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 and used for adjusting the speed of air entering the smell detection device. The air adjusting device comprises a downstream air measuring assembly, at least one air plate assembly movably connected to the inner wall of the air duct, and a control unit for controlling the air plate assembly to rotate or move so as to form a ventilation opening with the inner wall of the air duct, and the downstream air measuring assembly comprises a downstream fan and a downstream sensor; the air plate assembly comprises an air adjusting plate, at least one window located in the air adjusting plate, and a sub air plate rotationally connected to the air adjusting plate to open or close the window. The control unit controls the air adjusting plate to rotate or move according to a signal of the downstream sensor so as to adjust the uniformity of downstream gas of the air channel, and the detection precision of the smell detection device is improved.

Description

Technical Field

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

[0002] Since the items stored in the storage room of the current refrigeration equipment are becoming more and more diverse, the smell emitted by some items is 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 an odor detection device 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 still cannot effectively judge the freshness state of the items in time, thereby affecting the user experience.

[0003] In view of this, it is necessary to design a new refrigeration equipment to solve one of the above problems. Summary of the Invention

[0004] The present invention provides a refrigeration equipment to solve one of the above problems.

[0005] To achieve the above object, the technical solution provided by the present invention is as follows:

[0006] The present invention provides a refrigeration equipment, which includes:

[0007] An air duct,

[0008] An odor detection device, located inside the air duct or at the air outlet of the air duct;

[0009] An air regulating device, which is located upstream of the odor detection device to regulate the wind speed entering the odor detection device. The air regulating device includes a downstream wind measurement component, at least one wind plate component movably connected to the inner wall of the air duct, and a control unit for controlling the rotation or movement of the wind plate component to form a ventilation opening with the inner wall of the air duct. 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 wind plate component includes an air regulating plate, at least one window located on the air regulating plate, and a sub-wind plate rotatably connected to the air regulating plate to open or close the window; the control unit is communicatively connected to the downstream sensor and controls the rotation or movement of the air regulating plate.

[0010] Further, a pair of contact parts are provided at intervals at the lower end of the air regulating plate, and a track for the contact parts to move is provided on the inner wall of the air duct. The control unit is communicatively connected to the contact parts to control the contact parts to move along the track, thereby driving the rotation of the wind plate component.

[0011] Further, a pair of contact portions are provided at intervals at the lower end of the air regulating plate, a track for the contact portions to move is provided on the inner wall of the air duct, a signal connection unit is provided in the track, and the control unit is communicatively connected to the signal connection unit to drive the signal connection unit to drive the contact portions to move along the track.

[0012] Further, the track is arc-shaped, the control unit controls the signal connection unit and drives the contact portion to move along the track, thereby driving the air regulating plate to rotate.

[0013] Further, a plurality of air plate assemblies are provided. When the plurality of air plate assemblies are coplanar, the air duct is closed. The track linearly extends along the axial or radial direction of the air duct. The control unit selectively controls the signal connection unit and drives the contact portion to move along the track, thereby driving the air plate assembly to move along the radial or axial direction of the air duct.

[0014] Further, the air plate assembly further includes a fixed shaft for rotatably connecting the sub-air plate, and the fixed shaft is fixed at the middle in the up-down direction of the window.

[0015] Further, the air plate assembly further includes an auxiliary window spaced from the window, and an auxiliary sub-air plate cooperating with the auxiliary window. The control unit is communicatively connected to the auxiliary sub-air plate to control and adjust the rotation or movement of the auxiliary sub-air plate, thereby adjusting the size of covering the auxiliary window.

[0016] Further, the size of the downstream air measurement assembly in the arrangement direction of the air plate assembly is not less than half of the total length of the air plate assembly.

[0017] Further, a plurality of the downstream fans enclose a wind gathering area communicating with the air inlet hole of the odor detection device, and the downstream fans are arranged in a horn shape or a V shape.

[0018] Further, the air duct includes a supply air duct and a return air duct, and the air regulating device is located in the supply air duct and / or the return air duct. Compared with the prior art, the beneficial effects of the present invention are as follows: By combining the odor detection device provided in the air duct with the air regulating device upstream of the odor detection device, the air to be pre-entered into the odor detection device is uniformly regulated, 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

[0019] Figure 1 It is a partial structural schematic diagram of an embodiment of the refrigeration equipment of the present invention.

[0020] Figure 2 is Figure 1Exploded view of each component in the embodiment.

[0021] Figure 3 is Figure 2 Cross-sectional view of the air mixing device along the axial direction of the cylinder body in

[0022] Figure 4 is Figure 3 Side view of the air mixing device in

[0023] Figure 5 is Figure 4 Air flow diagram of the air mixing device in

[0024] Figure 6 is Figure 2 Schematic structural diagram of another embodiment of the air duct in

[0025] Figure 7 Schematic structural diagram of the air regulating device in cooperation with the air duct.

[0026] Figure 8 Schematic structural diagram of an embodiment of the air regulating device in the state of closing the air duct.

[0027] Figure 9 Schematic structural diagram of the air regulating device in the state of opening the air duct.

[0028] Figure 10 Schematic structural diagram of another embodiment of the air regulating device in the state of opening the air duct.

[0029] Figure 11 Schematic structural diagram of the air regulating device in the state of opening the air duct.

[0030] Figure 12 is Figure 11 Enlarged view of the local structure at A in

[0031] Figure 13 Flow chart of an embodiment of the control method of the present invention.

[0032] Figure 14 Flow chart of another embodiment of the control method of the present invention.

[0033] Figure 15 Flow chart of the adjustment step of the present invention. Detailed implementation manners

[0034] 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 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 of 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.

[0035] 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 cannot be understood 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 facing 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".

[0036] In the various drawings of the present invention, for the convenience of illustration, the sizes 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.

[0037] The present invention provides a refrigeration device, such as Figures 1 to 12 shown, the refrigeration device includes an air duct 20, an odor detection device 30 located inside the air duct 20 or on the air outlet side of the air duct 20, and the air regulating device 10 is located upstream of the air duct 20. The air duct 20 includes a supply air duct and a return air duct. The supply air duct is formed between the air duct cover plate and the inner wall of the rear of the inner tank to supply cooled air to the storage room. The return air duct is located at the lower part of the storage room to connect the storage room and the refrigeration room. The air that has undergone heat exchange in the storage room is transported to the refrigeration room through the return air duct to be cooled again. Since the air circulates between the storage room and the refrigeration room, the odor of the gas passing through the gas path is considered to represent the odor in the storage room.

[0038] As Figure 2 and Figure 6 shown, a wind distribution structure 21 is provided inside the air duct 20. The wind distribution structure 21 divides the air duct 20 into different areas, so that the odor detection device 30 can selectively detect the odor of the gas in a specific area. It can be understood that the wind distribution structure 21 can be provided in the supply air duct and / or the return air duct. Hereinafter, the case where the wind distribution structure 21 is provided in the return air duct will be described in detail as an example.

[0039] As a preferred embodiment of the present invention, Figure 2As shown, the air distribution structure 21 divides the air duct 20 into an intermediate air duct 22 and side air ducts 23 located on the sides of the intermediate air duct 22. The air inlet 31 of the odor detection device 30 corresponds to the intermediate air duct 22. By providing the intermediate air duct 22 and the odor detection device 30 correspondingly located downstream of the intermediate air duct 22 in the refrigeration equipment, the gas is disturbed and mixed by the fan and then transported to the air duct 20. The gas at the edge of the air duct 20 is transported from the side air ducts 23 to the downstream of the air duct 20, while the odor detection device 30 only detects the relatively uniformly mixed gas transported through the intermediate air duct 22, so that the test result of the odor detection device 30 can truly reflect the odor of the gas in the storage room, enabling the user to dispose of it in a timely manner and improving the user experience.

[0040] Further, the intermediate air duct 22 includes a central air duct 221, an upper air duct 222 located above the central air duct 221, and a lower air duct 223 located below the central air duct 221. The odor detection device 30 is located on the air outlet side of the central air duct 221. The central air duct 221 is located at the exact center of the air duct 20. The setting of the central air duct 221 can transport the gas near the upper or lower side of the air duct 20 through the upper air duct 222 and the lower air duct 223 respectively, and the central air duct 221 only transports the gas at the middle position of the air duct 20, so that the odor detection device 30 only detects the gas at the center position of the air duct 20, avoiding the influence of the gas at the edge part in contact with the inner wall of the air duct 20 on the detection result.

[0041] Specifically, the air distribution structure 21 includes a pair of partition plates 211 extending to the inner wall of the air duct 20. The intermediate air duct 22 is formed between the pair of partition plates 211. The air distribution structure 21 further includes a pair of connecting plates 212 connected between the pair of partition plates 211. The connecting plates 212 are respectively located on both sides of the vertical center of the partition plates 211. The central air duct 221 is formed between the pair of partition plates 211 and the pair of connecting plates 212.

[0042] In this embodiment, the partition plates 211 extend in the up and down direction, and the connecting plates 212 extend in the horizontal direction. Of course, the partition plates 211 can also extend in the horizontal direction, and the connecting plates 212 are connected to the pair of partition plates 211 in the up and down direction, both of which can achieve the formation of the central air duct 221.

[0043] As another preferred embodiment of the present invention, as Figure 6As shown, the air distribution structure 21 divides the air duct 20 into a main air duct 24 and auxiliary air ducts 25 located around the main air duct 24. The air inlet 31 of the odor detection device 30 corresponds to the main air duct 24. The volume of the main air duct 24 is larger than that of the auxiliary air ducts 25. The setting of the main air duct 24 can fully mix the gas in the main air duct 24 with a larger space, and the gas entering the odor detection device 30 is more representative. The test results can more truly reflect the odor of the gas in the storage room, reminding the user to dispose of it in time and improving the user experience.

[0044] In this embodiment, the auxiliary air ducts 25 are respectively located on both sides of the main air duct 24. The ratio of the volume of the main air duct 24 to the volume of each auxiliary air duct 25 is not greater than 16:13. The appropriate volume ratio of the main air duct 24 to the auxiliary air ducts 25 can obtain specific gas and does not affect the circular transportation of other gases.

[0045] Specifically, the air distribution structure 21 includes a pair of partition plates 211 extending to the inner wall of the air duct 20. The main air duct 24 is formed between the pair of partition plates 211, and the auxiliary air ducts 25 are formed between the partition plates 211 and the inner wall of the air duct 20. In this embodiment, the lengths of the main air duct 24 and the auxiliary air ducts 25 in the front-back direction are the same, so the cross-sectional area of the main air duct 24 is larger than that of the auxiliary air ducts 25.

[0046] It can be understood that when the cross-sectional areas of the main air duct 24 and the auxiliary air ducts 25 in the transverse direction are equal, the length of the main air duct 24 in the front-back direction is greater than that of the auxiliary air ducts 25, and the technical effect of the larger volume of the main air duct 24 can also be achieved, which is also within the protection scope of the present invention.

[0047] Furthermore, the air distribution structure 21 further includes a pair of connecting plates 212 connected between the pair of partition plates 211. The main air duct 24 includes a central air duct 221 formed between the pair of connecting plates 212, an upper air duct 222 located above the central air duct 221, and a lower air duct 223 located below the central air duct 221. The volume of the central air duct 221 is not less than that of the upper air duct 222 and the lower air duct 223. The air inlet 31 of the odor detection device 30 is correspondingly arranged for the central air duct 221, that is, the odor detection device 30 only detects the gas transported from the central air duct 221, so that the detection results can represent the actual gas situation in the storage room, so that the user can dispose of it in time.

[0048] In the above two embodiments, the air duct 20 further includes a grille plate 27 located on the air outlet side of the air duct 20. The grille plate 27 is fixed to the air outlet end of the air distribution structure 21 to transport gas.

[0049] As Figure 2 shown, the odor detection device 30 is located on the air outlet side of the central air duct 221. Specifically, the odor detection device 30 includes a housing, an odor sensing unit and an air volume detection unit inside the housing. An air inlet 31 is provided on the housing, and the air inlet 31 faces the air conditioning device 10 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 31 is located in the middle of the air duct in the radial direction to receive more representative gas.

[0050] The odor detection device 30 is fixed on the grille plate 27 to fix the odor detection device 30, improve the stability of the test of the odor detection device 30, and at the same time does not affect the gas transportation.

[0051] As Figures 7 to 12 shown, the air conditioning device 10 is located upstream of the odor detection device 30 to adjust the wind speed entering the odor detection device 30, that is, the wind speed about to enter the odor detection device 30 is adjusted for uniformity, improve the detection accuracy of the odor detection device 30, and can accurately provide the odor in the storage room for the user. The user can make an effective judgment on the freshness state of the items in time, improving the user experience.

[0052] The air conditioning device 10 is located upstream of the odor detection device 30 to adjust the wind speed entering the odor detection device 30, that is, the air conditioning device 10 adjusts the wind speed about to enter the odor detection device 30 for uniformity, improve the detection accuracy of the odor detection device 30, and can accurately provide the odor in the storage room for the user. The user can make an effective judgment on the freshness state of the items in time, improving the user experience.

[0053] In a specific embodiment, the air conditioning device 10 is located in one of the air supply ducts, and the odor detection device 30 is located in the air supply duct or at the air outlet of the air supply duct, that is, the odor detection device 30 is arranged in the storage room near the downstream of the air supply 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 detection of the odor detection device 30.

[0054] In another specific embodiment, as Figure 2 and Figure 7 shown, the air conditioning device 10 is located in the return air duct, and the odor detection device 30 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 detection of the odor detection device 30.

[0055] In another specific embodiment, the air regulating device 10 is located in the air supply duct and the air return duct. After the gas in the air path is evenly regulated twice by the air regulating device, 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 and the air return duct, improving the accuracy of the odor detection device.

[0056] The following takes the air regulating device located in the air return duct as an example for detailed description. Since the refrigerating compartment is located at the rear side of the storage compartment, the air return duct communicates with the storage compartment and the refrigerating compartment in the front-rear direction. The radial direction of the air return duct is along the transverse direction, and the extending direction of the air return duct is the front-rear direction.

[0057] As Figure 1 and Figure 2 shown, the refrigeration device further includes a fan 40. The fan 40 is located in the air return duct and upstream of the air distribution structure 21 to convey the gas in the storage compartment into the air return duct. In order to convey the gas at each position in the storage compartment into the air return duct, two fans 40 are provided and arranged along the transverse direction of the refrigeration device. The air return duct corresponds to the space between the two fans 40.

[0058] As another preferred embodiment of the present invention, the refrigeration device further includes a mixing device 50 located between the fan 40 and the air return duct. As Figures 1 to 5 shown, the air to be pre-entered into the air return duct is fully mixed, so that the gas entering the odor detection device 30 from the downstream of the air return duct can represent the situation of the entire storage compartment, in order to timely feedback the real situation of the storage compartment to the user.

[0059] The mixing device 510 includes a cylinder 51 forming a mixing chamber 51. The length of the cylinder 51 is not less than the length of the air duct 20, so that the gas is fully mixed in the mixing chamber 510, and the gas conveyed into the air duct 20 can better represent the situation in the storage compartment.

[0060] The cylinder 510 includes an upper wall, a lower wall, and a pair of side walls connecting the upper wall and the lower wall. The mixing chamber 510 is formed between the upper wall, the lower wall, and the side walls. The radial direction of the cylinder 51 is the up-down direction, and the axial direction of the cylinder 51 is the length direction of the cylinder 51. In this embodiment, the axial direction of the cylinder 51 is the front-rear direction.

[0061] As Figures 2 to 5As shown, the air mixing device 50 further includes an air mixing plate 52 located in the air mixing chamber 510. The air entering the air mixing chamber 510 is fully mixed by the air mixing plate group 52. Specifically, the air mixing plate group 52 includes an air collecting plate 521 and a diffusing plate 522 arranged at intervals in sequence. Among them, in the direction from the air inlet side to the air outlet side of the air mixing chamber 510, the air collecting plate 521 extends from the edge of the cylinder body 51 towards the radial middle, and the diffusing plate 522 extends from the middle of the cylinder body 51 towards the edge. That is, the size of the air inlet end of the air collecting plate 521 is larger than the size of the air outlet end of the air collecting plate 521, and the size of the air inlet end of the diffusing plate 522 is smaller than the size of the air outlet end of the diffusing plate 522. First, the air collecting plate 521 is used to converge the gas entering the air mixing cylinder 510 and mix them together, and then the diffusing plate 522 is used to disperse and export the mixed gas. The mixed gas represents the real situation of all the gas before entering the air mixing chamber 510, providing a real reference for users and improving the user experience.

[0062] The air collecting plate 521 is symmetrically designed along the radial center of the cylinder body 51. The air collecting plate 521 forms an air inlet area 5213. The air collecting plate 521 guides the gas to the middle area of the cylinder body 51 for full mixing and then can be conveyed along the radial center of the cylinder body 51 to the diffusing plate 522, and further can be conveyed from the radial center of the cylinder body 51 to the middle position of the air duct 20. That is, the gas conveyed into the central air duct 221 along the radial center of the cylinder body 51 can better represent the real situation of the gas in the storage room, which is conducive to the odor detection device 30 to feedback the real data in the storage room.

[0063] Specifically, the air collecting plate 521 includes a pair of inner air collecting plates 5211 and several outer air collecting plates 5212 located outside the inner air collecting plates 5211. The inner air collecting plates 5211 are arranged close to the radial center of the cylinder body 51. The outer air collecting plates 5212 have the same shape as the inner air collecting plates 5211, and the inner air collecting plates 5211 and the outer air collecting plates 5212 are arranged at intervals along the radial direction of the cylinder body 51.

[0064] As Figure 4 shown, the ends of a pair of the inner air collecting plates 5211 close to the air inlet side form a first air inlet 5214, and the ends of a pair of the inner air collecting plates 5211 close to the air outlet side form a first air outlet 5215. The first air outlet 5215 is smaller than the first air inlet 5214. That is, a pair of the inner air collecting plates 5211 are in a funnel shape facing the diffusing plate 522. The gas passing through the inner air collecting plates 5211 is more concentrated, so that the gas enters from the first air inlet 5214, converges and mixes, and then is exported from the first air outlet 5215. That is, the area between the air collecting plate and the diffusing plate 522 forms an air mixing area 5216, and the gas flowing along the air collecting plate 521 is fully mixed in the air mixing area 5216.

[0065] In the radial direction of the cylinder body 51, the ratio of the size of the first air inlet 5214 to that of the air mixing cavity 510 is one-fourth to one-half. Preferably, the radial dimension of the first air inlet 5214 is one-third of that of the air mixing cavity 510. The size of the first air inlet 5214 can ensure that the wind speed of the air mixed by the outer air collecting plate 5212 is weaker than the wind speed of the air conveyed by the inner air collecting plate 5211. After the gas introduced by the outer air collecting plate 5212 is impacted by the gas conveyed by the first air outlet 5215, it is then mixed above or below the first air outlet 5215, improving the mixing efficiency and the stability of mixing.

[0066] Auxiliary air inlets and auxiliary air outlets are formed between adjacent outer air collecting plates 5212 or between the outer air collecting plate 5212 and adjacent inner air collecting plates 5211. The auxiliary air inlets are located on both sides of the first air inlet 5214 in the radial direction of the cylinder body 51, and the auxiliary air outlets are located on both sides of the first air outlet 5215 in the radial direction of the cylinder body 51.

[0067] In some embodiments, the air inlet ends of the inner air collecting plates 5211 and the outer air collecting plates 5212 are located inside the air mixing cavity 510. That is, a reserved space is formed between the air inlet ends of the air collecting plates 521 and the air inlet end of the cylinder body 51. When cooperating with the fan 40, the fan 40 can be arranged in the reserved space to convey gas into the air mixing cavity 510.

[0068] As Figure 4 and Figure 5 shown, the air mixing plate group 52 further includes a guide plate 523 located at the end of the air collecting plate 521 close to the air outlet side. The guide plate 523 extends along the axial direction of the cylinder body 51 from the end of the air collecting plate 521. Since the air collecting plate 521 is inclined towards the center of the air mixing cylinder 510, after the gas enters the interior of the air mixing cylinder 510 along the air collecting plate 521, it is buffered and redirected by the guide plate 523, preventing the gas from flowing towards the air outlet side of the cylinder body 51 too quickly, and enabling the gas to be fully mixed near the guide plate 523.

[0069] In this embodiment, the guide plate 523 is closely connected to the air collecting plate 521, so that there is no gap between the air collecting plate 521 and the guide plate 523. The wind guided by the air collecting plate 521 is directly buffered and redirected by the guide plate 523. Preferably, the air collecting plate 521 and the guide plate 523 are integrally formed to improve the structural strength of the air collecting plate 521 and the guide plate 523.

[0070] Furthermore, as Figure 5As shown, the mixing air plate group 52 includes a pair of air-dispersing plates 522 corresponding to each other vertically, and the pair of air-dispersing plates 522 are symmetrically designed with respect to the radial center of the cylinder body 51. A pair of the air-dispersing plates form an air-dispersing area 5213. The air-dispersing plates 522 exactly correspond to the inner air-collecting plate 5211, facilitating the gas mixed by the inner air-collecting plate 5211 to enter the air-dispersing area 5213. The center of the air-dispersing area 5213 corresponds to the central air duct 221 of the air duct 20, and the gas is facilitated to enter the central air duct 221 after being dispersed and buffered by the air-dispersing plate 522 in the middle.

[0071] The air inlet ends of a pair of the air-dispersing plates form a second air inlet 5224, and the second air inlet 5224 and the first air outlet 5215 are arranged at an axial interval along the cylinder body 51, so that part of the gas after being fully mixed near the first air outlet 5214 directly enters the air-dispersing area 5223 through the second air inlet 5224.

[0072] The air outlet sides of a pair of the air-dispersing plates 522 form a second air outlet 5225. The dimension of the second air outlet 5225 along the radial direction of the cylinder body 51 is larger than that of the second air inlet 5224, so that the air-dispersing plates 522 form a horn shape opening towards the air outlet side, which can slow down the flow rate of the gas and make the gas entering the air duct 20 relatively uniform.

[0073] The dimension of the second air outlet 5225 along the radial direction of the cylinder body 51 is equivalent to the dimension of the entire air-collecting plate 521 along the radial direction of the cylinder body 51, realizing the transportation of the gas.

[0074] Specifically, as Figure 5 shown, the air-dispersing plate 522 has a first section 5221 close to the air inlet side and a second section 5222 close to the air outlet side. The included angle between the first section 5221 and the axial direction of the cylinder body 51 is larger than the included angle between the second section 5222 and the axial direction of the cylinder body 51. The gas entering the air-dispersing area 5223 is buffered when reaching the second section 5222, and part of the gas is secondarily mixed with the gas in the middle area of the cylinder body 51.

[0075] As a preferred embodiment of the present invention, as Figure 4 and Figure 5As shown, the air mixing plate group 52 further includes a wind dividing member 523 located between the air collecting plate 521 and the air dispersing plate 522. The wind dividing member 523 is located at the radial center position of the cylinder body 51. The wind dividing member 523 divides the air mixing area 5216 into an upper air mixing area and a lower air mixing area along the radial direction of the cylinder body 51. The wind dividing member 523 separates the gas output from the first air outlet 5215 vertically and horizontally along the radial direction of the cylinder body 51 and enters the upper air mixing area and the lower air mixing area respectively. Specifically, during the process of the gas flowing from the funnel-shaped inner air collecting plate 5211 to the air guiding member 524, the wind speed increases. After the gas impacts the middle air guiding member 524, it will guide the air to a farther distance on the upper and lower sides, and then fully mix with the gas transported by the auxiliary air outlet in the upper air mixing area and the lower air mixing area respectively, and enter the second air inlet 5224 along the end of the wind dividing member 523 and then enter the air dispersing area 5223.

[0076] Preferably, the wind dividing member 523 is arranged closer to the air collecting plate 521 than the air dispersing plate 522, so that the gas entering the air mixing area 5216 can be guided into the upper air mixing area and the lower air mixing area by the wind dividing member 523 in a shorter time. The design of the wind dividing member 523 combined with the size of the first air inlet 5214 enables the gas transported through the auxiliary air outlet to be mixed with the gas guided by the wind dividing member 523 at the center of the upper air mixing area or the lower air mixing area, improving the efficiency and stability of air mixing.

[0077] Preferably, the wind dividing member 523 is arc-shaped and protrudes towards the air collecting plate 521. The arc-shaped wind dividing member 521 can play a role in guiding air.

[0078] It can be understood that the wind dividing member 523 can be an arc-shaped plate or a barrel-shaped one. As long as the surface facing the air collecting plate 521 direction is arc-shaped, the technical effect of air division can be achieved, and it is within the protection scope of this application.

[0079] Preferably, in the radial direction of the cylinder body 51, the size of the wind dividing member 523 is not less than the size of the first air outlet 5214. The gas output from the first air outlet 5214 is vertically and horizontally separated by the wind dividing member 523 and will not directly cross the wind dividing member 523 and enter the second air inlet 5224.

[0080] As another preferred embodiment of the present invention, as Figure 4 and Figure 5 shown, the air mixing plate group 52 further includes at least one air guiding member 524 located in the air dispersing area 5223. Part of the gas entering the air dispersing area 5223 from the second air inlet 5224 is guided by the air guiding member 524 into the air duct 20 on the air outlet side.

[0081] The air guide member 524 is disposed close to the first section 5221. Preferably, in the radial direction of the cylinder body 51, the air guide member 524 is larger than the size of the second air inlet 5224. When the gas located near the center along the air dispersion area 5223 passes through the air guide member 524, the gas bypasses the air guide member 524 and changes its direction, mixes again with the gas on both sides of the air guide member 524, and then is transported into the air duct 20 on the air outlet side.

[0082] In a specific embodiment, the air guide member 524 is in a columnar closed shape, including but not limited to a cylindrical shape, an elliptical cylindrical shape, and a spindle-shaped column. The air guide member 524 buffers the air and can evenly distribute the air, and guides part of the air to blow upward or downward and mix with the air near the air dispersion plate 522. The other part bypasses the air guide member 524 along the arc surface of the air guide member 524 and then is led out from the air outlet side of the cylinder body 51.

[0083] In another specific embodiment, the air guide member 524 is in a semi-closed shape opening towards the air outlet side of the cylinder body 51. The air guide member 524 includes but not limited to a semi-cylindrical shape, a horn-shaped column, and a triangular column. The air guide member 524 guides the air to the vicinity of the air dispersion plate 522 for mixing, and then is guided by the inner wall of the air dispersion plate 522 to the air outlet side.

[0084] In another specific embodiment, the air guide member 524 is in a semi-closed shape towards the second air inlet 5214. The air guide member 524 has an air guiding surface protruding towards the second air outlet. The air guide member 524 includes but not limited to a reverse C-shaped column and a reverse arc-shaped column. After the wind blows onto the air guide member 524, it is respectively guided to the upper and lower air dispersion plates 522 and mixed with the surrounding air, and then is guided by the air guiding surface to the air outlet side of the cylinder body 51.

[0085] In another specific embodiment, there are several air guide members 524, which can be a single combination of any shape in the above embodiments, or an arbitrary combination of multiple shapes.

[0086] It can be understood that when there is only one air guide member 524, the air guide member 524 is located at the center in the radial direction of the cylinder body 51 along the air dispersion area 5223; or, when there are several air guide members 524, several air guide members 524 are symmetrically arranged with respect to the center in the radial direction of the cylinder body 51.

[0087] As another preferred embodiment of the present invention, as Figure 2 and Figure 3As shown, the air mixing device 50 further includes a wind guiding structure 53 fixed to the air outlet end of the cylinder body 51. The wind guiding structure 53 includes a pair of inner wind guiding plates 531 arranged vertically, that is, the inner wind guiding plates 531 are fixed to the upper wall and the lower wall. The pair of inner wind guiding plates 531 extend obliquely towards each other into the air mixing cavity 510 from the end of the cylinder body 51, making the gas more concentrated between the pair of inner wind guiding plates 531, which is conducive to transporting the gas to the odor detection device 30 in the central air duct 221 of the air duct 20.

[0088] Further, as Figure 4 and Figure 5 shown, the included angle between the inner wind guiding plate 531 and the axis of the cylinder body 51 is between 30° and 60°. Preferably, the included angle between the inner wind guiding plate 531 and the axis of the cylinder body 51 is 45°. After the gas horizontally passes through the inner wall of the inner wind guiding plate 531, it is guided to flow towards the central direction along the radial direction of the cylinder body, and is mixed again with the gas below or above the inner wind guiding plate 531, and then is transported to the odor detection device 30 in the corresponding central air duct 221 of the downstream air duct 20.

[0089] The air outlet end of the inner wind guiding plate 531 forms a third air outlet. The third air outlet is the air outlet side of the air mixing device 50. The dimension of the third air outlet along the radial direction of the cylinder body is smaller than the dimension of the second air outlet along the radial direction of the cylinder body. The gas transported from the air dispersion area 5223 to the air outlet flows along the axial direction of the cylinder body 51 to the inner wall of the inner wind guiding plate 531, and after being blocked by the inner wall of the inner wind guiding plate 531, it flows downward and is mixed again with the gas in the middle of the air dispersion area 5223, and then is output from the third air outlet.

[0090] Further, as Figure 2 shown, the wind guiding structure 531 further includes a pair of outer wind guiding plates 532 fixed to the side wall of the cylinder body 51, that is, the outer wind guiding plates 532 are fixed to the side wall. The outer wind guiding plates 532 extend obliquely outwards from the end of the cylinder body 51, and disperse the gas along the transverse direction of the cylinder body 51, which is conducive to transporting the gas to the air duct 20.

[0091] Further, the included angle between the outer wind guiding plate 532 and the axis of the cylinder body 51 is between 30° and 60°. Preferably, the included angle between the outer wind guiding plate 532 and the axis of the cylinder body 51 is 45°, so that the air volume in the middle of the cylinder body 51 is greater than that on both sides, which is conducive to transporting more gas to the odor detection device 30 in the central air duct 221.

[0092] Further, the width of the outer wind guiding plate 532 is 10 mm to 12 mm. The appropriate size of the outer wind guiding plate 532 not only plays a role in dispersing the gas, but also does not affect the normal transportation of the gas at the middle position along the axial direction in the air mixing cavity 510.

[0093] AsFigures 7 to 12 As shown, the air flow regulating device 10 includes a downstream air flow measuring component 12, at least one air plate component 13 located upstream of the downstream air flow measuring component 12 and rotatably connected to the inner wall of the air duct 20, and a control unit (not shown). The odor detection device 30 is located downstream of the downstream air flow measuring component 12.

[0094] Specifically, the size of the downstream air flow measuring component 12 in the radial direction of the air duct 20 is not less than half of the total length of the air plate component 12, reducing the range of the downstream air outlet side of the air duct 20 and delivering the regulated and uniform gas to the odor detection device 30 in a targeted manner.

[0095] The downstream air flow measuring component 12 includes a number of downstream fans 121 and a downstream sensor (not shown) for detecting the rotation speed of the downstream fans 121. All the downstream fans 121 have the same size and specification. The downstream sensor is communicatively connected to the control unit to facilitate the communication unit receiving the result of the rotation speed of the downstream fans 121 measured by the downstream sensor. Preferably, the downstream sensor is located between two adjacent downstream fans 121 to reduce the error of the downstream sensor detecting the rotation speed of the downstream fans 121.

[0096] As Figure 8 and Figure 9 shown, a number of the downstream fans 121 enclose a wind gathering area 123 communicating with the air inlet 31 of the odor detection device 30. The uniform air regulated by the air plate component 13 is gathered through the arrangement of the downstream fans 121 to facilitate the odor detection device 30 to receive.

[0097] Preferably, there are at least three downstream fans 121, and the downstream fans 121 are arranged in a horn shape or a V shape, with the opening facing the odor detection device 30.

[0098] As Figure 8 and Figure 9 shown, the air plate component 13 includes an air regulating plate 131, at least one window 132 located on the air regulating plate 131, and a sub-air plate 133 rotatably connected to the air regulating plate 131 to open or close the window 132. The sub-air plate 133 has a free state of covering the window 132 and an air outlet state of being rotated by an external force to open the window 132. When the sub-air plate 133 is in the free state, the air plate component 13 closes the air duct.

[0099] As Figure 9As shown, after the sub-air plate 133 is subjected to the external force of the wind, it opens the window 132 to connect the upstream and downstream of the air duct 20. The wind enters the downstream from the window 132 and drives the downstream fan 121 to rotate. The control unit controls the rotation of the air regulating plate 131 according to the signal of the downstream sensor. After the air regulating plate 131 rotates, an air vent 1310 is formed between the edge of the air regulating plate 131 and the inner wall of the air duct 20 or between two adjacent air regulating plates 131. And the rotation angle of the air regulating plate 131 is adjusted multiple times through the feedback of the downstream sensor, that is, the size of the air vent 1310 is adjusted until the air outlet side of the air duct 20 conveys gas with uniform wind speed to the odor detection device 30.

[0100] Further, a pair of contact parts 134 are provided at intervals at the lower end of the air regulating plate 131. A track 26 for the contact parts 134 to move is provided on the inner wall of the air duct 20. The control unit controls the contact parts 134 to move along a track, thereby driving the air regulating plate 131 to rotate. It can be understood that the control unit controlling the contact parts 134 can be that the control unit is communicatively connected to the contact parts 134 to directly control the contact parts 134, or there is a signal connection unit (not shown) in the track 26, the control unit is communicatively connected to the signal connection unit, and the control unit controls the signal connection unit to rotate and indirectly controls the movement of the contact parts 134. Specifically, the track 26 is provided on the inner wall of the return air duct.

[0101] Preferably, the control unit is communicatively connected to the signal connection unit, the contact parts 134 are in contact with the signal connection unit, and the control unit indirectly controls the movement of the contact parts 134.

[0102] As a preferred embodiment of the present invention, as Figure 6 and Figure 7 shown, the track 26 and the signal connection unit in the track 26 are arc-shaped. The control unit controls the signal connection unit and drives the contact parts 134 to move along the track 26. Since the track 26 is arc-shaped, the contact parts 134 drive the air plate assembly 13 to rotate during the process of moving along the track 26. An air vent 1310 is formed between the edge of the air regulating plate 131 and the inner wall of the air duct 20. The signal connection unit feeds back the rotation angle information of the air regulating plate 131 to the control unit so that the control unit can give the next instruction.

[0103] It can be understood that in the case where there are multiple air plate assemblies 13, the air vents 1310 are formed not only between the air regulating plate 131 and the inner wall of the air duct 20, but also between two adjacent air regulating plates 131.

[0104] As another preferred embodiment of the present invention, the track 26 linearly extends along the axial or radial direction of the air duct 20. In this embodiment, a plurality of air plate assemblies 13 are provided. When the plurality of air plate assemblies 13 are coplanar, the air duct 20 is closed. The control unit controls the signal connection unit and drives the contact portion 134 to move along the track 26, thereby driving the air plate assembly 13 to move along the radial or axial direction of the air duct 20. An air vent 1310 is formed between the air adjusting plate 131 and the inner wall of the air duct 20 or between two adjacent air adjusting plates 131. At the same time, the signal connection unit collects the distance information of the linear movement of the air adjusting plate 131 and feeds it back to the control unit so that the control unit can give the next instruction.

[0105] In this embodiment, the air vent 1310 formed between two adjacent air adjusting plates 131 is formed by the two air adjusting plates 131 being displaced from each other along the radial or axial direction of the air duct. Similarly, the size of the air vent 1310 can be adjusted by adjusting the position of the air adjusting plate 131.

[0106] Furthermore, the air plate assembly 13 includes a plurality of windows 132, and the plurality of windows 132 are arranged in a matrix on the air adjusting plate 131. Correspondingly, the air plate assembly 13 includes a plurality of sub-air plates 133, and the sub-air plates 133 are arranged in a matrix. The windows 132 are uniformly arranged along the radial direction of the air duct 20, so that the wind speed of the gas upstream of the air duct 20 entering the downstream through the plurality of windows 132 is as close to a uniform state as possible.

[0107] The air plate assembly 13 further includes a fixed shaft (not shown) for rotatably connecting the sub-air plates 133. The sub-air plates 133 rotate relative to the fixed shaft under the external force of the wind to open or close the windows 132.

[0108] Preferably, the fixed shaft is fixed in the middle in the up and down direction of the window 132, and the middle in the up and down direction of the sub-air plate 133 cooperates with the fixed shaft. After the sub-air plate 133 is subjected to an external force, its upper and lower parts rotate simultaneously to adjust the size of the window 132. The air plate assembly 13 communicates the upstream and downstream of the air duct 20 through a plurality of windows 132, and can further make the wind speed entering the downstream of the air duct 20 uniform.

[0109] As another preferred embodiment of the present invention, as Figures 10 to 12As shown, the air plate assembly 13 further includes an auxiliary window 136 spaced from the window 132, and an auxiliary air plate assembly 137 cooperating with the auxiliary window 136. The control unit is communicatively connected to the auxiliary air plate assembly 137 to control and adjust the rotation or movement of the auxiliary air plate assembly 137, thereby adjusting the size of the covering of the auxiliary window 136. The setting of the auxiliary window 136 can perform multi-dimensional adjustment on the air regulating plate 131, and perform targeted adjustment on different positions along the radial direction of the air duct 20, so as to improve the efficiency of adjusting the air speed downstream of the air duct 20.

[0110] In this embodiment, the window 132 is located in the middle of the air regulating plate 131 in the up-down direction. The auxiliary window 136 is provided with two rows and is respectively located on the upper side and the lower side of the window 132, which can adjust the uniformity of the gas transported to the downstream of the air duct 20 from multiple angles.

[0111] In a specific embodiment, as Figure 11 and Figure 12 shown, the auxiliary air plate assembly 137 includes an auxiliary rotating shaft (not shown) extending up and down, and an auxiliary sub-air plate 1372 fixedly connected to the auxiliary rotating shaft. A rotating groove 1373 for receiving the auxiliary rotating shaft is provided on the bottom wall of the auxiliary window 136. An auxiliary signal connection unit (not shown) in contact with the auxiliary rotating shaft is provided in the rotating groove 1373. The auxiliary signal connection unit is communicatively connected to the control unit. The control unit drives the auxiliary signal connection unit according to the feedback of the downstream sensor 121 and drives the auxiliary rotating shaft to rotate, thereby driving the auxiliary sub-air plate 1372 to rotate. At the same time, the signal connection unit also collects the rotation angle of the auxiliary rotating shaft, and then determines whether further adjustment is needed.

[0112] In this embodiment, each auxiliary signal connection unit is connected in parallel through a communication line and then connected to the signal connection unit, and thus is communicatively connected to the control unit.

[0113] It can be understood that the control unit can separately control the auxiliary air plate assembly 137 to adjust the size of the auxiliary window 136 according to requirements, can also separately control the rotation angle and moving distance of the air regulating plate 131 according to requirements, or can also control the auxiliary air plate assembly 137 and the air regulating plate 131 simultaneously to improve the adjustment efficiency.

[0114] The present invention also provides a control method for a refrigeration device. As Figures 13 to 15 shown, the above refrigeration device realizes the adjustment of the air volume and uniformity at the outlet of the air duct 20 by executing the described control method.

[0115] When the temperature inside the storage room is higher than a certain temperature, the blower 40 is started to supply air into the storage room, and at the same time, the air regulating device 10 is controlled to start working.

[0116] As Figures 13 to 15 shown, the control method includes: starting the blower 40, driving the sub-air plate 133 to rotate relative to the fixed shaft to open the window 132 to be in the air outlet state; obtaining the rotation speeds of a plurality of downstream fans 121 through the downstream sensor, and determining whether the rotation speeds of any two downstream fans 121 are the same; if not, entering the adjustment step, controlling the air plate assembly 13 to rotate or move to form a ventilation opening 1310 between the inner wall of the air duct 20 or between two adjacent air plate assemblies 13, and adjusting the size of the ventilation opening 1310 until the rotation speeds of all the downstream fans 121 are the same, and then maintaining the current size of the ventilation opening 1310 to continue air supply.

[0117] The control method of the present invention feeds back the rotation speeds of the downstream fans 121 to the control unit through the downstream sensor, and then adjusts the size of the ventilation opening 1310 to change the air volume conveyed to the downstream of the air duct 20. By monitoring the downstream wind speed to be in a uniform state through the downstream fans 121, the 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 30, thereby improving the user experience.

[0118] Before the downstream sensor detects the rotation speed of the downstream fan 121, wait for the downstream fan 121 to rotate and last for a first duration. After waiting for the rotating downstream fan 121 to be in a stable state, then obtain the rotation speeds of a plurality of downstream fans 121, so that the detection result of the downstream sensor is more representative and accurate.

[0119] As Figure 15 shown, the adjustment step includes: further determining whether the rotation speed difference between any two downstream fans 121 is greater than a first threshold. If so, entering the high-amplitude adjustment step; if not, entering the low-amplitude adjustment step. The air regulating plate 12 can be adjusted through the high-amplitude adjustment step and / or the low-amplitude adjustment step according to the actual situation, which can effectively improve the adjustment efficiency.

[0120] In the embodiment where the track 26 is arc-shaped, the high-amplitude adjustment step includes: determining the air plate assembly close to the downstream fan 121 with a lower rotation speed, and controlling the air plate assembly 13 to rotate, so that a ventilation opening 1310 is formed between the air plate assembly 13 and the inner wall of the air duct 26 or between two adjacent air plate assemblies 13. The air upstream of the air duct 20 can enter the downstream of the air duct 20 not only through the window 132 but also through the ventilation opening 1310 to specifically compensate for the downstream fan 121 with a slow rotation speed, thereby achieving the purpose of adjusting the wind speed.

[0121] In an embodiment where the track 26 is linear, generally a plurality of air deflector assemblies 13 are provided. The high-amplitude adjustment step includes: determining the air deflector assembly 13 close to the downstream fan 121 with a lower rotational speed, and controlling the corresponding contact portion 134 of the air deflector assembly 13 to move along the track 26 to drive the air deflector assembly 13 to move linearly, so as to form a ventilation opening 1310 between the air deflector assembly 13 and the inner wall of the air duct 20 or between two adjacent air deflector assemblies 13; in addition to the air upstream of the air duct 20 entering the downstream of the air duct 20 through the window 132, it can also enter the downstream of the air duct 20 through the ventilation opening 1310 to specifically compensate for the downstream fan 121 with a slow rotational speed, thereby achieving the purpose of adjusting the wind speed.

[0122] In an embodiment where the air deflector assembly 13 further includes an auxiliary air deflector assembly 137, the high-amplitude adjustment step includes: determining the auxiliary sub-air deflector 1372 close to the downstream fan 121 with a lower rotational speed, and controlling the auxiliary sub-air deflector 1372 to rotate to adjust the size of the auxiliary window 136 opened by the auxiliary sub-air deflector 1372; in addition to the air upstream of the air duct 20 entering the downstream of the air duct 20 through the window 132, it can also enter the downstream of the air duct 20 through the auxiliary window 136 to specifically compensate for the downstream fan 121 with a slow rotational speed, thereby achieving the purpose of adjusting the wind speed.

[0123] The high-amplitude adjustment step of this embodiment can be combined with the above two embodiments respectively to jointly adjust the wind speed from the upstream to the downstream of the air duct 20.

[0124] In the above three embodiments, after adjusting the ventilation opening 1310 or the auxiliary window 136 once, wait for the downstream fan 121 to run for a certain period of time, and then re-obtain the rotational speed difference between any two downstream fans 121 after the rotational conditions of all downstream fans 121 are stable until the rotational speed difference between any two downstream fans 121 is not greater than the first threshold; then enter the low-amplitude adjustment step.

[0125] The low-amplitude adjustment step includes: controlling all the air deflector assemblies 13 to rotate or move slightly respectively, and finely adjusting until the rotational 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.

[0126] Based on any of the above adjustment steps, as Figure 14 shown, the control method further includes: after the rotational speeds of all downstream fans 121 are the same, controlling the odor detection device 30 to detect the air volume on the air outlet side of the air duct and obtain a first air volume detection value, and then comparing it with the air volume threshold, so that the air volume entering the odor detection device 30 meets the requirements of the test to improve the detection accuracy.

[0127] Specifically, if the first air volume detection value is greater than the first preset air volume value, the fan 40 is controlled to reduce the air volume; if the first air volume detection value is less than the second preset air volume value, the fan 40 is controlled to increase the air volume; if the first air volume detection value is between the first preset air volume value and the second preset air volume value, the odor detection device 30 is controlled to start detection, where the first preset air volume value is greater than the second preset air volume value.

[0128] Of course, the step of controlling the odor detection device 30 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 speed of the downstream fan 121. After the air volume at the air outlet meets the requirements, the uniformity at the air outlet of the air duct 20 is adjusted, reducing the number of times of adjusting the air regulating device 10 and improving the working efficiency of the whole process.

[0129] After controlling the fan 40 to reduce the air volume or controlling the fan 40 to increase the air volume, waiting for the second preset duration to make the downstream fan 121 in a stable rotation state, then obtaining the rotation speed of the downstream fan 121 and determining whether the rotation speeds of any two of the downstream fans 121 are the same, and then entering the next process

[0130] The refrigeration device of the present invention combines the odor detection device 30 provided in the air duct 20 with the air regulating device 10 upstream of the odor detection device 30 to adjust the uniformity of the air pre-entering the odor detection device 30, improving the detection accuracy of the odor detection device 30, and accurately providing the odor in the storage room for the user. The user can effectively judge the freshness state of the items in time, improving the user experience.

[0131] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way 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 that can be understood by those skilled in the art.

[0132] 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 changes 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, Odor detection device, located inside the air duct or at the air outlet of the air duct; Air flow regulating device, the air flow regulating device is located upstream of the odor detection device to regulate the wind speed entering the odor detection device. The air flow regulating device includes a downstream wind speed measuring component, at least one air plate component movably connected to the inner wall of the air duct, and a control unit for controlling the rotation or movement of the air plate component to form a ventilation opening with the inner wall of the air duct. The downstream wind speed measuring component includes at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fans; the air plate component includes an air regulating plate, at least one window located on the air regulating plate, and a sub-air plate rotatably connected to the air regulating plate to open or close the window. The control unit is communicatively connected to the downstream sensor and controls the rotation or movement of the air regulating plate.

2. The refrigeration device according to claim 1, characterized in that, A pair of contact parts are spaced apart at the lower end of the air regulating plate, and a track for the contact parts to move is provided on the inner wall of the air duct. The control unit is communicatively connected to the contact parts to control the movement of the contact parts along the track, thereby driving the rotation of the air plate component.

3. The refrigeration device according to claim 1, characterized in that, A pair of contact parts are spaced apart at the lower end of the air regulating plate, and a track for the contact parts to move is provided on the inner wall of the air duct. A signal connection unit is provided in the track. The control unit is communicatively connected to the signal connection unit to drive the signal connection unit to drive the contact parts to move along the track.

4. The refrigeration device according to claim 3, characterized in that, The track is arc-shaped, and the control unit controls the signal connection unit and drives the contact parts to move along the track, thereby driving the rotation of the air regulating plate.

5. The refrigeration device according to claim 3, characterized in that, A plurality of the air plate components are provided. When the plurality of air plate components are coplanar, the air duct is closed. The track extends linearly along the axial or radial direction of the air duct. The control unit selectively controls the signal connection unit and drives the contact parts to move along the track, thereby driving the air plate component to move along the radial or axial direction of the air duct.

6. The refrigeration device according to claim 1, characterized in that, The air plate component further includes a fixed shaft for rotatably connecting the sub-air plate, and the fixed shaft is fixed in the middle in the up-down direction of the window.

7. The refrigeration device according to claim 1, characterized in that, The air plate component further includes an auxiliary window spaced apart from the window and an auxiliary sub-air plate cooperating with the auxiliary window. The control unit is communicatively connected to the auxiliary sub-air plate to control the rotation or movement of the auxiliary sub-air plate to adjust the size of covering the auxiliary window.

8. The refrigeration device according to claim 1, characterized in that, The size of the downstream wind speed measuring component along the arrangement direction of the air plate component is not less than half of the total length of the air plate component.

9. The refrigeration device according to claim 1, characterized in that, A plurality of the downstream fans enclose a wind gathering area communicating with the air inlet hole of the odor detection device, and the downstream fans are arranged in a horn shape or a V shape.

10. The refrigeration device according to any one of claims 1 to 8, characterized in that, 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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