Air-cooled refrigerator

Abstract

The application discloses a forced air cooling refrigerator, which comprises a shell, a fan and a guide air component. The interior of the shell is defined to form at least two layers of storage spaces. The fan is arranged at the lower part of the shell and is used for blowing cold air upward. The guide air component is arranged on the flow path of the cold air and comprises a first driving mechanism and a guide air plate. The guide air plate can move up and down under the driving of the first driving mechanism and can stay at a certain layer of storage space to guide the cold air into the corresponding storage space. According to the specific embodiment of the application, the forced air cooling refrigerator does not need a complex physical air duct. By arranging the guide air plate capable of moving up and down on the flow path of the cold air, the cold air can be conveniently and quickly guided into the storage space with a higher temperature to quickly reduce the temperature of the storage space and improve the temperature uniformity in each storage space. The structure and control process are simple, efficient and practical.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to an air-cooled refrigerator. Background Technology

[0002] Generally speaking, the airflow and temperature distribution in the refrigerator compartment of an air-cooled refrigerator have a significant impact on the food stored there. In order to achieve precise air delivery to the storage space, traditional air-cooled refrigerators have complex air duct structures, low cooling rates, and poor temperature uniformity in each storage space. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an air-cooled refrigerator that can conveniently and efficiently adjust the flow rate of cold air output to the storage space.

[0004] According to a specific embodiment of the present invention, a wind-cooled refrigerator includes a shell, a fan, and an air guide assembly; the interior of the shell defines at least two storage spaces; the fan is disposed at the lower part of the shell and is used to blow cold air upwards; the air guide assembly is disposed on the flow path of the cold air and includes a first driving mechanism and an air guide plate, the air guide plate being able to move up and down under the drive of the first driving mechanism and being able to stop at a certain storage space to guide the cold air into the corresponding storage space.

[0005] The air-cooled refrigerator according to a specific embodiment of the present invention has at least the following beneficial effects: the air-cooled refrigerator does not have a physical air duct structure, but a fan is set at the lower part of the shell to blow cold air upwards, and is used in conjunction with a first drive mechanism and an air guide plate. The air guide plate can move up and down and can stop at a certain storage space to guide the cold air into the storage space. Its structure is simple and can conveniently and efficiently adjust the flow rate of cold air output to the corresponding storage space as needed.

[0006] According to some embodiments of the present invention, each of the storage spaces is provided with a temperature sensor to detect the temperature within the storage space in real time.

[0007] According to some embodiments of the present invention, the air-cooled refrigerator further includes a controller, the controller being configured as follows:

[0008] In response to a temperature in a storage space exceeding a first preset value, the first driving mechanism drives the air guide plate to move and stop at the corresponding storage space, thereby introducing the cold air into the corresponding storage space.

[0009] According to some embodiments of the present invention, the controller is further configured to:

[0010] In response to the temperature of all the storage spaces being lower than the second preset value, the first drive mechanism drives the wing to move to the top.

[0011] According to some embodiments of the present invention, the first driving mechanism includes a motor and a conveyor belt, the air guide plate is mounted on the conveyor belt, and the motor can drive the conveyor belt to move the air guide plate up and down.

[0012] According to some embodiments of the present invention, the first driving mechanism includes a motor and a screw, the air guide plate includes a connecting part and a vane, the connecting part is provided with a thread that cooperates with the screw, the motor can drive the screw to rotate, and the screw can drive the air guide plate to move up and down.

[0013] According to some embodiments of the present invention, the motor is selected as a unidirectional motor, and the screw is selected as a reciprocating screw.

[0014] According to some embodiments of the present invention, the connecting part is configured as a cylindrical structure, and the cylindrical structure is provided with internal threads.

[0015] According to some embodiments of the present invention, the first driving mechanism further includes a guide rod arranged parallel to the screw, the guide rod having a guide groove on one side facing the screw, one end of the winglet being connected to the connecting portion, and the other end being movably disposed within the guide groove.

[0016] According to some embodiments of the present invention, two guide rods are provided, respectively located on both sides of the screw, and two winglets are provided, each winglet being symmetrically arranged between the screw and each guide rod relative to the screw.

[0017] According to some embodiments of the present invention, the air guide assembly further includes a second drive mechanism disposed on the first drive mechanism, the winglet includes a tip and a trailing edge, and the winglet is rotatable under the drive of the second drive mechanism to orient the tip or the trailing edge toward the storage space; wherein the winglet is a flat-bottomed winglet or a downward-sloping winglet.

[0018] According to some embodiments of the present invention, each of the storage spaces is provided with at least two temperature sensors for detecting the temperature of different areas of the storage space.

[0019] According to some embodiments of the present invention, the air-cooled refrigerator further includes a controller, the controller being configured as follows:

[0020] In response to a temperature in a certain area being higher than a second preset value, the first drive mechanism drives the air guide plate to move and stop at the storage space where the certain area is located, and the second drive mechanism drives the vane to rotate so that the tip of the vane is directed toward the certain area.

[0021] According to some embodiments of the present invention, the air-cooled refrigerator further includes a controller, the controller being configured as follows:

[0022] In response to the temperature of all areas of a certain storage space being higher than a second preset value, the first drive mechanism drives the air guide plate to move and stop at the storage space, and the second drive mechanism drives the vane to rotate so that the trailing edge of the vane faces the storage space.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a front view of a frost-free refrigerator (excluding the refrigerator door) according to an embodiment of the present invention;

[0026] Figure 2 This is a partial structural view of an air-cooled refrigerator according to an embodiment of the present invention;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0028] Figure 4 This is a schematic diagram of the principle structure of the air-cooled refrigerator according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the winglet (with its tip facing the same direction as the cold air) according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the air guide structure of the present invention, showing the blades (with the trailing edge facing the same direction as the cold air);

[0031] Figure 7 This is a schematic diagram of the structure of the flat-bottomed winglet according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the downward tilting airfoil according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of components such as the air guide plate according to an embodiment of the present invention;

[0034] Figure 10 for Figure 8 The diagram shows a structural schematic of an optional implementation of components such as the air guide plate.

[0035] Icon labels:

[0036] 1000 air-cooled refrigerator;

[0037] Air guide plate 100, connecting part 101, blade 102, guide rod 103, screw 104, bridging part 105, blade drive motor 106;

[0038] Cold air 201, trailing edge 202, tip 203;

[0039] 401. Shell 402. First storage space 403. Second storage area 404. Third storage area 405. Fourth storage area 405. Shelf 406. Air outlet 407. Central beam 408;

[0040] Fan 601;

[0041] Flat-bottomed winglet 701;

[0042] Down-slope airfoil 801. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0046] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0047] Currently, a refrigerator is a refrigeration device that maintains a constant low temperature, and it is also a household appliance that keeps food or other items at a constant low temperature.

[0048] Based on their cooling methods, refrigerators are divided into forced air circulation refrigerators and natural convection refrigerators. Forced air circulation refrigerators, also known as frost-free refrigerators, have a fan that forces airflow within the refrigerator, resulting in uniform temperature, rapid cooling, and ease of use. Natural convection refrigerators, also known as direct-cooling refrigerators, have a freezer compartment directly surrounded by an evaporator, or one evaporator inside the freezer compartment and another evaporator above the refrigerator compartment. The evaporator directly absorbs heat for cooling. These refrigerators have a relatively simple structure and low power consumption, but their temperature control is slightly worse, and they are less convenient to use. Currently, frost-free refrigerators are more common.

[0049] The airflow and temperature distribution within the refrigerator compartment of a frost-free refrigerator significantly impacts the food stored there. However, traditional frost-free refrigerators have complex airflow structures, resulting in low cooling rates and poor temperature uniformity across storage compartments. In related technologies, to achieve precise airflow into the storage space, schemes have emerged that control the flow rate of cold air output from the air outlets in the airflow duct by adjusting dampers. However, this approach further complicates the airflow duct structure, and electric dampers are costly and complex to control.

[0050] Therefore, this invention proposes an air-cooled refrigerator to solve the above-mentioned technical problems, which will be discussed below. Figures 1 to 9 The technical solution of the present invention will be described in detail below.

[0051] In some implementations, refer to Figure 1 As shown, the air-cooled refrigerator 1000 includes: a shell 401, internally defining at least two storage spaces; a fan 601, disposed at the lower part of the shell 401, for blowing cold air 201 upwards; and an air guide assembly, disposed in the flow path of the cold air 201, including a first drive mechanism and an air guide plate 100, which can move up and down under the drive of the first drive mechanism (not shown) and can stop at a certain storage space to guide the cold air 201 into the corresponding storage space. Figure 4 In the embodiment shown, the area pointed to by R is the cold air flow channel.

[0052] It should be noted that, Figure 1 The air-cooled refrigerator 1000 shown is a double-door refrigerator. The air-cooled refrigerator 1000 of this application is not limited to double-door refrigerators, but also includes refrigerators with other types of doors.

[0053] It should also be noted that, Figure 1The refrigerator compartment of the air-cooled refrigerator 1000 shown is divided into four storage spaces by shelves 406, namely the first storage space 402, the second storage space 403, the third storage space 404 and the fourth storage space 405, wherein each storage space is provided with an air outlet 407 on its side wall.

[0054] It should also be noted that, for Figure 1 In the case of the double-door air-cooled refrigerator 1000 shown, the air duct shown is located on the rear side wall of the casing 401. In addition, it can also be set in the left side wall or in the middle beam 408. Those skilled in the art can set it according to actual usage requirements.

[0055] In a traditional frost-free refrigerator 1000, the air duct structure is located inside the side wall of the refrigerator casing 401, and the fan 601 is located at the lower part of the air duct structure (e.g., Figure 1 As shown, under the action of the fan 601, cold air 201 is blown upwards and then distributed to each storage space through the air outlet 407. As the cold air 201 blows upwards along the air duct, it is obstructed at the very top, causing it to accumulate there and enter the topmost storage space. This can easily lead to the temperature of the topmost storage space being lower than that of the lower storage spaces. (Refer to...) Figures 1 to 4 According to a specific embodiment of the present invention, the air-cooled refrigerator 1000 has an air guide plate that can move up and down on the path of the cold air 201 blown by the fan 601. When the temperature of a certain storage space is too high, the air guide plate moves to the air outlet 407 of the corresponding storage space under the drive of the drive mechanism. The air guide plate then introduces the cold air 201 into the storage space to quickly reduce the temperature of the storage space and improve the temperature uniformity of each storage space. Its structure is simple, the control method is convenient and quick, and it is efficient and practical.

[0056] It should be noted that the air-cooled refrigerator of this application does not have an air duct structure, but relies on the shell to form interconnected channels between the storage spaces for the flow of cold air. For example, in some embodiments, refer to Figure 4 As shown, the casing contains a first storage space 402, a second storage space 403, a third storage space 404, and a fourth storage space 405 arranged sequentially from top to bottom. Furthermore, a channel for cold air flow is formed on one side of each of these storage spaces. This channel connects to each storage space, and a fan blows cold air in a certain direction through the channel, guiding the cold air into the corresponding storage space. Specifically, an air guide assembly is positioned along the cold air path, effectively directing the cold air into the appropriate storage space based on its position.

[0057] In related technologies, air-cooled refrigerators are equipped with air ducts. However, the walls of these ducts may not facilitate the introduction of cold air into the storage space. Furthermore, the air ducts may affect heat exchange between different storage compartments, hindering heat diffusion and temperature uniformity. Therefore, the air-cooled refrigerator of this invention does not require air ducts, thus avoiding these drawbacks.

[0058] It should be noted that in the air-cooled refrigerator 1000 of this embodiment, the shell 401 has air outlets formed between each storage space and the flow channel of the cold air 201. The cold air 201 can enter the storage space from the cold air flow channel through the air outlets. In addition, a space near a certain storage space in the cold air flow channel can be understood as part of that storage space. For example, a space near the fourth storage space 405 in the cold air flow channel can be understood as part of the fourth storage space 405. When the air guide plate stops at this space, it can be understood that the air guide plate stops at the fourth storage space 405.

[0059] Reference Figure 4 In some embodiments, the air guide plate adjusts its position according to the working state of the first drive mechanism. When the air guide plate stops at a certain storage space (that is, stops in the flow channel space of the cold air 201 near the storage space), the air guide plate can introduce more cold air 201 into the storage space. In particular, the shape and angle of the air guide plate can have different effects on the air volume of cold air 201 introduced. There may be a gap between the air guide plate and the adjacent wall, see reference. Figure 4 As shown, the dashed line indicates the movement trajectory of the air guide plate. When the air guide plate stops at the air outlet corresponding to the fourth storage space 405, the cold air 201 can still be delivered upward through the gap between the air guide plate and the side wall of the air duct to cool the first storage space 402, the second storage space 403 and the third storage space 404. However, the presence of the air guide plate will cause more cold air 201 to enter the fourth storage space 405 through the air outlet of the fourth storage space 405, quickly reducing the temperature of the storage space.

[0060] It should be noted that, in this embodiment of the invention, the air guide plate is driven to different positions to adapt to the air outlets 407 corresponding to different storage spaces. Optionally, all air outlets 407 can be evenly spaced, that is, any two adjacent air outlets 407 are equidistant, and the air guide plate is driven to the corresponding air outlet 407 according to a preset distance value. Further optionally, multiple air outlets 407 can be distributed at unequal intervals. The motor in this embodiment of the invention can drive the air guide plate to move according to multiple preset distance values, and can move it to the target position, thereby adjusting the amount of cold air 201 entering the corresponding storage space.

[0061] Optionally, such as Figure 6 and Figure 7 As shown, the air guide can be set as a general flat plate or air-foil 102, that is, a structure that uses the pressure difference of the fluid passing above and below the part to generate lift. When it is set as air-foil 102, it can be selected as flat bottom type, symmetrical type, straight type, downward angle type, etc.

[0062] In some implementations, each storage space is equipped with a temperature sensor (not shown) to detect the temperature within the storage space in real time.

[0063] In this way, temperature detection and temperature information can be obtained for each storage space within the air-cooled refrigerator 1000.

[0064] Specifically, in this embodiment, multiple temperature sensors are provided, located in the first storage space 402, the second storage space 403, the third storage space 404, and the fourth storage space 405. Each storage space can contain a different number of temperature sensors as needed, and temperature sensors can be placed at different locations within the same storage space as required. This allows for the detection of the temperature in each storage space and the temperature at different locations within each storage space. For example, the temperature sensors can be located on the shelf 406 or the side wall of the storage space. It is understood that the temperature sensors detect the temperature at different locations and obtain corresponding temperature information, which can be used to adjust the operating state of the air guide structure. For example, if a high temperature is detected at a certain location in a storage space, requiring cooling, the air guide plate can be moved to that storage space, thereby introducing sufficient cold air 201 for cooling.

[0065] In some embodiments, the air-cooled refrigerator 1000 also includes a controller (not shown), which is configured to: in response to the temperature of a certain storage space being higher than a first preset value, a first drive mechanism drives an air guide plate to move and stop at the corresponding storage space, thereby introducing cold air 201 into the corresponding storage space.

[0066] In this way, the temperature of a storage space can be adjusted based on the temperature information obtained from that storage space.

[0067] Specifically, in this embodiment, different storage spaces can be set with different or the same first preset value. When a storage space is detected to have a temperature higher than the first preset value, the first drive mechanism operates to drive the air guide plate to move and remain in that storage space. The air guide plate introduces sufficient cold air 201 into the storage space for cooling. For example, when the fourth storage space 405 is detected to have a temperature higher than the first preset value by the corresponding temperature sensor, the controller can adjust the cooling effect of the corresponding fourth storage space 405 through control signals, including but not limited to adjusting the air guide plate to move to the fourth storage space 405, thereby adjusting the amount of cold air 201 introduced into the fourth storage space 405. In addition, when the fourth storage space 405 is detected to have a temperature lower than a certain preset threshold by the corresponding temperature sensor, the air guide plate can adjust the airflow of cold air 201 introduced into the storage space by changing its own posture, or the first drive mechanism can drive the air guide plate to move to another position to reduce the amount of cold air 201 entering the fourth storage space 405. It is conceivable that when other storage spaces are detected by the corresponding temperature sensors to meet one of the above conditions, they can also be cooled and regulated by the controller. For details, refer to the regulation process of the fourth storage space 405 mentioned above.

[0068] In some implementations, the controller is also configured to move the drive vane 102 of the first drive mechanism to the top in response to the temperature of all storage spaces being lower than a second preset value.

[0069] Specifically, a second preset value representing the temperature of the storage space can be set as needed. It can be understood that when the temperature of all storage spaces is lower than the second preset value, this situation can be regarded as all storage spaces of the air-cooled refrigerator 1000 do not need the air guide component to participate in temperature regulation. Therefore, the air guide component is configured to drive the air guide plate to move to the top of the cold air 201 flow channel in this situation. In this way, the air guide plate can be regarded as being in a stopped working state. It can be imagined that this can save the power required for the air guide component to work.

[0070] In some embodiments, the first drive mechanism includes a motor and a conveyor belt, with the air guide plate mounted on the conveyor belt. The motor can drive the conveyor belt to move the air guide plate up and down.

[0071] In this way, the air guide plate can be driven to move to the target position.

[0072] Specifically, the air guide plate is mounted on a conveyor belt, and a motor drives the conveyor belt to move the air guide plate. It can be understood that the air guide plate is driven to a position where it can guide air into the storage space. For example, when the fourth storage space 405 needs to introduce more cold air 201, the air guide plate is driven to the fourth storage space 405. The air guide plate can be fixedly mounted on the conveyor belt by means of adhesive, screws, or clips. The conveyor belt can be driven by a motor configured as a unidirectional motor or a bidirectional motor. The motor can change its power to adjust the moving distance of the air guide plate; optionally, a bidirectional motor can change its direction of movement to change the direction of the air guide plate.

[0073] Reference Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the first drive mechanism includes a motor (not shown) and a screw 104, and the air guide plate includes a connecting part 101 and a blade 102. The connecting part 101 is provided with a thread that mates with the screw 104. The motor can drive the screw 104 to rotate, and the screw 104 can drive the air guide plate to move up and down.

[0074] In this way, the air guide plate can be driven to move to the target position.

[0075] Specifically, the screw 104 is configured to allow the air guide plate to move along the flow path of the cold air 201. In this embodiment, the extension direction of the screw 104 is the same as the extension direction of the flow path of the cold air 201. The motor drives the screw 104 to rotate, and the air guide plate can move along the screw 104. The connecting part 101 can be specifically selected according to actual needs, for example, it can be set as a block shape or other shapes. The connecting part 101 only needs to be provided with threads that cooperate with the screw 104, and can drive the air guide plate to move up and down under the rotation of the screw 104. Referring to the figure, the connecting part 101 is set as a cylindrical structure, and the cylindrical structure is provided with internal threads. This configuration allows the connecting part 101 to better support and cooperate with the screw 104, thereby moving up and down along the screw 104 more smoothly.

[0076] In some embodiments, the motor may be selected as a bidirectional motor. Through the cooperation of the connecting part 101 and the screw 104, when the bidirectional motor rotates forward, it drives the air guide plate to move upward, and when the bidirectional motor rotates in reverse, it drives the air guide plate to move downward.

[0077] In some implementations, the motor is selected as a unidirectional motor, and the screw 104 is selected as a reciprocating screw 104 (e.g., Figure 5 (As shown).

[0078] It is understandable that this allows the air guide plate to reciprocate along the screw 104. Specifically, by rotating the motor in the forward or reverse direction, the connecting part 101 can move upward or downward along the screw 104, that is, the air guide plate (blade 102) connected to the connecting part 101 can move upward or downward. In this embodiment, the motor is selected as a unidirectional motor, and the screw 104 is selected as a reciprocating screw 104. By cooperating with the unidirectional motor and the reciprocating screw 104, the unidirectional rotation of the motor can be achieved, which can drive the air guide plate to move up and down, thereby simplifying the structure of the drive mechanism and reducing the production cost of the air-cooled refrigerator 1000.

[0079] In some embodiments, the connecting portion 101 is configured as a cylindrical structure (e.g., Figure 4 As shown), the cylindrical structure has internal threads.

[0080] In this way, the screw 104 can rotate, causing the connecting part 101 to move.

[0081] Specifically, the connecting part 101 has a cylindrical structure, meaning that a through hole is formed inside the connecting part 101 for housing the screw 104. The through hole is adapted to the outer peripheral surface of the screw 104, and the inner wall surface of the through hole is provided with internal threads. The screw 104 rotates, allowing the connecting part 101 to move along the screw 104. It can be understood that the outer peripheral surface of the screw 104 is cylindrical, and the cylindrical shape of the connecting part 101 can adapt to the screw 104. However, this design is not limited to this; in other embodiments, the connecting part 101 can also be configured with other shapes, as long as it can satisfy the requirement that the connecting part 101 moves according to the rotation of the screw 104.

[0082] exist Figure 2 and Figure 3 In the embodiment shown, the first drive mechanism further includes a guide rod 103 arranged parallel to the screw 104. The guide rod 103 has a guide groove on one side facing the screw 104. One end of the wing 102 is connected to the connecting part 101, and the other end is movably disposed in the guide groove.

[0083] In this way, the movement of the air guide plate can be made smoother. It can be understood that one end of the vane 102 is connected to the connecting part 101, and the other end can slide within the guide groove. It is conceivable that the guide groove on the guide rod 103 can provide guidance for the vane 102, making the sliding of the vane 102 more stable.

[0084] In some embodiments, two guide rods 103 are provided, located on both sides of the screw 104 respectively, and two blades 102 are provided, each blade 102 being symmetrically arranged between the screw 104 and each guide rod 103 relative to the screw 104.

[0085] In this way, the screw 104 can be centered, and the blades 102 on both sides of the screw 104 can be guided.

[0086] Specifically, in Figure 2 and Figure 3 In the illustrated embodiment, two vanes 102 are respectively disposed on both sides of the screw 104, allowing the screw 104 to be positioned in the middle of the airflow channel of the cold air 201. Two guide rods 103 are provided, located on both sides of the screw 104, and two vanes 102 are provided, each vane 102 being symmetrically disposed between the screw 104 and each guide rod 103 relative to the screw 104. However, this design is not limited to this; in other optional embodiments, the guide rods 103 can be set to other quantities, and the arrangement of the guide rods 103 (including but not limited to their quantity and position) shall be based on satisfying the aforementioned beneficial effects.

[0087] It is particularly important to note that, in Figure 2 and Figure 3 In the illustrated embodiments, the arrangement of components such as the air guide plate and screw 104 can be considered as an optional implementation of the present invention. This is intended to aid in understanding the technical solution of this application and is merely an exemplary embodiment, not a specific limitation. It is understood that in other embodiments, the air guide plate and screw 104 can be configured in other forms, such as... Figure 8 and Figure 9 The implementation method shown.

[0088] In some implementations, refer to Figure 8 and Figure 9 As shown, the air guide assembly also includes a second drive mechanism (blade drive motor 106) disposed on the first drive mechanism. The blade 102 includes a tip 203 and a trailing edge 202. The blade 102 can rotate under the drive of the second drive mechanism to point the tip 203 or the trailing edge 202 toward the storage space. The blade 102 is a flat-bottomed blade 701 or a downward-tilted blade 801.

[0089] It should be noted that the airfoil 102 is a structure that generates lift by utilizing the pressure difference of the fluid passing above and below the component. When a flat-bottomed airfoil 701 or a downward-sloping airfoil 801 is selected and used as an airflow guiding structure, the diffusion of fluid passing through the airfoil 102 can be controlled by the orientation of the leading edge 203. See details... Figure 5 , 6 As shown.

[0090] Specifically, refer to Figure 9As shown, a blade drive motor 106 is provided on the connecting part 101. The rotation shaft of the drive motor 106 is connected to the bridging part 105 to drive the blade 102 to rotate.

[0091] It should be noted that the rotation mentioned in the embodiments of the present invention can be understood as the rotation of the two ends of the wing 102 along its length about a central axis. Figure 10 Arrow X in the diagram points to the wing 102, which represents the position of the wing before rotation. Arrow Y points to the dashed wing, which can be understood as the position of the wing after rotating a certain angle along the direction indicated by the dashed arrow in the diagram. Similarly, when the wing 102 rotates to a sufficiently large angle, it can be flipped, that is, the trailing edge 202 and the tip 203 of the wing 102 can be interchanged in the vertical direction, thereby adjusting the direction of the cold air introduced by the wing 102.

[0092] It should be noted that, in Figure 7 In the embodiment shown, the flat-bottomed wing 701 has a side surface formed by multiple arc-shaped protrusions, which can guide the flow of cold air 201. This side surface can be set as a smooth convex arc surface, and it only needs to be designed to guide the flow according to the actual situation.

[0093] It should also be noted that, Figure 8 In the embodiment shown, the downward tilting vane 801 has one side surface formed by multiple arc-shaped recesses and another side surface formed by multiple arc-shaped protrusions, both of which can guide the flow of cold air 201. The two side surfaces can be set as smooth arc surfaces, and can be designed to guide the flow according to the actual situation.

[0094] Taking the flat-bottomed 701 winglet as an example, see Figure 5 As shown, when the cold air 201 blows upwards, with the tip 203 of the vane 102 pointing towards the upper left, the cold air 201, as it passes through the vane 102, is guided by the vane 102 and converges, generating a wake. This concentrates the cold air 201 towards the specific position pointed to by the tip 203. See also... Figure 6 As shown, when the cold air 201 blows from bottom to top, the trailing edge 202 of the vane 102 is set towards the upper left. When the cold air 201 passes through the vane 102, it will be guided by the vane 102 and diffused. The tendency of the fluid to dissipate increases, so that the cold air 201 will have a diffusion effect after passing through the vane 102, that is, the effect of cold air diffusion and transportation in the box is achieved.

[0095] The air-cooled refrigerator 1000 of this invention uses a wing 102 configured as a flat-bottomed wing 701 or a downward-tilted wing 801. The wing 102 can be rotated according to actual needs so that the cold air 201 can be concentrated or dispersed into the storage space of the air-cooled refrigerator 1000. This allows for simple and quick adjustment of the airflow state of the cold air 201 blowing into the storage space, improving the temperature uniformity in different areas of the storage space. Its structure and control process are simple, efficient and practical.

[0096] For example, in a specific scenario, when hot food is placed in the refrigerator's storage space, the rotating blade 102 causes the tip 203 to face the food or the area near the food, so that the cold air 201 is concentrated and blown towards the food, which can quickly lower the temperature of the food.

[0097] Understandably, in order to change the orientation of the tip 203 and the trailing edge 202 of the wing 102, the wing 102 must be able to rotate at least 180 degrees, for example, 180 degrees, 240 degrees, 300 degrees or 360 degrees.

[0098] In some implementations, each storage space is provided with at least one temperature sensor (not shown) for detecting the temperature of different areas of the storage space.

[0099] In this way, the temperature at different locations within each storage space can be detected and the corresponding temperature information can be obtained. Thus, the direction of the cold air 201 introduced by the wing 102 can be controlled according to the temperature information.

[0100] Specifically, in this embodiment, multiple temperature sensors are provided in each storage space. These multiple temperature sensors can be distributed at different locations on the wall as needed, thereby detecting the temperature at different locations in each storage space. It can be understood that the temperature sensors detect the temperature at different locations in a storage space and obtain corresponding temperature information, which can be used to adjust the direction of the cold air 201 introduced by the vane 102. Specifically, when a high temperature is detected at a certain location in a storage space, requiring cooling, the overall attitude of the vane 102 can be adjusted so that the cold air 201 introduced by the vane 102 blows towards the area with the higher temperature, thereby achieving better cooling of that location.

[0101] In some embodiments, the air-cooled refrigerator 1000 also includes a controller (not shown), which is configured to: in response to the temperature of a certain area being higher than a second preset value, a first drive mechanism drives the air guide plate to move and stop at the storage space where the certain area is located, and a second drive mechanism drives the vane 102 to rotate so that the tip 203 of the vane 102 is directed toward the certain area.

[0102] In this way, the vane 102 can rotate to cool a certain area.

[0103] In this embodiment, a second preset value representing the temperature of a certain area can be preset. When the temperature of the area is detected to be higher than the second preset value, it can be determined that the area needs to be cooled. Then, the first drive mechanism can drive the air guide plate to move and stop at the storage space where the area is located. By rotating the vane 102 so that its tip 203 faces the area, the cold air 201 flowing through the vane 102 can converge at the position where the tip 203 faces, so that the vane 102 can introduce enough cold air 201 to cool the area.

[0104] According to the above control scheme, rapid and centralized airflow cooling can be achieved based on different areas within the same storage space. Specifically, in one usage scenario: temperature sensors are installed at the bottom (shelf 406), side walls, and top of the storage space to monitor the temperature of shelf 406, side walls, and top in real time. When a user places food with a temperature higher than the storage space's temperature into the storage space, the temperature sensor at shelf 406 detects a temperature rise exceeding a second preset value, such as 4°C. At this point, the vane 102 is driven to rotate, pointing its tip 203 towards the area near the shelf, thus concentrating cold air onto the food for rapid cooling, improving food freshness and shelf life.

[0105] Understandably, the position of the tip 203 can be preset to be slightly forward (i.e., closer to the refrigerator door) relative to the center line of the shelf in the front-back direction (e.g., 5-10 cm forward). This setting allows the cold air to be directed at the food when it is placed on the shelf, thus improving cooling efficiency.

[0106] In some embodiments, the air-cooled refrigerator 1000 also includes a controller configured to: in response to the temperature of all areas of a storage space being higher than a second preset value, a first drive mechanism drives the air guide plate to move and remain at the storage space, and a second drive mechanism drives the vane 102 to rotate so that the trailing edge 202 of the vane 102 faces the storage space.

[0107] In this way, the wing 102 can introduce cold air 201 to cool the entire area of ​​the storage space.

[0108] Specifically, in this embodiment, when the temperature of all areas of the storage space is detected to be higher than the second preset value, it can be determined that all areas of the storage space need to be cooled. In order to cool all areas more quickly, cold air 201 flowing in a diffused manner can be introduced through the vane 102. The first drive mechanism can drive the air guide plate to move and stop at the storage space. By rotating the vane 102 so that its trailing edge 202 faces the storage space, the cold air 201 flowing through the vane 102 can diffuse in the direction of the trailing edge 202, so the cold air 201 can cool all areas of the storage space.

[0109] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A type of air-cooled refrigerator, characterized in that, include: The casing has at least two storage spaces defined inside, and the storage spaces are provided with air vents; A fan is located at the lower part of the housing and is used to blow cold air upwards. The cold air is blown to the corresponding storage space through the air outlet. An air guide assembly is disposed on the flow path of the cold air and includes a first drive mechanism and an air guide plate. There is a gap between the air guide plate and the adjacent wall, so that the cold air can be conveyed upward through the gap between the air guide plate and the side wall of the air duct. The air guide plate can move up and down under the drive of the first drive mechanism and can stop at a certain layer of the storage space. The air guide plate moves to the air outlet of the corresponding storage space to guide the cold air into the corresponding storage space.

2. The air-cooled refrigerator according to claim 1, characterized in that, Each of the storage spaces is equipped with a temperature sensor to monitor the temperature within the storage space in real time.

3. The air-cooled refrigerator according to claim 2, characterized in that, The air-cooled refrigerator also includes a controller, which is configured as follows: In response to a temperature in a storage space exceeding a first preset value, the first driving mechanism drives the air guide plate to move and stop at the corresponding storage space, thereby introducing the cold air into the corresponding storage space.

4. The air-cooled refrigerator according to claim 3, characterized in that, The controller is also configured to: In response to the temperature of all the storage spaces being lower than the second preset value, the first drive mechanism drives the air guide plate to move to the top.

5. The air-cooled refrigerator according to claim 1, characterized in that, The first driving mechanism includes a motor and a conveyor belt. The air guide plate is mounted on the conveyor belt, and the motor can drive the conveyor belt to move the air guide plate up and down.

6. The air-cooled refrigerator according to claim 1, characterized in that, The first driving mechanism includes a motor and a screw, and the air guide plate includes a connecting part and a blade. The connecting part is provided with a thread that cooperates with the screw. The motor can drive the screw to rotate, and the screw can drive the air guide plate to move up and down.

7. The air-cooled refrigerator according to claim 6, characterized in that, The motor is selected as a unidirectional motor, and the screw is selected as a reciprocating screw.

8. The air-cooled refrigerator according to claim 6, characterized in that, The connecting part is configured as a cylindrical structure, and the cylindrical structure is provided with internal threads.

9. The air-cooled refrigerator according to claim 6, characterized in that, The first driving mechanism further includes a guide rod arranged parallel to the screw, the guide rod having a guide groove on one side facing the screw, one end of the winglet being connected to the connecting part, and the other end being movably disposed in the guide groove.

10. The air-cooled refrigerator according to claim 9, characterized in that, Two guide rods are provided, located on both sides of the screw respectively. Two winglets are provided, each winglet being symmetrically arranged between the screw and each guide rod relative to the screw.

11. The air-cooled refrigerator according to claim 1, characterized in that, The air guide assembly further includes a second drive mechanism disposed on the first drive mechanism. The air guide plate includes a tip and a trailing edge. The air guide plate can rotate under the drive of the second drive mechanism to orient the tip or the trailing edge toward the storage space. The air guide plate is a flat-bottomed wing or a downward-sloping wing.

12. The air-cooled refrigerator according to claim 11, characterized in that, Each of the storage spaces is equipped with at least two temperature sensors for detecting the temperature in different areas of the storage space.

13. The air-cooled refrigerator according to claim 12, characterized in that, The air-cooled refrigerator also includes a controller, which is configured as follows: In response to a temperature in a certain area being higher than a second preset value, the first driving mechanism drives the air guide plate to move and stop at the storage space where the certain area is located, and the second driving mechanism drives the air guide plate to rotate so that the tip of the air guide plate is directed toward the certain area.

14. The air-cooled refrigerator according to claim 12, characterized in that, The air-cooled refrigerator also includes a controller, which is configured as follows: In response to the temperature of all areas of a certain storage space being higher than a second preset value, the first driving mechanism drives the air guide plate to move and stop at the storage space, and the second driving mechanism drives the air guide plate to rotate so that the trailing edge of the air guide plate faces the storage space.

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