A refrigerated storage device and its control method

Abstract

The present invention provides a refrigerated storage device and a control method thereof. The refrigerated storage device includes a housing, a storage compartment disposed within the housing, and at least one air supply duct assembly disposed on the top of the housing, each air supply duct assembly including: a main air duct, including a downdraft cover extending in the depth direction of the housing, the downdraft cover being provided with a plurality of air outlets spaced apart along its extension direction, each air outlet supplying air toward a target area corresponding to the storage compartment; a plurality of guide plates pivotally connected to the downdraft cover, the plurality of guide plates being spaced apart along the extension direction of the downdraft cover, and any of the plurality of guide plates being configured to selectively rotate according to the required temperature of each target area in the storage compartment to adjust the air supply volume supplied through each air outlet. The solution of the present invention can quickly reduce the temperature within the storage compartment and achieve a uniform temperature effect in different areas within the storage compartment.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a refrigeration storage device and a control method thereof. Background Art

[0002] Refrigerators, freezers, and other refrigeration units all suffer from a common problem: uneven temperatures in different areas within the unit, preventing rapid cooling. A key factor contributing to this is uneven airflow at the air outlets.

[0003] The main reasons for uneven air flow at the air outlet and the inability to achieve rapid cooling are unreasonable duct structure design, which results in heat loss in the process of cold air flowing through the duct. Uneven temperature and the inability to achieve rapid cooling will have an adverse effect on the stored food or reduce the user experience. In a common application scenario, the beer in the refrigeration equipment needs to be cooled quickly and evenly. The optimal drinking temperature of beer is around 8°C, while the temperature of beer at room temperature is around 25°C and can reach above 30°C in the summer. Users need to quickly cool the beer to the optimal drinking temperature and not below 0°C to prevent the beer bottles from freezing and cracking. In addition, the more beer there is in the refrigeration equipment, the slower the beer will be cooled. Summary of the Invention

[0004] One purpose of the present invention is to achieve rapid cooling of various areas in a storage room and solve the technical problem of uneven temperature in different areas of the storage room.

[0005] A further object of the present invention is to achieve faster cooling of one or more areas in a storage room than other areas.

[0006] Yet another further object of the present invention is to flexibly change the flow direction of cold air in the main air duct and the breeze duct, thereby flexibly adjusting the temperature of different areas in the storage room.

[0007] In particular, the present invention provides a refrigerated storage device comprising a housing, a storage compartment disposed within the housing, and at least one air supply duct assembly disposed on the top of the housing, wherein each of the air supply duct assemblies comprises:

[0008] The main air duct includes a downwind duct cover plate extending in the depth direction of the box body, the downwind duct cover plate is provided with a plurality of air outlets spaced apart along the extending direction thereof, each of the air outlets supplies air toward a target area corresponding to the storage compartment;

[0009] A plurality of guide plates are pivotally connected to the downwind duct cover plate, the plurality of guide plates are spaced apart along the extension direction of the downwind duct cover plate, and any of the plurality of guide plates is configured to be selectively rotated according to the required temperature of each target area in the storage compartment to adjust the air supply volume through each of the air outlets.

[0010] Optionally, each of the guide plates is configured to allow a maximum rotation angle of 180°.

[0011] Optionally, each of the guide plates is disposed at the air outlet and is configured to at least partially close the air outlet when rotated to the maximum angle.

[0012] Optionally, each of the guide plates is arranged between two adjacent air outlets.

[0013] Optionally, the refrigerated storage device further includes:

[0014] The air volume regulating mechanism is movably arranged at the top of the main air duct and is configured to determine whether it needs to descend into the main air duct according to the required temperature of each target area in the storage compartment to adjust the air volume supplied through each air outlet.

[0015] Optionally, the guide plate and the air volume adjustment mechanism are controlled to move simultaneously or partially.

[0016] Optionally, the main air duct is further provided with a first air inlet, the first air inlet being communicated with the rear portion of the box body, the main air duct further comprising an upper air duct cover plate extending in the depth direction of the box body, the upper air duct cover plate and the lower air duct cover plate cooperate to form the main air duct, and the air supply duct assembly further comprises:

[0017] a breeze duct, arranged on the upper part of the upper duct cover plate and extending in the same direction as the main duct, the breeze duct being provided with a second air inlet and an air outlet, the second air inlet being located above the first air inlet and communicating with the rear part of the box, and the air outlet supplying air toward the main duct;

[0018] The air volume regulating mechanism is configured such that its initial position is within the breeze duct and blocks the position of the air outlet, and opens the air outlet while being lowered into the breeze duct in a controlled manner;

[0019] The air volume regulating mechanism is arranged so that its limit position allowed to descend is located above the air outlet.

[0020] Optionally, the exhaust port is located above or obliquely above the air outlet, so that the air volume adjustment mechanism is located above or obliquely above the air outlet when it descends into the main air duct;

[0021] The air volume regulating mechanism is configured to, when it is controlled to descend from the position blocking the exhaust port to the main air duct, gather the cold air in the main air duct and the breeze duct guided by the air volume regulating mechanism to the air outlet below the air volume regulating mechanism or the next air outlet adjacent to the air outlet, so as to increase the air volume of the air outlet or the next air outlet.

[0022] Optionally, the air volume adjustment mechanism includes:

[0023] a disc-shaped body, arranged vertically and liftably in the breeze duct, the disc-shaped body having a disc-shaped surface;

[0024] a windshield, arranged on the periphery of the disc-shaped surface and extending in a direction perpendicular to the disc-shaped body;

[0025] The wind shield is configured to change the flow direction of the cold air in front of the wind shield in the main air duct when the air volume regulating mechanism descends into the main air duct, so that the cold air flows in the direction guided by the wind shield when encountering the wind shield, and at the same time, the cold air discharged through the exhaust port in the breeze duct flows in the direction guided by the wind shield, thereby allowing the cold air in the main air duct and the breeze duct to converge to the air outlet below the air volume regulating mechanism or the next air outlet adjacent to the air outlet, so as to increase the air outlet of the air outlet or the next air outlet.

[0026] Optionally, there are multiple windshields, and the multiple windshields are spaced apart and arranged along the periphery of the disc-shaped surface;

[0027] The disc-shaped body is configured to be rotatable so as to change the position of the wind shield in the main air duct, thereby adjusting the flow direction of the cold air in the main air duct.

[0028] Optionally, there are multiple air outlets, and the multiple air outlets are spaced apart and arranged along the extension direction of the breeze duct;

[0029] The plurality of air volume regulating mechanisms are configured to be controlled to descend into the main air duct simultaneously or at different times to regulate the air volume supplied through each of the air outlets.

[0030] Optionally, the air outlet is configured to gradually shrink from its upper end to its lower end.

[0031] Optionally, the refrigerated storage device further includes:

[0032] an air supply assembly, disposed at the rear of the box body, for blowing the cold air from the rear of the box body to the main air duct and the breeze duct connected to the rear of the box body;

[0033] The return air outlet is arranged below the air supply component and is communicated with the storage compartment.

[0034] In particular, the present invention provides a control method for the aforementioned refrigerated storage device, comprising the following steps:

[0035] Obtaining the required temperature of each target area in the storage compartment of the refrigerated storage device;

[0036] According to the needs of each target area, it is determined whether it is necessary to control one or several guide plates of the plurality of guide plates of the refrigerated storage device to rotate, so as to adjust the air supply volume through each air outlet.

[0037] According to one aspect of the present invention, an air supply duct assembly is provided at the top of a cabinet, the duct assembly comprising a main duct extending along the depth of the cabinet. A plurality of air outlets are spaced apart along the main duct's extension on a lower duct cover, each outlet directing air toward a corresponding target area of the storage compartment. In other words, outlets are provided along the depth (i.e., the front-to-back direction) of the storage compartment, allowing cool air to be delivered to each area within the depth of the storage compartment. Compared to prior art methods that only deliver air from the rear of the storage compartment, the present invention achieves more uniform temperatures and faster cooling across each area within the depth of the storage compartment. Furthermore, a plurality of deflectors are pivotally provided on the lower duct cover, each of which is configured to selectively rotate according to the desired temperature of each target area within the storage compartment to adjust the air volume delivered through each outlet, thereby reducing temperature differences between the various areas.

[0038] Furthermore, by setting the maximum angle allowed for the guide plate to rotate to 108°, the guide plate can be utilized to the maximum extent according to the air supply requirements of each air outlet, thereby controlling the amount of cold air and the flow direction in the main air duct, and thus controlling the air supply volume of each air outlet.

[0039] Furthermore, by providing a liftable air volume adjustment mechanism at the top of the main air duct, it is possible to selectively lower the air volume adjustment mechanism into the main air duct when there is a large temperature difference between various areas within the storage room to adjust the air volume supplied by each air outlet, thereby further reducing the temperature difference between the various areas. In addition, when the air volume adjustment mechanism is not needed, it is hidden at the top of the main air duct. When it is needed, it is lowered into the main air duct, and the maximum position it can be lowered is where it can block the air outlet located below it. It can be understood that when the temperature of the target area corresponding to a certain air outlet is low and the temperature difference with other areas is too large, the air outlet can be closed, blocking the air supply to the target area.

[0040] Furthermore, by adding a breeze duct on the top of the main air duct in the same direction as the main air duct, an exhaust port for supplying air toward the main air duct is opened on the breeze duct, and an air volume adjustment mechanism is arranged in the breeze duct. When the air volume adjustment mechanism descends to the main air duct, the exhaust port is opened accordingly, so that the cold air in the breeze duct can be blown to the main air duct, thereby converging the cold air in the main air duct and the breeze duct through the air volume adjustment mechanism to the air outlet below the air volume adjustment mechanism or the next air outlet adjacent to the air outlet, so as to increase the air outlet of the air outlet or the next air outlet.

[0041] According to another aspect of the present invention, a control method for the above-mentioned refrigerated storage device is provided. By determining the required temperature between each target area, it is determined based on the required temperature of each area whether it is necessary to control one or several of the multiple guide plates of the refrigerated storage device to rotate, thereby adjusting the temperature of each area, which can achieve rapid cooling of each area and a smaller temperature difference between each area.

[0042] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0044] Figure 1 A schematic structural diagram of a refrigerated storage device according to a first embodiment of the present invention is shown, wherein arrows indicate the direction of cold air flow;

[0045] Figure 2 A schematic structural diagram showing a first air outlet guide plate rotated to a position blocking the first air outlet according to a first embodiment of the present invention is shown, wherein arrows indicate the direction of cold air flow;

[0046] Figure 3 A schematic flow chart showing a control method for a refrigerated storage device according to a first embodiment of the present invention is shown;

[0047] Figure 4 A schematic structural diagram of a refrigerated storage device according to a second embodiment of the present invention is shown, wherein arrows indicate the direction of cold air flow;

[0048] Figure 5 FIG2 shows a schematic structural diagram of an air volume adjustment mechanism according to a third embodiment of the present invention, wherein arrows indicate the flow direction of cold air;

[0049] Figure 6 shows a schematic structural diagram of a refrigerated storage device according to a fourth embodiment of the present invention, wherein arrows indicate the direction of cold air flow;

[0050] Figure 7 A schematic structural diagram of an air volume adjustment mechanism according to a fourth embodiment of the present invention is shown, wherein arrows indicate the direction of cold air flow;

[0051] Figure 8 shows a schematic structural diagram of a refrigerated storage device according to a fifth embodiment of the present invention, wherein arrows indicate the direction of cold air flow;

[0052] In the picture:

[0053] 1-Box,

[0054] 2-Storage room,

[0055] 3- Door body,

[0056] 4- Air supply duct assembly,

[0057] 41- Main air duct,

[0058] 411-first air inlet,

[0059] 412-air outlet,

[0060] 4121-first air outlet,

[0061] 4122-second air outlet,

[0062] 4123-the third air outlet,

[0063] 413-upper air duct cover,

[0064] 414-Downwind duct cover,

[0065] 42-air volume adjustment mechanism,

[0066] 421-Disk-shaped body,

[0067] 4211-disc-shaped surface,

[0068] 422-wind deflector,

[0069] 423-first air volume adjustment mechanism,

[0070] 424- Second air volume adjustment mechanism,

[0071] 43-Breeze Road,

[0072] 431-second air inlet,

[0073] 432-Exhaust vent,

[0074] 4321-first air outlet,

[0075] 4322-second air outlet,

[0076] 44- deflector,

[0077] 5- fan,

[0078] 6- Evaporator,

[0079] 7-Return air vent,

[0080] 8-Items. DETAILED DESCRIPTION

[0081] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0082] In the description of the present invention, the terms "upper", "lower", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention. For example, in the following description, Figure 1 The left side is the back and the right side is the front.

[0083] Example 1:

[0084] Figure 1 FIG1 shows a schematic structural diagram of a refrigeration storage device according to a first embodiment of the present invention. Figure 1 As shown, the refrigerated storage device may be, for example, a refrigerator or a freezer, and the freezer may be used to cool the items 8 to be refrigerated to 0-10°C, but not to below 0°C. Figure 1 As shown, the refrigerated storage device generally includes a housing 1, a storage compartment 2, and a door 3. The storage compartment 2 is disposed within the housing 1, and the door 3 is used to open or close the storage compartment 2. The storage compartment 2 can be, for example, a cold storage compartment or a compartment of a refrigerator for refrigerating items 8.

[0085] The refrigerated storage device also includes an air supply duct assembly 4. The air supply duct assembly 4 is disposed at the top of the housing 1. The air supply duct assembly 4 includes a main duct 41 and a plurality of deflectors 44. The main duct 41 extends along the depth of the housing 1 and is provided with a first air inlet 411 communicating with the rear of the housing 1, and a plurality of air outlets 412 spaced apart along the extension of the main duct 41. Each air outlet 412 supplies air toward a target area corresponding to the storage compartment 2. To increase the air supply velocity of the air outlets 412, in a preferred embodiment, each air outlet 412 is configured to gradually taper from its upper end to its lower end. The multiple air outlets 412 of the main duct 41 include a first air outlet 4121, which is closest to the rear of the housing 1 compared to the other air outlets 412, and a second air outlet 4222 adjacent to the first air outlet 4121. That is to say, air outlets 412 are provided in the depth direction (i.e., the front-to-back direction) of the storage compartment 2, so that cold air is supplied to each area in the depth direction of the storage compartment 2. Compared with the method of supplying air only from the rear of the storage compartment 2 in the prior art, the temperature in each area in the depth direction of the storage compartment 2 in the present application is more uniform and the temperature drops faster.

[0086] The refrigerated storage device may further include an air supply assembly (not shown in the figure) and a refrigeration system (not shown in the figure) arranged at the rear of the box body 1. The air supply assembly may, for example, include a fan 5. The refrigeration system may, for example, include a compressor (not shown in the figure) and an evaporator 6. The compressor is arranged below the fan 5. When the compressor is started, the air flowing through it can be cooled. The air cooled by the evaporator 6 is supplied to the rear of the box body 1 and then blown to the main air duct 41 through the fan 5. Therefore, in this embodiment, the air supply assembly is used to blow cold air from the rear of the box body 1 to the first air inlet 411 of the main air duct 41 connected to the rear of the box body 1. In addition, in a specific example, the refrigerated storage device may further include a return air vent 7, which is arranged below the evaporator 6 and is connected to the storage compartment 2.

[0087] In this embodiment, by designing the structure and layout of the main air duct 41, it is possible to quickly cool down various areas in the storage compartment 2 and reduce the temperature difference between various areas to a certain extent. The principle is that the multiple air outlets 412 on the main air duct 41 are arranged at intervals along the extension direction of the main air duct 41, and each air outlet 412 supplies air to the corresponding target area, that is, each target area has an air outlet 412 corresponding to the air supply. Since the air outlets 412 are arranged along the depth direction of the box body 1, each area of the storage compartment 2 along the depth direction of the box body 1 can be directly supplied with cold air. Therefore, there is no problem of the temperature of the area behind the storage compartment 2 being higher than the temperature of the area in front when air is supplied from back to front. Therefore, it is possible not only to quickly cool down various areas, but also to reduce the temperature difference between various areas to a certain extent.

[0088] The plurality of deflectors 44 are spaced apart along the extension direction of the downwind duct cover plate 414, and each deflector 44 is pivotally connected to the downwind duct cover plate 414. Each of the plurality of deflectors 44 is configured to selectively rotate according to the required temperature of each target area in the storage compartment 2 to adjust the air volume supplied through each air outlet 412, thereby reducing the temperature difference between the various areas. In a specific example, each deflector 44 is configured to allow a maximum rotation angle of 180 degrees. This allows the deflectors 44 to be maximized according to the air supply requirements of each air outlet 412, thereby controlling the amount and flow direction of cold air within the main air duct 41, and thus controlling the air volume supplied by each air outlet 412.

[0089] In a specific example, each deflector 44 is disposed at the air outlet 412 and is configured to at least partially close the air outlet 412 when rotated to a maximum angle. There are two situations in which the deflector 44 is disposed at the air outlet 412. One situation is as follows: Figure 1 The guide plate 44 shown is located at the front edge of the air outlet 412. Figure 2 The guide plate 44 is shown located at the trailing edge of the air outlet 412. Here, the "leading edge of the air outlet 412" refers to the upstream area of the air outlet 412 in the direction of cold air flow, and the "trailing edge of the air outlet 412" refers to the downstream area of the air outlet 412 in the direction of cold air flow.

[0090] The rotation angle of the deflector 44 can be determined based on the air supply requirements of each air outlet 412 (related to the required temperature of each area). When it is necessary to quickly cool the items 8 in each area of the storage compartment 2, all the deflectors 44 are rotated to a position close to the lower duct cover 414, allowing the cold air to flow unimpeded within the main duct 41.

[0091] In the following cases, the air supply required at the first air outlet 4121 decreases, and the air supply required at the other air outlets 412 in front of the first air outlet 4121 also decreases, but the decrease in the air supply required at the other air outlets 412 except the first air outlet 4121 is less than the decrease in the air supply required at the first air outlet 4121. At this time, the guide plates 44 at each air outlet 412 can be rotated to Figure 1 In the following cases, the air supply volume required at the first air outlet 4121 is zero, while the air supply volume required at other air outlets 412 located in front of the first air outlet 4121 increases, the guide plates 44 at each air outlet 412 can be rotated to Figure 2 Angle shown.

[0092] By pivotally arranging a plurality of guide plates 44 on the downwind duct cover plate 414, any of the plurality of guide plates 44 is configured to be selectively rotated according to the required temperature of each target area in the storage compartment 2 to adjust the air supply volume through each air outlet 412, thereby reducing the temperature difference between each area.

[0093] The above-mentioned refrigeration storage device can be used in scenarios where a large amount of beer needs to be cooled quickly and the temperature difference between different areas is reduced, and can also be used in similar scenarios. As long as there is a need to quickly cool down and minimize the temperature difference between different areas, the solution of the embodiment of the present invention can be used.

[0094] Accordingly, an embodiment of the present invention further provides a control method for a refrigerated storage device, such as Figure 3 As shown, the control method includes:

[0095] Step S100, obtaining the required temperature of each target area in the storage compartment of the refrigerated storage device;

[0096] In step S200 , it is determined whether one or more of the guide plates of the refrigerated storage device needs to be controlled to rotate according to the needs of each target area, so as to adjust the air supply volume through each air outlet.

[0097] The refrigerated storage device in this control method is the aforementioned cold storage device in the embodiment of the present invention, and will not be described in detail here. The following is an example of the main air duct 41 including three air outlets 412:

[0098] The target area corresponding to the first air outlet 4121 is defined as the first target area, the target area corresponding to the second air outlet 4122 is defined as the second target area, the air outlet located in front of the second air outlet 4122 is defined as the third air outlet 4123, and the target area corresponding to the third air outlet 4123 is defined as the third target area.

[0099] For example, after a period of cooling, the temperature of the first target area is 2°C, the temperature of the second target area is 8°C, and the temperature of the third target area is 10°C. Assume that in this case, it is determined that there is no need to supply air to the first target area, but it is necessary to increase the air supply to the second and third target areas. Figure 2 As shown, the guide plate 44 corresponding to the first air outlet 4121 is controlled to close the first air outlet 4121, and the other guide plates 44 are controlled to be close to the downwind duct cover 414, thereby indirectly increasing the air supply volume of the second air outlet 4122 and the third air outlet 4123, thereby achieving cooling of the second target area and the third target area.

[0100] Example 2:

[0101] The difference between the second embodiment and the first embodiment is that:

[0102] like Figure 4 As shown, each guide plate 44 is disposed between two adjacent air outlets 412. The guide plates 44 in the second embodiment are the same as the guide plates 44 in the first embodiment, and can be rotated to a maximum angle of 180°. Figure 4 One of the working conditions of the guide plate 44 is shown, that is, all the guide plates 44 located in front of the first air outlet 4121 are rotated to be perpendicular to the downwind duct cover 414, thereby preventing the cold air in the main air duct 41 from flowing forward, thereby indirectly increasing the air supply volume of the first air outlet 4121, and then quickly cooling the target area corresponding to the first air outlet 4121.

[0103] The control method of the second embodiment performs adaptive adjustment.

[0104] Example 3:

[0105] The difference between the third embodiment and the first embodiment is that:

[0106] like Figure 5 As shown, the refrigerated storage device also includes an air volume regulating mechanism 42. The air volume regulating mechanism 42 is arranged at the top of the main air duct 41 in a liftable manner, and is configured to determine whether it needs to be lowered into the main air duct 41 according to the required temperature of each target area in the storage compartment 2, so as to adjust the air supply volume supplied through each air outlet 412. By arranging the liftable air volume regulating mechanism 42 at the top of the main air duct 41, it is possible to selectively lower the air volume regulating mechanism 42 into the main air duct 41 to adjust the air supply volume supplied by each air outlet 412, thereby reducing the temperature difference between each area. In a specific example, the air volume regulating mechanism 42 is configured to allow a controlled descent from a position hidden at the top of the main air duct 41 to the inside of the main air duct 41, and the limit position allowed to descend is above the air outlet 412 below it.

[0107] By setting up the air volume regulating mechanism 42, the temperature difference between each target area of the storage room 2 can be further reduced. The principle is that the required air volume of the air outlet 4122 near the front of the box body 1 is less than the required air volume of the air outlet 4121 near the rear of the box body, so the guide plates 44 at the front air outlet 4122 and the rear air outlet 4121 are rotated to Figure 5 The angle shown is adjusted, and the air volume regulating mechanism 42 is lowered into the main air duct 41, so that more cold air is directed to the rear air outlet 4121, and less cold air is directed to the front air outlet 4122, so that the target area at the rear receives more cold air and the target area at the front receives less cold air.

[0108] The control method of the third embodiment is adaptively adjusted.

[0109] Example 4:

[0110] The difference between the fourth embodiment and the third embodiment is that:

[0111] like Figure 6 As shown, the air supply duct assembly 4 further includes a breeze duct 43, which is disposed above the upper duct cover plate 413 and extends in the same direction as the main duct 41. The breeze duct 43 is provided with a second air inlet 431 and an air outlet 432. The second air inlet 431 is located above the first air inlet 411 and communicates with the rear of the housing 1, while the air outlet 432 supplies air toward the main duct 41. Therefore, in this embodiment, the air cooled by the evaporator 6 is supplied to the rear of the housing 1 and then blown into the main duct 41 and the breeze duct 43 by the fan 5.

[0112] The air volume adjustment mechanism 42 is initially located within the breeze duct 43 and blocks the exhaust port 432, thereby preventing the cool air in the breeze duct 43 from being blown into the main duct 41. Instead, the cool air in the main duct 41 is delivered to the storage compartment 2 along with the cool air in the main duct 41. This design allows the air volume adjustment mechanism 42 to be hidden within the breeze duct 43 when the cool air is not needed. When the cool air in the breeze duct 43 is needed, the air volume adjustment mechanism 42 is lowered into the main duct 41, simultaneously opening the exhaust port 432 of the breeze duct 43. The air volume adjustment mechanism 42 is configured to, when it is controlled to descend from its position hidden at the top of the main duct 41 into the main duct 41, converge the cool air from the main duct 41 and the breeze duct 43, directed by the air volume adjustment mechanism 42, to the second air outlet 4122, thereby increasing the air volume output from the second air outlet 4122.

[0113] In a specific example, Figure 7 As shown, the air volume adjustment mechanism 42 includes a disc-shaped body 421 and a windshield 422. The disc-shaped body 421 is vertically and liftably arranged within the breeze duct 43. The disc-shaped body 421 has a disc-shaped surface 4211. The windshield 422 is disposed around the periphery of the disc-shaped surface 4211 and extends perpendicularly to the disc-shaped body 421. When the air volume adjustment mechanism 42 is lowered into the main air duct 41, the windshield 422 is configured to change the flow direction of the cold air in front of the windshield 422 within the main air duct 41. This allows the cold air to flow in the direction directed by the windshield 422 upon encountering the windshield 422. Simultaneously, the cold air discharged from the breeze duct 43 through the air outlet 432 flows in the direction directed by the windshield 422, thereby allowing the cold air in the main air duct 41 and the breeze duct 43 to converge at the second air outlet 4122. The number of the windshield plate 422 can be, for example, one, and the windshield plate 422 is continuously arranged along the periphery of the disk-shaped surface 4211, similar to the skirt of the disk-shaped surface 4211. Figure 7As shown, the number of the wind shield 422 can be, for example, multiple, and the multiple wind shields 422 are arranged at intervals along the periphery of the disc surface 4211. The disc-shaped body 421 is configured to rotate to change the position of the wind shield 422 in the main air duct 41, thereby adjusting the flow direction of the cold air in the main air duct 41.

[0114] The difference between the control method in the fourth embodiment and the control method in the first embodiment is that in this embodiment, there are only two target areas, namely the first target area corresponding to the first air outlet 4121 and the second target area corresponding to the second air outlet 4122. For example, after a period of cooling, the temperature of the first target area is 8°C and the temperature of the second target area is 9°C. Assuming that in this case, it is determined that a small amount of air needs to be supplied to both the first target area and the second target area, and the air supply to the first target area is less than that to the second target area, then Figure 6 As shown, the guide plate 44 at the first air outlet 4121 rotates to Figure 6 At the angle shown, the air volume control mechanism 42 located above the first air outlet 4121 descends into the main air duct 41, so that the cold air in the main air duct 41 is guided through the air volume control mechanism 42 to the main air duct 41 in front of the first air outlet 4121, and at the same time, the cold air in the breeze duct 43 is blown into the main air duct 41 through the exhaust port 432, and guided through the air volume control mechanism 42 to converge with the cold air in the main air duct 41 guided through the air volume control mechanism 42, and blown toward the second air outlet 4122. In this process, only a very small amount of cold air is blown to the first target area through the first air outlet 4121, thereby achieving faster cooling of the second target area compared to the first target area, thereby greatly reducing the temperature difference between different areas.

[0115] Embodiment 5:

[0116] The difference between the fifth embodiment and the fourth embodiment is that:

[0117] In this embodiment, Figure 8 As shown, the breeze duct 43 has multiple outlets 432, which are spaced apart along the extension direction of the breeze duct 43. Each outlet 432 is provided with an air volume adjustment mechanism 42. The multiple air volume adjustment mechanisms 42 are configured to be controlled to descend into the main air duct 41 simultaneously or at different times to adjust the air volume supplied through each outlet. This allows for flexible adjustment of the air volume of each outlet, thereby adjusting the temperature of each target area.

[0118] The control method in the fifth embodiment differs from the control method in the fourth embodiment in that:

[0119] The air volume regulating mechanism corresponding to the first air outlet 4121 is defined as the first air volume regulating mechanism 423, which is disposed at the first air outlet 4321. The air volume regulating mechanism corresponding to the second air outlet 4122 is defined as the second air volume regulating mechanism 424, which is disposed at the second air outlet 4322.

[0120] In this embodiment, there are multiple target areas, namely, a first target area corresponding to the first air outlet 4121, a second target area corresponding to the second air outlet 4122, a third target area corresponding to the third air outlet 4123, a fourth target area corresponding to the fourth air outlet adjacent to the third air outlet 4123, etc. ( Figure 7 Only the third air outlet 4123 is shown in the figure). For example, after a period of cooling, the temperature of the first target area, the second target area, and the third target area are all 8°C. Assume that in this case, it is determined that the air supply to all target areas needs to be reduced to maintain the temperature of all target areas at 8°C. Then, if Figure 8 As shown, the first air volume regulating mechanism 423 and the second air volume regulating mechanism 424 are controlled to descend into the main air duct 41 respectively, and the guide plate 44 located at the first air outlet 4121 rotates to Figure 8 The angle shown causes the other guide plates 44 to be in close contact with the lower duct cover plate 414 , thereby reducing the air supply volume of all the air outlets 412 to approximately the same extent at the same time.

[0121] Throughout this specification, references to "one embodiment," "a specific example," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0122] At this point, it should be recognized by those skilled in the art that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the general principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A refrigeration storage device, characterized in that: The invention comprises a box body, a storage compartment arranged in the box body, and at least one air supply duct assembly arranged on the top of the box body, each of the air supply duct assembly comprising: a main air duct, comprising an upper air duct cover plate and a lower air duct cover plate extending in the depth direction of the box body, wherein the lower air duct cover plate is provided with a plurality of air outlets spaced apart along the extension direction thereof, each of the air outlets supplying air toward a target area corresponding to the storage compartment; a plurality of deflectors pivotally connected to the downwind duct cover, the deflectors being spaced apart along an extension direction of the downwind duct cover, and each of the deflectors being configured to selectively rotate according to a required temperature of each target area in the storage compartment to adjust an air volume supplied through each of the air outlets; A breeze duct is provided on the upper portion of the upper duct cover plate and extends in the same direction as the main duct. An exhaust port is provided on the breeze duct, and the exhaust port supplies air toward the main duct. An air volume regulating mechanism is liftably arranged at the top of the main air duct, and is configured so that its initial position is in the breeze duct and blocks the position of the exhaust port. It determines whether it needs to descend into the main air duct according to the required temperature of each target area in the storage compartment, and opens the exhaust port while descending into the main air duct in a controlled manner. The cold air guided by the air volume regulating mechanism in the main air duct and the breeze duct through the air volume regulating mechanism can be gathered to the air outlet below the air volume regulating mechanism or the next air outlet adjacent to the air outlet, so as to increase the air volume of the air outlet or the next air outlet.

2. The refrigerated storage device according to claim 1, characterized in that: Each of the guide plates is configured to allow a maximum rotation angle of 180°.

3. The refrigerated storage device according to claim 2, characterized in that: Each of the guide plates is disposed at the air outlet and is configured to at least partially close the air outlet when rotated to the maximum angle.

4. The refrigerated storage device according to claim 2, characterized in that: Each of the guide plates is arranged between two adjacent air outlets.

5. The refrigerated storage device according to claim 1, characterized in that: The guide plate and the air volume adjustment mechanism are controlled to move simultaneously or partially.

6. The refrigerated storage device according to claim 5, characterized in that: The main air duct is further provided with a first air inlet, which is connected to the rear of the box body. The upper air duct cover plate and the lower air duct cover plate cooperate to form the main air duct; A second air inlet is provided on the breeze duct, the second air inlet is located above the first air inlet and is connected to the rear of the box; The air volume regulating mechanism is arranged so that its limit position allowed to descend is located above the air outlet.

7. The refrigerated storage device according to claim 6, characterized in that: The exhaust port is located above or obliquely above the air outlet, so that the air volume adjustment mechanism is located above or obliquely above the air outlet when it descends into the main air duct.

8. The refrigerated storage device according to claim 7, characterized in that: The air volume regulating mechanism comprises: a disc-shaped body, arranged vertically and liftably in the breeze duct, the disc-shaped body having a disc-shaped surface; a windshield, arranged on the periphery of the disc-shaped surface and extending in a direction perpendicular to the disc-shaped body; The wind shield is configured to change the flow direction of the cold air in front of the wind shield in the main air duct when the air volume regulating mechanism descends into the main air duct, so that the cold air flows in the direction guided by the wind shield when encountering the wind shield, and at the same time, the cold air discharged through the exhaust port in the breeze duct flows in the direction guided by the wind shield, thereby allowing the cold air in the main air duct and the breeze duct to converge to the air outlet below the air volume regulating mechanism or the next air outlet adjacent to the air outlet, so as to increase the air outlet of the air outlet or the next air outlet.

9. A control method for a refrigerated storage device according to any one of claims 1 to 8, characterized in that: The steps include: Obtaining the required temperature of each target area in the storage compartment of the refrigerated storage device; According to the needs of each target area, it is determined whether it is necessary to control one or several guide plates of the plurality of guide plates of the refrigerated storage device to rotate, so as to adjust the air supply volume through each air outlet.

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