Large-capacity back-through cooling air duct for side-by-side refrigerator with opposite doors

Abstract

The utility model discloses a large capacity split door air -cooled refrigerator back through cold -stored air duct, including plastic cover, the back top of plastic cover is provided with air duct coaming, the inside of air duct coaming is provided with cold -stored air duct chamber, the one side of air duct coaming is provided with air intake, the inside rotation connection of plastic cover in cold -stored air duct chamber has air deflector, the top of plastic cover in air deflector is provided with first air supply port. The utility model relates to split door refrigerator cold -stored air duct technical field, solved in the prior art, the inside height of large capacity cold storage chamber often exceeds 1.6m, and the air supply of cold air in the space corresponding to the shelf or drawer below the cold storage chamber cannot be adjusted separately, resulting in the temperature uniformity of whole cold storage chamber is poor, such as the space temperature near the air intake of cold air is lower, and the space temperature away from the air intake of cold air is higher, and the experience effect of product is seriously affected.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigeration air ducts for side-by-side refrigerators, specifically a back-to-back refrigeration air duct for a large-capacity side-by-side air-cooled refrigerator. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a consumer product that keeps food or other items at a constant low temperature. Large-capacity side-by-side frost-free refrigerators have become a popular choice for modern families due to their large capacity, frost-free operation, and precise compartmentation. The air ducts of large-capacity side-by-side frost-free refrigerators are arranged in the upper part of the refrigerator compartment. By setting multiple air outlets at different heights, it is ensured that the cold air is evenly distributed to all corners of the refrigerator compartment. In the current technology, the internal height of large-capacity refrigerator compartments often exceeds 1.6m. The air volume of the corresponding spaces of the shelves or drawers below the refrigerator compartment cannot be adjusted individually, resulting in poor temperature uniformity throughout the refrigerator compartment. For example, the temperature of the space near the cold air inlet is lower, while the temperature of the space farther away from the cold air inlet is higher, which seriously affects the user experience. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a large-capacity side-by-side frost-free refrigerator with a through-flow cooling duct. This solves the problem that in existing technologies, the internal height of large-capacity refrigerator compartments often exceeds 1.6m, and the airflow to the corresponding spaces of the shelves or drawers below the refrigerator compartment cannot be adjusted individually. This results in poor temperature uniformity throughout the refrigerator compartment, such as lower temperatures near the air inlet and higher temperatures in spaces further away from the air inlet, which seriously affects the user experience.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large-capacity side-by-side frost-free refrigerator with a through-flow refrigeration air duct, comprising a plastic cover, an air duct enclosure provided on the top of the back of the plastic cover, a refrigeration air duct cavity provided inside the air duct enclosure, an air inlet provided on one side of the air duct enclosure, an air guide strip rotatably connected to the plastic cover inside the refrigeration air duct cavity, a first air outlet provided above the air guide strip on the plastic cover, and equidistant air outlets provided below the air duct enclosure on the plastic cover. A second air outlet is provided, which is connected to the refrigerated air duct cavity. An air volume adjustment plate is fixedly connected to the bottom of the second air outlet. A servo stepper motor is provided on the side of the air guide strip away from the air inlet. A connecting rod is fixedly connected to the output end of the servo stepper motor. The end of the connecting rod is in clearance fit with the air guide strip. A vertical plate is fixedly connected to the bottom of the inner wall of the air duct enclosure on the side away from the air inlet. A silicone strip is fixedly connected to the top of the vertical plate. The end of the silicone strip away from the vertical plate is fixedly connected to the air guide strip.

[0005] Preferably, an air outlet enclosure is provided on the back of the second air outlet, and an adjusting baffle is rotatably connected to the inner wall of the air outlet enclosure at equal intervals. A guide groove is provided above the adjusting baffle on the air outlet enclosure. A vertical rod is provided on the top of the adjusting baffle, and the vertical rod is in clearance fit with the guide groove. A linkage plate is provided on the top of the air outlet enclosure, and the vertical rod is rotatably connected to the linkage plate.

[0006] Preferably, the interior of the refrigerated air duct cavity is provided with air duct foam above the first air outlet.

[0007] Preferably, the plastic cover is provided with air-gathering baffles on both sides of the bottom of the air duct enclosure, and a foam sealing strip is provided on the side of the air-gathering baffles that are far apart from each other.

[0008] Preferably, the silicone strip has reinforcing ribs evenly spaced on the side away from the air inlet.

[0009] This utility model provides a large-capacity side-by-side frost-free refrigerator with a through-back refrigeration air duct. It offers the following advantages: This through-back refrigeration air duct, through the cooperation of a plastic cover, duct surround, refrigeration air duct cavity, air inlet, air guide strip, first air outlet, second air outlet, air volume adjustment plate, servo stepper motor, connecting rod, vertical plate, and silicone strip, transforms the refrigerator's refrigeration air duct into a through-back design. This ensures that each compartment of the entire refrigerator has a corresponding air outlet for cold air delivery. Furthermore, by adjusting the angle of the air guide strip and optimizing the structure of each air volume adjustment plate, precise control of the cold air delivery volume can be achieved, ensuring more orderly and efficient cold air flow. This, in turn, guarantees temperature uniformity within the refrigerator compartment of the large-capacity side-by-side refrigerator, thus improving the refrigerator's refrigeration effect and user satisfaction.

[0010] Through the cooperation of the second air outlet, air outlet surround, adjusting partition, guide groove, vertical rod and linkage plate, and by setting multiple adjusting partitions on the inner side of the second air outlet, foreign objects are prevented from entering the air duct through the second air outlet. At the same time, the air supply area of ​​the second air outlet can be adjusted by rotating the adjusting partitions according to actual needs, and the air supply volume of the corresponding space of the lower shelf or drawer can be adjusted individually. This allows users to adjust the air supply volume of different height spaces in the refrigerator compartment according to actual needs, which helps to improve the use effect of the refrigerator and user satisfaction. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a front view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the appearance of the present utility model;

[0014] Figure 4 for Figure 1 A magnified view of a portion of region A in the middle;

[0015] Figure 5 for Figure 3 A magnified view of a portion of region B in the middle.

[0016] In the diagram: 1. Plastic cover; 2. Duct enclosure; 3. Refrigerated air duct cavity; 4. Air inlet; 5. Air guide strip; 6. First air outlet; 7. Second air outlet; 8. Air volume regulating plate; 9. Servo stepper motor; 10. Connecting rod; 11. Vertical plate; 12. Silicone tape; 13. Air outlet enclosure; 14. Adjusting baffle; 15. Guide groove; 16. Vertical rod; 17. Linkage plate; 18. Duct foam; 19. Foam sealing strip; 20. Reinforcing rib; 21. Air concentrator baffle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In existing technologies, the internal height of large-capacity refrigerator compartments often exceeds 1.6m. The airflow of the corresponding space for the shelves or drawers below the refrigerator compartment cannot be adjusted individually, resulting in poor temperature uniformity throughout the refrigerator compartment. For example, the temperature of the space near the air inlet is lower, while the temperature of the space far from the air inlet is higher, which seriously affects the user experience of the product.

[0019] In view of this, this utility model provides a back-to-back cold air duct for a large-capacity side-by-side refrigerator. Through the cooperation of a plastic cover, duct surround, cold air duct cavity, air inlet, air guide strip, first air outlet, second air outlet, air volume adjustment plate, servo stepper motor, connecting rod, vertical plate, and silicone strip, the refrigerator's cold air duct is modified to be a back-to-back design. This ensures that each compartment of the entire refrigerator has a corresponding air outlet for cold air delivery. Furthermore, by adjusting the angle of the air guide strip and optimizing the structure of each air volume adjustment plate, the cold air delivery volume is precisely controlled, ensuring more orderly and efficient cold air flow. This guarantees the uniformity of cold air delivery volume in each compartment of the refrigerator, thereby ensuring temperature uniformity within the large-capacity side-by-side refrigerator, improving the refrigerator's cooling effect and user satisfaction.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0021] Depend on Figure 1-5 It is known that a large-capacity side-by-side frost-free refrigerator with a through-flow refrigeration air duct includes a plastic cover 1, an air duct enclosure 2 on the top of the back of the plastic cover 1, a refrigeration air duct cavity 3 inside the air duct enclosure 2, an air inlet 4 on one side of the air duct enclosure 2, an air guide strip 5 rotatably connected to the plastic cover 1 inside the refrigeration air duct cavity 3, a first air outlet 6 above the plastic cover 1 above the air guide strip 5, and second air outlets 7 equidistantly arranged below the plastic cover 1 below the air duct enclosure 2. The second air outlet 7 is connected to the refrigerated air duct cavity 3. The bottom of the second air outlet 7 is fixedly connected to the air volume adjustment plate 8. The side of the air guide strip 5 away from the air inlet 4 is provided with a servo stepper motor 9. The output end of the servo stepper motor 9 is fixedly connected to a connecting rod 10. The end of the connecting rod 10 is clearance-fitted with the air guide strip 5. The bottom of the inner wall of the air duct enclosure 2 is fixedly connected to a vertical plate 11 on the side away from the air inlet 4. The top of the vertical plate 11 is fixedly connected to a silicone strip 12. The end of the silicone strip 12 away from the vertical plate 11 is fixedly connected to the air guide strip 5.

[0022] In the specific implementation process, it is worth noting that the effective construction of the refrigerated air duct cavity 3 is achieved through the cooperation between the plastic cover 1, the air duct enclosure 2, the refrigerated air duct cavity 3, and the air inlet 4. The air inlet 4 serves as the inlet for cold air, ensuring that cold air can enter the refrigerated air duct cavity 3 evenly and efficiently. Through the cooperation between the plastic cover 1, the air duct enclosure 2, the refrigerated air duct cavity 3, the air inlet 4, the air guide strip 5, the first air outlet 6, and the second air outlet 7, when cold air is transported from the air inlet 4 into the refrigerated air duct cavity 3, the air guide strip 5 divides the cold air into two parts. The cold air flowing above the air guide strip 5 enters the refrigerated storage space through the first air outlet 6, while the cold air flowing below the air guide strip 5 enters the bottom of the air duct enclosure 2 through the opening at the bottom of the air duct enclosure 2. In the cold air duct, the cold air enters the corresponding space of the shelf or drawer below the refrigerator compartment through each second air outlet 7, realizing the layered delivery of cold air. Through the cooperation between the second air outlet 7 and the air volume regulating plate 8, the air volume regulating plate 8 extends from the bottom of the second air outlet 7 into the inner side of the air duct. The extension length of each air volume regulating plate 8 increases from top to bottom. Among them, the second air outlet 7 at the bottom does not have an air volume regulating plate 8, so that each second air outlet 7 can form an air delivery area that gradually increases from top to bottom. This ensures the uniformity of the cold air delivery volume into the corresponding space of the shelf or drawer below the refrigerator compartment, and improves the uniformity of the overall temperature distribution of the refrigerator compartment. This is achieved through the plastic cover plate 1, the air duct enclosure 2, the refrigerator air duct cavity 3, the air guide strip 5, the servo stepper motor 9, and the connecting The connection between the rods 10 is controlled by the servo stepper motor 9, which drives the connecting rods 10 to rotate. During this rotation, the connecting rods 10 also rotate the air guide strips 5, adjusting their angle and thus changing the distribution ratio of cold air to the first air outlet 6 and the second air outlet 7. This allows for precise adjustment of the cold air volume at different heights within the refrigerator compartment, meeting diverse user needs. Through the cooperation between the duct enclosure 2, air guide strips 5, vertical plate 11, and silicone strip 12, the silicone strip 12 divides the internal space of the refrigerator duct cavity 3 and guides the cold air entering below the air guide strips 5, ensuring more precise delivery to the opening at the bottom of the duct enclosure 2. This ensures more orderly and efficient cold air flow, reducing the amount of cold air trapped in the airflow. To mitigate spillover losses during the process, the refrigerator's refrigeration air duct is modified into a through-type design through the coordination of the plastic cover 1, air duct enclosure 2, refrigeration air duct cavity 3, air inlet 4, air guide strip 5, first air outlet 6, second air outlet 7, air volume adjustment plate 8, servo stepper motor 9, connecting rod 10, vertical plate 11, and silicone strip 12. This ensures that each compartment of the refrigerator has a corresponding air outlet for cold air delivery. Furthermore, by adjusting the angle of the air guide strip 5 and optimizing the structure of each air volume adjustment plate 8, the cold air delivery volume is precisely controlled, ensuring more orderly and efficient cold air flow. This guarantees the uniformity of cold air delivery volume in each compartment of the refrigerator, thereby ensuring temperature uniformity within the large-capacity side-by-side refrigerator, improving the refrigerator's refrigeration effect and user satisfaction.The specific model of the servo stepper motor 9 is not limited; any model that meets the usage requirements is acceptable.

[0023] Furthermore, an air outlet enclosure 13 is provided on the back of the second air outlet 7. An adjusting baffle 14 is rotatably connected to the inner wall of the air outlet enclosure 13 at equal intervals. A guide groove 15 is provided above the adjusting baffle 14 in the air outlet enclosure 13. A vertical rod 16 is provided on the top of the adjusting baffle 14. The vertical rod 16 is clearance-fitted with the guide groove 15. A linkage plate 17 is provided on the top of the air outlet enclosure 13. The vertical rod 16 is rotatably connected to the linkage plate 17.

[0024] In the specific implementation process, it is worth noting that through the cooperation between the second air outlet 7, the air outlet enclosure 13, the adjusting partition 14, the guide groove 15, the vertical rod 16 and the linkage plate 17, and by setting multiple adjusting partitions 14 on the inner side of the second air outlet 7, foreign objects are prevented from entering the air duct through the second air outlet 7. At the same time, the air supply area of ​​the second air outlet 7 can be adjusted by rotating the adjusting partition 14 according to actual needs, so as to adjust the air supply volume of the corresponding space of the lower shelf or drawer, making it convenient for users to adjust the air supply volume of the space at different heights of the refrigerator compartment according to actual needs.

[0025] Furthermore, an air duct foam 18 is provided inside the refrigerated air duct cavity 3 above the first air outlet 6. The air duct foam 18 is used to ensure that the cold air is directionally delivered to the first air outlet 6, reduce the loss of cold air during the delivery process, and improve the refrigeration efficiency.

[0026] In the specific implementation process, it is worth noting that the duct foam 18 is used to ensure that the cold air is directionally delivered to the first air outlet 6, reduce the loss of cold air during the delivery process, and improve the cooling efficiency.

[0027] Furthermore, both sides of the bottom of the plastic cover plate 1 and the air duct enclosure plate 2 are provided with air-gathering baffles 21, and foam sealing strips 19 are provided on the side of the air-gathering baffles 21 that are far apart from each other.

[0028] In the specific implementation process, it is worth noting that through the cooperation between the plastic cover plate 1, the foam sealing strip 19 and the air-concentrating baffle 21, the air-concentrating baffle 21 forms an isolation on both sides of the second air outlet 7, and the foam sealing strip 19 enhances the sealing between the air-concentrating baffle 21 and the inner back panel of the refrigerator, ensuring the concentrated delivery of cold air to the second air outlet 7, preventing the leakage of cold air, improving the refrigeration effect, and further ensuring the effective utilization of cold air;

[0029] Furthermore, the silicone strip 12 is provided with reinforcing ribs 20 at equal intervals on the side away from the air inlet 4;

[0030] In the specific implementation process, it is worth noting that the reinforcing rib 20 is used to improve the structural strength and stability of the silicone strip 12, avoid excessive deformation under wind force, and ensure that the silicone strip 12 forms a stable guiding effect on the cold air.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-capacity side-by-side frost-free refrigerator with a back-flow refrigeration air duct, comprising a plastic cover (1), characterized in that: A duct enclosure (2) is provided on the top back of the plastic cover (1). A refrigerated air duct cavity (3) is provided inside the duct enclosure (2). An air inlet (4) is provided on one side of the duct enclosure (2). A guide strip (5) is rotatably connected to the plastic cover (1) inside the refrigerated air duct cavity (3). A first air outlet (6) is provided above the guide strip (5) on the plastic cover (1). A second air outlet (7) is provided equidistantly below the duct enclosure (2) on the plastic cover (1). The second air outlet (7) is connected to the refrigerated air duct cavity (3). An air volume regulating plate (8) is fixedly connected to the bottom of the air outlet (7). A servo stepper motor (9) is provided on the side of the air guide strip (5) away from the air inlet (4). A connecting rod (10) is fixedly connected to the output end of the servo stepper motor (9). The end of the connecting rod (10) is clearance-fitted with the air guide strip (5). A vertical plate (11) is fixedly connected to the bottom of the inner wall of the air duct enclosure (2) on the side away from the air inlet (4). A silicone strip (12) is fixedly connected to the top of the vertical plate (11). The end of the silicone strip (12) away from the vertical plate (11) is fixedly connected to the air guide strip (5).

2. The large-capacity side-by-side frost-free refrigerator with a through-flow cooling duct according to claim 1, characterized in that: The back of the second air outlet (7) is provided with an air outlet enclosure (13). An adjusting partition (14) is rotatably connected to the inner wall of the air outlet enclosure (13) at equal intervals. A guide groove (15) is provided above the adjusting partition (14) of the air outlet enclosure (13). A vertical rod (16) is provided at the top of the adjusting partition (14). The vertical rod (16) is in clearance fit with the guide groove (15). A linkage plate (17) is provided at the top of the air outlet enclosure (13). The vertical rod (16) is rotatably connected to the linkage plate (17).

3. The large-capacity side-by-side frost-free refrigerator with a through-flow cooling duct according to claim 1, characterized in that: The interior of the refrigerated air duct cavity (3) is provided with air duct foam (18) above the first air outlet (6).

4. The large-capacity side-by-side frost-free refrigerator with a through-flow cooling duct as described in claim 1, characterized in that: The plastic cover plate (1) is provided with wind-gathering baffles (21) on both sides of the bottom of the air duct enclosure (2), and a foam sealing strip (19) is provided on the side of the wind-gathering baffles (21) that is far apart from each other.

5. The large-capacity side-by-side frost-free refrigerator with a through-flow cooling duct according to claim 1, characterized in that: The silicone strip (12) is provided with reinforcing ribs (20) at equal intervals on the side away from the air inlet (4).

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