Air regulating device and refrigeration equipment with same

Abstract

The invention provides an air regulation device and refrigeration equipment with the air regulation device, the air regulation device comprises an upstream air measurement assembly, a downstream air measurement assembly, a plurality of air regulation plate units located between the upstream air measurement assembly and the downstream air measurement assembly and a control unit, the upstream air measurement assembly comprises a plurality of upstream fans and an upstream sensor, and the downstream air measurement assembly comprises a plurality of downstream fans and a downstream sensor; the downstream wind measuring assembly comprises at least two downstream fans and a downstream sensor; the multiple air adjusting plate units are rotationally connected into the air flue, and the air flue is closed when the multiple air adjusting plate units are coplanar. The control unit is in communication connection with the downstream sensor, the upstream sensor and the air adjusting plate unit. Wherein the control unit controls the air adjusting plate unit to rotate according to signals of the downstream sensor and the upstream sensor so as to adjust the angle of the air adjusting plate unit, so that the uniformity of downstream air outlet of the air duct is adjusted, air entering the storage chamber is uniform, the quality of article storage is improved, and then the use experience of a user is improved.

Description

Technical Field

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

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

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

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

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

[0006] An upstream air velocity measuring assembly, including a plurality of upstream fans and an upstream sensor for detecting the rotational speed of the upstream fans;

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

[0008] A plurality of air regulating plate units, located between the upstream air velocity measuring assembly and the downstream air velocity measuring assembly. The plurality of air regulating plate units are rotatably connected in the air duct. When the plurality of air regulating plate units are coplanar, the air duct is closed;

[0009] A control unit, communicatively connected to the downstream sensor, the upstream sensor, and the air regulating plate units respectively;

[0010] Wherein, the control unit controls the rotation of the air regulating plate units according to the signals of the downstream sensor and the upstream sensor to adjust the angles of the air regulating plate units.

[0011] Further, the air regulating plate unit includes a rotating shaft for rotatably connecting to the inner wall of the air duct and an air regulating plate fixedly connected to the rotating shaft. The control unit is communicatively connected to the rotating shaft.

[0012] Further, the air regulating plate is fixedly connected to the rotating shaft at the middle or one end along the radial direction of the air duct.

[0013] Further, the height of the air regulating plate is not less than the height of the upstream fans and the downstream fans.

[0014] Further, the air regulating plates are arranged in one-to-one correspondence with the upstream fans, and in the axial direction of the air duct, the connection position between two adjacent air regulating plates is located between two adjacent upstream fans.

[0015] Further, the height of the upstream fans is not lower than that of the downstream fans.

[0016] Further, the number of the upstream fans is greater than that of the downstream fans, and the dimension of the downstream air measurement assembly in the radial direction of the air duct is not less than half of the total length of several air regulating plate units.

[0017] Further, several downstream fans enclose a wind gathering area.

[0018] Further, there are at least three downstream fans, and the downstream fans are arranged in a horn shape or a V shape.

[0019] The present invention further provides a refrigeration device, which includes an air duct and the above-mentioned air regulating device arranged in the air duct. The air duct includes 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.

[0020] Compared with the prior art, the beneficial effect of the present invention is that: the air regulating device of the present invention adjusts the rotation angle of the air regulating plate unit according to the rotation speeds of the upstream fans and the downstream fans through a control unit, so as to adjust the uniformity of the air outlet at the downstream of the air duct, make the air entering the storage room more uniform, improve the quality of item preservation, and further improve the user experience. Description of the Drawings

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

[0022] Figure 2 is Figure 1 an exploded view of each component in the embodiment.

[0023] Figure 3 is Figure 2 a sectional view of the air mixing device along the axial direction of the cylinder in.

[0024] Figure 4 is Figure 3 a side view of the air mixing device in.

[0025] Figure 5 is Figure 4 the air path diagram of the air mixing device in.

[0026] Figure 6 is Figure 2 a structural schematic diagram of an embodiment of the air duct in.

[0027] Figure 7 isFigure 1 Schematic diagram of the structure of the secondary air regulating device cooperating with the air duct.

[0028] Figure 8 is Figure 7 A sectional view taken along the A-A direction in

[0029] Figure 9 is Figure 1 Schematic diagram of the structure of the secondary air regulating device in the state of closing the air duct.

[0030] Figure 10 is Figure 1 Schematic diagram of the structure of the secondary air regulating device in the state of opening the air duct.

[0031] Figure 11 is a flowchart of an embodiment of the control method of the present invention.

[0032] Figure 12 is a flowchart of another embodiment of the control method of the present invention.

[0033] Figure 13 is a flowchart of the adjustment step in the control method of the present invention. Detailed implementation manners

[0034] 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 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 towards the ground is taken as the lower, and conversely, the direction away from the ground is taken as the upper. Other descriptions indicating orientations are all defined based on "upper" and "lower".

[0036] In the various drawings of the present invention, for the convenience of illustration, the dimensions of some structures or parts are exaggerated relative to other structural parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present invention.

[0037] The present invention provides a air regulating device 10 and a refrigeration device having the same, such as Figure 1 in Figure 10As shown in the figure, the refrigeration device includes an air duct 20 and an odor detection device 30 located inside the air duct 20 or on the air outlet side of the air duct 20. The air regulating device 10 is located upstream of the odor detection device 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 container to convey 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 conveyed to the refrigeration room through the return air duct 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. The following embodiments do not limit the air duct to be a supply air duct or a return air duct.

[0038] As Figure 2 shown in the figure, 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. The following takes the wind distribution structure 21 provided in the return air duct as an example for detailed description.

[0039] As a preferred embodiment of the present invention, as Figure 2 shown in the figure, the wind distribution structure 21 divides the air duct 20 into an intermediate air duct 22 and a side air duct 23 located on the side of the intermediate air duct 22. The air inlet of the odor detection device 30 corresponds to the intermediate air duct 22. By setting the intermediate air duct 22 and the odor detection device 30 corresponding to the downstream of the intermediate air duct 22 in the refrigeration device, the gas is conveyed to the air duct 20 after being disturbed and mixed by the fan. The gas at the edge of the air duct 20 is conveyed to the downstream of the air duct 20 through the side air duct 23, while the odor detection device 30 only detects the relatively uniformly mixed gas conveyed 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 time 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 convey the gas near the upper side or the lower side of the air duct 20 through the upper air duct 222 and the lower air duct 223 respectively. The central air duct 221 only conveys 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 transverse direction. Of course, the partition plates 211 may also extend in the transverse 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 6 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 of the odor detection device 30 corresponds to the main air duct 24. The volume of the main air duct 24 is larger than the volume 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. The gas entering the odor detection device 30 is more representative, and the test result 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 and back direction are the same, so the cross-sectional area of the main air duct 24 is larger than the cross-sectional area 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 and back direction is greater than the length of the auxiliary air ducts 25, which can also achieve the technical effect of a larger volume of the main air duct 24 and is also within the protection scope of the present invention.

[0047] Further, the air distribution structure 21 further includes a pair of connecting plates 212 connected between a pair of the 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 of the odor detection device 30 is correspondingly arranged opposite to the central air duct 221, that is, the odor detection device 30 only detects the gas conveyed from the central air duct 221, so that the detection result can represent the real gas situation in the storage room, so that the user can dispose of it in time.

[0048] As Figure 2 and Figure 8 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 regulating device 10, 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 31 is located in the middle of the air duct in the radial direction to receive more representative gas.

[0049] The air regulating device 10 is located upstream of the odor detection device 30 to regulate the wind speed entering the odor detection device 30, that is, to uniformly regulate the wind speed entering the odor detection device 30, improve the detection accuracy of the odor detection device 30, and accurately provide the odor in the storage room for the user, so that the user can effectively judge the freshness state of the items in time and improve the user experience.

[0050] In a specific embodiment, as Figure 2 and Figure 7 shown, the air regulating 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 regulated by the air regulating device 10, and improve the accuracy of the odor detection device 30.

[0051] In another specific embodiment, the air regulating 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 regulated by the air regulating device 10, and improve the accuracy of the odor detection device 10.

[0052] 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 10, it is considered that the wind speed at any position in the air path is in the same state. The odor detection device 30 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 detection by the odor detection device 30.

[0053] Hereinafter, taking the case where both the air regulating device 10 and the odor detection device 30 are located in the air return duct as an example for detailed description.

[0054] As Figure 2 、 Figures 7 to 10 shown, the air regulating device 10 includes an upstream wind measurement component 11, a downstream wind measurement component 12, a plurality of air regulating plate units 13 located between the upstream wind measurement component 11 and the downstream wind measurement component 12, and a control unit (not shown). The control unit is communicatively connected to the air regulating plate units 13 to adjust the angles of the air regulating plate units 13 to open or close the air duct 20.

[0055] As Figures 8 to 10 shown, the upstream wind measurement component 11 includes a plurality of upstream fans 111 and an upstream sensor (not shown) for detecting the rotation speed of the upstream fans 111. All the upstream fans 111 have the same size and specification. The upstream sensor is communicatively connected to the control unit to timely obtain the rotation speed of the upstream fans 111. Preferably, the upstream sensor is located in the middle of two adjacent upstream fans 111 to reduce the test error of the upstream fans 111.

[0056] The upstream fans 111 are arranged in sequence along the radial direction of the air duct 20 to evenly convey the wind in the radial direction of the air duct 20 to the downstream. The height of the upstream fans 111 is not less than the height of the downstream fans 121 in the downstream wind measurement component 12, improving the air supply efficiency of the upstream fans 121.

[0057] The downstream wind measurement component 12 includes at least two 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 timely obtain the rotation speed of the downstream fans 121. The air inlet of the odor detection device 30 is arranged facing the downstream wind measurement component 12.

[0058] Preferably, the downstream sensor is located in the middle of two adjacent downstream fans 121 to reduce the test error of the downstream fans 121.

[0059] The number of the downstream fans 121 is less than that of the upstream fans 111. At the same time, the size of the downstream air velocity measuring component 12 in the radial direction of the air duct is not less than half of the total length of a plurality of air regulating plate units 13, so as to narrow the range of the downstream air outlet side of the air duct 20 and send the adjusted and uniform air to the odor detection device 30 in a targeted manner.

[0060] The downstream air velocity measuring component 12 includes a plurality of downstream fans 121. The plurality of downstream fans 121 enclose a wind gathering area 123 communicated with the air inlet of the odor detection device 30, and the adjusted and uniform air passes through the wind gathering area 123 to facilitate the reception of the odor detection device 30.

[0061] Preferably, the number of the downstream fans 121 is at least three, and the downstream fans 121 are arranged in a horn shape or a V shape, with the opening facing the odor detection device 30.

[0062] As Figures 8 to 10 As shown, a plurality of air regulating plate units 13 are rotatably connected in the air duct 20. When the plurality of air regulating plate units 13 are coplanar, the air duct 20 is closed. Among them, the plurality of air regulating plate units 13 being coplanar includes the air regulating plate units 13 being coplanar or co-curved surfaces, and both can close the air duct 20. Preferably, the height of the air regulating plate unit 13 is higher than that of the upstream fan 111 and the downstream fan 121 to close the air duct.

[0063] Each air regulating plate unit 13 includes a rotating shaft 132 rotatably connected to the inner wall of the air duct 20 and an air regulating plate 131 fixedly connected to the rotating shaft 132. The rotating shaft 132 is communicatively connected to the control unit.

[0064] The control unit controls the rotation of the rotating shaft 132. The rotation of the rotating shaft 132 drives the rotation of the air regulating plate 131. After the air regulating plate 131 rotates by a certain angle, a ventilation opening 1310 is formed between the edge of the air regulating plate 131 and the inner wall of the air duct or between the edges of two adjacent air regulating plates. The upstream fan 111 drives the air to enter the downstream of the air duct 20 from the ventilation opening 1310, thereby driving the rotation of the downstream fan 121 or adjusting the rotation speed of the downstream fan 121.

[0065] The middle or one end of the air regulating plate 131 is fixedly connected to the rotating shaft 132. The rotation of the rotating shaft 132 drives the rotation of both ends or one end of the air regulating plate 131, improving the diversity of the rotation angle of the air regulating plate 131.

[0066] Preferably, the air deflectors 131 are arranged in one-to-one correspondence with the upstream fans 111. In the arrangement direction of the upstream air measurement assembly 11 and the downstream air measurement assembly 12, that is, in the axial direction of the air duct 20, the connection part between two adjacent air deflectors 131 is located between two adjacent upstream fans 111. The air passing through two adjacent upstream fans 111 is mixed when passing through the same vent 1310 and then enters the downstream of the air duct 20. The air entering the downstream fan 121 can represent the situation of the entire air duct 20.

[0067] The control unit is respectively communicatively connected to the downstream sensor, the upstream sensor, and the air deflector unit 13. Among them, the control unit is communicatively connected to the rotating shaft 132. The control unit controls the rotation of the rotating shaft 132 according to the signals of the downstream sensor and the upstream sensor, and the air deflector 131 rotates to adjust the angle of the air deflector 131 to open or close the air duct 20, so that air enters the downstream of the air duct.

[0068] As Figures 1 to 2 shown, the refrigeration device further includes a fan 40, and the fan 40 is located in the return air duct and upstream of the air distribution structure 21 to transport the gas in the storage room into the return air duct. In order to ensure that the gas at the position of the storage room can be transported into the return air duct, two fans 40 are provided and arranged horizontally along the refrigeration device, and the return air duct corresponds to the space between the two fans 40.

[0069] As another preferred embodiment of the refrigeration device of the present invention, as Figures 1 to 5 shown, the refrigeration device further includes a air mixing device 50 located between the fan 40 and the return air duct to fully mix the air to be pre-entered into the return air duct, so that the gas entering the odor detection device 30 from the downstream of the return air duct can represent the situation of the entire storage room, and the real situation of the storage room can be timely fed back to the user.

[0070] As Figure 3 shown, the air mixing device 510 includes a cylinder 51 forming an air mixing chamber 51, and 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 air mixing chamber 510, and the gas transported into the air duct 20 can better represent the situation in the storage room.

[0071] 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 air 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-back direction.

[0072] As Figure 4 and Figure 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 and mix the gas entering the air mixing cylinder 510 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.

[0073] 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. After guiding the gas to the middle area of the cylinder body 51 for full mixing, the air collecting plate 521 can convey it along the radial center of the cylinder body 51 to the diffusing plate 522, and then it 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 indoor gas in the storage room, which is conducive to the odor detection device 30 to feedback the real data of the indoor of the storage room.

[0074] 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.

[0075] 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.

[0076] 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 chamber 510 is one quarter to one half. Preferably, the radial dimension of the first air inlet 5214 is one third of that of the air mixing chamber 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 that 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.

[0077] 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 the adjacent inner air collecting plate 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.

[0078] In some embodiments, the air inlet ends of the inner air collecting plate 5211 and the outer air collecting plate 5212 are located inside the air mixing chamber 510. That is, a reserved space is formed between the air inlet ends of the air collecting plate 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 chamber 510.

[0079] 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 inside 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, so that the gas is fully mixed near the guide plate 523.

[0080] 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.

[0081] Further, the air mixing plate group 52 includes a pair of air diffusing plates 522 that are vertically corresponding, and the pair of air diffusing plates 522 are symmetrically designed with respect to the radial center of the cylinder body 51. The pair of air diffusing plates form an air diffusing area 5213. The air diffusing plate 522 exactly corresponds to the inner air collecting plate 5211, facilitating the gas mixed by the inner air collecting plate 5211 to enter the air diffusing area 5213. The center of the air diffusing area 5213 corresponds to the central air duct 221 of the air duct 20. After being dispersed and buffered by the air diffusing plate 522 in the middle, the gas can conveniently enter the central air duct 221.

[0082] The air inlet ends of the pair of air diffusing plates form a second air inlet 5224. 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 diffusing area 5223 through the second air inlet 5224.

[0083] The air outlet sides of the pair of air diffusing plates 522 form a second air outlet 5225. The radial dimension of the second air outlet 5225 along the cylinder body 51 is larger than that of the second air inlet 5224, making the air diffusing plate 522 form a horn shape opening towards the air outlet side, which can slow down the gas flow rate and make the gas entering the air duct 20 relatively uniform.

[0084] The radial dimension of the second air outlet 5225 along the cylinder body 51 is equivalent to the radial dimension of the entire air collecting plate 521 along the cylinder body 51, realizing the transportation of the gas.

[0085] Specifically, the air diffusing 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. When the gas entering the air diffusing area 5223 reaches the second section 5222, it is buffered, and part of the gas is secondarily mixed with the gas in the middle area of the cylinder body 51.

[0086] As a preferred embodiment of the present invention, as Figure 4 、 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, when the gas flows 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 wind to a farther distance on both 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 enters the second air inlet 5224 along the end of the wind dividing member 523 and then enters the air dispersing area 5223.

[0087] 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 is 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 by 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.

[0088] 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 the wind.

[0089] It can be understood that the wind dividing member 523 can be an arc-shaped plate or a barrel shape. As long as the surface facing the air collecting plate 521 direction is arc-shaped, the technical effect of wind division can be achieved, and it is within the protection scope of this application.

[0090] 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 separated vertically and horizontally by the wind dividing member 523 and will not directly cross the wind dividing member 523 and enter the second air inlet 5224.

[0091] As another preferred embodiment of the present invention, 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.

[0092] 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 conveyed into the air duct 20 on the air outlet side.

[0093] In a specific embodiment, the air guide member 524 has a columnar closed shape, including but not limited to a cylindrical shape, an elliptical cylindrical shape, and a spindle-shaped columnar shape. 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, and 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.

[0094] 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 columnar shape, and a triangular columnar shape. 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.

[0095] 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.

[0096] 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.

[0097] 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 the center in the radial direction of the cylinder body 51 as the center.

[0098] As another preferred embodiment of the present invention, as Figure 2As 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 chamber 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 beneficial for transporting the gas to the odor detection device 30 in the central air duct 221 of the air duct 20.

[0099] Furthermore, the included angle between the inner wind guiding plate 531 and the axial direction of the cylinder body 51 is between 30° and 60°. Preferably, the included angle between the inner wind guiding plate 531 and the axial direction 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.

[0100] 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.

[0101] Furthermore, 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 beneficial for transporting the gas to the air duct 20.

[0102] Furthermore, the included angle between the outer wind guiding plate 532 and the axial direction of the cylinder body 51 is between 30° and 60°. Preferably, the included angle between the outer wind guiding plate 532 and the axial direction 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 beneficial for transporting more gas to the odor detection device 30 in the central air duct 221.

[0103] Furthermore, 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 chamber 510.

[0104] The present invention also provides a control method for a refrigeration device, such as Figures 11 to 13As shown, the above refrigeration equipment realizes the adjustment of the air volume and uniformity at the outlet of the air duct 20 by executing the control method.

[0105] When the temperature in the storage room is higher than a certain temperature, control the start of the fan 40 to form an air path circulation between the storage room and the refrigeration room, and at the same time control the opening of the air regulating device to start working.

[0106] Among them, as Figure 1 and Figure 2 shown, the control method includes: obtaining the rotation speed of the upstream fan 111 through the upstream sensor, controlling several air regulating plate units 13 to rotate to open the air duct 20 to form several ventilation openings 1310; obtaining the rotation speeds of several downstream fans 121 through the downstream sensor, and judging whether the rotation speeds of any two downstream fans 121 are the same; if not, enter the adjustment step, control several air regulating plate units 13 to rotate respectively to adjust the sizes of all the ventilation openings 1310 until the rotation speeds of all the downstream fans 121 are the same, and then maintain the current size of the ventilation openings 1310 to continue air supply.

[0107] If the rotation speeds of all the downstream fans 121 are the same, then maintain the current size of the ventilation openings 1310 to continue air supply.

[0108] 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 sizes of several ventilation openings 310 to change the air volume conveyed to the downstream of the air duct 20 until the rotation speeds of all the downstream fans 121 are the same. It can be considered that the wind speed downstream of the air duct 20 is uniform, thus meeting the storage needs of users or the detection requirements of the odor detection device 30, and further improving the user experience.

[0109] The control method of the present invention can selectively control a certain ventilation opening 1310 to adjust the wind speed at the corresponding position in a targeted manner through the design of multiple ventilation openings 1310, improving the convenience and working efficiency of the air regulating device 10 in adjusting the wind speed.

[0110] The control method of the present invention can provide relatively uniform gas to the odor detection device 30 after adjusting the gas in the storage room through the air regulating device 10, so as to improve the detection accuracy of the odor detection device 30.

[0111] Specifically, after obtaining the rotation speed of the upstream fan 111 through the upstream sensor, compare the rotation speed of the upstream fan 111 with the first threshold. If the rotation speed of the upstream fan 111 is greater than the first threshold, then control the air regulating plate unit 13 to open the air duct to form a ventilation opening 1310, and then supply air to the downstream of the air duct 20, thereby driving the downstream fan 121 to rotate.

[0112] If the rotational speed of the upstream fan 111 is not greater than the first threshold value, wait for a preset duration continuously. If the rotational speed of the upstream fan 111 is still not greater than the first threshold value, then control the blower 40 to increase the air volume, and then control the upstream sensor to detect the rotational speed of the upstream fan 111.

[0113] Preferably, after the downstream fan 121 rotates and lasts for the first duration, after the rotating downstream fan 121 is in a stable state, then obtain the rotational speeds of several downstream fans 121, so that the detection result of the downstream sensor is more representative and accurate.

[0114] As Figure 13 shown, the adjustment step includes: further determining whether the rotational speed difference between any two downstream fans 121 is greater than the second threshold value. If so, enter the high-amplitude adjustment step; if not, enter the low-amplitude adjustment step. The air deflector 131 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.

[0115] In the embodiment where the rotating shaft 132 is fixed in the middle of the air deflector 131, the high-amplitude adjustment step includes: determining the air deflector 131 close to the downstream fan 121 with a higher rotational speed, and controlling the rotating shaft 132 of this air deflector 131 to rotate in the reverse direction to reduce the sizes of the ventilation openings 1310 at both ends of this air deflector 131; and / or, determining the air deflector 131 close to the downstream fan 121 with a lower rotational speed, and controlling the corresponding rotating shaft 132 of this air deflector 131 to continue rotating to increase the sizes of the ventilation openings 1310 at both ends of this air deflector 131. The sizes of the ventilation openings 1310 can be adjusted specifically, thereby reducing the rotational speed of the downstream fan 121 with a higher rotational speed and / or increasing the rotational speed of the downstream fan 121 with a lower rotational speed, and improving the adjustment efficiency.

[0116] Then, re-obtain the rotational speed difference between any two downstream fans 121. If the rotational speed difference between any two downstream fans 121 is still greater than the second threshold value, then re-enter the high-amplitude adjustment step. If the rotational speed difference between any two downstream fans 121 is not greater than the second threshold value, then enter the low-amplitude adjustment step.

[0117] In an embodiment where the rotating shaft 132 is fixed to one end of the air regulating plate 131, the high-amplitude adjustment step includes: determining the air regulating plate 131 close to the downstream fan 121 with a higher rotation speed, and controlling the air regulating plate 131 to rotate in the opposite direction relative to the rotating shaft 132 to reduce the ventilation opening 1310 corresponding to the air regulating plate 131; and / or, determining the air regulating plate 131 close to the downstream fan 121 with a lower rotation speed, and controlling the air regulating plate 131 to continue to rotate relative to the rotating shaft 132 to increase the ventilation opening 1310 corresponding to the air regulating plate 131; thereby, the rotation speed of the downstream fan 121 with a higher rotation speed can be decreased and / or the rotation speed of the downstream fan 121 with a lower rotation speed can be increased in a targeted manner, improving the adjustment efficiency.

[0118] Re-obtain the rotation speed difference between any two downstream fans 121 until the rotation speed difference between any two downstream fans 121 is not greater than the second threshold, and then enter the low-amplitude adjustment step.

[0119] The low-amplitude adjustment step includes: controlling all the air regulating plate units 13 to rotate slightly respectively, and finely adjusting until the rotation speeds of all the downstream fans 121 are the same, and it is determined that the air supply on the air outlet side of the air duct 20 is relatively uniform.

[0120] Based on any of the above adjustment steps, as Figure 12 shown, after the rotation speeds of all the downstream fans 121 are the same, control the odor detection device 30 to detect the air volume at the air outlet of the air duct and obtain the first air volume detection value, and then compare it with the preset air volume value, so that the air volume entering the odor detection device 30 meets the test requirements, improving the detection accuracy.

[0121] If the first air volume detection value is greater than the first preset air volume value, control the fan 40 to reduce the air volume; if the first air volume detection value is less than the second preset air volume value, control the fan 40 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, control the odor detection device 30 to start detecting, where the first detection threshold is greater than the second detection threshold.

[0122] Of course, the step of controlling the odor detection device 30 to detect the air volume at the air outlet of the air duct can also directly detect the air volume at the air outlet of the air duct 20 after obtaining the rotation speed of the downstream fan 121, and then adjust the uniformity of the gas at the air outlet of the air duct 20 after the air volume at the air outlet meets the requirements.

[0123] Further, after controlling the fan 40 to reduce the air volume or controlling the fan to increase the air volume, wait for the second preset duration to make the downstream fan 121 in a stable rotation state, and then obtain the rotation speed of the downstream fan 121 and determine whether the rotation speeds of any two of the downstream fans 121 are the same, and then enter the next process.

[0124] In summary, the air regulating device 10 of the present invention adjusts the rotation angle of the air regulating plate unit 13 according to the rotational speeds of the upstream fan 111 and the downstream fan 121 by the control unit, so as to adjust the uniformity of the air outlet at the downstream of the air duct 20, making the air entering the storage room relatively uniform, improving the quality of item preservation, and further enhancing the user experience.

[0125] It should be understood that although this specification is described according to 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 understandable by those skilled in the art.

[0126] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and are not used to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An air regulating device, which is used in an air duct, and is characterized in that, The air regulating device includes: An upstream air velocity measuring component, including a plurality of upstream fans and an upstream sensor for detecting the rotation speed of the upstream fans; A downstream air velocity measuring component, including at least two downstream fans and a downstream sensor for detecting the rotation speed of the downstream fans; A plurality of air regulating plate units, located between the upstream air velocity measuring component and the downstream air velocity measuring component. The plurality of air regulating plate units are rotatably connected in the air duct. When the plurality of air regulating plate units are coplanar, the air duct is closed; A control unit, communicatively connected to the downstream sensor, the upstream sensor, and the air regulating plate units respectively; Wherein, the control unit controls the rotation of the air regulating plate units according to the signals of the downstream sensor and the upstream sensor to adjust the angles of the air regulating plate units.

2. The air regulating device according to claim 1, characterized in that, The air regulating plate unit includes a rotating shaft for rotatably connecting to the inner wall of the air duct and an air regulating plate fixedly connected to the rotating shaft. The control unit is communicatively connected to the rotating shaft.

3. The air regulating device according to claim 2, characterized in that, The air regulating plate is fixedly connected to the rotating shaft at the middle or one end in the radial direction of the air duct.

4. The air regulating device according to claim 2, characterized in that, The height of the air regulating plate is not lower than the height of the upstream fan and the height of the downstream fan.

5. The air regulating device according to claim 2, characterized in that, The air regulating plates are arranged in one-to-one correspondence with the upstream fans. In the axial direction of the air duct, the connection position between two adjacent air regulating plates is located between two adjacent upstream fans.

6. The air regulating device according to any one of claims 1 to 5, characterized in that, The height of the upstream fan is not lower than the height of the downstream fan.

7. The air regulating device according to any one of claims 1 to 5, characterized in that, The number of the upstream fans is greater than the number of the downstream fans, and the dimension of the downstream air velocity measuring component in the radial direction of the air duct is not less than half of the total length of a plurality of air regulating plate units.

8. The air regulating device according to any one of claims 1 to 5, characterized in that, A plurality of the downstream fans enclose a wind gathering area.

9. The air regulating device according to claim 8, characterized in that, The downstream fans are at least three, and the downstream fans are arranged in a trumpet shape or a V shape.

10. A refrigeration device, characterized in that, It includes an air duct and the air regulating device according to any one of claims 1 to 9 provided in the air duct. 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.

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