Air duct assembly and refrigerator

Abstract

The invention provides an air duct assembly and a refrigerator. The air duct assembly comprises a refrigeration air duct and a refrigeration space which are arranged in a refrigerator body. The refrigeration air duct is communicated with the refrigeration space; the refrigeration space has an air drying function and a storage function; the refrigeration air duct comprises a refrigeration cavity, a first air duct and a second air duct, the refrigeration cavity is provided with an air inlet and an air outlet, and the air outlet is formed in the refrigeration space; the wing plate is arranged in the refrigeration chamber, and the wing plate is rotationally connected into the refrigeration chamber; the stop block is arranged on the side wall of the refrigeration chamber; when the refrigeration space is set to have the air drying function, the wing plate abuts against the top face of the refrigeration cavity, and cold air entering from the air inlet flows to the air outlet through the first face of the wing plate. When the refrigeration space is set to have the storage function, the wing plates abut against the check blocks, and cold air entering from the air inlet flows to the air outlet through the first faces and the second faces of the wing plates, so that the problem that an existing storage special area of the refrigerator with the air drying function can only achieve the air drying function and cannot achieve the storage function is solved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to an air duct assembly and a refrigerator. Background Art

[0002] With the acceleration of the pace of modern life and the continuous improvement of people's requirements for quality of life, refrigerators, as indispensable electrical appliances in family life, have increasingly diversified functional requirements. In recent years, the air-drying function has gradually become a major selling point in the refrigerator market because it can effectively extend the shelf life of food and provide a variety of food processing methods. More and more refrigerator products have begun to have built-in air-drying function areas to meet consumers' needs for quick drying and long-term storage of food.

[0003] However, the air drying function requires blowing the food directly at a high wind speed within a specific time to achieve the purpose of rapid drying. In this process, the control of wind speed and blowing direction is crucial, as they directly affect the efficiency and effect of air drying. Currently, the above function is achieved by setting up a special air drying area.

[0004] However, the air-drying area can only realize the air-drying function and cannot store food normally, resulting in a small storage space in the refrigerator and a relatively cramped usable space. How to ensure that the air-drying area can realize both the air-drying function and the storage function is an issue that urgently needs to be solved. Summary of the invention

[0005] The present application provides an air duct assembly and a refrigerator to solve the technical problem that the storage area of ​​the current refrigerator with an air drying function can only realize the air drying function but cannot realize the storage function.

[0006] The first aspect of the present application provides an air duct assembly, comprising:

[0007] A refrigeration duct and a refrigeration space are arranged in the box; the refrigeration duct is connected to the refrigeration space; the refrigeration space is provided with a drying function and a storage function;

[0008] The refrigeration air duct comprises:

[0009] A refrigeration chamber, wherein the refrigeration chamber is provided with an air inlet and an air outlet, and the air outlet is arranged in the refrigeration space;

[0010] And, arranged in the refrigeration chamber:

[0011] A wing plate, the wing plate is rotatably connected to the refrigeration chamber, and the wing plate has a first surface and a second surface opposite to each other;

[0012] A stopper, the stopper being relatively arranged on the side wall of the refrigeration chamber, and the projection of the wing plate in the direction of the stopper completely covering the stopper;

[0013] Among them, when the refrigeration space is set to the air-drying function, the wing plate abuts against the top surface of the refrigeration chamber, and the cold air entering the air inlet passes through the first surface of the wing plate to the air outlet; when the refrigeration space is set to the storage function, the wing plate abuts against the block, and the cold air entering the air inlet passes through the first surface and the second surface of the wing plate to the air outlet.

[0014] In some embodiments, axial holes are disposed opposite to each other on the side walls of the refrigeration chamber;

[0015] A connecting shaft is provided on one side of the wing plate, and the connecting shaft is provided on one side of the wing plate along the length direction of the wing plate;

[0016] Wherein, the wing plate is rotatably connected to the refrigeration chamber by the connection shaft being clamped in the shaft hole.

[0017] In some embodiments, the curvature of the second surface is greater than that of the first surface, and the second surface is close to the top surface of the refrigeration chamber.

[0018] In some embodiments, when the wing plate abuts against the stopper, the direction of the wing plate is parallel to the bottom surface of the refrigeration chamber.

[0019] In some embodiments, when the refrigeration space is set to the air drying function, the wind speed of the cold air entering the air inlet is a first wind speed; when the refrigeration space is set to the storage function, the wind speed of the cold air entering the air inlet is a second wind speed; the first wind speed is greater than the second wind speed.

[0020] In some embodiments, a notch is provided on the bottom surface of the refrigeration chamber, and the notch is provided on a side close to the air inlet;

[0021] The projection of the notch toward the wing plate partially covers the wing plate.

[0022] In some embodiments, an elastic strip is provided at the abutment portion between the wing plate and the top surface of the refrigeration chamber, and the elastic strip is provided on the top surface of the refrigeration chamber along the length direction of the refrigeration chamber.

[0023] In some embodiments, the air duct assembly further includes:

[0024] A cover plate, the cover plate being slidably connected to a partition frame arranged opposite to the box body;

[0025] A drawer is slidably connected to the box body, and the refrigeration space is formed between the drawer and the cover plate.

[0026] In some embodiments, the diameter of the air inlet is greater than the diameter of the air outlet.

[0027] A second aspect of the present application provides a refrigerator, comprising:

[0028] An air duct assembly as described in any one of the first aspects above.

[0029] The present application provides an air duct assembly and a refrigerator, the air duct assembly comprising: a refrigeration air duct and a refrigeration space arranged in a box body; the refrigeration air duct is connected to the refrigeration space; the refrigeration space is provided with an air drying function and a storage function; the refrigeration air duct comprises: a refrigeration chamber, the refrigeration chamber is provided with an air inlet and an air outlet, the air outlet is arranged in the refrigeration space; and, arranged in the refrigeration chamber: a wing plate, the wing plate is rotatably connected in the refrigeration chamber, the wing plate is relatively provided with a first surface and a second surface; a stopper, the stopper is arranged on the side of the refrigeration chamber The projection of the wing plate in the direction of the block completely covers the block; wherein, when the refrigeration space is set to the air-drying function, the wing plate abuts against the top surface of the refrigeration chamber, and the cold air entering the air inlet passes through the first surface of the wing plate to the air outlet; when the refrigeration space is set to the storage function, the wing plate abuts against the block, and the cold air entering the air inlet passes through the first surface and the second surface of the wing plate to the air outlet, so as to solve the problem that the storage area of ​​the current refrigerator with the air-drying function can only realize the air-drying function but cannot realize the storage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 It is a schematic diagram of the structure of the air duct assembly in this application;

[0032] Figure 2 This is a schematic diagram of the structure of the box in this application;

[0033] Figure 3 This is the first schematic diagram of the air duct assembly in the box in this application;

[0034] Figure 4 This is a second schematic diagram of the air duct assembly in the box in this application;

[0035] Figure 5 This is a schematic diagram of the structure of the cooling air duct at a certain angle in this application;

[0036] Figure 6 This is a schematic diagram of the structure of the cooling air duct in this application at another angle;

[0037] Figure 7 This is a schematic diagram of the structure of a cooling air duct in an embodiment of the present application;

[0038] Figure 8 It is a structural schematic diagram of the wing plate in this application;

[0039] Fig. 9 This is a schematic diagram of the structure of the refrigeration chamber in this application.

[0040] Description of reference numerals:

[0041] 1-box body; 11-partition frame; 2-refrigeration air duct; 21-refrigeration chamber; 211-air inlet; 212-air outlet; 213-axis hole; 214-notch; 22-wing plate; 221-connecting shaft; 23-stopper; 3-cover plate; 4-drawer. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0043] Since in some technologies, the storage area of ​​a refrigerator with an air drying function can only realize the air drying function but cannot realize the storage function, in order to solve this technical problem, the present application provides an air duct assembly and a refrigerator. The structures of the various parts of the air duct assembly and the refrigerator are described below:

[0044] For example, a refrigerator currently equipped with an air-drying function is provided with an air-drying zone. The air-drying function of the refrigerator will only be activated when needed. Due to its air duct structure, the food placed in the air-drying zone is directly blown by the wind. Under normal circumstances, the air-drying zone cannot store food. How to ensure that the air duct structure takes into account the needs of both usage states at the same time is a problem that urgently needs to be solved.

[0045] like Figure 2 As shown, it is a schematic diagram of the structure of the box body 1 in this application.

[0046] In view of the above problems, the first aspect of the present application provides an air duct assembly, including:

[0047] A refrigeration duct 2 and a refrigeration space are arranged in the box body 1; the refrigeration duct 2 is communicated with the refrigeration space; the refrigeration space is provided with an air-drying function and a storage function; when the refrigeration space is set to the air-drying function, the wind speed of the refrigeration duct 2 is increased, and the cold wind blows directly to the bottom of the refrigeration space, so that the food placed in the refrigeration space can be air-dried; when the refrigeration space is set to the storage function, the wind speed of the refrigeration duct 2 is reduced, and the cold wind is evenly blown into the refrigeration space, so that the refrigeration demand of the food can be met and the storage function of the food can be realized.

[0048] Exemplarily, the air-drying function and storage function of the refrigerator can be controlled by buttons or the display panel of the refrigerator, which is not limited here. The operating power of the refrigeration equipment can be modulated by the control buttons corresponding to the air-drying function and the storage function. When the refrigerator is in the air-drying function, the operating power of the refrigeration equipment is larger, and the corresponding cold air speed entering the refrigeration space is larger; when the refrigerator is in the storage function, the operating power of the refrigeration equipment is smaller, and the corresponding cold air speed entering the refrigeration space is smaller.

[0049] like Figure 1 Shown is a schematic structural diagram of the air duct assembly in this application.

[0050] like Figure 3 and Figure 4 As shown, it is a schematic diagram of the structure of the refrigeration air duct 2 in the box body 1 in this application.

[0051] The refrigeration air duct 2 comprises:

[0052] A refrigeration chamber 21, wherein the refrigeration chamber 21 is provided with an air inlet 211 and an air outlet 212, wherein the air outlet 212 is arranged in the refrigeration space; the refrigeration chamber 21 is used to place air duct components including: a wing plate 22, a block 23, etc., and one end of the refrigeration chamber 21 is connected to a refrigeration device, and serves as an air inlet 211 to transmit cold air to the air outlet 212, thereby providing cold air to the refrigeration space.

[0053] like Figures 5 to 7 As shown, it is a schematic diagram of the structure of the refrigeration duct 2 in this application.

[0054] And, arranged in the refrigeration chamber 21:

[0055] The wing plate 22 is rotatably connected to the refrigeration chamber 21, and the wing plate 22 has a first surface and a second surface relatively arranged therein; the wing plate 22 is used to adjust the transmission direction of the cold air, so as to realize that the refrigeration space simultaneously combines the storage function and the air-drying function.

[0056] The stopper 23 is relatively arranged on the side wall of the refrigeration chamber 21, and the projection of the wing plate 22 in the direction of the stopper 23 completely covers the stopper 23; the stopper 23 is used to abut against the wing plate 22 to realize the storage function of the refrigeration space.

[0057] Among them, when the refrigeration space is set to the air-drying function, the flap 22 abuts against the top surface of the refrigeration chamber 21, and the cold air entering the air inlet 211 passes through the first surface of the flap 22 to the air outlet 212; when the refrigeration space is set to the storage function, the flap 22 abuts against the block 23, and the cold air entering the air inlet 211 passes through the first surface and the second surface of the flap 22 to the air outlet 212.

[0058] The present application provides an air duct assembly. When the refrigeration space is set to an air drying function, by adjusting the shape of the wing plate 22 arranged in the refrigeration chamber 21, when the wing plate 22 is controlled to abut against the top surface of the refrigeration chamber 21, the cold air coming out of the air inlet 211 passes through the first surface of the wing plate 22 and the bottom surface of the refrigeration chamber 21 to the air outlet 212. When the cold air flows from the air inlet 211 through the air outlet 212, the pipe diameter gradually decreases, so the wind speed gradually increases, thereby air-drying the food in the refrigeration space.

[0059] The present application proposes an air duct assembly, which aims to optimize the refrigeration and air-drying performance of the refrigerator to meet the needs of different usage scenarios. Specifically, the air duct assembly realizes effective regulation of the air duct by flexibly adjusting the position and shape of the wing plate 22 located inside the refrigeration chamber 21, thereby accurately controlling the flow direction and flow rate of the cold air, and meeting the different needs of the refrigerator in the air-drying and storage modes. In the air-drying function mode, the user can adjust the wing plate 22 through the control mechanism so that it fits tightly to the top surface of the refrigeration chamber 21. When the cold air enters from the air inlet 211, flows along the first surface of the wing plate 22 and the bottom surface of the refrigeration chamber 21 until it reaches the air outlet 212, the flow rate of the cold air naturally accelerates due to the gradual narrowing of the air duct, forming a strong air-drying effect. This design not only accelerates the air circulation in the refrigeration space, but also effectively increases the wind speed, so that the moisture on the surface of the food can be evaporated quickly, achieving the purpose of efficient air drying, and is particularly suitable for food storage scenarios that require rapid drying.

[0060] When the refrigerator switches to the storage function mode, the position of the wing plate 22 needs to be adjusted accordingly so that it contacts the preset block 23. At this time, after the cold air flows in from the air inlet 211, its flow path becomes more complicated and dispersed: the cold air not only travels along the wall of the refrigeration chamber 21, but also passes through the first and second surfaces of the wing plate 22, and finally converges at the air outlet 212, so that the cold air is distributed more evenly in the refrigeration space, avoiding the cold air from blowing directly on the surface of the food, reducing the risk of food damage caused by local overcooling, and ensuring the freshness and taste of the food during storage. At the same time, the evenly distributed cold air can also effectively improve the temperature consistency of the entire refrigeration space, providing a more stable storage environment for the food. In summary, the air duct assembly proposed in this application realizes the intelligent control of the refrigerator air cooling system by adjusting the position and shape of the wing plate 22, which not only meets the requirements for efficient wind speed and directional airflow in the air-drying mode, but also takes into account the requirements for temperature uniformity and food protection in the storage mode.

[0061] like Fig. 9 As shown, it is a schematic structural diagram of the refrigeration chamber 21 in the present application.

[0062] In this embodiment, an axial hole 213 is relatively arranged on the side wall of the refrigeration chamber 21 ; the axial hole 213 is relatively arranged on the side wall of the refrigeration chamber 21 , and is arranged on a side close to the air outlet 212 , and the axial hole 213 is used to install the wing plate 22 .

[0063] like Figure 8 The above is a schematic diagram of the structure of the wing plate 22 in this application.

[0064] A connecting shaft 221 is provided on one side of the wing plate 22, and the connecting shaft 221 is provided on one side of the wing plate 22 along the length direction of the wing plate 22; the length of the connecting shaft 221 is slightly greater than the length of the wing plate 22, and the connecting shaft 221 that exceeds the length of the wing plate 22 is engaged with the shaft hole 213 as a connecting end, so that the wing plate 22 can be rotatably connected to the refrigeration chamber 21.

[0065] The wing plate 22 is rotatably connected to the refrigeration chamber 21 by the connection shaft 221 being clamped in the shaft hole 213 .

[0066] In this embodiment, the curvature of the second surface is set to be greater than that of the first surface, and the efficiency of the entire structure in the refrigeration process is significantly improved by using the principle of aerodynamics. In the present application, the curvature of the first surface of the wing plate 22 is set to be less than that of the second surface. When the cold air pouring in from the air inlet 211 enters the interior of the refrigeration chamber 21, a natural lift effect is provided for the wing plate 22. It is worth noting that the upper and lower surfaces of the wing plate 22 are significantly asymmetric in shape: the upper surface (i.e., the second surface) is relatively convex, while the lower surface (i.e., the first surface) is relatively flat, and this design further enhances the generation of the lift effect. When the cold air flows along the surface of the wing plate 22, due to the larger curvature of the second surface, the distance the cold air flows through is relatively long. According to the Bernoulli principle, the flow rate will accelerate here, thereby causing the pressure in this area to decrease; on the contrary, the flow rate of the cold air on the first surface (lower surface) is slower, so the pressure is relatively high. Because of the pressure difference between the upper and lower surfaces, an upward lift is created for the wing plate 22.

[0067] Exemplarily, when the refrigeration space is set to be used for storage function, the wind speed at the air outlet 212 does not exceed the set wind speed. At this time, the lift force generated by the cold wind on the wing plate 22 relative to the torque between the connecting shaft 221 and the shaft hole 213 is smaller than the torque generated by the gravity of the wing plate 22 relative to the connecting shaft 221. The lower side of the other end of the wing plate 22 abuts against the stop block 23, and the wing plate 22 is parallel to the wind direction. The air duct assembly transports medium and low speed horizontal cold air into the storage space, the wind circulation in the storage space is unobstructed, and the space wind temperature is relatively uniform.

[0068] Exemplarily, when the refrigeration space is set to use the air-drying function, the wind speed at the air outlet 212 is greater than the set wind speed. At this time, the lift force generated by the cold wind on the wing plate 22 relative to the torque generated between the connecting shaft 221 and the shaft hole 213 is greater than the torque generated by the gravity of the wing plate 22 relative to the connecting shaft 221. The wing plate 22 rotates upward around the connecting shaft 221 by a certain angle, and the other end of the wing plate 22 abuts against the upper edge of the air outlet 212. The wind direction of the air outlet 212 blows obliquely downward along the wing plate 22, and the diameter of the cold air from the air inlet 211 to the air outlet 212 gradually decreases, thereby increasing the wind speed gradually, and the cold air coming out of the air outlet 212 directly blows onto the surface of the food, thereby achieving the purpose of air drying.

[0069] The wing plate 22 structure provided by the present application cannot provide any additional power, and can achieve both storage and air drying functions by only relying on the transmitted cold air to refrigerate the space. Compared with the method of setting an additional motor at the shaft hole 213, the wing plate 22 structure provided by the present application does not need to set up additional electrical equipment, and the user does not need to equip this structure with additional electrical equipment, thereby greatly saving the valuable internal space of the refrigerator, making the internal layout of the refrigerator more compact and efficient. At the same time, due to the elimination of the additional motor drive, the overall energy consumption of the refrigerator is also significantly reduced.

[0070] In this embodiment, when the wing plate 22 abuts against the stopper 23 , the direction of the wing plate 22 is parallel to the bottom surface of the refrigeration chamber 21 .

[0071] Exemplarily, when the wing plate 22 abuts against the block 23, the refrigeration space is set to be used for storage function, and the air duct assembly delivers medium and low speed horizontal cold air to the storage space, the wind circulation in the storage space is unobstructed, and the air temperature in the space is relatively uniform. In this embodiment, when the wing plate 22 abuts against the block 23, the direction of the wing plate 22 is set to be parallel to the bottom surface of the refrigeration chamber 21, so that the cold air entering the air inlet 211 can evenly pass through the space formed by the first surface of the wing plate 22 and the lower surface of the refrigeration chamber 21, and the space formed by the second surface of the wing plate 22 and the upper surface of the refrigeration chamber 21, thereby achieving the technical effect of delivering medium and low speed horizontal cold air to the refrigeration space, unobstructed wind circulation in the refrigeration space, and relatively uniform air temperature in the refrigeration space.

[0072] In this embodiment, when the refrigeration space is set to the air drying function, the wind speed of the cold air entering the air inlet 211 is the first wind speed; when the refrigeration space is set to the storage function, the wind speed of the cold air entering the air inlet 211 is the second wind speed; the first wind speed is greater than the second wind speed.

[0073] Exemplarily, when the refrigeration space is set to be used for storage function, the wind speed of the air outlet 212 does not exceed the set wind speed. At this time, the lift force generated by the cold wind on the wing plate 22 relative to the torque between the connecting shaft 221 and the shaft hole 213 is less than the torque generated by the weight of the wing plate 22 relative to the connecting shaft 221. The lower side of the other end of the wing plate 22 abuts against the block 23. The wing plate 22 is parallel to the wind direction. The air duct assembly transports medium and low speed horizontal cold air into the storage space, and the wind circulation in the storage space is smooth, and the air temperature in the space is relatively uniform. Among them, the second wind speed is less than the set wind speed. It can be understood that when the wind speed is the second wind speed, the lift generated is not enough to support the wing plate 22 to abut against the upper surface of the refrigeration chamber 21, thereby abutting against the block 23, so as to realize the storage function of the refrigeration space.

[0074] Exemplarily, when the refrigeration space is set to use the air-drying function, the wind speed of the air outlet 212 is greater than the set wind speed. At this time, the lift force generated by the cold wind on the wing plate 22 relative to the torque generated between the connecting shaft 221 and the shaft hole 213 is greater than the torque generated by the weight of the wing plate 22 relative to the connecting shaft 221. The wing plate 22 rotates upward around the connecting shaft 221 by a certain angle, and the other end of the wing plate 22 abuts against the upper edge of the air outlet 212. The wind direction of the air outlet 212 blows obliquely downward along the wing plate 22, and the diameter of the cold wind from the air inlet 211 to the air outlet 212 gradually decreases, so that the wind speed gradually increases, and the cold wind coming out of the air outlet 212 blows directly onto the surface of the food to achieve the purpose of air drying. Among them, the first wind speed is greater than the set wind speed. It can be understood that when the wind speed is the first wind speed, the lift generated is sufficient to support the wing plate 22 to abut against the upper surface of the refrigeration chamber 21, so as to realize the air-drying function of the refrigeration space.

[0075] In this embodiment, a notch 214 is provided on the bottom surface of the refrigeration chamber 21 , and the notch 214 is provided on a side close to the air inlet 211 ; a projection of the notch 214 toward the wing plate 22 partially covers the wing plate 22 .

[0076] Exemplarily, when the refrigeration space is set to be used for the air-drying function, the air outlet of the air outlet 212 only occupies a part of the air outlet 212, because the cold air will be blocked by the bottom surface of the refrigeration chamber 21 after being blown out through the first surface of the wing plate 22, resulting in the transmission of the cold air being blocked, thereby affecting the air-drying function of the refrigeration space. To avoid the above-mentioned problem, the present application provides a notch 214 on the bottom surface of the refrigeration chamber 21, wherein the projection of the notch 214 in the direction of the wing plate 22 covers the wing plate 22, that is, the cold air is blown out through the first surface of the wing plate 22 and then blown out from the notch 214, and the food placed in the refrigeration space is dried by the high-speed cold air, thereby achieving air-drying of the food.

[0077] In this embodiment, an elastic strip is provided at the abutment between the wing plate 22 and the top surface of the refrigeration chamber 21, and the elastic strip is provided on the top surface of the refrigeration chamber 21 along the length direction of the refrigeration chamber 21. The abutment between the wing plate 22 and the stopper 23 is also provided with an elastic strip.

[0078] It can be understood that the wing plate 22, the wall of the refrigeration chamber 21 and the stop block 23 are all made of iron materials. In order to prevent the wing plate 22 from making noise when abutting against the top surface of the refrigeration chamber 21 and the stop block 23 when switching between the air-drying function and the storage function in the refrigeration space, thereby affecting the user's experience, an elastic strip is provided at the abutment between the wing plate 22 and the top surface of the refrigeration chamber 21, and an elastic strip is also provided at the abutment between the wing plate 22 and the stop block 23, thereby preventing the wing plate 22 from making noise when abutting against the top surface of the refrigeration chamber 21 and the stop block 23.

[0079] It can be understood that the wing plate 22, the wall surface of the refrigeration chamber 21 and the stopper 23 are all made of iron materials. In order to prevent the wing plate 22 from colliding with the top surface of the refrigeration chamber 21 and the stopper 23 when switching the air-drying function and the storage function in the refrigeration space, thereby causing damage to the wing plate 22, the wall surface of the refrigeration chamber 21 and the stopper 23, and reducing the service life of the wing plate 22, the wall surface of the refrigeration chamber 21 and the stopper 23, elastic strips are provided at the abutment between the wing plate 22 and the top surface of the refrigeration chamber 21, and elastic strips are also provided at the abutment between the wing plate 22 and the stopper 23, thereby avoiding the wing plate 22 from colliding with the top surface of the refrigeration chamber 21 and the stopper 23, thereby improving the service life of the wing plate 22, the wall surface of the refrigeration chamber 21 and the stopper 23.

[0080] In this embodiment, the air duct assembly further includes:

[0081] A cover plate 3 is slidably connected to a partition frame 11 disposed opposite to the box body 1; a drawer 4 is slidably connected to the box body 1, and a refrigeration space is formed between the drawer 4 and the cover plate 3. In the present application, the refrigeration space is formed by the cover plate 3 and the drawer 4, and the drawer 4 is used to place food to be stored or food to be air-dried.

[0082] In this embodiment, the diameter of the air inlet 211 is greater than the diameter of the air outlet 212 .

[0083] Exemplarily, when cold air is transmitted in the refrigeration chamber 21, its flow rate is affected by many factors, one of which is the diameter of the pipe. Specifically, when cold air flows from a large-diameter pipe into a small-diameter pipe, the volume of cold air passing through the cross section in the same time must also be reduced due to the reduction in the cross-sectional area of ​​the pipe. To achieve this, the flow rate must be increased to ensure that the same volume of cold air is transmitted through a smaller cross-sectional area in a shorter time. In order to increase the flow rate of the air outlet 212, by setting the diameter of the air inlet 211 to be larger than the diameter of the air outlet 212, on the one hand, the air drying function of the box 1 is improved, and on the other hand, the power consumption of the box is saved, and a larger wind speed can be obtained using a smaller refrigeration equipment operating power.

[0084] The present application provides an air duct assembly, which adjusts the wind speed of the cold air entering the refrigeration chamber 21 by adjusting the air drying function and storage function of the refrigeration space. When the wind speed is high, the refrigeration space is set to the air drying function, and the adjustment wing plate 22 is closely attached to the top surface of the refrigeration chamber 21. The cold air is blown out from the first surface of the wing plate 22 and then blown out from the notch 214. The food placed in the refrigeration space is dried by the high-speed cold air, thereby achieving the air drying of the food. When the wind speed is low, the refrigeration space is set to the storage function, and the cold air passes through the space formed by the first surface of the wing plate 22 and the lower surface of the refrigeration chamber 21, and the space formed by the second surface of the wing plate 22 and the upper surface of the refrigeration chamber 21, thereby realizing the delivery of medium and low speed horizontal cold air into the refrigeration space, the wind circulation in the refrigeration space is unobstructed, and the wind temperature in the refrigeration space is relatively uniform, thereby achieving the storage function of the food.

[0085] Compared with the current refrigerators with air drying function, the refrigeration space provided by the present application can have both air drying function and storage function, thereby increasing the effective use area of ​​the refrigerator, and achieving the above-mentioned technical effects only by the cold air transmitted by the refrigerator's refrigeration equipment, without the need to set up additional redundant motor equipment, thereby further increasing the effective use area of ​​the refrigerator and saving the manufacturing cost of the refrigerator.

[0086] A second aspect of the present application provides a refrigerator, comprising:

[0087] An air duct assembly as described in any of the above embodiments.

[0088] It is worth noting that the effects of the above refrigerator embodiment during operation can refer to the effects of the above air duct assembly embodiment, which will not be described in detail here.

[0089] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An air duct assembly, characterized in that: include: A refrigeration air duct (2) and a refrigeration space are arranged in the box body (1); the refrigeration air duct (2) is connected to the refrigeration space; The refrigeration space is provided with air drying function and storage function; The refrigeration air duct (2) comprises: A refrigeration chamber (21), the refrigeration chamber (21) being provided with an air inlet (211) and an air outlet (212), the air outlet (212) being arranged in the refrigeration space; And, arranged in the refrigeration chamber (21): A wing plate (22), the wing plate (22) being rotatably connected to the refrigeration chamber (21), the wing plate (22) having a first surface and a second surface arranged opposite to each other; A stopper (23), the stopper (23) being arranged relatively on the side wall of the refrigeration chamber (21), and the projection of the wing plate (22) in the direction of the stopper (23) completely covering the stopper (23); When the refrigeration space is set to the air-drying function, the wing plate (22) abuts against the top surface of the refrigeration chamber (21), and the cold air entering through the air inlet (211) passes through the first surface of the wing plate (22) to the air outlet (212); when the refrigeration space is set to the storage function, the wing plate (22) abuts against the block (23), and the cold air entering through the air inlet (211) passes through the first surface and the second surface of the wing plate (22) to the air outlet (212).

2. The air duct assembly according to claim 1, characterized in that: Axial holes (213) are arranged opposite to each other on the side walls of the refrigeration chamber (21); A connecting shaft (221) is provided on one side of the wing plate (22), and the connecting shaft (221) is provided on one side of the wing plate (22) along the length direction of the wing plate (22); The wing plate (22) is rotatably connected to the refrigeration chamber (21) by the connecting shaft (221) being clamped in the shaft hole (213).

3. The air duct assembly according to claim 1, characterized in that: The curvature of the second surface is greater than that of the first surface, and the second surface is close to the top surface of the refrigeration chamber (21).

4. The air duct assembly according to claim 1, characterized in that: When the wing plate (22) is in contact with the stopper (23), the direction of the wing plate (22) is parallel to the bottom surface of the refrigeration chamber (21).

5. The air duct assembly according to claim 1, characterized in that: When the refrigeration space is set to the air drying function, the wind speed of the cold air entering through the air inlet (211) is a first wind speed; when the refrigeration space is set to the storage function, the wind speed of the cold air entering through the air inlet (211) is a second wind speed; the first wind speed is greater than the second wind speed.

6. The air duct assembly according to claim 1, characterized in that: The bottom surface of the refrigeration chamber (21) is provided with a notch (214), and the notch (214) is provided on a side close to the air inlet (211); The projection of the notch (214) in the direction of the wing plate (22) partially covers the wing plate (22).

7. The air duct assembly according to claim 1, characterized in that: An elastic strip is provided at the abutment point between the wing plate (22) and the top surface of the refrigeration chamber (21); the elastic strip is provided on the top surface of the refrigeration chamber (21) along the length direction of the refrigeration chamber (21).

8. The air duct assembly according to claim 1, characterized in that: Also includes: A cover plate (3), the cover plate (3) being slidably connected to a partition frame (11) arranged opposite to the box body (1); A drawer (4), wherein the drawer (4) is slidably connected to the box body (1), and the refrigeration space is formed between the drawer (4) and the cover plate (3).

9. The air duct assembly according to claim 1, characterized in that: The diameter of the air inlet (211) is greater than the diameter of the air outlet (212).

10. A refrigerator, characterized in that: include: An air duct assembly as described in any one of claims 1 to 9.

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