Refrigeration equipment

Abstract

The invention provides refrigeration equipment which comprises an air duct, a smell detection device located in the air duct or at an air outlet of the air duct and an air adjusting device located on the upstream of the smell detection device to adjust the speed of air entering the smell detection device, and the air adjusting device comprises an upstream air measuring assembly, a downstream air measuring assembly, an air adjusting plate and a control module. The upstream wind measuring assembly comprises an upstream fan and an upstream sensor; the downstream wind measurement assembly comprises a downstream fan and a downstream sensor; 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 air adjusting plate according to signals of the downstream sensor and the upstream sensor so as to cover or open the air duct to control the speed of air entering the downstream, so that the downstream air speed of the air duct is uniform, and the detection accuracy of the gas detection device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly to a refrigeration equipment. Background Art

[0002] Due to the increasing diversification of items stored in the storage room of current refrigeration equipment, the smell emitted by some items is relatively small and not easily smelled by users or covered by other smells, making it difficult for users to detect, which affects the user's judgment of the freshness of the items. Some manufacturers add odor detection devices in the refrigeration equipment to detect the odor in the storage room. However, for air-cooled refrigeration equipment, the uneven wind speed in the storage room will affect the detection accuracy of the odor detection device, and it is still impossible to effectively judge the freshness state of the items in a timely manner, thus affecting the user experience. Summary of the Invention

[0003] The present invention provides a refrigeration equipment to solve one of the above problems.

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

[0005] The present invention provides a refrigeration equipment, which includes:

[0006] Air duct,

[0007] An odor detection device, located inside the air duct or at the air outlet of the air duct;

[0008] An air regulating device, located upstream of the odor detection device to regulate the wind speed entering the odor detection device. The air regulating device includes an upstream wind measurement component, a downstream wind measurement component, a wind regulating plate located between the upstream wind measurement component and the downstream wind measurement component, and a control module communicatively connected to the wind regulating plate. The upstream wind measurement component includes at least one upstream fan and an upstream sensor for detecting the rotation speed of the upstream fan; the downstream wind measurement component includes at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fans; the control module includes a control unit and a driving component communicatively connected to the control unit. The driving component is fixed to the wind regulating plate. Both the downstream sensor and the upstream sensor are communicatively connected to the control unit. The control unit controls the driving component to adjust the wind regulating plate to cover or open the air duct to control the wind speed entering downstream.

[0009] Further, the wind regulating plate is provided with a window and a sub-wind regulating plate for opening or closing at least part of the window. The driving component is fixedly connected to the sub-wind regulating plate. The control unit controls the driving component to adjust the sub-wind regulating plate to block the size of the window.

[0010] Further, the air regulating plate includes a rotating shaft and a main air plate rotatably connected to the rotating shaft. The driving assembly is fixedly connected to the main air plate, and the control unit controls the distance between the edge of the main air plate and the inner wall of the air duct to open or cover the air duct.

[0011] Further, at least the end portions of the main air plate are made of an elastic material, and the driving assembly is fixed to the end portions of the main air plate to adjust the distance between the edge of the main air plate and the inner wall of the air duct.

[0012] Further, the rotating shaft is fixed to the inner wall of the air duct, and the driving assembly is fixed to the main air plate to adjust the rotation of the air regulating plate relative to the rotating shaft.

[0013] Further, the rotating shaft is slidably connected to the inner wall of the air duct, and the driving assembly is also fixedly connected to the rotating shaft.

[0014] The driving assembly adjusts the rotating shaft to drive the main air plate to move to adjust the distance between the edge of the main air plate and the inner wall of the air duct.

[0015] And / or, the driving assembly controls the main air plate to rotate relative to the rotating shaft to adjust the distance between the edge of the main air plate and the inner wall of the air duct.

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

[0017] Further, the main air plate further includes a first air guiding plate and a second air guiding plate located at both ends of the main air plate. The first air guiding plate and the second air guiding plate are inclined in the opposite direction to the extending direction of the main air plate, and both the first air guiding plate and the second air guiding plate are arc-shaped.

[0018] Further, 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 radially along the air duct, and both correspond to the ventilation openings formed by the edge of the air regulating plate and the inner wall of the air duct.

[0019] Further, the air duct includes a supply air duct and a return air duct, and the air regulating device is arranged in the supply air duct and / or the return air duct.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: In the refrigeration equipment of the present invention, through the combination of the odor detection device arranged in the air duct and the air regulating device upstream of the odor detection device, the air to be pre-entered into the odor detection device is uniformly adjusted, the detection accuracy of the odor detection device is improved, the odor in the storage room can be accurately provided for the user, and the user can effectively judge the freshness state of the items in time, thereby improving the user experience. Brief Description of the Drawings

[0021] Figure 1 FIG. is a partial structural schematic diagram of an embodiment of the refrigeration device of the present invention.

[0022] Figure 2 is Figure 1 A three-dimensional structural schematic diagram when the air deflector of the air adjustment device at position A in FIG. covers the air duct.

[0023] Figure 3 is Figure 2 A three-dimensional structural diagram when the air deflector in FIG. opens the air duct.

[0024] Figure 4 is Figure 3 A three-dimensional structural schematic diagram of the cooperation between the air deflector and the drive assembly in FIG.

[0025] Figure 5 A three-dimensional structural diagram of the air deflector in another embodiment of the air adjustment device.

[0026] Figure 6 A three-dimensional structural schematic diagram of the air adjustment device in another embodiment of the air adjustment device.

[0027] Figure 7 is Figure 6 A three-dimensional structural diagram when the sub-air deflector in FIG. is in the open state.

[0028] Figure 8 is Figure 6 A three-dimensional structural schematic diagram when the sub-air deflector in another embodiment in FIG. is in the open state.

[0029] Figure 9 FIG. is a flowchart of an embodiment of the control method for the refrigeration device of the present invention.

[0030] Figure 10 FIG. is a flowchart of another embodiment of the control method for the refrigeration device of the present invention.

[0031] Figure 11 FIG. is a flowchart of the adjustment step in the control method for the refrigeration device of the present invention. Detailed Description of the Embodiments

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0033] 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 figure. This 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 conversely, the direction away from the ground is taken as the upper. Other descriptions of orientation are defined based on "upper" and "lower".

[0034] In the various figures of the present invention, for the convenience of illustration, the dimensions of certain 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.

[0035] The present invention provides a refrigeration device, such as Figures 1 to 8 as shown, wherein 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 2 and the inner wall of the rear of the inner container to supply 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 transport 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.

[0036] 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.

[0037] The refrigeration device further includes an odor detection device (not shown) provided 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 in the housing. An air inlet hole is provided on the housing, and the air inlet hole faces the air flow regulating device, so that the regulated 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 hole is located in the middle of the supply air duct in the radial direction to receive more representative gas.

[0038] The refrigeration device further includes an air flow regulating device 10 located upstream of the odor detection device to regulate the wind speed entering the odor detection device. The air flow regulating 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 enables the user to effectively judge the freshness state of the items in a timely manner, thereby enhancing the user experience.

[0039] In a specific embodiment, as Figures 1 to 3 shown, the air regulating 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 arranged 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 regulated by the air regulating device 10, thereby improving the accuracy of the odor detection device.

[0040] In another specific embodiment, a plurality of the air regulating devices 10 are provided and are respectively located in all the air supply ducts 21. Since the gases transported in all the air supply ducts 21 have been regulated by the air regulating device 10 and the gases in the storage room are considered to be in a uniform speed state, therefore, in this embodiment, the odor detection device can be located at any position in the storage room.

[0041] In another specific embodiment, the air regulating 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 regulated by the air regulating device 10, thereby improving the accuracy of the odor detection device.

[0042] In another specific embodiment, the air regulating device 10 is located in both the air supply duct 21 and the return air duct. The gas in the air path is evenly regulated twice by the air regulating 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, thereby improving the accuracy of the odor detection device.

[0043] The following takes the air regulating device 10 located in the air outlet duct 21 as an example for detailed description.

[0044] As Figure 2 、 Figure 3 and Figure 6 shown, the air regulating device 10 includes an upstream wind measuring component 11, a downstream wind measuring component 12, a wind regulating plate 13 located between the upstream wind measuring component 11 and the downstream wind measuring component 12, and a control module.

[0045] The upstream wind measuring component 11 includes at least one upstream fan 111 and an upstream sensor 112 for detecting the rotation speed of the upstream fan 111; all the upstream fans 111 have the same size and specification. The downstream wind measuring component 12 includes at least two downstream fans 121 and a downstream sensor 122 for detecting the rotation 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.

[0046] As Figure 2and Figure 3 As shown, the upstream fan 111 and the downstream fan 121 are both arranged along the radial direction of the air duct 20, and the arrangement dimensions of the upstream fan 111 and the downstream fan 121 can cover the radial space of the air duct 20 so that the wind passing through the air duct 20 is regulated by the downstream fan 121, that is, the arrangement dimensions of the upstream fan 111 and the downstream fan 121 are determined according to the radial dimensions of the air duct 21.

[0047] Preferably, the diameter of the upstream fan 111 is greater than the diameter of the downstream fan 121, and a larger amount of air is delivered to the downstream fan 121 through the upstream fan 111, so that the downstream fan 121 can quickly sense the air volume delivered from the upstream to the downstream of the air duct 20 and the change in air volume, thereby improving the working efficiency of the air regulating device.

[0048] In order to reduce the error of the upstream sensor 112 detecting the rotation speed of each upstream fan 111 , the upstream sensor 112 is located between two adjacent upstream fans 111 , and correspondingly, the downstream sensor 122 is located between two adjacent downstream fans 121 .

[0049] The control module includes a control unit and a driving component connected to the control unit in communication, wherein the control unit is connected to the downstream sensor 122 and the upstream sensor 112 to obtain the rotation speeds of the upstream fan 111 and the downstream fan 121 .

[0050] As a preferred embodiment of the present invention, the air regulating plate 13 includes a rotating shaft 132 and a wind plate body 131 fixedly connected or rotatably connected to the rotating shaft 132, wherein the wind plate body 131 has a covering state of covering the air duct 20 and a ventilation state of forming a vent with the inner wall of the air duct 20. In the ventilation state, the edge of the air regulating plate 13 forms a vent with the inner wall of the air duct 20, wherein one end forms a first vent 211 with the inner wall of the air duct 20, and the other end forms a second vent 212 with the inner wall of the air duct 20, and the upstream fan 111 and the downstream fan 121 are both arranged one-to-one with the vents.

[0051] like Figure 2 and Figure 5 As shown, the air regulating plate 13 also includes a first air guide plate 133 and a second air guide plate 134 located at both ends of the air plate body 131. The first air guide plate 133 and the second air guide plate 134 are arranged to be tilted in the opposite direction relative to the extension direction of the air plate body 131, that is, one of the first air guide plate 133 and the second air guide plate 134 is tilted toward the upstream wind measuring component 11, and the other is tilted toward the downstream wind measuring component 12. In the ventilation state, the first air guide plate 133 and the second air guide plate 134 improve the efficiency of the airflow passing through the vent.

[0052] Preferably, both the first air deflector 133 and the second air deflector 134 are arc-shaped. When the air flow passes through the ventilation opening, the arc-shaped first air deflector 133 and the second air deflector 134 can buffer the wind speed entering the downstream air velocity measuring component 12, avoiding large changes in the rotational speed of the downstream fan 121.

[0053] 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 provided on the air plate main body 131, and the window 135 is arranged in one-to-one correspondence with the downstream fan 121, facilitating the control of the wind speed downstream of the air duct 20 by adjusting the size of the window 135.

[0054] The driving component is fixedly connected to the air plate main body 131 and / or the sub-air regulating plate 136 and / or the rotating shaft 132. The control unit controls the driving component to drive the air plate main body 131 and / or the sub-air regulating plate 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 regulating plate 13 and the inner wall of the air duct 20 or the size of the window 135 blocked according to the rotational 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 rotational speeds of all the downstream fans 121, it is determined whether the wind speeds downstream of the air duct 20 are the same, making the gas entering the storage room more uniform and improving the preservation quality of the items in the storage room.

[0055] As another preferred embodiment of the present invention, the driving component is fixedly connected to the air plate main body 131, directly driving the air plate main body 131 to move or deform.

[0056] In this embodiment, as Figures 2 to 4 and Figure 6 shown, the driving component includes elastic connectors 143 respectively fixed on both sides of the center of the air regulating plate 13 along its extending direction, and a first adjusting structure 141 and a second adjusting structure 14 respectively fixed to the other ends of the elastic connectors 143. That is, the elastic connectors 143 are fixed on the air plate main body 131, and the elastic connectors 143 can buffer the changes of the air plate 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 downstream of the air duct 20.

[0057] Specifically, the first adjustment structure 141 and the second adjustment structure 142 are respectively located on both sides of the rotating shaft 132 and close to the end of the wind plate main body 131 to reduce the force applied by the first adjustment structure 141 and the second adjustment structure 142 on the wind plate main body 131. The control unit controls the first adjustment structure 141 and the second adjustment structure 142 to apply different forces, thereby driving the elastic connecting member 143 to pull the wind plate main body 131 to move different distances or deform different sizes, so that the size of the vents formed by the edge of the wind plate main body 131 and the inner wall of the air duct 20 is different. By adjusting the size of the different vents, the air volume entering the downstream of the air duct 20 can be controlled, thereby realizing the adjustment of the wind speed downstream of the air duct 20.

[0058] Preferably, the first adjustment structure 141 is located on a side of the wind plate body 131 facing the upstream wind measuring component 11 , and the second adjustment structure 142 is located on a side of the wind plate body 131 facing the downstream wind measuring component 12 .

[0059] Specifically, the first adjustment structure 141 and the second adjustment structure 142 both include a limit plate 141 fixed to the elastic connector 143 , and the limit plate 1411 is communicatively connected to the control unit, that is, the control unit applies a push or pull force to the limit plate 141 .

[0060] Preferably, the first adjustment structure 141 and / or the second adjustment structure 142 also includes a buffer structure 1412 connected to the side of the limiting plate 1411 away from the elastic connecting member 143. The buffer structure 1412 is deformed after being subjected to the external force of the limiting plate 1411. The setting of the buffer structure 1412 can buffer the amplitude of the change of the wind plate body 131, thereby making the vent change slowly, making the wind speed downstream of the air duct 20 change slowly, and improving the efficiency of the adjustment downstream of the air duct 20.

[0061] It is understandable that the buffer structure 1412 may be provided only on the first adjustment structure 141 , may be provided only on the second adjustment structure 142 , or may be provided on both the first adjustment structure 141 and the second adjustment structure 142 .

[0062] In this embodiment, the buffer structure 1412 is composed of a plurality of parallelogram linkage structures, and the deformation of the buffer structure 1412 is adjusted by the hinge relationship at the corners of the parallelogram linkage structure. Of course, the buffer structure 1412 may also be a structure made of other materials.

[0063] Based on the structure of the above driving component, in a specific embodiment, at least the end portions of the air regulating plate 13 are made of an elastic material, that is, at least the end portions of the air plate main body 131 are made of an elastic material. The air plate main body 131 covers the air duct 20 in the initial state. When the end portions of the air plate main body 131 are deformed, a first ventilation opening 211 is formed between the first end of the air plate 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 plate main body 131 and the inner wall of the air duct 20.

[0064] In this embodiment, the driving component is fixed to the end portion of the air plate main body 131 to adjust the distance from the edge to the center of the air plate main body 131. That is, the first adjusting structure 141 and the second adjusting structure 142 are respectively fixed to the end portion of the air plate main body 131. During the process of applying external forces to the end portion of the air plate main body 31 by the first adjusting structure 141 and the second adjusting structure 142, the end portion of the air plate main body 131 is deformed to form the first ventilation opening 211 and the second ventilation opening 212 with the inner wall of the air duct 20, and external forces of different magnitudes are specifically applied to the end portion of the air plate main body 31. By adjusting the magnitude of the deformation of the end portion of the air plate 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.

[0065] 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 between 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 rotation of the air plate main body 131 relative to the rotating shaft 132.

[0066] In another specific embodiment, as Figure 5As shown in the figure, the air deflector body 131 includes a first air deflector 1311 and a second air deflector 1312 located on both sides of the rotating shaft 132. The first air deflector 1311 and the second air deflector 1312 are respectively rotatably connected to the rotating shaft 13. When the first air deflector 1311 and the second air deflector 1312 are coplanar, they cover the air duct. An end of the first air deflector 1311 and the inner wall of the air duct 20 form a first ventilation opening 211, and an end of the second air deflector 1312 and the inner wall of the air duct 20 form a second ventilation opening 212. The first adjustment structure 141 is fixed to the first air deflector 1311 and drives the first air deflector 1311 to rotate relative to the rotating shaft 132 to adjust the size of the ventilation opening formed by the distance between the edge of the first air deflector 1311 and the inner wall of the air duct 20. The second adjustment structure 142 is fixed to the second air deflector 1312 and drives the second air deflector 1312 to rotate relative to the rotating shaft 132 to adjust the size of the ventilation opening formed by the distance between the second air deflector 1312 and the inner wall of the air duct 0, so as to meet the adjustment of various modes of the air deflector 13.

[0067] As another preferred embodiment of the present invention, the driving assembly is fixedly connected to the sub-air deflector 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.

[0068] In a specific embodiment, as Figure 6 and Figure 7 shown, the sub-air deflector 136 is rotatably connected to the air deflector 13. In this embodiment, the air deflector 13 further includes a sub-rotating shaft (not shown) for rotatably connecting the sub-air deflector 136. The driving assembly controls the angle of the sub-air deflector 136 rotating relative to the sub-rotating shaft to adjust the size of the window 135 covered by the sub-air deflector 136. 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 deflector 136 can be realized, it is within the protection scope of this embodiment.

[0069] In another specific embodiment, as Figure 8 shown, the sub-air deflector 136 is slidably connected to the air deflector 13. The air deflector 13 further includes a slideway 137 provided around the window 135 and a stop portion (not shown) located at the end of the slideway 137. The sub-air deflector 136 is located in the slideway 137. The driving assembly drives the sub-air deflector 136 to move along the slideway 137 to open or close at least part of the window 135. The position and angle of the slideway 137 relative to the window 135 are not limited in this embodiment, as long as the rotation of the sub-air deflector 136 can be realized, it is within the protection scope of this embodiment.

[0070] Preferably, the slideway 137 extends along the radial direction of the air duct 20 to adjust the size of the adjustment window 135 along the radial direction of the air duct 20, facilitating air supply to the downstream of the air duct 20 and achieving the purpose of quickly adjusting the wind speed and uniformity.

[0071] 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 respectively adjust the distance from the edge of the air regulating plate 13 to the inner wall of the air duct as needed. Meanwhile, the sub-air regulating plate 136 can be selectively controlled to adjust the size of the covered window 135. 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] 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. The air regulating plate main body 131 is driven to move or rotate by driving the rotating shaft 132.

[0073] 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 regulating plate main body 132 to rotate, and then 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 regulating plate main body 132 is changed, and thus the size of the ventilation opening is changed.

[0074] 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 regulating plate main body 131 to move along the radial direction of the air duct, and then changing the distance between the edge of the air regulating plate main body 131 and the inner wall of the air duct 20.

[0075] 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. The driving assembly adjusts the rotating shaft 132 to drive the air regulating plate main body 131 to move to adjust the distance between the edge of the air regulating 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 regulating plate main body 131 to rotate to adjust the distance between the edge of the air regulating plate main body 131 and the inner wall of the air duct 20, realizing diversified adjustment of the air regulating plate 13.

[0076] As another preferred embodiment of the present invention, the driving assembly is respectively fixed to the rotating shaft 132 and the air deflector main body 131. In this embodiment, the rotating shaft 132 is slidably and rotatably connected to the inner wall of the air duct 20, and the driving assembly adjusts the rotating shaft 132 to drive the air deflector main body 131 to move so as to adjust the distance between the edge of the air deflector main body 131 and the inner wall of the air duct 20; and / or, the driving assembly controls the air deflector main body 131 to rotate relative to the rotating shaft 132 so as to adjust the distance between the edge of the air deflector main body 131 and the inner wall of the air duct 20, thereby realizing diversified adjustment of the air deflector 13.

[0077] It can be understood that in the above embodiments, the mutual relationship and adjustment method between the driving assembly and the air deflector 13 can be arbitrarily combined, and diversified adjustment of the air deflector 13 can be realized.

[0078] 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.

[0079] 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 deflector device 10 is controlled to start working.

[0080] 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, controlling the air deflector 13 to open the air duct 20 to form a ventilation opening; obtaining the rotation speeds of several 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 deflector 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 size of the current ventilation opening to continue supplying air.

[0081] 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 uniform wind speed can be conveyed to the storage room to meet the storage needs of users or the detection requirements of the odor detection device, thereby improving the user experience.

[0082] Specifically, after obtaining the rotational speed of the upstream fan 111 through the upstream sensor 112 as described above, compare the rotational speed of the upstream fan 111 with the first threshold. If the rotational speed of the upstream fan 111 is greater than the first threshold, then control the air deflector 13 to open the air duct to form a ventilation opening, and send air downstream through the ventilation opening to the air duct 20, thereby driving the downstream fan 121 to rotate.

[0083] If the rotational speed of the upstream fan 111 is not greater than the first threshold, wait for a preset duration continuously. If the rotational 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 rotational speed of the upstream fan 111.

[0084] Preferably, after the downstream fan 121 rotates and lasts for the first duration, that is, wait until the rotating downstream fan 121 is in a stable state, and then obtain the rotational speeds of several downstream fans 121, so that the detection result of the downstream sensor 122 is more representative and accurate.

[0085] As Figure 3 shown, the adjustment step includes: further determining whether the rotational 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 deflector 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.

[0086] In the embodiment where at least the end portion of the air deflector 13 is made of an elastic material, the high-amplitude adjustment step includes determining whether the downstream fan 121 with a higher rotational 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 drive assembly to drive the first end to deform to make the first ventilation opening 211 smaller and / or control the drive assembly to drive the second end to deform in the opposite direction to make the second ventilation opening 212 larger, so that the rotational speed of the downstream fan 121 with a higher rotational speed becomes smaller and / or the rotational speed of the downstream fan 121 with a lower rotational speed becomes larger, and finally the rotational speeds of all downstream fans 121 are the same.

[0087] Correspondingly, if the downstream fan 121 with a higher rotational speed is closer to the second ventilation opening 212, then control the drive assembly to drive the second end to deform to make the second ventilation opening 212 smaller and / or control the drive assembly to drive the first end to deform in the opposite direction to make the first ventilation opening 211 larger, and the wind speed downstream of the air duct 20 can also be adjusted.

[0088] Then re-determine 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, then 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.

[0089] In the embodiment where the first air deflector 1311 and the second air deflector 1312 are respectively rotatably connected to the rotating shaft 132, the high-amplitude adjustment step includes: determining whether the downstream fan with a higher rotational 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, controlling the drive assembly to drive the first air deflector 1311 to rotate relative to the rotating shaft 13 to reduce the first ventilation opening 211, and / or controlling the drive assembly to drive the second air deflector 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.

[0090] Correspondingly, if the downstream fan 121 with a higher rotational speed is closer to the second ventilation opening 212, controlling the drive assembly to drive the second air deflector 1312 to rotate relative to the rotating shaft 132 to reduce the second ventilation opening 212, and / or controlling the drive assembly to drive the first air deflector 1311 to rotate relative to the rotating shaft 132 to increase the first ventilation opening 211; similarly, the rotational speed of the downstream fan 121 can be adjusted.

[0091] Then, re-determine 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.

[0092] In the embodiment where the air deflector 13 is provided with a window 135, the high-amplitude adjustment step includes: determining the side of the window 135 that the downstream fan 121 with a higher rotational speed is closer to; then controlling the sub-air deflector 136 to rotate or move relative to the air deflector 13 to adjust the size of the window 135 covered; re-determine 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.

[0093] 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 rotational 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, 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 at the same time 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] Correspondingly, if the downstream fan 121 with a higher rotational speed is close to the second ventilation opening 212, then the control shaft drives the air deflection plate 13 to move towards the second ventilation opening 212 to reduce the second ventilation opening 212 and simultaneously increase the first ventilation opening 211; the purpose of rapid adjustment is also achieved. Then, the rotational speed difference between any two downstream fans 121 is re-determined until the rotational speed difference between any two downstream fans 121 is not greater than the second threshold; then, the low-amplitude adjustment step is entered.

[0095] Furthermore, the low-amplitude adjustment step includes: controlling the driving assembly to respectively adjust the sizes of the two ends of the air deflection plate 13 to adjust the sizes of the first ventilation opening 211 and the second ventilation opening 212 until the rotational speeds of all downstream fans 121 are the same. At this time, it is determined that the air supply on the air outlet side of the air duct 20 is relatively uniform.

[0096] Based on any of the above adjustment steps, as Figure 10 shown, the control method further includes: after the rotational 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 to make the air volume entering the odor detection device meet the requirements of the test, so as to improve the detection accuracy.

[0097] Specifically, if the air volume detection value is greater than the first preset air volume value, then control the fan 40 to reduce the air volume; if the air volume detection value is less than the second preset air volume value, then control 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 control the odor detection device to start detecting, where the first preset air volume value is greater than the second preset air volume value.

[0098] 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 rotational speed of the downstream fan 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.

[0099] When controlling the fan 40 to reduce the air volume or controlling the fan 40 to increase the air volume, wait for the second preset duration to make the downstream fan 121 in a stable rotational state, and then obtain the rotational speed of the downstream fan 121 and determine whether the rotational speeds of any two of the downstream fans 121 are the same, and then enter the next process.

[0100] In summary, the refrigeration device of the present invention combines the odor detection device provided in the air duct 20 with the air deflection device 10 upstream of the odor detection device, adjusts the uniformity of the air 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.

[0101] It should be understood that although this specification is described by way of examples, not every example only contains 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 example can also be appropriately combined to form other examples that can be understood by those skilled in the art.

[0102] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and are not intended 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. A refrigeration device, characterized in that, Comprising: Air duct An odor detection device located inside the air duct or at the air outlet of the air duct; An air regulating device located upstream of the odor detection device to regulate the wind speed entering the odor detection device. The air regulating device includes an upstream wind measurement component, a downstream wind measurement component, a wind regulating plate located between the upstream wind measurement component and the downstream wind measurement component, and a control module communicatively connected to the wind regulating plate. The upstream wind measurement component includes at least one upstream fan and an upstream sensor for detecting the rotation speed of the upstream fan; the downstream wind measurement component includes at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fan; the control module includes a control unit and a driving component communicatively connected to the control unit. The driving component is fixed to the wind regulating plate. Both the downstream sensor and the upstream sensor are communicatively connected to the control unit. The control unit controls the driving component to adjust the wind regulating plate to cover or open the air duct to control the wind speed entering downstream.

2. The refrigeration device according to claim 1, characterized in that, The wind regulating plate is provided with a window and a sub-wind regulating plate for opening or closing at least part of the window. The driving component is fixedly connected to the sub-wind regulating plate, and the control unit controls the driving component to adjust the sub-wind regulating plate to block the size of the window.

3. The refrigeration device according to claim 1, wherein, The wind regulating plate includes a rotating shaft and a wind plate body rotatably connected to the rotating shaft. The driving component is fixedly connected to the wind plate body, and the control unit controls the distance from the edge of the wind plate body to the inner wall of the air duct to open or cover the air duct.

4. The refrigeration device according to claim 3, wherein, At least the end part of the wind plate body is made of an elastic material, and the driving component is fixed to the end part 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 refrigeration device according to claim 3, characterized in that, The rotating shaft is fixed to the inner wall of the air duct, and the driving component is fixed to the wind plate body to adjust the rotation of the wind regulating plate relative to the rotating shaft.

6. The refrigeration device according to claim 3, characterized in that, The rotating shaft is slidably connected to the inner wall of the air duct, and the driving component is also fixedly connected to the rotating shaft. The driving component adjusts the rotating shaft to drive the wind plate body to move to adjust the distance from the edge of the wind plate body to the inner wall of the air duct; And / or, the driving component controls the wind plate body to rotate relative to the rotating shaft to adjust the distance from the edge of the wind plate body to the inner wall of the air duct.

7. The refrigeration device according to claim 3, characterized in that, The wind regulating plate includes a rotating shaft, a first wind plate and a second wind plate respectively rotatably connected to the rotating shaft, and the driving component is fixed to the first wind plate and the second wind plate respectively.

8. The refrigeration device according to claim 3, characterized in that, The wind plate body further includes a first air guiding plate and a second air guiding plate located at both ends of the wind plate body. The first air guiding plate and the second air guiding plate are inclined in the opposite direction to the extending direction of the wind plate body, and both the first air guiding plate and the second air guiding plate are arc-shaped.

9. The refrigeration device according to any one of claims 1 to 8, 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 radially along the air duct and correspond to the ventilation openings formed by the edge of the wind regulating plate and the inner wall of the air duct.

10. The refrigeration device according to claim 9, characterized in that, The air duct includes a supply air duct and a return air duct, and the air regulating device is arranged in the supply air duct and / or the return air duct.

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