Air regulating device and refrigeration equipment with same

Abstract

The invention provides an air regulation device and refrigeration equipment with the air regulation device. The air regulation device comprises an upstream air measurement assembly, a downstream air measurement assembly, an air regulation plate located between the upstream air measurement assembly and the downstream air measurement assembly and a control module, and the upstream air measurement assembly comprises at least one upstream fan and an upstream sensor for detecting the rotating speed of the upstream fan; the downstream wind measuring assembly comprises at least two downstream fans and downstream sensors for detecting the rotating speeds of the downstream fans; the control module comprises a control unit and a driving assembly in communication connection with the control unit, the driving assembly is fixed to the air adjusting plate, and the downstream sensor and the upstream sensor are both in communication connection with the control unit. The control unit controls the driving assembly to adjust the distance from the edge of the air adjusting plate to the inner wall of the air duct according to signals of the downstream sensor and the upstream sensor, then the uniformity of downstream air outlet of the air duct is adjusted, air entering the storage chamber is made to be uniform, the quality of article storage is improved, and then the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly to an air regulating device and a refrigeration equipment having the same. Background Art

[0002] At present, air-cooled refrigeration equipment conveys cold air to the freezer or the refrigerator compartment through air circulation. When the compressor works, the fan motor is powered on and runs simultaneously. By forced convection of the fan, the cold air is transferred to the space of the freezer and the refrigerator compartment. Since some items have high requirements for the storage environment, especially for the air volume and air speed, when the air speed or air volume in the cold air reaching the compartment is uneven, it will affect the user experience. Summary of the Invention

[0003] The present invention provides an air regulating device and a refrigeration equipment having the same to solve one of the above problems.

[0004] To achieve the above object, the technical solutions provided by the present invention are as follows:

[0005] The present invention provides an air regulating device for use in an air duct. The air regulating device includes:

[0006] An upstream air velocity measuring component, including at least one upstream fan and an upstream sensor for detecting the rotation speed of the upstream fan;

[0007] A downstream air velocity measuring component, including at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fans;

[0008] An air regulating plate located between the upstream air velocity measuring component and the downstream air velocity measuring component;

[0009] A control module, including a control unit and a driving component communicatively connected to the control unit. The driving component is fixed to the air regulating plate, and both the downstream sensor and the upstream sensor are communicatively connected to the control unit;

[0010] Wherein, the control unit controls the driving component to adjust the distance from the edge of the air regulating plate to the inner wall of the air duct according to the signals of the downstream sensor and the upstream sensor.

[0011] Further, at least the end part of the air regulating plate is made of an elastic material, and the driving component is fixed to the end part of the air regulating plate to adjust the distance from the edge to the center of the air regulating plate.

[0012] Further, the air regulating plate includes a rotating shaft and a wind plate body rotatably connected to the rotating shaft. The rotating shaft is used for fixing on the inner wall of the air duct, and the driving component is fixed to the wind plate body to adjust the rotation angle of the air regulating plate relative to the rotating shaft.

[0013] Furthermore, the air regulating plate comprises a rotating shaft and an air plate body rotatably connected to the rotating shaft, and the rotating shaft is used to be slidably connected to the inner wall of the air duct;

[0014] The driving assembly is fixed to the rotating shaft, and the driving assembly adjusts the rotating shaft to drive the wind plate body to move radially along the air duct to adjust the distance from the edge of the wind plate body to the inner wall of the air duct;

[0015] Alternatively, the driving assembly is fixed to the rotating shaft and the wind plate body respectively, and the driving assembly adjusts the rotating shaft to drive the wind plate body to move radially along the air duct and simultaneously adjusts the rotation of the wind plate body to adjust the distance from the edge of the wind plate body to the inner wall of the air duct.

[0016] Furthermore, the air regulating plate includes a rotating shaft, a first air plate and a second air plate which are rotatably connected to the rotating shaft respectively, and the driving assembly is fixed to the first air plate and the second air plate respectively.

[0017] Furthermore, the air regulating plate also includes an air plate body, a first air guide plate and a second air guide plate located at both ends of the air plate body, the first air guide plate and the second air guide plate are arranged to be inclined in the opposite direction relative to the extension direction of the air plate body, and the first air guide plate and the second air guide plate are both arc-shaped.

[0018] Furthermore, the driving assembly includes a pair of elastic connectors respectively located on both sides of the center of the air regulating plate along its extension direction, and a first adjustment structure and a second adjustment structure respectively connected to the ends of the elastic connectors.

[0019] Furthermore, the first adjustment structure and the second adjustment structure both include a limit plate fixed to the elastic connecting member, and the limit plate is communicatively connected to the control unit.

[0020] Furthermore, the first adjustment structure and / or the second adjustment structure further comprises a buffer structure connected to a side of the limiting plate away from the elastic connecting member, and the buffer structure is deformed after receiving an external force from the limiting plate.

[0021] Furthermore, the number of the upstream fans is the same as the number of the downstream fans, and the upstream fans and the downstream fans are both arranged along the radial direction of the air duct, and both correspond to the air openings formed by the edge of the air regulating plate and the inner wall of the air duct.

[0022] Furthermore, the radius of the upstream fan is not less than the radius of the downstream fan.

[0023] The present invention also provides a refrigeration device, which includes an air duct and the above-mentioned air regulating device arranged in the air duct. The air duct includes an air supply duct and a return air duct, and the air regulating device is located in the air supply duct and / or the return air duct.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The air regulating device of the present invention adjusts the distance from the edge of the air regulating plate to the inner wall of the air duct according to the rotational speeds of the upstream fan and the downstream fan through the control module, so as to adjust the uniformity of the air outlet in the downstream of the air duct. Furthermore, the air entering the storage compartment is relatively uniform, improving the quality of item preservation and thus enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a partial structure of an embodiment of the refrigeration device of the present invention.

[0026] Figure 2 is Figure 1 A three-dimensional structure diagram when the air regulating plate of the air regulating device at position A in

[0027] Figure 3 is Figure 2 A three-dimensional structure diagram when the air regulating plate in

[0028] Figure 4 is Figure 3 A three-dimensional structure diagram of the cooperation between the air regulating plate and the driving component in

[0029] Figure 5 It is a three-dimensional structure diagram of the air regulating plate of the air regulating device in another embodiment of the air regulating device.

[0030] Figure 6 It is a three-dimensional structure diagram of the air regulating device in another embodiment of the air regulating device.

[0031] Figure 7 is Figure 6 A three-dimensional structure diagram when the sub-air regulating plate in

[0032] Figure 8 is Figure 6 A three-dimensional structure diagram when the sub-air regulating plate in another embodiment in

[0033] Figure 9 It is a flowchart of an embodiment of the control method for the refrigeration device of the present invention.

[0034] Figure 10 It is a flowchart of another embodiment of the control method for the refrigeration device of the present invention.

[0035] Figure 11 It is a flowchart of the adjustment step in the control method for the refrigeration device of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the auxiliary drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention. Specifically, in the present invention, the user's operation surface is taken as the front, the direction towards the ground is taken as the lower, and on the contrary, the direction away from the ground is taken as the upper. Other descriptions indicating orientation are defined based on "upper" and "lower".

[0038] In the various drawings of the present invention, for the convenience of illustration, the dimensions of some structures or parts are exaggerated relative to other structural parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present invention.

[0039] The present invention provides an air regulating device 10 and a refrigeration device having the same, as Figures 1 to 8 shown. Among them, the refrigeration device includes an air duct 20, and the air duct 20 includes a supply air duct 21 and a return air duct (not shown). The supply air duct 21 is formed between the air duct cover plate 2 and the inner wall of the rear of the inner container to convey the cooled air to the storage room. The return air duct is located at the lower part of the storage room and communicates with the storage room and the refrigeration unit to convey the air that has undergone heat exchange in the storage room to the refrigeration room for re-cooling. Since the air circulates between the storage room and the refrigeration room, the odor of the gas passing through the air path is considered to represent the odor in the storage room.

[0040] The supply air duct 21 includes a plurality of supply air ducts and a fan slot (not shown) connecting the plurality of supply air ducts. The refrigeration device further includes a fan 40 located in the fan slot upstream of the air duct. The fan 40 provides air flow for the air duct 20.

[0041] The refrigeration device further includes an odor detection device (not shown) disposed in the air duct 20 or at the air outlet of the air duct. The odor detection device includes a housing, an odor sensing unit and an air volume detection unit inside the housing. The housing is provided with an air inlet which faces the air conditioning device, so that the adjusted gas directly enters the housing for detection. The air volume detection unit is used to detect the air volume entering the housing, and gives corresponding indications when the air volume meets the requirements and also gives corresponding indications when the air volume does not meet the requirements. Preferably, the air inlet is located in the middle of the air supply duct in the radial direction to receive more representative gas.

[0042] The air conditioning device 10 is located upstream of the odor detection device to adjust the wind speed entering the odor detection device. The air conditioning device 10 adjusts the uniformity of the wind speed pre-entering the odor detection device, improves the detection accuracy of the odor detection device, can accurately provide the odor in the storage room for the user, and the user can effectively judge the freshness state of the items in time, improving the user experience.

[0043] In a specific embodiment, as Figures 1 to 3 shown, the air conditioning device 10 is located in one of the air supply ducts 21, and the odor detection device is located in the air supply duct 21 or at the air outlet of the air supply duct 21. That is, the odor detection device is disposed in the storage room near the downstream of the air supply duct 21 to detect the odor of the gas whose wind speed has been adjusted by the air conditioning device 10, improving the accuracy of the odor detection device.

[0044] In another specific embodiment, a plurality of air conditioning devices 10 are provided and are respectively located in all the air supply ducts 21. Since the gas transported in all the air supply ducts 21 has been adjusted by the air conditioning device 10 and the gas in the storage room is considered to be in a uniform speed state, the odor detection device in this embodiment can be located at any position in the storage room.

[0045] In another specific embodiment, the air conditioning device 10 is located in the return air duct, and the odor detection device is correspondingly located downstream in the return air duct or at the air outlet of the return air duct to detect the odor of the gas whose wind speed has been adjusted by the air conditioning device 10, improving the accuracy of the odor detection device.

[0046] In another specific embodiment, the air conditioning device 10 is located in both the air supply duct 21 and the return air duct. The gas in the air path is uniformly adjusted twice by the air conditioning device 10, and it is considered that the wind speed at any position in the air path is in the same state. The odor detection device is located at any position in the air path formed by the air supply duct 10 and the return air duct, improving the accuracy of the odor detection device.

[0047] The following takes the air regulating device 10 being located in the air outlet duct 21 as an example for detailed description.

[0048] As Figure 2 , Figure 3 and Figure 6 shown, the air regulating device 10 includes an upstream air velocity measuring component 11, a downstream air velocity measuring component 12, an air regulating plate 13 located between the upstream air velocity measuring component 11 and the downstream air velocity measuring component 12, and a control module.

[0049] The upstream air velocity measuring component 11 includes at least one upstream fan 111 and an upstream sensor 112 for detecting the rotational speed of the upstream fan 111; all the upstream fans 111 have the same size and specification. The downstream air velocity measuring component 12 includes at least two downstream fans 121 and a downstream sensor 122 for detecting the rotational speed of the downstream fans 121, and all the downstream fans 121 have the same size and specification; preferably, the number of the upstream fans 111 is the same as the number of the downstream fans 121.

[0050] As Figure 2 and Figure 3 shown, the upstream fans 111 and the downstream fans 121 are both arranged radially along the duct 20, and the arrangement dimensions of the upstream fans 111 and the downstream fans 121 can cover the radial space of the duct 20, so that the air passing through the duct 20 can be adjusted by the downstream fans 121, that is, the arrangement dimensions of the upstream fans 111 and the downstream fans 121 are both determined according to the radial dimension of the duct 21.

[0051] Preferably, the diameter of the upstream fans 111 is larger than the diameter of the downstream fans 121. By the upstream fans 111 delivering more air volume to the downstream fans 121, the downstream fans 121 can more quickly sense the air volume and the change of the air volume transported from the upstream to the downstream of the duct 20, improving the working efficiency of the air regulating device.

[0052] In order to reduce the error of the upstream sensor 112 detecting the rotational speed of each upstream fan 111, the upstream sensor 112 is located in the middle of two adjacent upstream fans 111. Correspondingly, the downstream sensor 122 is located in the middle of two adjacent downstream fans 121.

[0053] The control module includes a control unit and a driving component communicatively connected to the control unit. Among them, the control unit is communicatively connected to the downstream sensor 122 and the upstream sensor 112 respectively to obtain the rotational speeds of the upstream fans 111 and the downstream fans 121.

[0054] As a preferred embodiment of the present invention, the air regulating plate 13 includes a rotating shaft 132 and an air plate body 131 fixedly or rotatably connected to the rotating shaft 132. Among them, the air plate body 131 has a covering state of covering the air duct 20 and a ventilation state of forming a ventilation opening with the inner wall of the air duct 20. In the ventilation state, the edge of the air regulating plate 13 forms a ventilation opening with the inner wall of the air duct 20, with a first ventilation opening 211 formed at one end with the inner wall of the air duct 20 and a second ventilation opening 212 formed at the other end with the inner wall of the air duct 20. The upstream fan 111 and the downstream fan 121 are respectively arranged in one-to-one correspondence with the ventilation openings.

[0055] As Figure 2 and Figure 5 As shown, the air regulating plate 13 further includes a first air guiding plate 133 and a second air guiding plate 134 located at both ends of the air plate body 131. The first air guiding plate 133 and the second air guiding plate 134 are inclined in a direction opposite to the extending direction of the air plate body 131, that is, one of the first air guiding plate 133 and the second air guiding plate 134 is inclined towards the upstream air measuring assembly 11, and the other is inclined towards the downstream air measuring assembly 12. In the ventilation state, the first air guiding plate 133 and the second air guiding plate 134 improve the efficiency of the air flow passing through the ventilation opening.

[0056] Preferably, both the first air guiding plate 133 and the second air guiding plate 134 are arc-shaped. When the air flow passes through the ventilation opening, the arc-shaped first air guiding plate 133 and the second air guiding plate 134 can buffer the wind speed entering the downstream air measuring assembly 12, avoiding a large change in the rotational speed of the downstream fan 121.

[0057] As another preferred embodiment of the present invention, the air regulating plate 13 is provided with a window 135 and a sub-air regulating plate 136 for opening or closing at least part of the window 135. The window 135 is arranged on the air plate body 131, and the window 135 is arranged in one-to-one correspondence with the downstream fan 121, which is convenient for controlling the wind speed downstream of the air duct 20 by adjusting the size of the window 135.

[0058] The driving component is fixedly connected to the air deflector main body 131 and / or the sub-air deflector 136 and / or the rotating shaft 132. The control unit controls the driving component to drive the air deflector main body 131 and / or the sub-air deflector 136 and / or the rotating shaft 132 to change the position or state. The control unit controls the driving component to adjust the distance between the edge of the air deflector 13 and the inner wall of the air duct 20 or the size of the window 135 blocked according to the rotation speed signals of the downstream sensor 122 and the upstream sensor 112, so as to adjust the wind speed entering the downstream of the air duct 20 through the ventilation opening or the window 135. By monitoring the rotation speeds of all the downstream fans 121, it is determined whether the wind speeds in the downstream of the air duct 20 are the same, so that the gas entering the storage room is relatively uniform, and the quality of the items stored in the storage room is improved.

[0059] As another preferred embodiment of the present invention, the driving component is fixedly connected to the air deflector main body 131, and directly drives the air deflector main body 131 to move or deform.

[0060] In this embodiment, as Figures 2 to 4 and Figure 6 shown, the driving component includes elastic connecting members 143 respectively fixed on both sides of the center of the air deflector 13 along its extending direction, and a first adjusting structure 141 and a second adjusting structure 142 respectively fixed to the other ends of the elastic connecting members 143. That is, the elastic connecting members 143 are fixed on the air deflector main body 131, and the elastic connecting members 143 can buffer the changes of the air deflector main body 131, avoiding large changes in the wind speed entering the downstream of the air duct 20 caused by too fast changes in the size of the ventilation opening, and affecting the efficiency of adjusting the wind speed in the downstream of the air duct 20.

[0061] Specifically, the first adjusting structure 141 and the second adjusting structure 142 are respectively located on both sides of the rotating shaft 132 and close to the end of the air deflector main body 131, so as to reduce the acting forces exerted on the air deflector main body 131 by the first adjusting structure 141 and the second adjusting structure 142. The control unit controls different forces to be applied on the first adjusting structure 141 and the second adjusting structure 142, and then drives the elastic connecting members 143 to pull the air deflector main body 131 to move different distances or deform with different sizes, so that the sizes of the ventilation openings formed by the edges of the air deflector main body 131 and the inner wall of the air duct 20 are different. By adjusting the sizes of different ventilation openings, the air volume entering the downstream of the air duct 20 can be controlled, and thus the wind speed in the downstream of the air duct 20 can be adjusted.

[0062] Preferably, the first adjusting structure 141 is located on the side of the air deflector main body 131 facing the upstream air velocity measuring assembly 11, and the second adjusting structure 142 is located on the side of the air deflector main body 131 facing the downstream air velocity measuring assembly 12.

[0063] Specifically, both the first adjustment structure 141 and the second adjustment structure 142 include a limiting plate 141 fixed to the elastic connecting member 143, and the limiting plate 1411 is communicatively connected to the control unit. That is, the control unit applies a thrust or a pulling force to the limiting plate 141.

[0064] Preferably, the first adjustment structure 141 and / or the second adjustment structure 142 further includes a buffer structure 1412 connected to the side of the limiting plate 1411 facing away from the elastic connecting member 143. The buffer structure 1412 deforms when subjected to an external force from the limiting plate 1411. The arrangement of the buffer structure 1412 can buffer the amplitude of the change of the air duct main body 131, thereby making the change of the ventilation opening slow, making the change of the wind speed downstream of the air duct 20 slow, and improving the adjustment efficiency downstream of the air duct 20.

[0065] It can be understood that the buffer structure 1412 can be provided only on the first adjustment structure 141, only on the second adjustment structure 142, or on both the first adjustment structure 141 and the second adjustment structure 142.

[0066] In this embodiment, the buffer structure 1412 is composed of a plurality of parallelogram link structures, and the deformation of the buffer structure 1412 is adjusted through the hinge relationship at the corners of the parallelogram link structures. Of course, the buffer structure 1412 can also be a structure made of other materials.

[0067] Based on the structure of the above-mentioned driving assembly, in a specific implementation manner, at least the end portion of the air duct adjusting plate 13 is made of an elastic material. That is, at least the end portion of the air duct main body 131 is made of an elastic material. The air duct main body 131 covers the air duct 20 in the initial state. When the end portion of the air duct main body 131 deforms, a first ventilation opening 211 is formed between the first end of the air duct main body 131 and the inner wall of the air duct 20, and a second ventilation opening 212 is formed between the second end of the air duct main body 131 and the inner wall of the air duct 20.

[0068] In this embodiment, the driving assembly is fixed to the end portion of the air duct main body 131 to adjust the distance from the edge to the center of the air duct main body 131. That is, the first adjustment structure 141 and the second adjustment structure 142 are respectively fixed to the end portion of the air duct main body 131. During the process of applying an external force to the end portion of the air duct main body 31 by the first adjustment structure 141 and the second adjustment structure 142, the end portion of the air duct main body 131 deforms to form a first ventilation opening 211 and a second ventilation opening 212 with the inner wall of the air duct 20, and external forces of different magnitudes are applied to the end portion of the air duct main body 31. By adjusting the magnitude of the deformation of the end portion of the air duct main body 131, the sizes of the first ventilation opening 211 and / or the second ventilation opening 212 are adjusted, so that the wind speed downstream of the air duct 20 is uniform.

[0069] In another specific embodiment, the rotating shaft 132 is used to be fixed on the inner wall of the air duct 20, the air plate main body 131 is rotatably connected to the rotating shaft 132, the first adjusting structure 141 and the second adjusting structure 142 are respectively fixed on both sides of the air plate main body 131, and the size of the ventilation opening formed by the edge of the air plate main body 131 and the inner wall of the air duct 20 is adjusted by adjusting the angle of the air plate main body 131 rotating relative to the rotating shaft 132.

[0070] In another specific embodiment, as Figure 5 shown, the air plate main body 131 includes a first air plate 1311 and a second air plate 1312 located on both sides of the rotating shaft 132. The first air plate 1311 and the second air plate 1312 are respectively rotatably connected to the rotating shaft 13. When the first air plate 1311 and the second air plate 1312 are coplanar, they cover the air duct. The end of the first air plate 1311 and the inner wall of the air duct 20 form a first ventilation opening 211, and the end of the second air plate 1312 and the inner wall of the air duct 20 form a second ventilation opening 212. The first adjusting structure 141 is fixed to the first air plate 1311 and drives the first air plate 1311 to rotate relative to the rotating shaft 132 to adjust the size of the ventilation opening formed by the distance from the edge of the first air plate 1311 to the inner wall of the air duct 20. The second adjusting structure 142 is fixed to the second air plate 1312 and drives the second air plate 1312 to rotate relative to the rotating shaft 132 to adjust the size of the ventilation opening formed by the distance from the second air plate 1312 to the inner wall of the air duct 0, so as to meet the adjustment of the diversified modes of the air adjusting plate 13.

[0071] As another preferred embodiment of the present invention, the driving assembly is fixedly connected to the sub-air adjusting plate 136. In this embodiment, the structure of the driving assembly is the same as that of the above embodiment and will not be described in detail.

[0072] In a specific embodiment, as Figure 6 and Figure 7 shown, the sub-air adjusting plate 136 is rotatably connected to the air adjusting plate 13. In this embodiment, the air adjusting plate 13 further includes a sub-rotating shaft (not shown) for rotatably connecting the sub-air adjusting plate 136. The driving assembly controls the angle of the sub-air adjusting plate 136 rotating relative to the sub-rotating shaft to adjust the size of the sub-air adjusting plate 136 covering the window 135. The position and angle of the sub-rotating shaft relative to the window 135 are not limited in this embodiment, as long as the rotation of the sub-air adjusting plate 136 can be realized, it is within the protection scope of this embodiment.

[0073] In another specific embodiment, as Figure 8As shown, the sub-air regulating plate 136 is slidably connected to the air regulating plate 13. The air regulating plate 13 further includes a slideway 137 provided around the window 135 and a stop portion (not shown) at the end of the slideway 137. The sub-air regulating plate 136 is located within the slideway 137. The driving assembly drives the sub-air regulating plate 136 to move along the slideway 137 to open or close at least part of the window 135. In this embodiment, the position and angle of the slideway 137 relative to the window 135 are not limited, as long as the rotation of the sub-air regulating plate 136 can be achieved, it is within the protection scope of this embodiment.

[0074] Preferably, the slideway 137 extends along the radial direction of the air duct 20 to adjust the size of the window 135 along the radial direction of the air duct 20, facilitating the air supply to the downstream of the air duct 20 and achieving the purpose of quickly adjusting the wind speed and uniformity.

[0075] As another preferred embodiment of the present invention, the driving assembly is fixedly connected to the air regulating plate 13 and the sub-air regulating plate 136 respectively. The control unit controls the driving assembly to adjust the distance from the edge of the air regulating plate 13 to the inner wall of the air duct as needed, and at the same time, it can selectively control the sub-air regulating plate 136 to adjust the size of the covered window 135. In this embodiment, the structure of the driving assembly is the same as that in the above embodiment and will not be elaborated herein.

[0076] As another preferred embodiment of the present invention, the driving assembly is connected to the rotating shaft 132, and the rotating shaft 132 is fixedly connected to the air regulating plate 13. By driving the rotating shaft 132, the air plate main body 131 is driven to move or rotate.

[0077] In a specific embodiment, the rotating shaft 132 is rotatably connected to the inner wall of the air duct 20. The driving assembly drives the rotating shaft 132 to rotate, thereby driving the air plate main body 132 to rotate, and thus forming a ventilation opening with the inner wall of the air duct 20. By changing the magnitude of the force applied to the rotating shaft 132, the angle of the air plate main body 132 is changed, and thus the size of the ventilation opening is changed.

[0078] In another specific embodiment, the rotating shaft 132 is slidably connected to the inner wall of the air duct 20. The driving assembly directly drives the rotating shaft 132 to move radially relative to the air duct, thereby driving the air plate main body 131 to move radially along the air duct, and thus changing the distance between the edge of the air plate main body 131 and the inner wall of the air duct 20.

[0079] In another specific embodiment, the rotating shaft 132 is slidably and rotatably connected to the inner wall of the air duct 20. The driving assembly is fixed to the rotating shaft 132, and the driving assembly adjusts the rotating shaft 132 to drive the air plate main body 131 to move so as to adjust the distance between the edge of the air plate main body 131 and the inner wall of the air duct 20; and / or, the driving assembly drives the rotating shaft 132 to drive the air plate main body 131 to rotate so as to adjust the distance between the edge of the air plate main body 131 and the inner wall of the air duct 20, thereby realizing diversified adjustment of the air adjusting plate 13.

[0080] As another preferred embodiment of the present invention, the driving assembly is respectively fixed to the rotating shaft 132 and the air plate main body 131. In this embodiment, the rotating shaft 132 is slidably and rotatably connected to the inner wall of the air duct 20. The driving assembly adjusts the rotating shaft 132 to drive the air plate main body 131 to move so as to adjust the distance between the edge of the air plate main body 131 and the inner wall of the air duct 20; at the same time, the driving assembly controls the air plate main body 131 to rotate relative to the rotating shaft 132 so as to adjust the distance between the edge of the air plate main body 131 and the inner wall of the air duct 20, thereby realizing diversified adjustment of the air adjusting plate 13.

[0081] It can be understood that in the above embodiments, the mutual relationship and adjustment method between the driving assembly and the air adjusting plate 13 can be combined arbitrarily, and diversified adjustment of the air adjusting plate 13 can be realized.

[0082] The present invention also provides a control method for a refrigeration device, and the above refrigeration device realizes the adjustment of the air volume and uniformity at the air outlet of the air duct 20 by executing the control method.

[0083] When the temperature in the storage room is higher than a certain temperature, the fan 40 is started to supply air to the storage room, and at the same time, the air adjusting device 10 is controlled to start working.

[0084] Specifically, as Figure 9 and Figure 10 shown, the control method includes obtaining the rotation speed of the upstream fan 111 through the upstream sensor 112, and controlling the air adjusting plate 13 to open the air duct 20 to form a ventilation opening; obtaining the rotation speeds of a plurality of downstream fans 121 through the downstream sensor 122, and judging whether the rotation speeds of any two downstream fans 121 are the same; if not, entering the adjustment step, controlling the driving assembly to drive the air adjusting plate 13 to adjust the size of the ventilation opening until the rotation speeds of all the downstream fans 121 are the same, and then maintaining the current size of the ventilation opening to continue supplying air.

[0085] The control method of the present invention feeds back the rotation speed of the downstream fan 11 to the control unit through the downstream sensor 122, and then adjusts the size of the ventilation opening to change the air volume conveyed to the downstream of the air duct 20. By monitoring whether the rotation speeds of all the downstream fans 121 are the same, it is determined whether the wind speeds conveyed to the downstream of the air duct 20 are the same. Furthermore, air with a uniform wind speed can be conveyed into the storage room to meet the storage needs of users or the detection requirements of the odor detection device, thereby enhancing the user experience.

[0086] Specifically, after obtaining the rotation speed of the upstream fan 111 through the upstream sensor 112, the rotation speed of the upstream fan 111 is compared with the first threshold. If the rotation speed of the upstream fan 111 is greater than the first threshold, the air regulating plate 13 is controlled to open the air duct to form a ventilation opening, and air is sent to the downstream of the air duct 20 through the ventilation opening, thereby driving the downstream fan 121 to rotate.

[0087] If the rotation speed of the upstream fan 111 is not greater than the first threshold, wait for a preset duration continuously. If the rotation speed of the upstream fan 111 is still not greater than the first threshold, then control the blower 40 to increase the air volume, and then control the upstream sensor 112 to detect the rotation speed of the upstream fan 111.

[0088] Preferably, after the downstream fan 121 rotates and lasts for the first duration, that is, wait for the rotating downstream fan 121 to be in a stable state, and then obtain the rotation speeds of several downstream fans 121, so that the detection result of the downstream sensor 122 is more representative and accurate.

[0089] Such as Figure 3 As shown, the adjustment step includes: further determining whether the rotation speed difference between any two downstream fans 121 is greater than the second threshold. If so, enter the high-amplitude adjustment step; if not, enter the low-amplitude adjustment step. The air regulating plate 13 can be adjusted according to the actual situation through the high-amplitude adjustment step and / or the low-amplitude adjustment step, which can effectively improve the adjustment efficiency.

[0090] In the embodiment where at least the end part of the air regulating plate 13 is made of an elastic material, the high-amplitude adjustment step includes determining whether the downstream fan 121 with a higher rotation speed is closer to the first ventilation opening 211 or the second ventilation opening 212; if it is closer to the first ventilation opening 211, then control the driving component to drive the first end to deform so that the first ventilation opening 211 becomes smaller and / or control the driving component to drive the second end to deform in the opposite direction so that the second ventilation opening 212 becomes larger, so that the rotation speed of the downstream fan 121 with a higher rotation speed becomes smaller and / or the rotation speed of the downstream fan 121 with a lower rotation speed becomes larger, and finally the rotation speeds of all the downstream fans 121 are the same.

[0091] Accordingly, if the downstream fan 121 with a higher rotational speed is close to the second ventilation opening 212, the control driving assembly drives the second end to deform so that the second ventilation opening 212 becomes smaller and / or the control driving assembly drives the first end to deform in the opposite direction so that the first ventilation opening 211 becomes larger, and the wind speed downstream of the air duct 20 can also be adjusted.

[0092] Then, re-judge the rotational speed difference between any two of the downstream fans 121. If the rotational speed difference between any two downstream fans 121 is still greater than the second threshold, re-enter the high-amplitude adjustment step; if the rotational speed difference between any two downstream fans 121 is no longer greater than the second threshold, then enter the low-amplitude adjustment step.

[0093] In the embodiment where the first wind plate 1311 and the second wind plate 1312 are respectively rotatably connected to the rotating shaft 132, the high-amplitude adjustment step includes: judging whether the downstream fan with a higher rotational speed is close to the first ventilation opening 211 or the second ventilation opening 212; if it is close to the first ventilation opening 211, controlling the driving assembly to drive the first wind plate 1311 to rotate relative to the rotating shaft 13 to reduce the first ventilation opening 211, and / or controlling the driving assembly to drive the second wind plate 1312 to rotate relative to the rotating shaft 132 to increase the second ventilation opening 212; so that the rotational speed of the downstream fan 121 with a higher rotational speed becomes smaller or the rotational speed of the downstream fan 121 with a lower rotational speed becomes larger, improving the adjustment efficiency.

[0094] Accordingly, if the downstream fan 121 with a higher rotational speed is close to the second ventilation opening 212, controlling the driving assembly to drive the second wind plate 1312 to rotate relative to the rotating shaft 132 to reduce the second ventilation opening 212, and / or controlling the driving assembly to drive the first wind plate 1311 to rotate relative to the rotating shaft 132 to increase the first ventilation opening 211; the rotational speed of the downstream fan 121 can also be adjusted.

[0095] Then, re-judge the rotational speed difference between any two downstream fans 121 until the rotational speed difference between any two downstream fans 121 is not greater than the second threshold; then enter the low-amplitude adjustment step.

[0096] In the embodiment where a window 135 is provided on the air duct adjusting plate 13, the high-amplitude adjustment step includes: judging which side of the window 135 the downstream fan 121 with a higher rotational speed is close to; then controlling the sub-air duct adjusting plate 136 to rotate or move relative to the air duct adjusting plate 13 to adjust the size of the window 135 covered; re-judge the rotational speed difference between any two downstream fans 121 until the rotational speed difference between any two downstream fans 121 is not greater than the second threshold; then, enter the low-amplitude adjustment step.

[0097] In the specific embodiment where the rotating shaft 132 is slidably connected to the inner wall of the air duct 20, the high-amplitude adjustment step includes: determining whether the downstream fan 121 with a higher rotation speed is closer to the first ventilation opening 211 or the second ventilation opening 212; if it is closer to the first ventilation opening 211, then controlling the rotating shaft 132 to drive the air deflector 13 to move towards the first ventilation opening 211 to reduce the first ventilation opening 211 and simultaneously increase the second ventilation opening 212; so that the rotation speed of the downstream fan 121 with a higher rotation speed becomes smaller or the rotation speed of the downstream fan 121 with a lower rotation speed becomes larger, improving the adjustment efficiency.

[0098] Correspondingly, if the downstream fan 121 with a higher rotation speed is closer to the second ventilation opening 212, then controlling the rotating shaft to drive the air deflector 13 to move towards the second ventilation opening 212 to reduce the second ventilation opening 212 and simultaneously increase the first ventilation opening 211; also achieving the purpose of rapid adjustment. Then, re-determine the rotation speed difference between any two downstream fans 121 until the rotation speed difference between any two downstream fans 121 is not greater than the second threshold; then enter the low-amplitude adjustment step.

[0099] Further, the low-amplitude adjustment step includes: controlling the driving assembly to adjust the two ends of the air deflector 13 to respectively adjust the sizes of the first ventilation opening 211 and the second ventilation opening 212 until the rotation speeds of all downstream fans 121 are the same. At this time, it is considered that the air supply on the air outlet side of the air duct 20 is relatively uniform.

[0100] Based on any of the above adjustment steps, as Figure 10 shown, the control method further includes: after the rotation speeds of all downstream fans 121 are the same, controlling the odor detection device to detect the air volume at the air outlet of the air duct 20 and obtaining an air volume detection value, and comparing it with a preset air volume value, so that the air volume entering the odor detection device meets the requirements of the test, to improve the detection accuracy.

[0101] Specifically, if the air volume detection value is greater than the first preset air volume value, then controlling the fan 40 to reduce the air volume; if the air volume detection value is less than the second preset air volume value, then controlling the fan 40 to increase the air volume; if the air volume detection value is between the first preset air volume value and the second preset air volume value, then controlling the odor detection device to start detecting, where the first preset air volume value is greater than the second preset air volume value.

[0102] Of course, the step of controlling the odor detection device to detect the air volume at the air outlet of the air duct 20 can also directly detect the air volume at the air outlet after obtaining the rotation speeds of the downstream fans 121, and then adjust the uniformity at the air outlet of the air duct 20 after the air volume at the outlet meets the requirements.

[0103] While controlling the blower 40 to reduce the air volume or controlling the blower 40 to increase the air volume, wait for the second preset duration to enable the downstream fan 121 to be in a stable rotating state, and then obtain the rotation speed of the downstream fan 121 and determine whether the rotation speeds of any two of the downstream fans 121 are the same, and then enter the next process.

[0104] In summary, the air volume adjusting device 10 of the present invention adjusts the distance from the edge of the air volume adjusting plate 13 to the inner wall of the air duct 20 according to the rotation speeds of the upstream fan 111 and the downstream fan 121 through the control module, so as to adjust the uniformity of the air outlet at the downstream of the air duct 20. Consequently, the air entering the storage room is relatively uniform, improving the quality of item preservation and thus enhancing the user experience.

[0105] It should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments understandable to those skilled in the art.

[0106] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and are not used to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An air regulating device, which is used in an air duct, is characterized in that The air regulating device includes: An upstream wind measurement component, comprising at least one upstream fan and an upstream sensor for detecting the rotation speed of the upstream fan; A downstream wind measurement assembly, comprising at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fans; An air regulating plate, located between the upstream wind measuring component and the downstream wind measuring component; A control module, comprising a control unit and a driving component connected to the control unit in communication, wherein the driving component is fixed to the air regulating plate, and the downstream sensor and the upstream sensor are both connected to the control unit in communication; Wherein, the control unit controls the driving component to adjust the distance from the edge of the air regulating plate to the inner wall of the air duct according to the signals of the downstream sensor and the upstream sensor.

2. The air regulating device according to claim 1, wherein At least the end portion of the air regulating plate is made of elastic material, and the driving assembly is fixed to the end portion of the air regulating plate to adjust the distance from the edge to the center of the air regulating plate.

3. The air regulating device according to claim 1, characterized in that, The air regulating plate includes a rotating shaft and an air plate body rotatably connected to the rotating shaft. The rotating shaft is used to be fixed on the inner wall of the air duct. The driving component is fixed to the air plate body to adjust the rotation angle of the air regulating plate relative to the rotating shaft.

4. The air regulating device according to claim 1, characterized in that, The air regulating plate comprises a rotating shaft and an air plate body rotatably connected to the rotating shaft, and the rotating shaft is used to be slidably connected to the inner wall of the air duct; The driving assembly is fixed to the rotating shaft, and the driving assembly adjusts the rotating shaft to drive the wind plate body to move radially along the air duct to adjust the distance from the edge of the wind plate body to the inner wall of the air duct; Alternatively, the driving assembly is fixed to the rotating shaft and the wind plate body respectively, and the driving assembly adjusts the rotating shaft to drive the wind plate body to move radially along the air duct and simultaneously adjusts the rotation of the wind plate body to adjust the distance from the edge of the wind plate body to the inner wall of the air duct.

5. The air regulating device according to claim 1, characterized in that, The air regulating plate comprises a rotating shaft, a first air plate and a second air plate which are respectively rotatably connected to the rotating shaft, and the driving assembly is respectively fixed to the first air plate and the second air plate.

6. The air regulating device according to claim 1, characterized in that, The air regulating plate also includes an air plate body, a first air guide plate and a second air guide plate located at both ends of the air plate body, the first air guide plate and the second air guide plate are arranged to be inclined in the opposite direction relative to the extension direction of the air plate body, and the first air guide plate and the second air guide plate are both arc-shaped.

7. The air regulating device according to any one of claims 1 to 6, characterized in that The driving assembly comprises a pair of elastic connecting members respectively located at both sides of the center of the air regulating plate along its extending direction, and a first adjusting structure and a second adjusting structure respectively connected to the ends of the elastic connecting members.

8. The air regulating device according to claim 7, characterized in that, The first adjustment structure and the second adjustment structure both include a limit plate fixed to the elastic connecting member, and the limit plate is in communication connection with the control unit.

9. The air regulating device according to claim 8, characterized in that, The first adjustment structure and / or the second adjustment structure further includes a buffer structure connected to a side of the limiting plate away from the elastic connecting member, and the buffer structure is deformed after receiving an external force from the limiting plate.

10. The air regulating device according to claim 7, characterized in that, The number of the upstream fans is the same as the number of the downstream fans. The upstream fans and the downstream fans are both arranged along the radial direction of the air duct and correspond to the air vents formed by the edge of the air regulating plate and the inner wall of the air duct.

11. The air regulating device according to claim 10, characterized in that, The radius of the upstream fan is not less than the radius of the downstream fan.

12. A refrigeration device, characterized in that, It includes an air duct and an air flow regulating device as described in any one of claims 1 to 11 provided in the air duct. The air duct includes a supply air duct and a return air duct, and the air flow regulating device is located in the supply air duct and / or the return air duct.

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