Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and aims to solve the problem that the use experience of a user is reduced due to the fact that the food material freezing process of an existing air-cooled refrigerator is slow. The utility model provides a refrigerator which comprises a refrigerator body, a refrigerator door and a refrigerator door, the freezing drawer is arranged in the freezing chamber, a drawer cavity is formed in the freezing drawer, an air-cooling cold air supply duct is arranged between the top of the freezing drawer and the top wall of the freezing chamber, and an upward object taking opening is formed in the top of the drawer cavity; and the circulating fan is arranged in the air-cooling cold air supply duct, an air outlet of the circulating fan faces the drawer cavity, and the circulating fan is used for promoting frozen air flow in the air-cooling cold air supply duct to flow into the drawer cavity in a starting state. The utility model solves the technical problems.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a refrigerator. Background Technology

[0002] With the development of science and technology, people's living standards are constantly improving. Refrigerator technology is also constantly being iterated and updated to meet people's needs.

[0003] Currently, in existing technology, the freezer compartment of a frost-free refrigerator is equipped with a freezer drawer. Freezing airflow is forced to circulate around the freezer drawer to freeze the food inside. This way, the freezing airflow does not directly contact the food inside the drawer, and the airflow does not blow directly onto the food, thus better preventing moisture loss. However, this freezing method is slow and cannot meet the storage needs of some foods that require rapid freezing (such as seafood), thereby failing to meet user needs and resulting in a reduced user experience. Utility Model Content

[0004] One objective of this invention is to provide a refrigerator that can solve at least one of the technical defects in the prior art.

[0005] A further objective of this invention is to enable the air-cooled refrigerator to quickly freeze food, thereby meeting users' needs for food to be frozen quickly and improving the user experience.

[0006] Specifically, this utility model provides a refrigerator, comprising:

[0007] The cabinet contains a freezer compartment.

[0008] A freezer drawer is installed in the freezer compartment. It has a drawer cavity inside, and a cold air supply duct is installed between its top and the top wall of the freezer compartment. The top of the drawer cavity has an upward-facing access opening.

[0009] A circulating fan is installed inside the air-cooled cooling duct, with its air outlet facing the drawer cavity. When the fan is running, it is used to encourage the flow of refrigerant air from the air-cooled cooling duct into the drawer cavity.

[0010] Furthermore, a cooling air outlet is provided at the rear of the freezer compartment and at the rear end of the air-cooled cooling duct. The cooling air outlet is positioned facing forward and is used to provide cooling airflow into the air-cooled cooling duct both when the circulating fan is running and when it is stopped.

[0011] Furthermore, the circulating fan is installed corresponding to the cooling air outlet.

[0012] Furthermore, the circulating fan is positioned at the center of the bottom surface of the drawer cavity.

[0013] Furthermore, the refrigerator includes:

[0014] The top cover is located at the access opening, between the drawer cavity and the air-cooled cooling duct. It is used to restrict the flow of refrigerant air into the drawer cavity when the circulating fan is stopped. It is equipped with a circulating air inlet, and a humidifying air outlet that connects to the drawer cavity is opened on it and / or on the freezer drawer. The circulating fan is located at the circulating air inlet. When the circulating fan is running, the circulating fan is used to make the refrigerant air in the air-cooled cooling duct flow into the drawer cavity through the circulating air inlet, and to discharge the refrigerant air from the drawer cavity through the humidifying air outlet when the circulating fan is running.

[0015] Furthermore, the circulating fan includes:

[0016] A fan bracket is provided at the circulating air inlet and includes a fixing part located in the middle, which is located inside the drawer cavity.

[0017] The drive motor is mounted on the fixed part;

[0018] A circulating fan is connected to the drive shaft of the drive motor.

[0019] Furthermore, cooling air vents are provided at the rear of the freezer compartment and at the rear end of the air-cooled cooling duct, the cooling air vents being used to supply cooling airflow into the air-cooled cooling duct; and,

[0020] The height of the freezer drawer corresponding to the position of the circulating fan in the front-to-back direction is higher than the height of the rear end of the freezer drawer; and,

[0021] The height of the top cover corresponding to the position of the circulating fan in the front-to-back direction is higher than the height of the rear end of the top cover.

[0022] Furthermore, the humidifying air outlet is located on at least one of the top cover, the front end of the freezer drawer, the rear end of the freezer drawer, the left end of the freezer drawer, and the right end of the freezer drawer.

[0023] Furthermore, the humidifying air outlet includes:

[0024] The air circulation vent is located at the front of the freezer drawer; and,

[0025] The cabinet contains an evaporator chamber for housing the refrigerator's evaporator and a return air duct connecting to the evaporator chamber; and,

[0026] The return air duct includes a return air section located in front of the freezer drawer, and a recirculation air outlet connected to the return air section to allow the refrigerant airflow that flows out of the drawer cavity through the recirculation air outlet to flow back into the evaporator chamber.

[0027] Furthermore, the humidifying air outlet includes:

[0028] The air outlet is located on the top cover and connects to the air-cooled supply duct; furthermore...

[0029] The cabinet contains an evaporator chamber for housing the refrigerator's evaporator and a return air duct connecting to the evaporator chamber; and,

[0030] The return air duct includes a return air section located in front of the freezer drawer. The front end of the air-cooled supply air duct is connected to the return air section to allow the refrigerant airflow that flows out of the drawer cavity through the cover air outlet and the refrigerant airflow in the air-cooled supply air duct to flow back into the evaporator chamber.

[0031] This refrigerator, by incorporating a circulating fan within its air-cooling duct, with the fan's outlet facing the freezer drawer cavity, allows the circulating fan to draw the freezing airflow from the duct into the drawer cavity when activated. This facilitates rapid freezing of the food within the drawer. Therefore, this refrigerator enables rapid freezing of food, meeting users' needs for quick freezing and enhancing the user experience.

[0032] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0033] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0034] Figure 1 This is a schematic diagram of the structure of a refrigerator according to an embodiment of the present invention;

[0035] Figure 2 This is one of the cross-sectional schematic diagrams of a refrigerator according to an embodiment of the present utility model;

[0036] Figure 3 This is a schematic diagram showing the connection of the freezer drawer, top cover, and air duct plate in a refrigerator according to an embodiment of the present invention;

[0037] Figure 4 This is an exploded schematic diagram of the circulating fan in a refrigerator according to an embodiment of the present invention;

[0038] Figure 5 This is one of the structural schematic diagrams of a freezer drawer in a refrigerator according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram showing the connection between the cooling guide and the heat exchanger in a refrigerator according to an embodiment of the present invention;

[0040] Figure 7 yes Figure 6 Enlarged diagram of section "A" in the image;

[0041] Figure 8 This is one of the cross-sectional schematic diagrams of a cold-conducting plate in a refrigerator according to an embodiment of the present invention;

[0042] Figure 9 This is a second cross-sectional schematic diagram of the cold guide plate in a refrigerator according to an embodiment of the present utility model;

[0043] Figure 10 This is a third cross-sectional schematic diagram of the cold guide plate in a refrigerator according to an embodiment of the present invention;

[0044] Figure 11 This is a cross-sectional schematic diagram of the freezer drawer in a refrigerator according to an embodiment of the present invention;

[0045] Figure 12 yes Figure 11 Enlarged diagram of section "B" in the image;

[0046] Figure 13 yes Figure 11 Enlarged diagram of section "C" in the image;

[0047] Figure 14 This is a second schematic diagram of the structure of the freezer drawer in a refrigerator according to an embodiment of the present invention;

[0048] Figure 15 This is the third schematic diagram of the structure of the freezer drawer in a refrigerator according to an embodiment of the present invention;

[0049] Figure 16 This is an exploded schematic diagram of a refrigerator according to an embodiment of the present invention;

[0050] Figure 17 This is a second cross-sectional schematic diagram of a refrigerator according to an embodiment of the present utility model;

[0051] Figure 18 This is a third cross-sectional schematic diagram of a refrigerator according to an embodiment of the present utility model;

[0052] Figure 19 This is a fourth cross-sectional view of a refrigerator according to an embodiment of the present invention. Detailed Implementation

[0053] In the description of this embodiment, it should be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0054] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically stated, this indicates that other features are not excluded and may be further included.

[0055] Unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] Unless otherwise specified, all terms (including technical and scientific terms) used in the description of these embodiments have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0058] In the description of this embodiment, the reference to terms such as "embodiment," "implementation," etc., means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The following is combined Figures 1 to 19 The refrigerator of this embodiment will be described in detail below. Figure 14 and Figure 15 The schematic diagram of the cooling and heat exchange components is omitted. Figure 17 , Figure 18 and Figure 19 The blank arrows in the diagram illustrate the flow path and direction of the cooling airflow.

[0060] Reference Figure 1 , Figure 2 and Figure 5 In this embodiment, the refrigerator includes a cabinet 100, a freezer drawer 200, and a circulating fan 300.

[0061] The cabinet 100 is equipped with a freezer compartment 110.

[0062] The freezer drawer 200 is located inside the freezer compartment 110. The freezer drawer 200 has a drawer cavity 210. A cold air supply duct 120 is provided between the top of the freezer drawer 200 and the top wall of the freezer compartment 110. The top of the drawer cavity 210 has an upward-facing access opening 220.

[0063] The circulating fan 300 is installed in the air-cooled cooling duct 120, and the fan outlet of the circulating fan 300 faces the drawer cavity 210. The circulating fan 300 is used to cause the refrigerant air in the air-cooled cooling duct 120 to flow into the drawer cavity 210 when it is in the start-up state.

[0064] Since the refrigerator in this embodiment is equipped with a circulating fan 300 in the air-cooled cooling duct 120, and the air outlet of the circulating fan 300 is directed toward the drawer cavity 210 of the freezer drawer 200, the circulating fan 300 can, when in the starting state, cause the freezing airflow in the air-cooled cooling duct 120 to flow into the drawer cavity 210, so that the food in the drawer cavity 210 can be frozen quickly.

[0065] Therefore, this embodiment enables the air-cooled refrigerator to freeze food quickly, meeting the user's need for food to be frozen quickly and improving the user experience.

[0066] Reference Figure 2 and Figure 3 In this embodiment, a cooling air outlet 130 is provided at the rear of the freezer compartment 110 and at the rear end of the air-cooled cooling duct 120. The cooling air outlet 130 is used to provide a cooling airflow into the air-cooled cooling duct 120.

[0067] Reference Figure 2 and Figure 3 In this embodiment, the cooling air outlet 130 is arranged facing forward, and the cooling air outlet 130 is used to provide cooling airflow into the air-cooled cooling duct 120 in both the starting and stopping states of the circulating fan 300.

[0068] Understandably, since the freezing airflow is forward and the circulating fan 300 is located in front of the cooling air inlet 130, the smoothness of the airflow path between the cooling air inlet 130 and the circulating fan 300 can be ensured, so that the air-cooled refrigerator can freeze food quickly and further ensure the user experience.

[0069] Furthermore, by setting the cooling air vent 130 forward and positioning it above the freezer drawer 200, when the circulating fan 300 is stopped, the freezing airflow will flow at the top of the freezer drawer 200 to promote the freezing of the food in the drawer cavity 210. There is little or no freezing airflow into the drawer cavity 210, which better ensures that the food does not lose moisture, thus achieving moisturizing freezing in the air-cooled refrigerator.

[0070] Therefore, the refrigerator in this embodiment can switch between fast freezing and moist freezing functions on the same freezer drawer 200 by starting or stopping the circulating fan 300. This allows the same freezer drawer 200 to meet the user's need for food to be frozen quickly, while also taking into account the user's need for food to be frozen without losing moisture, greatly improving the user experience.

[0071] Reference Figure 2 and Figure 3 In this embodiment, the circulating fan 300 is provided with a corresponding cooling air outlet 130.

[0072] It is understandable that by matching the circulating fan 300 with the cooling air outlet 130, the flow rate of the freezing air entering the drawer cavity 210 can be guaranteed, while ensuring the smoothness of the air path between the cooling air outlet 130 and the circulating fan 300, so as to enable the frost-free refrigerator to freeze food quickly and further ensure the user experience.

[0073] Reference Figure 2 and Figure 3 In this embodiment, the circulating fan 300 is located at the center of the bottom surface of the drawer cavity 210.

[0074] Understandably, by placing the circulating fan 300 at the corresponding position in the middle of the bottom surface of the drawer cavity 210, the freezing airflow entering the drawer cavity 210 can flow through all areas of the drawer cavity 210 as much as possible, ensuring the consistency of the freezing degree of the food in the drawer cavity 210, improving the freezing quality of the food in the refrigerator, and enhancing the user experience.

[0075] Furthermore, in existing technology, to completely prevent the flow of freezing air into the drawer cavity 210, ensuring that the freezing airflow only flows around the freezer drawer 200 to further prevent moisture loss from food and greatly preserve its quality, the refrigerator drawer cavity 210 is designed to be relatively sealed relative to the freezing airflow. For example, a top cover 400 is provided at the access opening 220 of the freezer drawer 200; or, for example, the freezer drawer 200 is designed as a cylindrical structure with a front-opening access opening 220, which only opens when the freezer compartment 110 door is opened. However, correspondingly, the relatively sealed design of the drawer cavity 210 further delays the freezing process of food, further reducing the user experience.

[0076] Reference Figure 2 and Figure 3 In this embodiment, the refrigerator includes a top cover 400.

[0077] The top cover 400 is located at the retrieval opening 220. The top cover 400 is between the drawer cavity 210 and the air-cooled cooling duct 120. The top cover 400 is used to restrict the flow of refrigerant air into the drawer cavity 210 when the circulating fan 300 is stopped.

[0078] The top cover 400 is provided with a circulating air inlet 410, and the top cover 400 and / or the freezer drawer 200 are provided with a humidifying air outlet 500 that communicates with the drawer cavity 210. The circulating fan 300 is provided at the circulating air inlet 410. The circulating fan 300 is used to cause the refrigerant air in the air-cooled cooling duct 120 to flow into the drawer cavity 210 through the circulating air inlet 410 when the circulating fan 300 is running, and to discharge the refrigerant air in the drawer cavity 210 through the humidifying air outlet 500 when the circulating fan 300 is running.

[0079] Understandably, when a top cover 400 is provided at the drawer access opening 220, a circulating air inlet 410 can be provided on the top cover 400, and a humidifying air outlet 500 can be provided on the freezer drawer 200 and / or the top cover 400, with the circulating fan 300 positioned at the circulating air inlet 410. Furthermore, when the circulating fan 300 is activated, it can continuously draw the freezing airflow from the air-cooled cooling duct 120 into the drawer cavity 210, allowing the food inside the drawer cavity 210 to freeze quickly, meeting the user's need for rapid freezing and ensuring a better user experience.

[0080] Furthermore, when the circulating fan 300 is not working, the freezing airflow in the air-cooled cooling duct 120 will not be drawn into the drawer cavity 210 by the circulating fan 300, and the top cover 400 can effectively restrict the flow of freezing airflow into the drawer cavity 210, so that the refrigerator can effectively ensure that the food does not lose moisture when freezing food, that is, to achieve moisturizing freezing in the air-cooled refrigerator.

[0081] Therefore, the refrigerator in this embodiment can quickly freeze food, and by starting or stopping the circulating fan 300, it can switch between quick freezing and moist freezing functions on the same freezer drawer 200. This allows the same freezer drawer 200 to meet the user's need for food to be quickly frozen, as well as the user's need for food to be frozen without losing moisture, thereby greatly improving the user experience.

[0082] Reference Figure 2 and Figure 4 In this embodiment, the circulating fan 300 includes a fan bracket 310, a drive motor 320, and a circulating fan 330.

[0083] The fan bracket 310 is located at the circulating air inlet 410. The fan bracket 310 includes a fixing part 311 located in the middle, which is located inside the drawer cavity 210.

[0084] The drive motor 320 is mounted on the fixed part 311.

[0085] The circulating fan 330 is connected to the drive shaft of the drive motor 320.

[0086] It is understandable that by setting the fixing part 311 of the fan bracket 310 for fixing the circulating fan 330 and the drive motor 320 inside the drawer cavity 210, the flow of the refrigerant airflow in the air-cooled cooling duct 120 will not be affected, thus ensuring the smooth flow of the refrigerant airflow around (top) the freezer drawer 200.

[0087] Furthermore, the construction of the circulating fan 330 is achieved through the arrangement of the fan bracket 310, the drive motor 320, and the circulating fan 330, ensuring the user's experience.

[0088] Reference Figure 2 In this embodiment, the height H of the freezer drawer 200 corresponding to the position of the circulating fan 300 in the front-back direction is higher than the height L of the rear end of the freezer drawer 200; and the height of the top cover 400 corresponding to the position of the circulating fan 300 in the front-back direction is higher than the height of the rear end of the top cover 400.

[0089] Understandably, the top of the freezer drawer 200 and the top cover 400 are tilted downwards from front to back to ensure the smooth flow of the frozen air from the cooling vent 130 and the smooth airflow between the cooling vent 130 and the circulating fan 300. This allows the frost-free refrigerator to freeze food quickly and further enhances the user experience.

[0090] Reference Figure 3 In this embodiment, the humidifying air outlet 500 is disposed on at least one of the top cover 400, the front end of the freezer drawer 200, the rear end of the freezer drawer 200, the left end of the freezer drawer 200, and the right end of the freezer drawer 200.

[0091] Understandably, the specific location of the humidifying air outlet 500 can be set at any position within the humidifying air outlet 500, or on the top cover 400, depending on the return air requirements of the refrigerant airflow, as long as the refrigerant airflow in the drawer cavity 210 can be exhausted. Furthermore, to ensure that the refrigerant airflow can smoothly return to the evaporator 141, the humidifying air outlet 500 can be located adjacent to the refrigerator return air duct 150.

[0092] Reference Figure 3 In this embodiment, the total air outlet area of ​​the humidifying air outlet 500 is greater than the air inlet area of ​​the circulating air inlet 410.

[0093] It is understandable that the total air outlet area of ​​the humidifying air outlet 500 is greater than the air inlet area of ​​the circulating air inlet 410. Therefore, when the circulating fan 300 is started, the frozen airflow that has exchanged heat with the food in the drawer cavity 210 can be smoothly discharged to the outside of the drawer cavity 210. The frozen airflow in the air-cooled cooling duct 120 can be smoothly drawn into the drawer cavity 210 by the circulating fan 300, so as to effectively ensure the quick freezing effect of the refrigerator on the food.

[0094] Furthermore, when the circulating fan 300 stops, the amount of refrigerated airflow in the air-cooled cooling duct 120 flowing into the drawer cavity 210 through the circulating air inlet 410 is minimized, or even eliminated altogether, to ensure the moisture content of the frozen food, thus guaranteeing the refrigerator's moisturizing and freezing effect.

[0095] Reference Figure 3 In this embodiment, the ratio of the total air outlet area of ​​the humidifying air outlet 500 to the air inlet area of ​​the circulating air inlet 410 ranges from 0.4 to 0.6.

[0096] Understandably, the ratio of the total air outlet area of ​​the humidifying air outlet 500 to the air inlet area of ​​the circulating air inlet 410 can be 0.4, 0.45, 0.5, 0.55, 0.6, etc. This further ensures the rapid freezing effect of the refrigerator on the food when the circulating fan 300 is started, and the moisture content of the frozen food when the circulating fan 300 is stopped.

[0097] Reference Figure 3 In this embodiment, the humidifying air outlet 500 includes an air outlet 510 on the cover.

[0098] The air outlet 510 is located on the top cover 400. The frozen airflow that has exchanged heat with the food in the drawer cavity 210 can then return to the air-cooled cooling duct 120 through the air outlet 510 and be discharged from the drawer cavity 210.

[0099] Furthermore, the number of air outlets 510 on the cover can be set to multiple.

[0100] Reference Figure 3 In this embodiment, the plurality of cover air outlets 510 include a first cover air outlet 511 disposed adjacent to the left end of the top cover 400, a second cover air outlet 512 disposed adjacent to the right end of the top cover 400, and a third cover air outlet 513 disposed adjacent to the rear end of the top cover 400; and the first cover air outlet 511 is located to the left of the cooling air outlet 130, and the second cover air outlet 512 is located to the right of the cooling air outlet 130.

[0101] Understandably, some of the cover air outlets 510 (the first cover vent 511 and the second cover vent 512) are positioned adjacent to the left and right ends of the top cover 400 on the left and right sides of the cooling air inlet 130. Consequently, some of the cover air outlets 510 are not distributed along the main flow path of the freezing airflow within the air-cooled cooling duct 120. This effectively prevents the freezing airflow within the air-cooled cooling duct 120 from entering the drawer cavity 210 through the cover air outlets 510, ensuring that the refrigerator can normally perform rapid freezing and proper moisture-retaining freezing of food.

[0102] Meanwhile, another part of the cover air outlet 510 (third cover vent 513) is located adjacent to the rear end of the top cover 400. Since the height of the cooling air outlet 130 is higher than the rear end of the top cover 400, the freezing airflow flowing forward from the cooling air outlet 130 will not flow into the drawer cavity 210 through the third cover vent 513, ensuring that the refrigerator can normally freeze food quickly and keep food moist during freezing.

[0103] Reference Figure 3 In this embodiment, the humidifying air outlet 500 includes a circulating air outlet 520.

[0104] The circulating air outlet 520 is located at the front of the freezer drawer 200. Thus, the frozen airflow that has exchanged heat with the food in the drawer cavity 210 can be discharged from the drawer cavity 210 to the front of the freezer drawer 200 through the circulating air outlet 520.

[0105] Reference Figure 3 In this embodiment, the number of circulating air outlets 520 can be set to multiple, and the multiple circulating air outlets 520 are arranged in the left and right direction.

[0106] Reference Figure 2 , Figure 17 , Figure 18 or Figure 19 In this embodiment, the cabinet 100 is provided with an evaporation chamber 140 for housing the evaporator 141 of the refrigerator and a return air duct 150 connected to the evaporation chamber 140. The humidifying air outlet 500 is connected to the return air duct 150.

[0107] Understandably, by setting up the return air duct 150, the refrigerant airflow flowing out of the humidifying air outlet 500 can flow back into the evaporator chamber 140 to exchange heat with the evaporator 141, and the refrigerant airflow after exchanging heat with the evaporator 141 can continue to be delivered to the cooling air outlet 130 (and / or the cooling air outlet 170) to achieve the circulation of the refrigerant airflow and ensure the operation of the refrigerator.

[0108] Reference Figure 2 , Figure 17 , Figure 18 or Figure 19 In this embodiment, the return air duct 150 includes a return air section 151 located in front of the freezer drawer 200. A humidifying air outlet 500 is connected to the return air section 151 to allow the refrigerant airflow exiting the drawer cavity 210 through the humidifying air outlet 500 to flow back into the evaporator chamber 140. The refrigerant airflow, after heat exchange with the evaporator 141, continues to be delivered to the cooling air outlet 130 (and / or the cooling air supply outlet 170) to achieve refrigerant airflow circulation and ensure the operation of the refrigerator.

[0109] Reference Figure 1 , Figure 2 and Figure 16 In this embodiment, a storage port 160 is provided in front of the freezer compartment 110, and the refrigerator includes a drawer door 600. The drawer door 600 is located at the storage port 160 and is connected to the front of the freezer drawer 200. The return air section 151 is located between the drawer door 600 and the freezer drawer 200.

[0110] Reference Figure 2 , Figure 3 , Figure 17 , Figure 18 and Figure 19 In this embodiment, the circulating air outlet 520 is connected to the return air section 151 to allow the refrigerant airflow that flows out of the drawer cavity 210 through the circulating air outlet 520 to flow back into the evaporator chamber 140.

[0111] It is understandable that the specific form in which the humidifying air outlet 500 is connected to the return air duct 150 can be that the circulating air outlet 520 located at the front end of the freezer drawer 200 is connected to the return air section 151, so as to realize that the refrigerated airflow flowing out of the drawer cavity 210 through the circulating air outlet 520 is returned to the evaporation chamber 140.

[0112] Reference Figure 2 , Figure 3 , Figure 17 , Figure 18 and Figure 19 In this embodiment, the cover air outlet 510 is connected to the air-cooled cooling duct 120, and the front end of the air-cooled cooling duct 120 is connected to the return air section 151, so as to allow the refrigerant airflow flowing out of the drawer cavity 210 through the cover air outlet 510 and the refrigerant airflow in the air-cooled cooling duct 120 to flow back into the evaporation chamber 140.

[0113] It is understandable that the specific form in which the humidifying air outlet 500 is connected to the return air duct 150 can be that the cover air outlet 510 is connected to the air-cooled cooling duct 120, and the front end of the air-cooled cooling duct 120 is connected to the return air section 151, so that the refrigerant airflow flowing out of the drawer cavity 210 through the circulating air outlet 520 flows back to the evaporator chamber 140 together with the refrigerant airflow in the air-cooled cooling duct 120.

[0114] Reference Figure 3 In this embodiment, the total air outlet area of ​​the multiple circulating air outlets 520 is the same as the total air outlet area of ​​the multiple cover air outlets 510.

[0115] It is understandable that the humidifying air outlet 500 can simultaneously include multiple cover air outlets 510 and multiple circulating air outlets 520, and the total air outlet area of ​​the multiple circulating air outlets 520 is the same as the total air outlet area of ​​the multiple cover air outlets 510. This ensures that the amount of refrigerant air flowing out of the drawer cavity 210 through the cover air outlets 510 and through the circulating air outlets 520 is the same. This prevents the flow rate of the refrigerant air from differing between the cover air outlets 510 and the circulating air outlets 520, thus maintaining the stability of the refrigerant airflow throughout the entire circulating air path (the refrigerant airflow flows out from the evaporator chamber 140, sequentially through the cooling air inlet 130, the air-cooled cooling duct 120, the return air duct 150, and finally returns to the evaporator chamber 140), guaranteeing the normal operation of the refrigerator.

[0116] Reference Figure 2 , Figure 5 In this embodiment, a cooling air duct 230 is provided at the bottom of the freezer drawer 200. The cooling air duct 230 is located below the drawer cavity 210. The freezer drawer 200 includes a cooling component 240 located between the drawer cavity 210 and the cooling air duct 230. The cooling component 240 is used to cool the food in the drawer cavity 210 by exchanging heat with the freezing airflow in the cooling air duct 230.

[0117] In this embodiment of the refrigerator, a cooling guide 240 is provided at the bottom of the drawer cavity 210. When food is placed in the drawer cavity 210, it can be placed directly on the cooling guide 240, allowing the cooling guide 240 to directly contact the food and promote rapid freezing of the food in the drawer cavity 210. Therefore, this embodiment enables the air-cooled refrigerator to freeze food quickly, meeting the user's need for rapid freezing of food and improving the user experience.

[0118] Furthermore, in this embodiment, the refrigerator has a circulating fan 300 at the top of the drawer cavity 210 and a cooling guide 240 at the bottom of the drawer cavity 210, which further reduces the time required for food to be frozen. Therefore, the refrigerator in this embodiment can further meet the user's need for rapid freezing of food and further improve the user experience.

[0119] In addition, the material of the cooling component 240 can be metal materials such as aluminum, copper, or cast iron.

[0120] Reference Figure 2 , Figure 5 In this embodiment, the circulating fan 300 is also used to cause the refrigerant airflow entering the drawer cavity 210 to flow over the upper surface of the cooling guide 240 when it is in the activated state.

[0121] In this refrigerator embodiment, the circulating fan 300, when activated, can also cause the freezing airflow to flow over the upper surface of the cooling guide 240, thus uniformly distributing the cold air on the cooling guide 240. Furthermore, the freezing airflow entering the drawer cavity 210 can exchange heat with the cooling guide 240, maintaining consistency between the freezing airflow and the cold airflow on the cooling guide 240. Therefore, this embodiment can further ensure the consistency of the freezing degree of food within the drawer cavity 210, improving the freezing quality of food and enhancing the user experience.

[0122] In this embodiment, the humidifying air outlet 500 connecting the drawer cavity 210 is disposed around the circulating air inlet 410, and the humidifying air outlet 500 is disposed adjacent to the end of the freezer drawer 200. The circulating fan 300 is used to cause the frozen airflow flowing over the upper surface of the cooling guide 240 to flow out of the drawer cavity 210 through the humidifying air outlet 500.

[0123] It is understandable that by arranging the humidifying air outlet 500 around the circulating air inlet 410 and setting the humidifying air outlet 500 adjacent to the end of the freezer drawer 200, the cooling airflow flowing into the drawer cavity 210 through the humidifying air outlet 500 can flow over as much area as possible on the upper surface of the cooling guide 240, so as to ensure the effect of uniform cooling on the cooling guide 240 and further improve the user experience.

[0124] In this embodiment, the first cover vent 511 is located on the left side of the circulating air inlet 410, the second cover vent 512 is located on the right side of the circulating air inlet 410, and the third cover vent 513 is located on the rear side of the circulating air inlet 410.

[0125] Understandably, the humidifying air outlet 500 is arranged around the circulating air inlet 410. Specifically, the first cover vent 511 is located on the left side of the circulating air inlet 410, the second cover vent 512 is located on the right side of the circulating air inlet 410, the third cover vent 513 is located on the rear side of the circulating air inlet 410, and the circulating air outlet 520 is located on the front side of the circulating air inlet 410 (the front end of the freezer drawer 200). Furthermore, since the circulating fan 300 is positioned at the center of the bottom surface of the drawer cavity 210, the cooling airflow flowing over the upper surface of the cooling guide can flow through as much space as possible within the drawer cavity 210, ensuring consistency in cooling capacity throughout the drawer cavity 210 and on the cooling guide 240, thereby further enhancing the user experience.

[0126] Furthermore, in the embodiment described above where a cooling guide 240 for cooling food is provided at the bottom of the drawer cavity 210, factors such as the flow rate and volume of the freezing airflow, as well as the contact area with the cooling guide 240, all affect the heat exchange between the cooling guide 240 and the freezing airflow. Therefore, it is difficult to guarantee the amount of cold air exchanged onto the cooling guide 240, making it difficult to ensure the rapid freezing effect of quickly freezing food by providing the cooling guide 240 at the bottom of the drawer cavity 210, thus reducing the user experience.

[0127] Reference Figure 2 , Figure 6 In this embodiment, the refrigerator also includes a heat exchanger 700.

[0128] The heat exchanger 700 is connected below the cooling conductor 240 and extends vertically within the cooling air duct 230. The heat exchanger 700 is used to exchange heat with the cooling conductor 240 and the refrigeration airflow.

[0129] In this embodiment of the refrigerator, a heat exchanger 700 is connected below the cooling guide 240. The heat exchanger 700 extends vertically within the cooling air duct 230, thereby increasing the heat exchange area between the cooling guide 240 and the freezing airflow. This ensures that the freezing airflow exchanges cold energy onto the cooling guide 240, thus guaranteeing the refrigerator's rapid freezing effect on food and improving the user experience.

[0130] In addition, the heat exchanger 700 can be made of metals such as aluminum, copper, or cast iron.

[0131] Reference Figure 2 , Figure 5 and Figure 7 In this embodiment, the height K of the heat exchanger 700 extending in the vertical direction is greater than or equal to 5 mm, which can effectively ensure the heat exchange area of ​​the heat exchanger 700, the cold conduction component 240 and the freezing airflow, so as to further ensure the amount of cold airflow exchanged on the cold conduction component 240, ensure the quick freezing effect of the refrigerator on food, and improve the user experience.

[0132] Reference Figure 2 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the heat exchanger 700 includes heat exchange fins 710.

[0133] The heat exchange fins 710 are located below the cooling component 240. The heat exchange fins 710 are arranged in the cooling air duct 230 in the vertical direction and extend in the front-back direction.

[0134] It is understandable that the heat exchanger 700 can be a heat exchange fin 710 to increase the heat exchange area between the cooling element 240 and the refrigeration airflow.

[0135] Furthermore, specifically, the height K of the heat exchange fins 710 can be greater than or equal to 5 millimeters to ensure the rapid freezing effect of the refrigerator on food.

[0136] Reference Figure 8 In this embodiment, the thickness M of the heat exchange fins 710 is greater than or equal to 0.1 mm to ensure the speed of heat exchange on the cooling guide 240, so as to further ensure the amount of cold air exchanged on the cooling guide 240, ensure the rapid freezing effect of the refrigerator on food, and improve the user experience.

[0137] In a modified embodiment, the heat exchanger 700 may include a needle-shaped or columnar heat exchange column disposed below the cooling conductor 240, or a protruding structure disposed below the cooling conductor 240, in order to increase the heat exchange area between the cooling conductor 240 and the cooling airflow.

[0138] Reference Figure 2 and Figure 16 In this embodiment, a cooling air supply port 170 is provided at the rear of the freezer compartment 110 and at the rear end of the cooling air supply duct 230. The cooling air supply port 170 is used to provide freezing airflow into the cooling air supply duct 230. Furthermore, the cooling air supply port 170 extends in the left and right direction to ensure that the cooling air supply port 170 can have a large air volume, thus ensuring the freezing performance and quick-freezing effect of the refrigerator.

[0139] Reference Figure 2 , Figure 3 , Figure 17 , Figure 18 and Figure 19 In this embodiment, the refrigerator includes an air duct plate 800, which is disposed at the rear of the freezer compartment 110. An air supply duct 810 is formed between the air duct plate 800 and the rear wall of the freezer compartment 110. A cooling air supply port 170 and a cooling air supply port 130 are opened on the air duct plate 800 and are connected to the air supply duct 810. The bottom of the air supply duct 810 is connected to the evaporator chamber 140. After exchanging heat with the evaporator 141, the refrigerant airflow flows out of the evaporator chamber 140 and flows through the air supply duct 810 to the cooling air supply port 170 and the cooling air supply port 130.

[0140] Reference Figure 2 , Figure 6 and Figure 16 In this embodiment, the number of heat exchange fins 710 is set to multiple, the multiple heat exchange fins 710 are arranged in the left and right direction, and the multiple heat exchange fins 710 are set to correspond to the cooling air supply port 170.

[0141] It is understandable that by setting the number of heat exchange fins 710 to multiple, the heat exchange area between the cooling element 240 and the freezing airflow is further increased, thereby ensuring the amount of cold air exchanged onto the cooling element 240, further ensuring the rapid freezing effect of the refrigerator on food, and improving the user experience.

[0142] Furthermore, it should be understood that multiple heat exchange fins 710 are configured to correspond to the cooling air supply port 170 so that multiple heat exchange fins 710 can contact the refrigeration airflow and exchange the coldness of the refrigeration airflow to the heat conduction element, thereby further ensuring the coldness of the refrigeration airflow exchanged to the cooling element 240.

[0143] Reference Figure 8 In this embodiment, the gap N between the heat exchange fins 710 is greater than or equal to 5 mm to ensure the speed at which the freezing airflow passes through the heat exchange fins 710, thereby further ensuring the amount of cold air exchanged onto the cooling conductor 240, ensuring the rapid freezing effect of the refrigerator on food, and improving the user experience.

[0144] Reference Figure 8 In this embodiment, the height K of the heat exchange fin 710 can be set to 10 mm, the gap N between any two heat exchange fins 710 is 10 mm, and the thickness M of the heat exchange fin 710 can be 1 mm.

[0145] Understandably, the height of the heat exchange fins 710, the gap between any two heat exchange fins 710, and the thickness of the heat exchange fins 710 can be set according to the size of the cooling duct 230 and the flow rate or volume of the freezing airflow, so as to effectively ensure the amount of cold air exchanged on the cooling element 240 and ensure the rapid freezing effect of the refrigerator on food.

[0146] Specifically, the heat exchange fins 710 can be set to 10 mm to avoid reducing the heat exchange area between the heat exchange fins 710 and the refrigeration airflow due to excessively short vertical height, and to avoid reducing the speed of heat exchange from the heat exchange fins 710 to the cooling guide element 240 due to excessively long vertical height. Furthermore, the thickness of the heat exchange fins 710 can be set to 1 mm to avoid reducing the speed of heat exchange from the heat exchange fins 710 to the cooling guide element 240 due to excessively small thickness, and to avoid increasing the weight of the heat exchange element 700 due to excessively large thickness, thereby further increasing the weight of the freezer drawer 200. Furthermore, the gap between any two heat exchange fins 710 can be set to 10 mm to avoid slowing down the flow rate of the refrigerant air through the heat exchange fins 710 due to the gap being too small, and to avoid reducing the heat exchange efficiency between the refrigerant air and the heat exchange fins 710 due to the gap being too large.

[0147] In this embodiment, the ratio of the height K to the thickness M of the heat exchange fin 710 can range from 100 to 5. For example, the ratio of the height to the thickness of the heat exchange fin 710 can range from 50. Specifically, the height of the heat exchange fin 710 can be 5 mm and the thickness of the heat exchange fin 710 can be 0.1 mm; or, the height of the heat exchange fin 710 can be 50 mm and the thickness of the heat exchange fin 710 can be 1 mm.

[0148] It is understandable that by limiting the range of the ratio of the height to the thickness of the heat exchange fin 710, that is, the ratio of the height to the thickness of the heat exchange fin 710 is 100-5, the heat exchange performance of the heat exchange fin 710 can be well guaranteed.

[0149] Reference Figure 8 In this embodiment, the heat exchanger 700 further includes an enhanced heat exchange plate 720.

[0150] The enhanced heat exchange plate 720 is connected below the heat exchange fins 710. The enhanced heat exchange plate 720 is arranged in the left-right direction and extends in the front-back direction.

[0151] It is understandable that by enhancing the setting of the heat exchange plate 720, the heat exchange area between the cooling element 240 and the freezing airflow is further increased, thereby ensuring the amount of cold air exchanged onto the cooling element 240, further ensuring the rapid freezing effect of the refrigerator on food, and improving the user experience.

[0152] Meanwhile, by enhancing the heat exchange plate 720, the overall structural strength, horizontal stability, and pressure-bearing capacity of the heat exchange component 700 can be improved.

[0153] Reference Figure 5 , Figure 6 and Figure 7 In this embodiment, the cooling component 240 includes a cooling plate 241.

[0154] The cold guide plate 241 is disposed between the drawer cavity 210 and the cold air supply duct 230. The heat exchanger 700 is connected below the cold guide plate 241. The cold guide plate 241 is used to exchange heat with the heat exchanger 700 and the refrigeration airflow.

[0155] It is understandable that the cooling guide 240 can be a plate-shaped cooling guide plate 241 set at the bottom of the drawer cavity 210, so as to exchange heat with the freezing airflow and the heat exchanger 700, and transfer the exchanged cold energy to the food in contact with it, so as to cool the food.

[0156] Furthermore, in embodiments where a cooling guide 240 for cooling food is provided at the bottom of the drawer cavity 210, factors such as the flow rate, velocity, and heat exchange area of ​​the cooling airflow passing through various points below the cooling guide 240 will affect the distribution of cooling on the cooling guide 240. Consequently, the uniformity of cooling on the cooling guide 240 is difficult to guarantee, which will lead to inconsistent freezing of the food in the drawer cavity 210, further reducing the freezing quality of the food and lowering the user experience.

[0157] Reference Figure 8 In this embodiment, a cooling channel 2411 is provided extending inside the cooling plate 241, and the cooling channel 2411 is filled with cooling liquid 2412 to uniformly distribute the cooling on the cooling plate 241.

[0158] In this refrigerator embodiment, due to the arrangement of the cold-conducting channel 2411 and the cold-conducting liquid 2412, when the cold airflow exchanges cold energy onto the cold-conducting plate 241 and part of the cold-conducting liquid 2412, the portion of the cold-conducting liquid 2412 undergoes a phase change and flows towards the location of the remaining cold-conducting liquid 2412, simultaneously exchanging cold energy with the remaining cold-conducting liquid 2412. This achieves uniform cold energy distribution on the cold-conducting plate 241, making the cold energy uniform throughout the cold-conducting plate 241. Therefore, the refrigerator of this embodiment can effectively ensure the consistency of the freezing degree of food in the drawer cavity 210, improve the freezing quality of food, and enhance the user experience.

[0159] Reference Figure 8 In this embodiment, a capillary groove 2413 is provided on the inner wall of the cooling channel 2411 to increase the heat exchange area between the inner wall of the cooling channel 2411 and the cooling liquid 2412.

[0160] Understandably, by setting up the capillary groove 2413, the heat exchange rate of the cooling plate 241 and the cooling liquid 2412 can be improved, so as to further ensure the rapid freezing effect of the refrigerator on food and improve the user experience.

[0161] Reference Figure 8 In this embodiment, the capillary grooves 2413 are disposed on the top and bottom walls of the cooling channel 2411, thereby improving the heat exchange rate between the bottom and top of the cooling plate 241 and the cooling liquid 2412, ensuring the heat exchange rate of the cold energy at the bottom of the cooling plate 241 to the top, so as to further ensure the quick-freezing effect of the refrigerator on food and improve the user experience.

[0162] Reference Figure 9 and Figure 10 In this embodiment, the cooling channel 2411 is bent and coiled inside the cooling plate 241 to make the cooling channel 2411 cover the cooling plate 241, so as to further even out the cold on the cooling plate 241, improve the freezing quality of food by the refrigerator, and enhance the user experience.

[0163] Specifically, the cooling channel 2411 can be arranged in multiple S-shapes, or it can bend and coil from the center of the cooling plate 241 to the outside of the cooling plate 241.

[0164] Reference Figure 6 and Figure 7 In this embodiment, the cooling component 240 includes a cooling substrate 242.

[0165] The cooling substrate 242 is disposed between the drawer cavity 210 and the cooling air duct 230. The cooling substrate 242 is attached to the top of the cooling plate 241 and is used to uniformly distribute the cooling on the cooling plate 241.

[0166] In this embodiment of the refrigerator, the cooling guide 240 may also include a cooling guide substrate 242 attached to and connected above the cooling guide plate 241. The cooling guide substrate 242 can evenly distribute the cold energy on the cooling guide plate 241 to further ensure the consistency of the freezing degree of the food in the drawer cavity 210, improve the freezing quality of the food in the refrigerator, and enhance the user experience.

[0167] Reference Figure 6 In this embodiment, the cold-conducting plate 241 and the cold-conducting substrate 242 can be an integral structure, or the cold-conducting plate 241 and the heat exchanger 700 can be an integral structure, or the cold-conducting plate 241, the cold-conducting substrate 242 and the heat exchanger 700 can be an integral structure. The above can avoid limiting the heat transfer of cold energy between them when other connection methods are used between the cold-conducting plate 241, the cold-conducting substrate 242 and the heat exchanger 700, and effectively ensure the overall thermal conductivity of the connection between the heat exchanger 700 and the cold-conducting component 240.

[0168] When the cooling plate 241 and the cooling substrate 242 are an integral structure, the thickness of the cooling plate 241 and the cooling substrate 242 in the vertical direction can range from 4 mm to 10 mm to effectively ensure the overall load-bearing capacity of the cooling plate 241 and the cooling substrate 242.

[0169] Reference Figure 6 In this embodiment, the cooling plate 241 includes multiple cooling bodies 2414 arranged in the left-right direction.

[0170] It should be understood that the cold-conducting plate 241 can be composed of multiple cold-conducting elements 2414 connected together, which makes the cold-conducting plate 241 easier to manufacture. Furthermore, the cold-conducting elements 2414 can also be plate-shaped.

[0171] Reference Figure 11 , Figure 12 and Figure 13In this embodiment, support portions 221 extending laterally are provided on two opposing vertical sidewalls of the drawer cavity 210. The support portions 221 are located at the bottom of the drawer cavity 210, and the cooling substrate 242 is mounted on the support portions 221.

[0172] Understandably, the support portion 221 allows the heat exchanger 700, the coolant 240, and their coolant substrate 242 to be positioned at the bottom of the drawer cavity 210, thus enabling their installation. Furthermore, the support portion 221 ensures that the bottom wall of the drawer cavity 210 has a large load-bearing capacity.

[0173] Reference Figure 14 and Figure 15 In this embodiment, the freezer drawer 200 includes a front drawer partition 250 and a rear drawer partition 260.

[0174] The front drawer partition 250 is located between the drawer cavity 210 and the cooling air duct 230. The front drawer partition 250 is connected to the front wall of the drawer cavity 210 and extends rearward. The front drawer partition 250 is located in front of the cooling plate 241 and the cooling substrate 242.

[0175] The rear drawer partition 260 is located between the drawer cavity 210 and the cooling air duct 230. The rear drawer partition 260 is connected to the rear wall of the drawer cavity 210 and extends forward. The rear drawer partition 260 is located behind the cooling plate 241 and the cooling substrate 242.

[0176] The cooling substrate 242 is connected to the rear end of the front drawer partition 250 and the front end of the rear drawer partition 260.

[0177] It is understandable that the arrangement of the front drawer partition 250 and the rear drawer partition 260 allows the heat exchanger 700, the coolant 240, and their coolant base plate 242 to be positioned at the bottom of the drawer cavity 210, thus facilitating their installation. Furthermore, it ensures that the bottom wall of the drawer cavity 210 has a greater load-bearing capacity (for example, compared to the case where the bottom wall of the drawer cavity 210 is entirely the upper side of the coolant base plate 242, which is positioned at the bottom of the drawer cavity 210 via snap-fit ​​or other means). Simultaneously, it facilitates the assembly of the freezer drawer 200.

[0178] Reference Figure 14 and Figure 15In this embodiment, the rear end of the front drawer partition 250 is provided with a recessed front stepped structure 251, and the front end of the rear drawer partition 260 is provided with a recessed rear stepped structure 261. The cooling substrate 242 is mounted on the front stepped structure 251 and the rear stepped structure 261 to achieve the connection between the cooling substrate 242 and the front drawer partition 250 and the rear drawer partition 260, and further ensure that the bottom wall of the drawer cavity 210 can have a large load-bearing capacity, making the assembly of the freezer drawer 200 simpler.

[0179] Reference Figure 2 , Figure 14 , Figure 15 , Figure 17 , Figure 18 and Figure 19 In this embodiment, the freezer drawer 200 includes a drawer bottom plate 270.

[0180] The drawer bottom plate 270 is located below the cooling guide 240, and the cooling air duct 230 is located between the cooling guide 240 and the drawer bottom plate 270.

[0181] The lower front end of the freezer drawer 200 is provided with a cold air outlet 280, and the lower rear end of the freezer drawer 200 is provided with a cold air inlet 290 corresponding to the front of the cold air supply outlet 170. The cold air supply duct 230 connects the cold air outlet 280 and the cold air inlet 290.

[0182] Understandably, with the arrangement of the drawer bottom plate 270, the cold air outlet 280, and the cold air inlet 290, the cold air supply duct 230 can be a relatively closed channel, and the freezing airflow can be restricted to flow in a relatively closed space to avoid the loss of freezing airflow and cold energy, thus ensuring the freezing performance and quick-freezing effect of the refrigerator.

[0183] Reference Figure 17 , Figure 18 and Figure 19 In this embodiment, the cooling outlet 280 is connected to the return air section 151 to allow the refrigerant airflow in the cooling supply duct 230 to flow back into the evaporation chamber 140.

[0184] It is understandable that by connecting the cooling air outlet 280 to the return air section 151, the refrigerant airflow that has exchanged heat with the cooling element 240 and the heat exchange element 700 and flows out through the cooling air outlet 280 can flow back into the evaporator chamber 140 to exchange heat with the evaporator 141. The refrigerant airflow that has exchanged heat with the evaporator 141 is then transported to the cooling air supply outlet 170 (and / or the cooling air supply outlet 130) to achieve the circulation of the refrigerant airflow and ensure the operation of the refrigerator.

[0185] Reference Figure 17In this embodiment, a cooling fan 281 is provided at the cooling outlet 280. The cooling fan 281 is used to guide the refrigerant airflow in the cooling supply duct 230 into the return air section 151.

[0186] Understandably, the cooling fan 281 is designed to effectively ensure the flow rate of the refrigerated air from the cooling air inlet 170 into the cooling air duct 230, thereby ensuring the amount of cold air exchanged onto the cooling component 240, guaranteeing the refrigerator's rapid freezing effect on food, and improving the user experience.

[0187] Reference Figure 17 In the first embodiment of the evaporation chamber 140 of this example, a freezing chamber 180 is also provided inside the box 100. The freezing chamber 180 is used to freeze the food stored inside. The freezing chamber 180 is located below the freezing compartment 110. A freezing partition assembly 190 is provided between the freezing compartment 110 and the freezing chamber 180, so that the freezing compartment 110 and the freezing chamber 180 can be separated into two relatively independent chambers by the freezing partition assembly 190.

[0188] Furthermore, the return air duct 150 also includes an air supply section 152 located below the drawer bottom plate 270 and above the freezer partition assembly 190, and a return air vent 111 is provided at the rear of the freezer compartment 110. The return air vent 111 is provided corresponding to the air supply section 152, and the front end of the air supply section 152 is connected to the bottom end of the return air section 151, the rear end of the air supply section 152 is connected to the return air vent 111, and the return air vent 111 is connected to the evaporator chamber 140.

[0189] It is understandable that the chilled airflow flowing out of the drawer cavity 210 through the humidifying air outlet 500 and / or the chilled airflow flowing out of the cooling supply duct 230 through the cooling air outlet 280 can flow back into the evaporator chamber 140 through the air supply section 152 and the return air outlet 111.

[0190] Furthermore, since the air supply section 152 is located below the drawer bottom plate 270, the freezing airflow in the air supply section 152 can continue to contact the drawer bottom plate 270, so that the freezing airflow in the air supply section 152 can continue to cool the freezer drawer 200, thereby further ensuring the freezing performance of the refrigerator and the quick-freezing effect on the food.

[0191] In this embodiment, a return air baffle is provided in the freezer chamber 180 and the freezer compartment 110. An air supply section of the return air duct 150 is formed between the return air baffle and the left and / or right side walls of the freezer chamber 180 and the freezer compartment 110. A return air inlet 111 is opened on the return air baffle, and the top end of the air supply section is connected to the return air inlet 111, while the bottom end of the air supply section is connected to the evaporator chamber 140. This allows for communication between the return air inlet 111 and the evaporator chamber 140.

[0192] Reference Figure 18 and Figure 19 In the second embodiment of the evaporator chamber 140 of this example, an evaporation baffle 142 is provided in the lower part of the freezer chamber 110 to separate the evaporator chamber 140 in the lower part of the freezer chamber 110. The front end of the evaporation baffle 142 has a return air vent 111 that connects to the evaporator chamber 140, and the bottom end of the return air section 151 is connected to the return air vent 111. Therefore, the chilled airflow flowing into the return air section 151 through the humidifying air outlet 500 and / or flowing into the return air section 151 through the cooling air outlet 280 can flow directly downwards and return to the evaporator chamber 140 through the return air vent 111.

[0193] Reference Figure 18 and Figure 19 In this embodiment, the cooling air duct 230 can be located below the freezer drawer 200 and on top of another freezer drawer 200. That is, the drawer in this embodiment may not have a drawer bottom plate 270, a cooling air outlet 280, and a cooling air inlet 290; the lower sides of the cooling plate 241, the front drawer partition 250, and the rear drawer partition 260 are the outer bottom surface of the freezer drawer 200. The refrigerant airflow from the cooling air duct 230 flows downwards after entering the return air section 151 and returns to the evaporator chamber 140 through the return air inlet 111. Of course, the drawer in this embodiment may also have a drawer bottom plate 270, a cooling air outlet 280, and a cooling air inlet 290.

[0194] Furthermore, in existing technology, moisture from food inside the freezer drawer 200 may seep into the drawer cavity 210; or when food is being stored or retrieved in the freezer drawer 200, humid air from the room may also enter the drawer cavity 210, where the moisture will condense and then freeze into ice. This necessitates regular cleaning of the ice in the drawer cavity 210, thus reducing the user experience.

[0195] Reference Figure 11 , Figure 12 and Figure 13 In this embodiment, a drain section 211 is provided at the bottom of the drawer cavity 210. The drain section 211 is used to allow water in the drawer cavity 210 to be discharged to the outside of the drawer cavity 210.

[0196] In this embodiment of the refrigerator, a drain section 211 is provided at the bottom of the drawer cavity 210 to allow water inside the drawer cavity 210 to drain to the outside of the drawer cavity 210. Therefore, when moisture in the air inside the drawer cavity 210 condenses into water, the water is discharged to the outside of the drawer cavity 210 through the drain section 211, preventing ice residue from remaining inside the drawer cavity 210. Thus, the refrigerator of this embodiment eliminates the need for users to regularly clean ice residue from the drawer cavity 210, effectively ensuring a better user experience.

[0197] Reference Figure 6 , Figure 7 , Figure 11 , Figure 12 and Figure 13 In this embodiment, the drainage section 211 is located between the cooling guide 240 and the vertical side wall of the drawer cavity 210. The drainage section 211 is used to allow water in the drawer cavity 240 to flow into the cooling air duct 230.

[0198] Understandably, the water in the drawer cavity 210 can be discharged into the cooling air duct 230 so that the water can be discharged to the outside of the drawer cavity 210 through the drain section 211, so that no more ice residue will remain in the drawer cavity 210.

[0199] Reference Figure 12 , Figure 13 , Figure 14 and Figure 15 In this embodiment, the drainage section includes a drainage gap 212.

[0200] The drainage gap 212 is located between the cooling substrate 242 and the vertical sidewall of the drawer cavity 210. The drainage gap 212 is used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0201] It is understood that the drainage section 211 can be a drainage gap 212 provided between the cooling substrate 242 and the vertical side wall of the drawer cavity 210, thereby enabling the drainage section 211 to discharge the water in the drawer cavity 210 into the cooling air duct 230.

[0202] Figure 11 , Figure 12 and Figure 13 , refer to Figure 11 , Figure 12 and Figure 13 In this embodiment, the drainage section 211 includes a first gap 212 and a second gap 2122.

[0203] The first gap 2121 is located between the left side wall of the drawer cavity 210 and the left end of the cooling substrate 242. The first gap 2121 is used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0204] The second gap 2122 is located between the right side wall of the drawer cavity 210 and the right end of the cooling substrate 242. The second gap 2122 is used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0205] It is understood that the drainage section 211 can be a first gap 2121 and a second gap 2122 provided between the cooling substrate 242 and the left and right side walls of the drawer cavity 210, thereby enabling the drainage section 211 to discharge the water in the drawer cavity 210 to the outside of the drawer cavity 210.

[0206] Reference Figure 12 , Figure 13 , Figure 14 and Figure 15 In this embodiment, the drainage section 211 includes a drainage notch 213.

[0207] The drainage notch 213 is located at the end of the support 221 that extends laterally, and the drainage notch 213 is located between the vertical side wall of the drawer cavity 210 and the cooling plate 241. The drainage notch 213 is located below the drainage gap 212. The drainage notch 213 and the drainage gap 212 are used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0208] It is understandable that since the cooling substrate 242 is mounted at the bottom of the drawer cavity 210 via the support portion 221, the support portion 221 would obstruct the flow of water through the drain gap 212 to the lower left and right ends of the cooling substrate 242. Therefore, a drain notch 213 can be provided on the support portion 221 or at its end. Then, when water flows through the drain gap 212 to the lower part of the cooling substrate 242, it will continue to flow out of the drawer cavity 210 through the drain notch 213. Thus, by providing the drain notch 213 and the drain gap 212, the drain portion 211 can allow water inside the drawer cavity 210 to flow to the outside of the drawer cavity 210 (inside the cooling air duct 230).

[0209] Reference Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 In this embodiment, the support portion 221 may include a first support bar 2211 and a second support bar 2212.

[0210] The first support bar 2211 is disposed on the left side wall of the drawer cavity 210 and extends in the front-to-back direction. The second support bar 2212 is disposed on the right side wall of the drawer cavity 210 and extends in the front-to-back direction. The cooling substrate 242 is mounted on the first support bar 2211 and the second support bar 2212.

[0211] The front drawer partition 250 is located in front of the first support bar 2211 and the second support bar 2212.

[0212] The drainage gap 213 includes a first gap 2131 and a second gap 2132.

[0213] The first notch 2131 is located between the front drawer partition 250 and the first support bar 2211. The first notch 2131 is located below the first gap 2121. The first notch 2131 and the first gap 2121 are used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0214] The second notch 2132 is located between the front drawer partition 250 and the second support bar 2212. The second notch 2132 is located below the second gap 2122. The second notch 2132 and the second gap 2122 are used to allow water in the drawer cavity 210 to flow into the cooling air duct 230.

[0215] It is understood that the drainage notch 213 can be a first notch 2131 provided between the rear end of the front drawer partition 250 and the first support bar 2211, and a second notch 2132 provided between the rear end of the front drawer partition 250 and the second support bar 2212. When water flows through the first gap 2121 to the lower left end of the cooling substrate 242, it continues to flow out of the drawer cavity 210 through the first notch 2131; when it flows through the second gap 2122 to the lower right end of the cooling substrate 242, it continues to flow out of the drawer cavity 210 through the second notch 2132. Thus, through the provision of the first gap 2121 and the first notch 2131, and the second gap 2122 and the second notch 2132, the drainage section 211 can allow water inside the drawer cavity 210 to flow to the outside of the drawer cavity 210.

[0216] In other embodiments, the drawer bottom plate 270 (or the cooling air duct 230) is inclined downward from front to back, and a water supply channel is provided at the rear of the freezer compartment 110. One end of the water supply channel is connected to the rear end of the cooling air duct 230, and the other end of the water supply channel is connected to the water receiving tray provided below the evaporator 141.

[0217] Alternatively, the drawer bottom plate 270 (or the cooling air duct 230) is inclined upward from front to back, and a water supply channel is provided at the front of the freezer compartment 110. One end of the water supply channel is connected to the front end of the cooling air duct 230, and the other end of the water supply channel is connected to the water receiving tray provided below the evaporator 141.

[0218] The above allows water flowing from the drawer cavity into the cooling air duct 230 to flow through the cooling air outlet 280 / cooling air inlet 290 and the water supply channel into the water collection tray, preventing the water from flowing onto the indoor floor and ensuring the user experience.

[0219] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A refrigerator, characterized in that, include: The cabinet contains a freezer compartment. A freezer drawer is provided in the freezer compartment, and a drawer cavity is provided therein. A cold air supply duct is provided between the top of the drawer and the top wall of the freezer compartment. The top of the drawer cavity has an upward-facing access opening. A circulating fan is installed inside the air-cooled cooling duct, with its air outlet facing the drawer cavity. When the fan is activated, it is used to cause the refrigerant airflow in the air-cooled cooling duct to flow into the drawer cavity.

2. The refrigerator according to claim 1, characterized in that, The rear of the freezer compartment and the rear end of the air-cooled cooling duct are provided with cooling air outlets. The cooling air outlets are arranged facing forward and are used to provide the cooling airflow into the air-cooled cooling duct in both the start and stop states of the circulating fan.

3. The refrigerator according to claim 2, characterized in that, The circulating fan is installed corresponding to the cooling air outlet.

4. The refrigerator according to claim 1, characterized in that, The circulating fan is positioned at the center of the bottom surface of the drawer cavity.

5. The refrigerator according to claim 1, characterized in that, The refrigerator includes: A top cover, located at the access opening and between the drawer cavity and the air-cooled duct, is used to restrict the flow of the refrigerant air into the drawer cavity when the circulating fan is stopped. A circulating air inlet is provided on the top cover, and a humidifying air outlet communicating with the drawer cavity is provided on the top cover and / or on the freezer drawer. The circulating fan is located at the circulating air inlet. The circulating fan is used to cause the refrigerant air in the air-cooled duct to flow into the drawer cavity through the circulating air inlet when the circulating fan is started, and to discharge the refrigerant air from the drawer cavity through the humidifying air outlet when the circulating fan is started.

6. The refrigerator according to claim 5, characterized in that, The circulating fan includes: A fan bracket is provided at the circulating air inlet, and includes a fixing part located in the middle, which is located inside the drawer cavity; A drive motor is mounted on the fixed part; A circulating fan is connected to the drive shaft of the drive motor.

7. The refrigerator according to claim 5, characterized in that, A cooling air outlet is provided at the rear of the freezer compartment and at the rear end of the air-cooled cooling duct, the cooling air outlet being used to supply the cooling airflow into the air-cooled cooling duct; and, The height of the freezer drawer corresponding to the position of the circulating fan in the front-to-back direction is higher than the height of the rear end of the freezer drawer; and... The height of the top cover corresponding to the position of the circulating fan in the front-to-back direction is higher than the height of the rear end of the top cover.

8. The refrigerator according to claim 5, characterized in that, The humidifying air outlet is disposed on at least one of the top cover, the front end of the freezer drawer, the rear end of the freezer drawer, the left end of the freezer drawer, and the right end of the freezer drawer.

9. The refrigerator according to claim 5, characterized in that, The humidifying air outlet includes: A circulating air outlet is located at the front of the freezer drawer; and, The housing includes an evaporation chamber for housing the refrigerator's evaporator and a return air duct connected to the evaporation chamber; and... The return air duct includes a return air section located in front of the freezer drawer, and the circulating air outlet is connected to the return air section to allow the frozen airflow that flows out of the drawer cavity through the circulating air outlet to flow back into the evaporation chamber.

10. The refrigerator according to claim 5, characterized in that, The humidifying air outlet includes: The air outlet of the cover is located on the top cover and connected to the air-cooled supply duct; and... The housing includes an evaporation chamber for housing the refrigerator's evaporator and a return air duct connected to the evaporation chamber; and... The return air duct includes a return air section located in front of the freezer drawer, and the front end of the air-cooled cooling duct is connected to the return air section to allow the freezing airflow that flows out of the drawer cavity through the air outlet of the cover and the freezing airflow in the air-cooled cooling duct to flow back into the evaporator chamber.

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