surface of the evaporator 13 begins to melt, and the air humidity increases rapidly. The second fan 142 then plays a humidifying role, and the moist air in the evaporator 13 is sent into the refrigerated compartment 1 by means of the wind flow to humidify the food to be thawed. In this way, the humidity inside the refrigerated compartment 1 can be increased to prevent moisture loss in the food.

[0045] In one embodiment, when the surface temperature of the evaporator 13 reaches between 0-8° C., the relative humidity in the refrigerated compartment 1 can be increased to above 90%.

[0046] Therefore, the humidity in the thawing area can be stabilized by relying only on the evaporator 13 and other related components of the refrigerator itself, so that the food to be thawed can continue to maintain humidity during the thawing process, avoiding water loss and affecting the taste.

[0047] See also Figure 7-9 In some embodiments, the refrigerator further includes a partition 20 , which is disposed in the refrigerating compartment 1 to construct a refrigerating area 11 and a functional area 12 that are separated from each other in the refrigerating compartment 1 .

[0048] In one embodiment, multiple partitions 20 may be provided, and the multiple partitions 20 collectively enclose a functional area 12 in the refrigerated compartment 1, and the remaining area in the refrigerated compartment 1 is the refrigerated area 11. The functional area 12 can be used to defrost and / or store food 3, and the refrigerated area 11 can be used to refrigerate and store food 3.

[0049] In one embodiment, the partition 20 includes an insulating layer. Because the partition 20 includes an insulating layer, heat exchange between the interior of the functional area 12 enclosed by the partition 20 and the environment outside the functional area 12 is less likely to occur. This allows the functional area 12 to defrost the food 3 placed therein without affecting the environment outside the functional area 12, such as the refrigeration and preservation of the food 3 in the refrigerated area 11.

[0050] See also Figure 7-9 In some embodiments, the refrigerator further includes a partition plate 19, which is detachably mounted on the functional area 12 to selectively divide the functional area 12 into a plurality of sub-functional areas.

[0051] In one embodiment, the partition plate 19 can be single, and the single partition plate 19 is arranged in the functional area 12, dividing the functional area 12 into two sub-functional areas. The first fan 141 is installed in one of the two sub-functional areas. The functional area 12 can be used to defrost the food 3. The other of the two sub-functional areas is not installed with the first fan 141 and can be used to slightly freeze the food 3 without defrosting it.

[0052] It can be understood that by dividing the larger functional area 12 into two smaller sub-functional areas and placing the first fan 141 in one of the sub-functional areas, the food 3 placed in the sub-functional area can be closer to the first fan 141, thereby improving the thawing effect. In this way, by dividing the functional area 12 into multiple sub-functional areas through the partition plate 19, the internal space of the functional area 12 can be fully utilized, and the functional areas 12 can have different functions while improving the thawing effect.

[0053] In one embodiment, when there is a single partition plate 19, the single partition plate 19 can be horizontally arranged in the functional area 12 to separate the functional area 12 into two upper and lower sub-functional areas;

[0054] In one embodiment, when there is a single partition plate 19, the single partition plate 19 can be vertically arranged in the functional area 12 to separate the functional area 12 into two left and right sub-functional areas.

[0055] In some embodiments, the functional area 12 includes a first functional area 121 and a second functional area 122, and the second air passage 132 is sequentially connected to the first functional area 121 and the second functional area 122. The second air passage 132 is connected to the first functional area 121, and the first functional area 121 is connected to the second functional area 122. The air blown out of the second air passage 132 enters the first functional area 121, undergoes heat exchange, and then enters the second functional area 122 from the first functional area 121.

[0056] Specifically, the first functional zone 121 is the thawing zone, and the second functional zone 122 is the partial freezing zone. The thawing zone is used to thaw frozen food, while the partial freezing zone is used to keep frozen food partially frozen. The partial freezing function (also known as "partial freezing preservation" or "soft freezing") is a preservation technology between refrigeration (0-4°C) and freezing (below -18°C). Its core principle is to precisely control the temperature to form a very thin layer of ice crystals on the surface of the food, while maintaining a partial freezing state within, preventing complete freezing. Compared to traditional refrigeration, the partial freezing function is more effective in inhibiting bacterial growth. Compared to traditional freezing, it reduces cell rupture, preserving the texture and nutrients of the food. Regarding thawing, the partial freezing function avoids the hardening of food caused by traditional freezing, allowing for immediate use. Furthermore, partial freezing consumes less energy than deep freezing, maintaining a temperature between -3°C and -7°C.

[0057] On the one hand, this design does not require an additional humidifying device, which can solve the problem of how to maintain the humidity of food during thawing and simplify the refrigerator structure; on the other hand, it is also beneficial to the defrosting of the evaporator 13, killing two birds with one stone.

[0058] In one embodiment, the first functional area 121 has a first wall 1211 with a through hole, and the second functional area 122 is connected to the first functional area 121 through the through hole. As a result, the airflow in the first functional area 121 can enter the second functional area 122 through the through hole, achieving air circulation between the two areas.

[0059] Specifically, the first fan 141 defrosts the food in the functional zone 12 by blowing air, primarily targeting the food in the first functional zone 121. During thawing, the first functional zone 121 is in a thawing state, while the second functional zone 122 is in a partially frozen state. During this process, a high-speed airflow is formed in the first functional zone 121, continuously removing cold air from the surface of the food. The cold air then flows out of the first functional zone 121 and into the second functional zone 122 through the through-holes, thereby maintaining the partially frozen state of the food in the second functional zone 122. The high-speed airflow first exchanges heat with the food to be thawed in the first functional zone 121, then enters the second functional zone 122 through the through-holes. After exchanging heat with the partially frozen food in the second functional zone 122, it exits the functional zone 12 and returns to the return air outlet 18.

[0060] In one embodiment, the second functional area 122 has a lower wall surface, and a functional area exhaust port 123 is opened on the lower wall surface. The airflow in the functional area 12 is discharged from the functional area 12 through the functional area exhaust port 123 and enters the return air port 18 for return air.

[0061] In one embodiment, the functional zone exhaust vents 123 are located on the side of the lower wall away from the through-hole. This arrangement has the advantage that when airflow from the first functional zone 121 enters the second functional zone 122 through the through-hole, it flows through the food and is discharged through the functional zone exhaust vents 123. Since the air flowing from the through-hole into the second functional zone 122 cannot completely exchange heat within the first functional zone 121, it still retains some cooling capacity. Therefore, by arranging the through-hole and the functional zone exhaust vents 123 on opposite sides, the airflow can pass over the food surface as much as possible, increasing the contact area with the food, maintaining a low temperature environment in the second functional zone 122, and improving cooling efficiency.

[0062] In one embodiment, the first functional area 121 and the second functional area 122 are arranged vertically spaced apart, the first functional area 121 has side walls and a bottom wall, and the first wall surface 1211 is the side wall of the first functional area 121. As a result, the airflow in the first functional area 121 is more easily discharged from the through hole to the second functional area 122.

[0063] In one embodiment, the first functional area 121 has a second wall 1212. Specifically, the second wall 1212 is the sidewall of the first functional area 121 away from the through-hole. The second wall 1212 can be configured as an inclined surface, and the angle between the second wall 1212 and the bottom wall of the first functional area 121 is an acute angle. The first fan 141 can be positioned above the side near the second wall 1212. As a result, the wind blown by the first fan 141 forms a wind flow. When passing through the second wall 1212, the second wall 1212 can act as a wind guide, facilitating the flow of wind through the food to be thawed. Furthermore, the inclined second wall 1212 forms an acute angle with the bottom wall of the first functional area 121. When the wind flows through the second wall 1212 to the bottom wall, the backflow force is smaller than that generated by a right angle, thereby increasing the wind flow rate and, therefore, the thawing efficiency.

[0064] In one embodiment, the bottom wall of the first functional area 121 is used to place food to be thawed, and the bottom wall can be provided with a groove 2211, and the groove 2211 extends along the direction of the wind flow, for example Figure 11 The grooves 2211 extend in a longitudinal direction, and are spaced perpendicular to the direction of airflow. Specifically, the grooves 2211 are located below the food to be thawed, forming multiple channels beneath the food, thereby partially hollowing out the food. As a result, when airflow passes over the food, some of the airflow can flow through the bottom of the food, thawing the bottom of the food, preventing uneven thawing and avoiding partial thawing.

[0065] In one embodiment, the side walls of the first functional area 121 (i.e., the thawing area) are made of plastic, while the bottom wall is made of metal. The advantage of using plastic for the side walls is that plastic has low thermal conductivity, which reduces heat exchange between the side walls and the outside world, preventing condensation from forming on the inner walls of the first functional area 121. It also reduces overall weight and allows for smoother pushing and pulling. The advantage of using metal for the bottom wall is that metal has strong support, can support heavier food 3 (such as frozen meat), prevents plastic from being deformed under long-term pressure, and a metal (such as aluminum alloy) bottom wall accelerates cold transfer, ensuring even thawing of the food 3 at the bottom. It also facilitates the transfer of cold from the first functional area 121 to the second functional area 122.

[0066] In some embodiments, the refrigerator further includes a first drawer 21 and a second drawer 22, each open at the top. The first drawer 21 and the second drawer 22 are slidably mounted in the functional area 12, and the first drawer 21 and the second drawer 22 are vertically spaced apart. The refrigerator further includes a drawer cover 23, which is disposed at one end of the second drawer 22 in the front-to-back direction. The projected area of ​​the drawer cover 23 in the front-to-back direction is greater than the sum of the projected areas of the first drawer 21 and the second drawer 22 in the front-to-back direction.

[0067] It will be appreciated that the first drawer 21 and the second drawer 22 can be used to hold ingredients 3. The first drawer 21 and the second drawer 22 are slidably mounted in the functional area 12. A user can push and pull the drawer cover 23, causing the first drawer 21 and the second drawer 22 to slide, allowing the user to access and place ingredients 3. This drawer structure facilitates the user's access to and placement of ingredients 3. Furthermore, because the first drawer 21 and the second drawer 22 are arranged vertically spaced apart, they form two independent storage spaces. Therefore, different ingredients 3 can be stored separately in the first drawer 21 and the second drawer 22, facilitating isolated storage of the ingredients 3.

[0068] The drawer cover 23 is arranged at one end of the second drawer 22 along the front-to-back direction. The projected area of ​​the drawer cover 23 in the front-to-back direction is larger than the sum of the projected areas of the first drawer 21 and the second drawer 22 in the front-to-back direction. It not only has a certain shielding effect on the food 3 inside the drawer, improves the overall aesthetics of the refrigerator, but also makes it convenient for users to operate the drawer.

[0069] In some embodiments, the functional area 12 may also be provided with a sealing strip (not shown). This sealing strip is installed around the edge of the functional area 12 and arranged in a circular pattern. When the first drawer 21 and the second drawer 22 are fully accommodated within the functional area 12, the drawer cover 23 on the side closest to the functional area 12 will tightly contact the sealing strip. This improves the sealing effect of the functional area 12 and prevents the external ambient temperature from affecting the freshness of the food 3 within the functional area 12. The sealing strip is generally made of a rubber material with excellent elasticity and low-temperature resistance. Even in low-temperature environments, it remains soft and elastic, ensuring the sealing of the functional area 12, thereby maintaining a stable low-temperature environment in the functional area 12.

[0070] In one embodiment, the sealing structure of the refrigerator includes a fully sealed structure and a semi-sealed structure. The fully sealed structure is provided with a sealing strip. When the drawer is closed, the drawer cover 23 close to the functional area 12 will tightly stop the sealing strip, strictly isolating the functional area 12 from the other compartments of the refrigerator. The advantage is that it is conducive to precise temperature control, isolates external cold and heat interference, maintains a stable thawing temperature (such as 0~4℃), and is suitable for temperature-sensitive food 3. The semi-sealed structure is partially closed (such as without a sealing strip design). When the drawer is closed, it relies only on the sealing ability of the drawer cover 23. At this time, there is limited air exchange between the drawer and other areas of the refrigerator. The advantage is that it has a simple structure, is easy to push and pull, does not need to be deliberately closed tightly, is commonly used in popular refrigerators, and the sealing is less affected by frequent opening and closing.

[0071] In some of these examples, see Figure 10-11 The side wall of the functional area 12 is provided with a first track 211 extending in the horizontal direction, the upper edge of the second drawer 22 is provided with a second track 221 extending in the horizontal direction, and the first drawer 21 has a first sliding portion 212 matched with the first track 211 and a second sliding portion 222 matched with the second track 221. Figure 10 and Figure 11 As shown, the side wall of the functional area 12 is provided with a horizontal direction (such as Figure 11 The first track 211 extends in the front-to-back direction (as shown in FIG. Figure 10 The left and right directions shown in FIG. 1 protrude from the side wall of the functional area 12.

[0072] One of the embodiments, such as the present application Figure 10 As shown, there are two first rails 211, which are located on both sides of the first drawer 21 in the left and right directions. The first rails 211 can be installed on the side wall of the functional area 12 or can be integrally formed with the side wall of the functional area 12. Figure 11As shown, the upper edge of the second drawer 22 is provided with a second rail 221 extending in the horizontal direction. There are two second rails 221, which are respectively arranged on the left and right side edges of the second drawer 22. The second rails 221 can be integrally formed with the second drawer 22, or can be installed on the second drawer 22 by fasteners.

[0073] One of the embodiments, such as the present application Figure 10 and Figure 11 As shown, the first drawer 21 is provided with a first sliding portion 212 and a second sliding portion 222 at both ends along the front-back direction, wherein the first sliding portion 212 and the second sliding portion 222 are arranged in the height direction (as shown in FIG. Figure 11 The first drawer 21 is provided with two first sliding parts 212, one on each side of the first drawer 21 along the width direction, and the second drawer 21 is provided with two second sliding parts 222, one on each side of the first drawer 21 along the width direction. The two first sliding parts 212 are respectively engaged with the two first rails 211, and the two second sliding parts 222 are respectively engaged with the two second rails 221.

[0074] It can be understood that since the first track 211 is Figure 10 The first drawer 21 protrudes from the side wall of the functional area 12 (in the left and right directions shown), so the first drawer 21 can be overlapped on the first rail 211 via the first sliding portion 212, facilitating the installation and removal of the first drawer 21 and subsequent maintenance. For example, when it is necessary to place a larger food material 3 in the functional area 12, the first drawer 21 can be removed. At this time, the second drawer 22 forms a larger space, and the overall height of the space is increased to accommodate the larger food material 3. When the larger food material 3 needs to be thawed, since the larger food material 3 can be close to the output end of the thawing device, a better thawing effect can be achieved. When it is necessary to thaw smaller food material 3, the smaller food material 3 can be directly placed in a drawer close to the thawing device, so that the smaller food material 3 can receive the heat, airflow, etc. transmitted by the thawing device at a closer distance, and can be thawed better and faster.

[0075] In one embodiment, the first sliding portion 212 may be in sliding engagement or rolling engagement with the first track 211 , and the second sliding portion 222 may be in sliding engagement or rolling engagement with the second track 221 .

[0076] In one embodiment, the first sliding portion 212 slides with the first rail 211 and the second sliding portion 222 slides with the second rail 221. At this time, the first sliding portion 212 and the second sliding portion 222 can be integrally formed with the first drawer 21, which can reduce the device structure, simplify the production process, and facilitate installation and maintenance.

[0077] In one embodiment, the first sliding portion 212 is in rolling engagement with the first rail 211, and the second sliding portion 222 is in rolling engagement with the second rail 221. Since the rolling friction of the rolling engagement is less than the sliding friction of the sliding engagement, the first drawer 21 can be pushed and pulled more smoothly, making it easier for users to operate.

[0078] In one embodiment, the first sliding portion 212 is in sliding engagement with the first rail 211 , and the second sliding portion 222 is in rolling engagement with the second rail 221 , or the first sliding portion 212 is in rolling engagement with the first rail 211 , and the second sliding portion 222 is in sliding engagement with the second rail 221 .

[0079] In one embodiment, the bottom wall of the functional area 12 may be provided with a third track (not shown in the figure), and the bottom wall of the second drawer 22 may also be provided with a third sliding portion (not shown in the figure) that cooperates with the third track.

[0080] One of the embodiments, refer to this application Figure 11 As shown, the second rail 221 is provided with two downwardly recessed grooves 2211 spaced apart along the front-to-back direction, and the grooves 2211 are adapted to the shape of the second sliding portion 222 .

[0081] It is understood that when the second sliding portion 222 falls into the groove 2211, the sliding resistance increases, thereby limiting the relative sliding of the second sliding portion 222 and the second track 221. For example, when the second sliding portion 222 falls into the groove 2211, when the second drawer 22 is driven to slide by pushing and pulling the drawer cover 23, the second sliding portion 222 of the first drawer 21 falls into the groove 2211 of the second track 221 on the second drawer 22, thereby limiting the displacement of the first drawer 21 relative to the second drawer 22. In this way, the first drawer 21 and the second drawer 22 can be pushed and pulled synchronously.

[0082] In one embodiment, functional area 12 includes a double-layer drawer 120 or a double-layer drawer structure. The first functional area 121 is an upper drawer for thawing frozen foods, while the second functional area 122 is a lower drawer for storing partially frozen foods that do not require thawing. The upper drawer is removably attached to the lower drawer. When the upper drawer is attached, the upper layer serves as the thawing area, while the lower layer serves as the partially frozen area. This clear division of labor allows the refrigerator to perform both thawing and partially frozen functions simultaneously. When the upper drawer is removed, the lower drawer functions as the thawing area, suitable for thawing larger foods.

[0083] In some embodiments, the refrigerator further includes an air duct assembly, a first air duct 131 and a second air duct 132 are formed in the air duct assembly, the refrigerated compartment 1 and the evaporator 13 are spaced apart in the horizontal direction, and the air duct assembly is located between the evaporator 13 and the refrigerated compartment 1.

[0084] Specifically, the air duct assembly is a specific structure of a gap, and the air duct assembly is connected to the refrigeration area 11, the functional area 12, and the return air outlet 18. The evaporator 13 and the refrigeration compartment 1 are respectively arranged on both sides of the air duct assembly. The evaporator 13 is at least partially located in the air duct assembly. When the evaporator 13 is working normally, it will have a cooling effect in the air duct assembly. The second fan 142 blows part of the cold air in the air duct assembly into the refrigeration area 11. The refrigeration area 11 is provided with a refrigeration area air supply port 135. The cold air enters the refrigeration area 11 from the refrigeration area air supply port 135, refrigerating the refrigeration area 11 of the refrigerator, providing a low-temperature environment for the frozen food normally stored in the refrigeration area 11, and forming a first air path 131 in the refrigeration area 11. The circulating air in the refrigeration area 11 returns to the evaporator from the return air outlet 18. 13, repeat the heat exchange, and the cycle continues to provide a low-temperature environment for the refrigerated area 11; another part of the cold air blown out of the air duct assembly enters the functional area 12, forming a second air path 132 in the functional area 12, and the functional area 12 is provided with a functional area air supply port 136. The air in the second air path 132 enters the functional area 12 from the functional area air supply port 136, and is discharged after exchanging heat with the to-be-thawed food in the functional area 12. The functional area 12 is also provided with a functional area exhaust port 123 for discharging the air after heat exchange. The air discharged from the functional area exhaust port 123 returns to the evaporator 13 through the return air port 18, and exchanges heat with the evaporator 13 again, and the cycle continues.

[0085] In one embodiment, the air duct assembly further includes a first damper 133 and a second damper 134. The first damper 133 is mounted on the first air passage 131, and the second damper 134 is mounted on the second air passage 132. The first damper 133 is adapted to close or open the first air passage 131, while the second damper 134 is adapted to close or open the second air passage 132. The arrangement of the first damper 133 and the second damper 134 allows the first and second air passages 131, 132 to be opened or closed independently of each other. In other words, the refrigerated area 11 and the functional area 12 can operate independently of each other.

[0086] See also Figure 6 In one embodiment, the first damper 133 and the second damper 134 can be either single dampers or double dampers. The first air passage 131 is provided with a first branch 1311 and a second branch 1312. The first damper 133 is a single damper for blocking the first branch 1311; the second damper 134 is a double damper for blocking the second branch 1312 and the second air passage 132. Similarly, the second air passage 132 can also be provided with branches.

[0087] In some embodiments, the functional area 12 has a connecting hole connecting it to the refrigeration area 11. The air inlet side of the first fan 141 is connected to the connecting hole, and the air outlet side of the first fan 141 is directed toward the functional area 12. Thus, the connecting hole connects the spaces of the refrigeration area 11 and the thawing area, and the air circulation is not limited to the functional area 12, but forms a comprehensive circulating air path throughout the entire refrigeration compartment 1.

[0088] Specifically, at this time, there are two air paths in the functional area 12. One is starting from the evaporator 13, entering the refrigerated area 11 through the first air path 131 in the air duct assembly, and then entering the functional area 12 from the connecting hole; the other is starting from the evaporator 13, directly entering the functional area 12 through the second air path 132 in the air duct assembly, and then merging with the air path entering the functional area 12 from the connecting hole, and together returning to the evaporator 13 from the return air port 18, forming an air path circulation.

[0089] The advantages of this design lie in cooling capacity recycling and energy conservation. Specifically, connecting the two zones eliminates the energy consumption of a separate thawing zone, preventing excessive heating of food 3 and the resulting microbial risks. Furthermore, it reduces compressor load, allowing the two zones to share a cooling source, reducing energy consumption from frequent system starts and stops, and avoiding wasteful overcooling. Excess cooling capacity in the thawing zone can be returned to the refrigerated zone 11, minimizing cooling losses.

[0090] In one embodiment, the functional area 12 and the refrigerated area 11 are not connected by a connecting hole. The two areas are independently designed and do not interfere with each other. Air circulation in the functional area 12 occurs only within the functional area 12, starting from the evaporator 13, passing through the second air path 132 within the air duct assembly and directly entering the functional area 12. The air then returns to the evaporator 13 through the return air vent 18, completing the air circulation. This design completely isolates the refrigerated area 11 from the thawing area and is particularly suitable for applications where food safety, energy efficiency, and functional independence are crucial. The advantages of this design include physical isolation of bacteria and odors, preventing blood, fishy odors, or potential bacteria (such as Listeria) generated by thawing fresh produce (such as meat and seafood) from being transmitted through the air or contact to the ready-to-eat food in the refrigerated area 11. Furthermore, it allows for precise temperature control and optimized thawing performance, preventing cold air interference. When the thawing area heats up rapidly, the temperature of the refrigerated area 11 will not fluctuate due to cold air backflow.

[0091] In one embodiment, the first fan 141 is rotatably installed in the functional area 12, and the first fan 141 is used for defrosting.

[0092] Specifically, the food to be thawed is placed in the functional area 12, and the first fan 141 is blowing air to thaw the food to be thawed. Due to the different volumes and placement of the food, if it is necessary to ensure that the first fan 141 can face the thawed food, the direction of the first fan 141 needs to be adjustable to ensure that the first fan 141 is always blowing air towards the food to be thawed, thereby improving the thawing efficiency.

[0093] In one embodiment, the functional area 12 has an upper wall surface, the communication hole is provided on the upper wall surface, and the first functional area 121 and the second functional area 122 are arranged vertically spaced apart. The relative positions of the first functional area 121 and the second functional area 122 can have various structures, such as left-right arrangement, front-back arrangement, and top-bottom arrangement. Preferably, the first functional area 121 and the second functional area 122 are arranged vertically spaced apart, and can be arranged in the top-bottom direction.

[0094] In some embodiments, the refrigerator also includes a door body 4, which is used to enclose the refrigeration compartment. The functional area 12 includes a front side wall close to the door body 4 and a rear side wall close to the air duct assembly. The air outlet of the second air path 132 passes through the rear side wall and is connected to the functional area 12; the first fan 141 is arranged on a side of the top wall of the functional area 12 close to the rear side wall, and the angle between the blowing direction of the first fan 141 and the horizontal direction is an acute angle.

[0095] Specifically, first wall 1211 is the front sidewall, on which a drawer cover 23 is provided. First fan 141 is disposed on the side of the top wall of functional area 12 near the rear sidewall. Second wall 1212 is the rear sidewall, and second wall 1212 is the sidewall of first functional area 121 away from the through-hole. Second wall 1212 can be configured as an inclined surface, with the angle between second wall 1212 and the bottom wall of first functional area 121 forming an acute angle. First fan 141 can be disposed above the side near second wall 1212. Because the blowing direction of first fan 141 forms an acute angle with the horizontal direction, the air blown by first fan 141 forms a wind flow. When passing through second wall 1212, second wall 1212 can act as a wind guide, facilitating the flow of air through the food to be thawed. Moreover, the inclined second wall 1212 forms an acute angle with the bottom wall of the first functional area 121. When the wind flows through the second wall 1212 to the bottom wall, the backflow wind force generated is smaller than that generated at a right angle, which facilitates increasing the wind flow rate, that is, improving the thawing efficiency.

[0096] In some embodiments, the refrigerator further comprises a sensing device and a control device. The sensor comprises at least a humidity sensor and a temperature sensor.

[0097] In one embodiment, the sensing device is arranged inside the cold storage compartment 1, and the sensing device can be a temperature sensor or an infrared sensor. When the sensing device is a temperature sensor, the evaporator 13 is provided with an evaporator temperature sensor 17 for detecting the temperature of the evaporator 13, so as to facilitate temperature control of the evaporator 13; the cold storage area 11 is provided with a cold storage area temperature sensor 15 for detecting the temperature of the cold storage area 11; the functional area 12 is provided with a functional area temperature sensor 16 for detecting the temperature of the functional area 12. Specifically, the sensing device can be arranged in the cold storage compartment 1 and located below the food to be thawed. When the sensing device is an infrared sensor, the sensing device can be arranged in the cold storage compartment 1 and located around the food to be thawed. The control device is connected to the sensing device, and the control device is connected to the refrigeration system of the refrigerator.

[0098] In one embodiment, the refrigerator further includes a humidity sensor adapted to detect the humidity within the refrigerating compartment 1, and to enable or disable the first air path 131, the second air path 132, and the first fan 141 via a controller based on the detected humidity within the refrigerating compartment 1. For example, the humidity sensor may be installed within the refrigerating compartment 1 to detect the humidity within the refrigerating compartment 1.

[0099] In one embodiment, the humidity sensor includes a first humidity sensor and a second humidity sensor. The first humidity sensor is installed in the functional area 12 and is suitable for detecting the humidity in the functional area 12; the second humidity sensor is installed in the refrigerated area 11 and is suitable for detecting the humidity in the refrigerated area 11.

[0100] See also Figure 12 According to an embodiment of the present invention, a thawing and humidification control method is proposed and applied to the refrigerator in any of the above embodiments to thaw the food 3 to be thawed in the functional area 12. The embodiment of the present invention is described using a refrigerator as an example. The thawing and humidification control method can also be applied to other refrigeration equipment, such as freezers and fresh-keeping cabinets. Specifically, the thawing and humidification control method of the embodiment of the present invention includes the following steps:

[0101] S1. Receive a thawing instruction.

[0102] Specifically, the user can input a defrost instruction through the interactive module, and after the refrigerator receives the defrost instruction, it controls the functional area 12 of the refrigerator to enter the defrost mode.

[0103] In other embodiments of the present invention, the way to receive the defrost instruction may be that the wireless communication module receives the control instruction sent from the cloud, it may be the voice command analyzed by the voice recognition module, or it may be the defrost instruction input by the user through the user interface on the refrigeration equipment.

[0104] The thawing instruction may include a thawing duration. The thawing mode may have corresponding parameters, such as a fast thawing mode, a balanced thawing mode, and a custom thawing mode.

[0105] S2 , controlling the evaporator 13 to close, stopping cooling, closing the first air path 131 , and turning on the first fan 141 .

[0106] Specifically, upon receiving the defrost command, the refrigeration system is shut down, that is, the controller controls the evaporator 13 to close, stopping refrigeration. At this time, the first air path 131 is closed, and the first fan 141 is turned on, so that the first fan 141 drives the high-humidity air in the refrigerated area 11 into the functional area 12.

[0107] It should be noted that after the evaporator 13 stops refrigeration, the refrigerated area 11 loses its active cooling ability, and the ambient heat slowly penetrates through the outside of the refrigerator, causing the humidity in the refrigerated area 11 to increase slightly. Since the first fan 141 is turned on and forced air circulation is performed, the heat in the refrigerated area 11 and the functional area 12 is evenly distributed. Therefore, the temperature of the refrigerated area 11 will not rise too high, and will not have too much impact on the food in the refrigerated area 11. The surface of the frozen food in the functional area 12 is protected by frost and will not dry out in a short period of time. In addition, after the first fan 141 is turned on, the temperature of the refrigerated area 11 is slightly higher than the temperature when the refrigeration system is working, which increases the humidity in the refrigerated area 11. The first fan 141 drives the air circulation in the refrigerated compartment 1, thereby increasing the humidity in the functional area 12.

[0108] S3. Open the first air duct 131.

[0109] Wherein, step S3 may be executed while step S2 is executed; or step S3 may be executed after step S2 is executed.

[0110] Specifically, when the first air passage 131 is opened, the second air passage 132 is in a closed state. Since the evaporator 13 stops cooling, the first air passage 131 is opened, that is, the first air passage 131 can supply air. It should be noted that a second fan 142 is provided in the refrigeration air duct, and the second fan 142 is located on the side of the evaporator 13 away from the return air inlet 18. The opening of the first air passage 131 in the embodiment of the present invention indicates that the second fan 142 is opened, and the air flow in the refrigeration air duct is driven by the second fan 142. The circulating gas entering the cavity where the evaporator 13 is located from the return air inlet 18 of the refrigeration air duct exchanges heat with the frost on the surface of the evaporator 13, promoting the melting of the frost on the surface of the evaporator 13, thereby increasing the air humidity. At this time, the first air passage 131 is in an open state, and the high-humidity air located at the evaporator 13 is transported to the refrigeration area 11 through the second fan 142, causing the humidity of the refrigeration area 11 to rise rapidly.

[0111] S4. Detecting the humidity of the refrigerating compartment 1. The humidity in the refrigerating compartment 1 may be detected by a humidity sensor.

[0112] According to some embodiments of the present invention, the humidity sensor includes a first humidity sensor and a second humidity sensor. The first humidity sensor is installed in the functional area 12, and the first humidity sensor is suitable for detecting the humidity in the functional area 12; the second humidity sensor is installed in the refrigerated area 11, and the second humidity sensor is suitable for detecting the humidity in the refrigerated area 11.

[0113] In some specific examples, the functional area 12 can be an enclosed space, the first humidity sensor is arranged inside the functional area 12 and close to the inner top of the functional area 12, and the first humidity sensor is arranged on the air outlet side of the refrigeration area 11. By reasonably arranging the positions of the first humidity sensor and the first humidity sensor, the humidity values ​​of the refrigeration area 11 and the functional area 12 can be accurately detected, and then high-humidity air is sent into the functional area 12 according to the detected humidity value, so that the humidity of the functional area 12 is stabilized at a high level of fluctuation.

[0114] According to other embodiments of the present invention, multiple humidity sensors may also be provided in the refrigerated area 11 and the functional area 12. Specifically, multiple first humidity sensors are provided in the functional area 12, and the multiple first humidity sensors are evenly distributed in the functional area 12; multiple second humidity sensors are provided in the refrigerated area 11, and the multiple second humidity sensors are evenly distributed in the refrigerated area 11.

[0115] For example, the average value of the humidity values ​​detected by multiple first humidity sensors is used as the humidity detected by the functional area 12; the average value of the humidity values ​​detected by multiple second humidity sensors is used as the humidity detected by the refrigerated area 11, further ensuring that the humidity value detected by the refrigerated compartment 1 is more accurate.

[0116] In other examples, the minimum value of the humidity values ​​detected by the multiple first humidity sensors is the humidity in the functional area 12 , and the minimum value of the humidity values ​​detected by the multiple second humidity sensors is the humidity in the refrigeration area 11 .

[0117] S41. When it is detected that the humidity of the refrigerated area 11 is greater than the first preset humidity, the second air path 132 is opened and the first fan 141 remains in the on state.

[0118] Specifically, the first preset humidity is H1. When the second humidity sensor detects that the humidity in the refrigerated area 11 is greater than the first preset humidity H1, the second air duct 132 is opened, and the first fan 141 remains on. After the evaporator 13 stops cooling, the refrigerated area 11 exchanges heat with the ambient air, causing the temperature of the refrigerated area 11 to rise. Frost on the evaporator 13 is heated by the refrigerated air and begins to melt, resulting in a significant increase in humidity. When the humidity requirement for the functional area 12 is met, high-humidity air begins to be delivered to the functional area 12.

[0119] According to some embodiments of the present invention, the first preset humidity is greater than or equal to 90%. That is, when the humidity of the refrigerated area 11 is detected to be greater than or equal to 90%, it indicates that the humidity requirement of the functional area 12 is met, and high-humidity air is started to be supplied to the functional area 12.

[0120] S42: When it is detected that the humidity of the functional area 12 is greater than the second preset humidity, the second air passage 132 is closed.

[0121] Specifically, the second preset humidity is H2, and the first humidity sensor detects the humidity of the functional area 12. Moreover, the humidity of the functional area 12 should not be too high. To prevent condensation inside the functional area 12, when the humidity of the functional area 12 is detected to be greater than the second preset humidity H2, the second air path 132 is closed.

[0122] According to some embodiments of the present invention, the second preset humidity is greater than or equal to 98%. That is, when the humidity of the air in the functional area 12 is detected to be greater than or equal to 98%, it indicates that the humidity inside the functional area 12 has reached saturation. To avoid condensation in the functional area 12, the humidity in the functional area 12 should not be too high, and the second air path 132 is closed, and further increase of humidity in the functional area 12 is stopped.

[0123] S43. When it is detected that the humidity of the functional area 12 is lower than the third preset humidity, execute step S2 until the thawing is completed.

[0124] Specifically, the third preset humidity is H3. When the first humidity sensor detects that the humidity of functional area 12 is greater than the third preset humidity H3, step S2 is executed until thawing is completed. Due to the closure of second air duct 132, the temperature of functional area 12 slowly rises. Furthermore, due to the good sealing performance of functional area 12, without additional humidity replenishment, the humidity will continue to decrease during the thawing process. Therefore, when the humidity of functional area 12 is detected to be below a certain value, step S2 can be started in advance to prepare high-humidity air and deliver high-humidity air to functional area 12 at any time, thereby improving thawing efficiency.

[0125] According to some embodiments of the present invention, the first preset humidity is lower than the third preset humidity, and the second preset humidity is higher than the third preset humidity, that is, the third preset humidity is within the range of 90%-98%. When the humidity of the functional area 12 is detected to be between 90%-98%, step S2 is executed until the thawing is completed.

[0126] S5. After the defrosting is completed, the evaporator 13 is controlled to open and the refrigeration is resumed.

[0127] According to some embodiments of the present invention, a second temperature sensor may be provided in the functional area 12 to obtain the temperature within the functional area 12. When the temperature of the food 3 to be thawed reaches a set temperature threshold, the food 3 to be thawed is determined to be thawed, i.e., thawing is complete. The set temperature threshold may be determined based on actual conditions.

[0128] According to other embodiments of the present invention, the thawing ends after the set thawing time is completed.

[0129] For example, before defrosting, the user can enter a set defrost time on the refrigerator's control panel or in a program associated with the refrigerator. After the set defrost time is complete, the defrost automatically ends. Furthermore, the user can be automatically notified when the defrost is complete, eliminating the need to constantly check the defrost status, thus improving the user experience.

[0130] According to the defrosting and humidification control method proposed in an embodiment of the present invention, when the evaporator 13 is turned on and in the cooling mode, a certain amount of frost will accumulate on its surface. When the evaporator 13 is turned off and cooling stops, the second fan 142 remains on, driving air circulation within the refrigeration duct and promoting the melting of the frost on the surface of the evaporator 13. At this time, the water content in the air increases, and the air humidity is rapidly raised. The first fan 141 then delivers high-humidity air to the functional area 12, allowing the food to be thawed in this area to thaw in a low-temperature, high-humidity environment. The residual cooling from the evaporator 13 prevents a significant increase in the temperature of the refrigeration area 11. Furthermore, with the addition of a humidity sensor, high-humidity air can be precisely and regularly delivered to the functional area 12, maintaining a stable high humidity level. The humidity sensor controls the humidity in the functional area 12, making it more intelligent and accurate. This ensures that the humidity in the functional area 12 remains between 90% and 98% during the thawing process, preventing the surface of the thawed food 3 from drying out and condensation from forming in the functional area 12. In addition, the thawing and humidification control method according to the embodiment of the present invention can not only increase the humidity of the functional area 12 , but also increase the humidity of the refrigeration area 11 , thereby improving the freshness preservation effect of the refrigeration compartment 1 .

[0131] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0132] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A refrigerator, characterized in that: include: A refrigerated compartment, wherein the refrigerated compartment is provided with a refrigerated area and a functional area, and the functional area is provided with a first fan; A refrigeration air duct, wherein an evaporator is installed in the refrigeration air duct, the refrigeration air duct having an air supply path arranged on one side of the evaporator and an air return port arranged on the other side of the evaporator, the refrigeration area and the functional area are both connected to the return port, the refrigeration air duct further comprises a second fan, the second fan is located on the side of the evaporator away from the return port, the air supply path comprises a first air path and a second air path, the first air path is connected to the refrigeration area, and the second air path is connected to the functional area; the evaporator is suitable for humidifying food to be thawed; The functional area includes a first functional area and a second functional area, and the second air passage, the first functional area and the second functional area are connected in sequence; The first functional area is a thawing functional area, and the second functional area is a slightly frozen functional area, and the slightly frozen functional area is used to keep the frozen food in a slightly frozen state; During defrosting, the first functional area is in a defrosting state, the second functional area is in a slightly freezing state, the evaporator is in a shutdown state, and the airflow of the second air path passes through the evaporator, the first functional area, the second functional area and the return air outlet in sequence; the airflow passes through the return air outlet and returns to the evaporator, forming an air path circulation.

2. The refrigerator according to claim 1, wherein: The first functional area has a first wall surface, the first wall surface is provided with a through hole, and the second functional area is connected to the first functional area through the through hole.

3. The refrigerator according to claim 2, characterized in that The first functional area and the second functional area are arranged vertically with an interval, the first functional area has a side wall and a bottom wall, and the first wall surface is the side wall of the first functional area.

4. The refrigerator according to claim 1, wherein The functional area is separated from the refrigerated area by a sealing partition, at least part of the sealing partition has an interlayer filled with heat-insulating material.

5. The refrigerator according to claim 1, wherein It also includes an air duct assembly, the first air duct and the second air duct are formed in the air duct assembly, the refrigerated compartment and the evaporator are spaced apart in the horizontal direction, and the air duct assembly is located between the evaporator and the refrigerated compartment.

6. The refrigerator according to claim 5, characterized in that The air duct assembly further includes a first damper and a second damper, wherein the first damper is installed in the first air passage, and the second damper is installed in the second air passage.

7. The refrigerator according to any one of claims 1 to 3, characterized in that: The functional area has a connecting hole connected to the refrigeration area, the air inlet side of the first fan is connected to the connecting hole, and the air outlet side of the first fan faces the functional area.

8. The refrigerator according to claim 7, characterized in that The first fan is rotatably installed in the functional area.

9. The refrigerator according to claim 7, characterized in that The functional area has an upper wall surface, the communication hole is provided on the upper wall surface, and the first functional area and the second functional area are arranged vertically with an interval.

10. The refrigerator according to claim 6, characterized in that It also includes a door body, which is used to enclose the refrigerated compartment. The functional area includes a front side wall close to the door body and a rear side wall close to the air duct assembly. The air outlet of the second air duct passes through the rear side wall and is connected to the functional area. The first fan is arranged on a side of the top wall of the functional area close to the rear side wall, and the angle between the blowing direction of the first fan and the horizontal direction is an acute angle.

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