A refrigerated storage device and its control method

Abstract

The present invention provides a refrigerated storage device and its control method. The refrigerated storage device includes a box body, a refrigerated compartment arranged in the box body, and a air supply duct assembly arranged on the top of the box body. The air supply duct assembly includes: a main duct extending along the depth direction of the box body, a plurality of air outlets are arranged on the main duct at intervals along the extension direction of the main duct, and each air outlet blows air towards a corresponding target area in the refrigerated compartment; an air volume adjustment mechanism, which is arranged on the top of the main duct in a liftable manner, and is configured to determine whether to descend into the main duct according to the temperature difference between the respective target areas in the refrigerated compartment, so as to adjust the air volume of the air blown through each air outlet. The solution of the present invention can quickly reduce the temperature in the refrigerated compartment and achieve the effect of uniform temperature in different areas of the refrigerated compartment.

Description

Technical Field

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

[0002] Refrigeration devices such as refrigerators and freezers all have a common problem, that is, the temperatures in different areas inside the refrigeration device are uneven and rapid cooling cannot be achieved. An important reason for the uneven temperature in different areas and the inability to achieve rapid cooling is the uneven air flow rate at the air supply openings.

[0003] The reasons for the uneven air flow rate at the air supply openings and the inability to achieve rapid cooling are mainly due to the unreasonable design of the air duct structure, resulting in heat loss of the cold air during the process of flowing through the air duct. Uneven temperature and the inability to achieve rapid cooling will have an adverse impact on the stored food or reduce the user experience. In a common application scenario, it is necessary to rapidly and uniformly cool the beer inside the refrigeration device. The optimal drinking temperature of beer is around 8°C, while the beer is around 25°C at room temperature and can reach above 30°C in summer. Users have the need to quickly cool the beer to the optimal drinking temperature and not lower than 0°C to prevent the beer bottle from cracking. Moreover, the more beer there is inside the refrigeration device, the slower the cooling speed of the beer. Summary of the Invention

[0004] An object of the present invention is to achieve rapid cooling of each area inside the refrigeration compartment and solve the technical problem of uneven temperatures in different areas inside the refrigeration compartment.

[0005] A further object of the present invention is to achieve faster cooling of one or several areas inside the refrigeration compartment compared to other areas.

[0006] Another further object of the present invention is to flexibly change the cold air flow direction of the main air duct and the micro air ducts, thereby flexibly adjusting the temperatures of different areas inside the refrigeration compartment.

[0007] Specifically, the present invention provides a refrigerated storage device, including a box body, a refrigeration compartment provided inside the box body, and an air supply duct assembly provided on the top of the box body. The air supply duct assembly includes:

[0008] A main air duct extending along the depth direction of the box body. A plurality of air outlets are provided on the main air duct at intervals along the extension direction of the main air duct, and each air outlet supplies air towards the corresponding target area of the refrigeration compartment.

[0009] 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 temperature difference between each target area in the refrigeration compartment to regulate the air volume supplied through each air outlet.

[0010] Optionally, the air volume regulating mechanism is configured to allow controlled descent from a position hidden at the top of the main air duct to the inside of the main air duct, and the limit position allowed for descent is located at a position capable of blocking the air outlet located below it.

[0011] Optionally, the main air duct is further provided with a first air inlet, the first air inlet is communicated with the rear portion of the box, and the air supply duct assembly further includes:

[0012] a breeze duct, arranged at the top of the main air duct and extending in the same direction as the main air 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 portion of the box, the air outlet supplying air toward the main air duct, and the orthographic projection of the air outlet on the plane where the multiple air outlets are located being located between any two adjacent air outlets among the multiple air outlets;

[0013] The air volume regulating mechanism is arranged in the breeze duct and is blocked at the air outlet, thereby being hidden at the top of the main air duct.

[0014] Optionally, the air volume regulating mechanism is configured to, when it is controlled to descend from a position hidden at the top of the main air duct to the inside of the main air duct and has not reached the extreme position, gather the cold air in the main air duct and the breeze duct guided by the air volume regulating mechanism to the next air outlet adjacent to the air outlet located below the air volume regulating mechanism, so as to increase the air volume of the next air outlet.

[0015] Optionally, the air volume adjustment mechanism includes:

[0016] a disc-shaped body, arranged vertically and liftably in the breeze duct, the disc-shaped body having a disc-shaped surface;

[0017] a windshield, arranged on the periphery of the disc-shaped surface and extending in a direction perpendicular to the disc-shaped body;

[0018] 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 adjustment 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 from the breeze duct through the exhaust port 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 at the next air outlet adjacent to the air outlet located below the air volume adjustment mechanism.

[0019] Optionally, the number of the windshields is plural, and the plural windshields are arranged at intervals along the periphery of the disc-shaped surface;

[0020] The disc-shaped body is configured to be rotatable about its own axis to change the position of the windshields in the main air duct, so as to adjust the flow direction of the cold air in the main air duct.

[0021] Optionally, the number of the air outlets is plural, and the plural air outlets are arranged at intervals along the extending direction of the micro air duct. The plural positive projections of the plural air outlets on the plane where the plural air inlets are located are arranged alternately with the plural air inlets. The air volume adjusting mechanism is provided at each of the air outlets;

[0022] The plural air volume adjusting mechanisms are configured to be controlled to descend into the main air duct simultaneously or non-simultaneously, so as to adjust the air volume of the air sent through each of the air inlets.

[0023] Optionally, the plural air inlets include a first air inlet closest to the rear part of the box body compared with other air inlets and a second air inlet adjacent to the first air inlet;

[0024] The number of the air outlets is one, and the positive projection of the air outlet on the plane where the plural air inlets are located is located between the first air inlet and the second air inlet.

[0025] Optionally, the air inlet is configured to gradually contract from its upper end to its lower end;

[0026] The refrigerated storage device further includes:

[0027] An air supply component, arranged at the rear part of the box body, for blowing the cold air from the rear part of the box body to the main air duct and the micro air duct communicated with the rear part of the box body;

[0028] A return air inlet, arranged below the air supply component and communicated with the refrigerated compartment.

[0029] Particularly, the present invention further provides a control method for a refrigerated storage device as described above, including the following steps:

[0030] Obtain the temperatures of each target area in the refrigerated compartment of the refrigerated storage device;

[0031] Determine the temperature difference between each target area according to the temperatures of each target area;

[0032] Determine whether it is necessary to control the air volume adjusting mechanism of the refrigerated storage device to descend into the main air duct of the refrigerated storage device according to the temperature difference between each target area, so as to adjust the air volume of the air sent through each air inlet of the main air duct.

[0033] According to one aspect of the present invention, by providing a air supply duct assembly at the top of the box body, and the air supply duct assembly includes a main duct extending along the depth direction of the box body, and a plurality of air outlets are arranged at intervals along the extending direction of the main duct, and each air outlet blows air towards the corresponding target area of the refrigerating compartment. That is to say, air outlets are provided in the depth direction (i.e., the front-back direction) of the refrigerating compartment, so that cold air is sent into each area in the depth direction of the refrigerating compartment. Compared with the prior art in which air is only blown from the rear of the refrigerating compartment, the temperature in each area in the depth direction of the refrigerating compartment in the present application is more uniform and the cooling is faster. And, by providing a liftable air volume adjusting mechanism at the top of the main duct, it is possible to selectively lower the air volume adjusting mechanism into the main duct when the temperature difference in each area of the refrigerating compartment is large, so as to adjust the air volume of the air blown out of each air outlet, thereby reducing the temperature difference in each area.

[0034] Furthermore, when the air volume adjusting mechanism is not needed, it is hidden at the top of the main duct, and when the air volume adjusting mechanism is needed, it is lowered into the main duct, and the limit position where it can be lowered is located at the position where it can block the air outlet 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 from other areas is too large, this air outlet can be closed to block the air supply to this target area.

[0035] Furthermore, by adding a micro duct with the same extending direction as the main duct at the top of the main duct, a air discharge port facing the main duct is opened on the micro duct, and the air volume adjusting mechanism is arranged in the micro duct. When the air volume adjusting mechanism is lowered into the main duct, the air discharge port is correspondingly opened, so that the cold air in the micro duct can be blown into the main duct. In a specific example, when the temperature of the target area corresponding to a certain air outlet is too low, while the temperature of the target area corresponding to another air outlet adjacent to and downstream of this air outlet is relatively high, the air volume adjusting mechanism at this air outlet can be controlled to be lowered into the main duct, so that the cold air guided by the air volume adjusting mechanism in the main duct and the micro duct converges at this other air outlet, so as to increase the air volume of this other air outlet, thereby achieving faster cooling of the temperature of the target area corresponding to this other air outlet.

[0036] Furthermore, the number of air discharge ports can be set to multiple, corresponding to setting multiple air volume adjusting mechanisms, and the multiple air volume adjusting mechanisms can be controlled to be lowered into the main duct simultaneously or non-simultaneously, so as to flexibly adjust the air volume of each air outlet, thereby adjusting the temperature of each target area.

[0037] According to another aspect of the present invention, there is provided a control method for the above-mentioned refrigerated storage device. By determining the temperature difference between each target area and determining whether to control the air volume adjustment mechanism to descend into the main air duct according to the temperature difference between each area, the temperature of each area can be adjusted, so as to achieve rapid cooling of each area and a small temperature difference between each area.

[0038] From 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 clearly aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an illustrative rather than restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 FIG. 1 shows a schematic structural diagram of a refrigerated storage device according to the first embodiment of the present invention, where the arrows indicate the direction of cold air flow;

[0041] Figure 2 FIG. 2 shows a schematic structural diagram of the air volume adjustment mechanism descending to the position of blocking the air outlet according to the first embodiment of the present invention, where the arrows indicate the direction of cold air flow;

[0042] Figure 3 FIG. 3 shows a schematic structural diagram of the air volume adjustment mechanism descending into the main air duct and not blocking the air outlet according to the first embodiment of the present invention, where the arrows indicate the direction of cold air flow;

[0043] Figure 4 FIG. 4 shows a schematic flow chart of the control method for the refrigerated storage device according to the first embodiment of the present invention;

[0044] Figure 5 FIG. 5 shows a schematic structural diagram of a refrigerated storage device according to the second embodiment of the present invention, where the arrows indicate the direction of cold air flow;

[0045] Figure 6 FIG. 6 shows a schematic structural diagram of the air volume adjustment mechanism according to the second embodiment of the present invention;

[0046] Figure 7 FIG. 7 shows a schematic structural diagram of a refrigerated storage device according to the third embodiment of the present invention;

[0047] In the drawings:

[0048] 1 - box body,

[0049] 2 - refrigerated compartment,

[0050] 3 - Door body

[0051] 4 - Air supply duct assembly

[0052] 41 - Main air duct

[0053] 411 - First air inlet

[0054] 412 - Air outlet

[0055] 4121 - First air outlet

[0056] 4122 - Second air outlet

[0057] 4123 - Third air outlet

[0058] 42 - Air volume adjustment mechanism

[0059] 421 - Disk-shaped body

[0060] 4211 - Disk-shaped surface

[0061] 422 - Wind baffle

[0062] 423 - First air volume adjustment mechanism

[0063] 424 - Second air volume adjustment mechanism

[0064] 43 - Micro air duct

[0065] 431 - Second air inlet

[0066] 432 - Air exhaust outlet

[0067] 4321 - First air exhaust outlet

[0068] 4322 - Second air exhaust outlet

[0069] 5 - Fan

[0070] 6 - Evaporator

[0071] 7 - Air return inlet

[0072] 8 - Item Detailed implementation manners

[0073] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0074] In the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. For example, in the following description, Figure 1 the left side in

[0075] Embodiment 1:

[0076] Figure 1 shows a schematic structural diagram of a refrigerated storage device according to the first embodiment of the present invention. As Figure 1 shown, the refrigerated storage device can be, for example, a refrigerator or a cold cabinet. The cold cabinet can be used to cool the items 8 to be refrigerated to 0-10°C and cannot cool them below 0°C. As Figure 1 shown, the refrigerated storage device generally includes a cabinet 1, a refrigerated compartment 2, and a door body 3. The refrigerated compartment 2 is arranged inside the cabinet 1, and the door body 3 is used to open or close the refrigerated compartment 2. The refrigerated compartment 2 can be, for example, a refrigerating compartment or a compartment of a refrigerator for refrigerating items 8.

[0077] The refrigerated storage device further includes a air supply duct assembly 4. The air supply duct assembly 4 is arranged on the top of the cabinet 1. The air supply duct assembly 4 includes a main duct 41 and an air volume regulating mechanism 42. The main duct 41 extends along the depth direction of the cabinet 1. A first air inlet 411 communicating with the rear of the cabinet 1 is opened on the main duct 41, and a plurality of air outlets 412 are arranged at intervals along the extension direction of the main duct 41, and each air outlet 412 supplies air to the corresponding target area of the refrigerated compartment 2. In order to improve the air supply speed of the air outlets 412, in a preferred embodiment, each air outlet 412 is configured to gradually contract from its upper end to its lower end. The plurality of air outlets 412 of the main duct 41 include a first air outlet 4121 closest to the rear of the cabinet 1 compared to 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-rear direction) of the refrigerated compartment 2, so that cold air is sent into each area in the depth direction of the refrigerated compartment 2. Compared with the prior art in which air is only supplied from the rear of the refrigerated compartment 2, the temperature in each area in the depth direction of the refrigerated compartment 2 in the present application is more uniform and the cooling is faster.

[0078] The air volume regulating mechanism 42 is disposed on the top of the main air duct 41 in a liftable manner, and is configured to determine whether to descend into the main air duct 41 according to the temperature difference between the target areas in the refrigerating compartment 2, so as to regulate the air volume of the air sent through each air outlet 412. By providing the liftable air volume regulating mechanism 42 on the top of the main air duct 41, when the temperature difference between the areas in the refrigerating compartment 2 is large, the air volume regulating mechanism 42 can be selectively descended into the main air duct 41 to regulate the air volume of the air sent through each air outlet 412, thereby reducing the temperature difference between the areas. In a specific example, the air volume regulating mechanism 42 is configured to be allowed to descend into the main air duct 41 from a position hidden at the top of the main air duct 41 in a controlled manner, and the limit position of the descent is located at a position where the air outlet 412 below it can be blocked.

[0079] The refrigerating and storing device may further include a blowing component (not shown in the figure) and a refrigerating system (not shown in the figure) disposed at the rear of the box body 1. The blowing component may include, for example, a fan 5. The refrigerating system may include, for example, a compressor (not shown in the figure) and an evaporator 6. The compressor is disposed below the fan 5 and can cool the air flowing through it when the compressor starts. The air cooled by the evaporator 6 is supplied to the rear of the box body 1 and then blown into the main air duct 41 by the fan 5. Therefore, in this embodiment, the blowing component 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 communicating with the rear of the box body 1. Additionally, in a specific example, the refrigerating and storing device may further include a return air outlet 7, and the return air outlet 7 is disposed below the evaporator 6 and communicates with the refrigerating compartment 2.

[0080] In this embodiment, by designing the structure and layout position of the main air duct 41, the temperature of each area in the refrigerating compartment 2 can be quickly reduced and the temperature difference between the areas can be reduced 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 extending direction of the main air duct 41, and each air outlet 412 blows air toward the corresponding target area, that is, each target area has an air outlet 412 corresponding to blow air. Since the air outlets 412 are arranged along the depth direction of the box body 1, cold air can be directly blown to each area in the refrigerating compartment 2 along the depth direction of the box body 1. Therefore, there is no problem that the temperature of the area at the rear of the refrigerating compartment 2 is higher than the temperature of the area at the front when blowing air from the rear to the front. Thus, not only can the temperature of each area be quickly reduced, but the temperature difference between the areas can also be reduced to a certain extent.

[0081] By setting the air volume regulating mechanism 42, the temperature difference between each target area in the refrigerating compartment 2 can be further reduced. The principle is that when the temperature difference between the target areas is large, the target area with a higher temperature that needs to reduce the air volume can be determined, and then the air outlet 412 that needs to reduce the air supply volume can be determined. Furthermore, the air volume regulating mechanism 42 located above the air outlet 412 is lowered to the air outlet 412 as shown in Figure 2 or above the air outlet 412 in the main air duct 41 as shown in Figure 3 to reduce the air supply volume of the air outlet 412.

[0082] The above refrigerating storage device can be applied to the scenario of rapidly cooling a large amount of beer and reducing the temperature difference between different areas, and can also be applied to similar scenarios. As long as there is a need for rapid cooling and minimizing the temperature difference between different areas as much as possible, the solution of the embodiment of the present invention can be adopted.

[0083] Correspondingly, the embodiment of the present invention also provides a control method for a refrigerating storage device. As shown in Figure 4 This control method includes:

[0084] [[ID=#15]]Step S100, obtaining the temperatures of each target area in the refrigerating compartment of the refrigerating storage device;

[0085] Step S200, determining the temperature difference between each target area according to the temperatures of each target area;

[0086] Step S300, determining whether it is necessary to control the air volume regulating mechanism of the refrigerating storage device to descend into the main air duct of the refrigerating storage device according to the temperature difference between each target area, so as to adjust the air supply volume of the air outlets passing through the main air duct.

[0087] The refrigerating storage device in this control method is the aforementioned refrigerating storage device in the embodiment of the present invention, which will not be elaborated here one by one. The following takes the main air duct 41 including three air outlets 412 as an example for illustration:

[0088] Define the target area corresponding to the first air outlet 4121 as the first target area, define the target area corresponding to the second air outlet 4122 as the second target area, and define the air outlet in front of the second air outlet 4122 as the third air outlet 4123, and the target area corresponding to the third air outlet 4123 as the third target area.

[0089] For example, after cooling for a period of time, 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. Assuming that in this case, it is determined that there is no need to supply air to the first target area, and it is necessary to increase the air supply to the second target area and the third target area, then as shown in Figure 2As shown, the air volume regulating mechanism 42 is controlled to descend to a position where it can block the first air outlet 4121, so that the cold air in the main air duct 41 cannot be blown to the first target area through the first air outlet 4121. Thus, the air volume delivered through the second air outlet 4122 and the third air outlet 4123 can be indirectly increased, thereby achieving the cooling of the second target area and the third target area.

[0090] For another example, after cooling for a period of time, the temperature of the first target area is 9°C, the temperature of the second target area is 10°C, and the temperature of the third target area is 1°2°C. Assuming that in this case, it is determined that a small amount of air needs to be supplied to the first target area, and the air supply to the second target area and the third target area needs to be increased, then as Figure 3 shown, the air volume regulating mechanism 42 is controlled to descend into the main air duct 41 and to a position where it does not block the first air outlet 4121, so that a small part of the cold air in the main air duct 41 is blown to the first target area through the first air outlet 4121, and most of it is diverted by the air volume regulating mechanism 42 into the main air duct 41 in front of the first air outlet 4121. Thus, the air volume delivered through the second air outlet 4122 and the third air outlet 4123 can be indirectly increased, thereby achieving a faster cooling of the second target area and the third target area compared to the first target area, and further reducing the temperature difference between different areas to a certain extent.

[0091] Embodiment 2:

[0092] The difference between this Embodiment 2 and Embodiment 1 is that:

[0093] In this Embodiment 2, as Figure 5 shown, the air supply duct assembly 4 further includes a micro air duct 43, which is provided at the top of the main air duct 41 and has the same extending direction as the main air duct 41. A second air inlet 431 and an air outlet 432 are formed on the micro air duct 43, the second air inlet 431 is above the first air inlet 411 and communicates with the rear part of the box body 1, and the air outlet 432 faces the main air duct 41 to supply air. Therefore, in this embodiment, the air cooled by the evaporator 6 is supplied to the rear of the box body 1 and then blown into the main air duct 41 and the micro air duct 43 by the fan 5.

[0094] The orthographic projection of the air outlet 432 of the micro air duct 43 on the plane where the multiple air outlets are located is located between the first air outlet 4121 and the second air outlet 4122. The initial position of the air volume adjustment mechanism 42 is located inside the micro air duct 43 and blocks the air outlet 432, so as to prevent the cold air in the micro air duct 43 from being blown into the main air duct 41 and then sent into the refrigerating compartment 2 together with the cold air in the main air duct 41. Thus, this design can hide the air volume adjustment mechanism 42 inside the micro air duct 43 when the cold air in the micro air duct 43 is not needed, and when the cold air in the micro air duct 43 is needed, the air outlet 432 of the micro air duct 43 is opened while the air volume adjustment mechanism 42 is lowered into the main air duct 41. The air volume adjustment mechanism 42 is configured such that when it is controlled to descend from the position hidden at the top of the main air duct 41 into the main air duct 41 and has not reached the limit position, it can converge the cold air guided by the air volume adjustment mechanism 42 in the main air duct 41 and the micro air duct 43 to the second air outlet 4122, so as to increase the air volume discharged from the second air outlet 4122.

[0095] In a specific example, as Figure 6 shown, the air volume adjustment mechanism 42 includes a disc-shaped body 421 and a wind deflector 422. The disc-shaped body 421 is vertically and liftably arranged inside the micro air duct 43, and the disc-shaped body 421 has a disc-shaped surface 4211. The wind deflector 422 is arranged at the periphery of the disc-shaped surface 4211 and extends in a direction perpendicular to the disc-shaped body 421. The wind deflector 422 is configured to change the flow direction of the cold air in front of the wind deflector 422 in the main air duct 41 when the air volume adjustment mechanism 42 descends into the main air duct 41, so that the cold air flows in the direction guided by the wind deflector 422 when it encounters the wind deflector 422, and at the same time, the cold air discharged from the micro air duct 43 through the air outlet 432 also flows in the direction guided by the wind deflector 422, thereby allowing the cold air in the main air duct 41 and the micro air duct 43 to converge to the second air outlet 4122. The number of the wind deflectors 422 can be, for example, one, and the one wind deflector 422 is continuously arranged along the periphery of the disc-shaped surface 4211, similar to the skirt of the disc-shaped surface 4211. As Figure 6 shown, the number of the wind deflectors 422 can also be multiple, and the multiple wind deflectors 422 are arranged at intervals along the periphery of the disc-shaped surface 4211. The disc-shaped body 421 is arranged to be rotatable, so as to change the position of the wind deflector 422 in the main air duct 41, thereby adjusting the flow direction of the cold air in the main air duct 41.

[0096] The difference between the control method in the second 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 cooling for a period of time, the temperature of the first target area is 2°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 the first target area, and the air supply to the second target area needs to be increased, then as Figure 5 shown, the air volume regulating mechanism 42 is controlled to descend into the main air duct 41 to a position where the first air outlet 4121 is not blocked, so that a small part of the cold air in the main air duct 41 is blown through the first air outlet 4121 to the first target area, and most of it is diverted by the air volume regulating mechanism 42 to the main air duct 41 in front of the first air outlet 4121. At the same time, the cold air in the micro air duct 43 is blown into the main air duct 41 through the air outlet 432, and is diverted by the air volume regulating mechanism 42 to converge with most of the cold air diverted by the air volume regulating mechanism 42 in the main air duct 41, and is blown towards the second air outlet 4122, thereby increasing the air supply volume of the second air outlet 4122, so as to achieve faster cooling of the second target area compared with the first target area, and further greatly reduce the temperature difference between different areas.

[0097] Embodiment Three:

[0098] The difference between this embodiment three and embodiment two is that:

[0099] In this embodiment, as Figure 7 shown, the number of air outlets 432 of the micro air duct 43 is multiple, and the multiple air outlets 432 are arranged at intervals along the extending direction of the micro air duct 43. The multiple orthographic projections of the multiple air outlets 432 on the plane where the multiple air outlets are located are arranged alternately with the multiple air outlets, that is, each orthographic projection is located between two adjacent air outlets, and preferably closer to the air outlet closer to the rear part of the box body 1 among the two adjacent air outlets. A air volume regulating mechanism 42 is provided at each air outlet 432. The multiple air volume regulating mechanisms 42 are set to descend into the main air duct 41 simultaneously or non-simultaneously under control to adjust the air supply volume of the air supply through each air outlet. Thus, the air output volume of each air outlet can be flexibly adjusted, so as to adjust the temperature of each target area.

[0100] The difference between the control method in this embodiment three and the control method in embodiment two is that:

[0101] The air volume regulating mechanism corresponding to the first air outlet 4121 is defined as the first air volume regulating mechanism 423, and the first air volume regulating mechanism 423 is provided 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, and the second air volume regulating mechanism 424 is provided at the second air outlet 4322.

[0102] 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 cooling for a period of time, the temperature of the first target area is 7°C, the temperature of the second target area is 9°C, and the temperature of the third target area is 13°C. Assuming this situation, it is determined that a small amount of air supply is required for the first target area, while the air supply to the second and third target areas needs to be increased, especially the air supply to the third target area needs to be increased more. Then, as Figure 7 shown, control the first air volume adjusting mechanism 423 and the second air volume adjusting mechanism 424 to descend into the main air duct 41 respectively and reach positions where the first air outlet 4121 and the second air outlet 4122 are not blocked. In this way, a small part of the cold air in the main air duct 41 is blown to the first target area through the first air outlet 4121, and most of it is diverted by the first air volume adjusting mechanism 423 into the main air duct 41 in front of the first air outlet 4121. At the same time, the cold air in the micro air duct 43 is blown into the main air duct 41 through the first air discharge port and is diverted by the first air volume adjusting mechanism 423 to converge with most of the cold air diverted by the first air volume adjusting mechanism 423 in the main air duct 41. Part of it is blown towards the second air outlet 4122, and the other part is diverted by the second air volume adjusting mechanism 424 into the main air duct 41 in front of the second air outlet 4122. At the same time, the cold air in the micro air duct 43 is blown into the main air duct 41 through the second air discharge port and is diverted by the second air volume adjusting mechanism 424 to converge with most of the cold air diverted by the second air volume adjusting mechanism 424 in the main air duct 41, and then they are blown towards the third air outlet 4123 together. As a result, the air supply volume of the second air outlet 4122 is increased slightly, and the air supply volume of the third air outlet 4123 is increased significantly, so as to achieve a faster cooling of the second target area compared with the first target area, and a faster cooling of the third target area compared with the second target area, and thus the temperature difference between different areas can be greatly reduced.

[0103] In the description of this specification, the description referring to terms such as "one embodiment", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0104] At this point, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the common principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized to cover all such other variations or modifications.

Claims

1. A refrigerated storage device, characterized in that: The refrigeration system comprises a box body, a refrigeration compartment arranged in the box body, and an air supply duct assembly arranged on the top of the box body, wherein the air supply duct assembly comprises: a main air duct extending in a depth direction of the box body, the main air duct being provided with a plurality of air outlets spaced apart along the extension direction of the main air duct, and each of the air outlets supplying air toward a target area corresponding to the refrigeration compartment; an air volume regulating mechanism, which is movably disposed at the top of the main air duct and is configured to determine whether to descend into the main air duct according to the temperature difference between each target area in the refrigeration compartment, so as to regulate the air volume supplied through each of the air outlets; The air volume regulating mechanism is configured to allow a controlled descent from a position hidden at the top of the main air duct into the main air duct, and the limit position allowed for descent is located at a position where the air outlet located below the mechanism can be blocked; The main air duct is further provided with a first air inlet, which is communicated with the rear portion of the box body. The air supply duct assembly further includes: a breeze duct, arranged at the top of the main air duct and extending in the same direction as the main air 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 portion of the box, the air outlet supplying air toward the main air duct, and the orthographic projection of the air outlet on the plane where the multiple air outlets are located being located between any two adjacent air outlets among the multiple air outlets; The air volume regulating mechanism is arranged in the breeze duct and is blocked at the air outlet, thereby being hidden at the top of the main air duct.

2. The refrigerated storage device according to claim 1, characterized in that: The air volume regulating mechanism is configured to, when it is controlled to descend from a position hidden at the top of the main air duct to the inside of the main air duct and has not reached the limit position, gather the cold air in the main air duct and the breeze duct guided by the air volume regulating mechanism to the next air outlet adjacent to the air outlet located below the air volume regulating mechanism, so as to increase the air volume of the next air outlet.

3. The refrigerated storage device according to claim 2, 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 adjustment 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 from the breeze duct through the exhaust port 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 at the next air outlet adjacent to the air outlet located below the air volume adjustment mechanism.

4. The refrigerated storage device according to claim 3, characterized in that: There are multiple windshields, and the multiple windshields are spaced apart and arranged along the periphery of the disc-shaped surface; 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.

5. The refrigerated storage device according to any one of claims 1 to 4, characterized in that: There are multiple air outlets, and the multiple air outlets are spaced apart and arranged along the extension direction of the breeze duct. The multiple orthographic projections of the multiple air outlets on the plane where the multiple air outlets are located are alternately arranged with the multiple air outlets, and the air volume adjustment mechanism is provided at each of the air outlets. 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.

6. The refrigerated storage device according to any one of claims 1 to 4, characterized in that: The plurality of air outlets include a first air outlet closest to the rear of the box body compared to the other air outlets and a second air outlet adjacent to the first air outlet; The number of the air outlet is one, and the orthographic projection of the air outlet on the plane where the multiple air outlets are located is located between the first air outlet and the second air outlet.

7. The refrigerated storage device according to any one of claims 1 to 4, characterized in that: The air outlet is configured to gradually shrink from its upper end to its lower end; The refrigerated storage device also includes: an air supply assembly, disposed at the rear of the box body, for blowing 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; The return air port is arranged below the air supply assembly and is communicated with the refrigeration compartment.

8. A method for controlling a refrigerated storage device according to any one of claims 1 to 7, characterized in that: The steps include: Obtaining the temperature of each target area in the refrigeration compartment of the refrigerated storage device; determining a temperature difference between each target area according to the temperature of each target area; According to the temperature difference between the target areas, it is determined whether the air volume regulating mechanism of the refrigerated storage device needs to be controlled to descend into the main air duct of the refrigerated storage device to regulate the air volume supplied through each air outlet of the main air duct.

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